Fixes URL parsing and scaling for gradients

source/IJSVG.m

@@ -339,7 +339,7 @@
 - (void)_setupBasicsFromAnyInitializer
 {
     self.clipToViewport = YES;
-    self.renderQuality = IJSVGRenderQualityOptimized;
+    self.renderQuality = IJSVGRenderQualityFullResolution;
     
     // setup low level backing scale
     _lastProposedBackingScale = 0.f;
@@ -719,6 +719,10 @@
         scale = 1.f;
     }
     
+    // make sure we multiple the scale by the scale of the rendered clip
+    // or it will be blurry for gradients and other bitmap drawing
+    scale = (_scale * scale);
+    
     // dont do anything, nothing has changed, no point of iterating over
     // every layer for no reason!
     if(scale == _lastProposedBackingScale && renderQuality == _lastProposedRenderQuality) {

source/IJSVGGradientLayer.m

@@ -65,11 +65,11 @@
 {
     switch (self.renderQuality) {
         case IJSVGRenderQualityOptimized: {
-            backingScaleFactor = .35f;
+            backingScaleFactor = (backingScaleFactor * .35f);
             break;
         }
         case IJSVGRenderQualityLow: {
-            backingScaleFactor = .05f;
+            backingScaleFactor = (backingScaleFactor * .05f);
             break;
         }
         default: {

source/IJSVGUtils.m

@@ -235,10 +235,18 @@ CGFloat degrees_to_radians( CGFloat degrees )
 
 + (NSString *)defURL:(NSString *)string
 {
+    // insta check for URL
+    NSCharacterSet * set = NSCharacterSet.whitespaceCharacterSet;
+    string = [string stringByTrimmingCharactersInSet:set];
+    NSString * check = [string substringToIndex:3].lowercaseString;
+    if([check isEqualToString:@"url"] == NO) {
+        return nil;
+    }
+    
     static NSRegularExpression * _reg = nil;
     static dispatch_once_t onceToken;
     dispatch_once(&onceToken, ^{
-        _reg = [[NSRegularExpression alloc] initWithPattern:@"url\\s?\\(\\s?#(.*?)\\)\\;?"
+        _reg = [[NSRegularExpression alloc] initWithPattern:@"url\\(['\"]?([^)]+?)['\"]?\\)"
                                                     options:0
                                                       error:nil];
     });
@@ -246,11 +254,15 @@ CGFloat degrees_to_radians( CGFloat degrees )
     [_reg enumerateMatchesInString:string
                            options:0
                              range:NSMakeRange( 0, string.length )
-                        usingBlock:^(NSTextCheckingResult *result, NSMatchingFlags flags, BOOL *stop)
-     {
-         if( ( foundID = [string substringWithRange:[result rangeAtIndex:1]] ) != nil )
+                        usingBlock:^(NSTextCheckingResult *result,
+                                     NSMatchingFlags flags, BOOL *stop) {
+         if((foundID = [string substringWithRange:[result rangeAtIndex:1]]) != nil) {
              *stop = YES;
+         }
      }];
+    if([foundID hasPrefix:@"#"] == YES) {
+        foundID = [foundID substringFromIndex:1];
+    }
     return foundID;
 }