Adds new method to create a trimmed string

- adds `const` in various places
- uses the new trimmed string method
- adds various memory releases in

Framework/IJSVG/IJSVG.xcodeproj/project.pbxproj

@@ -7,10 +7,20 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		5919E65723F47FF60051873A /* IJSVGUnitRect.h in Headers */ = {isa = PBXBuildFile; fileRef = 5919E65523F47FF60051873A /* IJSVGUnitRect.h */; settings = {ATTRIBUTES = (Public, ); }; };
+		5919E65823F47FF60051873A /* IJSVGUnitRect.m in Sources */ = {isa = PBXBuildFile; fileRef = 5919E65623F47FF60051873A /* IJSVGUnitRect.m */; };
+		5919E65B23F480330051873A /* IJSVGUnitPoint.h in Headers */ = {isa = PBXBuildFile; fileRef = 5919E65923F480330051873A /* IJSVGUnitPoint.h */; settings = {ATTRIBUTES = (Public, ); }; };
+		5919E65C23F480330051873A /* IJSVGUnitPoint.m in Sources */ = {isa = PBXBuildFile; fileRef = 5919E65A23F480330051873A /* IJSVGUnitPoint.m */; };
+		591A3E4D25CC91F800AD45B7 /* IJSVGParsing.h in Headers */ = {isa = PBXBuildFile; fileRef = 591A3E4B25CC91F800AD45B7 /* IJSVGParsing.h */; settings = {ATTRIBUTES = (Public, ); }; };
+		591A3E4E25CC91F800AD45B7 /* IJSVGParsing.m in Sources */ = {isa = PBXBuildFile; fileRef = 591A3E4C25CC91F800AD45B7 /* IJSVGParsing.m */; };
+		594A10DA248D7C90001A3181 /* NSImage+IJSVGAdditions.h in Headers */ = {isa = PBXBuildFile; fileRef = 594A10D8248D7C90001A3181 /* NSImage+IJSVGAdditions.h */; settings = {ATTRIBUTES = (Public, ); }; };
+		594A10DB248D7C90001A3181 /* NSImage+IJSVGAdditions.m in Sources */ = {isa = PBXBuildFile; fileRef = 594A10D9248D7C90001A3181 /* NSImage+IJSVGAdditions.m */; };
 		594CF55F238FF462009B251B /* AppKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 594CF55E238FF462009B251B /* AppKit.framework */; };
 		594CF561238FF46C009B251B /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 594CF560238FF46C009B251B /* Foundation.framework */; };
 		594CF563238FF473009B251B /* QuartzCore.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 594CF562238FF473009B251B /* QuartzCore.framework */; };
 		599EB4D3238FF570004CB6BC /* libobjc.tbd in Frameworks */ = {isa = PBXBuildFile; fileRef = 599EB4D2238FF535004CB6BC /* libobjc.tbd */; };
+		59A24EBC23F480EA0090C374 /* IJSVGUnitSize.h in Headers */ = {isa = PBXBuildFile; fileRef = 59A24EBA23F480EA0090C374 /* IJSVGUnitSize.h */; settings = {ATTRIBUTES = (Public, ); }; };
+		59A24EBD23F480EA0090C374 /* IJSVGUnitSize.m in Sources */ = {isa = PBXBuildFile; fileRef = 59A24EBB23F480EA0090C374 /* IJSVGUnitSize.m */; };
 		59E7CFAF23B148600077D599 /* IJSVGCommandParser.h in Headers */ = {isa = PBXBuildFile; fileRef = 59E7CFAD23B148600077D599 /* IJSVGCommandParser.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		59E7CFB023B148600077D599 /* IJSVGCommandParser.m in Sources */ = {isa = PBXBuildFile; fileRef = 59E7CFAE23B148600077D599 /* IJSVGCommandParser.m */; };
 		59EB75D623905F7300F5AE63 /* IJSVGLayer.h in Headers */ = {isa = PBXBuildFile; fileRef = 59EB756523905F6B00F5AE63 /* IJSVGLayer.h */; settings = {ATTRIBUTES = (Public, ); }; };
@@ -22,7 +32,6 @@
 		59EB75DC23905F7300F5AE63 /* IJSVGText.h in Headers */ = {isa = PBXBuildFile; fileRef = 59EB756B23905F6B00F5AE63 /* IJSVGText.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		59EB75DD23905F7300F5AE63 /* IJSVGCommandQuadraticCurve.m in Sources */ = {isa = PBXBuildFile; fileRef = 59EB756C23905F6B00F5AE63 /* IJSVGCommandQuadraticCurve.m */; };
 		59EB75DE23905F7300F5AE63 /* IJSVGCommandVerticalLine.h in Headers */ = {isa = PBXBuildFile; fileRef = 59EB756D23905F6C00F5AE63 /* IJSVGCommandVerticalLine.h */; settings = {ATTRIBUTES = (Public, ); }; };
-		59EB75DF23905F7300F5AE63 /* IJSVGWriter.h in Headers */ = {isa = PBXBuildFile; fileRef = 59EB756E23905F6C00F5AE63 /* IJSVGWriter.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		59EB75E023905F7300F5AE63 /* IJSVGStyleSheet.h in Headers */ = {isa = PBXBuildFile; fileRef = 59EB756F23905F6C00F5AE63 /* IJSVGStyleSheet.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		59EB75E123905F7300F5AE63 /* IJSVGCommandSmoothCurve.h in Headers */ = {isa = PBXBuildFile; fileRef = 59EB757023905F6C00F5AE63 /* IJSVGCommandSmoothCurve.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		59EB75E223905F7300F5AE63 /* IJSVGColorList.m in Sources */ = {isa = PBXBuildFile; fileRef = 59EB757123905F6C00F5AE63 /* IJSVGColorList.m */; };
@@ -49,12 +58,10 @@
 		59EB75F723905F7300F5AE63 /* IJSVGDef.h in Headers */ = {isa = PBXBuildFile; fileRef = 59EB758623905F6C00F5AE63 /* IJSVGDef.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		59EB75F823905F7300F5AE63 /* IJSVGCommandHorizontalLine.m in Sources */ = {isa = PBXBuildFile; fileRef = 59EB758723905F6C00F5AE63 /* IJSVGCommandHorizontalLine.m */; };
 		59EB75F923905F7300F5AE63 /* IJSVGFontConverter.h in Headers */ = {isa = PBXBuildFile; fileRef = 59EB758823905F6D00F5AE63 /* IJSVGFontConverter.h */; settings = {ATTRIBUTES = (Public, ); }; };
-		59EB75FA23905F7300F5AE63 /* IJSVGWriter.m in Sources */ = {isa = PBXBuildFile; fileRef = 59EB758923905F6D00F5AE63 /* IJSVGWriter.m */; };
 		59EB75FB23905F7300F5AE63 /* IJSVGPath.m in Sources */ = {isa = PBXBuildFile; fileRef = 59EB758A23905F6D00F5AE63 /* IJSVGPath.m */; };
 		59EB75FC23905F7300F5AE63 /* IJSVGGroup.h in Headers */ = {isa = PBXBuildFile; fileRef = 59EB758B23905F6D00F5AE63 /* IJSVGGroup.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		59EB75FD23905F7300F5AE63 /* IJSVGPatternLayer.m in Sources */ = {isa = PBXBuildFile; fileRef = 59EB758C23905F6D00F5AE63 /* IJSVGPatternLayer.m */; };
 		59EB75FE23905F7300F5AE63 /* IJSVGRenderingStyle.m in Sources */ = {isa = PBXBuildFile; fileRef = 59EB758D23905F6D00F5AE63 /* IJSVGRenderingStyle.m */; };
-		59EB75FF23905F7300F5AE63 /* IJSVGBezierPathAdditions.m in Sources */ = {isa = PBXBuildFile; fileRef = 59EB758E23905F6D00F5AE63 /* IJSVGBezierPathAdditions.m */; };
 		59EB760023905F7300F5AE63 /* IJSVGGradientLayer.m in Sources */ = {isa = PBXBuildFile; fileRef = 59EB758F23905F6D00F5AE63 /* IJSVGGradientLayer.m */; };
 		59EB760123905F7300F5AE63 /* IJSVGLayerTree.m in Sources */ = {isa = PBXBuildFile; fileRef = 59EB759023905F6D00F5AE63 /* IJSVGLayerTree.m */; };
 		59EB760223905F7300F5AE63 /* IJSVGCommandVerticalLine.m in Sources */ = {isa = PBXBuildFile; fileRef = 59EB759123905F6D00F5AE63 /* IJSVGCommandVerticalLine.m */; };
@@ -105,7 +112,6 @@
 		59EB763123905F7300F5AE63 /* IJSVGText.m in Sources */ = {isa = PBXBuildFile; fileRef = 59EB75C023905F7100F5AE63 /* IJSVGText.m */; };
 		59EB763223905F7300F5AE63 /* IJSVGView.m in Sources */ = {isa = PBXBuildFile; fileRef = 59EB75C123905F7100F5AE63 /* IJSVGView.m */; };
 		59EB763323905F7300F5AE63 /* IJSVGLinearGradient.m in Sources */ = {isa = PBXBuildFile; fileRef = 59EB75C223905F7100F5AE63 /* IJSVGLinearGradient.m */; };
-		59EB763423905F7300F5AE63 /* IJSVGBezierPathAdditions.h in Headers */ = {isa = PBXBuildFile; fileRef = 59EB75C323905F7100F5AE63 /* IJSVGBezierPathAdditions.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		59EB763523905F7300F5AE63 /* IJSVGStyleSheetSelector.m in Sources */ = {isa = PBXBuildFile; fileRef = 59EB75C423905F7100F5AE63 /* IJSVGStyleSheetSelector.m */; };
 		59EB763623905F7300F5AE63 /* IJSVGImageLayer.m in Sources */ = {isa = PBXBuildFile; fileRef = 59EB75C523905F7100F5AE63 /* IJSVGImageLayer.m */; };
 		59EB763723905F7300F5AE63 /* IJSVGCommandClose.m in Sources */ = {isa = PBXBuildFile; fileRef = 59EB75C623905F7100F5AE63 /* IJSVGCommandClose.m */; };
@@ -124,15 +130,27 @@
 		59EB764423905F7300F5AE63 /* IJSVGRendering.h in Headers */ = {isa = PBXBuildFile; fileRef = 59EB75D323905F7300F5AE63 /* IJSVGRendering.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		59EB764523905F7300F5AE63 /* IJSVGExporter.h in Headers */ = {isa = PBXBuildFile; fileRef = 59EB75D423905F7300F5AE63 /* IJSVGExporter.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		59EB764623905F7300F5AE63 /* IJSVGRendering.m in Sources */ = {isa = PBXBuildFile; fileRef = 59EB75D523905F7300F5AE63 /* IJSVGRendering.m */; };
+		59F36508262F1ABB00BCE3FD /* IJSVGColorType.h in Headers */ = {isa = PBXBuildFile; fileRef = 59F36506262F1ABB00BCE3FD /* IJSVGColorType.h */; settings = {ATTRIBUTES = (Public, ); }; };
+		59F36509262F1ABB00BCE3FD /* IJSVGColorType.m in Sources */ = {isa = PBXBuildFile; fileRef = 59F36507262F1ABB00BCE3FD /* IJSVGColorType.m */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
+		5919E65523F47FF60051873A /* IJSVGUnitRect.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = IJSVGUnitRect.h; sourceTree = "<group>"; };
+		5919E65623F47FF60051873A /* IJSVGUnitRect.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = IJSVGUnitRect.m; sourceTree = "<group>"; };
+		5919E65923F480330051873A /* IJSVGUnitPoint.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = IJSVGUnitPoint.h; sourceTree = "<group>"; };
+		5919E65A23F480330051873A /* IJSVGUnitPoint.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = IJSVGUnitPoint.m; sourceTree = "<group>"; };
+		591A3E4B25CC91F800AD45B7 /* IJSVGParsing.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = IJSVGParsing.h; sourceTree = "<group>"; };
+		591A3E4C25CC91F800AD45B7 /* IJSVGParsing.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = IJSVGParsing.m; sourceTree = "<group>"; };
+		594A10D8248D7C90001A3181 /* NSImage+IJSVGAdditions.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "NSImage+IJSVGAdditions.h"; sourceTree = "<group>"; };
+		594A10D9248D7C90001A3181 /* NSImage+IJSVGAdditions.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = "NSImage+IJSVGAdditions.m"; sourceTree = "<group>"; };
 		594CF46F238FF38E009B251B /* IJSVG.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = IJSVG.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		594CF473238FF38E009B251B /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		594CF55E238FF462009B251B /* AppKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = AppKit.framework; path = System/Library/Frameworks/AppKit.framework; sourceTree = SDKROOT; };
 		594CF560238FF46C009B251B /* Foundation.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Foundation.framework; path = System/Library/Frameworks/Foundation.framework; sourceTree = SDKROOT; };
 		594CF562238FF473009B251B /* QuartzCore.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = QuartzCore.framework; path = System/Library/Frameworks/QuartzCore.framework; sourceTree = SDKROOT; };
 		599EB4D2238FF535004CB6BC /* libobjc.tbd */ = {isa = PBXFileReference; lastKnownFileType = "sourcecode.text-based-dylib-definition"; name = libobjc.tbd; path = usr/lib/libobjc.tbd; sourceTree = SDKROOT; };
+		59A24EBA23F480EA0090C374 /* IJSVGUnitSize.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = IJSVGUnitSize.h; sourceTree = "<group>"; };
+		59A24EBB23F480EA0090C374 /* IJSVGUnitSize.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = IJSVGUnitSize.m; sourceTree = "<group>"; };
 		59E7CFAD23B148600077D599 /* IJSVGCommandParser.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = IJSVGCommandParser.h; path = IJSVG/Source/Parsing/IJSVGCommandParser.h; sourceTree = SOURCE_ROOT; };
 		59E7CFAE23B148600077D599 /* IJSVGCommandParser.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; name = IJSVGCommandParser.m; path = IJSVG/Source/Parsing/IJSVGCommandParser.m; sourceTree = SOURCE_ROOT; };
 		59EB756523905F6B00F5AE63 /* IJSVGLayer.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = IJSVGLayer.h; sourceTree = "<group>"; };
@@ -144,7 +162,6 @@
 		59EB756B23905F6B00F5AE63 /* IJSVGText.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = IJSVGText.h; sourceTree = "<group>"; };
 		59EB756C23905F6B00F5AE63 /* IJSVGCommandQuadraticCurve.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = IJSVGCommandQuadraticCurve.m; sourceTree = "<group>"; };
 		59EB756D23905F6C00F5AE63 /* IJSVGCommandVerticalLine.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = IJSVGCommandVerticalLine.h; sourceTree = "<group>"; };
-		59EB756E23905F6C00F5AE63 /* IJSVGWriter.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = IJSVGWriter.h; sourceTree = "<group>"; };
 		59EB756F23905F6C00F5AE63 /* IJSVGStyleSheet.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = IJSVGStyleSheet.h; sourceTree = "<group>"; };
 		59EB757023905F6C00F5AE63 /* IJSVGCommandSmoothCurve.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = IJSVGCommandSmoothCurve.h; sourceTree = "<group>"; };
 		59EB757123905F6C00F5AE63 /* IJSVGColorList.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = IJSVGColorList.m; sourceTree = "<group>"; };
@@ -171,12 +188,10 @@
 		59EB758623905F6C00F5AE63 /* IJSVGDef.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = IJSVGDef.h; sourceTree = "<group>"; };
 		59EB758723905F6C00F5AE63 /* IJSVGCommandHorizontalLine.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = IJSVGCommandHorizontalLine.m; sourceTree = "<group>"; };
 		59EB758823905F6D00F5AE63 /* IJSVGFontConverter.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = IJSVGFontConverter.h; sourceTree = "<group>"; };
-		59EB758923905F6D00F5AE63 /* IJSVGWriter.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = IJSVGWriter.m; sourceTree = "<group>"; };
 		59EB758A23905F6D00F5AE63 /* IJSVGPath.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = IJSVGPath.m; sourceTree = "<group>"; };
 		59EB758B23905F6D00F5AE63 /* IJSVGGroup.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = IJSVGGroup.h; sourceTree = "<group>"; };
 		59EB758C23905F6D00F5AE63 /* IJSVGPatternLayer.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = IJSVGPatternLayer.m; sourceTree = "<group>"; };
 		59EB758D23905F6D00F5AE63 /* IJSVGRenderingStyle.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = IJSVGRenderingStyle.m; sourceTree = "<group>"; };
-		59EB758E23905F6D00F5AE63 /* IJSVGBezierPathAdditions.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = IJSVGBezierPathAdditions.m; sourceTree = "<group>"; };
 		59EB758F23905F6D00F5AE63 /* IJSVGGradientLayer.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = IJSVGGradientLayer.m; sourceTree = "<group>"; };
 		59EB759023905F6D00F5AE63 /* IJSVGLayerTree.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = IJSVGLayerTree.m; sourceTree = "<group>"; };
 		59EB759123905F6D00F5AE63 /* IJSVGCommandVerticalLine.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = IJSVGCommandVerticalLine.m; sourceTree = "<group>"; };
@@ -227,7 +242,6 @@
 		59EB75C023905F7100F5AE63 /* IJSVGText.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = IJSVGText.m; sourceTree = "<group>"; };
 		59EB75C123905F7100F5AE63 /* IJSVGView.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = IJSVGView.m; sourceTree = "<group>"; };
 		59EB75C223905F7100F5AE63 /* IJSVGLinearGradient.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = IJSVGLinearGradient.m; sourceTree = "<group>"; };
-		59EB75C323905F7100F5AE63 /* IJSVGBezierPathAdditions.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = IJSVGBezierPathAdditions.h; sourceTree = "<group>"; };
 		59EB75C423905F7100F5AE63 /* IJSVGStyleSheetSelector.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = IJSVGStyleSheetSelector.m; sourceTree = "<group>"; };
 		59EB75C523905F7100F5AE63 /* IJSVGImageLayer.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = IJSVGImageLayer.m; sourceTree = "<group>"; };
 		59EB75C623905F7100F5AE63 /* IJSVGCommandClose.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = IJSVGCommandClose.m; sourceTree = "<group>"; };
@@ -246,6 +260,8 @@
 		59EB75D323905F7300F5AE63 /* IJSVGRendering.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = IJSVGRendering.h; sourceTree = "<group>"; };
 		59EB75D423905F7300F5AE63 /* IJSVGExporter.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = IJSVGExporter.h; sourceTree = "<group>"; };
 		59EB75D523905F7300F5AE63 /* IJSVGRendering.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = IJSVGRendering.m; sourceTree = "<group>"; };
+		59F36506262F1ABB00BCE3FD /* IJSVGColorType.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = IJSVGColorType.h; sourceTree = "<group>"; };
+		59F36507262F1ABB00BCE3FD /* IJSVGColorType.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = IJSVGColorType.m; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -316,6 +332,8 @@
 				59EB758523905F6C00F5AE63 /* IJSVGColor.m */,
 				59EB75A923905F6F00F5AE63 /* IJSVGColorList.h */,
 				59EB757123905F6C00F5AE63 /* IJSVGColorList.m */,
+				59F36506262F1ABB00BCE3FD /* IJSVGColorType.h */,
+				59F36507262F1ABB00BCE3FD /* IJSVGColorType.m */,
 			);
 			path = Colors;
 			sourceTree = "<group>";
@@ -333,8 +351,6 @@
 				59EB757B23905F6C00F5AE63 /* IJSVGLayer.m */,
 				59EB75BF23905F7000F5AE63 /* IJSVGPatternLayer.h */,
 				59EB758C23905F6D00F5AE63 /* IJSVGPatternLayer.m */,
-				59EB757223905F6C00F5AE63 /* IJSVGRadialGradient.h */,
-				59EB75A623905F6F00F5AE63 /* IJSVGRadialGradient.m */,
 				59EB759723905F6D00F5AE63 /* IJSVGShapeLayer.h */,
 				59EB757A23905F6C00F5AE63 /* IJSVGShapeLayer.m */,
 				59EB75A423905F6E00F5AE63 /* IJSVGStrokeLayer.h */,
@@ -363,6 +379,8 @@
 				59EB756923905F6B00F5AE63 /* IJSVGDef.m */,
 				59EB759F23905F6E00F5AE63 /* IJSVGLinearGradient.h */,
 				59EB75C223905F7100F5AE63 /* IJSVGLinearGradient.m */,
+				59EB757223905F6C00F5AE63 /* IJSVGRadialGradient.h */,
+				59EB75A623905F6F00F5AE63 /* IJSVGRadialGradient.m */,
 				59EB75AB23905F6F00F5AE63 /* IJSVGGradient.h */,
 				59EB75D223905F7300F5AE63 /* IJSVGGradient.m */,
 				59EB758B23905F6D00F5AE63 /* IJSVGGroup.h */,
@@ -396,6 +414,14 @@
 				59EB75BA23905F7000F5AE63 /* IJSVGUnitLength.m */,
 				59EB759423905F6D00F5AE63 /* IJSVGUtils.h */,
 				59EB758023905F6C00F5AE63 /* IJSVGUtils.m */,
+				5919E65523F47FF60051873A /* IJSVGUnitRect.h */,
+				5919E65623F47FF60051873A /* IJSVGUnitRect.m */,
+				5919E65923F480330051873A /* IJSVGUnitPoint.h */,
+				5919E65A23F480330051873A /* IJSVGUnitPoint.m */,
+				59A24EBA23F480EA0090C374 /* IJSVGUnitSize.h */,
+				59A24EBB23F480EA0090C374 /* IJSVGUnitSize.m */,
+				591A3E4B25CC91F800AD45B7 /* IJSVGParsing.h */,
+				591A3E4C25CC91F800AD45B7 /* IJSVGParsing.m */,
 			);
 			path = Utils;
 			sourceTree = "<group>";
@@ -427,10 +453,10 @@
 		592ABBEB2397A11800F44380 /* Additions */ = {
 			isa = PBXGroup;
 			children = (
-				59EB75C323905F7100F5AE63 /* IJSVGBezierPathAdditions.h */,
-				59EB758E23905F6D00F5AE63 /* IJSVGBezierPathAdditions.m */,
 				59EB75B823905F7000F5AE63 /* IJSVGStringAdditions.h */,
 				59EB757823905F6C00F5AE63 /* IJSVGStringAdditions.m */,
+				594A10D8248D7C90001A3181 /* NSImage+IJSVGAdditions.h */,
+				594A10D9248D7C90001A3181 /* NSImage+IJSVGAdditions.m */,
 			);
 			path = Additions;
 			sourceTree = "<group>";
@@ -484,8 +510,6 @@
 				59EB757D23905F6C00F5AE63 /* IJSVGImageRep.m */,
 				59EB75CD23905F7200F5AE63 /* IJSVGView.h */,
 				59EB75C123905F7100F5AE63 /* IJSVGView.m */,
-				59EB756E23905F6C00F5AE63 /* IJSVGWriter.h */,
-				59EB758923905F6D00F5AE63 /* IJSVGWriter.m */,
 			);
 			path = Core;
 			sourceTree = "<group>";
@@ -517,7 +541,6 @@
 			files = (
 				59EB762623905F7300F5AE63 /* IJSVGImage.h in Headers */,
 				59EB760823905F7300F5AE63 /* IJSVGShapeLayer.h in Headers */,
-				59EB75DF23905F7300F5AE63 /* IJSVGWriter.h in Headers */,
 				59EB760F23905F7300F5AE63 /* IJSVGCommandEllipticalArc.h in Headers */,
 				59EB75F523905F7300F5AE63 /* IJSVGError.h in Headers */,
 				59EB763E23905F7300F5AE63 /* IJSVGView.h in Headers */,
@@ -562,14 +585,19 @@
 				59EB75D623905F7300F5AE63 /* IJSVGLayer.h in Headers */,
 				59EB763023905F7300F5AE63 /* IJSVGPatternLayer.h in Headers */,
 				59EB75F023905F7300F5AE63 /* IJSVGStyleSheetSelectorRaw.h in Headers */,
-				59EB763423905F7300F5AE63 /* IJSVGBezierPathAdditions.h in Headers */,
 				59EB761823905F7300F5AE63 /* IJSVGParser.h in Headers */,
 				59EB761E23905F7300F5AE63 /* IJSVGGroupLayer.h in Headers */,
 				59EB761D23905F7300F5AE63 /* IJSVGStyle.h in Headers */,
+				5919E65723F47FF60051873A /* IJSVGUnitRect.h in Headers */,
+				5919E65B23F480330051873A /* IJSVGUnitPoint.h in Headers */,
+				591A3E4D25CC91F800AD45B7 /* IJSVGParsing.h in Headers */,
+				59A24EBC23F480EA0090C374 /* IJSVGUnitSize.h in Headers */,
 				59EB764523905F7300F5AE63 /* IJSVGExporter.h in Headers */,
+				59F36508262F1ABB00BCE3FD /* IJSVGColorType.h in Headers */,
 				59E7CFAF23B148600077D599 /* IJSVGCommandParser.h in Headers */,
 				59EB762823905F7300F5AE63 /* IJSVGCommandClose.h in Headers */,
 				59EB75E423905F7300F5AE63 /* IJSVGGradientUnitLength.h in Headers */,
+				594A10DA248D7C90001A3181 /* NSImage+IJSVGAdditions.h in Headers */,
 				59EB762D23905F7300F5AE63 /* IJSVGLayerTree.h in Headers */,
 				59EB760B23905F7300F5AE63 /* IJSVGStyleSheetSelector.h in Headers */,
 			);
@@ -602,7 +630,7 @@
 		594CF466238FF38E009B251B /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 1100;
+				LastUpgradeCheck = 1220;
 				ORGANIZATIONNAME = "Curtis Hard";
 				TargetAttributes = {
 					594CF46E238FF38E009B251B = {
@@ -644,16 +672,19 @@
 			buildActionMask = 2147483647;
 			files = (
 				59EB763123905F7300F5AE63 /* IJSVGText.m in Sources */,
+				59A24EBD23F480EA0090C374 /* IJSVGUnitSize.m in Sources */,
 				59EB760223905F7300F5AE63 /* IJSVGCommandVerticalLine.m in Sources */,
 				59EB75FD23905F7300F5AE63 /* IJSVGPatternLayer.m in Sources */,
 				59EB763923905F7300F5AE63 /* IJSVGCommandSmoothQuadraticCurve.m in Sources */,
 				59EB75D823905F7300F5AE63 /* IJSVGStyleSheetRule.m in Sources */,
 				59EB75FB23905F7300F5AE63 /* IJSVGPath.m in Sources */,
+				59F36509262F1ABB00BCE3FD /* IJSVGColorType.m in Sources */,
 				59EB760123905F7300F5AE63 /* IJSVGLayerTree.m in Sources */,
 				59EB763A23905F7300F5AE63 /* IJSVGForeignObject.m in Sources */,
 				59EB761123905F7300F5AE63 /* IJSVGCommand.m in Sources */,
 				59EB760923905F7300F5AE63 /* IJSVGCommandCurve.m in Sources */,
 				59EB763323905F7300F5AE63 /* IJSVGLinearGradient.m in Sources */,
+				594A10DB248D7C90001A3181 /* NSImage+IJSVGAdditions.m in Sources */,
 				59EB761923905F7300F5AE63 /* IJSVGCommandSmoothCurve.m in Sources */,
 				59EB761323905F7300F5AE63 /* IJSVG.m in Sources */,
 				59EB763623905F7300F5AE63 /* IJSVGImageLayer.m in Sources */,
@@ -663,22 +694,23 @@
 				59EB763523905F7300F5AE63 /* IJSVGStyleSheetSelector.m in Sources */,
 				59E7CFB023B148600077D599 /* IJSVGCommandParser.m in Sources */,
 				59EB760723905F7300F5AE63 /* IJSVGNode.m in Sources */,
+				5919E65C23F480330051873A /* IJSVGUnitPoint.m in Sources */,
 				59EB75E923905F7300F5AE63 /* IJSVGStringAdditions.m in Sources */,
 				59EB761723905F7300F5AE63 /* IJSVGRadialGradient.m in Sources */,
 				59EB75E223905F7300F5AE63 /* IJSVGColorList.m in Sources */,
 				59EB75ED23905F7300F5AE63 /* IJSVGFontConverter.m in Sources */,
 				59EB763C23905F7300F5AE63 /* IJSVGCommandEllipticalArc.m in Sources */,
 				59EB75E723905F7300F5AE63 /* IJSVGImage.m in Sources */,
-				59EB75FF23905F7300F5AE63 /* IJSVGBezierPathAdditions.m in Sources */,
 				59EB75E623905F7300F5AE63 /* IJSVGStyle.m in Sources */,
 				59EB75EB23905F7300F5AE63 /* IJSVGShapeLayer.m in Sources */,
 				59EB75F623905F7300F5AE63 /* IJSVGColor.m in Sources */,
 				59EB75F323905F7300F5AE63 /* IJSVGGroupLayer.m in Sources */,
+				591A3E4E25CC91F800AD45B7 /* IJSVGParsing.m in Sources */,
+				5919E65823F47FF60051873A /* IJSVGUnitRect.m in Sources */,
 				59EB762523905F7300F5AE63 /* IJSVGTransform.m in Sources */,
 				59EB760023905F7300F5AE63 /* IJSVGGradientLayer.m in Sources */,
 				59EB762B23905F7300F5AE63 /* IJSVGUnitLength.m in Sources */,
 				59EB75F823905F7300F5AE63 /* IJSVGCommandHorizontalLine.m in Sources */,
-				59EB75FA23905F7300F5AE63 /* IJSVGWriter.m in Sources */,
 				59EB764623905F7300F5AE63 /* IJSVGRendering.m in Sources */,
 				59EB762E23905F7300F5AE63 /* IJSVGExporter.m in Sources */,
 				59EB761623905F7300F5AE63 /* IJSVGParser.m in Sources */,
@@ -731,6 +763,7 @@
 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = NO;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
@@ -746,6 +779,7 @@
 				GCC_DYNAMIC_NO_PIC = NO;
 				GCC_NO_COMMON_BLOCKS = YES;
 				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREFIX_HEADER = "";
 				GCC_PREPROCESSOR_DEFINITIONS = (
 					"DEBUG=1",
 					"$(inherited)",
@@ -792,6 +826,7 @@
 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = NO;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
@@ -805,6 +840,7 @@
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu11;
 				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_PREFIX_HEADER = "";
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
 				GCC_WARN_UNDECLARED_SELECTOR = YES;

Framework/IJSVG/IJSVG.xcodeproj/xcshareddata/xcschemes/IJSVG.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1130"
+   LastUpgradeVersion = "1250"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

Framework/IJSVG/IJSVG.xcodeproj/xcuserdata/curtishard.xcuserdatad/xcschemes/xcschememanagement.plist

@@ -15,7 +15,7 @@
 		<key>594CF46E238FF38E009B251B</key>
 		<dict>
 			<key>primary</key>
-			<true/>
+			<true />
 		</dict>
 	</dict>
 </dict>

Framework/IJSVG/IJSVG/Info.plist

@@ -19,6 +19,6 @@
 	<key>CFBundleVersion</key>
 	<string>$(CURRENT_PROJECT_VERSION)</string>
 	<key>NSHumanReadableCopyright</key>
-	<string>Copyright © 2019 Curtis Hard. All rights reserved.</string>
+	<string>Copyright © 2020 Curtis Hard. All rights reserved.</string>
 </dict>
 </plist>

Framework/IJSVG/IJSVG/Source/Additions/IJSVGBezierPathAdditions.h

@@ -1,19 +0,0 @@
-//
-//  IJSVGBezierPathAdditions.h
-//  IconJar
-//
-//  Created by Curtis Hard on 30/08/2014.
-//  Copyright (c) 2014 Curtis Hard. All rights reserved.
-//
-
-#import <AppKit/AppKit.h>
-#import <Foundation/Foundation.h>
-
-@interface NSBezierPath (IJSVGAdditions)
-
-- (void)addQuadCurveToPoint:(NSPoint)aPoint
-               controlPoint:(NSPoint)cp;
-
-- (CGPathRef)newCGPathRef:(BOOL)autoClose;
-
-@end

Framework/IJSVG/IJSVG/Source/Additions/IJSVGBezierPathAdditions.m

@@ -1,87 +0,0 @@
-//
-//  IJSVGBezierPathAdditions.m
-//  IconJar
-//
-//  Created by Curtis Hard on 30/08/2014.
-//  Copyright (c) 2014 Curtis Hard. All rights reserved.
-//
-
-#import "IJSVGBezierPathAdditions.h"
-
-@implementation NSBezierPath (IJSVGAdditions)
-
-- (void)addQuadCurveToPoint:(CGPoint)QP2
-               controlPoint:(CGPoint)QP1
-{
-    CGPoint QP0 = [self currentPoint];
-    CGPoint CP3 = QP2;
-    CGPoint CP1 = CGPointMake(QP0.x + ((2.0 / 3.0) * (QP1.x - QP0.x)), QP0.y + ((2.0 / 3.0) * (QP1.y - QP0.y)));
-    CGPoint CP2 = CGPointMake(QP2.x + (2.0 / 3.0) * (QP1.x - QP2.x), QP2.y + (2.0 / 3.0) * (QP1.y - QP2.y));
-
-    [self curveToPoint:CP3
-         controlPoint1:CP1
-         controlPoint2:CP2];
-}
-
-- (CGPathRef)newCGPathRef:(BOOL)autoClose
-{
-    NSInteger i = 0;
-    NSInteger numElements = self.elementCount;
-    NSBezierPath* bezPath = self;
-
-    // nothing to return
-    if (numElements == 0) {
-        return NULL;
-    }
-
-    CGMutablePathRef aPath = CGPathCreateMutable();
-
-    NSPoint points[3];
-    BOOL didClosePath = YES;
-
-    for (i = 0; i < numElements; i++) {
-        switch ([bezPath elementAtIndex:i associatedPoints:points]) {
-
-        // move
-        case NSMoveToBezierPathElement: {
-            CGPathMoveToPoint(aPath, NULL, points[0].x, points[0].y);
-            break;
-        }
-
-        // line
-        case NSLineToBezierPathElement: {
-            CGPathAddLineToPoint(aPath, NULL, points[0].x, points[0].y);
-            didClosePath = NO;
-            break;
-        }
-
-        // curve
-        case NSCurveToBezierPathElement: {
-            CGPathAddCurveToPoint(aPath, NULL, points[0].x, points[0].y,
-                points[1].x, points[1].y,
-                points[2].x, points[2].y);
-            didClosePath = NO;
-            break;
-        }
-
-        // close
-        case NSClosePathBezierPathElement: {
-            CGPathCloseSubpath(aPath);
-            didClosePath = YES;
-            break;
-        }
-        }
-    }
-
-    if (!didClosePath && autoClose) {
-        CGPathCloseSubpath(aPath);
-    }
-
-    // create immutable and release
-    CGPathRef pathToReturn = CGPathCreateCopy(aPath);
-    CGPathRelease(aPath);
-
-    return pathToReturn;
-}
-
-@end

Framework/IJSVG/IJSVG/Source/Additions/IJSVGStringAdditions.h

@@ -14,5 +14,6 @@
 - (BOOL)ijsvg_isNumeric;
 - (BOOL)ijsvg_containsAlpha;
 - (NSArray*)ijsvg_componentsSplitByWhiteSpace;
+- (BOOL)ijsvg_isHexString;
 
 @end

Framework/IJSVG/IJSVG/Source/Additions/IJSVGStringAdditions.m

@@ -7,51 +7,38 @@
 //
 
 #import "IJSVGStringAdditions.h"
+#import "IJSVGUtils.h"
 
 @implementation NSString (IJSVGAdditions)
 
 - (NSArray<NSString*>*)ijsvg_componentsSeparatedByChars:(const char*)aChar
 {
-    NSMutableArray* comp = [[[NSMutableArray alloc] init] autorelease];
+    char* chars = (char*)self.UTF8String;
-    NSInteger length = self.length;
+    if(chars == NULL || strlen(chars) == 0) {
-    unichar* chars = (unichar*)calloc(sizeof(unichar), self.length);
+        return @[];
-
-    NSInteger ind = 0;
-    BOOL startedString = NO;
-    const char* buffer = self.UTF8String;
-
-    for (NSInteger i = 0; i < length; i++) {
-        unichar theChar = buffer[i];
-
-        // start the buffer
-        BOOL isEqualToChar = strchr(aChar, theChar) != NULL;
-        if (isEqualToChar == NO) {
-            startedString = YES;
-            chars[ind++] = theChar;
-        }
-
-        // has started and char is the search char, or its at end
-        if ((startedString == YES && isEqualToChar) || (i == (length - 1) && startedString == YES)) {
-            startedString = NO;
-
-            // append the comp
-            [comp addObject:[NSString stringWithCharacters:chars length:ind]];
-
-            // restart and realloc the memory
-            ind = 0;
-            chars = memset(chars, '\0', sizeof(unichar) * ind);
-        }
     }
-    free(chars);
+    NSMutableArray<NSString*>* strings = nil;
-    return comp;
+    strings = [[[NSMutableArray alloc] init] autorelease];
+    char* copy = strdup(chars);
+    char* spt = NULL;
+    char* ptr = strtok_r(copy, aChar, &spt);
+    while(ptr != NULL) {
+        NSString* possibleString = nil;
+        if((possibleString = [NSString stringWithUTF8String:ptr]) != nil) {
+            [strings addObject:possibleString];
+        }
+        ptr = strtok_r(NULL, aChar, &spt);
+    }
+    (void)free(copy), copy = NULL;
+    return strings;
 }
 
 - (BOOL)ijsvg_containsAlpha
 {
     const char* buffer = self.UTF8String;
-    unsigned long length = strlen(buffer);
+    char currentChar;
-    for (int i = 0; i < length; i++) {
+    while((currentChar = *buffer++) ) {
-        if (isalpha(buffer[i])) {
+        if (isalpha(currentChar)) {
             return YES;
         }
     }
@@ -61,9 +48,9 @@
 - (BOOL)ijsvg_isNumeric
 {
     const char* buffer = self.UTF8String;
-    unsigned long length = strlen(buffer);
+    char currentChar;
-    for (int i = 0; i < length; i++) {
+    while((currentChar = *buffer++) ) {
-        if (!isnumber(buffer[i])) {
+        if (!isnumber(currentChar)) {
             return NO;
         }
     }
@@ -75,4 +62,10 @@
     return [self ijsvg_componentsSeparatedByChars:"\t\n\r "];
 }
 
+- (BOOL)ijsvg_isHexString
+{
+    const char* chars = self.UTF8String;
+    return IJSVGCharBufferIsHEX((char*)chars);
+}
+
 @end

Framework/IJSVG/IJSVG/Source/Additions/NSImage+IJSVGAdditions.h

@@ -0,0 +1,18 @@
+//
+//  NSImage+IJSVGAdditions.h
+//  IJSVG
+//
+//  Created by Curtis Hard on 07/06/2020.
+//  Copyright © 2020 Curtis Hard. All rights reserved.
+//
+
+#import <AppKit/AppKit.h>
+#import <Cocoa/Cocoa.h>
+
+IJSVG* IJSVGGetFromNSImage(NSImage* image);
+
+@interface NSImage (IJSVGAdditions)
+
++ (NSImage*)SVGImageNamed:(NSString*)imageName;
+
+@end

Framework/IJSVG/IJSVG/Source/Additions/NSImage+IJSVGAdditions.m

@@ -0,0 +1,53 @@
+//
+//  NSImage+IJSVGAdditions.m
+//  IJSVG
+//
+//  Created by Curtis Hard on 07/06/2020.
+//  Copyright © 2020 Curtis Hard. All rights reserved.
+//
+
+#import "IJSVGImageRep.h"
+#import "NSImage+IJSVGAdditions.h"
+
+IJSVG* IJSVGGetFromNSImage(NSImage* image)
+{
+    for (NSImageRep* rep in image.representations) {
+        if ([rep isKindOfClass:IJSVGImageRep.class]) {
+            return ((IJSVGImageRep*)rep).SVG;
+        }
+    }
+    return nil;
+}
+
+@implementation NSImage (IJSVGAdditions)
+
++ (NSImage*)SVGImageNamed:(NSString*)imageName
+{
+    // find the image
+    NSBundle* bundle = NSBundle.mainBundle;
+    NSString* str = nil;
+    NSString* ext = imageName.pathExtension;
+    if (ext == nil || ext.length == 0) {
+        ext = @"svg";
+    }
+
+    if ((str = [bundle pathForResource:imageName.stringByDeletingPathExtension
+                                ofType:ext])
+        != nil) {
+
+        // work out if we can get the data
+        NSData* data = [[[NSData alloc] initWithContentsOfFile:str] autorelease];
+        if (data == nil) {
+            return nil;
+        }
+
+        // grab the image rep
+        IJSVGImageRep* rep = [[[IJSVGImageRep alloc] initWithData:data] autorelease];
+        NSImage* image = [[[NSImage alloc] init] autorelease];
+        [image addRepresentation:rep];
+        return image;
+    }
+    return nil;
+}
+
+@end

Framework/IJSVG/IJSVG/Source/Colors/IJSVGColor.h

@@ -167,6 +167,8 @@ typedef NS_ENUM(NSInteger, IJSVGPredefinedColor) {
     IJSVGColorYellowgreen
 };
 
+extern NSString* const IJSVGColorCurrentColorName;
+
 @interface IJSVGColor : NSObject
 
 CGFloat* IJSVGColorCSSHSLToHSB(CGFloat hue, CGFloat saturation, CGFloat lightness);

Framework/IJSVG/IJSVG/Source/Colors/IJSVGColor.m

@@ -8,11 +8,16 @@
 
 #import "IJSVGColor.h"
 #import "IJSVGUtils.h"
+#import "IJSVGStringAdditions.h"
+#import "IJSVGParsing.h"
+
+NSString* const IJSVGColorCurrentColorName = @"currentColor";
 
 @implementation IJSVGColor
 
 static NSDictionary* _colorTree = nil;
 
+
 CGFloat* IJSVGColorCSSHSLToHSB(CGFloat hue, CGFloat saturation, CGFloat lightness)
 {
     hue *= (1.f / 360.f);
@@ -241,37 +246,51 @@ CGFloat* IJSVGColorCSSHSLToHSB(CGFloat hue, CGFloat saturation, CGFloat lightnes
 
 + (NSColor*)colorFromString:(NSString*)string
 {
-    NSCharacterSet* set = NSCharacterSet.whitespaceAndNewlineCharacterSet;
+    // swap over to C for performance
-    string = [string stringByTrimmingCharactersInSet:set];
+    if(string == nil) {
-
-    if ([string length] < 3) {
         return nil;
     }
-
+    
-    NSColor* color = nil;
+    const char* oString = string.UTF8String;
-    string = [string lowercaseString];
+    if(strlen(oString) == 0) {
-    if ([self.class isHex:string] == NO) {
+        return nil;
-        color = [self.class colorFromPredefinedColorName:string];
-        if (color != nil) {
-            return color;
-        }
     }
-
+    
-    // is simply a clear color, dont fill
+    char* str = IJSVGTimmedCharBufferCreate(oString);
-    if ([string.lowercaseString isEqualToString:@"none"] ||
+    if (IJSVGCharBufferIsHEX(str) == YES) {
-        [string.lowercaseString isEqualToString:@"transparent"]) {
+        (void)free(str), str = NULL;
-        return [self computeColorSpace:NSColor.clearColor];
+        return [self.class colorFromHEXString:string];
     }
 
     // is it RGB?
-    if ([string hasPrefix:@"rgb"] == YES) {
+    if (IJSVGCharBufferHasPrefix(str, "rgb") == YES) {
-        NSRange range = [IJSVGUtils rangeOfParentheses:string];
+        NSUInteger count = 0;
-        NSString* rgbString = [string substringWithRange:range];
+        IJSVGParsingStringMethod** methods = NULL;
-        NSArray* parts = [rgbString ijsvg_componentsSeparatedByChars:","];
+        methods = IJSVGParsingMethodParseString(str, &count);
+        IJSVGParsingStringMethod* method = methods[0];
+        
+        // memory clean for the string
+        (void)free(str), str = NULL;
+        
+        // nothing to return, just mem clean and get out of here
+        if(count == 0 || methods == NULL) {
+            if(methods != NULL) {
+                IJSVGParsingStringMethodsRelease(methods, count);
+                methods = NULL;
+            }
+            return nil;
+        }
+        
+        // parse the parameters
+        NSString* parameters = [NSString stringWithUTF8String:method->parameters];
+        NSArray* parts = [parameters ijsvg_componentsSeparatedByChars:","];
         NSString* alpha = @"100%";
         if (parts.count == 4) {
             alpha = parts[3];
         }
+        
+        IJSVGParsingStringMethodsRelease(methods, count);
+        methods = NULL;
         return [self colorFromRString:parts[0]
                               gString:parts[1]
                               bString:parts[2]
@@ -279,10 +298,10 @@ CGFloat* IJSVGColorCSSHSLToHSB(CGFloat hue, CGFloat saturation, CGFloat lightnes
     }
 
     // is it HSL?
-    if ([string hasPrefix:@"hsl"]) {
+    if (IJSVGCharBufferHasPrefix(str, "hsl")) {
         NSInteger count = 0;
-        CGFloat* params = [IJSVGUtils commandParameters:string
+        CGFloat* params = [IJSVGUtils scanFloatsFromCString:str
-                                                  count:&count];
+                                                       size:&count];
         CGFloat alpha = 1;
         if (count == 4) {
             alpha = params[3];
@@ -290,21 +309,30 @@ CGFloat* IJSVGColorCSSHSLToHSB(CGFloat hue, CGFloat saturation, CGFloat lightnes
 
         // convert HSL to HSB
         CGFloat* hsb = IJSVGColorCSSHSLToHSB(params[0], params[1], params[2]);
-        color = [NSColor colorWithDeviceHue:hsb[0]
+        NSColor* color = [NSColor colorWithDeviceHue:hsb[0]
-                                 saturation:hsb[1]
+                                          saturation:hsb[1]
-                                 brightness:hsb[2]
+                                          brightness:hsb[2]
-                                      alpha:alpha];
+                                               alpha:alpha];
 
         color = [self computeColorSpace:color];
 
         // memory clean!
-        free(hsb);
+        (void)free(str), str = NULL;
-        free(params);
+        (void)free(hsb), hsb = NULL;
+        (void)free(params), params = NULL;
         return color;
     }
-
+    
-    color = [self.class colorFromHEXString:string];
+    // is simply a clear color, dont fill
-    return color;
+    if (strcmp(str, "none") == 0 ||
+        strcmp(str, "transparent") == 0) {
+        (void)free(str), str = NULL;
+        return [self computeColorSpace:NSColor.clearColor];
+    }
+    
+    // could return nil
+    (void)free(str), str = NULL;
+    return [self.class colorFromPredefinedColorName:string];
 }
 
 + (NSColor*)colorFromPredefinedColorName:(NSString*)name
@@ -707,14 +735,7 @@ CGFloat* IJSVGColorCSSHSLToHSB(CGFloat hue, CGFloat saturation, CGFloat lightnes
 
 + (BOOL)isHex:(NSString*)string
 {
-    const char* validList = "0123456789ABCDEFabcdef#";
+    return string.ijsvg_isHexString;
-    for (NSInteger i = 0; i < string.length; i++) {
-        char c = [string characterAtIndex:i];
-        if (strchr(validList, c) == NULL) {
-            return NO;
-        }
-    }
-    return YES;
 }
 
 + (unsigned long)lengthOfHEXInteger:(NSUInteger)hex
@@ -760,28 +781,38 @@ CGFloat* IJSVGColorCSSHSLToHSB(CGFloat hue, CGFloat saturation, CGFloat lightnes
         containsAlphaComponent:(BOOL*)containsAlphaComponent
 {
     // absolutely no string
-    if (string == nil || string.length == 0 || ![self.class isHex:string]) {
+    if(string == nil) {
+        return nil;
+    }
+    
+    char* str = (char*)string.UTF8String;
+    size_t length = strlen(str);
+    if (length == 0 || IJSVGCharBufferIsHEX(str) == NO) {
         return nil;
     }
 
-    if ([string hasPrefix:@"#"] == YES) {
+    // remove the hash from the front of the string
-        string = [string substringFromIndex:1];
+    if(str[0] == '#') {
+        length--;
+        str++;
     }
 
-    // whats the length?
+    unsigned long hex;
-    NSUInteger length = string.length;
+    // we need to work out if its shorthand
+    // if it is, the length needs to be length*2
     if (length == 3 || length == 4) {
-        // shorthand...
+        char* chars = NULL;
-        NSMutableString* str = [[[NSMutableString alloc] init] autorelease];
+        chars = (char*)calloc(sizeof(char),length*2+1);
-        for (NSInteger i = 0; i < length; i++) {
+        for(int i = 0; i < length; i++) {
-            NSString* sub = [string substringWithRange:NSMakeRange(i, 1)];
+            chars[i*2] = chars[i*2+1] = str[i];
-            [str appendFormat:@"%@%@", sub, sub];
         }
-        string = str;
+        hex = strtoul(chars, NULL, 16);
+        (void)free(chars), chars = NULL;
+    } else {
+        hex = strtoul(str, NULL, 16);
     }
-
+    
     // now convert rest to hex
-    unsigned long hex = [self HEXFromArbitraryHexString:string];
     if (containsAlphaComponent != nil) {
         *containsAlphaComponent = [self HEXContainsAlphaComponent:hex];
     }

Framework/IJSVG/IJSVG/Source/Colors/IJSVGColorList.h

@@ -6,16 +6,19 @@
 //  Copyright © 2019 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGColor.h"
+#import <IJSVG/IJSVGColor.h>
+#import <IJSVG/IJSVGColorType.h>
 #import <Foundation/Foundation.h>
 
 @interface IJSVGColorList : NSObject <NSCopying> {
 
 @private
     NSMutableDictionary<NSColor*, NSColor*>* _replacementColorTree;
-    NSMutableSet<NSColor*>* _colors;
+    NSMutableSet<IJSVGColorType*>* _colors;
 }
 
+@property (nonatomic, assign, readonly) NSUInteger count;
+
 - (NSColor*)proposedColorForColor:(NSColor*)color;
 - (void)removeAllReplacementColors;
 - (void)removeReplacementColor:(NSColor*)color;
@@ -25,7 +28,8 @@
          clearExistingColors:(BOOL)clearExistingColors;
 
 - (void)addColorsFromList:(IJSVGColorList*)sheet;
-- (NSSet<NSColor*>*)colors;
+- (NSSet<IJSVGColorType*>*)colors;
-- (void)addColor:(NSColor*)color;
+- (void)addColor:(IJSVGColorType*)color;
+- (NSDictionary<NSColor*, NSColor*>*)replacementColors;
 
 @end

Framework/IJSVG/IJSVG/Source/Colors/IJSVGColorList.m

@@ -89,24 +89,48 @@
     }
 }
 
-- (NSSet<NSColor*>*)colors
+- (NSSet<IJSVGColorType*>*)colors
 {
     return [NSSet setWithSet:_colors];
 }
 
 - (void)addColorsFromList:(IJSVGColorList*)sheet
 {
-    [_colors addObjectsFromArray:sheet.colors.allObjects];
+    for(IJSVGColorType* color in sheet.colors) {
+        [self addColor:color];
+    }
 }
 
-- (void)addColor:(NSColor*)color
+- (void)addColor:(IJSVGColorType*)color
 {
-    [_colors addObject:[IJSVGColor computeColorSpace:color]];
+    // we just need to update its bit mask
+    if([_colors containsObject:color] == YES) {
+        void (^handler)(IJSVGColorType * _Nonnull obj, BOOL * _Nonnull stop) =
+        ^(IJSVGColorType * _Nonnull obj, BOOL * _Nonnull stop) {
+            if([obj isEqual:color] == YES) {
+                obj.flags |= color.flags;
+                *stop = YES;
+            }
+        };
+        [_colors enumerateObjectsUsingBlock:handler];
+        return;
+    }
+    [_colors addObject:color];
 }
 
-- (void)removeColor:(NSColor*)color
+- (NSDictionary<NSColor*,NSColor*>*)replacementColors
 {
-    [_colors removeObject:[IJSVGColor computeColorSpace:color]];
+    return _replacementColorTree;
+}
+
+- (void)removeColor:(IJSVGColorType*)color
+{
+    [_colors removeObject:color];
+}
+
+- (NSUInteger)count
+{
+    return _colors.count;
 }
 
 @end

Framework/IJSVG/IJSVG/Source/Colors/IJSVGColorType.h

@@ -0,0 +1,30 @@
+//
+//  IJSVGColorType.h
+//  IJSVG
+//
+//  Created by Curtis Hard on 20/04/2021.
+//  Copyright © 2021 Curtis Hard. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+#import <AppKit/AppKit.h>
+
+typedef NS_OPTIONS(NSInteger, IJSVGColorTypeFlags) {
+    IJSVGColorTypeNone = 0,
+    IJSVGColorTypeFlagUnknown = 1 << 0,
+    IJSVGColorTypeFlagFill = 1 << 1,
+    IJSVGColorTypeFlagStroke = 1 << 2,
+    IJSVGColorTypeFlagStop = 1 << 3
+};
+
+@interface IJSVGColorType : NSObject {
+    
+}
+
+@property (nonatomic, retain) NSColor* color;
+@property (nonatomic, assign) IJSVGColorTypeFlags flags;
+
++ (IJSVGColorType*)typeWithColor:(NSColor*)color
+                            flags:(IJSVGColorTypeFlags)mask;
+
+@end

Framework/IJSVG/IJSVG/Source/Colors/IJSVGColorType.m

@@ -0,0 +1,41 @@
+//
+//  IJSVGColorType.m
+//  IJSVG
+//
+//  Created by Curtis Hard on 20/04/2021.
+//  Copyright © 2021 Curtis Hard. All rights reserved.
+//
+
+#import "IJSVGColorType.h"
+
+@implementation IJSVGColorType
+
+- (void)dealloc
+{
+    (void)[_color release], _color = nil;
+    [super dealloc];
+}
+
++ (IJSVGColorType*)typeWithColor:(NSColor*)color
+                           flags:(IJSVGColorTypeFlags)mask
+{
+    IJSVGColorType* type = [[[self alloc] init] autorelease];
+    type.color = color;
+    type.flags = mask;
+    return type;
+}
+
+- (BOOL)isEqual:(id)object
+{
+    if([object isKindOfClass:IJSVGColorType.class] == NO) {
+        return NO;
+    }
+    return [self.color isEqual:((IJSVGColorType*)object).color];
+}
+
+- (NSUInteger)hash
+{
+    return self.color.hash;
+}
+
+@end

Framework/IJSVG/IJSVG/Source/Commands/IJSVGCommand.h

@@ -6,8 +6,8 @@
 //  Copyright (c) 2014 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGCommandParser.h"
+#import <IJSVG/IJSVGCommandParser.h>
-#import "IJSVGPath.h"
+#import <IJSVG/IJSVGPath.h>
 #import <Foundation/Foundation.h>
 
 static const NSInteger IJSVGCustomVariableParameterCount = NSNotFound;
@@ -18,16 +18,8 @@ typedef NS_ENUM(NSInteger, IJSVGCommandType) {
 };
 
 @interface IJSVGCommand : NSObject {
-    NSString* commandString;
+@private
-    char command;
-    CGFloat* parameters;
-    NSInteger parameterCount;
-    NSArray<IJSVGCommand*>* subCommands;
-    NSInteger requiredParameters;
-    IJSVGCommandType type;
-    IJSVGCommand* previousCommand;
     NSInteger _currentIndex;
-    BOOL isSubCommand;
 }
 
 @property (nonatomic, copy) NSString* commandString;
@@ -55,8 +47,8 @@ typedef NS_ENUM(NSInteger, IJSVGCommandType) {
           intoArray:(NSMutableArray<IJSVGCommand*>*)commands
       parentCommand:(IJSVGCommand*)parentCommand;
 
-- (id)initWithCommandString:(NSString*)str
+- (id)initWithCommandStringBuffer:(const char*)str
-                 dataStream:(IJSVGPathDataStream*)dataStream;
+                       dataStream:(IJSVGPathDataStream*)dataStream;
 - (IJSVGCommand*)subcommandWithParameters:(CGFloat*)subParams
                                paramCount:(NSInteger)paramCount
                           previousCommand:(IJSVGCommand*)command;

Framework/IJSVG/IJSVG/Source/Commands/IJSVGCommand.m

@@ -22,15 +22,6 @@
 
 @implementation IJSVGCommand
 
-@synthesize commandString;
-@synthesize command;
-@synthesize parameterCount;
-@synthesize parameters;
-@synthesize subCommands;
-@synthesize type;
-@synthesize previousCommand;
-@synthesize isSubCommand;
-
 + (BOOL)requiresCustomParameterParsing
 {
     return NO;
@@ -103,26 +94,26 @@
 
 - (void)dealloc
 {
-    (void)([commandString release]), commandString = nil;
+    (void)([_commandString release]), _commandString = nil;
-    (void)([subCommands release]), subCommands = nil;
+    (void)([_subCommands release]), _subCommands = nil;
-    if (parameters) {
+    if (_parameters) {
-        (void)(free(parameters)), parameters = nil;
+        (void)(free(_parameters)), _parameters = nil;
     }
     [super dealloc];
 }
 
-- (id)initWithCommandString:(NSString*)str
+- (id)initWithCommandStringBuffer:(const char*)str
-                 dataStream:(IJSVGPathDataStream*)dataStream
+                       dataStream:(IJSVGPathDataStream*)dataStream
 {
     if ((self = [super init]) != nil) {
         // work out the basics
         _currentIndex = 0;
-        command = [str characterAtIndex:0];
+        _command = str[0];
-        type = [IJSVGUtils typeForCommandChar:command];
+        _type = [IJSVGUtils typeForCommandChar:_command];
         NSInteger sets = 0;
         NSInteger paramCount = [self.class requiredParameterCount];
         IJSVGPathDataSequence* sequence = [self.class pathDataSequence];
-        parameters = IJSVGParsePathDataStreamSequence(str.UTF8String, str.length,
+        _parameters = IJSVGParsePathDataStreamSequence(str, strlen(str),
             dataStream, sequence, [self.class requiredParameterCount], &sets);
 
         if (sets <= 1) {
@@ -130,7 +121,7 @@
             IJSVGCommand* command = [self subcommandWithParameters:subParams
                                                         paramCount:paramCount
                                                    previousCommand:nil];
-            subCommands = @[ command ].retain;
+            _subCommands = @[ command ].retain;
         } else {
             NSMutableArray<IJSVGCommand*>* subCommandArray = nil;
             subCommandArray = [[NSMutableArray alloc] initWithCapacity:sets].autorelease;
@@ -154,7 +145,7 @@
             }
 
             // store the retained value
-            subCommands = subCommandArray.copy;
+            _subCommands = subCommandArray.copy;
         }
     }
     return self;
@@ -188,15 +179,15 @@
 
 - (CGFloat)readFloat
 {
-    CGFloat f = parameters[_currentIndex];
+    CGFloat f = _parameters[_currentIndex];
     _currentIndex++;
     return f;
 }
 
 - (NSPoint)readPoint
 {
-    CGFloat x = parameters[_currentIndex];
+    CGFloat x = _parameters[_currentIndex];
-    CGFloat y = parameters[_currentIndex + 1];
+    CGFloat y = _parameters[_currentIndex + 1];
     _currentIndex += 2;
     return NSMakePoint(x, y);
 }
@@ -211,4 +202,16 @@
     _currentIndex = 0;
 }
 
+- (NSString *)description
+{
+    NSMutableString* str = [[[NSMutableString alloc] init] autorelease];
+    [str appendFormat:@"%c ",_command];
+    NSMutableArray* args = [[[NSMutableArray alloc] initWithCapacity:_parameterCount] autorelease];
+    for(int i = 0; i < _parameterCount; i++) {
+        [args addObject:[NSString stringWithFormat:@"%f",_parameters[i]]];
+    }
+    [str appendString:[args componentsJoinedByString:@", "]];
+    return str;
+}
+
 @end

Framework/IJSVG/IJSVG/Source/Commands/IJSVGCommandCurve.m

@@ -23,14 +23,16 @@
                  path:(IJSVGPath*)path
 {
     if (type == kIJSVGCommandTypeAbsolute) {
-        [path.path curveToPoint:NSMakePoint(params[4], params[5])
+        CGPathAddCurveToPoint(path.path, NULL, params[0], params[1],
-                  controlPoint1:NSMakePoint(params[0], params[1])
+                              params[2], params[3],
-                  controlPoint2:NSMakePoint(params[2], params[3])];
+                              params[4], params[5]);
         return;
     }
-    [path.path relativeCurveToPoint:NSMakePoint(params[4], params[5])
+    CGPoint currentPoint = path.currentPoint;
-                      controlPoint1:NSMakePoint(params[0], params[1])
+    CGPathAddCurveToPoint(path.path, NULL,
-                      controlPoint2:NSMakePoint(params[2], params[3])];
+                          currentPoint.x + params[0], currentPoint.y + params[1],
+                          currentPoint.x + params[2], currentPoint.y + params[3],
+                          currentPoint.x + params[4], currentPoint.y + params[5]);
 }
 
 @end

Framework/IJSVG/IJSVG/Source/Commands/IJSVGCommandEllipticalArc.m

@@ -20,7 +20,8 @@ static IJSVGPathDataSequence* _sequence;
 
 + (IJSVGPathDataSequence*)pathDataSequence
 {
-    if(_sequence == NULL) {
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
         _sequence = (IJSVGPathDataSequence*)malloc(sizeof(IJSVGPathDataSequence) * 7);
         _sequence[0] = kIJSVGPathDataSequenceTypeFloat;
         _sequence[1] = kIJSVGPathDataSequenceTypeFloat;
@@ -29,10 +30,11 @@ static IJSVGPathDataSequence* _sequence;
         _sequence[4] = kIJSVGPathDataSequenceTypeFlag;
         _sequence[5] = kIJSVGPathDataSequenceTypeFloat;
         _sequence[6] = kIJSVGPathDataSequenceTypeFloat;
-    }
+    });
     return _sequence;
 }
 
+// modified from https://github.com/SVGKit/SVGKit/blob/880c94a5b77b6f22beb491a7a7e02ace220c32af/Source/Parsers/SVGKPointsAndPathsParser.m
 + (void)runWithParams:(CGFloat*)params
            paramCount:(NSInteger)count
               command:(IJSVGCommand*)currentCommand
@@ -42,83 +44,96 @@ static IJSVGPathDataSequence* _sequence;
 {
     CGPoint radii = CGPointZero;
     CGPoint arcEndPoint = CGPointZero;
-    CGPoint arcStartPoint = path.currentPoint;
+    CGPoint pathCurrentPoint = path.currentPoint;
-    CGFloat xAxisRotation = 0;
+    CGFloat xAxisRotation = 0.f;
-    BOOL largeArcFlag = 0;
+    BOOL largeArcFlag = NO;
-    BOOL sweepFlag = 0;
+    BOOL sweepFlag = NO;
-
+    
     radii = [currentCommand readPoint];
     xAxisRotation = [currentCommand readFloat];
     largeArcFlag = [currentCommand readBOOL];
     sweepFlag = [currentCommand readBOOL];
     arcEndPoint = [currentCommand readPoint];
+    
+    CGFloat rx = fabs(radii.x);
+    CGFloat ry = fabs(radii.y);
+    
+    xAxisRotation *= M_PI / 180.f;
+    xAxisRotation = fmod(xAxisRotation, 2.f * M_PI);
 
     if (type == kIJSVGCommandTypeRelative) {
-        arcEndPoint.x += path.currentPoint.x;
+        arcEndPoint.x += pathCurrentPoint.x;
-        arcEndPoint.y += path.currentPoint.y;
+        arcEndPoint.y += pathCurrentPoint.y;
     }
-
+    
-    xAxisRotation *= M_PI / 180.f;
+    CGFloat x1 = pathCurrentPoint.x;
-    CGPoint currentPoint = CGPointMake(cos(xAxisRotation) * (arcStartPoint.x - arcEndPoint.x) / 2.0 + sin(xAxisRotation) * (arcStartPoint.y - arcEndPoint.y) / 2.0, -sin(xAxisRotation) * (arcStartPoint.x - arcEndPoint.x) / 2.0 + cos(xAxisRotation) * (arcStartPoint.y - arcEndPoint.y) / 2.0);
+    CGFloat y1 = pathCurrentPoint.y;
-
+    
-    CGFloat radiiAdjustment = pow(currentPoint.x, 2) / pow(radii.x, 2) + pow(currentPoint.y, 2) / pow(radii.y, 2);
+    CGFloat x2 = arcEndPoint.x;
-    radii.x *= (radiiAdjustment > 1) ? sqrt(radiiAdjustment) : 1;
+    CGFloat y2 = arcEndPoint.y;
-    radii.y *= (radiiAdjustment > 1) ? sqrt(radiiAdjustment) : 1;
+    
-
+    if (rx == 0.f || ry == 0.f) {
-    CGFloat sweep = (largeArcFlag == sweepFlag ? -1 : 1) * sqrt(((pow(radii.x, 2) * pow(radii.y, 2)) - (pow(radii.x, 2) * pow(currentPoint.y, 2)) - (pow(radii.y, 2) * pow(currentPoint.x, 2))) / (pow(radii.x, 2) * pow(currentPoint.y, 2) + pow(radii.y, 2) * pow(currentPoint.x, 2)));
+        CGPathAddLineToPoint(path.path, NULL, x2, y2);
-    sweep = (sweep != sweep) ? 0 : sweep;
-    CGPoint preCenterPoint = CGPointMake(sweep * radii.x * currentPoint.y / radii.y, sweep * -radii.y * currentPoint.x / radii.x);
-
-    CGPoint centerPoint = CGPointMake((arcStartPoint.x + arcEndPoint.x) / 2.0 + cos(xAxisRotation) * preCenterPoint.x - sin(xAxisRotation) * preCenterPoint.y, (arcStartPoint.y + arcEndPoint.y) / 2.0 + sin(xAxisRotation) * preCenterPoint.x + cos(xAxisRotation) * preCenterPoint.y);
-
-    CGFloat startAngle = angle(CGPointMake(1, 0), CGPointMake((currentPoint.x - preCenterPoint.x) / radii.x, (currentPoint.y - preCenterPoint.y) / radii.y));
-
-    CGPoint deltaU = CGPointMake((currentPoint.x - preCenterPoint.x) / radii.x,
-        (currentPoint.y - preCenterPoint.y) / radii.y);
-    CGPoint deltaV = CGPointMake((-currentPoint.x - preCenterPoint.x) / radii.x,
-        (-currentPoint.y - preCenterPoint.y) / radii.y);
-    CGFloat angleDelta = (deltaU.x * deltaV.y < deltaU.y * deltaV.x ? -1 : 1) * acos(ratio(deltaU, deltaV));
-
-    angleDelta = (ratio(deltaU, deltaV) <= -1) ? M_PI : (ratio(deltaU, deltaV) >= 1) ? 0 : angleDelta;
-
-    // check for actually numbers, if this is not valid
-    // kill it, blame WWDC 2017 SVG background for this...
-    if (isnan(startAngle) || isnan(angleDelta)) {
         return;
     }
+    
+    CGFloat cosPhi = cos(xAxisRotation);
+    CGFloat sinPhi = sin(xAxisRotation);
+    
+    CGFloat x1p = cosPhi * (x1 - x2) / 2.f + sinPhi * (y1 - y2) / 2.f;
+    CGFloat y1p = -sinPhi * (x1 - x2) / 2.f + cosPhi * (y1 - y2) / 2.f;
+    
+    CGFloat rx_2 = rx * rx;
+    CGFloat ry_2 = ry * ry;
+    CGFloat xp_2 = x1p * x1p;
+    CGFloat yp_2 = y1p * y1p;
 
-    CGFloat radius = MAX(radii.x, radii.y);
+    CGFloat delta = xp_2 / rx_2 + yp_2 / ry_2;
-    CGPoint scale = (radii.x > radii.y) ? CGPointMake(1, radii.y / radii.x) : CGPointMake(radii.x / radii.y, 1);
+    
+    if (delta > 1.f) {
+        rx *= sqrt(delta);
+        ry *= sqrt(delta);
+        rx_2 = rx * rx;
+        ry_2 = ry * ry;
+    }
+    
+    CGFloat sign = (largeArcFlag == sweepFlag) ? -1.f : 1.f;
+    CGFloat numerator = MAX(0.f, rx_2 * ry_2 - rx_2 * yp_2 - ry_2 * xp_2);
+    CGFloat denom = rx_2 * yp_2 + ry_2 * xp_2;
+    CGFloat lhs = denom == 0.f ? 0.f : sign * sqrt(numerator / denom);
+    
+    CGFloat cxp = lhs * (rx * y1p) / ry;
+    CGFloat cyp = lhs * -((ry * x1p) / rx);
+    
+    CGFloat cx = cosPhi * cxp + -sinPhi * cyp + (x1 + x2) / 2.f;
+    CGFloat cy = cxp * sinPhi + cyp * cosPhi + (y1 + y2) / 2.f;
 
-    NSAffineTransform* trans = NSAffineTransform.transform;
+    CGAffineTransform transform = CGAffineTransformMakeScale(1.f / rx, 1.f / ry);
-    [trans translateXBy:-centerPoint.x yBy:-centerPoint.y];
+    transform = CGAffineTransformRotate(transform, -xAxisRotation);
-    [path.path transformUsingAffineTransform:trans];
+    transform = CGAffineTransformTranslate(transform, -cx, -cy);
+    
+    CGPoint arcPt1 = CGPointApplyAffineTransform(CGPointMake(x1, y1), transform);
+    CGPoint arcPt2 = CGPointApplyAffineTransform(CGPointMake(x2, y2), transform);
+        
+    CGFloat startAngle = atan2(arcPt1.y, arcPt1.x);
+    CGFloat endAngle = atan2(arcPt2.y, arcPt2.x);
+    
+    CGFloat angleDelta = endAngle - startAngle;;
+    
+    if (sweepFlag == YES) {
+        if (angleDelta < 0.f) {
+            angleDelta += 2.f * M_PI;
+        }
+    } else if (angleDelta > 0.f) {
+        angleDelta = angleDelta - 2.f * M_PI;
+    }
+    
+    transform = CGAffineTransformMakeTranslation(cx, cy);
+    transform = CGAffineTransformRotate(transform, xAxisRotation);
+    transform = CGAffineTransformScale(transform, rx, ry);
 
-    trans = NSAffineTransform.transform;
+    CGPathAddRelativeArc(path.path, &transform, 0.f, 0.f, 1.f,
-    [trans rotateByRadians:-xAxisRotation];
+                         startAngle, angleDelta);
-    [path.path transformUsingAffineTransform:trans];
-
-    trans = NSAffineTransform.transform;
-    [trans scaleXBy:(1 / scale.x) yBy:(1 / scale.y)];
-    [path.path transformUsingAffineTransform:trans];
-
-    [path.path appendBezierPathWithArcWithCenter:NSZeroPoint
-                                          radius:radius
-                                      startAngle:radians_to_degrees(startAngle)
-                                        endAngle:radians_to_degrees(startAngle + angleDelta)
-                                       clockwise:!sweepFlag];
-
-    trans = NSAffineTransform.transform;
-    [trans scaleXBy:scale.x yBy:scale.y];
-    [path.path transformUsingAffineTransform:trans];
-
-    trans = NSAffineTransform.transform;
-    [trans rotateByRadians:xAxisRotation];
-    [path.path transformUsingAffineTransform:trans];
-
-    trans = NSAffineTransform.transform;
-    [trans translateXBy:centerPoint.x yBy:centerPoint.y];
-    [path.path transformUsingAffineTransform:trans];
 }
 
 @end

Framework/IJSVG/IJSVG/Source/Commands/IJSVGCommandHorizontalLine.m

@@ -23,10 +23,12 @@
                  path:(IJSVGPath*)path
 {
     if (type == kIJSVGCommandTypeAbsolute) {
-        [path.path lineToPoint:NSMakePoint(params[0], path.currentPoint.y)];
+        CGPathAddLineToPoint(path.path, NULL, params[0], path.currentPoint.y);
         return;
     }
-    [path.path relativeLineToPoint:NSMakePoint(params[0], 0.f)];
+    CGPoint currentPoint = path.currentPoint;
+    CGPathAddLineToPoint(path.path, NULL, currentPoint.x + params[0],
+                         path.currentPoint.y);
 }
 
 @end

Framework/IJSVG/IJSVG/Source/Commands/IJSVGCommandLineTo.m

@@ -23,12 +23,12 @@
                  path:(IJSVGPath*)path
 {
     if (type == kIJSVGCommandTypeAbsolute) {
-        [path.path lineToPoint:NSMakePoint(params[0], params[1])];
+        CGPathAddLineToPoint(path.path, NULL, params[0], params[1]);
         return;
     }
-    NSPoint point = NSMakePoint(path.currentPoint.x + params[0],
+    CGPoint currentPoint = path.currentPoint;
-        path.currentPoint.y + params[1]);
+    CGPathAddLineToPoint(path.path, NULL, currentPoint.x + params[0],
-    [path.path lineToPoint:point];
+                         currentPoint.y + params[1]);
 }
 
 @end

Framework/IJSVG/IJSVG/Source/Commands/IJSVGCommandMove.m

@@ -35,17 +35,20 @@
         return;
     }
 
-    // actual move to command
+    // actual move to command - do a moveToPoint only
-    if (type == kIJSVGCommandTypeAbsolute) {
+    // if the type is absolute, or its possible the type is
-        [path.path moveToPoint:NSMakePoint(params[0], params[1])];
+    // relative but there is no previous command which means
+    // there is no current point. Asking for current point on an empty
+    // path will result in an exception being thrown
+    if (type == kIJSVGCommandTypeAbsolute || command == nil) {
+        CGPathMoveToPoint(path.path, NULL,
+                          params[0], params[1]);
         return;
     }
-    @try {
+    CGPoint currentPoint = path.currentPoint;
-        [path.path relativeMoveToPoint:NSMakePoint(params[0], params[1])];
+    CGPathMoveToPoint(path.path, NULL,
-    }
+                      currentPoint.x + params[0],
-    @catch (NSException* exception) {
+                      currentPoint.y + params[1]);
-        [path.path moveToPoint:NSMakePoint(params[0], params[1])];
-    }
 }
 
 @end

Framework/IJSVG/IJSVG/Source/Commands/IJSVGCommandQuadraticCurve.m

@@ -24,12 +24,14 @@
                  path:(IJSVGPath*)path
 {
     if (type == kIJSVGCommandTypeAbsolute) {
-        [path.path addQuadCurveToPoint:NSMakePoint(params[2], params[3])
+        CGPathAddQuadCurveToPoint(path.path, NULL, params[0], params[1],
-                          controlPoint:NSMakePoint(params[0], params[1])];
+                                  params[2], params[3]);
         return;
     }
-    [path.path addQuadCurveToPoint:NSMakePoint(path.currentPoint.x + params[2], path.currentPoint.y + params[3])
+    CGPoint currentPoint = path.currentPoint;
-                      controlPoint:NSMakePoint(path.currentPoint.x + params[0], path.currentPoint.y + params[1])];
+    CGPathAddQuadCurveToPoint(path.path, NULL,
+                              currentPoint.x + params[0], currentPoint.y + params[1],
+                              currentPoint.x + params[2], currentPoint.y + params[3]);
 }
 
 @end

Framework/IJSVG/IJSVG/Source/Commands/IJSVGCommandSmoothCurve.m

@@ -24,41 +24,41 @@
                  type:(IJSVGCommandType)type
                  path:(IJSVGPath*)path
 {
-    NSPoint firstControl = NSMakePoint(path.currentPoint.x, path.currentPoint.y);
+    CGPoint currentPoint = path.currentPoint;
+    CGPoint firstControl = CGPointMake(currentPoint.x, currentPoint.y);
     if (command != nil) {
         if (command.class == [IJSVGCommandCurve class] || command.class == self.class) {
             if (command.class == [IJSVGCommandCurve class]) {
                 if (command.type == kIJSVGCommandTypeAbsolute) {
-                    firstControl = NSMakePoint(-1 * command.parameters[2] + 2 * path.currentPoint.x,
+                    firstControl = CGPointMake(-1 * command.parameters[2] + 2 * currentPoint.x,
-                        -1 * command.parameters[3] + 2 * path.currentPoint.y);
+                        -1 * command.parameters[3] + 2 * currentPoint.y);
                 } else {
-                    NSPoint oldPoint = NSMakePoint(path.currentPoint.x - command.parameters[4],
+                    NSPoint oldPoint = CGPointMake(currentPoint.x - command.parameters[4],
-                        path.currentPoint.y - command.parameters[5]);
+                        currentPoint.y - command.parameters[5]);
-                    firstControl = NSMakePoint(-1 * (command.parameters[2] + oldPoint.x) + 2 * path.currentPoint.x,
+                    firstControl = CGPointMake(-1 * (command.parameters[2] + oldPoint.x) + 2 * currentPoint.x,
-                        -1 * (command.parameters[3] + oldPoint.y) + 2 * path.currentPoint.y);
+                        -1 * (command.parameters[3] + oldPoint.y) + 2 * currentPoint.y);
                 }
             } else {
                 if (command.type == kIJSVGCommandTypeAbsolute) {
-                    firstControl = NSMakePoint(-1 * command.parameters[0] + 2 * path.currentPoint.x,
+                    firstControl = CGPointMake(-1 * command.parameters[0] + 2 * currentPoint.x,
-                        -1 * command.parameters[1] + 2 * path.currentPoint.y);
+                        -1 * command.parameters[1] + 2 * currentPoint.y);
                 } else {
-                    NSPoint oldPoint = NSMakePoint(path.currentPoint.x - command.parameters[2],
+                    NSPoint oldPoint = CGPointMake(currentPoint.x - command.parameters[2],
-                        path.currentPoint.y - command.parameters[3]);
+                        currentPoint.y - command.parameters[3]);
-                    firstControl = NSMakePoint(-1 * (command.parameters[0] + oldPoint.x) + 2 * path.currentPoint.x,
+                    firstControl = CGPointMake(-1 * (command.parameters[0] + oldPoint.x) + 2 * currentPoint.x,
-                        -1 * (command.parameters[1] + oldPoint.y) + 2 * path.currentPoint.y);
+                        -1 * (command.parameters[1] + oldPoint.y) + 2 * currentPoint.y);
                 }
             }
         }
     }
     if (type == kIJSVGCommandTypeAbsolute) {
-        [path.path curveToPoint:NSMakePoint(params[2], params[3])
+        CGPathAddCurveToPoint(path.path, NULL, firstControl.x, firstControl.y,
-                  controlPoint1:NSMakePoint(firstControl.x, firstControl.y)
+                              params[0], params[1], params[2], params[3]);
-                  controlPoint2:NSMakePoint(params[0], params[1])];
         return;
     }
-    [path.path curveToPoint:NSMakePoint(path.currentPoint.x + params[2], path.currentPoint.y + params[3])
+    CGPathAddCurveToPoint(path.path, NULL, firstControl.x, firstControl.y,
-              controlPoint1:NSMakePoint(firstControl.x, firstControl.y)
+                          currentPoint.x + params[0], currentPoint.y + params[1],
-              controlPoint2:NSMakePoint(path.currentPoint.x + params[0], path.currentPoint.y + params[1])];
+                          currentPoint.x + params[2], currentPoint.y + params[3]);
 }
 
 @end

Framework/IJSVG/IJSVG/Source/Commands/IJSVGCommandSmoothQuadraticCurve.m

@@ -24,33 +24,34 @@
                  type:(IJSVGCommandType)type
                  path:(IJSVGPath*)path
 {
-    NSPoint commandPoint = NSMakePoint(path.currentPoint.x, path.currentPoint.y);
+    CGPoint currentPoint = path.currentPoint;
+    CGPoint commandPoint = CGPointMake(currentPoint.x, currentPoint.y);
     if (command != nil) {
         if (command.class == IJSVGCommandQuadraticCurve.class) {
             // quadratic curve
             if (command.type == kIJSVGCommandTypeAbsolute) {
-                commandPoint = NSMakePoint(-1 * command.parameters[0] + 2 * path.currentPoint.x,
+                commandPoint = NSMakePoint(-1 * command.parameters[0] + 2 * currentPoint.x,
-                    -1 * command.parameters[1] + 2 * path.currentPoint.y);
+                    -1 * command.parameters[1] + 2 * currentPoint.y);
             } else {
-                NSPoint oldPoint = CGPointMake(path.currentPoint.x - command.parameters[2],
+                CGPoint oldPoint = CGPointMake(currentPoint.x - command.parameters[2],
-                    path.currentPoint.y - command.parameters[3]);
+                    currentPoint.y - command.parameters[3]);
-                commandPoint = CGPointMake(-1 * (command.parameters[0] + oldPoint.x) + 2 * (path.currentPoint.x),
+                commandPoint = CGPointMake(-1 * (command.parameters[0] + oldPoint.x) + 2 * (currentPoint.x),
-                    -1 * (command.parameters[1] + oldPoint.y) + 2 * path.currentPoint.y);
+                    -1 * (command.parameters[1] + oldPoint.y) + 2 * currentPoint.y);
             }
         } else if (command.class == self.class) {
             // smooth quadratic curve
-            commandPoint = CGPointMake(-1 * (path.lastControlPoint.x) + 2 * (path.currentPoint.x),
+            commandPoint = CGPointMake(-1 * (path.lastControlPoint.x) + 2 * (currentPoint.x),
-                -1 * (path.lastControlPoint.y) + 2 * path.currentPoint.y);
+                -1 * (path.lastControlPoint.y) + 2 * currentPoint.y);
         }
     }
     path.lastControlPoint = commandPoint;
     if (type == kIJSVGCommandTypeAbsolute) {
-        [path.path addQuadCurveToPoint:NSMakePoint(params[0], params[1])
+        CGPathAddQuadCurveToPoint(path.path, NULL, commandPoint.x, commandPoint.y,
-                          controlPoint:commandPoint];
+                                  params[0], params[1]);
         return;
     }
-    [path.path addQuadCurveToPoint:NSMakePoint(path.currentPoint.x + params[0], path.currentPoint.y + params[1])
+    CGPathAddQuadCurveToPoint(path.path, NULL, commandPoint.x, commandPoint.y,
-                      controlPoint:commandPoint];
+                              currentPoint.x + params[0], currentPoint.y + params[1]);
 }
 
 @end

Framework/IJSVG/IJSVG/Source/Commands/IJSVGCommandVerticalLine.m

@@ -23,10 +23,11 @@
                  path:(IJSVGPath*)path
 {
     if (type == kIJSVGCommandTypeAbsolute) {
-        [path.path lineToPoint:NSMakePoint(path.currentPoint.x, params[0])];
+        CGPathAddLineToPoint(path.path, NULL, path.currentPoint.x, params[0]);
         return;
     }
-    [path.path relativeLineToPoint:NSMakePoint(0.f, params[0])];
+    CGPoint currentPoint = path.currentPoint;
+    CGPathAddLineToPoint(path.path, NULL, currentPoint.x, currentPoint.y + params[0]);
 }
 
 @end

Framework/IJSVG/IJSVG/Source/Core/IJSVG.h

@@ -6,21 +6,26 @@
 //  Copyright (c) 2014 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGBezierPathAdditions.h"
+#import <IJSVG/IJSVGColorList.h>
-#import "IJSVGColorList.h"
+#import <IJSVG/IJSVGExporter.h>
-#import "IJSVGExporter.h"
+#import <IJSVG/IJSVGGradientLayer.h>
-#import "IJSVGGradientLayer.h"
+#import <IJSVG/IJSVGGroupLayer.h>
-#import "IJSVGGroupLayer.h"
+#import <IJSVG/IJSVGImageLayer.h>
-#import "IJSVGImageLayer.h"
+#import <IJSVG/IJSVGLayerTree.h>
-#import "IJSVGLayerTree.h"
+#import <IJSVG/IJSVGParser.h>
-#import "IJSVGParser.h"
+#import <IJSVG/IJSVGRendering.h>
-#import "IJSVGRendering.h"
+#import <IJSVG/IJSVGRenderingStyle.h>
-#import "IJSVGRenderingStyle.h"
+#import <IJSVG/IJSVGTransaction.h>
-#import "IJSVGTransaction.h"
 #import <Foundation/Foundation.h>
 
 @class IJSVG;
 
+typedef NS_OPTIONS(NSInteger, IJSVGMatchPropertiesMask) {
+    IJSVGMatchPropertyNone = 0,
+    IJSVGMatchPropertyContainsMaskedElement = 1 << 0,
+    IJSVGMatchPropertyContainsStrokedElement = 1 << 1
+};
+
 @protocol IJSVGDelegate <NSObject, IJSVGParserDelegate>
 
 @optional
@@ -44,7 +49,6 @@
     id<IJSVGDelegate> _delegate;
     IJSVGLayer* _layerTree;
     CGRect _viewBox;
-    CGSize _proposedViewSize;
     CGFloat _backingScaleFactor;
     CGFloat _lastProposedBackingScale;
     IJSVGRenderQuality _lastProposedRenderQuality;
@@ -68,7 +72,10 @@
 // fillColor, strokeColor, pattern and gradient fill
 @property (nonatomic, assign) IJSVGRenderQuality renderQuality;
 @property (nonatomic, assign) BOOL clipToViewport;
-@property (nonatomic, retain) IJSVGRenderingStyle* style;
+@property (nonatomic, retain) IJSVGRenderingStyle* renderingStyle;
+@property (nonatomic, readonly) IJSVGUnitSize * intrinsicSize;
+@property (nonatomic, copy) NSString* title;
+@property (nonatomic, copy) NSString* desc;
 
 - (void)prepForDrawingInView:(NSView*)view;
 - (BOOL)isFont;
@@ -80,6 +87,8 @@
 - (IJSVGLayer*)layerWithTree:(IJSVGLayerTree*)tree;
 - (NSArray<IJSVG*>*)subSVGs:(BOOL)recursive;
 - (NSString*)SVGStringWithOptions:(IJSVGExporterOptions)options;
+- (NSString*)SVGStringWithOptions:(IJSVGExporterOptions)options
+             floatingPointOptions:(IJSVGFloatingPointOptions)floatingPointOptions;
 
 - (CGFloat)computeBackingScale:(CGFloat)scale;
 - (void)discardDOM;
@@ -101,6 +110,10 @@
 - (id)initWithSVGString:(NSString*)string
                   error:(NSError**)error;
 
+- (id)initWithSVGData:(NSData*)data;
+- (id)initWithSVGData:(NSData*)data
+                error:(NSError**)error;
+
 - (id)initWithFile:(NSString*)file;
 - (id)initWithFile:(NSString*)file
              error:(NSError**)error;
@@ -117,11 +130,21 @@
 - (id)initWithFilePathURL:(NSURL*)aURL
                     error:(NSError**)error
                  delegate:(id<IJSVGDelegate>)delegate;
+
+- (id)initWithDataAssetNamed:(NSDataAssetName)name
+                       error:(NSError**)error;
+- (id)initWithDataAssetNamed:(NSDataAssetName)name
+                      bundle:(NSBundle*)bundle
+                       error:(NSError**)error;
+
 - (NSImage*)imageWithSize:(NSSize)aSize;
 - (NSImage*)imageWithSize:(NSSize)aSize
                     error:(NSError**)error;
 - (NSImage*)imageWithSize:(NSSize)aSize
                   flipped:(BOOL)flipped;
+- (NSImage*)imageWithSize:(NSSize)aSize
+                  flipped:(BOOL)flipped
+                    error:(NSError**)error;
 - (NSImage*)imageByMaintainingAspectRatioWithSize:(NSSize)aSize
                                           flipped:(BOOL)flipped
                                             error:(NSError**)error;
@@ -153,5 +176,9 @@
 - (void)setNeedsDisplay;
 
 // colors
-- (IJSVGColorList*)computedColorList:(BOOL*)hasPatternFills;
+- (IJSVGColorList*)colorList;
+- (void)performBlock:(dispatch_block_t)block;
+
+// matching
+- (BOOL)matchesPropertiesWithMask:(IJSVGMatchPropertiesMask)mask;
 @end

Framework/IJSVG/IJSVG/Source/Core/IJSVG.m

@@ -12,23 +12,28 @@
 
 @implementation IJSVG
 
-@synthesize renderingBackingScaleHelper;
+// these are explicitly implemented
-@synthesize clipToViewport;
+@synthesize title = _title;
-@synthesize renderQuality;
+@synthesize desc = _desc;
-@synthesize style = _style;
 
 - (void)dealloc
 {
     // this can all be called on the background thread to be released
-    (void)([renderingBackingScaleHelper release]),
+    BOOL hasTransaction = IJSVGBeginTransaction();
-        renderingBackingScaleHelper = nil;
+    (void)([_renderingBackingScaleHelper release]), _renderingBackingScaleHelper = nil;
     (void)([_replacementColors release]), _replacementColors = nil;
-    (void)([_style release]), _style = nil;
+    (void)([_renderingStyle release]), _renderingStyle = nil;
     (void)([_group release]), _group = nil;
+    (void)([_intrinsicSize release]), _intrinsicSize = nil;
+    (void)([_title release]), _title = nil;
+    (void)([_desc release]), _desc = nil;
 
     // kill any memory that has been around
     (void)([_layerTree release]), _layerTree = nil;
     [super dealloc];
+    if (hasTransaction == YES) {
+        IJSVGEndTransaction();
+    }
 }
 
 + (id)svgNamed:(NSString*)string
@@ -64,12 +69,35 @@
         ext = @"svg";
     }
     if ((str = [bundle pathForResource:[string stringByDeletingPathExtension]
-                                ofType:ext])
+                                ofType:ext]) != nil) {
-        != nil) {
         return [[[self alloc] initWithFile:str
                                      error:error
                                   delegate:delegate] autorelease];
     }
+    
+    // check the asset catalogues
+    return [[[self alloc] initWithDataAssetNamed:string
+                                           error:error] autorelease];
+}
+
+- (id)initWithDataAssetNamed:(NSDataAssetName)name
+                       error:(NSError**)error
+{
+    return [self initWithDataAssetNamed:name
+                                 bundle:NSBundle.mainBundle
+                                  error:error];
+}
+
+- (id)initWithDataAssetNamed:(NSDataAssetName)name
+                      bundle:(NSBundle*)bundle
+                       error:(NSError**)error
+{
+    NSDataAsset* dataAsset = [[[NSDataAsset alloc] initWithName:name
+                                                         bundle:bundle] autorelease];
+    if(dataAsset != nil) {
+        return [[self initWithSVGData:dataAsset.data
+                                error:error] autorelease];
+    }
     return nil;
 }
 
@@ -79,10 +107,14 @@
     __block IJSVGImageLayer* imageLayer = nil;
 
     // create the layers we require
+    BOOL hasTransaction = IJSVGBeginTransaction();
     layer = [[[IJSVGGroupLayer alloc] init] autorelease];
     imageLayer =
         [[[IJSVGImageLayer alloc] initWithImage:image] autorelease];
     [layer addSublayer:imageLayer];
+    if (hasTransaction == YES) {
+        IJSVGEndTransaction();
+    }
 
     // return the initialized SVG
     return [self initWithSVGLayer:layer
@@ -115,7 +147,7 @@
              error:(NSError**)error
           delegate:(id<IJSVGDelegate>)delegate
 {
-    return [self initWithFilePathURL:[NSURL fileURLWithPath:file]
+    return [self initWithFilePathURL:[NSURL fileURLWithPath:file isDirectory:NO]
                                error:error
                             delegate:delegate];
 }
@@ -192,6 +224,21 @@
     return self;
 }
 
+- (id)initWithSVGData:(NSData*)data
+{
+    return [self initWithSVGData:data
+                           error:nil];
+}
+
+- (id)initWithSVGData:(NSData*)data
+                error:(NSError**)error
+{
+    NSString* svgString = [[NSString alloc] initWithData:data
+                                                encoding:NSUTF8StringEncoding];
+    return [self initWithSVGString:svgString.autorelease
+                             error:error];
+}
+
 - (id)initWithSVGString:(NSString*)string
 {
     return [self initWithSVGString:string
@@ -238,6 +285,15 @@
     return self;
 }
 
+- (void)performBlock:(dispatch_block_t)block
+{
+    BOOL hasTransaction = IJSVGBeginTransaction();
+    block();
+    if (hasTransaction == YES) {
+        IJSVGEndTransaction();
+    }
+}
+
 - (void)discardDOM
 {
     // if we discard, we can no longer create a tree, so lets create tree
@@ -250,24 +306,43 @@
 
 - (void)_setupBasicInfoFromGroup
 {
-    // store the viewbox
     _viewBox = _group.viewBox;
-    _proposedViewSize = _group.proposedViewSize;
+    _intrinsicSize = _group.intrinsicSize.retain;
 }
 
 - (void)_setupBasicsFromAnyInitializer
 {
-    self.style = [[[IJSVGRenderingStyle alloc] init] autorelease];
+    self.renderingStyle = [[[IJSVGRenderingStyle alloc] init] autorelease];
     self.clipToViewport = YES;
     self.renderQuality = kIJSVGRenderQualityFullResolution;
 
     // setup low level backing scale
     _lastProposedBackingScale = 0.f;
     self.renderingBackingScaleHelper = ^CGFloat {
-        return 1.f;
+        return NSScreen.mainScreen.backingScaleFactor;
     };
 }
 
+- (void)setTitle:(NSString*)title
+{
+    _group.title = title;
+}
+
+- (NSString*)title
+{
+    return _group.title;
+}
+
+- (void)setDesc:(NSString*)description
+{
+    _group.desc = description;
+}
+
+- (NSString*)desc
+{
+    return _group.desc;
+}
+
 - (NSString*)identifier
 {
     return _group.identifier;
@@ -310,10 +385,19 @@
 
 - (NSString*)SVGStringWithOptions:(IJSVGExporterOptions)options
 {
-    IJSVGExporter* exporter =
+    IJSVGExporter* exporter = [[[IJSVGExporter alloc] initWithSVG:self
-        [[[IJSVGExporter alloc] initWithSVG:self
+                                                             size:self.viewBox.size
-                                       size:self.viewBox.size
+                                                          options:options] autorelease];
-                                    options:options] autorelease];
+    return [exporter SVGString];
+}
+
+- (NSString*)SVGStringWithOptions:(IJSVGExporterOptions)options
+             floatingPointOptions:(IJSVGFloatingPointOptions)floatingPointOptions
+{
+    IJSVGExporter* exporter = [[[IJSVGExporter alloc] initWithSVG:self
+                                                             size:self.viewBox.size
+                                                          options:options
+                                             floatingPointOptions:floatingPointOptions] autorelease];
     return [exporter SVGString];
 }
 
@@ -340,11 +424,19 @@
                          error:nil];
 }
 
+- (NSSize)computeSVGSizeWithRenderSize:(NSSize)size
+{
+    IJSVGUnitSize* svgSize = _intrinsicSize;
+    return NSMakeSize([svgSize.width computeValue:size.width],
+        [svgSize.height computeValue:size.height]);
+}
+
 - (NSRect)computeOriginalDrawingFrameWithSize:(NSSize)aSize
 {
-    [self _beginDraw:(NSRect){ .origin = CGPointZero, .size = aSize }];
+    NSSize propSize = [self computeSVGSizeWithRenderSize:aSize];
-    return NSMakeRect(0.f, 0.f, _proposedViewSize.width * _clipScale,
+    [self _beginDraw:(NSRect) { .origin = CGPointZero, .size = aSize }];
-        _proposedViewSize.height * _clipScale);
+    return NSMakeRect(0.f, 0.f, propSize.width * _clipScale,
+        propSize.height * _clipScale);
 }
 
 - (CGImageRef)newCGImageRefWithSize:(CGSize)size
@@ -353,7 +445,7 @@
 {
     // setup the drawing rect, this is used for both the intial drawing
     // and the backing scale helper block
-    NSRect rect = (CGRect){
+    NSRect rect = (CGRect) {
         .origin = CGPointZero,
         .size = (CGSize)size
     };
@@ -362,7 +454,7 @@
     [self _beginDraw:rect];
 
     // make sure we setup the scale based on the backing scale factor
-    CGFloat scale = [self backindScaleFactor:NULL];
+    CGFloat scale = [self backingScaleFactor:NULL];
 
     // create the context and colorspace
     CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
@@ -422,7 +514,7 @@
 - (NSData*)PDFData:(NSError**)error
 {
     return [self
-        PDFDataWithRect:(NSRect){ .origin = NSZeroPoint, .size = _viewBox.size }
+        PDFDataWithRect:(NSRect) { .origin = NSZeroPoint, .size = _viewBox.size }
                   error:error];
 }
 
@@ -480,20 +572,24 @@
 {
     // turn on converts masks to PDF's
     // as PDF context and layer masks dont work
-    void (^block)(CALayer* layer, BOOL isMask) = ^void(CALayer* layer, BOOL isMask) {
+    void (^block)(CALayer* layer, BOOL isMask, BOOL* stop) =
+    ^void(CALayer* layer, BOOL isMask, BOOL* stop) {
         ((IJSVGLayer*)layer).convertMasksToPaths = YES;
     };
-    [IJSVGLayer recursivelyWalkLayer:self.layer withBlock:block];
+    [IJSVGLayer recursivelyWalkLayer:self.layer
+                           withBlock:block];
 }
 
 - (void)_endVectorDraw
 {
     // turn of convert masks to paths as not
     // needed for generic rendering
-    void (^block)(CALayer* layer, BOOL isMask) = ^void(CALayer* layer, BOOL isMask) {
+    void (^block)(CALayer* layer, BOOL isMask, BOOL* stop) =
+    ^void(CALayer* layer, BOOL isMask, BOOL* stop) {
         ((IJSVGLayer*)layer).convertMasksToPaths = NO;
     };
-    [IJSVGLayer recursivelyWalkLayer:self.layer withBlock:block];
+    [IJSVGLayer recursivelyWalkLayer:self.layer
+                           withBlock:block];
 }
 
 - (void)prepForDrawingInView:(NSView*)view
@@ -540,8 +636,14 @@
 - (BOOL)drawInRect:(NSRect)rect
              error:(NSError**)error
 {
+    CGContextRef currentCGContext;
+    if (@available(macOS 10.10, *)) {
+        currentCGContext = NSGraphicsContext.currentContext.CGContext;
+    } else {
+        currentCGContext = NSGraphicsContext.currentContext.graphicsPort;
+    }
     return [self _drawInRect:rect
-                     context:[[NSGraphicsContext currentContext] CGContext]
+                     context:currentCGContext
                        error:error];
 }
 
@@ -557,14 +659,22 @@
     // we also need to calculate the viewport so we can clip
     // the drawing if needed
     NSRect viewPort = NSZeroRect;
-    viewPort.origin.x = round((rect.size.width / 2 - (_proposedViewSize.width / 2) * _clipScale) + rect.origin.x);
+    NSSize propSize = [self computeSVGSizeWithRenderSize:rect.size];
+    viewPort.origin.x = round((rect.size.width / 2 - (propSize.width / 2) * _clipScale) + rect.origin.x);
     viewPort.origin.y = round(
-        (rect.size.height / 2 - (_proposedViewSize.height / 2) * _clipScale) + rect.origin.y);
+        (rect.size.height / 2 - (propSize.height / 2) * _clipScale) + rect.origin.y);
-    viewPort.size.width = _proposedViewSize.width * _clipScale;
+    viewPort.size.width = propSize.width * _clipScale;
-    viewPort.size.height = _proposedViewSize.height * _clipScale;
+    viewPort.size.height = propSize.height * _clipScale;
 
     // check the viewport
-    if (NSEqualRects(_viewBox, NSZeroRect) || _viewBox.size.width <= 0 || _viewBox.size.height <= 0 || NSEqualRects(NSZeroRect, viewPort) || CGRectIsEmpty(viewPort) || CGRectIsNull(viewPort) || viewPort.size.width <= 0 || viewPort.size.height <= 0) {
+    if (NSEqualRects(_viewBox, NSZeroRect) ||
+        _viewBox.size.width <= 0 ||
+        _viewBox.size.height <= 0 ||
+        NSEqualRects(NSZeroRect, viewPort) ||
+        CGRectIsEmpty(viewPort) ||
+        CGRectIsNull(viewPort) ||
+        viewPort.size.width <= 0 ||
+        viewPort.size.height <= 0) {
         *valid = NO;
         return NSZeroRect;
     }
@@ -615,9 +725,7 @@
 
             // do we need to update the backing scales on the
             // layers?
-            if (self.renderingBackingScaleHelper != nil) {
+            [self backingScaleFactor:nil];
-                [self backindScaleFactor:nil];
-            }
 
             CGInterpolationQuality quality;
             switch (self.renderQuality) {
@@ -634,7 +742,11 @@
             }
             }
             CGContextSetInterpolationQuality(ref, quality);
+            BOOL hasTransaction = IJSVGBeginTransaction();
             [self.layer renderInContext:ref];
+            if (hasTransaction == YES) {
+                IJSVGEndTransaction();
+            }
         }
     } @catch (NSException* exception) {
         // just catch and give back a drawing error to the caller
@@ -648,7 +760,7 @@
     return (error == nil);
 }
 
-- (CGFloat)backindScaleFactor:(CGFloat* _Nullable)proposedBackingScale
+- (CGFloat)backingScaleFactor:(CGFloat* _Nullable)proposedBackingScale
 {
     __block CGFloat scale = 1.f;
     scale = (self.renderingBackingScaleHelper)();
@@ -663,7 +775,7 @@
 
     // dont do anything, nothing has changed, no point of iterating over
     // every layer for no reason!
-    if (scale == _lastProposedBackingScale && renderQuality == _lastProposedRenderQuality) {
+    if (scale == _lastProposedBackingScale && _renderQuality == _lastProposedRenderQuality) {
         return _backingScaleFactor;
     }
 
@@ -675,7 +787,8 @@
     }
 
     // walk the tree
-    void (^block)(CALayer* layer, BOOL isMask) = ^void(CALayer* layer, BOOL isMask) {
+    void (^block)(CALayer* layer, BOOL isMask, BOOL* stop) =
+    ^void(CALayer* layer, BOOL isMask, BOOL* stop) {
         IJSVGLayer* propLayer = ((IJSVGLayer*)layer);
         propLayer.renderQuality = quality;
         if (propLayer.requiresBackingScaleHelp == YES) {
@@ -684,19 +797,27 @@
     };
 
     // gogogo
+    BOOL hasTransaction = IJSVGBeginTransaction();
     [IJSVGLayer recursivelyWalkLayer:self.layer withBlock:block];
+    if (hasTransaction == YES) {
+        IJSVGEndTransaction();
+    }
     return _backingScaleFactor;
 }
 
 - (IJSVGLayer*)layerWithTree:(IJSVGLayerTree*)tree
 {
     // clear memory
+    BOOL hasTransaction = IJSVGBeginTransaction();
     if (_layerTree != nil) {
         (void)([_layerTree release]), _layerTree = nil;
     }
 
     // force rebuild of the tree
     _layerTree = [[tree layerForNode:_group] retain];
+    if (hasTransaction == YES) {
+        IJSVGEndTransaction();
+    }
     return _layerTree;
 }
 
@@ -710,16 +831,16 @@
     // from this SVG object
     IJSVGLayerTree* renderer = [[[IJSVGLayerTree alloc] init] autorelease];
     renderer.viewBox = self.viewBox;
-    renderer.style = self.style;
+    renderer.style = self.renderingStyle;
 
     // return the rendered layer
     return [self layerWithTree:renderer];
 }
 
-- (void)setStyle:(IJSVGRenderingStyle*)style
+- (void)setRenderingStyle:(IJSVGRenderingStyle*)style
 {
-    (void)([_style release]), _style = nil;
+    (void)([_renderingStyle release]), _renderingStyle = nil;
-    _style = style.retain;
+    _renderingStyle = style.retain;
 }
 
 - (void)observeValueForKeyPath:(NSString*)keyPath
@@ -728,7 +849,7 @@
                        context:(void*)context
 {
     // invalidate the tree if a style is set
-    if (object == _style) {
+    if (object == _renderingStyle) {
         [self invalidateLayerTree];
     }
 }
@@ -743,53 +864,72 @@
     (void)([_layerTree release]), _layerTree = nil;
 }
 
-- (IJSVGColorList*)computedColorList:(BOOL*)hasPatternFills
+- (IJSVGColorList*)colorList
 {
     IJSVGColorList* sheet = [[[IJSVGColorList alloc] init] autorelease];
-    void (^block)(CALayer* layer, BOOL isMask) = ^void(CALayer* layer,
+    void (^block)(CALayer* layer, BOOL isMask, BOOL* stop) =
-        BOOL isMask) {
+    ^void(CALayer* layer, BOOL isMask, BOOL* stop) {
-        if ([layer isKindOfClass:[IJSVGShapeLayer class]] && isMask == NO && layer.isHidden == NO) {
+        
-            IJSVGShapeLayer* sLayer = (IJSVGShapeLayer*)layer;
+        // dont do anything
-            NSColor* color = nil;
+        if(([layer isKindOfClass:IJSVGShapeLayer.class] && isMask == NO &&
-            if (sLayer.fillColor != nil) {
+            layer.isHidden == NO) == false) {
-                color = [NSColor colorWithCGColor:sLayer.fillColor];
+            return;
-                if (color.alphaComponent != 0.f) {
+        }
-                    [sheet addColor:color];
+        
-                }
+          
-            }
+        // compute
-            if (sLayer.strokeColor != nil) {
+        IJSVGShapeLayer* sLayer = (IJSVGShapeLayer*)layer;
-                color = [NSColor colorWithCGColor:sLayer.strokeColor];
+        NSColor* color = nil;
-                color = [IJSVGColor computeColorSpace:color];
-                if (color.alphaComponent != 0.f) {
-                    [sheet addColor:color];
-                }
-            }
 
-            // check for any patterns
+        // fill color
-            if (sLayer.patternFillLayer != nil || sLayer.gradientFillLayer != nil || sLayer.gradientStrokeLayer != nil || sLayer.patternStrokeLayer != nil) {
+        if (sLayer.fillColor != nil) {
-                if (hasPatternFills != nil && *hasPatternFills != YES) {
+            color = [NSColor colorWithCGColor:sLayer.fillColor];
-                    *hasPatternFills = YES;
+            color = [IJSVGColor computeColorSpace:color];
-                }
+            if (color.alphaComponent != 0.f) {
+                IJSVGColorType* type = nil;
+                type = [IJSVGColorType typeWithColor:color
+                                               flags:IJSVGColorTypeFlagFill];
+                [sheet addColor:type];
+            }
+        }
 
-                // add any colors from gradients
+        // stroke color
-                IJSVGGradientLayer* gradLayer = nil;
+        if (sLayer.strokeColor != nil) {
-                IJSVGGradientLayer* gradStrokeLayer = nil;
+            color = [NSColor colorWithCGColor:sLayer.strokeColor];
-                if ((gradLayer = sLayer.gradientFillLayer) != nil) {
+            color = [IJSVGColor computeColorSpace:color];
-                    IJSVGColorList* gradSheet = gradLayer.gradient.computedColorList;
+            if (color.alphaComponent != 0.f) {
-                    [sheet addColorsFromList:gradSheet];
+                IJSVGColorType* type = nil;
-                }
+                type = [IJSVGColorType typeWithColor:color
-                if ((gradStrokeLayer = sLayer.gradientStrokeLayer) != nil) {
+                                               flags:IJSVGColorTypeFlagStroke];
-                    IJSVGColorList* gradSheet = gradStrokeLayer.gradient.computedColorList;
+                [sheet addColor:type];
-                    [sheet addColorsFromList:gradSheet];
+            }
-                }
+        }
+
+        // check for any patterns or strokes
+        if (sLayer.patternFillLayer != nil || sLayer.gradientFillLayer != nil ||
+           sLayer.gradientStrokeLayer != nil || sLayer.patternStrokeLayer != nil) {
+            
+           // add any colors from gradients
+            IJSVGGradientLayer* gradLayer = nil;
+            IJSVGGradientLayer* gradStrokeLayer = nil;
+            
+            // gradient fill
+            if ((gradLayer = sLayer.gradientFillLayer) != nil) {
+                IJSVGColorList* gradSheet = gradLayer.gradient.colorList;
+                [sheet addColorsFromList:gradSheet];
+            }
+            
+            // gradient stroke layers
+            if ((gradStrokeLayer = sLayer.gradientStrokeLayer) != nil) {
+                IJSVGColorList* gradSheet = gradStrokeLayer.gradient.colorList;
+                [sheet addColorsFromList:gradSheet];
             }
         }
     };
-
+    
-    // walk
+    // gogogo!
-    [IJSVGLayer recursivelyWalkLayer:self.layer withBlock:block];
+    [IJSVGLayer recursivelyWalkLayer:self.layer
-
+                           withBlock:block];
-    // return the colours!
     return sheet;
 }
 
@@ -800,12 +940,13 @@
     // to transform the paths into our viewbox
     NSSize dest = rect.size;
     NSSize source = _viewBox.size;
-    _clipScale = MIN(dest.width / _proposedViewSize.width,
+    NSSize propSize = [self computeSVGSizeWithRenderSize:rect.size];
-        dest.height / _proposedViewSize.height);
+    _clipScale = MIN(dest.width / propSize.width,
+        dest.height / propSize.height);
 
     // work out the actual scale based on the clip scale
-    CGFloat w = _proposedViewSize.width * _clipScale;
+    CGFloat w = propSize.width * _clipScale;
-    CGFloat h = _proposedViewSize.height * _clipScale;
+    CGFloat h = propSize.height * _clipScale;
     _scale = MIN(w / source.width, h / source.height);
 }
 
@@ -858,4 +999,43 @@
     }
 }
 
+#pragma mark matching
+
+- (BOOL)matchesPropertiesWithMask:(IJSVGMatchPropertiesMask)mask
+{
+    __block IJSVGMatchPropertiesMask matchedMask = IJSVGMatchPropertyNone;
+    IJSVGNodeWalkHandler handler = ^(IJSVGNode* node, BOOL* allowChildNodes,
+                                     BOOL* stop) {
+        // dont compute nodes that are not designed
+        // to be rendered
+        if(node.shouldRender == NO) {
+            *allowChildNodes = NO;
+            return;
+        }
+        
+        // check for stroke
+        IJSVGPath* path = (IJSVGPath*)node;
+        if((mask & IJSVGMatchPropertyContainsStrokedElement) != 0 &&
+           [node isKindOfClass:IJSVGPath.class] == YES &&
+           path.isStroked == YES) {
+            matchedMask |= IJSVGMatchPropertyContainsStrokedElement;
+        }
+        
+        // check for mask
+        if((mask & IJSVGMatchPropertyContainsMaskedElement) != 0 &&
+           node.mask != nil) {
+            matchedMask |= IJSVGMatchPropertyContainsMaskedElement;
+        }
+        
+        // simply check if masks equal, if they are, stop this loop
+        // and return the evaluation
+        if(matchedMask == mask) {
+            *stop = YES;
+        }
+    };
+    [IJSVGNode walkNodeTree:_group
+                    handler:handler];
+    return matchedMask == mask;
+}
+
 @end

Framework/IJSVG/IJSVG/Source/Core/IJSVGFontConverter.h

@@ -6,7 +6,7 @@
 //  Copyright (c) 2015 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVG.h"
+#import <IJSVG/IJSVG.h>
 #import <Foundation/Foundation.h>
 
 typedef void (^IJSVGFontConverterEnumerateBlock)(NSString* unicode, IJSVG* svg);

Framework/IJSVG/IJSVG/Source/Core/IJSVGFontConverter.m

@@ -6,7 +6,6 @@
 //  Copyright (c) 2015 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGBezierPathAdditions.h"
 #import "IJSVGFontConverter.h"
 #import "IJSVGShapeLayer.h"
 
@@ -104,16 +103,15 @@
 
 + (IJSVG*)convertIJSVGPathToSVG:(IJSVGPath*)path
 {
-    CGPathRef cgPath = [path.path newCGPathRef:NO];
+    CGPathRef flippedPath = [IJSVGUtils newFlippedCGPath:path.path];
-    CGPathRef flippedPath = [IJSVGUtils newFlippedCGPath:cgPath];
     IJSVG* svg = [self convertPathToSVG:flippedPath];
     CGPathRelease(flippedPath);
-    CGPathRelease(cgPath);
     return svg;
 }
 
 + (IJSVG*)convertPathToSVG:(CGPathRef)path
 {
+    IJSVGBeginTransaction();
     __block IJSVG* svg = nil;
     IJSVGGroupLayer* layer = [[[IJSVGGroupLayer alloc] init] autorelease];
     IJSVGShapeLayer* shape = [[[IJSVGShapeLayer alloc] init] autorelease];
@@ -122,6 +120,7 @@
     CGRect box = CGPathGetPathBoundingBox(path);
     svg = [[IJSVG alloc] initWithSVGLayer:layer
                                   viewBox:box];
+    IJSVGEndTransaction();
     return [svg autorelease];
 }
 

Framework/IJSVG/IJSVG/Source/Core/IJSVGImageRep.h

@@ -17,6 +17,9 @@
     IJSVG* _svg;
 }
 
+- (instancetype)initWithData:(NSData*)data;
+
 @property (nonatomic, readonly) CGRect viewBox;
+@property (nonatomic, readonly) IJSVG* SVG;
 
 @end

Framework/IJSVG/IJSVG/Source/Core/IJSVGImageRep.m

@@ -11,8 +11,6 @@
 
 @implementation IJSVGImageRep
 
-@synthesize viewBox = _viewBox;
-
 + (void)load
 {
     [NSBitmapImageRep registerImageRepClass:self];
@@ -25,12 +23,20 @@
 
 + (NSArray<NSString*>*)imageTypes
 {
-    return @[ (NSString*)kUTTypeScalableVectorGraphics, @"svg" ];
+    if (@available(macOS 10.10, *)) {
+        return @[ (NSString*)kUTTypeScalableVectorGraphics, @"svg" ];
+    } else {
+        return @[ @"public.svg-image", @"svg" ];
+    }
 }
 
 + (NSArray<NSString*>*)imageUnfilteredTypes
 {
-    return @[ (NSString*)kUTTypeScalableVectorGraphics, @"svg" ];
+    if (@available(macOS 10.10, *)) {
+        return @[ (NSString*)kUTTypeScalableVectorGraphics, @"svg" ];
+    } else {
+        return @[ @"public.svg-image", @"svg" ];
+    }
 }
 
 + (NSArray<NSImageRep*>*)imageRepsWithData:(NSData*)data
@@ -101,4 +107,9 @@
     return _svg.viewBox;
 }
 
+- (IJSVG*)SVG
+{
+    return _svg;
+}
+
 @end

Framework/IJSVG/IJSVG/Source/Core/IJSVGView.h

@@ -6,7 +6,7 @@
 //  Copyright © 2017 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVG.h"
+#import <IJSVG/IJSVG.h>
 #import <Cocoa/Cocoa.h>
 
 IB_DESIGNABLE

Framework/IJSVG/IJSVG/Source/Core/IJSVGView.m

@@ -42,7 +42,7 @@
     if (imageName != nil) {
         IJSVG* anSVG = [IJSVG svgNamed:imageName];
         if (tintColor != nil) {
-            anSVG.style.fillColor = tintColor;
+            anSVG.renderingStyle.fillColor = tintColor;
         }
         self.SVG = anSVG;
     }

Framework/IJSVG/IJSVG/Source/Core/IJSVGWriter.h

@@ -1,19 +0,0 @@
-//
-//  IJSVGWriter.h
-//  IJSVGExample
-//
-//  Created by Curtis Hard on 21/05/2015.
-//  Copyright (c) 2015 Curtis Hard. All rights reserved.
-//
-
-#import "IJSVGPath.h"
-#import <Foundation/Foundation.h>
-
-@interface IJSVGWriter : NSObject {
-}
-
-+ (NSString*)SVGDocumentStringForSVGGlyph:(IJSVGPath*)node;
-+ (NSString*)SVGDocumentStringForBezierPath:(NSBezierPath*)path;
-+ (NSXMLDocument*)SVGDocumentForBezierPath:(NSBezierPath*)path;
-
-@end

Framework/IJSVG/IJSVG/Source/Core/IJSVGWriter.m

@@ -1,115 +0,0 @@
-//
-//  IJSVGWriter.m
-//  IJSVGExample
-//
-//  Created by Curtis Hard on 21/05/2015.
-//  Copyright (c) 2015 Curtis Hard. All rights reserved.
-//
-
-#import "IJSVGWriter.h"
-
-@implementation IJSVGWriter
-
-+ (NSString*)SVGDocumentStringForSVGGlyph:(IJSVGPath*)node
-{
-    NSBezierPath* path = [node path];
-    // we need to flip it
-    NSAffineTransform* trans = NSAffineTransform.transform;
-    [trans scaleXBy:1.f yBy:-1.f];
-    [trans translateXBy:0.f yBy:path.controlPointBounds.size.height];
-    path = [trans transformBezierPath:path];
-    return [self.class SVGDocumentStringForBezierPath:path];
-}
-
-+ (NSString*)SVGDocumentStringForBezierPath:(NSBezierPath*)path
-{
-    return [self.class SVGDocumentForBezierPath:path].XMLString;
-}
-
-+ (NSXMLDocument*)SVGDocumentForBezierPath:(NSBezierPath*)path
-{
-    NSXMLElement* root = [self.class rootElementForPath:path];
-
-    // create the path data
-    NSXMLElement* p = [[[NSXMLElement alloc] initWithName:@"path"] autorelease];
-
-    // add the drawing command
-    NSXMLNode* n = [[[NSXMLNode alloc] initWithKind:NSXMLAttributeKind] autorelease];
-    [n setName:@"d"];
-    [n setStringValue:[self.class SVGPathStringForBezierPath:path]];
-    [p addAttribute:n];
-
-    // add the drawing path to the root
-    [root addChild:p];
-    return [[[NSXMLDocument alloc] initWithRootElement:root] autorelease];
-}
-
-+ (NSXMLElement*)rootElementForPath:(NSBezierPath*)path
-{
-    NSXMLElement* element = [[[NSXMLElement alloc] initWithName:@"svg"] autorelease];
-    NSRect bounds = path.controlPointBounds;
-
-    // width
-    NSXMLNode* att = [[[NSXMLNode alloc] initWithKind:NSXMLAttributeKind] autorelease];
-    [att setName:@"width"];
-    [att setStringValue:[NSString stringWithFormat:@"%f", bounds.size.width]];
-    [element addAttribute:att];
-
-    // height
-    att = [[[NSXMLNode alloc] initWithKind:NSXMLAttributeKind] autorelease];
-    [att setName:@"height"];
-    [att setStringValue:[NSString stringWithFormat:@"%f", bounds.size.height]];
-    [element addAttribute:att];
-
-    // viewbox
-    att = [[[NSXMLNode alloc] initWithKind:NSXMLAttributeKind] autorelease];
-    [att setName:@"viewBox"];
-    [att setStringValue:[NSString stringWithFormat:@"%f %f %f %f", bounds.origin.x, bounds.origin.y, bounds.size.width, bounds.size.height]];
-    [element addAttribute:att];
-
-    // namespace
-    att = [[[NSXMLNode alloc] initWithKind:NSXMLAttributeKind] autorelease];
-    [att setName:@"xmlns"];
-    [att setStringValue:@"http://www.w3.org/2000/svg"];
-    [element addAttribute:att];
-    return element;
-}
-
-+ (NSString*)SVGPathStringForBezierPath:(NSBezierPath*)path
-{
-    NSMutableString* str = [[[NSMutableString alloc] init] autorelease];
-    for (NSInteger i = 0; i < path.elementCount; i++) {
-        NSBezierPathElement element = [path elementAtIndex:i];
-        switch (element) {
-        // move
-        case NSMoveToBezierPathElement: {
-            NSPoint points[1];
-            [path elementAtIndex:i associatedPoints:points];
-            [str appendFormat:@"M%f %f", points[0].x, points[0].y];
-            break;
-        }
-        // line
-        case NSLineToBezierPathElement: {
-            NSPoint points[1];
-            [path elementAtIndex:i associatedPoints:points];
-            [str appendFormat:@"L%f %f", points[0].x, points[0].y];
-            break;
-        }
-        // curve
-        case NSCurveToBezierPathElement: {
-            NSPoint points[3];
-            [path elementAtIndex:i associatedPoints:points];
-            [str appendFormat:@"C%f %f %f %f %f %f", points[0].x, points[0].y, points[1].x, points[1].y, points[2].x, points[2].y];
-            break;
-        }
-        // close
-        case NSClosePathBezierPathElement: {
-            [str appendFormat:@"Z"];
-            break;
-        }
-        }
-    }
-    return str;
-}
-
-@end

Framework/IJSVG/IJSVG/Source/Exporter/IJSVGExporter.h

@@ -7,8 +7,15 @@
 //
 
 #import <Foundation/Foundation.h>
+#import <IJSVG/IJSVGUtils.h>
+#import <IJSVG/IJSVGColorType.h>
 
 @class IJSVG;
+@class IJSVGExporter;
+@class IJSVGLayer;
+@class IJSVGNode;
+
+NS_ASSUME_NONNULL_BEGIN
 
 typedef void (^IJSVGCGPathHandler)(const CGPathElement* pathElement);
 typedef void (^IJSVGPathElementEnumerationBlock)(const CGPathElement* pathElement, CGPoint currentPoint);
@@ -33,12 +40,43 @@ typedef NS_OPTIONS(NSInteger, IJSVGExporterOptions) {
     IJSVGExporterOptionColorAllowRRGGBBAA = 1 << 14,
     IJSVGExporterOptionRemoveComments = 1 << 15,
     IJSVGExporterOptionCenterWithinViewBox = 1 << 16,
-    IJSVGExporterOptionAll = IJSVGExporterOptionRemoveUselessDef | IJSVGExporterOptionRemoveUselessGroups | IJSVGExporterOptionCreateUseForPaths | IJSVGExporterOptionMoveAttributesToGroup | IJSVGExporterOptionSortAttributes | IJSVGExporterOptionCollapseGroups | IJSVGExporterOptionCleanupPaths | IJSVGExporterOptionRemoveHiddenElements | IJSVGExporterOptionScaleToSizeIfNecessary | IJSVGExporterOptionCompressOutput | IJSVGExporterOptionCollapseGradients | IJSVGExporterOptionRemoveWidthHeightAttributes | IJSVGExporterOptionColorAllowRRGGBBAA | IJSVGExporterOptionRemoveComments | IJSVGExporterOptionCenterWithinViewBox
+    IJSVGExporterOptionRemoveXMLDeclaration = 1 << 17,
+    IJSVGExporterOptionConvertArcs = 1 << 18,
+    IJSVGExporterOptionConvertShapesToPaths = 1 << 19,
+    IJSVGExporterOptionRoundTransforms = 1 << 20,
+    IJSVGExporterOptionRemoveDefaultValues = 1 << 21,
+    IJSVGExporterOptionAll = IJSVGExporterOptionRemoveUselessDef | IJSVGExporterOptionRemoveUselessGroups |
+        IJSVGExporterOptionCreateUseForPaths | IJSVGExporterOptionMoveAttributesToGroup |
+        IJSVGExporterOptionSortAttributes | IJSVGExporterOptionCollapseGroups |
+        IJSVGExporterOptionCleanupPaths | IJSVGExporterOptionRemoveHiddenElements |
+        IJSVGExporterOptionScaleToSizeIfNecessary | IJSVGExporterOptionCompressOutput |
+        IJSVGExporterOptionCollapseGradients | IJSVGExporterOptionRemoveWidthHeightAttributes |
+        IJSVGExporterOptionColorAllowRRGGBBAA | IJSVGExporterOptionRemoveComments |
+        IJSVGExporterOptionCenterWithinViewBox | IJSVGExporterOptionRemoveXMLDeclaration |
+        IJSVGExporterOptionConvertArcs | IJSVGExporterOptionConvertShapesToPaths |
+        IJSVGExporterOptionRoundTransforms | IJSVGExporterOptionRemoveDefaultValues
 };
 
 BOOL IJSVGExporterHasOption(IJSVGExporterOptions options, NSInteger option);
 void IJSVGEnumerateCGPathElements(CGPathRef path, IJSVGPathElementEnumerationBlock enumBlock);
-const NSArray* IJSVGShortCharacterArray(void);
+const NSArray<NSString*>* IJSVGShortCharacterArray(void);
+const NSDictionary<NSString*, NSString*>* IJSVGDefaultAttributes(void);
+
+
+@protocol IJSVGExporterDelegate <NSObject>
+
+@optional
+- (NSString* _Nullable)svgExporter:(IJSVGExporter*)exporter
+              identifierForElement:(NSXMLElement* _Nullable)element
+                              type:(IJSVGNodeType)type
+                         defaultID:(NSString* (^)(void))defaultID;
+- (NSString* _Nullable)svgExporter:(IJSVGExporter*)exporter
+                    stringForColor:(NSColor*)color
+                             flags:(IJSVGColorTypeFlags)flag
+                           options:(IJSVGColorStringOptions)options;
+
+
+@end
 
 @interface IJSVGExporter : NSObject {
 
@@ -50,15 +88,31 @@ const NSArray* IJSVGShortCharacterArray(void);
     NSXMLElement* _defElement;
     NSInteger _idCount;
     NSInteger _shortIdCount;
+    BOOL _appliedXLink;
+    
+    struct {
+        unsigned int identifierForElement: 1;
+        unsigned int stringForColor: 1;
+    } _respondsTo;
 }
 
-@property (nonatomic, copy) NSString* title;
+@property (nonatomic, assign) id<IJSVGExporterDelegate> delegate;
-@property (nonatomic, copy) NSString* description;
+@property (nonatomic, assign) IJSVGFloatingPointOptions floatingPointOptions;
+@property (nonatomic, copy, nullable) NSString* title;
+@property (nonatomic, copy, nullable) NSString* desc;
 
 - (id)initWithSVG:(IJSVG*)svg
              size:(CGSize)size
           options:(IJSVGExporterOptions)options;
+- (id)initWithSVG:(IJSVG*)svg
+             size:(CGSize)size
+          options:(IJSVGExporterOptions)options
+floatingPointOptions:(IJSVGFloatingPointOptions)floatingPointOptions;
+
 - (NSString*)SVGString;
 - (NSData*)SVGData;
+- (IJSVG*)SVG:(NSError**)error;
 
 @end
+
+NS_ASSUME_NONNULL_END

Framework/IJSVG/IJSVG/Source/Exporter/IJSVGExporterPathInstruction.h

@@ -15,30 +15,53 @@ typedef struct {
     NSArray<NSString*>* params;
 } IJSVGExporterPathInstructionCommand;
 
+typedef struct {
+    CGPoint center;
+    CGFloat radius;
+} IJSVGExporterPathInstructionCircle;
+
 @interface IJSVGExporterPathInstruction : NSObject {
 
 @private
     NSInteger _dataCount;
-    char _instruction;
     CGFloat* _data;
+    CGFloat* _base;
+    CGFloat* _coords;
 }
 
+@property (nonatomic, assign) char instruction;
+
+void IJSVGExporterPathInstructionRoundData(CGFloat* data, NSInteger length, IJSVGFloatingPointOptions options);
+CGFloat IJSVGExporterPathFloatToFixed(CGFloat number, int precision);
 IJSVGExporterPathInstructionCommand* IJSVGExporterPathInstructionCommandCopy(IJSVGExporterPathInstructionCommand command);
 void IJSVGExporterPathInstructionCommandFree(IJSVGExporterPathInstructionCommand* _Nullable command);
 
-+ (NSArray<IJSVGExporterPathInstruction*>*)instructionsFromPath:(CGPathRef)path;
++ (NSArray<IJSVGExporterPathInstruction*>*)instructionsFromPath:(CGPathRef)path
+                                           floatingPointOptions:(IJSVGFloatingPointOptions)floatingPointOptions;
 
 - (id)initWithInstruction:(char)instruction
                 dataCount:(NSInteger)floatCount;
 
-- (void)setInstruction:(char)newInstruction;
-- (char)instruction;
 - (CGFloat*)data;
 - (NSInteger)dataLength;
 
-+ (void)convertInstructionsToRelativeCoordinates:(NSArray<IJSVGExporterPathInstruction*>*)instructions;
++ (NSArray<IJSVGExporterPathInstruction*>*)convertInstructionsCurves:(NSArray<IJSVGExporterPathInstruction*>*)instructions
-+ (NSString*)pathStringFromInstructions:(NSArray<IJSVGExporterPathInstruction*>*)instructions;
+                                                floatingPointOptions:(IJSVGFloatingPointOptions)floatingPointOptions;
-+ (NSString*)pathStringWithInstructionSet:(NSArray<NSValue*>*)instructionSets;
++ (void)convertInstructionsToMixedAbsoluteRelative:(NSArray<IJSVGExporterPathInstruction*>*)instructions
+                              floatingPointOptions:(IJSVGFloatingPointOptions)floatingPointOptions;
++ (void)convertInstructionsDataToRounded:(NSArray<IJSVGExporterPathInstruction*>*)instructions
+                    floatingPointOptions:(IJSVGFloatingPointOptions)floatingPointOptions;
++ (void)convertInstructionsToRelativeCoordinates:(NSArray<IJSVGExporterPathInstruction*>*)instructions
+                            floatingPointOptions:(IJSVGFloatingPointOptions)floatingPointOptions;
++ (NSString*)pathStringFromInstructions:(NSArray<IJSVGExporterPathInstruction*>*)instructions
+                   floatingPointOptions:(IJSVGFloatingPointOptions)floatingPointOptions;
++ (NSString*)pathStringWithInstructionSet:(NSArray<NSValue*>*)instructionSets
+                     floatingPointOptions:(IJSVGFloatingPointOptions)floatingPointOptions;
 
 @end
 NS_ASSUME_NONNULL_END
+
+static NSInteger const kIJSVGExporterPathInstructionFloatPrecision = 3;
+static CGFloat const kIJSVGExporterPathInstructionErrorThreshold = 1e-2;
+
+#define IJ_SVG_EXPORT_ROUND(value) IJSVGExporterPathFloatToFixed(value, kIJSVGExporterPathInstructionFloatPrecision)

Framework/IJSVG/IJSVG/Source/Exporter/IJSVGExporterPathInstruction.m

@@ -9,13 +9,22 @@
 #import "IJSVGExporter.h"
 #import "IJSVGExporterPathInstruction.h"
 #import "IJSVGUtils.h"
+#import <math.h>
 
 @implementation IJSVGExporterPathInstruction
 
+@synthesize instruction = _instruction;
+
 - (void)dealloc
 {
     if (_data != NULL) {
-        free(_data);
+        (void)free(_data), _data = NULL;
+    }
+    if (_base != NULL) {
+        (void)free(_base), _base = NULL;
+    }
+    if (_coords != NULL) {
+        (void)free(_coords), _coords = NULL;
     }
     [super dealloc];
 }
@@ -28,8 +37,13 @@
 
         // only allocate if not zero
         if (floatCount != 0) {
+            _dataCount = floatCount;
             _data = (CGFloat*)calloc(sizeof(CGFloat), floatCount);
         }
+
+        // setup base and coords
+        _base = (CGFloat*)malloc(sizeof(CGFloat) * 2);
+        _coords = (CGFloat*)malloc(sizeof(CGFloat) * 2);
     }
     return self;
 }
@@ -39,21 +53,21 @@
     return _dataCount;
 }
 
-- (void)setInstruction:(char)newInstruction
-{
-    _instruction = newInstruction;
-}
-
-- (char)instruction
-{
-    return _instruction;
-}
-
 - (CGFloat*)data
 {
     return _data;
 }
 
+- (CGFloat*)base
+{
+    return _base;
+}
+
+- (CGFloat*)coords
+{
+    return _coords;
+}
+
 IJSVGExporterPathInstructionCommand* IJSVGExporterPathInstructionCommandCopy(IJSVGExporterPathInstructionCommand command)
 {
     IJSVGExporterPathInstructionCommand* copy = NULL;
@@ -71,10 +85,10 @@ void IJSVGExporterPathInstructionCommandFree(IJSVGExporterPathInstructionCommand
 }
 
 + (NSString*)pathStringWithInstructionSet:(NSArray<NSValue*>*)instructionSets
+                     floatingPointOptions:(IJSVGFloatingPointOptions)floatingPointOptions
 {
     IJSVGExporterPathInstructionCommand* lastCommand = NULL;
     NSMutableString* string = [[[NSMutableString alloc] init] autorelease];
-    char* lastCommandChars = NULL;
     for (NSValue* value in instructionSets) {
         // read back the bytes
         IJSVGExporterPathInstructionCommand command;
@@ -89,31 +103,9 @@ void IJSVGExporterPathInstructionCommandFree(IJSVGExporterPathInstructionCommand
             [string appendString:@" "];
         }
 
-        NSInteger index = 0;
+        // compresses the floats
-        for (NSString* dataString in command.params) {
+        NSString* compressedFloats = IJSVGCompressFloatParameterArray(command.params);
-            const char* chars = dataString.UTF8String;
+        [string appendString:compressedFloats];
-
-            // work out if the command is signed and or decimal
-            BOOL isSigned = chars[0] == '-';
-            BOOL isDecimal = (isSigned == NO && chars[0] == '.') || (isSigned == YES && chars[1] == '.');
-
-            // we also need to know if the previous command was a decimal or not
-            BOOL lastWasDecimal = NO;
-            if (lastCommandChars != NULL) {
-                lastWasDecimal = strchr(lastCommandChars, '.') != NULL;
-            }
-
-            // we only need a space if the current command is not signed
-            // a decimal and the previous command was decimal too
-            if (index++ == 0 || isSigned || (isDecimal == YES && lastWasDecimal == YES)) {
-                [string appendString:dataString];
-            } else {
-                [string appendFormat:@" %@", dataString];
-            }
-
-            // store last command chars
-            lastCommandChars = (char*)chars;
-        }
 
         // store last command
         IJSVGExporterPathInstructionCommandFree(lastCommand);
@@ -125,6 +117,7 @@ void IJSVGExporterPathInstructionCommandFree(IJSVGExporterPathInstructionCommand
 }
 
 + (NSString*)pathStringFromInstructions:(NSArray<IJSVGExporterPathInstruction*>*)instructions
+                   floatingPointOptions:(IJSVGFloatingPointOptions)floatingPointOptions
 {
     NSMutableArray* pathInstructions = [[[NSMutableArray alloc] init] autorelease];
     for (IJSVGExporterPathInstruction* instruction in instructions) {
@@ -132,11 +125,12 @@ void IJSVGExporterPathInstructionCommandFree(IJSVGExporterPathInstructionCommand
         const char lowerInstruction = tolower(instruction.instruction);
         NSArray<NSString*>* set = nil;
         switch (lowerInstruction) {
+        case 't':
         case 'm':
         case 'l': {
             set = @[
-                IJSVGShortFloatString(data[0]),
+                IJSVGShortFloatStringWithOptions(data[0], floatingPointOptions),
-                IJSVGShortFloatString(data[1])
+                IJSVGShortFloatStringWithOptions(data[1], floatingPointOptions)
             ];
             break;
         }
@@ -144,29 +138,43 @@ void IJSVGExporterPathInstructionCommandFree(IJSVGExporterPathInstructionCommand
         case 'v':
         case 'h': {
             set = @[
-                IJSVGShortFloatString(data[0])
+                IJSVGShortFloatStringWithOptions(data[0], floatingPointOptions)
             ];
             break;
         }
 
         case 'c': {
             set = @[
-                IJSVGShortFloatString(data[0]),
+                IJSVGShortFloatStringWithOptions(data[0], floatingPointOptions),
-                IJSVGShortFloatString(data[1]),
+                IJSVGShortFloatStringWithOptions(data[1], floatingPointOptions),
-                IJSVGShortFloatString(data[2]),
+                IJSVGShortFloatStringWithOptions(data[2], floatingPointOptions),
-                IJSVGShortFloatString(data[3]),
+                IJSVGShortFloatStringWithOptions(data[3], floatingPointOptions),
-                IJSVGShortFloatString(data[4]),
+                IJSVGShortFloatStringWithOptions(data[4], floatingPointOptions),
-                IJSVGShortFloatString(data[5])
+                IJSVGShortFloatStringWithOptions(data[5], floatingPointOptions)
             ];
             break;
         }
 
+        case 's':
         case 'q': {
             set = @[
-                IJSVGShortFloatString(data[0]),
+                IJSVGShortFloatStringWithOptions(data[0], floatingPointOptions),
-                IJSVGShortFloatString(data[1]),
+                IJSVGShortFloatStringWithOptions(data[1], floatingPointOptions),
-                IJSVGShortFloatString(data[2]),
+                IJSVGShortFloatStringWithOptions(data[2], floatingPointOptions),
-                IJSVGShortFloatString(data[3])
+                IJSVGShortFloatStringWithOptions(data[3], floatingPointOptions)
+            ];
+            break;
+        }
+
+        case 'a': {
+            set = @[
+                IJSVGShortFloatStringWithOptions(data[0], floatingPointOptions),
+                IJSVGShortFloatStringWithOptions(data[1], floatingPointOptions),
+                IJSVGShortFloatStringWithOptions(data[2], floatingPointOptions),
+                IJSVGShortFloatStringWithOptions(data[3], floatingPointOptions),
+                IJSVGShortFloatStringWithOptions(data[4], floatingPointOptions),
+                IJSVGShortFloatStringWithOptions(data[5], floatingPointOptions),
+                IJSVGShortFloatStringWithOptions(data[6], floatingPointOptions),
             ];
             break;
         }
@@ -187,13 +195,201 @@ void IJSVGExporterPathInstructionCommandFree(IJSVGExporterPathInstructionCommand
                                         objCType:@encode(IJSVGExporterPathInstructionCommand)];
         [pathInstructions addObject:value];
     }
-    return [self pathStringWithInstructionSet:pathInstructions];
+    return [self pathStringWithInstructionSet:pathInstructions
+                         floatingPointOptions:floatingPointOptions];
+}
+
+CGFloat IJSVGExporterPathFloatToFixed(CGFloat number, int precision)
+{
+    return floorf(pow(10, precision) * number) / pow(10, precision);
+}
+
+void IJSVGExporterPathInstructionRoundData(CGFloat* data, NSInteger length,
+    IJSVGFloatingPointOptions options)
+{
+    for (NSInteger i = length; i-- > 0;) {
+        CGFloat d = data[i];
+        CGFloat proposed = IJSVGExporterPathFloatToFixed(d, options.precision);
+        if (proposed != d) {
+            CGFloat rounded = +IJSVGExporterPathFloatToFixed(d, options.precision - 1);
+            data[i] = IJSVGExporterPathFloatToFixed(+fabs(rounded - d), options.precision + 1)
+                    >= kIJSVGExporterPathInstructionErrorThreshold
+                ? +IJSVGExporterPathFloatToFixed(d, options.precision)
+                : rounded;
+        }
+    }
+}
+
++ (void)convertInstructionsToRoundRelativeCoordinates:(NSArray<IJSVGExporterPathInstruction*>*)instructions
+                                 floatingPointOptions:(IJSVGFloatingPointOptions)floatingPointOptions
+{
+    CGFloat relSubPoint[2] = { 0.f, 0.f };
+    for (IJSVGExporterPathInstruction* instruction in instructions) {
+        char instructionChar = instruction.instruction;
+        NSInteger length = instruction.dataLength;
+        CGFloat* data = instruction.data;
+        if (strchr("mltqsc", instructionChar) != NULL) {
+            for (NSInteger i = length; i--;) {
+                data[i] += instruction.base[i % 2] - relSubPoint[i % 2];
+            }
+        } else if (instructionChar == 'h') {
+            data[0] += instruction.base[0] - relSubPoint[0];
+        } else if (instructionChar == 'v') {
+            data[0] += instruction.base[1] - relSubPoint[1];
+        } else if (instructionChar == 'a') {
+            data[5] += instruction.base[0] - relSubPoint[0];
+            data[5] += instruction.base[1] - relSubPoint[1];
+        }
+        IJSVGExporterPathInstructionRoundData(data, length, floatingPointOptions);
+        if (instructionChar == 'h') {
+            relSubPoint[0] += data[0];
+        } else if (instructionChar == 'v') {
+            relSubPoint[1] += data[0];
+        } else {
+            relSubPoint[0] += data[length - 2];
+            relSubPoint[1] += data[length - 1];
+        }
+        IJSVGExporterPathInstructionRoundData(relSubPoint, 2, floatingPointOptions);
+    }
+}
+
++ (void)convertInstructionsToMixedAbsoluteRelative:(NSArray<IJSVGExporterPathInstruction*>*)instructions
+                              floatingPointOptions:(IJSVGFloatingPointOptions)floatingPointOptions
+{
+    IJSVGExporterPathInstruction* prevInstruction = nil;
+    for (IJSVGExporterPathInstruction* instruction in instructions) {
+        if (prevInstruction == nil || instruction.dataLength == 0) {
+            prevInstruction = instruction;
+            continue;
+        }
+
+        char instructionChar = instruction.instruction;
+        CGFloat* data = instruction.data;
+        NSInteger length = instruction.dataLength;
+        CGFloat* adata = (CGFloat*)malloc(sizeof(CGFloat) * length);
+        memcpy(adata, data, sizeof(CGFloat) * length);
+
+        if (strchr("mltqsc", instructionChar) != NULL) {
+            for (NSInteger i = length; i--;) {
+                adata[i] += instruction.base[i % 2];
+            }
+        } else if (instructionChar == 'h') {
+            adata[0] += instruction.base[0];
+        } else if (instructionChar == 'v') {
+            adata[0] += instruction.base[1];
+        } else if (instructionChar == 'a') {
+            adata[5] += instruction.base[0];
+            adata[6] += instruction.base[1];
+        }
+
+        IJSVGExporterPathInstructionRoundData(adata, length, floatingPointOptions);
+
+        IJSVGExporterPathInstruction* ainstruction = nil;
+        ainstruction = [[[IJSVGExporterPathInstruction alloc] initWithInstruction:instructionChar
+                                                                        dataCount:length] autorelease];
+        memcpy(ainstruction.data, adata, sizeof(CGFloat) * length);
+
+        // run these through our default string runner
+        // to compare the outputs
+        NSString* orig = [self pathStringFromInstructions:@[ instruction ]
+                                     floatingPointOptions:floatingPointOptions];
+        NSString* comp = [self pathStringFromInstructions:@[ ainstruction ]
+                                     floatingPointOptions:floatingPointOptions];
+
+        if (comp.length < orig.length && !(instructionChar == prevInstruction.instruction && prevInstruction.instruction > 96 && comp.length == orig.length - 1 && data[0] < 0.f && fmod(prevInstruction.data[prevInstruction.dataLength - 1], 1) != 0.f)) {
+            instruction.instruction = toupper(instructionChar);
+            memcpy(data, adata, sizeof(CGFloat) * length);
+        }
+        (void)free(adata), adata = NULL;
+        prevInstruction = instruction;
+    }
+}
+
++ (void)convertInstructionsDataToRounded:(NSArray<IJSVGExporterPathInstruction*>*)instructions
+                    floatingPointOptions:(IJSVGFloatingPointOptions)floatingPointOptions
+{
+    for (IJSVGExporterPathInstruction* instruction in instructions) {
+        CGFloat* data = instruction.data;
+        IJSVGExporterPathInstructionRoundData(data, instruction.dataLength,
+            floatingPointOptions);
+    }
+}
+
++ (NSArray<IJSVGExporterPathInstruction*>*)convertInstructionsCurves:(NSArray<IJSVGExporterPathInstruction*>*)instructions
+                                                floatingPointOptions:(IJSVGFloatingPointOptions)floatingPointOptions
+{
+    NSMutableArray<IJSVGExporterPathInstruction*>* nInstructions = nil;
+    nInstructions = [[[NSMutableArray alloc] initWithCapacity:instructions.count] autorelease];
+    IJSVGExporterPathInstruction* lastInstruction = nil;
+    for (IJSVGExporterPathInstruction* instruction in instructions) {
+        lastInstruction = nInstructions.lastObject;
+        if (lastInstruction == nil) {
+            [nInstructions addObject:instruction];
+            continue;
+        }
+        if (instruction.instruction == 'c') {
+            if (lastInstruction.instruction == 'c' && instruction.data[0] == -(lastInstruction.data[2] - lastInstruction.data[4]) && instruction.data[1] == -(lastInstruction.data[3] - lastInstruction.data[5])) {
+                IJSVGExporterPathInstruction* nInstruction = nil;
+                nInstruction = [[[IJSVGExporterPathInstruction alloc] initWithInstruction:'s'
+                                                                                dataCount:4] autorelease];
+                nInstruction.data[0] = instruction.data[2];
+                nInstruction.data[1] = instruction.data[3];
+                nInstruction.data[2] = instruction.data[4];
+                nInstruction.data[3] = instruction.data[5];
+                [nInstructions addObject:nInstruction];
+                continue;
+            } else if (lastInstruction.instruction == 's' && instruction.data[0] == -(lastInstruction.data[0] - lastInstruction.data[2]) && instruction.data[1] == -(lastInstruction.data[1] - lastInstruction.data[3])) {
+                IJSVGExporterPathInstruction* nInstruction = nil;
+                nInstruction = [[[IJSVGExporterPathInstruction alloc] initWithInstruction:'s'
+                                                                                dataCount:4] autorelease];
+                nInstruction.data[0] = instruction.data[2];
+                nInstruction.data[1] = instruction.data[3];
+                nInstruction.data[2] = instruction.data[4];
+                nInstruction.data[3] = instruction.data[5];
+                [nInstructions addObject:nInstruction];
+                continue;
+            } else if (lastInstruction.instruction != 'c' && lastInstruction.instruction != 's' && instruction.data[0] == 0.f && instruction.data[1] == 0.f) {
+                IJSVGExporterPathInstruction* nInstruction = nil;
+                nInstruction = [[[IJSVGExporterPathInstruction alloc] initWithInstruction:'s'
+                                                                                dataCount:4] autorelease];
+                nInstruction.data[0] = instruction.data[2];
+                nInstruction.data[1] = instruction.data[3];
+                nInstruction.data[2] = instruction.data[4];
+                nInstruction.data[3] = instruction.data[5];
+                [nInstructions addObject:nInstruction];
+                continue;
+            }
+        } else if (instruction.instruction == 'q') {
+            if (lastInstruction.instruction == 'q' && instruction.data[0] == (lastInstruction.data[2] - lastInstruction.data[0]) && instruction.data[1] == (lastInstruction.data[3] - lastInstruction.data[1])) {
+                IJSVGExporterPathInstruction* nInstruction = nil;
+                nInstruction = [[[IJSVGExporterPathInstruction alloc] initWithInstruction:'t'
+                                                                                dataCount:2] autorelease];
+                nInstruction.data[0] = instruction.data[2];
+                nInstruction.data[1] = instruction.data[3];
+                [nInstructions addObject:nInstruction];
+                continue;
+            } else if (lastInstruction.instruction == 't' && instruction.data[2] == lastInstruction.data[0] && instruction.data[3] == lastInstruction.data[1]) {
+                IJSVGExporterPathInstruction* nInstruction = nil;
+                nInstruction = [[[IJSVGExporterPathInstruction alloc] initWithInstruction:'t'
+                                                                                dataCount:2] autorelease];
+                nInstruction.data[0] = instruction.data[2];
+                nInstruction.data[1] = instruction.data[3];
+                [nInstructions addObject:nInstruction];
+                continue;
+            }
+        }
+        [nInstructions addObject:instruction];
+    }
+    return nInstructions;
 }
 
 + (void)convertInstructionsToRelativeCoordinates:(NSArray<IJSVGExporterPathInstruction*>*)instructions
+                            floatingPointOptions:(IJSVGFloatingPointOptions)floatingPointOptions
 {
     CGFloat point[2] = { 0, 0 };
     CGFloat subpathPoint[2] = { 0, 0 };
+    IJSVGExporterPathInstruction* baseInstruction = nil;
+    IJSVGExporterPathInstruction* prevInstruction = nil;
 
     NSInteger index = 0;
     for (IJSVGExporterPathInstruction* anInstruction in instructions) {
@@ -212,6 +408,8 @@ void IJSVGExporterPathInstructionCommandFree(IJSVGExporterPathInstructionCommand
                 if (instruction == 'm') {
                     subpathPoint[0] = point[0];
                     subpathPoint[1] = point[1];
+
+                    baseInstruction = anInstruction;
                 }
 
             } else if (instruction == 'h') {
@@ -232,8 +430,8 @@ void IJSVGExporterPathInstructionCommandFree(IJSVGExporterPathInstructionCommand
                 subpathPoint[0] = point[0] += data[0];
                 subpathPoint[1] = point[1] += data[1];
 
+                baseInstruction = anInstruction;
             } else if (instruction == 'L' || instruction == 'T') {
-
                 instruction = tolower(instruction);
 
                 data[0] -= point[0];
@@ -241,9 +439,7 @@ void IJSVGExporterPathInstructionCommandFree(IJSVGExporterPathInstructionCommand
 
                 point[0] += data[0];
                 point[1] += data[1];
-
             } else if (instruction == 'C') {
-
                 instruction = 'c';
 
                 data[0] -= point[0];
@@ -255,9 +451,7 @@ void IJSVGExporterPathInstructionCommandFree(IJSVGExporterPathInstructionCommand
 
                 point[0] += data[4];
                 point[1] += data[5];
-
             } else if (instruction == 'S' || instruction == 'Q') {
-
                 instruction = tolower(instruction);
 
                 data[0] -= point[0];
@@ -267,9 +461,7 @@ void IJSVGExporterPathInstructionCommandFree(IJSVGExporterPathInstructionCommand
 
                 point[0] += data[2];
                 point[1] += data[3];
-
             } else if (instruction == 'A') {
-
                 instruction = 'a';
 
                 data[5] -= point[0];
@@ -277,38 +469,51 @@ void IJSVGExporterPathInstructionCommandFree(IJSVGExporterPathInstructionCommand
 
                 point[0] += data[5];
                 point[1] += data[6];
-
             } else if (instruction == 'H') {
-
                 instruction = 'h';
 
                 data[0] -= point[0];
-
                 point[0] += data[0];
-
             } else if (instruction == 'V') {
-
                 instruction = 'v';
 
                 data[0] -= point[1];
-
                 point[1] += data[0];
             }
 
             // reset the instruction
-            [anInstruction setInstruction:instruction];
+            anInstruction.instruction = instruction;
+            CGFloat* coords = anInstruction.coords;
+            coords[0] = point[0];
+            coords[1] = point[1];
 
         } else if (instruction == 'Z' || instruction == 'z') {
+            if (baseInstruction != nil) {
+                CGFloat* coords = anInstruction.coords;
+                coords[0] = baseInstruction.coords[0];
+                coords[1] = baseInstruction.coords[1];
+            }
             point[0] = subpathPoint[0];
             point[1] = subpathPoint[1];
         }
 
+        CGFloat* base = anInstruction.base;
+        if (prevInstruction != nil) {
+            base[0] = prevInstruction.coords[0];
+            base[1] = prevInstruction.coords[1];
+        } else {
+            base[0] = 0.f;
+            base[1] = 0.f;
+        }
+
         // increment index
+        prevInstruction = anInstruction;
         index++;
     }
 }
 
 + (NSArray<IJSVGExporterPathInstruction*>*)instructionsFromPath:(CGPathRef)path
+                                           floatingPointOptions:(IJSVGFloatingPointOptions)floatingPointOptions
 {
 
     // keep track of the current point
@@ -378,6 +583,7 @@ void IJSVGExporterPathInstructionCommandFree(IJSVGExporterPathInstructionCommand
             CGPoint controlPoint1 = pathElement->points[0];
             CGPoint controlPoint2 = pathElement->points[1];
             CGPoint point = pathElement->points[2];
+
             currentPoint = point;
             instruction = [[[IJSVGExporterPathInstruction alloc] initWithInstruction:'C'
                                                                            dataCount:6] autorelease];

Framework/IJSVG/IJSVG/Source/Layers/IJSVGGradientLayer.h

@@ -6,9 +6,9 @@
 //  Copyright © 2016 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGGradient.h"
+#import <IJSVG/IJSVGGradient.h>
-#import "IJSVGLayer.h"
+#import <IJSVG/IJSVGLayer.h>
-#import "IJSVGPath.h"
+#import <IJSVG/IJSVGPath.h>
 #import <QuartzCore/QuartzCore.h>
 
 @interface IJSVGGradientLayer : IJSVGLayer {

Framework/IJSVG/IJSVG/Source/Layers/IJSVGGradientLayer.m

@@ -10,14 +10,9 @@
 
 @implementation IJSVGGradientLayer
 
-@synthesize viewBox;
-@synthesize gradient;
-@synthesize absoluteTransform;
-@synthesize objectRect;
-
 - (void)dealloc
 {
-    (void)([gradient release]), gradient = nil;
+    (void)([_gradient release]), _gradient = nil;
     [super dealloc];
 }
 
@@ -32,17 +27,17 @@
 
 - (void)setGradient:(IJSVGGradient*)newGradient
 {
-    if (gradient != nil) {
+    if (_gradient != nil) {
-        (void)([gradient release]), gradient = nil;
+        (void)([_gradient release]), _gradient = nil;
     }
-    gradient = [newGradient retain];
+    _gradient = [newGradient retain];
 
     // lets check its alpha properties on the colors
     BOOL hasAlphaChannel = NO;
-    NSInteger stops = gradient.gradient.numberOfColorStops;
+    NSInteger stops = _gradient.gradient.numberOfColorStops;
     for (NSInteger i = 0; i < stops; i++) {
         NSColor* color = nil;
-        [gradient.gradient getColor:&color
+        [_gradient.gradient getColor:&color
                            location:NULL
                             atIndex:i];
         if (color.alphaComponent != 1.f) {
@@ -89,12 +84,12 @@
     }
 
     // draw the gradient
-    CGAffineTransform trans = CGAffineTransformMakeTranslation(-CGRectGetMinX(objectRect),
+    CGAffineTransform trans = CGAffineTransformMakeTranslation(-CGRectGetMinX(_objectRect),
-        -CGRectGetMinY(objectRect));
+                                                               -CGRectGetMinY(_objectRect));
-    CGAffineTransform transform = CGAffineTransformConcat(absoluteTransform, trans);
+    CGAffineTransform transform = CGAffineTransformConcat(_absoluteTransform, trans);
     CGContextSaveGState(ctx);
     [self.gradient drawInContextRef:ctx
-                         objectRect:objectRect
+                         objectRect:_objectRect
                   absoluteTransform:transform
                            viewPort:self.viewBox];
     CGContextRestoreGState(ctx);

Framework/IJSVG/IJSVG/Source/Layers/IJSVGGroupLayer.h

@@ -6,8 +6,8 @@
 //  Copyright © 2017 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGLayer.h"
+#import <IJSVG/IJSVGLayer.h>
-#import "IJSVGShapeLayer.h"
+#import <IJSVG/IJSVGShapeLayer.h>
 #import <QuartzCore/QuartzCore.h>
 
 @interface IJSVGGroupLayer : IJSVGLayer

Framework/IJSVG/IJSVG/Source/Layers/IJSVGImageLayer.h

@@ -6,7 +6,7 @@
 //  Copyright © 2017 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGLayer.h"
+#import <IJSVG/IJSVGLayer.h>
 #import <AppKit/AppKit.h>
 #import <QuartzCore/QuartzCore.h>
 

Framework/IJSVG/IJSVG/Source/Layers/IJSVGLayer.h

@@ -6,8 +6,8 @@
 //  Copyright © 2017 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGRendering.h"
+#import <IJSVG/IJSVGRendering.h>
-#import "IJSVGTransaction.h"
+#import <IJSVG/IJSVGTransaction.h>
 #import <QuartzCore/QuartzCore.h>
 
 @class IJSVGShapeLayer;
@@ -36,7 +36,7 @@
 
 + (NSArray*)deepestSublayersOfLayer:(CALayer*)layer;
 + (void)recursivelyWalkLayer:(CALayer*)layer
-                   withBlock:(void (^)(CALayer* layer, BOOL isMask))block;
+                   withBlock:(void (^)(CALayer* layer, BOOL isMask, BOOL* stop))block;
 
 - (void)applySublayerMaskToContext:(CGContextRef)context
                        forSublayer:(IJSVGLayer*)sublayer

Framework/IJSVG/IJSVG/Source/Layers/IJSVGLayer.m

@@ -13,19 +13,8 @@
 
 @implementation IJSVGLayer
 
-@synthesize gradientFillLayer;
-@synthesize patternFillLayer;
-@synthesize gradientStrokeLayer;
-@synthesize patternStrokeLayer;
-@synthesize strokeLayer;
-@synthesize requiresBackingScaleHelp;
-@synthesize backingScaleFactor;
-@synthesize blendingMode;
-@synthesize convertMasksToPaths;
-
 - (void)dealloc
 {
-    self.contents = nil;
     (void)([_maskingLayer release]), _maskingLayer = nil;
     [super dealloc];
 }
@@ -45,14 +34,21 @@
 }
 
 + (void)recursivelyWalkLayer:(CALayer*)layer
-                   withBlock:(void (^)(CALayer* layer, BOOL isMask))block
+                   withBlock:(void (^)(CALayer* layer, BOOL isMask, BOOL* stop))block
 {
     // call for layer and mask if there is one
-    block(layer, NO);
+    BOOL stop = NO;
+    block(layer, NO, &stop);
+    if(stop == YES) {
+        return;
+    }
 
     // do the mask too!
     if (layer.mask != nil) {
-        block(layer.mask, YES);
+        block(layer.mask, YES, &stop);
+        if(stop == YES) {
+            return;
+        }
     }
 
     // sublayers!!
@@ -64,10 +60,10 @@
 
 - (void)setBackingScaleFactor:(CGFloat)newFactor
 {
-    if (self.backingScaleFactor == newFactor) {
+    if (_backingScaleFactor == newFactor) {
         return;
     }
-    backingScaleFactor = newFactor;
+    _backingScaleFactor = newFactor;
     self.contentsScale = newFactor;
     self.rasterizationScale = newFactor;
     [self setNeedsDisplay];
@@ -75,7 +71,7 @@
 
 - (void)_customRenderInContext:(CGContextRef)ctx
 {
-    if (self.convertMasksToPaths == YES && _maskingLayer != nil) {
+    if (_convertMasksToPaths == YES && _maskingLayer != nil) {
         CGContextSaveGState(ctx);
         [self applySublayerMaskToContext:ctx
                              forSublayer:(IJSVGLayer*)self
@@ -89,10 +85,10 @@
 
 - (void)setConvertMasksToPaths:(BOOL)flag
 {
-    if (convertMasksToPaths == flag) {
+    if (_convertMasksToPaths == flag) {
         return;
     }
-    convertMasksToPaths = flag;
+    _convertMasksToPaths = flag;
     if (flag == YES) {
         if (_maskingLayer != nil) {
             (void)([_maskingLayer release]), _maskingLayer = nil;
@@ -152,9 +148,9 @@
 
 - (void)renderInContext:(CGContextRef)ctx
 {
-    if (self.blendingMode != kCGBlendModeNormal) {
+    if (_blendingMode != kCGBlendModeNormal) {
         CGContextSaveGState(ctx);
-        CGContextSetBlendMode(ctx, self.blendingMode);
+        CGContextSetBlendMode(ctx, _blendingMode);
         [self _customRenderInContext:ctx];
         CGContextRestoreGState(ctx);
         return;

Framework/IJSVG/IJSVG/Source/Layers/IJSVGPatternLayer.m

@@ -10,13 +10,10 @@
 
 @implementation IJSVGPatternLayer
 
-@synthesize pattern;
-@synthesize patternNode;
-
 - (void)dealloc
 {
-    (void)([pattern release]), pattern = nil;
+    (void)([_pattern release]), _pattern = nil;
-    (void)([patternNode release]), patternNode = nil;
+    (void)([_patternNode release]), _patternNode = nil;
     [super dealloc];
 }
 
@@ -50,8 +47,8 @@ void IJSVGPatternDrawingCallBack(void* info, CGContextRef ctx)
     CGRect rect = self.bounds;
     CGPatternRef ref = CGPatternCreate((void*)self, self.bounds,
         CGAffineTransformIdentity,
-        roundf(rect.size.width * self.patternNode.width.value),
+        roundf(rect.size.width * _patternNode.width.value),
-        roundf(rect.size.height * self.patternNode.height.value),
+        roundf(rect.size.height * _patternNode.height.value),
         kCGPatternTilingConstantSpacing,
         true, &callbacks);
 

Framework/IJSVG/IJSVG/Source/Layers/IJSVGShapeLayer.h

@@ -6,8 +6,8 @@
 //  Copyright © 2017 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGLayer.h"
+#import <IJSVG/IJSVGLayer.h>
-#import "IJSVGUtils.h"
+#import <IJSVG/IJSVGUtils.h>
 #import <QuartzCore/QuartzCore.h>
 
 @interface IJSVGShapeLayer : CAShapeLayer {

Framework/IJSVG/IJSVG/Source/Layers/IJSVGShapeLayer.m

@@ -11,22 +11,8 @@
 
 @implementation IJSVGShapeLayer
 
-@synthesize gradientFillLayer;
-@synthesize patternFillLayer;
-@synthesize gradientStrokeLayer;
-@synthesize patternStrokeLayer;
-@synthesize strokeLayer;
-@synthesize requiresBackingScaleHelp;
-@synthesize backingScaleFactor;
-@synthesize blendingMode;
-@synthesize convertMasksToPaths;
-@synthesize originalPathOrigin;
-@synthesize renderQuality;
-@synthesize primitiveType;
-
 - (void)dealloc
 {
-    self.contents = nil;
     (void)([_maskingLayer release]), _maskingLayer = nil;
     [super dealloc];
 }
@@ -36,7 +22,7 @@
     if (self.backingScaleFactor == newFactor) {
         return;
     }
-    backingScaleFactor = newFactor;
+    _backingScaleFactor = newFactor;
     self.contentsScale = newFactor;
     self.rasterizationScale = newFactor;
     [self setNeedsDisplay];
@@ -58,10 +44,10 @@
 
 - (void)setConvertMasksToPaths:(BOOL)flag
 {
-    if (convertMasksToPaths == flag) {
+    if (_convertMasksToPaths == flag) {
         return;
     }
-    convertMasksToPaths = flag;
+    _convertMasksToPaths = flag;
     if (flag == YES) {
         if (_maskingLayer != nil) {
             (void)([_maskingLayer release]), _maskingLayer = nil;

Framework/IJSVG/IJSVG/Source/Nodes/IJSVGDef.h

@@ -6,7 +6,7 @@
 //  Copyright (c) 2014 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGNode.h"
+#import <IJSVG/IJSVGNode.h>
 #import <Foundation/Foundation.h>
 
 @interface IJSVGDef : NSObject {

Framework/IJSVG/IJSVG/Source/Nodes/IJSVGForeignObject.h

@@ -7,14 +7,11 @@
 //
 
 #import <Foundation/Foundation.h>
-#import "IJSVGNode.h"
+#import <IJSVG/IJSVGNode.h>
 
 @interface IJSVGForeignObject : IJSVGNode {
-
-    NSString * requiredExtension;
-    
 }
 
-@property ( nonatomic, copy ) NSString * requiredExtension;
+@property (nonatomic, copy) NSString* requiredExtension;
 
 @end

Framework/IJSVG/IJSVG/Source/Nodes/IJSVGForeignObject.m

@@ -10,11 +10,9 @@
 
 @implementation IJSVGForeignObject
 
-@synthesize requiredExtension;
-
 - (void)dealloc
 {
-    (void)([requiredExtension release]), requiredExtension = nil;
+    (void)([_requiredExtension release]), _requiredExtension = nil;
     [super dealloc];
 }
 

Framework/IJSVG/IJSVG/Source/Nodes/IJSVGGradient.h

@@ -6,12 +6,13 @@
 //  Copyright (c) 2014 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGColorList.h"
+#import <IJSVG/IJSVGColorList.h>
-#import "IJSVGDef.h"
+#import <IJSVG/IJSVGDef.h>
-#import "IJSVGTransform.h"
+#import <IJSVG/IJSVGTransform.h>
+#import <IJSVG/IJSVGGroup.h>
 #import <Foundation/Foundation.h>
 
-@interface IJSVGGradient : IJSVGNode
+@interface IJSVGGradient : IJSVGGroup
 
 @property (nonatomic, retain) NSGradient* gradient;
 @property (nonatomic, assign) CGGradientRef CGGradient;
@@ -21,8 +22,9 @@
 @property (nonatomic, retain) IJSVGUnitLength* y2;
 @property (nonatomic, retain) IJSVGColorList* colorList;
 
-+ (CGFloat*)computeColorStopsFromString:(NSXMLElement*)element
++ (CGFloat*)computeColorStops:(IJSVGGradient*)gradient
-                                 colors:(NSArray**)someColors;
+                       colors:(NSArray**)someColors;
+
 - (CGGradientRef)CGGradient;
 - (void)drawInContextRef:(CGContextRef)ctx
               objectRect:(NSRect)objectRect
@@ -33,6 +35,7 @@
                 end:(CGPoint)endPoint
             context:(CGContextRef)ctx;
 
+- (IJSVGColorList*)colorList;
 - (IJSVGColorList*)computedColorList;
 
 @end

Framework/IJSVG/IJSVG/Source/Nodes/IJSVGGradient.m

@@ -7,23 +7,22 @@
 //
 
 #import "IJSVGGradient.h"
+#import "IJSVGParser.h"
 
 @implementation IJSVGGradient
 
-@synthesize gradient, CGGradient;
+@synthesize colorList = _privateColorList;
-@synthesize x1, x2, y1, y2;
-@synthesize colorList = _colorList;
 
 - (void)dealloc
 {
-    (void)([x1 release]), x1 = nil;
+    (void)([_x1 release]), _x1 = nil;
-    (void)([x2 release]), x2 = nil;
+    (void)([_x2 release]), _x2 = nil;
-    (void)([y1 release]), y1 = nil;
+    (void)([_y1 release]), _y1 = nil;
-    (void)([y2 release]), y2 = nil;
+    (void)([_y2 release]), _y2 = nil;
-    (void)([gradient release]), gradient = nil;
+    (void)([_gradient release]), _gradient = nil;
-    (void)([_colorList release]), _colorList = nil;
+    (void)([_privateColorList release]), _privateColorList = nil;
-    if (CGGradient != nil) {
+    if (_CGGradient != nil) {
-        CGGradientRelease(CGGradient);
+        CGGradientRelease(_CGGradient);
     }
     [super dealloc];
 }
@@ -37,84 +36,41 @@
 
 - (void)setColorList:(IJSVGColorList*)list
 {
-    (void)([_colorList release]), _colorList = nil;
+    (void)([_privateColorList release]), _privateColorList = nil;
-    _colorList = list.retain;
+    _privateColorList = list.retain;
-    if (CGGradient != nil) {
+    if (_CGGradient != nil) {
-        CGGradientRelease(CGGradient);
+        CGGradientRelease(_CGGradient);
+        _CGGradient = nil;
     }
 }
 
-+ (CGFloat*)computeColorStopsFromString:(NSXMLElement*)element
++ (CGFloat *)computeColorStops:(IJSVGGradient*)gradient
-                                 colors:(NSArray**)someColors
+                        colors:(NSArray**)someColors
 {
-    // find each stop element
+    NSArray<IJSVGNode*>* stops = gradient.childNodes;
-    NSArray* stops = [element children];
     NSMutableArray* colors = [[[NSMutableArray alloc] initWithCapacity:stops.count] autorelease];
     CGFloat* stopsParams = (CGFloat*)malloc(stops.count * sizeof(CGFloat));
+    
     NSInteger i = 0;
-    for (NSXMLElement* stop in stops) {
+    for(IJSVGNode* stopNode in stops) {
-        // find the offset
+        NSColor* color = stopNode.fillColor;
-        CGFloat offset = [stop attributeForName:@"offset"].stringValue.floatValue;
+        CGFloat opacity = stopNode.fillOpacity.value;
-        if (offset > 1.f) {
+        CGFloat offset = stopNode.offset.value;
-            offset /= 100.f;
-        }
-
         stopsParams[i++] = offset;
-
+        if(color == nil) {
-        // find the stop opacity
+            color = [IJSVGColor colorFromHEXInteger:0x000000];
-        CGFloat stopOpacity = 1.f;
+            if(opacity != 1.f) {
-        NSXMLNode* stopOpacityAttribute = [stop attributeForName:@"stop-opacity"];
+                color = [IJSVGColor changeAlphaOnColor:color
-        if (stopOpacityAttribute != nil) {
+                                                    to:opacity];
-            stopOpacity = stopOpacityAttribute.stringValue.floatValue;
-        }
-
-        // find the stop color
-        NSString* scs = [stop attributeForName:@"stop-color"].stringValue;
-        NSColor* stopColor = [IJSVGColor colorFromString:scs];
-        if (stopColor != nil && stopOpacity != 1.f) {
-            stopColor = [IJSVGColor changeAlphaOnColor:stopColor
-                                                    to:stopOpacity];
-        }
-
-        // compute any style that there was...
-        NSXMLNode* styleAttribute = [stop attributeForName:@"style"];
-        if (styleAttribute != nil) {
-
-            IJSVGStyle* style = [IJSVGStyle parseStyleString:styleAttribute.stringValue];
-            NSColor* color = [IJSVGColor colorFromString:[style property:@"stop-color"]];
-
-            // we have a color!
-            if (color != nil) {
-                // is there a stop opacity?
-                NSString* numberString = nil;
-                if ((numberString = [style property:@"stop-opacity"]) != nil) {
-                    color = [IJSVGColor changeAlphaOnColor:color
-                                                        to:numberString.floatValue];
-                } else {
-                    color = [IJSVGColor changeAlphaOnColor:color
-                                                        to:stopOpacity];
-                }
-                stopColor = color;
             }
         }
-
+        [colors addObject:color];
-        // default is black
-        if (stopColor == nil) {
-            stopColor = [IJSVGColor colorFromString:@"black"];
-            if (stopOpacity != 1.f) {
-                stopColor = [IJSVGColor changeAlphaOnColor:stopColor
-                                                        to:stopOpacity];
-            }
-        }
-
-        // add the stop color
-        [(NSMutableArray*)colors addObject:stopColor];
     }
-    *someColors = colors;
+    *someColors = (NSArray*)colors;
     return stopsParams;
 }
 
-- (IJSVGColorList*)computedColorList
+- (IJSVGColorList*)colorList
 {
     IJSVGColorList* sheet = [[[IJSVGColorList alloc] init] autorelease];
     NSInteger num = self.gradient.numberOfColorStops;
@@ -123,16 +79,23 @@
         [self.gradient getColor:&color
                        location:nil
                         atIndex:i];
-        [sheet addColor:color];
+        IJSVGColorType* type = [IJSVGColorType typeWithColor:color
+                                                        flags:IJSVGColorTypeFlagStop];
+        [sheet addColor:type];
     }
     return sheet;
 }
 
+- (IJSVGColorList*)computedColorList
+{
+    return _privateColorList;
+}
+
 - (CGGradientRef)CGGradient
 {
     // store it in the cache
-    if (CGGradient != nil) {
+    if (_CGGradient != nil) {
-        return CGGradient;
+        return _CGGradient;
     }
 
     // actually create the gradient
@@ -145,8 +108,8 @@
         [self.gradient getColor:&color
                        location:&locations[i]
                         atIndex:i];
-        if (_colorList != nil) {
+        if (_privateColorList != nil) {
-            color = [_colorList proposedColorForColor:color];
+            color = [_privateColorList proposedColorForColor:color];
         }
         CFArrayAppendValue(colors, color.CGColor);
     }
@@ -154,7 +117,7 @@
         colors, locations);
     CFRelease(colors);
     free(locations);
-    return CGGradient = result;
+    return _CGGradient = result;
 }
 
 - (void)drawInContextRef:(CGContextRef)ctx

Framework/IJSVG/IJSVG/Source/Nodes/IJSVGGroup.h

@@ -6,17 +6,18 @@
 //  Copyright (c) 2014 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGNode.h"
+#import <IJSVG/IJSVGNode.h>
-#import "IJSVGPath.h"
+#import <IJSVG/IJSVGPath.h>
 #import <Foundation/Foundation.h>
 
 @interface IJSVGGroup : IJSVGNode {
 
-    NSMutableArray* children;
+@private
+    NSMutableArray<IJSVGNode*>* _childNodes;
 }
 
-- (void)addChild:(id)child;
+- (void)addChild:(IJSVGNode*)child;
-- (NSArray*)children;
+- (NSArray<IJSVGNode*>*)childNodes;
 - (void)purgeChildren;
 
 @end

Framework/IJSVG/IJSVG/Source/Nodes/IJSVGGroup.m

@@ -12,21 +12,24 @@
 
 - (void)dealloc
 {
-    (void)([children release]), children = nil;
+    (void)([_childNodes release]), _childNodes = nil;
     [super dealloc];
 }
 
 - (id)init
 {
     if ((self = [super init]) != nil) {
-        children = [[NSMutableArray alloc] init];
+        _childNodes = [[NSMutableArray alloc] init];
     }
     return self;
 }
 
 - (void)prepareFromCopy
 {
-    children = [[NSMutableArray alloc] init];
+    if(_childNodes != nil) {
+        (void)[_childNodes release], _childNodes = nil;
+    }
+    _childNodes = [[NSMutableArray alloc] init];
 }
 
 - (id)copyWithZone:(NSZone*)zone
@@ -34,7 +37,7 @@
     IJSVGGroup* node = [super copyWithZone:zone];
     [node prepareFromCopy];
 
-    for (IJSVGNode* childNode in self.children) {
+    for (IJSVGNode* childNode in _childNodes) {
         childNode = [[childNode copy] autorelease];
         childNode.parentNode = node;
         [node addChild:childNode];
@@ -44,23 +47,25 @@
 
 - (void)purgeChildren
 {
-    [children removeAllObjects];
+    [_childNodes removeAllObjects];
 }
 
-- (void)addChild:(id)child
+- (void)addChild:(IJSVGNode*)child
 {
-    if (child != nil)
+    if (child != nil) {
-        [children addObject:child];
+        [_childNodes addObject:child];
+    }
 }
 
-- (NSArray*)children
+- (NSArray<IJSVGNode*>*)childNodes
 {
-    return children;
+    return _childNodes;
 }
 
 - (NSString*)description
 {
-    return [NSString stringWithFormat:@"%@ - %@", [super description], self.children];
+    return [NSString stringWithFormat:@"%@ - %@",
+            [super description], self.childNodes];
 }
 
 @end

Framework/IJSVG/IJSVG/Source/Nodes/IJSVGImage.h

@@ -6,7 +6,7 @@
 //  Copyright © 2016 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGNode.h"
+#import <IJSVG/IJSVGNode.h>
 #import <Foundation/Foundation.h>
 
 @class IJSVGPath;
@@ -21,6 +21,7 @@
 - (CGImageRef)CGImage;
 - (void)drawInContextRef:(CGContextRef)context
                     path:(IJSVGPath*)path;
-- (void)loadFromBase64EncodedString:(NSString*)encodedString;
+- (void)loadFromString:(NSString*)encodedString;
+- (void)loadFromURL:(NSURL*)aURL;
 
 @end

Framework/IJSVG/IJSVG/Source/Nodes/IJSVGImage.m

@@ -20,7 +20,7 @@
     [super dealloc];
 }
 
-- (void)loadFromBase64EncodedString:(NSString*)encodedString
+- (void)loadFromString:(NSString*)encodedString
 {
     if ([encodedString hasPrefix:@"data:"]) {
         encodedString = [encodedString stringByReplacingOccurrencesOfString:@"\\s+"
@@ -28,8 +28,15 @@
                                                                     options:NSRegularExpressionSearch
                                                                       range:NSMakeRange(0, encodedString.length)];
     }
-    NSURL* URL = [NSURL URLWithString:encodedString];
+    NSURL* url = [NSURL URLWithString:encodedString];
-    NSData* data = [NSData dataWithContentsOfURL:URL];
+    if(url != nil) {
+        [self loadFromURL:url];
+    }
+}
+
+- (void)loadFromURL:(NSURL*)aURL
+{
+    NSData* data = [NSData dataWithContentsOfURL:aURL];
 
     // no data, just ignore...invalid probably
     if (data == nil) {
@@ -46,7 +53,8 @@
     if (imagePath == nil) {
         // lazy load the path as it might not be needed
         imagePath = [[IJSVGPath alloc] init];
-        [imagePath.path appendBezierPathWithRect:NSMakeRect(0.f, 0.f, self.width.value, self.height.value)];
+        CGRect rect = CGRectMake(0.f, 0.f, self.width.value, self.height.value);
+        CGPathAddRect(imagePath.path, NULL, rect);
         [imagePath close];
     }
     return imagePath;
@@ -92,7 +100,7 @@
         path = [self path];
     }
 
-    CGRect rect = path.path.bounds;
+    CGRect rect = path.pathBoundingBox;
     CGRect bounds = CGRectMake(0.f, 0.f, rect.size.width, rect.size.height);
 
     // save the state of the context

Framework/IJSVG/IJSVG/Source/Nodes/IJSVGLinearGradient.h

@@ -6,7 +6,7 @@
 //  Copyright (c) 2014 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGGradient.h"
+#import <IJSVG/IJSVGGradient.h>
 #import <Foundation/Foundation.h>
 
 @interface IJSVGLinearGradient : IJSVGGradient

Framework/IJSVG/IJSVG/Source/Nodes/IJSVGLinearGradient.m

@@ -8,6 +8,7 @@
 
 #import "IJSVGLinearGradient.h"
 #import "IJSVGUtils.h"
+#import "IJSVGParser.h"
 
 @implementation IJSVGLinearGradient
 
@@ -15,10 +16,10 @@
                     gradient:(IJSVGLinearGradient*)aGradient
 {
     // just ask unit for the value
-    NSString* x1 = ([element attributeForName:@"x1"].stringValue ?: @"0");
+    NSString* x1 = ([element attributeForName:IJSVGAttributeX1].stringValue ?: @"0");
-    NSString* x2 = ([element attributeForName:@"x2"].stringValue ?: @"100%");
+    NSString* x2 = ([element attributeForName:IJSVGAttributeX2].stringValue ?: @"100%");
-    NSString* y1 = ([element attributeForName:@"y1"].stringValue ?: @"0");
+    NSString* y1 = ([element attributeForName:IJSVGAttributeY1].stringValue ?: @"0");
-    NSString* y2 = ([element attributeForName:@"y2"].stringValue ?: @"0");
+    NSString* y2 = ([element attributeForName:IJSVGAttributeY2].stringValue ?: @"0");
     aGradient.x1 = [IJSVGGradientUnitLength unitWithString:x1 fromUnitType:aGradient.units];
     aGradient.x2 = [IJSVGGradientUnitLength unitWithString:x2 fromUnitType:aGradient.units];
     aGradient.y1 = [IJSVGGradientUnitLength unitWithString:y1 fromUnitType:aGradient.units];
@@ -26,8 +27,8 @@
 
     // compute the color stops and colours
     NSArray* colors = nil;
-    CGFloat* stopsParams = [self.class computeColorStopsFromString:element
+    CGFloat* stopsParams = [self.class computeColorStops:aGradient
-                                                            colors:&colors];
+                                                  colors:&colors];
 
     // create the gradient with the colours
     NSGradient* grad = [[NSGradient alloc] initWithColors:colors

Framework/IJSVG/IJSVG/Source/Nodes/IJSVGNode.h

@@ -6,11 +6,12 @@
 //  Copyright (c) 2014 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGStyle.h"
+#import <IJSVG/IJSVGStyle.h>
-#import "IJSVGUnitLength.h"
+#import <IJSVG/IJSVGUnitLength.h>
 #import <AppKit/AppKit.h>
 #import <Foundation/Foundation.h>
 
+@class IJSVGNode;
 @class IJSVG;
 @class IJSVGGroup;
 @class IJSVGDef;
@@ -19,6 +20,8 @@
 @class IJSVGPattern;
 @class IJSVGTransform;
 
+typedef void (^IJSVGNodeWalkHandler)(IJSVGNode* node, BOOL* allowChildNodes, BOOL* stop);
+
 typedef NS_ENUM(NSInteger, IJSVGNodeType) {
     IJSVGNodeTypeGroup,
     IJSVGNodeTypePath,
@@ -43,6 +46,9 @@ typedef NS_ENUM(NSInteger, IJSVGNodeType) {
     IJSVGNodeTypeTextSpan,
     IJSVGNodeTypeStyle,
     IJSVGNodeTypeSwitch,
+    IJSVGNodeTypeTitle,
+    IJSVGNodeTypeDesc,
+    IJSVGNodeTypeStop,
     IJSVGNodeTypeNotFound,
 };
 
@@ -93,10 +99,17 @@ typedef NS_ENUM(NSInteger, IJSVGBlendMode) {
     IJSVGBlendModeLuminosity = kCGBlendModeLuminosity
 };
 
+typedef NS_ENUM(NSInteger, IJSVGOverflowVisibility) {
+    IJSVGOverflowVisibilityHidden,
+    IJSVGOverflowVisibilityVisible
+};
+
 static CGFloat IJSVGInheritedFloatValue = -99.9999991;
 
 @interface IJSVGNode : NSObject <NSCopying>
 
+@property (nonatomic, copy) NSString* title;
+@property (nonatomic, copy) NSString* desc;
 @property (nonatomic, assign) IJSVGNodeType type;
 @property (nonatomic, copy) NSString* name;
 @property (nonatomic, copy) NSString* className;
@@ -112,6 +125,7 @@ static CGFloat IJSVGInheritedFloatValue = -99.9999991;
 @property (nonatomic, retain) IJSVGUnitLength* fillOpacity;
 @property (nonatomic, retain) IJSVGUnitLength* strokeOpacity;
 @property (nonatomic, retain) IJSVGUnitLength* strokeWidth;
+@property (nonatomic, retain) IJSVGUnitLength* offset;
 @property (nonatomic, retain) NSColor* fillColor;
 @property (nonatomic, retain) NSColor* strokeColor;
 @property (nonatomic, copy) NSString* identifier;
@@ -135,6 +149,10 @@ static CGFloat IJSVGInheritedFloatValue = -99.9999991;
 @property (nonatomic, assign) IJSVGUnitType contentUnits;
 @property (nonatomic, assign) IJSVGUnitType units;
 @property (nonatomic, assign) IJSVGBlendMode blendMode;
+@property (nonatomic, assign) IJSVGOverflowVisibility overflowVisibility;
+
++ (void)walkNodeTree:(IJSVGNode*)node
+            handler:(IJSVGNodeWalkHandler)handler;
 
 + (IJSVGNodeType)typeForString:(NSString*)string
                           kind:(NSXMLNodeKind)kind;

Framework/IJSVG/IJSVG/Source/Nodes/IJSVGNode.m

@@ -9,136 +9,134 @@
 #import "IJSVGDef.h"
 #import "IJSVGNode.h"
 #import "IJSVGUtils.h"
+#import "IJSVGGroup.h"
 
 @implementation IJSVGNode
 
-@synthesize shouldRender;
-@synthesize type;
-@synthesize name;
-@synthesize classNameList;
-@synthesize className;
-@synthesize unicode;
-@synthesize x;
-@synthesize y;
-@synthesize width;
-@synthesize height;
-@synthesize fillColor;
-@synthesize fillOpacity;
-@synthesize strokeColor;
-@synthesize strokeOpacity;
-@synthesize strokeWidth;
-@synthesize opacity;
-@synthesize identifier;
-@synthesize parentNode;
-@synthesize intermediateParentNode;
-@synthesize transforms;
-@synthesize windingRule;
-@synthesize def;
-@synthesize fillGradient;
-@synthesize fillPattern;
-@synthesize strokeGradient;
-@synthesize strokePattern;
-@synthesize clipPath;
-@synthesize lineCapStyle;
-@synthesize lineJoinStyle;
-@synthesize strokeDashArrayCount;
-@synthesize strokeDashArray;
-@synthesize strokeDashOffset;
-@synthesize usesDefaultFillColor;
-@synthesize svg;
-@synthesize mask;
-@synthesize units;
-@synthesize contentUnits;
-@synthesize blendMode;
-
 - (void)dealloc
 {
-    free(strokeDashArray);
+    (void)free(_strokeDashArray), _strokeDashArray = NULL;
-    (void)([x release]), x = nil;
+    (void)([_x release]), _x = nil;
-    (void)([y release]), y = nil;
+    (void)([_y release]), _y = nil;
-    (void)([width release]), width = nil;
+    (void)([_width release]), _width = nil;
-    (void)([height release]), height = nil;
+    (void)([_height release]), _height = nil;
-    (void)([opacity release]), opacity = nil;
+    (void)([_opacity release]), _opacity = nil;
-    (void)([fillOpacity release]), fillOpacity = nil;
+    (void)([_offset release]), _offset = nil;
-    (void)([strokeOpacity release]), strokeOpacity = nil;
+    (void)([_fillOpacity release]), _fillOpacity = nil;
-    (void)([strokeWidth release]), strokeWidth = nil;
+    (void)([_strokeOpacity release]), _strokeOpacity = nil;
-    (void)([strokeDashOffset release]), strokeDashOffset = nil;
+    (void)([_strokeWidth release]), _strokeWidth = nil;
-    (void)([unicode release]), unicode = nil;
+    (void)([_strokeDashOffset release]), _strokeDashOffset = nil;
-    (void)([fillGradient release]), fillGradient = nil;
+    (void)([_unicode release]), _unicode = nil;
-    (void)([strokeGradient release]), strokeGradient = nil;
+    (void)([_fillGradient release]), _fillGradient = nil;
-    (void)([strokePattern release]), strokePattern = nil;
+    (void)([_strokeGradient release]), _strokeGradient = nil;
-    (void)([transforms release]), transforms = nil;
+    (void)([_strokePattern release]), _strokePattern = nil;
-    (void)([fillColor release]), fillColor = nil;
+    (void)([_transforms release]), _transforms = nil;
-    (void)([strokeColor release]), strokeColor = nil;
+    (void)([_fillColor release]), _fillColor = nil;
-    (void)([identifier release]), identifier = nil;
+    (void)([_strokeColor release]), _strokeColor = nil;
-    (void)([def release]), def = nil;
+    (void)([_identifier release]), _identifier = nil;
-    (void)([name release]), name = nil;
+    (void)([_def release]), _def = nil;
-    (void)([className release]), className = nil;
+    (void)([_name release]), _name = nil;
-    (void)([classNameList release]), classNameList = nil;
+    (void)([_title release]), _title = nil;
-    (void)([fillPattern release]), fillPattern = nil;
+    (void)([_desc release]), _desc = nil;
-    (void)([clipPath release]), clipPath = nil;
+    (void)([_className release]), _className = nil;
-    (void)([svg release]), svg = nil;
+    (void)([_classNameList release]), _classNameList = nil;
-    (void)([mask release]), mask = nil;
+    (void)([_fillPattern release]), _fillPattern = nil;
+    (void)([_clipPath release]), _clipPath = nil;
+    (void)([_svg release]), _svg = nil;
+    (void)([_mask release]), _mask = nil;
     [super dealloc];
 }
 
 + (IJSVGNodeType)typeForString:(NSString*)string
                           kind:(NSXMLNodeKind)kind
 {
-    string = [string lowercaseString];
+    // possible fix for older os's that complain
-    if ([string isEqualToString:@"style"])
+    if(string == nil || kind == NSXMLCommentKind) {
+        return IJSVGNodeTypeNotFound;
+    }
+    
+    const char* name = string.lowercaseString.UTF8String;
+    if(name == NULL) {
+        return IJSVGNodeTypeNotFound;
+    }
+    if (strcmp(name, "style") == 0) {
         return IJSVGNodeTypeStyle;
-    if ([string isEqualToString:@"switch"])
+    }
+    if (strcmp(name, "switch") == 0) {
         return IJSVGNodeTypeSwitch;
-    if ([string isEqualToString:@"defs"])
+    }
+    if (strcmp(name, "defs") == 0) {
         return IJSVGNodeTypeDef;
-    if ([string isEqualToString:@"g"])
+    }
+    if (strcmp(name, "g") == 0) {
         return IJSVGNodeTypeGroup;
-    if ([string isEqualToString:@"path"])
+    }
+    if (strcmp(name, "path") == 0) {
         return IJSVGNodeTypePath;
-    if ([string isEqualToString:@"polygon"])
+    }
+    if (strcmp(name, "polygon") == 0) {
         return IJSVGNodeTypePolygon;
-    if ([string isEqualToString:@"polyline"])
+    }
+    if (strcmp(name, "polyline") == 0) {
         return IJSVGNodeTypePolyline;
-    if ([string isEqualToString:@"rect"])
+    }
+    if (strcmp(name, "rect") == 0) {
         return IJSVGNodeTypeRect;
-    if ([string isEqualToString:@"line"])
+    }
+    if (strcmp(name, "line") == 0) {
         return IJSVGNodeTypeLine;
-    if ([string isEqualToString:@"circle"])
+    }
+    if (strcmp(name, "circle") == 0) {
         return IJSVGNodeTypeCircle;
-    if ([string isEqualToString:@"ellipse"])
+    }
+    if (strcmp(name, "ellipse") == 0) {
         return IJSVGNodeTypeEllipse;
-    if ([string isEqualToString:@"use"])
+    }
+    if (strcmp(name, "use") == 0) {
         return IJSVGNodeTypeUse;
-    if ([string isEqualToString:@"lineargradient"])
+    }
+    if (strcmp(name, "lineargradient") == 0) {
         return IJSVGNodeTypeLinearGradient;
-    if ([string isEqualToString:@"radialgradient"])
+    }
+    if (strcmp(name, "radialgradient") == 0) {
         return IJSVGNodeTypeRadialGradient;
-    if ([string isEqualToString:@"glyph"])
+    }
+    if(strcmp(name, "stop") == 0) {
+        return IJSVGNodeTypeStop;
+    }
+    if (strcmp(name, "glyph") == 0) {
         return IJSVGNodeTypeGlyph;
-    if ([string isEqualToString:@"font"])
+    }
+    if (strcmp(name, "font") == 0) {
         return IJSVGNodeTypeFont;
-    if ([string isEqualToString:@"clippath"])
+    }
+    if (strcmp(name, "clippath") == 0) {
         return IJSVGNodeTypeClipPath;
-    if ([string isEqualToString:@"mask"])
+    }
+    if (strcmp(name, "mask") == 0) {
         return IJSVGNodeTypeMask;
-    if ([string isEqualToString:@"image"])
+    }
+    if (strcmp(name, "image") == 0) {
         return IJSVGNodeTypeImage;
-    if ([string isEqualToString:@"pattern"])
+    }
+    if (strcmp(name, "pattern") == 0) {
         return IJSVGNodeTypePattern;
-    if ([string isEqualToString:@"svg"])
+    }
+    if (strcmp(name, "svg") == 0) {
         return IJSVGNodeTypeSVG;
-    if ([string isEqualToString:@"text"])
+    }
+    if (strcmp(name, "text") == 0) {
         return IJSVGNodeTypeText;
-    if ([string isEqualToString:@"tspan"] || kind == NSXMLTextKind) {
+    }
+    if (strcmp(name, "tspan") == 0 || kind == NSXMLTextKind) {
         return IJSVGNodeTypeTextSpan;
     }
-
+    if(strcmp(name, "title") == 0) {
-    // are we commong HTML? - if so just treat as a group
+        return IJSVGNodeTypeTitle;
-    if (IJSVGIsCommonHTMLElementName(string) == YES) {
+    }
-        return IJSVGNodeTypeGroup;
+    if(strcmp(name, "desc") == 0) {
+        return IJSVGNodeTypeDesc;
     }
-
     return IJSVGNodeTypeNotFound;
 }
 
@@ -150,8 +148,55 @@
     return self;
 }
 
++ (void)walkNodeTree:(IJSVGNode*)node
+             handler:(IJSVGNodeWalkHandler)handler
+{
+    BOOL allowChildNodes = YES;
+    BOOL stop = NO;
+    [self _walkNodeTree:node
+                handler:handler
+        allowChildNodes:&allowChildNodes
+                   stop:&stop];
+}
+
++ (void)_walkNodeTree:(IJSVGNode*)node
+              handler:(IJSVGNodeWalkHandler)handler
+      allowChildNodes:(BOOL*)allowChildNodes
+                 stop:(BOOL*)stop
+{
+    // run the handler and instantly stop
+    // if stop is set
+    handler(node, allowChildNodes, stop);
+    if(*stop == YES) {
+        return;
+    }
+    
+    // child nodes only work for nodes
+    // that are type group
+    if(*allowChildNodes == NO ||
+       [node isKindOfClass:IJSVGGroup.class] == NO) {
+        *allowChildNodes = YES;
+        return;
+    }
+    
+    // iterate over the childnodes
+    IJSVGGroup* group = (IJSVGGroup*)node;
+    for(IJSVGNode* childNode in group.childNodes) {
+        [self _walkNodeTree:childNode
+                    handler:handler
+            allowChildNodes:allowChildNodes
+                       stop:stop];
+        if(*stop == YES) {
+            return;
+        }
+    }
+}
+
 - (void)applyPropertiesFromNode:(IJSVGNode*)node
 {
+    self.title = node.title;
+    self.desc = node.desc;
+    
     self.name = node.name;
     self.type = node.type;
     self.unicode = node.unicode;
@@ -192,6 +237,7 @@
 
     self.shouldRender = node.shouldRender;
     self.blendMode = node.blendMode;
+    self.overflowVisibility = node.overflowVisibility;
 
     // dash array needs physical memory copied
     CGFloat* nStrokeDashArray = (CGFloat*)malloc(node.strokeDashArrayCount * sizeof(CGFloat));
@@ -230,9 +276,10 @@
         self.units = IJSVGUnitInherit;
 
         self.blendMode = IJSVGBlendModeNormal;
+        self.overflowVisibility = IJSVGOverflowVisibilityVisible;
 
-        if (flag) {
+        if (flag == YES) {
-            def = [[IJSVGDef alloc] init];
+            _def = [[IJSVGDef alloc] init];
         }
     }
     return self;
@@ -241,146 +288,146 @@
 - (IJSVGDef*)defForID:(NSString*)anID
 {
     IJSVGDef* aDef = nil;
-    if ((aDef = [def defForID:anID]) != nil) {
+    if ((aDef = [_def defForID:anID]) != nil) {
         return aDef;
     }
-    if (parentNode != nil) {
+    if (_parentNode != nil) {
-        return [parentNode defForID:anID];
+        return [_parentNode defForID:anID];
     }
     return nil;
 }
 
 - (void)addDef:(IJSVGNode*)aDef
 {
-    [def addDef:aDef];
+    [_def addDef:aDef];
 }
 
 // winding rule can inherit..
 - (IJSVGWindingRule)windingRule
 {
-    if (windingRule == IJSVGWindingRuleInherit && parentNode != nil) {
+    if (_windingRule == IJSVGWindingRuleInherit && _parentNode != nil) {
-        return parentNode.windingRule;
+        return _parentNode.windingRule;
     }
-    return windingRule;
+    return _windingRule;
 }
 
 - (IJSVGLineCapStyle)lineCapStyle
 {
-    if (lineCapStyle == IJSVGLineCapStyleInherit) {
+    if (_lineCapStyle == IJSVGLineCapStyleInherit) {
-        if (parentNode != nil) {
+        if (_parentNode != nil) {
-            return parentNode.lineCapStyle;
+            return _parentNode.lineCapStyle;
         }
     }
-    return lineCapStyle;
+    return _lineCapStyle;
 }
 
 - (IJSVGLineJoinStyle)lineJoinStyle
 {
-    if (lineJoinStyle == IJSVGLineJoinStyleInherit) {
+    if (_lineJoinStyle == IJSVGLineJoinStyleInherit) {
-        if (parentNode != nil) {
+        if (_parentNode != nil) {
-            return parentNode.lineJoinStyle;
+            return _parentNode.lineJoinStyle;
         }
     }
-    return lineJoinStyle;
+    return _lineJoinStyle;
 }
 
 // these are all recursive, so go up the chain
 // if they dont exist on this specific node
 - (IJSVGUnitLength*)opacity
 {
-    if (opacity.inherit && parentNode != nil) {
+    if (_opacity.inherit && _parentNode != nil) {
-        return parentNode.opacity;
+        return _parentNode.opacity;
     }
-    return opacity;
+    return _opacity;
 }
 
 // these are all recursive, so go up the chain
 // if they dont exist on this specific node
 - (IJSVGUnitLength*)fillOpacity
 {
-    if (fillOpacity.inherit && parentNode != nil) {
+    if (_fillOpacity.inherit && _parentNode != nil) {
-        return parentNode.fillOpacity;
+        return _parentNode.fillOpacity;
     }
-    return fillOpacity;
+    return _fillOpacity;
 }
 
 // these are all recursive, so go up the chain
 // if they dont exist on this specific node
 - (IJSVGUnitLength*)strokeWidth
 {
-    if (strokeWidth.inherit && parentNode != nil) {
+    if (_strokeWidth.inherit && _parentNode != nil) {
-        return parentNode.strokeWidth;
+        return _parentNode.strokeWidth;
     }
-    return strokeWidth;
+    return _strokeWidth;
 }
 
 // these are all recursive, so go up the chain
 // if they dont exist on this specific node
 - (NSColor*)strokeColor
 {
-    if (strokeColor != nil)
+    if (_strokeColor != nil)
-        return strokeColor;
+        return _strokeColor;
-    if (strokeColor == nil && parentNode != nil)
+    if (_strokeColor == nil && _parentNode != nil)
-        return parentNode.strokeColor;
+        return _parentNode.strokeColor;
     return nil;
 }
 
 - (IJSVGUnitLength*)strokeOpacity
 {
-    if (strokeOpacity.inherit && parentNode != nil) {
+    if (_strokeOpacity.inherit && _parentNode != nil) {
-        return parentNode.strokeOpacity;
+        return _parentNode.strokeOpacity;
     }
-    return strokeOpacity;
+    return _strokeOpacity;
 }
 
 // even though the spec explicity states fill color
 // must be on the path, it can also be on the
 - (NSColor*)fillColor
 {
-    if (fillColor == nil && parentNode != nil) {
+    if (_fillColor == nil && _parentNode != nil) {
-        return parentNode.fillColor;
+        return _parentNode.fillColor;
     }
-    return fillColor;
+    return _fillColor;
 }
 
 // these are all recursive, so go up the chain
 // if they dont exist on this specific node
 - (IJSVGGradient*)fillGradient
 {
-    if (fillGradient == nil && parentNode != nil) {
+    if (_fillGradient == nil && _parentNode != nil) {
-        return parentNode.fillGradient;
+        return _parentNode.fillGradient;
     }
-    return fillGradient;
+    return _fillGradient;
 }
 
 // these are all recursive, so go up the chain
 // if they dont exist on this specific node
 - (IJSVGPattern*)fillPattern
 {
-    if (fillPattern == nil && parentNode != nil) {
+    if (_fillPattern == nil && _parentNode != nil) {
-        return parentNode.fillPattern;
+        return _parentNode.fillPattern;
     }
-    return fillPattern;
+    return _fillPattern;
 }
 
 // these are all recursive, so go up the chain
 // if they dont exist on this specific node
 - (IJSVGGradient*)strokeGradient
 {
-    if (strokeGradient == nil && parentNode != nil) {
+    if (_strokeGradient == nil && _parentNode != nil) {
-        return parentNode.strokeGradient;
+        return _parentNode.strokeGradient;
     }
-    return strokeGradient;
+    return _strokeGradient;
 }
 
 // these are all recursive, so go up the chain
 // if they dont exist on this specific node
 - (IJSVGPattern*)strokePattern
 {
-    if (strokePattern == nil && parentNode != nil) {
+    if (_strokePattern == nil && _parentNode != nil) {
-        return parentNode.strokePattern;
+        return _parentNode.strokePattern;
     }
-    return strokePattern;
+    return _strokePattern;
 }
 
 @end

Framework/IJSVG/IJSVG/Source/Nodes/IJSVGPath.h

@@ -6,8 +6,7 @@
 //  Copyright (c) 2014 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGBezierPathAdditions.h"
+#import <IJSVG/IJSVGNode.h>
-#import "IJSVGNode.h"
 #import <Foundation/Foundation.h>
 
 @class IJSVGGroup;
@@ -23,15 +22,14 @@ typedef NS_ENUM(NSInteger, IJSVGPrimitivePathType) {
 };
 
 @interface IJSVGPath : IJSVGNode {
-
-    NSBezierPath* path;
-    CGPoint lastControlPoint;
 }
 
 @property (nonatomic, assign) IJSVGPrimitivePathType primitiveType;
-@property (nonatomic, retain) NSBezierPath* path;
+@property (nonatomic, assign) CGMutablePathRef path;
 @property (nonatomic, assign) CGPoint lastControlPoint;
-@property (nonatomic, readonly) CGPathRef CGPath;
+@property (nonatomic, readonly) CGRect controlPointBoundingBox;
+@property (nonatomic, readonly) CGRect pathBoundingBox;
+@property (nonatomic, assign, readonly) BOOL isStroked;
 
 - (void)close;
 - (NSPoint)currentPoint;

Framework/IJSVG/IJSVG/Source/Nodes/IJSVGPath.m

@@ -11,18 +11,11 @@
 
 @implementation IJSVGPath
 
-@synthesize path = _path;
-@synthesize lastControlPoint;
-@synthesize CGPath = _CGPath;
-@synthesize primitiveType = _primitiveType;
-
 - (void)dealloc
 {
-    if (_CGPath != nil) {
+    if(_path != NULL) {
-        CGPathRelease(_CGPath);
+        (void)CGPathRelease(_path), _path = NULL;
-        _CGPath = nil;
     }
-    ((void)[_path release]), _path = nil;
     [super dealloc];
 }
 
@@ -30,7 +23,7 @@
 {
     if ((self = [super init]) != nil) {
         _primitiveType = kIJSVGPrimitivePathTypePath;
-        _path = NSBezierPath.bezierPath.retain;
+        _path = CGPathCreateMutable();
     }
     return self;
 }
@@ -38,34 +31,45 @@
 - (id)copyWithZone:(NSZone*)zone
 {
     IJSVGPath* node = [super copyWithZone:zone];
-    node.path = [self.path.copy autorelease];
+    node.path = _path;
     return node;
 }
 
+- (void)setPath:(CGMutablePathRef)path
+{
+    // this will automatically copy any path into a mutable path
+    // regardless of if it was a mutable path to begin with
+    if(_path != NULL) {
+        (void)CGPathRelease(_path), _path = NULL;
+    }
+    _path = CGPathCreateMutableCopy(path);
+}
+
+- (CGRect)pathBoundingBox
+{
+    return CGPathGetPathBoundingBox(_path);
+}
+
+- (CGRect)controlPointBoundingBox
+{
+    return CGPathGetBoundingBox(_path);
+}
+
 - (NSPoint)currentPoint
 {
-    return _path.currentPoint;
+    return CGPathGetCurrentPoint(_path);
 }
 
 - (void)close
 {
-    [_path closePath];
+    CGPathCloseSubpath(_path);
 }
 
-- (void)invlidateCGPath
+- (BOOL)isStroked
 {
-    if (_CGPath != nil) {
+    return (self.strokeColor != nil && self.strokeColor.alphaComponent != 0.f) ||
-        CGPathRelease(_CGPath);
+        self.strokePattern != nil ||
-    }
+        self.strokeGradient != nil;
-    _CGPath = nil;
-}
-
-- (CGPathRef)CGPath
-{
-    if (_CGPath == nil) {
-        _CGPath = [_path newCGPathRef:NO];
-    }
-    return _CGPath;
 }
 
 @end

Framework/IJSVG/IJSVG/Source/Nodes/IJSVGPattern.h

@@ -6,8 +6,8 @@
 //  Copyright © 2016 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGGroup.h"
+#import <IJSVG/IJSVGGroup.h>
-#import "IJSVGImage.h"
+#import <IJSVG/IJSVGImage.h>
 #import <Foundation/Foundation.h>
 
 @interface IJSVGPattern : IJSVGGroup {

Framework/IJSVG/IJSVG/Source/Nodes/IJSVGRadialGradient.h

@@ -6,7 +6,7 @@
 //  Copyright (c) 2014 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGGradient.h"
+#import <IJSVG/IJSVGGradient.h>
 #import <Foundation/Foundation.h>
 
 @interface IJSVGRadialGradient : IJSVGGradient

Framework/IJSVG/IJSVG/Source/Nodes/IJSVGRadialGradient.m

@@ -7,33 +7,28 @@
 //
 
 #import "IJSVGRadialGradient.h"
+#import "IJSVGParser.h"
 
 @implementation IJSVGRadialGradient
 
-@synthesize cx;
-@synthesize cy;
-@synthesize fx;
-@synthesize fy;
-@synthesize radius;
-
 - (void)dealloc
 {
-    (void)([cx release]), cx = nil;
+    (void)([_cx release]), _cx = nil;
-    (void)([cy release]), cy = nil;
+    (void)([_cy release]), _cy = nil;
-    (void)([fx release]), fx = nil;
+    (void)([_fx release]), _fx = nil;
-    (void)([fy release]), fy = nil;
+    (void)([_fy release]), _fy = nil;
-    (void)([radius release]), radius = nil;
+    (void)([_radius release]), _radius = nil;
     [super dealloc];
 }
 
 - (id)copyWithZone:(NSZone*)zone
 {
     IJSVGRadialGradient* grad = [super copyWithZone:zone];
-    grad.fx = self.fx;
+    grad.fx = _fx;
-    grad.fy = self.fy;
+    grad.fy = _fy;
-    grad.cx = self.cx;
+    grad.cx = _cx;
-    grad.cy = self.cy;
+    grad.cy = _cy;
-    grad.radius = self.radius;
+    grad.radius = _radius;
     return grad;
 }
 
@@ -41,9 +36,10 @@
                     gradient:(IJSVGRadialGradient*)gradient
 {
     // cx defaults to 50% if not specified
-    NSDictionary* kv = @{ @"cx" : @"cx",
+    NSDictionary* kv = @{
-        @"cy" : @"cy",
+        IJSVGAttributeCX : @"cx",
-        @"r" : @"radius" };
+        IJSVGAttributeCY : @"cy",
+        IJSVGAttributeR : @"radius" };
 
     for (NSString* key in kv.allKeys) {
         NSString* str = [element attributeForName:key].stringValue;
@@ -64,13 +60,13 @@
     gradient.fy = gradient.cy;
 
     // needs fixing
-    NSString* fx = [element attributeForName:@"fx"].stringValue;
+    NSString* fx = [element attributeForName:IJSVGAttributeFX].stringValue;
     if (fx != nil) {
         gradient.fx = [IJSVGUnitLength unitWithString:fx
                                          fromUnitType:gradient.units];
     }
 
-    NSString* fy = [element attributeForName:@"fy"].stringValue;
+    NSString* fy = [element attributeForName:IJSVGAttributeFY].stringValue;
     if (fx != nil) {
         gradient.fy = [IJSVGUnitLength unitWithString:fy
                                          fromUnitType:gradient.units];
@@ -81,7 +77,9 @@
     }
 
     NSArray* colors = nil;
-    CGFloat* colorStops = [self.class computeColorStopsFromString:element colors:&colors];
+    CGFloat* colorStops = [self.class computeColorStops:gradient
+                                                 colors:&colors];
+    
     NSGradient* ret = [[[NSGradient alloc] initWithColors:colors
                                               atLocations:colorStops
                                                colorSpace:IJSVGColor.defaultColorSpace] autorelease];
@@ -112,15 +110,15 @@
     }
 
     // compute size based on percentages
-    CGFloat x = [self.cx computeValue:CGRectGetWidth(boundingBox)];
+    CGFloat x = [_cx computeValue:CGRectGetWidth(boundingBox)];
-    CGFloat y = [self.cy computeValue:CGRectGetHeight(boundingBox)];
+    CGFloat y = [_cy computeValue:CGRectGetHeight(boundingBox)];
     startPoint = CGPointMake(x, y);
     CGFloat val = MIN(CGRectGetWidth(boundingBox),
         CGRectGetHeight(boundingBox));
-    radius = [self.radius computeValue:val];
+    radius = [_radius computeValue:val];
 
-    CGFloat ex = [self.fx computeValue:CGRectGetWidth(boundingBox)];
+    CGFloat ex = [_fx computeValue:CGRectGetWidth(boundingBox)];
-    CGFloat ey = [self.fy computeValue:CGRectGetHeight(boundingBox)];
+    CGFloat ey = [_fy computeValue:CGRectGetHeight(boundingBox)];
 
     gradientEndPoint = CGPointMake(ex, ey);
     gradientStartPoint = startPoint;

Framework/IJSVG/IJSVG/Source/Nodes/IJSVGText.h

@@ -6,11 +6,9 @@
 //  Copyright © 2017 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGGroup.h"
+#import <IJSVG/IJSVGGroup.h>
 
 @interface IJSVGText : IJSVGGroup {
-
-    NSString* text;
 }
 
 @property (nonatomic, copy) NSString* text;

Framework/IJSVG/IJSVG/Source/Nodes/IJSVGText.m

@@ -10,18 +10,16 @@
 
 @implementation IJSVGText
 
-@synthesize text;
-
 - (void)dealloc
 {
-    (void)([text release]), text = nil;
+    (void)([_text release]), _text = nil;
     [super dealloc];
 }
 
 - (IJSVGText*)copyWithZone:(NSZone*)zone
 {
     IJSVGText* node = [super copyWithZone:zone];
-    node.text = self.text;
+    node.text = _text;
     return node;
 }
 

Framework/IJSVG/IJSVG/Source/Parsing/IJSVGParser.h

@@ -6,65 +6,74 @@
 //  Copyright (c) 2014 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGColor.h"
+#import <IJSVG/IJSVGColor.h>
-#import "IJSVGCommand.h"
+#import <IJSVG/IJSVGCommand.h>
-#import "IJSVGDef.h"
+#import <IJSVG/IJSVGDef.h>
-#import "IJSVGError.h"
+#import <IJSVG/IJSVGError.h>
-#import "IJSVGForeignObject.h"
+#import <IJSVG/IJSVGForeignObject.h>
-#import "IJSVGGroup.h"
+#import <IJSVG/IJSVGGroup.h>
-#import "IJSVGImage.h"
+#import <IJSVG/IJSVGImage.h>
-#import "IJSVGLinearGradient.h"
+#import <IJSVG/IJSVGLinearGradient.h>
-#import "IJSVGPath.h"
+#import <IJSVG/IJSVGPath.h>
-#import "IJSVGPattern.h"
+#import <IJSVG/IJSVGPattern.h>
-#import "IJSVGRadialGradient.h"
+#import <IJSVG/IJSVGRadialGradient.h>
-#import "IJSVGStyleSheet.h"
+#import <IJSVG/IJSVGStyleSheet.h>
-#import "IJSVGText.h"
+#import <IJSVG/IJSVGText.h>
-#import "IJSVGTransform.h"
+#import <IJSVG/IJSVGTransform.h>
-#import "IJSVGUtils.h"
+#import <IJSVG/IJSVGUnitRect.h>
+#import <IJSVG/IJSVGUtils.h>
 #import <AppKit/AppKit.h>
 #import <Foundation/Foundation.h>
 
-static NSString const* IJSVGAttributeViewBox = @"viewBox";
+extern NSString* const IJSVGAttributeViewBox;
-static NSString const* IJSVGAttributeID = @"id";
+extern NSString* const IJSVGAttributeID;
-static NSString const* IJSVGAttributeClass = @"class";
+extern NSString* const IJSVGAttributeClass;
-static NSString const* IJSVGAttributeX = @"x";
+extern NSString* const IJSVGAttributeX;
-static NSString const* IJSVGAttributeY = @"y";
+extern NSString* const IJSVGAttributeY;
-static NSString const* IJSVGAttributeWidth = @"width";
+extern NSString* const IJSVGAttributeWidth;
-static NSString const* IJSVGAttributeHeight = @"height";
+extern NSString* const IJSVGAttributeHeight;
-static NSString const* IJSVGAttributeOpacity = @"opacity";
+extern NSString* const IJSVGAttributeOpacity;
-static NSString const* IJSVGAttributeStrokeOpacity = @"stroke-opacity";
+extern NSString* const IJSVGAttributeStrokeOpacity;
-static NSString const* IJSVGAttributeStrokeWidth = @"stroke-width";
+extern NSString* const IJSVGAttributeStrokeWidth;
-static NSString const* IJSVGAttributeStrokeDashOffset = @"stroke-dashoffset";
+extern NSString* const IJSVGAttributeStrokeDashOffset;
-static NSString const* IJSVGAttributeFillOpacity = @"fill-opacity";
+extern NSString* const IJSVGAttributeFillOpacity;
-static NSString const* IJSVGAttributeClipPath = @"clip-path";
+extern NSString* const IJSVGAttributeClipPath;
-static NSString const* IJSVGAttributeMask = @"mask";
+extern NSString* const IJSVGAttributeMask;
-static NSString const* IJSVGAttributeGradientUnits = @"gradientUnits";
+extern NSString* const IJSVGAttributeGradientUnits;
-static NSString const* IJSVGAttributeMaskUnits = @"maskUnits";
+extern NSString* const IJSVGAttributeMaskUnits;
-static NSString const* IJSVGAttributeMaskContentUnits = @"maskContentUnits";
+extern NSString* const IJSVGAttributeMaskContentUnits;
-static NSString const* IJSVGAttributeTransform = @"transform";
+extern NSString* const IJSVGAttributeTransform;
-static NSString const* IJSVGAttributeGradientTransform = @"gradientTransform";
+extern NSString* const IJSVGAttributeGradientTransform;
-static NSString const* IJSVGAttributeUnicode = @"unicode";
+extern NSString* const IJSVGAttributeUnicode;
-static NSString const* IJSVGAttributeStrokeLineCap = @"stroke-linecap";
+extern NSString* const IJSVGAttributeStrokeLineCap;
-static NSString const* IJSVGAttributeLineJoin = @"stroke-linejoin";
+extern NSString* const IJSVGAttributeLineJoin;
-static NSString const* IJSVGAttributeStroke = @"stroke";
+extern NSString* const IJSVGAttributeStroke;
-static NSString const* IJSVGAttributeStrokeDashArray = @"stroke-dasharray";
+extern NSString* const IJSVGAttributeStrokeDashArray;
-static NSString const* IJSVGAttributeFill = @"fill";
+extern NSString* const IJSVGAttributeFill;
-static NSString const* IJSVGAttributeFillRule = @"fill-rule";
+extern NSString* const IJSVGAttributeFillRule;
-static NSString const* IJSVGAttributeBlendMode = @"mix-blend-mode";
+extern NSString* const IJSVGAttributeBlendMode;
-static NSString const* IJSVGAttributeDisplay = @"display";
+extern NSString* const IJSVGAttributeDisplay;
-static NSString const* IJSVGAttributeStyle = @"style";
+extern NSString* const IJSVGAttributeStyle;
-static NSString const* IJSVGAttributeD = @"d";
+extern NSString* const IJSVGAttributeD;
-static NSString const* IJSVGAttributeXLink = @"xlink:href";
+extern NSString* const IJSVGAttributeXLink;
-static NSString const* IJSVGAttributeX1 = @"x1";
+extern NSString* const IJSVGAttributeX1;
-static NSString const* IJSVGAttributeX2 = @"x2";
+extern NSString* const IJSVGAttributeX2;
-static NSString const* IJSVGAttributeY1 = @"y1";
+extern NSString* const IJSVGAttributeY1;
-static NSString const* IJSVGAttributeY2 = @"y2";
+extern NSString* const IJSVGAttributeY2;
-static NSString const* IJSVGAttributeRX = @"rx";
+extern NSString* const IJSVGAttributeRX;
-static NSString const* IJSVGAttributeRY = @"ry";
+extern NSString* const IJSVGAttributeRY;
-static NSString const* IJSVGAttributeCX = @"cx";
+extern NSString* const IJSVGAttributeCX;
-static NSString const* IJSVGAttributeCY = @"cy";
+extern NSString* const IJSVGAttributeCY;
-static NSString const* IJSVGAttributeR = @"r";
+extern NSString* const IJSVGAttributeR;
-static NSString const* IJSVGAttributePoints = @"points";
+extern NSString* const IJSVGAttributeFX;
+extern NSString* const IJSVGAttributeFY;
+extern NSString* const IJSVGAttributePoints;
+extern NSString* const IJSVGAttributeOffset;
+extern NSString* const IJSVGAttributeStopColor;
+extern NSString* const IJSVGAttributeStopOpacity;
+extern NSString* const IJSVGAttributeHref;
+extern NSString* const IJSVGAttributeOverflow;
+
 
 @class IJSVGParser;
 
@@ -84,17 +93,13 @@ static NSString const* IJSVGAttributePoints = @"points";
 
 @interface IJSVGParser : IJSVGGroup {
 
-    NSRect viewBox;
-    NSSize proposedViewSize;
-
 @private
     id<IJSVGParserDelegate> _delegate;
     NSXMLDocument* _document;
-    NSMutableArray* _glyphs;
+    NSMutableArray<IJSVGPath*>* _glyphs;
     IJSVGStyleSheet* _styleSheet;
-    NSMutableArray* _parsedNodes;
+    NSMutableDictionary<NSString*, NSXMLElement*>* _defNodes;
-    NSMutableDictionary* _defNodes;
+    NSMutableDictionary<NSString*, NSXMLElement*>* _baseDefNodes;
-    NSMutableDictionary* _baseDefNodes;
     NSMutableArray<IJSVG*>* _svgs;
 
     struct {
@@ -107,7 +112,7 @@ static NSString const* IJSVGAttributePoints = @"points";
 }
 
 @property (nonatomic, readonly) NSRect viewBox;
-@property (nonatomic, readonly) NSSize proposedViewSize;
+@property (nonatomic, readonly) IJSVGUnitSize* intrinsicSize;
 
 + (BOOL)isDataSVG:(NSData*)data;
 

Framework/IJSVG/IJSVG/Source/Parsing/IJSVGParser.m

@@ -9,10 +9,85 @@
 #import "IJSVG.h"
 #import "IJSVGParser.h"
 
+NSString* const IJSVGAttributeViewBox = @"viewBox";
+NSString* const IJSVGAttributeID = @"id";
+NSString* const IJSVGAttributeClass = @"class";
+NSString* const IJSVGAttributeX = @"x";
+NSString* const IJSVGAttributeY = @"y";
+NSString* const IJSVGAttributeWidth = @"width";
+NSString* const IJSVGAttributeHeight = @"height";
+NSString* const IJSVGAttributeOpacity = @"opacity";
+NSString* const IJSVGAttributeStrokeOpacity = @"stroke-opacity";
+NSString* const IJSVGAttributeStrokeWidth = @"stroke-width";
+NSString* const IJSVGAttributeStrokeDashOffset = @"stroke-dashoffset";
+NSString* const IJSVGAttributeFillOpacity = @"fill-opacity";
+NSString* const IJSVGAttributeClipPath = @"clip-path";
+NSString* const IJSVGAttributeMask = @"mask";
+NSString* const IJSVGAttributeGradientUnits = @"gradientUnits";
+NSString* const IJSVGAttributeMaskUnits = @"maskUnits";
+NSString* const IJSVGAttributeMaskContentUnits = @"maskContentUnits";
+NSString* const IJSVGAttributeTransform = @"transform";
+NSString* const IJSVGAttributeGradientTransform = @"gradientTransform";
+NSString* const IJSVGAttributeUnicode = @"unicode";
+NSString* const IJSVGAttributeStrokeLineCap = @"stroke-linecap";
+NSString* const IJSVGAttributeLineJoin = @"stroke-linejoin";
+NSString* const IJSVGAttributeStroke = @"stroke";
+NSString* const IJSVGAttributeStrokeDashArray = @"stroke-dasharray";
+NSString* const IJSVGAttributeFill = @"fill";
+NSString* const IJSVGAttributeFillRule = @"fill-rule";
+NSString* const IJSVGAttributeBlendMode = @"mix-blend-mode";
+NSString* const IJSVGAttributeDisplay = @"display";
+NSString* const IJSVGAttributeStyle = @"style";
+NSString* const IJSVGAttributeD = @"d";
+NSString* const IJSVGAttributeXLink = @"xlink:href";
+NSString* const IJSVGAttributeX1 = @"x1";
+NSString* const IJSVGAttributeX2 = @"x2";
+NSString* const IJSVGAttributeY1 = @"y1";
+NSString* const IJSVGAttributeY2 = @"y2";
+NSString* const IJSVGAttributeRX = @"rx";
+NSString* const IJSVGAttributeRY = @"ry";
+NSString* const IJSVGAttributeCX = @"cx";
+NSString* const IJSVGAttributeCY = @"cy";
+NSString* const IJSVGAttributeR = @"r";
+NSString* const IJSVGAttributeFX = @"fx";
+NSString* const IJSVGAttributeFY = @"fy";
+NSString* const IJSVGAttributePoints = @"points";
+NSString* const IJSVGAttributeOffset = @"offset";
+NSString* const IJSVGAttributeStopColor = @"stop-color";
+NSString* const IJSVGAttributeStopOpacity = @"stop-opacity";
+NSString* const IJSVGAttributeHref = @"href";
+NSString* const IJSVGAttributeOverflow = @"overflow";
+
 @implementation IJSVGParser
 
-@synthesize viewBox;
+static NSDictionary* _IJSVGAttributeDictionaryFloats = nil;
-@synthesize proposedViewSize;
+static NSDictionary* _IJSVGAttributeDictionaryNodes = nil;
+static NSDictionary* _IJSVGAttributeDictionaryUnits = nil;
+static NSDictionary* _IJSVGAttributeDictionaryTransforms = nil;
+
++ (void)load
+{
+    _IJSVGAttributeDictionaryFloats = [@{
+        IJSVGAttributeX : @"x",
+        IJSVGAttributeY : @"y",
+        IJSVGAttributeWidth : @"width",
+        IJSVGAttributeHeight : @"height",
+        IJSVGAttributeOpacity : @"opacity",
+        IJSVGAttributeStrokeOpacity : @"strokeOpacity",
+        IJSVGAttributeStrokeWidth : @"strokeWidth",
+        IJSVGAttributeStrokeDashOffset : @"strokeDashOffset",
+        IJSVGAttributeFillOpacity : @"fillOpacity" } retain];
+    _IJSVGAttributeDictionaryNodes = [@{
+        IJSVGAttributeClipPath : @"clipPath",
+        IJSVGAttributeMask : @"mask" } retain];
+    _IJSVGAttributeDictionaryUnits = [@{
+        IJSVGAttributeGradientUnits : @"units",
+        IJSVGAttributeMaskUnits : @"units",
+        IJSVGAttributeMaskContentUnits : @"contentUnits"} retain];
+    _IJSVGAttributeDictionaryTransforms = [@{
+        IJSVGAttributeTransform : @"transforms",
+        IJSVGAttributeGradientTransform : @"transforms" } retain];
+}
 
 + (IJSVGParser*)groupForFileURL:(NSURL*)aURL
 {
@@ -42,10 +117,10 @@
 {
     (void)([_glyphs release]), _glyphs = nil;
     (void)([_styleSheet release]), _styleSheet = nil;
-    (void)([_parsedNodes release]), _parsedNodes = nil;
     (void)([_defNodes release]), _defNodes = nil;
     (void)([_baseDefNodes release]), _baseDefNodes = nil;
     (void)([_svgs release]), _svgs = nil;
+    (void)([_intrinsicSize release]), _intrinsicSize = nil;
     if (_commandDataStream != NULL) {
         (void)IJSVGPathDataStreamRelease(_commandDataStream), _commandDataStream = nil;
     }
@@ -64,11 +139,7 @@
         _respondsTo.handleSubSVG = [_delegate respondsToSelector:@selector(svgParser:foundSubSVG:withSVGString:)];
 
         _commandDataStream = IJSVGPathDataStreamCreateDefault();
-        _glyphs = [[NSMutableArray alloc] init];
-        _parsedNodes = [[NSMutableArray alloc] init];
         _defNodes = [[NSMutableDictionary alloc] init];
-        _baseDefNodes = [[NSMutableDictionary alloc] init];
-        _svgs = [[NSMutableArray alloc] init];
 
         // load the document / file, assume its UTF8
 
@@ -181,7 +252,7 @@
 
 - (NSSize)size
 {
-    return viewBox.size;
+    return _viewBox.size;
 }
 
 - (void)_parse
@@ -195,35 +266,47 @@
 
     // find the sizebox!
     NSXMLNode* attribute = nil;
-    if ((attribute = [svgElement attributeForName:(NSString*)IJSVGAttributeViewBox]) != nil) {
+    if ((attribute = [svgElement attributeForName:IJSVGAttributeViewBox]) != nil) {
         // we have a viewbox...
-        CGFloat* box = [IJSVGUtils parseViewBox:[attribute stringValue]];
+        CGFloat* box = [IJSVGUtils parseViewBox:attribute.stringValue];
-        viewBox = NSMakeRect(box[0], box[1], box[2], box[3]);
+        _viewBox = NSMakeRect(box[0], box[1], box[2], box[3]);
-        free(box);
+        (void)free(box);
     } else {
         // there is no view box so find the width and height
-        CGFloat w = [svgElement attributeForName:(NSString*)IJSVGAttributeWidth].stringValue.floatValue;
+        NSString* wAtt = [svgElement attributeForName:IJSVGAttributeWidth].stringValue;
-        CGFloat h = [svgElement attributeForName:(NSString*)IJSVGAttributeHeight].stringValue.floatValue;
+        NSString* hAtt = [svgElement attributeForName:IJSVGAttributeHeight].stringValue;
+        IJSVGUnitLength* wLength = [IJSVGUnitLength unitWithString:wAtt];
+        IJSVGUnitLength* hLength = [IJSVGUnitLength unitWithString:hAtt];
+        
+        // its possible wlength or hlength are nil
+        CGFloat w = wLength ? wLength.value : 0.f;
+        CGFloat h = hLength ? hLength.value : 0.f;
+        
         if (h == 0.f && w != 0.f) {
             h = w;
         } else if (w == 0.f && h != 0.f) {
             w = h;
         }
-        viewBox = NSMakeRect(0.f, 0.f, w, h);
+        _viewBox = NSMakeRect(0.f, 0.f, w, h);
     }
 
     // parse the width and height....
-    CGFloat w = [svgElement attributeForName:(NSString*)IJSVGAttributeWidth].stringValue.floatValue;
+    NSString* w = [svgElement attributeForName:IJSVGAttributeWidth].stringValue;
-    CGFloat h = [svgElement attributeForName:(NSString*)IJSVGAttributeHeight].stringValue.floatValue;
+    NSString* h = [svgElement attributeForName:IJSVGAttributeHeight].stringValue;
-    if (w == 0.f && h == 0.f) {
+
-        w = viewBox.size.width;
+    // by default just the the width and height from the viewbox unless
-        h = viewBox.size.height;
+    // specified otherwise
-    } else if (w == 0 && h != 0.f) {
+    IJSVGUnitLength* wl = [IJSVGUnitLength unitWithFloat:_viewBox.size.width];
-        w = viewBox.size.width;
+    IJSVGUnitLength* hl = [IJSVGUnitLength unitWithFloat:_viewBox.size.height];
-    } else if (h == 0 && w != 0.f) {
+    if (w != nil) {
-        h = viewBox.size.height;
+        wl = [IJSVGUnitLength unitWithString:w];
     }
-    proposedViewSize = NSMakeSize(w, h);
+    if (h != nil) {
+        hl = [IJSVGUnitLength unitWithString:h];
+    }
+
+    // store the width and height
+    _intrinsicSize = [IJSVGUnitSize sizeWithWidth:wl height:hl].retain;
 
     // the root element is SVG, so iterate over its children
     // recursively
@@ -232,16 +315,8 @@
             intoGroup:self
                   def:NO];
 
-    // now everything has been done we need to compute the style tree
-    for (NSDictionary* dict in _parsedNodes) {
-        [self _postParseElementForCommonAttributes:dict[@"element"]
-                                              node:dict[@"node"]
-                                  ignoreAttributes:nil];
-    }
-
     // dont need the style sheet or the parsed nodes as this point
     (void)([_styleSheet release]), _styleSheet = nil;
-    (void)([_parsedNodes release]), _parsedNodes = nil;
     (void)([_defNodes release]), _defNodes = nil;
     (void)IJSVGPathDataStreamRelease(_commandDataStream), _commandDataStream = NULL;
 }
@@ -317,22 +392,13 @@
     }
 
     // floats
-    atts(@{ (NSString*)IJSVGAttributeX : @"x",
+    atts(_IJSVGAttributeDictionaryFloats,
-        (NSString*)IJSVGAttributeY : @"y",
-        (NSString*)IJSVGAttributeWidth : @"width",
-        (NSString*)IJSVGAttributeHeight : @"height",
-        (NSString*)IJSVGAttributeOpacity : @"opacity",
-        (NSString*)IJSVGAttributeStrokeOpacity : @"strokeOpacity",
-        (NSString*)IJSVGAttributeStrokeWidth : @"strokeWidth",
-        (NSString*)IJSVGAttributeStrokeDashOffset : @"strokeDashOffset",
-        (NSString*)IJSVGAttributeFillOpacity : @"fillOpacity" },
         ^id(NSString* value) {
             return [IJSVGUnitLength unitWithString:value];
         });
 
     // nodes
-    atts(@{ (NSString*)IJSVGAttributeClipPath : @"clipPath",
+    atts(_IJSVGAttributeDictionaryNodes,
-        (NSString*)IJSVGAttributeMask : @"mask" },
         ^id(NSString* value) {
             NSString* url = [IJSVGUtils defURL:value];
             if (url != nil) {
@@ -342,16 +408,13 @@
         });
 
     // units
-    atts(@{ (NSString*)IJSVGAttributeGradientUnits : @"units",
+    atts(_IJSVGAttributeDictionaryUnits,
-        (NSString*)IJSVGAttributeMaskUnits : @"units",
-        (NSString*)IJSVGAttributeMaskContentUnits : @"contentUnits" },
         ^id(NSString* value) {
             return @([IJSVGUtils unitTypeForString:value]);
         });
 
     // transforms
-    atts(@{ (NSString*)IJSVGAttributeTransform : @"transforms",
+    atts(_IJSVGAttributeDictionaryTransforms,
-        (NSString*)IJSVGAttributeGradientTransform : @"transforms" },
         ^(NSString* value) {
             NSMutableArray* tempTransforms = [[[NSMutableArray alloc] init] autorelease];
             [tempTransforms addObjectsFromArray:[IJSVGTransform transformsForString:value]];
@@ -418,7 +481,6 @@
         if (fillDefID != nil) {
             // find the object
             id obj = [self definedObjectForID:fillDefID];
-
             // what type is it?
             if ([obj isKindOfClass:[IJSVGGradient class]]) {
                 node.fillGradient = (IJSVGGradient*)obj;
@@ -454,6 +516,52 @@
             node.shouldRender = NO;
         }
     });
+    
+    // offset
+    attr(IJSVGAttributeOffset, ^(NSString* value) {
+        node.offset = [IJSVGUnitLength unitWithString:value];
+    });
+    
+    // stop-opacity
+    attr(IJSVGAttributeStopOpacity, ^(NSString* value) {
+        node.fillOpacity = [IJSVGUnitLength unitWithString:value];
+    });
+    
+    // stop-color
+    attr(IJSVGAttributeStopColor, ^(NSString* value) {
+        node.fillColor = [IJSVGColor colorFromString:value];
+        if(node.fillOpacity.value != 1.f) {
+            node.fillColor = [IJSVGColor changeAlphaOnColor:node.fillColor
+                                                         to:node.fillOpacity.value];
+        }
+    });
+    
+    // overflow
+    attr(IJSVGAttributeOverflow, ^(NSString* value) {
+        if([value.lowercaseString isEqualToString:@"hidden"]) {
+            node.overflowVisibility = IJSVGOverflowVisibilityHidden;
+        } else {
+            node.overflowVisibility = IJSVGOverflowVisibilityVisible;
+        }
+    });
+    
+    // is there a title or desc?
+    for(NSXMLElement* childElement in element.children) {
+        IJSVGNodeType type = [IJSVGNode typeForString:childElement.localName
+                                                 kind:childElement.kind];
+        switch(type) {
+            case IJSVGNodeTypeTitle: {
+                node.title = childElement.stringValue;
+                break;
+            }
+            case IJSVGNodeTypeDesc: {
+                node.desc = childElement.stringValue;
+                break;
+            }
+            default: {
+            }
+        }
+    }
 }
 
 - (id)definedObjectForID:(NSString*)anID
@@ -483,25 +591,28 @@
 
 - (BOOL)isFont
 {
-    return [_glyphs count] != 0;
+    return _glyphs != nil && [_glyphs count] != 0;
 }
 
 - (NSArray*)glyphs
 {
-    return _glyphs;
+    return _glyphs ?: @[];
 }
 
 - (void)addSubSVG:(IJSVG*)anSVG
 {
+    if (_svgs == nil) {
+        _svgs = [[NSMutableArray alloc] init];
+    }
     [_svgs addObject:anSVG];
 }
 
 - (NSArray<IJSVG*>*)subSVGs:(BOOL)recursive
 {
     if (recursive == NO) {
-        return _svgs;
+        return _svgs ?: @[];
     }
-    NSMutableArray* svgs = [[[NSMutableArray alloc] init] autorelease];
+    NSMutableArray<IJSVG*>* svgs = [[[NSMutableArray alloc] init] autorelease];
     for (IJSVG* anSVG in svgs) {
         [svgs addObject:anSVG];
         [svgs addObjectsFromArray:[anSVG subSVGs:recursive]];
@@ -509,8 +620,11 @@
     return svgs;
 }
 
-- (void)addGlyph:(IJSVGNode*)glyph
+- (void)addGlyph:(IJSVGPath*)glyph
 {
+    if (_glyphs == nil) {
+        _glyphs = [[NSMutableArray alloc] init];
+    }
     [_glyphs addObject:glyph];
 }
 
@@ -528,9 +642,17 @@
     switch (node.type) {
     // mask
     case IJSVGNodeTypeMask: {
+        node.overflowVisibility = IJSVGOverflowVisibilityHidden;
         node.units = IJSVGUnitObjectBoundingBox;
         break;
     }
+            
+    // clippath
+    case IJSVGNodeTypeClipPath: {
+        node.units = IJSVGUnitObjectBoundingBox;
+        node.overflowVisibility = IJSVGOverflowVisibilityHidden;
+        break;
+    }
 
     // gradient
     case IJSVGNodeTypeRadialGradient:
@@ -581,7 +703,10 @@
             default: {
                 // just a default def, continue on, as we are a def element,
                 // store these seperately to the default ID string ones
-                NSString* defID = [childDef attributeForName:@"id"].stringValue;
+                if (_baseDefNodes == nil) {
+                    _baseDefNodes = [[NSMutableDictionary alloc] init];
+                }
+                NSString* defID = [childDef attributeForName:IJSVGAttributeID].stringValue;
                 if (defID != nil) {
                     _baseDefNodes[defID] = childDef;
                 }
@@ -635,8 +760,8 @@
         // if its a sub svg, we can remove the attributes for x and y
         // this is required or it could go out of bounds before the exporter
         // hits the layers from the groups :)
-        [element removeAttributeForName:@"x"];
+        [element removeAttributeForName:IJSVGAttributeX];
-        [element removeAttributeForName:@"y"];
+        [element removeAttributeForName:IJSVGAttributeY];
 
         // work out the SVG
         NSError* error = nil;
@@ -668,8 +793,8 @@
     case IJSVGNodeTypeGlyph: {
 
         // no path data
-        if ([element attributeForName:(NSString*)IJSVGAttributeD] == nil ||
+        if ([element attributeForName:IJSVGAttributeD] == nil ||
-            [[element attributeForName:(NSString*)IJSVGAttributeD] stringValue].length == 0) {
+            [[element attributeForName:IJSVGAttributeD] stringValue].length == 0) {
             break;
         }
 
@@ -685,14 +810,14 @@
                               ignoreAttributes:nil];
 
         // pass the commands for it
-        [self _parsePathCommandData:[[element attributeForName:(NSString*)IJSVGAttributeD] stringValue]
+        [self _parsePathCommandData:[[element attributeForName:IJSVGAttributeD] stringValue]
                            intoPath:path];
 
         // check the size...
-        if (NSIsEmptyRect([path path].controlPointBounds)) {
+        if (CGRectIsEmpty(path.controlPointBoundingBox) == YES) {
             break;
         }
-
+        
         // add the glyph
         [self addGlyph:path];
         break;
@@ -750,7 +875,7 @@
         [self _parseElementForCommonAttributes:element
                                           node:path
                               ignoreAttributes:nil];
-        [self _parsePathCommandData:[[element attributeForName:(NSString*)IJSVGAttributeD] stringValue]
+        [self _parsePathCommandData:[[element attributeForName:IJSVGAttributeD] stringValue]
                            intoPath:path];
 
         [parentGroup addDef:path];
@@ -819,7 +944,7 @@
         [self _setupDefaultsForNode:path];
         [self _parseElementForCommonAttributes:element
                                           node:path
-                              ignoreAttributes:@[ @"x", @"y" ]];
+                              ignoreAttributes:@[ IJSVGAttributeX, IJSVGAttributeY ]];
         [parentGroup addDef:path];
         break;
     }
@@ -891,7 +1016,7 @@
         // use
     case IJSVGNodeTypeUse: {
 
-        NSString* xlink = [[element attributeForName:(NSString*)IJSVGAttributeXLink] stringValue];
+        NSString* xlink = [[self resolveXLinkAttributeForElement:element] stringValue];
         NSString* xlinkID = [xlink substringFromIndex:1];
         IJSVGNode* node = [self definedObjectForID:xlinkID];
 
@@ -902,7 +1027,7 @@
         }
 
         // due to this being a carbon clone, we need to clear the ID
-        if ([element attributeForName:(NSString*)IJSVGAttributeID] == nil) {
+        if ([element attributeForName:IJSVGAttributeID] == nil) {
             node.identifier = nil;
         }
 
@@ -914,8 +1039,8 @@
         node.intermediateParentNode = subGroup;
 
         // is there a width and height?
-        CGFloat x = [element attributeForName:(NSString*)IJSVGAttributeX].stringValue.floatValue;
+        CGFloat x = [element attributeForName:IJSVGAttributeX].stringValue.floatValue;
-        CGFloat y = [element attributeForName:(NSString*)IJSVGAttributeY].stringValue.floatValue;
+        CGFloat y = [element attributeForName:IJSVGAttributeY].stringValue.floatValue;
 
         // we need to add a transform to the subgroup
         subGroup.transforms = @[ [IJSVGTransform transformByTranslatingX:x y:y] ];
@@ -928,17 +1053,30 @@
         // says ignore x, y, width, height and xlink:href...
         [self _parseElementForCommonAttributes:element
                                           node:node
-                              ignoreAttributes:@[ @"x", @"y", @"width",
+                              ignoreAttributes:@[IJSVGAttributeX, IJSVGAttributeY,
-                                  @"height", @"xlink:href" ]];
+                                                 IJSVGAttributeWidth, IJSVGAttributeHeight,
+                                                 IJSVGAttributeXLink]];
 
         [parentGroup addDef:node];
         break;
     }
+     
+        // stop color
+    case IJSVGNodeTypeStop: {
+        IJSVGNode* node = [[[IJSVGNode alloc] init] autorelease];
+        node.type = IJSVGNodeTypeStop;
+        [self _setupDefaultsForNode:node];
+        [self _parseElementForCommonAttributes:element
+                                          node:node
+                              ignoreAttributes:nil];
+        [parentGroup addChild:node];
+        break;
+    }
 
         // linear gradient
     case IJSVGNodeTypeLinearGradient: {
 
-        NSString* xlink = [[element attributeForName:(NSString*)IJSVGAttributeXLink] stringValue];
+        NSString* xlink = [[self resolveXLinkAttributeForElement:element] stringValue];
         NSString* xlinkID = [xlink substringFromIndex:1];
         NSXMLElement* referenceElement;
         IJSVGNode* node = [self definedObjectForID:xlinkID
@@ -954,6 +1092,9 @@
             [self _parseElementForCommonAttributes:elementCopy
                                               node:grad
                                   ignoreAttributes:nil];
+            [self _parseBlock:elementCopy
+                    intoGroup:grad
+                          def:NO];
             grad.gradient = [IJSVGLinearGradient parseGradient:elementCopy
                                                       gradient:grad];
             [parentGroup addDef:grad];
@@ -966,6 +1107,9 @@
         [self _parseElementForCommonAttributes:element
                                           node:gradient
                               ignoreAttributes:nil];
+        [self _parseBlock:element
+                intoGroup:gradient
+                      def:NO];
         gradient.gradient = [IJSVGLinearGradient parseGradient:element
                                                       gradient:gradient];
         [parentGroup addDef:gradient];
@@ -975,7 +1119,7 @@
         // radial gradient
     case IJSVGNodeTypeRadialGradient: {
 
-        NSString* xlink = [[element attributeForName:(NSString*)IJSVGAttributeXLink] stringValue];
+        NSString* xlink = [[self resolveXLinkAttributeForElement:element] stringValue];
         NSString* xlinkID = [xlink substringFromIndex:1];
         NSXMLElement* referenceElement;
         IJSVGNode* node = [self definedObjectForID:xlinkID
@@ -991,6 +1135,9 @@
             [self _parseElementForCommonAttributes:elementCopy
                                               node:grad
                                   ignoreAttributes:nil];
+            [self _parseBlock:elementCopy
+                    intoGroup:grad
+                          def:NO];
             grad.gradient = [IJSVGRadialGradient parseGradient:elementCopy
                                                       gradient:grad];
             [parentGroup addDef:grad];
@@ -1003,6 +1150,9 @@
         [self _parseElementForCommonAttributes:element
                                           node:gradient
                               ignoreAttributes:nil];
+        [self _parseBlock:element
+                intoGroup:gradient
+                      def:NO];
         gradient.gradient = [IJSVGRadialGradient parseGradient:element
                                                       gradient:gradient];
         [parentGroup addDef:gradient];
@@ -1064,8 +1214,9 @@
                               ignoreAttributes:nil];
 
         // from base64
-        NSString* string = [element attributeForName:(NSString*)IJSVGAttributeXLink].stringValue;
+        NSXMLNode* attributeNode = [self resolveXLinkAttributeForElement:element] ?:
-        [image loadFromBase64EncodedString:string];
+            [element attributeForName:IJSVGAttributeHref];
+        [image loadFromString:attributeNode.stringValue];
 
         // add to parent
         [parentGroup addChild:image];
@@ -1075,6 +1226,17 @@
     }
 }
 
+- (NSXMLNode*)resolveXLinkAttributeForElement:(NSXMLElement*)element
+{
+    NSString* const namespaceURI = @"http://www.w3.org/1999/xlink";
+    NSXMLNode* attributeNode = [element attributeForLocalName:IJSVGAttributeHref
+                                                          URI:namespaceURI];
+    if (attributeNode == nil) {
+        attributeNode = [element attributeForName:IJSVGAttributeXLink];
+    }
+    return attributeNode;
+}
+
 - (NSXMLElement*)mergedElement:(NSXMLElement*)element
           withReferenceElement:(NSXMLElement*)reference
 {
@@ -1104,22 +1266,14 @@
 
 #pragma mark Parser stuff!
 
-- (void)_parsePathCommandData:(NSString*)command
+- (void)_parsePathCommandDataBuffer:(const char*)buffer
-                     intoPath:(IJSVGPath*)path
+                           intoPath:(IJSVGPath*)path
 {
-    // invalid command
+    NSUInteger len = strlen(buffer);
-    if (command == nil || command.length == 0) {
-        return;
-    }
-
-    // allocate memory for the string buffer for reading
-    NSUInteger len = command.length;
     NSUInteger lastIndex = len - 1;
-    const char* buffer = command.UTF8String;
-    
-    // make sure we plus 1 for the null byte
-    char* charBuffer = (char*)malloc(sizeof(char) * (len + 1));
 
+    // make sure we plus 1 for the null byte
+    char* charBuffer = (char*)malloc(sizeof(char)*(len + 1));
     NSInteger start = 0;
     IJSVGCommand* _currentCommand = nil;
     for (NSInteger i = 0; i < len; i++) {
@@ -1130,20 +1284,26 @@
 
             // copy memory from current buffer
             NSInteger index = ((i + 1) - start);
-            memcpy(&charBuffer[0], &buffer[start], sizeof(char) * index);
+            memcpy(&charBuffer[0], &buffer[start], sizeof(char)*index);
             charBuffer[index] = '\0';
 
             // create the command from the substring
-            NSString* commandString = [NSString stringWithUTF8String:charBuffer];
+            unsigned long length = index + 1;
+            size_t mlength = sizeof(char)*length;
+            char* commandString = (char*)malloc(mlength);
+            memcpy(commandString, &charBuffer[0], mlength);
 
             // reset start position
             start = (i + 1);
 
             // previous command is actual subcommand
             IJSVGCommand* previousCommand = _currentCommand.subCommands.lastObject;
-            IJSVGCommand* cCommand = [self _parseCommandString:commandString
+            IJSVGCommand* cCommand = [self _parseCommandStringBuffer:commandString
-                                               previousCommand:previousCommand
+                                                     previousCommand:previousCommand
-                                                      intoPath:path];
+                                                            intoPath:path];
+            
+            // free the memory as at this point, we are done with it
+            (void)free(commandString), commandString = NULL;
 
             // retain the current one
             if (cCommand != nil) {
@@ -1151,12 +1311,26 @@
             }
         }
     }
-    free(charBuffer);
+    (void)free(charBuffer), charBuffer = NULL;
 }
 
-- (IJSVGCommand*)_parseCommandString:(NSString*)string
+- (void)_parsePathCommandData:(NSString*)command
-                     previousCommand:(IJSVGCommand*)previousCommand
+                     intoPath:(IJSVGPath*)path
-                            intoPath:(IJSVGPath*)path
+{
+    // invalid command
+    if (command == nil || command.length == 0) {
+        return;
+    }
+
+    // allocate memory for the string buffer for reading
+    const char* buffer = command.UTF8String;
+    [self _parsePathCommandDataBuffer:buffer
+                             intoPath:path];
+}
+
+- (IJSVGCommand*)_parseCommandStringBuffer:(const char*)buffer
+                           previousCommand:(IJSVGCommand*)previousCommand
+                                  intoPath:(IJSVGPath*)path
 {
     // work out the last command - the reason this is so long is because the command
     // could be a series of the same commands, so work it out by the number of parameters
@@ -1168,9 +1342,10 @@
 
     // main commands
     //    Class commandClass = [IJSVGCommand classFor]
-    Class commandClass = [IJSVGCommand commandClassForCommandChar:[string characterAtIndex:0]];
+    Class commandClass = [IJSVGCommand commandClassForCommandChar:buffer[0]];
-    IJSVGCommand* command = (IJSVGCommand*)[[[commandClass alloc] initWithCommandString:string
+    IJSVGCommand* command = nil;
-                                                                             dataStream:_commandDataStream] autorelease];
+    command = (IJSVGCommand*)[[[commandClass alloc] initWithCommandStringBuffer:buffer
+                                                                     dataStream:_commandDataStream] autorelease];
     for (IJSVGCommand* subCommand in command.subCommands) {
         [command.class runWithParams:subCommand.parameters
                           paramCount:subCommand.parameterCount
@@ -1189,41 +1364,44 @@
     // convert a line into a command,
     // basically MX1 Y1LX2 Y2
     path.primitiveType = kIJSVGPrimitivePathTypeLine;
-    CGFloat x1 = [element attributeForName:(NSString*)IJSVGAttributeX1].stringValue.floatValue;
+    CGFloat x1 = [element attributeForName:IJSVGAttributeX1].stringValue.floatValue;
-    CGFloat y1 = [element attributeForName:(NSString*)IJSVGAttributeY1].stringValue.floatValue;
+    CGFloat y1 = [element attributeForName:IJSVGAttributeY1].stringValue.floatValue;
-    CGFloat x2 = [element attributeForName:(NSString*)IJSVGAttributeX2].stringValue.floatValue;
+    CGFloat x2 = [element attributeForName:IJSVGAttributeX2].stringValue.floatValue;
-    CGFloat y2 = [element attributeForName:(NSString*)IJSVGAttributeY2].stringValue.floatValue;
+    CGFloat y2 = [element attributeForName:IJSVGAttributeY2].stringValue.floatValue;
 
     // use sprintf as its quicker then stringWithFormat...
-    char buffer[50];
+    char* buffer;
-    sprintf(buffer, "M%.2f %.2fL%.2f %.2f", x1, y1, x2, y2);
+    asprintf(&buffer, "M%.2f %.2fL%.2f %.2f", x1, y1, x2, y2);
-    NSString* command = [NSString stringWithCString:buffer
+    [self _parsePathCommandDataBuffer:buffer
-                                           encoding:NSUTF8StringEncoding];
+                             intoPath:path];
-    [self _parsePathCommandData:command
+    (void)free(buffer);
-                       intoPath:path];
 }
 
 - (void)_parseCircle:(NSXMLElement*)element
             intoPath:(IJSVGPath*)path
 {
     path.primitiveType = kIJSVGPrimitivePathTypeCircle;
-    CGFloat cX = [element attributeForName:(NSString*)IJSVGAttributeCX].stringValue.floatValue;
+    CGFloat cX = [element attributeForName:IJSVGAttributeCX].stringValue.floatValue;
-    CGFloat cY = [element attributeForName:(NSString*)IJSVGAttributeCY].stringValue.floatValue;
+    CGFloat cY = [element attributeForName:IJSVGAttributeCY].stringValue.floatValue;
-    CGFloat r = [element attributeForName:(NSString*)IJSVGAttributeR].stringValue.floatValue;
+    CGFloat r = [element attributeForName:IJSVGAttributeR].stringValue.floatValue;
-    NSRect rect = NSMakeRect(cX - r, cY - r, r * 2, r * 2);
+    CGRect rect = CGRectMake(cX - r, cY - r, r * 2, r * 2);
-    path.path = [NSBezierPath bezierPathWithOvalInRect:rect];
+    CGPathRef nPath = CGPathCreateWithEllipseInRect(rect, NULL);
+    path.path = (CGMutablePathRef)nPath;
+    CGPathRelease(nPath);
 }
 
 - (void)_parseEllipse:(NSXMLElement*)element
              intoPath:(IJSVGPath*)path
 {
     path.primitiveType = kIJSVGPrimitivePathTypeEllipse;
-    CGFloat cX = [element attributeForName:(NSString*)IJSVGAttributeCX].stringValue.floatValue;
+    CGFloat cX = [element attributeForName:IJSVGAttributeCX].stringValue.floatValue;
-    CGFloat cY = [element attributeForName:(NSString*)IJSVGAttributeCY].stringValue.floatValue;
+    CGFloat cY = [element attributeForName:IJSVGAttributeCY].stringValue.floatValue;
-    CGFloat rX = [element attributeForName:(NSString*)IJSVGAttributeRX].stringValue.floatValue;
+    CGFloat rX = [element attributeForName:IJSVGAttributeRX].stringValue.floatValue;
-    CGFloat rY = [element attributeForName:(NSString*)IJSVGAttributeRY].stringValue.floatValue;
+    CGFloat rY = [element attributeForName:IJSVGAttributeRY].stringValue.floatValue;
     NSRect rect = NSMakeRect(cX - rX, cY - rY, rX * 2, rY * 2);
-    path.path = [NSBezierPath bezierPathWithOvalInRect:rect];
+    CGPathRef nPath = CGPathCreateWithEllipseInRect(rect, NULL);
+    path.path = (CGMutablePathRef)nPath;
+    CGPathRelease(nPath);
 }
 
 - (void)_parsePolyline:(NSXMLElement*)element
@@ -1248,7 +1426,7 @@
           intoPath:(IJSVGPath*)path
          closePath:(BOOL)closePath
 {
-    NSString* points = [element attributeForName:(NSString*)IJSVGAttributePoints].stringValue;
+    NSString* points = [element attributeForName:IJSVGAttributePoints].stringValue;
     NSInteger count = 0;
     CGFloat* params = [IJSVGUtils commandParameters:points
                                               count:&count];
@@ -1258,23 +1436,49 @@
         free(params);
         return;
     }
-
+    
-    // construct a command
+    const int defBufferSize = 10;
-    NSInteger capacity = count / 2;
+    char* buffer;
-    if (closePath == YES) {
+    asprintf(&buffer, "M%f %f L", params[0], params[1]);
-        capacity += 1;
+    
+    // compute a default buffer - bSize is strlen + 1 for null byte
+    size_t bSize = strlen(buffer) + 1;
+    size_t strLength = bSize - 1;
+    
+    // for every pair of coordinates
+    for(int i = 2; i < count; i+= 2) {
+        char* subbuf;
+        asprintf(&subbuf, "%f %f ", params[i], params[i + 1]);
+        size_t sSize = strlen(subbuf);
+        
+        // if the new size of the string is large than the buffer
+        // increase the buffer up another def size - note, we always
+        // plus 2 incase the close path needs to be appended on the end
+        if((strLength + sSize + 2) > bSize) {
+            size_t nLength = MAX(sSize, defBufferSize) + 2;
+            buffer = realloc(buffer, sizeof(char)*(bSize+nLength));
+            bSize += nLength;
+        }
+        
+        // append the string onto the buffer, increment the
+        // string length and free the subbuffer memory
+        strcat(buffer, subbuf);
+        strLength += sSize;
+        (void)free(subbuf), subbuf = NULL;
     }
-    NSMutableString* str = [[[NSMutableString alloc] initWithCapacity:capacity] autorelease];
+    
-    [str appendFormat:@"M%f,%f L", params[0], params[1]];
+    // append the close path if required
-    for (NSInteger i = 2; i < count; i += 2) {
+    if(closePath == YES) {
-        [str appendFormat:@"%f,%f ", params[i], params[i + 1]];
+        strcat(buffer, "z");
     }
-    if (closePath) {
+    
-        [str appendString:@"z"];
+    // actually perform the parse
-    }
+    [self _parsePathCommandDataBuffer:buffer
-    [self _parsePathCommandData:str
+                             intoPath:path];
-                       intoPath:path];
+    
-    free(params);
+    // free the params
+    (void)free(buffer), buffer = NULL;
+    (void)free(params), params = NULL;
 }
 
 - (void)_parseRect:(NSXMLElement*)element
@@ -1282,27 +1486,28 @@
 {
     path.primitiveType = kIJSVGPrimitivePathTypeRect;
     // width and height
-    CGFloat width = [IJSVGUtils floatValue:[element attributeForName:(NSString*)IJSVGAttributeWidth].stringValue
+    CGFloat width = [IJSVGUtils floatValue:[element attributeForName:IJSVGAttributeWidth].stringValue
                         fallBackForPercent:self.viewBox.size.width];
 
-    CGFloat height = [IJSVGUtils floatValue:[element attributeForName:(NSString*)IJSVGAttributeHeight].stringValue
+    CGFloat height = [IJSVGUtils floatValue:[element attributeForName:IJSVGAttributeHeight].stringValue
                          fallBackForPercent:self.viewBox.size.height];
 
     // rect uses x and y as start of path, not move path object -_-
-    CGFloat x = [IJSVGUtils floatValue:[element attributeForName:(NSString*)IJSVGAttributeX].stringValue
+    CGFloat x = [IJSVGUtils floatValue:[element attributeForName:IJSVGAttributeX].stringValue
                     fallBackForPercent:self.viewBox.size.width];
-    CGFloat y = [IJSVGUtils floatValue:[element attributeForName:(NSString*)IJSVGAttributeY].stringValue
+    CGFloat y = [IJSVGUtils floatValue:[element attributeForName:IJSVGAttributeY].stringValue
                     fallBackForPercent:self.viewBox.size.height];
 
     // radius
-    CGFloat rX = [element attributeForName:(NSString*)IJSVGAttributeRX].stringValue.floatValue;
+    CGFloat rX = [element attributeForName:IJSVGAttributeRX].stringValue.floatValue;
-    CGFloat rY = [element attributeForName:(NSString*)IJSVGAttributeRY].stringValue.floatValue;
+    CGFloat rY = [element attributeForName:IJSVGAttributeRY].stringValue.floatValue;
-    if ([element attributeForName:(NSString*)IJSVGAttributeRY] == nil) {
+    if ([element attributeForName:IJSVGAttributeRY] == nil) {
         rY = rX;
     }
-    path.path = [NSBezierPath bezierPathWithRoundedRect:NSMakeRect(x, y, width, height)
+    CGRect rect = CGRectMake(x, y, width, height);
-                                                xRadius:rX
+    CGPathRef nPath = CGPathCreateWithRoundedRect(rect, rX, rY, NULL);
-                                                yRadius:rY];
+    path.path = (CGMutablePathRef)nPath;
+    CGPathRelease(nPath);
 }
 
 @end

Framework/IJSVG/IJSVG/Source/Rendering/IJSVGLayerTree.h

@@ -6,8 +6,8 @@
 //  Copyright © 2016 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGNode.h"
+#import <IJSVG/IJSVGNode.h>
-#import "IJSVGRenderingStyle.h"
+#import <IJSVG/IJSVGRenderingStyle.h>
 #import <QuartzCore/QuartzCore.h>
 
 @class IJSVGLayer;

Framework/IJSVG/IJSVG/Source/Rendering/IJSVGLayerTree.m

@@ -26,7 +26,6 @@
 
 @implementation IJSVGLayerTree
 
-@synthesize viewBox;
 @synthesize style = _style;
 
 - (void)dealloc
@@ -74,59 +73,40 @@
 
 {
     // any x and y?
-    CGFloat x = [node.x computeValue:layer.frame.size.width];
+    CGRect frame = layer.bounds;
-    CGFloat y = [node.y computeValue:layer.frame.size.height];
+    CGFloat x = [node.x computeValue:frame.size.width];
+    CGFloat y = [node.y computeValue:frame.size.height];
 
-    // do some magic transform
+    // no need to do anything if no transform, or x or y == 0
     if (transforms.count == 0 && x == 0.f && y == 0.f) {
         return layer;
     }
 
+    // simply cascade all the transforms onto the identity
+    CGAffineTransform identity = CGAffineTransformIdentity;
     if (x != 0.f || y != 0.f) {
-        // we must add translate to the stack
+        identity = CGAffineTransformTranslate(identity, x, y);
-        NSMutableArray* trans = nil;
-        if (transforms != nil) {
-            trans = [[transforms mutableCopy] autorelease];
-        } else {
-            trans = [[[NSMutableArray alloc] initWithCapacity:1] autorelease];
-        }
-        [trans addObject:[IJSVGTransform transformByTranslatingX:x y:y]];
-        transforms = trans;
     }
-
+    
-    // add any transforms
+    // this used to be done with each transform being added to its own
-    IJSVGLayer* topLayer = nil;
+    // group layer, but we can simply use one and then apply
-    IJSVGLayer* parentLayer = nil;
+    // the transforms in reverse order, has same outcome with less memory
-
+    IJSVGGroupLayer* parentLayer = [[[IJSVGGroupLayer alloc] init] autorelease];
-    for (IJSVGTransform* transform in transforms) {
+    for(IJSVGTransform* transform in transforms.reverseObjectEnumerator) {
-        // make sure we apply the transform to the parent
+        identity = CGAffineTransformConcat(identity, transform.CGAffineTransform);
-        // so they stack
-        IJSVGGroupLayer* childLayer = [[[IJSVGGroupLayer alloc] init] autorelease];
-        childLayer.affineTransform = transform.CGAffineTransform;
-
-        // add it to the parent layer
-        if (parentLayer != nil) {
-            [parentLayer addSublayer:childLayer];
-        } else {
-            // make sure we keep track of the top most layer
-            topLayer = childLayer;
-        }
-
-        // reset parent layer to the new child
-        parentLayer = childLayer;
     }
-
+    parentLayer.affineTransform = identity;
-    // swap the layer around
     [parentLayer addSublayer:layer];
-    layer = topLayer;
+    return parentLayer;
-    return layer;
 }
 
 - (void)applyDefaultsToLayer:(IJSVGLayer*)layer
                     fromNode:(IJSVGNode*)node
 {
     CGFloat opacity = node.opacity.value;
-    layer.opacity = opacity;
+    if(opacity != 1.f) {
+        layer.opacity = opacity;
+    }
 
     // setup the blending mode
     if (node.blendMode != IJSVGBlendModeNormal) {
@@ -164,14 +144,15 @@
     }
 
     IJSVGGroupLayer* groupLayer = [[[IJSVGGroupLayer alloc] init] autorelease];
-    for (IJSVGNode* node in group.children) {
+    for (IJSVGNode* node in group.childNodes) {
         [groupLayer addSublayer:[self layerForNode:node]];
     }
-    groupLayer.frame = (CGRect){
+    groupLayer.frame = (CGRect) {
         .origin = CGPointZero,
-        .size = (CGSize){
+        .size = (CGSize) {
             .width = group.width.value,
-            .height = group.height.value }
+            .height = group.height.value
+        }
     };
 
     // mask it - forgot groups can have masks too, doh! simple
@@ -204,7 +185,7 @@
     // setup path and layer
     IJSVGShapeLayer* layer = [[[IJSVGShapeLayer alloc] init] autorelease];
     layer.primitiveType = path.primitiveType;
-    CGPathRef introPath = path.CGPath;
+    CGPathRef introPath = path.path;
 
     *originalBoundingBox = CGRectIntegral(CGPathGetBoundingBox(introPath));
     layer.originalPathOrigin = (*originalBoundingBox).origin;
@@ -299,9 +280,14 @@
         NSColor* fColor = path.fillColor;
         BOOL hasColor = (fColor.alphaComponent == 0.f || fColor == nil) == NO;
         BOOL hasFill = path.fillPattern != nil || path.fillGradient != nil;
+        
+        // is there an overriding style in the sheet?
         if (_style.fillColor && (hasFill || hasColor || fColor == nil)) {
             fColor = _style.fillColor;
-        } else if (fColor != nil && path.fillOpacity.value != 1.f) {
+        }
+        
+        // if there is a color, change the opacity if required
+        if (fColor != nil && path.fillOpacity.value != 1.f) {
             fColor = [IJSVGColor changeAlphaOnColor:fColor
                                                  to:path.fillOpacity.value];
         }
@@ -442,7 +428,7 @@
     // the gradient drawing layer
     gradient.colorList = _style.colorList;
     IJSVGGradientLayer* gradLayer = [[[IJSVGGradientLayer alloc] init] autorelease];
-    gradLayer.viewBox = self.viewBox;
+    gradLayer.viewBox = _viewBox;
     gradLayer.frame = layer.bounds;
     gradLayer.gradient = gradient;
     gradLayer.absoluteTransform = [self absoluteTransform:path];
@@ -603,7 +589,9 @@
 
     // dashing
     strokeLayer.lineDashPhase = path.strokeDashOffset.value;
-    strokeLayer.lineDashPattern = [self lineDashPattern:path];
+    if(path.strokeDashArrayCount != 0.f) {
+        strokeLayer.lineDashPattern = [self lineDashPattern:path];
+    }
 
     return strokeLayer;
 }
@@ -616,15 +604,13 @@
         IJSVGGroupLayer* maskLayer = [[[IJSVGGroupLayer alloc] init] autorelease];
 
         // add clip mask
-        if (node.clipPath != nil) {
+        if (node.clipPath != nil && node.clipPath.overflowVisibility == IJSVGOverflowVisibilityHidden) {
             IJSVGLayer* clip = [self layerForNode:node.clipPath];
 
             // adjust the frame
             if (node.clipPath.units == IJSVGUnitObjectBoundingBox) {
                 [self adjustLayer:clip
-                    toParentLayerFrame:layer];
+               toParentLayerFrame:layer];
-            } else {
-                clip.affineTransform = [self absoluteTransform:node];
             }
 
             // add the layer
@@ -632,27 +618,27 @@
         }
 
         // add the actual mask
-        if (node.mask != nil) {
+        if (node.mask != nil && node.mask.overflowVisibility == IJSVGOverflowVisibilityHidden) {
             IJSVGLayer* mask = [self layerForNode:node.mask];
 
             // only move if bounding box
             if (node.mask.units == IJSVGUnitObjectBoundingBox) {
                 [self adjustLayer:mask
-                    toParentLayerFrame:layer];
+               toParentLayerFrame:layer];
-            } else {
-                mask.affineTransform = [self absoluteTransform:node];
             }
 
             // add the layer
             [maskLayer addSublayer:mask];
         }
 
-        // recursive colourize for each item
-        [self _recursiveColorLayersFromLayer:maskLayer
-                                   withColor:[IJSVGColor computeColorSpace:NSColor.whiteColor].CGColor];
-
         // add the mask
-        layer.mask = maskLayer;
+        if(maskLayer.sublayers.count != 0) {
+            // recursive colourize for each item
+            NSColor* color = [IJSVGColor computeColorSpace:NSColor.whiteColor];
+            [self _recursiveColorLayersFromLayer:maskLayer
+                                       withColor:color.CGColor];
+            layer.mask = maskLayer;
+        }
     }
 }
 
@@ -692,54 +678,54 @@
 
 - (NSArray<NSNumber*>*)lineDashPattern:(IJSVGNode*)node
 {
-    NSMutableArray* arr = [[[NSMutableArray alloc] init] autorelease];
+    NSMutableArray* arr = [[[NSMutableArray alloc] initWithCapacity:node.strokeDashArrayCount] autorelease];
     for (NSInteger i = 0; i < node.strokeDashArrayCount; i++) {
         [arr addObject:@((CGFloat)node.strokeDashArray[i])];
     }
-    return [[arr copy] autorelease];
+    return arr;
 }
 
 - (NSString*)lineJoin:(IJSVGLineJoinStyle)joinStyle
 {
     switch (joinStyle) {
-    default:
+        default:
-    case IJSVGLineJoinStyleMiter: {
+        case IJSVGLineJoinStyleMiter: {
-        return kCALineJoinMiter;
+            return kCALineJoinMiter;
-    }
+        }
-    case IJSVGLineJoinStyleBevel: {
+        case IJSVGLineJoinStyleBevel: {
-        return kCALineJoinBevel;
+            return kCALineJoinBevel;
-    }
+        }
-    case IJSVGLineJoinStyleRound: {
+        case IJSVGLineJoinStyleRound: {
-        return kCALineJoinRound;
+            return kCALineJoinRound;
-    }
+        }
     }
 }
 
 - (NSString*)lineCap:(IJSVGLineCapStyle)capStyle
 {
     switch (capStyle) {
-    default:
+        default:
-    case IJSVGLineCapStyleButt: {
+        case IJSVGLineCapStyleButt: {
-        return kCALineCapButt;
+            return kCALineCapButt;
-    }
+        }
-    case IJSVGLineCapStyleRound: {
+        case IJSVGLineCapStyleRound: {
-        return kCALineCapRound;
+            return kCALineCapRound;
-    }
+        }
-    case IJSVGLineCapStyleSquare: {
+        case IJSVGLineCapStyleSquare: {
-        return kCALineCapSquare;
+            return kCALineCapSquare;
-    }
+        }
     }
 }
 
 - (NSString*)fillRule:(IJSVGWindingRule)rule
 {
     switch (rule) {
-    case IJSVGWindingRuleEvenOdd: {
+        case IJSVGWindingRuleEvenOdd: {
-        return kCAFillRuleEvenOdd;
+            return kCAFillRuleEvenOdd;
-    }
+        }
-    default: {
+        default: {
-        return kCAFillRuleNonZero;
+            return kCAFillRuleNonZero;
-    }
+        }
     }
 }
 

Framework/IJSVG/IJSVG/Source/Rendering/IJSVGRenderingStyle.h

@@ -6,8 +6,8 @@
 //  Copyright © 2019 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGColorList.h"
+#import <IJSVG/IJSVGColorList.h>
-#import "IJSVGNode.h"
+#import <IJSVG/IJSVGNode.h>
 #import <AppKit/AppKit.h>
 #import <Foundation/Foundation.h>
 #import <objc/runtime.h>

Framework/IJSVG/IJSVG/Source/Rendering/IJSVGRenderingStyle.m

@@ -10,13 +10,6 @@
 
 @implementation IJSVGRenderingStyle
 
-@synthesize colorList = _colorList;
-@synthesize lineCapStyle = _lineCapStyle;
-@synthesize lineJoinStyle = _lineJoinStyle;
-@synthesize lineWidth = _lineWidth;
-@synthesize fillColor = _fillColor;
-@synthesize strokeColor = _strokeColor;
-
 - (void)dealloc
 {
     (void)([_fillColor release]), _fillColor = nil;

Framework/IJSVG/IJSVG/Source/Stylesheets/IJSVGStyle.h

@@ -6,7 +6,7 @@
 //  Copyright (c) 2014 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGColor.h"
+#import <IJSVG/IJSVGColor.h>
 #import <Foundation/Foundation.h>
 
 @interface IJSVGStyle : NSObject {

Framework/IJSVG/IJSVG/Source/Stylesheets/IJSVGStyle.m

@@ -91,7 +91,7 @@
 
 + (NSArray*)allowedColourKeys
 {
-    return @[ @"fill", @"stroke-colour", @"stop-color", @"stroke" ];
+    return @[ @"fill", @"stroke-color", @"stop-color", @"stroke" ];
 }
 
 - (void)setProperties:(NSDictionary*)properties

Framework/IJSVG/IJSVG/Source/Stylesheets/IJSVGStyleSheet.h

@@ -6,8 +6,8 @@
 //  Copyright © 2016 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGStyleSheetRule.h"
+#import <IJSVG/IJSVGStyleSheetRule.h>
-#import "IJSVGStyleSheetSelector.h"
+#import <IJSVG/IJSVGStyleSheetSelector.h>
 #import <Foundation/Foundation.h>
 
 @class IJSVGNode;

Framework/IJSVG/IJSVG/Source/Stylesheets/IJSVGStyleSheet.m

@@ -11,9 +11,6 @@
 #import "IJSVGStyleSheet.h"
 
 @interface IJSVGStyleSheetSelectorListItem : NSObject {
-
-    IJSVGStyleSheetSelector* selector;
-    IJSVGStyleSheetRule* rule;
 }
 
 @property (nonatomic, retain) IJSVGStyleSheetRule* rule;
@@ -23,12 +20,11 @@
 
 @implementation IJSVGStyleSheetSelectorListItem
 
-@synthesize rule, selector;
 
 - (void)dealloc
 {
-    (void)([rule release]), rule = nil;
+    (void)([_rule release]), _rule = nil;
-    (void)([selector release]), selector = nil;
+    (void)([_selector release]), _selector = nil;
     [super dealloc];
 }
 

Framework/IJSVG/IJSVG/Source/Stylesheets/IJSVGStyleSheetRule.h

@@ -6,16 +6,13 @@
 //  Copyright © 2016 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGStyle.h"
+#import <IJSVG/IJSVGStyle.h>
-#import "IJSVGStyleSheetSelector.h"
+#import <IJSVG/IJSVGStyleSheetSelector.h>
 #import <Foundation/Foundation.h>
 
 @class IJSVGNode;
 
 @interface IJSVGStyleSheetRule : NSObject {
-
-    NSArray* selectors;
-    IJSVGStyle* style;
 }
 
 @property (nonatomic, retain) NSArray* selectors;

Framework/IJSVG/IJSVG/Source/Stylesheets/IJSVGStyleSheetRule.m

@@ -10,12 +10,10 @@
 
 @implementation IJSVGStyleSheetRule
 
-@synthesize selectors, style;
-
 - (void)dealloc
 {
-    (void)([selectors release]), selectors = nil;
+    (void)([_selectors release]), _selectors = nil;
-    (void)([style release]), style = nil;
+    (void)([_style release]), _style = nil;
     [super dealloc];
 }
 
@@ -24,7 +22,7 @@
 {
     // interate over each select and work out if
     // it allows us to be applied
-    for (IJSVGStyleSheetSelector* selector in selectors) {
+    for (IJSVGStyleSheetSelector* selector in _selectors) {
         if ([selector matchesNode:node]) {
             *matchedSelector = selector;
             return YES;

Framework/IJSVG/IJSVG/Source/Stylesheets/IJSVGStyleSheetSelector.h

@@ -6,7 +6,7 @@
 //  Copyright © 2016 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGStyleSheetSelectorRaw.h"
+#import <IJSVG/IJSVGStyleSheetSelectorRaw.h>
 #import <Foundation/Foundation.h>
 
 @class IJSVGNode;
@@ -14,7 +14,7 @@
 @interface IJSVGStyleSheetSelector : NSObject {
 
     NSString* selector;
-    NSUInteger specificity;
+    
 @private
     NSMutableArray* _rawSelectors;
 }

Framework/IJSVG/IJSVG/Source/Stylesheets/IJSVGStyleSheetSelector.m

@@ -16,8 +16,6 @@
 #define SPECIFICITY_CLASS 10
 #define SPECIFICITY_IDENTIFIER 100
 
-@synthesize specificity;
-
 BOOL IJSVGStyleSheetIsSiblingCombinator(IJSVGStyleSheetSelectorCombinator combinator)
 {
     return combinator == IJSVGStyleSheetSelectorCombinatorNextSibling ||
@@ -43,11 +41,11 @@ IJSVGNode * IJSVGStyleSheetPreviousNode(IJSVGNode * node)
     IJSVGGroup * group = (IJSVGGroup *)node.parentNode;
     if([group isKindOfClass:[IJSVGGroup class]] == NO)
         return nil;
-    NSInteger currentIndex = [group.children indexOfObject:node];
+    NSInteger currentIndex = [group.childNodes indexOfObject:node];
     if(currentIndex == 0) {
         return nil;
     }
-    return group.children[currentIndex-1];
+    return group.childNodes[currentIndex-1];
 };
 
 IJSVGNode * IJSVGStyleSheetNextNode(IJSVGNode * node)
@@ -56,11 +54,11 @@ IJSVGNode * IJSVGStyleSheetNextNode(IJSVGNode * node)
     if([group isKindOfClass:[IJSVGGroup class]] == NO) {
         return nil;
     }
-    NSInteger currentIndex = [group.children indexOfObject:node];
+    NSInteger currentIndex = [group.childNodes indexOfObject:node];
-    if(currentIndex == group.children.count-1) {
+    if(currentIndex == group.childNodes.count-1) {
         return nil;
     }
-    return group.children[currentIndex+1];
+    return group.childNodes[currentIndex+1];
 };
 
 IJSVGStyleSheetSelectorRaw * IJSVGStyleSheetPreviousSelector(IJSVGStyleSheetSelectorRaw * aSelector, NSArray * _rawSelectors)
@@ -149,7 +147,7 @@ BOOL IJSVGStyleSheetMatchSelector(IJSVGNode * node, IJSVGStyleSheetSelectorRaw *
                 }
                 
                 // grab the children
-                NSArray * nodes = parentNode.children;
+                NSArray * nodes = parentNode.childNodes;
                 NSInteger index = [nodes indexOfObject:aNode];
                 
                 // doesnt contain the child
@@ -228,7 +226,7 @@ BOOL IJSVGStyleSheetMatchSelector(IJSVGNode * node, IJSVGStyleSheetSelectorRaw *
                 // matches the next selector and... contains the node in question
                 IJSVGStyleSheetSelectorRaw * s = IJSVGStyleSheetNextSelector(aSelector,_rawSelectors);
                 if(IJSVGStyleSheetMatchSelector(parentNode, s) &&
-                   [parentNode.children containsObject:aNode]) {
+                   [parentNode.childNodes containsObject:aNode]) {
                     // set the new starting selector and node
                     aSelector = s;
                     aNode = parentNode;
@@ -276,15 +274,16 @@ BOOL IJSVGStyleSheetMatchSelector(IJSVGNode * node, IJSVGStyleSheetSelectorRaw *
         
         // 1 for a tag
         if(rawSelector.tag != nil) {
-            self.specificity += SPECIFICITY_TAG;
+            _specificity += SPECIFICITY_TAG;
         }
         
         // 100 for a id
-        if(rawSelector.identifier != nil)
+        if(rawSelector.identifier != nil) {
-            self.specificity += SPECIFICITY_IDENTIFIER;
+            _specificity += SPECIFICITY_IDENTIFIER;
+        }
         
         // 10 for a class
-        self.specificity += (rawSelector.classes.count*SPECIFICITY_CLASS);
+        _specificity += (rawSelector.classes.count*SPECIFICITY_CLASS);
     }
 }
 

Framework/IJSVG/IJSVG/Source/Stylesheets/IJSVGStyleSheetSelectorRaw.h

@@ -18,14 +18,9 @@ typedef NS_ENUM(NSUInteger, IJSVGStyleSheetSelectorCombinator) {
 };
 
 @interface IJSVGStyleSheetSelectorRaw : NSObject {
-
+    
-    NSString* tag;
+@private
-    NSString* identifier;
-
     NSMutableArray* classes;
-
-    IJSVGStyleSheetSelectorCombinator combinator;
-    NSString* combinatorString;
 }
 
 @property (nonatomic, copy) NSString* tag;

Framework/IJSVG/IJSVG/Source/Stylesheets/IJSVGStyleSheetSelectorRaw.m

@@ -10,14 +10,14 @@
 
 @implementation IJSVGStyleSheetSelectorRaw
 
-@synthesize classes, identifier, tag, combinator, combinatorString;
+@synthesize classes;
 
 - (void)dealloc
 {
     (void)([classes release]), classes = nil;
-    (void)([identifier release]), identifier = nil;
+    (void)([_identifier release]), _identifier = nil;
-    (void)([tag release]), tag = nil;
+    (void)([_tag release]), _tag = nil;
-    (void)([combinatorString release]), combinatorString = nil;
+    (void)([_combinatorString release]), _combinatorString = nil;
     [super dealloc];
 }
 
@@ -25,8 +25,8 @@
 {
     if ((self = [super init]) != nil) {
         classes = [[NSMutableArray alloc] init];
-        combinator = IJSVGStyleSheetSelectorCombinatorDescendant;
+        _combinator = IJSVGStyleSheetSelectorCombinatorDescendant;
-        combinatorString = @" ";
+        _combinatorString = @" ";
     }
     return self;
 }
@@ -38,7 +38,8 @@
 
 - (NSString*)description
 {
-    return [NSString stringWithFormat:@"Combinator: %@, Tag: %@, Classes: %@, Identifier: %@", combinatorString, tag, classes, identifier];
+    return [NSString stringWithFormat:@"Combinator: %@, Tag: %@, Classes: %@, Identifier: %@",
+            _combinatorString, _tag, classes, _identifier];
 }
 
 @end

Framework/IJSVG/IJSVG/Source/Utils/IJSVGGradientUnitLength.h

@@ -6,7 +6,7 @@
 //  Copyright © 2017 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGUnitLength.h"
+#import <IJSVG/IJSVGUnitLength.h>
 
 @interface IJSVGGradientUnitLength : IJSVGUnitLength
 

Framework/IJSVG/IJSVG/Source/Utils/IJSVGMath.m

@@ -7,6 +7,7 @@
 //
 
 #import "IJSVGMath.h"
+#import "IJSVGCommandParser.h"
 
 @implementation IJSVGMath
 

Framework/IJSVG/IJSVG/Source/Utils/IJSVGParsing.h

@@ -0,0 +1,25 @@
+//
+//  IJSVGParsing.h
+//  IJSVG
+//
+//  Created by Curtis Hard on 04/02/2021.
+//  Copyright © 2021 Curtis Hard. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+
+typedef struct {
+    char* name;
+    char* parameters;
+} IJSVGParsingStringMethod;
+
+IJSVGParsingStringMethod* IJSVGParsingStringMethodCreate(void);
+void IJSVGParsingStringMethodRelease(IJSVGParsingStringMethod* stringMethod);
+IJSVGParsingStringMethod** IJSVGParsingMethodParseString(const char* string,
+                                                         NSUInteger* count);
+void IJSVGParsingStringMethodsRelease(IJSVGParsingStringMethod** methods,
+                                      NSUInteger count);
+
+@interface IJSVGParsing : NSObject
+
+@end

Framework/IJSVG/IJSVG/Source/Utils/IJSVGParsing.m

@@ -0,0 +1,127 @@
+//
+//  IJSVGParsing.m
+//  IJSVG
+//
+//  Created by Curtis Hard on 04/02/2021.
+//  Copyright © 2021 Curtis Hard. All rights reserved.
+//
+
+#import "IJSVGParsing.h"
+#import "IJSVGUtils.h"
+
+IJSVGParsingStringMethod* IJSVGParsingStringMethodCreate(void)
+{
+    IJSVGParsingStringMethod* method = (IJSVGParsingStringMethod*)malloc(sizeof(IJSVGParsingStringMethod));
+    method->name = NULL;
+    method->parameters = NULL;
+    return method;
+}
+
+void IJSVGParsingStringMethodRelease(IJSVGParsingStringMethod* stringMethod)
+{
+    if(stringMethod->name != NULL) {
+        (void)free(stringMethod->name), stringMethod->name = NULL;
+    }
+    if(stringMethod->parameters != NULL) {
+        (void)free(stringMethod->parameters), stringMethod->parameters = NULL;
+    }
+    if(stringMethod != NULL) {
+        (void)free(stringMethod), stringMethod = NULL;
+    }
+}
+
+void IJSVGParsingStringMethodsRelease(IJSVGParsingStringMethod** methods,
+                                      NSUInteger count)
+{
+    for(int i = 0; i < count; i++) {
+        IJSVGParsingStringMethodRelease(methods[i]);
+    }
+    (void)free(methods), methods = NULL;
+}
+
+IJSVGParsingStringMethod** IJSVGParsingMethodParseString(const char* string,
+                                                         NSUInteger* count)
+{
+    const char* charString = string;
+    unsigned long length = strlen(string);
+    char* buffer = (char*)calloc(sizeof(char), length);
+    char* originBuffer = buffer;
+    int bufferIndex = 0;
+    
+    const size_t defBufferSize = 5;
+    size_t currentBufferSize = defBufferSize;
+    NSUInteger methodCount = 0;
+    
+    IJSVGParsingStringMethod* method = NULL;
+    IJSVGParsingStringMethod** methods = NULL;
+    methods = (IJSVGParsingStringMethod**)malloc(sizeof(IJSVGParsingStringMethod*)*currentBufferSize);
+    
+    // each command requires a name and parameters, store for later use
+    for(int i = 0; i < length; i++) {
+        char currentChar = *charString++;
+        
+        // start of params - store the command name as its current in the buffer
+        if(currentChar == '(') {
+            // rest the pointer to beginning
+            buffer = originBuffer;
+            
+            //write here
+            if(method == NULL) {
+                method = IJSVGParsingStringMethodCreate();
+                method->name = (char*)calloc(sizeof(char),bufferIndex+1);
+                memcpy(method->name, buffer, sizeof(char)*bufferIndex);
+                IJSVGTrimCharBuffer(method->name);
+            }
+            
+            // write null up until the limit we reached
+            memset(buffer, '\0', bufferIndex);
+            bufferIndex = 0;
+            continue;
+        }
+        
+        // end of params - store the params into the buffer
+        if(currentChar == ')') {
+            // rest the pointer to beginning
+            buffer = originBuffer;
+        
+            // there has to be a method at this point, if not, something is wrong
+            // in the syntax
+            if(method != NULL) {
+                method->parameters = (char*)calloc(sizeof(char),bufferIndex+1);
+                memcpy(method->parameters, buffer, sizeof(char)*bufferIndex);
+                IJSVGTrimCharBuffer(method->parameters);
+                
+                // now we can add
+                if(methodCount + 1 > currentBufferSize) {
+                    currentBufferSize += defBufferSize;
+                    *methods = *(IJSVGParsingStringMethod**)realloc(methods, sizeof(IJSVGParsingStringMethod*)*currentBufferSize);
+                }
+                methods[methodCount++] = method;
+                method = NULL;
+            }
+            
+            // write null up until the limit we reached
+            memset(buffer, '\0', bufferIndex);
+            bufferIndex = 0;
+            continue;
+        }
+        
+        // increment the buffer count
+        *buffer++ = currentChar;
+        bufferIndex++;
+    }
+    
+    // left over
+    if(method != NULL) {
+        (void)IJSVGParsingStringMethodRelease(method), method = NULL;
+    }
+    
+    buffer = originBuffer;
+    *count = methodCount;
+    (void)free(buffer), buffer = NULL;
+    return methods;
+}
+
+@implementation IJSVGParsing
+
+@end

Framework/IJSVG/IJSVG/Source/Utils/IJSVGTransaction.h

@@ -10,5 +10,5 @@
 #import <QuartzCore/QuartzCore.h>
 
 BOOL IJSVGIsMainThread(void);
-void IJSVGBeginTransactionLock(void);
+BOOL IJSVGBeginTransaction(void);
-void IJSVGEndTransactionLock(void);
+void IJSVGEndTransaction(void);

Framework/IJSVG/IJSVG/Source/Utils/IJSVGTransaction.m

@@ -7,16 +7,25 @@
 //
 
 #import "IJSVGTransaction.h"
+#import <AppKit/AppKit.h>
 
 BOOL IJSVGIsMainThread(void) { return NSThread.isMainThread; };
 
-void IJSVGBeginTransactionLock(void)
+BOOL IJSVGBeginTransaction(void)
 {
+    if(IJSVGIsMainThread() == YES) {
+        return NO;
+    }
+    // use nsanimationcontext as this sets a private flag of 0x4
+    // of the catransaction for background composites
     [CATransaction begin];
     [CATransaction setDisableActions:YES];
+    [CATransaction lock];
+    return YES;
 };
 
-void IJSVGEndTransactionLock(void)
+void IJSVGEndTransaction(void)
 {
+    [CATransaction unlock];
     [CATransaction commit];
 };

Framework/IJSVG/IJSVG/Source/Utils/IJSVGTransform.h

@@ -6,7 +6,7 @@
 //  Copyright (c) 2014 Curtis Hard. All rights reserved.
 //
 
-#import "IJSVGUtils.h"
+#import <IJSVG/IJSVGUtils.h>
 #import <Foundation/Foundation.h>
 
 @class IJSVGTransform;
@@ -14,7 +14,7 @@
 typedef CGFloat (^IJSVGTransformParameterModifier)(NSInteger index, CGFloat value);
 typedef void (^IJSVGTransformApplyBlock)(IJSVGTransform* transform);
 
-typedef NS_OPTIONS(NSInteger, IJSVGTransformCommand) {
+typedef NS_ENUM(NSInteger, IJSVGTransformCommand) {
     IJSVGTransformCommandMatrix,
     IJSVGTransformCommandTranslate,
     IJSVGTransformCommandTranslateX,
@@ -27,11 +27,6 @@ typedef NS_OPTIONS(NSInteger, IJSVGTransformCommand) {
 };
 
 @interface IJSVGTransform : NSObject {
-
-    IJSVGTransformCommand command;
-    CGFloat* parameters;
-    NSInteger parameterCount;
-    NSInteger sort;
 }
 
 @property (nonatomic, assign) IJSVGTransformCommand command;
@@ -43,10 +38,15 @@ void IJSVGApplyTransform(NSArray<IJSVGTransform*>* transforms, IJSVGTransformApp
 CGAffineTransform IJSVGConcatTransforms(NSArray<IJSVGTransform*>* transforms);
 NSString* IJSVGTransformAttributeString(CGAffineTransform transform);
 
++ (NSArray<NSDictionary*>*)affineTransformToSVGTransformComponents:(CGAffineTransform)transform;
++ (NSString*)affineTransformToSVGTransformComponentString:(CGAffineTransform)transform
+                                     floatingPointOptions:(IJSVGFloatingPointOptions)floatingPointOptions;
++ (NSString*)affineTransformToSVGTransformComponentString:(CGAffineTransform)transform;
 + (NSArray<IJSVGTransform*>*)transformsFromAffineTransform:(CGAffineTransform)affineTransform;
-+ (NSArray*)transformsForString:(NSString*)string;
++ (NSArray<IJSVGTransform*>*)transformsForString:(NSString*)string;
-+ (NSBezierPath*)transformedPath:(IJSVGPath*)path;
 + (NSString*)affineTransformToSVGMatrixString:(CGAffineTransform)affineTransform;
++ (NSString*)affineTransformToSVGMatrixString:(CGAffineTransform)transform
+                         floatingPointOptions:(IJSVGFloatingPointOptions)floatingPointOptions;
 - (CGAffineTransform)CGAffineTransform;
 - (CGAffineTransform)CGAffineTransformWithModifier:(IJSVGTransformParameterModifier)modifier;
 - (CGAffineTransform)stackIdentity:(CGAffineTransform)identity;

Framework/IJSVG/IJSVG/Source/Utils/IJSVGTransform.m

@@ -8,28 +8,24 @@
 
 #import "IJSVGMath.h"
 #import "IJSVGTransform.h"
+#import "IJSVGParsing.h"
 
 @implementation IJSVGTransform
 
-@synthesize command;
-@synthesize parameters;
-@synthesize parameterCount;
-@synthesize sort;
-
 - (void)dealloc
 {
-    free(parameters);
+    (void)free(_parameters);
     [super dealloc];
 }
 
 - (id)copyWithZone:(NSZone*)zone
 {
     IJSVGTransform* trans = [[self.class alloc] init];
-    trans.command = self.command;
+    trans.command = _command;
-    trans.parameters = (CGFloat*)malloc(sizeof(CGFloat) * self.parameterCount);
+    trans.parameters = (CGFloat*)malloc(sizeof(CGFloat) * _parameterCount);
-    trans.sort = sort;
+    trans.sort = _sort;
-    trans.parameterCount = self.parameterCount;
+    trans.parameterCount = _parameterCount;
-    memcpy(trans.parameters, self.parameters, sizeof(CGFloat) * self.parameterCount);
+    memcpy(trans.parameters, _parameters, sizeof(CGFloat) * _parameterCount);
     return trans;
 }
 
@@ -83,19 +79,49 @@ void IJSVGApplyTransform(NSArray<IJSVGTransform*>* transforms, IJSVGTransformApp
 - (void)recalculateWithBounds:(CGRect)bounds
 {
     CGFloat max = bounds.size.width > bounds.size.height ? bounds.size.width : bounds.size.height;
-    switch (self.command) {
+    switch (_command) {
     case IJSVGTransformCommandRotate: {
-        if (self.parameterCount == 1) {
+        if (_parameterCount == 1) {
             return;
         }
-        self.parameters[1] = self.parameters[1] * max;
+        _parameters[1] = _parameters[1] * max;
-        self.parameters[2] = self.parameters[2] * max;
+        _parameters[2] = _parameters[2] * max;
     }
     default:
         return;
     }
 }
 
++ (IJSVGTransformCommand)commandForCommandCString:(char*)str
+{
+    IJSVGCharBufferToLower(str);
+    if (strcmp(str, "matrix") == 0) {
+        return IJSVGTransformCommandMatrix;
+    }
+    if (strcmp(str, "translate") == 0) {
+        return IJSVGTransformCommandTranslate;
+    }
+    if (strcmp(str, "translatex") == 0) {
+        return IJSVGTransformCommandTranslateX;
+    }
+    if (strcmp(str, "translatey") == 0) {
+        return IJSVGTransformCommandTranslateY;
+    }
+    if (strcmp(str, "scale") == 0) {
+        return IJSVGTransformCommandScale;
+    }
+    if (strcmp(str, "skewx") == 0) {
+        return IJSVGTransformCommandSkewX;
+    }
+    if (strcmp(str, "skewy") == 0) {
+        return IJSVGTransformCommandSkewY;
+    }
+    if (strcmp(str, "rotate") == 0) {
+        return IJSVGTransformCommandRotate;
+    }
+    return IJSVGTransformCommandNotImplemented;
+}
+
 + (IJSVGTransformCommand)commandForCommandString:(NSString*)str
 {
     str = str.lowercaseString;
@@ -137,188 +163,76 @@ void IJSVGApplyTransform(NSArray<IJSVGTransform*>* transforms, IJSVGTransformApp
     return 10;
 }
 
-+ (NSArray*)transformsForString:(NSString*)string
++ (NSArray<IJSVGTransform*>*)transformsForString:(NSString*)string
 {
-    static NSRegularExpression* _reg = nil;
+    NSMutableArray<IJSVGTransform*>* transforms = nil;
-    static dispatch_once_t onceToken;
+    transforms = [[[NSMutableArray alloc] init] autorelease];
-    dispatch_once(&onceToken, ^{
+    
-        _reg = [[NSRegularExpression alloc] initWithPattern:@"([a-zA-Z]+)\\(([^\\)]+)\\)"
+    const char* charString = string.UTF8String;
-                                                    options:0
+    IJSVGParsingStringMethod** methods = NULL;
-                                                      error:nil];
+    NSUInteger count = 0;
-    });
+    methods = IJSVGParsingMethodParseString(charString, &count);
-    NSMutableArray* transforms = [[[NSMutableArray alloc] init] autorelease];
+    for(int i = 0; i < count; i++) {
-    @autoreleasepool {
+        IJSVGParsingStringMethod* method = methods[i];
-        [_reg enumerateMatchesInString:string
+        IJSVGTransformCommand commandType;
-                               options:0
+        commandType = [self.class commandForCommandCString:method->name];
-                                 range:NSMakeRange(0, string.length)
+        if(commandType == IJSVGTransformCommandNotImplemented) {
-                            usingBlock:^(NSTextCheckingResult* result, NSMatchingFlags flags, BOOL* stop) {
+            (void)IJSVGParsingStringMethodRelease(method), method = NULL;
-                                NSString* command = [string substringWithRange:[result rangeAtIndex:1]];
+            continue;
-                                IJSVGTransformCommand commandType = [self.class commandForCommandString:command];
+        }
-                                if (commandType == IJSVGTransformCommandNotImplemented) {
+        
-                                    return;
+        // create a new transform object and parse the parameters
-                                }
+        NSInteger count = 0;
+        IJSVGTransform* transform = [[[self.class alloc] init] autorelease];
+        transform.command = commandType;
+        transform.sort = [self.class sortForTransformCommand:commandType];
+        transform.parameters = [IJSVGUtils scanFloatsFromCString:method->parameters
+                                                            size:&count];
+        transform.parameterCount = count;
 
-                                // create the transform
+        // add to the list of transforms to return
-                                NSString* params = [string substringWithRange:[result rangeAtIndex:2]];
+        [transforms addObject:transform];
-                                IJSVGTransform* transform = [[[self.class alloc] init] autorelease];
+        (void)IJSVGParsingStringMethodRelease(method), method = NULL;
-                                NSInteger count = 0;
-                                transform.command = commandType;
-                                transform.parameters = [IJSVGUtils commandParameters:params
-                                                                               count:&count];
-                                transform.parameterCount = count;
-                                transform.sort = [self.class sortForTransformCommand:commandType];
-                                [transforms addObject:transform];
-                            }];
     }
+    (void)free(methods), methods = NULL;
     return transforms;
 }
 
-+ (NSBezierPath*)transformedPath:(IJSVGPath*)path
-{
-    if (path.transforms.count == 0) {
-        return path.path;
-    }
-    NSBezierPath* cop = [[path.path copy] autorelease];
-    for (IJSVGTransform* transform in path.transforms) {
-        NSAffineTransform* at = NSAffineTransform.transform;
-        switch (transform.command) {
-        // matrix
-        case IJSVGTransformCommandMatrix: {
-            at.transformStruct = (NSAffineTransformStruct){
-                .m11 = transform.parameters[0],
-                .m12 = transform.parameters[1],
-                .m21 = transform.parameters[2],
-                .m22 = transform.parameters[3],
-                .tX = transform.parameters[4],
-                .tY = transform.parameters[5],
-            };
-            break;
-        }
-
-        // skewX
-        case IJSVGTransformCommandSkewX: {
-            CGFloat degrees = transform.parameters[0];
-            CGFloat radians = degrees * M_PI / 180.f;
-            at.transformStruct = (NSAffineTransformStruct){
-                .m11 = 1.f,
-                .m12 = 0.f,
-                .m21 = tan(radians),
-                .m22 = 1.f,
-                .tX = 0.f,
-                .tY = 0.f
-            };
-            break;
-        }
-
-        // skewX
-        case IJSVGTransformCommandSkewY: {
-            CGFloat degrees = transform.parameters[0];
-            CGFloat radians = degrees * M_PI / 180.f;
-            at.transformStruct = (NSAffineTransformStruct){
-                .m11 = 1.f,
-                .m12 = tan(radians),
-                .m21 = 0.f,
-                .m22 = 1.f,
-                .tX = 0.f,
-                .tY = 0.f
-            };
-            break;
-        }
-
-        // translate
-        case IJSVGTransformCommandTranslate: {
-            if (transform.parameterCount == 1)
-                [at translateXBy:transform.parameters[0]
-                             yBy:0];
-            else
-                [at translateXBy:transform.parameters[0]
-                             yBy:transform.parameters[1]];
-            break;
-        }
-
-        // translateX
-        case IJSVGTransformCommandTranslateX: {
-            [at translateXBy:transform.parameters[0] yBy:0.f];
-            break;
-        }
-
-        // translateY
-        case IJSVGTransformCommandTranslateY: {
-            [at translateXBy:0.f yBy:transform.parameters[0]];
-            break;
-        }
-
-        // scale
-        case IJSVGTransformCommandScale: {
-            if (transform.parameterCount == 1)
-                [at scaleBy:transform.parameters[0]];
-            else
-                [at scaleXBy:transform.parameters[0]
-                         yBy:transform.parameters[1]];
-            break;
-        }
-
-        // rotate
-        case IJSVGTransformCommandRotate: {
-            if (transform.parameterCount == 1)
-                [at rotateByDegrees:transform.parameters[0]];
-            else {
-                CGFloat centerX = transform.parameters[1];
-                CGFloat centerY = transform.parameters[2];
-                CGFloat angle = transform.parameters[0] * (M_PI / 180.f);
-                [at translateXBy:centerX
-                             yBy:centerY];
-                [at rotateByRadians:angle];
-                [at translateXBy:-1.f * centerX
-                             yBy:-1.f * centerY];
-            }
-            break;
-        }
-
-        // do nothing
-        case IJSVGTransformCommandNotImplemented: {
-        }
-        }
-        [cop transformUsingAffineTransform:at];
-    }
-    return cop;
-}
-
 - (CGAffineTransform)CGAffineTransform
 {
-    return [self CGAffineTransformWithModifier:nil];
+    return [self stackIdentity:CGAffineTransformIdentity];
 }
 
 - (CGAffineTransform)stackIdentity:(CGAffineTransform)identity
 {
-    switch (self.command) {
+    switch (_command) {
 
     // translate
     case IJSVGTransformCommandTranslate: {
-        if (self.parameterCount == 1) {
+        if (_parameterCount == 1) {
-            return CGAffineTransformTranslate(identity, self.parameters[0], 0.f);
+            return CGAffineTransformTranslate(identity, _parameters[0], 0.f);
         }
-        return CGAffineTransformTranslate(identity, self.parameters[0], self.parameters[1]);
+        return CGAffineTransformTranslate(identity, _parameters[0], _parameters[1]);
     }
 
     // translateX
     case IJSVGTransformCommandTranslateX: {
-        return CGAffineTransformTranslate(identity, self.parameters[0], 0.f);
+        return CGAffineTransformTranslate(identity, _parameters[0], 0.f);
     }
 
     // translateY
     case IJSVGTransformCommandTranslateY: {
-        return CGAffineTransformTranslate(identity, 0.f, self.parameters[0]);
+        return CGAffineTransformTranslate(identity, 0.f, _parameters[0]);
     }
 
     // rotate
     case IJSVGTransformCommandRotate: {
-        if (self.parameterCount == 1) {
+        if (_parameterCount == 1) {
-            return CGAffineTransformRotate(identity, (self.parameters[0] / 180) * M_PI);
+            return CGAffineTransformRotate(identity, (_parameters[0] / 180) * M_PI);
         }
-        CGFloat p0 = self.parameters[0];
+        CGFloat p0 = _parameters[0];
-        CGFloat p1 = self.parameters[1];
+        CGFloat p1 = _parameters[1];
-        CGFloat p2 = self.parameters[2];
+        CGFloat p2 = _parameters[2];
         CGFloat angle = p0 * (M_PI / 180.f);
 
         identity = CGAffineTransformTranslate(identity, p1, p2);
@@ -328,35 +242,35 @@ void IJSVGApplyTransform(NSArray<IJSVGTransform*>* transforms, IJSVGTransformApp
 
     // scale
     case IJSVGTransformCommandScale: {
-        CGFloat p0 = self.parameters[0];
+        CGFloat p0 = _parameters[0];
-        if (self.parameterCount == 1) {
+        if (_parameterCount == 1) {
             return CGAffineTransformScale(identity, p0, p0);
         }
-        CGFloat p1 = self.parameters[1];
+        CGFloat p1 = _parameters[1];
         return CGAffineTransformScale(identity, p0, p1);
     }
 
     // matrix
     case IJSVGTransformCommandMatrix: {
-        CGFloat p0 = self.parameters[0];
+        CGFloat p0 = _parameters[0];
-        CGFloat p1 = self.parameters[1];
+        CGFloat p1 = _parameters[1];
-        CGFloat p2 = self.parameters[2];
+        CGFloat p2 = _parameters[2];
-        CGFloat p3 = self.parameters[3];
+        CGFloat p3 = _parameters[3];
-        CGFloat p4 = self.parameters[4];
+        CGFloat p4 = _parameters[4];
-        CGFloat p5 = self.parameters[5];
+        CGFloat p5 = _parameters[5];
         return CGAffineTransformMake(p0, p1, p2, p3, p4, p5);
     }
 
     // skewX
     case IJSVGTransformCommandSkewX: {
-        CGFloat degrees = self.parameters[0];
+        CGFloat degrees = _parameters[0];
         CGFloat radians = degrees * M_PI / 180.f;
         return CGAffineTransformMake(1.f, 0.f, tan(radians), 1.f, 0.f, 0.f);
     }
 
     // skewY
     case IJSVGTransformCommandSkewY: {
-        CGFloat degrees = self.parameters[0];
+        CGFloat degrees = _parameters[0];
         CGFloat radians = degrees * M_PI / 180.f;
         return CGAffineTransformMake(1.f, tan(radians), 0.f, 1.f, 0.f, 0.f);
     }
@@ -370,15 +284,15 @@ void IJSVGApplyTransform(NSArray<IJSVGTransform*>* transforms, IJSVGTransformApp
 
 - (CGAffineTransform)CGAffineTransformWithModifier:(IJSVGTransformParameterModifier)modifier
 {
-    switch (self.command) {
+    switch (_command) {
     // matrix
     case IJSVGTransformCommandMatrix: {
-        CGFloat p0 = self.parameters[0];
+        CGFloat p0 = _parameters[0];
-        CGFloat p1 = self.parameters[1];
+        CGFloat p1 = _parameters[1];
-        CGFloat p2 = self.parameters[2];
+        CGFloat p2 = _parameters[2];
-        CGFloat p3 = self.parameters[3];
+        CGFloat p3 = _parameters[3];
-        CGFloat p4 = self.parameters[4];
+        CGFloat p4 = _parameters[4];
-        CGFloat p5 = self.parameters[5];
+        CGFloat p5 = _parameters[5];
         if (modifier != nil) {
             p0 = modifier(0, p0);
             p1 = modifier(1, p1);
@@ -392,11 +306,11 @@ void IJSVGApplyTransform(NSArray<IJSVGTransform*>* transforms, IJSVGTransformApp
 
     // translate
     case IJSVGTransformCommandTranslate: {
-        CGFloat p0 = self.parameters[0];
+        CGFloat p0 = _parameters[0];
-        if (self.parameterCount == 1) {
+        if (_parameterCount == 1) {
             return CGAffineTransformMakeTranslation(p0, 0);
         }
-        CGFloat p1 = self.parameters[1];
+        CGFloat p1 = _parameters[1];
         if (modifier != nil) {
             p0 = modifier(0, p0);
             p1 = modifier(1, p1);
@@ -406,7 +320,7 @@ void IJSVGApplyTransform(NSArray<IJSVGTransform*>* transforms, IJSVGTransformApp
 
     // translateX
     case IJSVGTransformCommandTranslateX: {
-        CGFloat p0 = self.parameters[0];
+        CGFloat p0 = _parameters[0];
         if (modifier != nil) {
             p0 = modifier(0, p0);
         }
@@ -415,7 +329,7 @@ void IJSVGApplyTransform(NSArray<IJSVGTransform*>* transforms, IJSVGTransformApp
 
     // translateY
     case IJSVGTransformCommandTranslateY: {
-        CGFloat p0 = self.parameters[0];
+        CGFloat p0 = _parameters[0];
         if (modifier != nil) {
             p0 = modifier(0, p0);
         }
@@ -424,11 +338,11 @@ void IJSVGApplyTransform(NSArray<IJSVGTransform*>* transforms, IJSVGTransformApp
 
     // scale
     case IJSVGTransformCommandScale: {
-        CGFloat p0 = self.parameters[0];
+        CGFloat p0 = _parameters[0];
-        if (self.parameterCount == 1) {
+        if (_parameterCount == 1) {
             return CGAffineTransformMakeScale(p0, p0);
         }
-        CGFloat p1 = self.parameters[1];
+        CGFloat p1 = _parameters[1];
         if (modifier != nil) {
             p0 = modifier(0, p0);
             p1 = modifier(1, p1);
@@ -438,7 +352,7 @@ void IJSVGApplyTransform(NSArray<IJSVGTransform*>* transforms, IJSVGTransformApp
 
     // skewX
     case IJSVGTransformCommandSkewX: {
-        CGFloat degrees = self.parameters[0];
+        CGFloat degrees = _parameters[0];
         if (modifier != nil) {
             degrees = modifier(0, degrees);
         }
@@ -448,7 +362,7 @@ void IJSVGApplyTransform(NSArray<IJSVGTransform*>* transforms, IJSVGTransformApp
 
     // skewY
     case IJSVGTransformCommandSkewY: {
-        CGFloat degrees = self.parameters[0];
+        CGFloat degrees = _parameters[0];
         if (modifier != nil) {
             degrees = modifier(0, degrees);
         }
@@ -458,12 +372,12 @@ void IJSVGApplyTransform(NSArray<IJSVGTransform*>* transforms, IJSVGTransformApp
 
     // rotate
     case IJSVGTransformCommandRotate: {
-        if (self.parameterCount == 1) {
+        if (_parameterCount == 1) {
-            return CGAffineTransformMakeRotation((self.parameters[0] / 180) * M_PI);
+            return CGAffineTransformMakeRotation((_parameters[0] / 180) * M_PI);
         } else {
-            CGFloat p0 = self.parameters[0];
+            CGFloat p0 = _parameters[0];
-            CGFloat p1 = self.parameters[1];
+            CGFloat p1 = _parameters[1];
-            CGFloat p2 = self.parameters[2];
+            CGFloat p2 = _parameters[2];
             if (modifier != nil) {
                 p0 = modifier(0, p0);
                 p1 = modifier(1, p1);
@@ -493,15 +407,199 @@ void IJSVGApplyTransform(NSArray<IJSVGTransform*>* transforms, IJSVGTransformApp
     return [self transformsForString:matrix];
 }
 
++ (NSString*)affineTransformToSVGTransformComponentString:(CGAffineTransform)transform
+                                     floatingPointOptions:(IJSVGFloatingPointOptions)floatingPointOptions
+{
+    NSArray<NSDictionary*>* trans = [self affineTransformToSVGTransformComponents:transform];
+    trans = [self filterUselessAffineTransformComponents:trans];
+    NSMutableArray<NSString*>* strings = [[[NSMutableArray alloc] initWithCapacity:trans.count] autorelease];
+    for (NSDictionary* dict in trans) {
+        NSArray<NSNumber*>* data = dict[@"data"];
+        NSString* method = dict[@"name"];
+        NSMutableArray* dataStrings = [[[NSMutableArray alloc] initWithCapacity:data.count] autorelease];
+        for (NSNumber* number in data) {
+            [dataStrings addObject:IJSVGShortFloatStringWithOptions(number.floatValue,
+                                                                    floatingPointOptions)];
+        }
+        [strings addObject:[NSString stringWithFormat:@"%@(%@)", method,
+                                     IJSVGCompressFloatParameterArray(dataStrings)]];
+    }
+    NSString* componentsString = [strings componentsJoinedByString:@" "];
+    NSString* matrixString = [self affineTransformToSVGMatrixString:transform
+                                               floatingPointOptions:floatingPointOptions];
+    return componentsString.length < matrixString.length ? componentsString : matrixString;
+}
+
++ (NSString*)affineTransformToSVGTransformComponentString:(CGAffineTransform)transform
+{
+    NSArray<NSDictionary*>* trans = [self affineTransformToSVGTransformComponents:transform];
+    trans = [self filterUselessAffineTransformComponents:trans];
+    NSMutableArray<NSString*>* strings = [[[NSMutableArray alloc] initWithCapacity:trans.count] autorelease];
+    for (NSDictionary* dict in trans) {
+        NSArray<NSNumber*>* data = dict[@"data"];
+        NSString* method = dict[@"name"];
+        NSMutableArray* dataStrings = [[[NSMutableArray alloc] initWithCapacity:data.count] autorelease];
+        for (NSNumber* number in data) {
+            [dataStrings addObject:IJSVGShortFloatString(number.floatValue)];
+        }
+        [strings addObject:[NSString stringWithFormat:@"%@(%@)", method,
+                                     IJSVGCompressFloatParameterArray(dataStrings)]];
+    }
+    NSString* componentsString = [strings componentsJoinedByString:@" "];
+    NSString* matrixString = [self affineTransformToSVGMatrixString:transform];
+    return componentsString.length < matrixString.length ? componentsString : matrixString;
+}
+
++ (NSString*)affineTransformToSVGMatrixString:(CGAffineTransform)transform
+                         floatingPointOptions:(IJSVGFloatingPointOptions)floatingPointOptions
+{
+    NSArray<NSString*>* numbers = @[
+        IJSVGShortFloatStringWithOptions(transform.a, floatingPointOptions),
+        IJSVGShortFloatStringWithOptions(transform.b, floatingPointOptions),
+        IJSVGShortFloatStringWithOptions(transform.c, floatingPointOptions),
+        IJSVGShortFloatStringWithOptions(transform.d, floatingPointOptions),
+        IJSVGShortFloatStringWithOptions(transform.tx, floatingPointOptions),
+        IJSVGShortFloatStringWithOptions(transform.ty, floatingPointOptions)
+    ];
+    return [NSString stringWithFormat:@"matrix(%@)", IJSVGCompressFloatParameterArray(numbers)];
+}
+
 + (NSString*)affineTransformToSVGMatrixString:(CGAffineTransform)transform
 {
-    return [NSString stringWithFormat:@"matrix(%@ %@ %@ %@ %@ %@)",
+    NSArray<NSString*>* numbers = @[
-                     IJSVGShortFloatString(transform.a),
+        IJSVGShortFloatString(transform.a),
-                     IJSVGShortFloatString(transform.b),
+        IJSVGShortFloatString(transform.b),
-                     IJSVGShortFloatString(transform.c),
+        IJSVGShortFloatString(transform.c),
-                     IJSVGShortFloatString(transform.d),
+        IJSVGShortFloatString(transform.d),
-                     IJSVGShortFloatString(transform.tx),
+        IJSVGShortFloatString(transform.tx),
-                     IJSVGShortFloatString(transform.ty)];
+        IJSVGShortFloatString(transform.ty)
+    ];
+    return [NSString stringWithFormat:@"matrix(%@)",
+                     IJSVGCompressFloatParameterArray(numbers)];
+}
+
++ (NSArray<NSDictionary*>*)filterUselessAffineTransformComponents:(NSArray<NSDictionary*>*)components
+{
+    NSMutableArray* comps = [[[NSMutableArray alloc] initWithCapacity:components.count] autorelease];
+    NSArray<NSString*>* names = @[ @"translate", @"rotate", @"skewX", @"skewY" ];
+    for (NSDictionary* transform in components) {
+        NSString* name = transform[@"name"];
+        NSArray<NSNumber*>* data = transform[@"data"];
+        if ([names containsObject:name] && (data.count == 1 || [name isEqualToString:@"rotate"]) && data[0].floatValue == 0.f) {
+            continue;
+        } else if ([name isEqualToString:@"translate"] && data[0].floatValue == 0.f && data[1].floatValue == 0.f) {
+            continue;
+        } else if ([name isEqualToString:@"scale"] && data[0].floatValue == 1.f && (data.count < 2 || (data.count == 2 && data[1].floatValue == 1.f))) {
+            continue;
+        } else if ([name isEqualToString:@"matrix"] && data[0].floatValue == 1.f && data[3].floatValue == 1.f && !(data[1].floatValue != 0.f || data[2].floatValue != 0.f || data[4].floatValue != 0.f || data[5].floatValue != 0.f)) {
+            continue;
+        }
+        [comps addObject:transform];
+    }
+    return comps;
+}
+
++ (NSArray<NSDictionary*>*)affineTransformToSVGTransformComponents:(CGAffineTransform)transform
+{
+    const NSUInteger precision = 5;
+    CGFloat data[6] = {
+        IJSVGMathToFixed(transform.a, precision),
+        IJSVGMathToFixed(transform.b, precision),
+        IJSVGMathToFixed(transform.c, precision),
+        IJSVGMathToFixed(transform.d, precision),
+        IJSVGMathToFixed(transform.tx, precision),
+        IJSVGMathToFixed(transform.ty, precision)
+    };
+
+    CGFloat sx = IJSVGMathToFixed(hypotf(data[0], data[1]), precision);
+    CGFloat sy = IJSVGMathToFixed(((data[0] * data[3] - data[1] * data[2]) / sx), precision);
+    CGFloat colSum = data[0] * data[2] + data[1] * data[3];
+    CGFloat rowSum = data[0] * data[1] + data[2] * data[3];
+    BOOL scaleBefore = rowSum != 0.f || sx == sy;
+
+    NSMutableArray* transforms = [[[NSMutableArray alloc] init] autorelease];
+
+    // tx, ty -> translate
+    if (data[4] != 0.f || data[5] != 0.f) {
+        [transforms addObject:@{
+            @"name" : @"translate",
+            @"data" : @[ @(data[4]), @(data[5]) ]
+        }];
+    }
+
+    // [sx, 0, tan(a).sy, sy, 0, 0] -> skewX(a).scale(sx,sy)
+    if (data[1] == 0.f && data[2] != 0.f) {
+        [transforms addObject:@{
+            @"name" : @"skewX",
+            @"data" : @[ @(IJSVGMathToFixed(IJSVGMathAtan(data[2] / sy), precision)) ]
+        }];
+
+        // [sx, sy.tan(a), 0, sy, 0, 0] -> skewX(a).scale(sx, sy)
+    } else if (data[1] != 0.f && data[2] == 0.f) {
+        [transforms addObject:@{
+            @"name" : @"skewY",
+            @"data" : @[ @(IJSVGMathToFixed(IJSVGMathAtan(data[1] / data[0]), precision)) ]
+        }];
+        sx = data[0];
+        sy = data[3];
+    } else if (colSum == 0.f || (sx == 1.f && sy == 1.f) || !scaleBefore) {
+        if (!scaleBefore) {
+            sx = (data[0] < 0.f ? -1.f : 1.f) * hypotf(data[0], data[2]);
+            sy = (data[3] < 0.f ? -1.f : 1.f) * hypotf(data[1], data[3]);
+            if (sx != 1.f || sy != 1.f) {
+                [transforms addObject:@{
+                    @"name" : @"scale",
+                    @"data" : (sx == sy) ? @[ @(sx) ] : @[ @(sx), @(sy) ]
+                }];
+            }
+        }
+
+        CGFloat angle = MIN(MAX(-1.f, data[0] / sx), 1.f);
+        NSMutableArray<NSNumber*>* rotate = [[[NSMutableArray alloc] initWithCapacity:3] autorelease];
+        [rotate addObject:@(IJSVGMathToFixed(IJSVGMathAcos(angle), precision) * ((scaleBefore ? 1.f : sy) * data[1] < 0.f ? -1.f : 1.f))];
+
+        if (rotate[0].floatValue != 0.f) {
+            [transforms addObject:@{
+                @"name" : @"rotate",
+                @"data" : rotate
+            }];
+        }
+
+        if (rowSum != 0.f && colSum != 0.f) {
+            [transforms addObject:@{
+                @"name" : @"skewX",
+                @"data" : @[ @(IJSVGMathToFixed(IJSVGMathAtan(colSum / (sx * sx)), precision)) ]
+            }];
+        }
+
+        // rotate can consume translate
+        if (rotate[0].floatValue != 0.f && (data[4] != 0.f || data[5] != 0.f)) {
+            [transforms removeObjectAtIndex:0];
+            CGFloat cos = data[0] / sx;
+            CGFloat sin = data[1] / (scaleBefore ? sx : sy);
+            CGFloat x = data[4] * (scaleBefore ? 1.f : sy);
+            CGFloat y = data[5] * (scaleBefore ? 1.f : sx);
+            CGFloat denom = (powf(1.f - cos, 2.f) + powf(sin, 2.f)) * (scaleBefore ? 1.f : (sx * sy));
+            [rotate addObject:@(((1.f - cos) * x - sin * y) / denom)];
+            [rotate addObject:@(((1.f - cos) * y + sin * x) / denom)];
+        }
+    } else if (data[1] != 0.f || data[2] != 0.f) {
+        NSDictionary* trans = @{
+            @"name" : @"matrix",
+            @"data" : @[ @(data[0]), @(data[1]), @(data[2]), @(data[3]), @(data[4]), @(data[5]) ]
+        };
+        return @[ trans ];
+    }
+
+    if (scaleBefore == YES && ((sx != 1.f || sy != 1.f) || transforms.count == 0)) {
+        NSDictionary* trans = @{
+            @"name" : @"scale",
+            @"data" : (sx == sy) ? @[ @(sx) ] : @[ @(sx), @(sy) ]
+        };
+        [transforms addObject:trans];
+    }
+
+    return transforms;
 }
 
 - (NSString*)description

Framework/IJSVG/IJSVG/Source/Utils/IJSVGUnitLength.h

@@ -8,9 +8,20 @@
 
 #import <Foundation/Foundation.h>
 
+typedef struct {
+    BOOL round;
+    int precision;
+} IJSVGFloatingPointOptions;
+
 typedef NS_ENUM(NSInteger, IJSVGUnitLengthType) {
     IJSVGUnitLengthTypeNumber,
-    IJSVGUnitLengthTypePercentage
+    IJSVGUnitLengthTypePercentage,
+    IJSVGUnitLengthTypeCM,
+    IJSVGUnitLengthTypeMM,
+    IJSVGUnitLengthTypeIN,
+    IJSVGUnitLengthTypePT,
+    IJSVGUnitLengthTypePC,
+    IJSVGUnitLengthTypePX
 };
 
 typedef NS_ENUM(NSInteger, IJSVGUnitType) {
@@ -22,6 +33,7 @@ typedef NS_ENUM(NSInteger, IJSVGUnitType) {
 @interface IJSVGUnitLength : NSObject
 
 @property (nonatomic, assign) IJSVGUnitLengthType type;
+@property (nonatomic, assign) IJSVGUnitLengthType originalType;
 @property (nonatomic, assign) CGFloat value;
 @property (nonatomic, assign) BOOL inherit;
 
@@ -38,5 +50,6 @@ typedef NS_ENUM(NSInteger, IJSVGUnitType) {
 - (CGFloat)valueAsPercentage;
 - (CGFloat)computeValue:(CGFloat)anotherValue;
 - (NSString*)stringValue;
+- (NSString*)stringValueWithFloatingPointOptions:(IJSVGFloatingPointOptions)options;
 
 @end

Framework/IJSVG/IJSVG/Source/Utils/IJSVGUnitLength.m

@@ -12,10 +12,6 @@
 
 @implementation IJSVGUnitLength
 
-@synthesize value;
-@synthesize type;
-@synthesize inherit;
-
 + (IJSVGUnitLength*)unitWithFloat:(CGFloat)number
 {
     IJSVGUnitLength* unit = [[[self alloc] init] autorelease];
@@ -55,23 +51,143 @@
     return unit;
 }
 
++ (IJSVGUnitLengthType)typeForCString:(const char*)chars
+{
+    if(IJSVGCharBufferHasSuffix((char*)chars, "%")) {
+        return IJSVGUnitLengthTypePercentage;
+    }
+    if(IJSVGCharBufferHasSuffix((char*)chars, "cm")) {
+        return IJSVGUnitLengthTypeCM;
+    }
+    if(IJSVGCharBufferHasSuffix((char*)chars, "mm")) {
+        return IJSVGUnitLengthTypeMM;
+    }
+    if(IJSVGCharBufferHasSuffix((char*)chars, "in")) {
+        return IJSVGUnitLengthTypeIN;
+    }
+    if(IJSVGCharBufferHasSuffix((char*)chars, "pt")) {
+        return IJSVGUnitLengthTypePT;
+    }
+    if(IJSVGCharBufferHasSuffix((char*)chars, "pc")) {
+        return IJSVGUnitLengthTypePC;
+    }
+    if(IJSVGCharBufferHasSuffix((char*)chars, "px")) {
+        return IJSVGUnitLengthTypePX;
+    }
+    return IJSVGUnitLengthTypeNumber;
+}
+
++ (IJSVGUnitLengthType)typeForString:(NSString*)string
+{
+    if([string hasSuffix:@"%"] == YES) {
+        return IJSVGUnitLengthTypePercentage;
+    }
+    if([string hasSuffix:@"cm"] == YES) {
+        return IJSVGUnitLengthTypeCM;
+    }
+    if([string hasSuffix:@"mm"] == YES) {
+        return IJSVGUnitLengthTypeMM;
+    }
+    if([string hasSuffix:@"in"] == YES) {
+        return IJSVGUnitLengthTypeIN;
+    }
+    if([string hasSuffix:@"pt"] == YES) {
+        return IJSVGUnitLengthTypePT;
+    }
+    if([string hasSuffix:@"pc"] == YES) {
+        return IJSVGUnitLengthTypePC;
+    }
+    if([string hasSuffix:@"px"] == YES) {
+        return IJSVGUnitLengthTypePX;
+    }
+    return IJSVGUnitLengthTypeNumber;
+}
+
++ (CGFloat)convertUnitValue:(CGFloat)unit
+   toBaseFromUnitLengthType:(IJSVGUnitLengthType)type
+{
+    switch(type) {
+        case IJSVGUnitLengthTypeCM: {
+            return unit * (96.f / 2.54f);
+        }
+        case IJSVGUnitLengthTypeMM: {
+            return [self convertUnitValue:unit
+                 toBaseFromUnitLengthType:IJSVGUnitLengthTypeCM] / 10.f;
+        }
+        case IJSVGUnitLengthTypePercentage: {
+            return unit / 100.f;
+        }
+        case IJSVGUnitLengthTypeIN: {
+            // 1in = 96px
+            return unit * 96.f;
+        }
+        case IJSVGUnitLengthTypePT: {
+            // 1pt = 1.333...px
+            return unit * 1.3333333f;
+        }
+        case IJSVGUnitLengthTypePC: {
+            // 1pc = 16px
+            return unit * 16.f;
+        }
+        default:
+            break;
+    }
+    return unit;
+}
+
 + (IJSVGUnitLength*)unitWithString:(NSString*)string
 {
     // just return noting for inherit, node will deal
     // with the rest...hopefully
-    NSCharacterSet* cSet = NSCharacterSet.whitespaceCharacterSet;
+    if(string == nil) {
-    string = [string stringByTrimmingCharactersInSet:cSet];
-
-    if ([string isEqualToString:@"inherit"]) {
         return nil;
     }
+    
+    char* chars = IJSVGTimmedCharBufferCreate(string.UTF8String);
 
+    // is inherit or just nothing
+    size_t strl = strlen(chars);
+    if (strcmp(chars, "inherit") == 0 || strl == 0) {
+        (void)free(chars), chars = NULL;
+        return nil;
+    }
+    
+    // grab the float value from the string
+    NSInteger length;
+    CGFloat* floats = [IJSVGUtils scanFloatsFromCString:chars
+                                             floatCount:1
+                                              charCount:(NSUInteger)strl
+                                                   size:&length];
+    // not sure how this ended up but nothing returned
+    // even though there should had been
+    if(length == 0) {
+        (void)free(floats), floats = NULL;
+        return nil;
+    }
+    
     IJSVGUnitLength* unit = [[[self alloc] init] autorelease];
-    unit.value = string.floatValue;
+    unit.value = floats[0];
     unit.type = IJSVGUnitLengthTypeNumber;
-    if ([string hasSuffix:@"%"] == YES) {
+    
-        unit.value /= 100.f;
+    
-        unit.type = IJSVGUnitLengthTypePercentage;
+    IJSVGUnitLengthType type = [self typeForCString:chars];
+    unit.originalType = type;
+    
+    // memory free
+    (void)(free(floats)), floats = NULL;
+    (void)free(chars), chars = NULL;
+    
+    switch(type) {
+        case IJSVGUnitLengthTypePercentage: {
+            unit.value = [self convertUnitValue:unit.value
+                       toBaseFromUnitLengthType:type];
+            unit.type = IJSVGUnitLengthTypePercentage;
+            break;
+        }
+        default:
+            unit.value = [self convertUnitValue:unit.value
+                       toBaseFromUnitLengthType:type];
+            break;
     }
     return unit;
 }
@@ -79,7 +195,7 @@
 - (CGFloat)computeValue:(CGFloat)anotherValue
 {
     if (self.type == IJSVGUnitLengthTypePercentage) {
-        return ((anotherValue / 100.f) * (self.value * 100.f));
+        return ((anotherValue / 100.f) * (_value * 100.f));
     }
     return self.value;
 }
@@ -92,15 +208,25 @@
 - (NSString*)stringValue
 {
     if (self.type == IJSVGUnitLengthTypePercentage) {
-        return [NSString stringWithFormat:@"%@%%", IJSVGShortFloatString(self.value * 100.f)];
+        return [NSString stringWithFormat:@"%@%%",
+                         IJSVGShortFloatString(self.value * 100.f)];
     }
     return IJSVGShortFloatString(self.value);
 }
 
+- (NSString*)stringValueWithFloatingPointOptions:(IJSVGFloatingPointOptions)options
+{
+    if (_type == IJSVGUnitLengthTypePercentage) {
+        return [NSString stringWithFormat:@"%@%%",
+                         IJSVGShortFloatStringWithOptions(_value * 100.f, options)];
+    }
+    return IJSVGShortFloatStringWithOptions(_value, options);
+}
+
 - (NSString*)description
 {
     return [NSString stringWithFormat:@"%f%@",
-                     self.value, (self.type == IJSVGUnitLengthTypePercentage ? @"%" : @"")];
+                     _value, (_value == IJSVGUnitLengthTypePercentage ? @"%" : @"")];
 }
 
 @end

Framework/IJSVG/IJSVG/Source/Utils/IJSVGUnitPoint.h

@@ -0,0 +1,17 @@
+//
+//  IJSVGUnitPoint.h
+//  IJSVG
+//
+//  Created by Curtis Hard on 12/02/2020.
+//  Copyright © 2020 Curtis Hard. All rights reserved.
+//
+
+#import <IJSVG/IJSVGUnitLength.h>
+#import <Foundation/Foundation.h>
+
+@interface IJSVGUnitPoint : NSObject
+
+@property (nonatomic, retain) IJSVGUnitLength* x;
+@property (nonatomic, retain) IJSVGUnitLength* y;
+
+@end

Framework/IJSVG/IJSVG/Source/Utils/IJSVGUnitPoint.m

@@ -0,0 +1,29 @@
+//
+//  IJSVGUnitPoint.m
+//  IJSVG
+//
+//  Created by Curtis Hard on 12/02/2020.
+//  Copyright © 2020 Curtis Hard. All rights reserved.
+//
+
+#import "IJSVGUnitPoint.h"
+
+@implementation IJSVGUnitPoint
+
+- (void)dealloc
+{
+    (void)[_x release], _x = nil;
+    (void)[_y release], _y = nil;
+    [super dealloc];
+}
+
++ (IJSVGUnitPoint*)pointWithX:(IJSVGUnitLength*)x
+                            y:(IJSVGUnitLength*)y
+{
+    IJSVGUnitPoint* point = [[[self alloc] init] autorelease];
+    point.x = x;
+    point.y = y;
+    return point;
+}
+
+@end

Framework/IJSVG/IJSVG/Source/Utils/IJSVGUnitRect.h

@@ -0,0 +1,21 @@
+//
+//  IJSVGUnitRect.h
+//  IJSVG
+//
+//  Created by Curtis Hard on 12/02/2020.
+//  Copyright © 2020 Curtis Hard. All rights reserved.
+//
+
+#import <IJSVG/IJSVGUnitPoint.h>
+#import <IJSVG/IJSVGUnitSize.h>
+#import <Foundation/Foundation.h>
+
+@interface IJSVGUnitRect : NSObject
+
+@property (nonatomic, retain) IJSVGUnitSize* size;
+@property (nonatomic, retain) IJSVGUnitPoint* origin;
+
++ (IJSVGUnitRect*)rectWithOrigin:(IJSVGUnitPoint*)origin
+                            size:(IJSVGUnitSize*)size;
+
+@end

Framework/IJSVG/IJSVG/Source/Utils/IJSVGUnitRect.m

@@ -0,0 +1,29 @@
+//
+//  IJSVGUnitRect.m
+//  IJSVG
+//
+//  Created by Curtis Hard on 12/02/2020.
+//  Copyright © 2020 Curtis Hard. All rights reserved.
+//
+
+#import "IJSVGUnitRect.h"
+
+@implementation IJSVGUnitRect
+
+- (void)dealloc
+{
+    (void)[_size release], _size = nil;
+    (void)[_origin release], _origin = nil;
+    [super dealloc];
+}
+
++ (IJSVGUnitRect*)rectWithOrigin:(IJSVGUnitPoint*)origin
+                            size:(IJSVGUnitSize*)size
+{
+    IJSVGUnitRect* rect = [[[self alloc] init] autorelease];
+    rect.origin = origin;
+    rect.size = size;
+    return rect;
+}
+
+@end