Add HTML stream method to consume a decimal number

HTMLKit/HTMLInputStreamReader.h

@@ -88,6 +88,15 @@ typedef void (^ HTMLStreamReaderErrorCallback)(NSString *reason);
  */
 - (BOOL)consumeCharacter:(UTF32Char)character;
 
+/**
+ Consumes characters at the current location matching an unsigned number.
+
+ @param result Upon return, contains the consumed unsigned number. Pass `NULL` to skip over an unsigned number at the
+ current location.
+ @returns YES if an unsigned number could be consumed at the current location, NO otherwise.
+ */
+- (BOOL)consumeNumber:(unsigned long long *)result;
+
 /**
  Consumes characters at the current location matching a decimal number.
 
@@ -95,7 +104,7 @@ typedef void (^ HTMLStreamReaderErrorCallback)(NSString *reason);
  current location.
  @returns YES if a decimal number could be consumed at the current location, NO otherwise.
  */
-- (BOOL)consumeNumber:(unsigned long long *)result;
+- (BOOL)consumeDecimalNumber:(NSDecimal *)result;
 
 /**
  Consumes characters at the current location matching a hexadecimal number.

HTMLKit/HTMLInputStreamReader.m

@@ -152,6 +152,17 @@
 	return success;
 }
 
+- (BOOL)consumeDecimalNumber:(NSDecimal *)result
+{
+	NSDecimal scanned;
+	BOOL success = [_scanner scanDecimal:&scanned];
+	if (success == NO) return NO;
+
+	*result = scanned;
+	_location = _scanner.scanLocation;
+	return success;
+}
+
 - (BOOL)consumeHexNumber:(unsigned long long *)result
 {
 	NSCharacterSet *set = [NSCharacterSet HTMLHexNumberCharacterSet];