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LibRegex: Make '.' reject matching LF / LS / PS as per the ECMA262 spec

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Previously we allowed it to match those, but the ECMA262 spec disallows
these (except in DotAll).
This commit is contained in:
Ali Mohammad Pur 2023-02-15 09:55:43 +03:30 • committed by Andreas Kling
parent 1e022295c4
commit 936a9fd759
4 changed files with 59 additions and 43 deletions
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12
Userland/Libraries/LibRegex/RegexByteCode.cpp
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@ -499,8 +499,18 @@ ALWAYS_INLINE ExecutionResult OpCode_Compare::execute(MatchInput const& input, M
if (input.view.length() <= state.string_position)
return ExecutionResult::Failed_ExecuteLowPrioForks;
// U+2028 LINE SEPARATOR
constexpr static u32 const LineSeparator { 0x2028 };
// U+2029 PARAGRAPH SEPARATOR
constexpr static u32 const ParagraphSeparator { 0x2029 };
auto input_view = input.view.substring_view(state.string_position, 1)[0];
if (input_view != '\n' || (input.regex_options.has_flag_set(AllFlags::SingleLine) && input.regex_options.has_flag_set(AllFlags::Internal_ConsiderNewline))) {
auto is_equivalent_to_newline = input_view == '\n'
|| (input.regex_options.has_flag_set(AllFlags::Internal_ECMA262DotSemantics)
? (input_view == '\r' || input_view == LineSeparator || input_view == ParagraphSeparator)
: false);
if (!is_equivalent_to_newline || (input.regex_options.has_flag_set(AllFlags::SingleLine) && input.regex_options.has_flag_set(AllFlags::Internal_ConsiderNewline))) {
if (current_inversion_state())
inverse_matched = true;
else