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LibRegex: Disallow duplicate named capture groups in ECMA262 parser
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4 changed files with 11 additions and 0 deletions
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@ -35,6 +35,7 @@ enum class Error : u8 {
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InvalidCaptureGroup = __Regex_InvalidCaptureGroup, // Content of capture group is invalid.
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InvalidNameForCaptureGroup = __Regex_InvalidNameForCaptureGroup, // Name of capture group is invalid.
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InvalidNameForProperty = __Regex_InvalidNameForProperty, // Name of property is invalid.
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DuplicateNamedCapture = __Regex_DuplicateNamedCapture, // Name of property is invalid.
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};
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inline String get_error_string(Error error)
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@ -76,6 +77,8 @@ inline String get_error_string(Error error)
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return "Name of capture group is invalid.";
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case Error::InvalidNameForProperty:
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return "Name of property is invalid.";
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case Error::DuplicateNamedCapture:
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return "Duplicate capture group name";
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}
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return "Undefined error.";
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}
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@ -2166,6 +2166,11 @@ bool ECMA262Parser::parse_capture_group(ByteCode& stack, size_t& match_length_mi
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return false;
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}
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if (m_parser_state.named_capture_groups.contains(name)) {
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set_error(Error::DuplicateNamedCapture);
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return false;
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}
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ByteCode capture_group_bytecode;
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size_t length = 0;
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enter_capture_group_scope();
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