Add method to consume characters up-to a given string in Input Stream Reader

HTMLKit/HTMLInputStreamReader.h

@@ -31,6 +31,7 @@
 - (BOOL)consumeHexInt:(unsigned int *)result;
 - (BOOL)consumeString:(NSString *)string caseSensitive:(BOOL)caseSensitive;
 - (NSString *)consumeCharactersUpToCharactersInString:(NSString *)characters;
+- (NSString *)consumeCharactersUpToString:(NSString *)string;
 
 - (void)markCurrentLocation;
 - (void)rewindToMarkedLocation;

HTMLKit/HTMLInputStreamReader.m

@@ -162,6 +162,14 @@
 	return consumed.length > 0 ? consumed : nil;
 }
 
+- (NSString *)consumeCharactersUpToString:(NSString *)string
+{
+	NSString *consumed = [NSString string];
+	[_scanner scanUpToString:string intoString:&consumed];
+	_location = _scanner.scanLocation;
+	return consumed;
+}
+
 - (void)unconsumeCurrentInputCharacter
 {
 	_location -= _consume;