Before sending the input stream to the tokenizer, implementations must make the following code point substitutions:
* Replace any U+000D CARRIAGE RETURN (CR) code point, U+000C FORM FEED (FF) code point, or pairs of U+000D CARRIAGE RETURN (CR) followed by U+000A LINE FEED (LF) by a single U+000A LINE FEED (LF) code point.
* Replace any U+0000 NULL code point with U+FFFD REPLACEMENT CHARACTER.
Before sending the input stream to the tokenizer, implementations must make the following code point substitutions: * Replace any U+000D CARRIAGE RETURN (CR) code point, U+000C FORM FEED (FF) code point, or pairs of U+000D CARRIAGE RETURN (CR) followed by U+000A LINE FEED (LF) by a single U+000A LINE FEED (LF) code point. * Replace any U+0000 NULL code point with U+FFFD REPLACEMENT CHARACTER.