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LibRegex: Partially implement the ECMAScript unicodeSets proposal

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This skips the new string unicode properties additions, along with \q{}.
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Ali Mohammad Pur 2022-07-20 23:22:07 +04:30 • committed by Linus Groh
parent 7734914909
commit 598dc74a76
9 changed files with 611 additions and 69 deletions
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46
Userland/Libraries/LibC/regex.h
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@ -21,24 +21,25 @@ typedef struct {
enum __Regex_Error {
__Regex_NoError,
__Regex_InvalidPattern, // Invalid regular expression.
__Regex_InvalidCollationElement, // Invalid collating element referenced.
__Regex_InvalidCharacterClass, // Invalid character class type referenced.
__Regex_InvalidTrailingEscape, // Trailing \ in pattern.
__Regex_InvalidNumber, // Number in \digit invalid or in error.
__Regex_MismatchingBracket, // [ ] imbalance.
__Regex_MismatchingParen, // ( ) imbalance.
__Regex_MismatchingBrace, // { } imbalance.
__Regex_InvalidBraceContent, // Content of {} invalid: not a number, number too large, more than two numbers, first larger than second.
__Regex_InvalidBracketContent, // Content of [] invalid.
__Regex_InvalidRange, // Invalid endpoint in range expression.
__Regex_InvalidRepetitionMarker, // ?, * or + not preceded by valid regular expression.
__Regex_ReachedMaxRecursion, // MaximumRecursion has been reached.
__Regex_EmptySubExpression, // Sub expression has empty content.
__Regex_InvalidCaptureGroup, // Content of capture group is invalid.
__Regex_InvalidNameForCaptureGroup, // Name of capture group is invalid.
__Regex_InvalidNameForProperty, // Name of property is invalid.
__Regex_DuplicateNamedCapture, // Duplicate named capture group
__Regex_InvalidPattern, // Invalid regular expression.
__Regex_InvalidCollationElement, // Invalid collating element referenced.
__Regex_InvalidCharacterClass, // Invalid character class type referenced.
__Regex_InvalidTrailingEscape, // Trailing \ in pattern.
__Regex_InvalidNumber, // Number in \digit invalid or in error.
__Regex_MismatchingBracket, // [ ] imbalance.
__Regex_MismatchingParen, // ( ) imbalance.
__Regex_MismatchingBrace, // { } imbalance.
__Regex_InvalidBraceContent, // Content of {} invalid: not a number, number too large, more than two numbers, first larger than second.
__Regex_InvalidBracketContent, // Content of [] invalid.
__Regex_InvalidRange, // Invalid endpoint in range expression.
__Regex_InvalidRepetitionMarker, // ?, * or + not preceded by valid regular expression.
__Regex_ReachedMaxRecursion, // MaximumRecursion has been reached.
__Regex_EmptySubExpression, // Sub expression has empty content.
__Regex_InvalidCaptureGroup, // Content of capture group is invalid.
__Regex_InvalidNameForCaptureGroup, // Name of capture group is invalid.
__Regex_InvalidNameForProperty, // Name of property is invalid.
__Regex_DuplicateNamedCapture, // Duplicate named capture group
__Regex_InvalidCharacterClassEscape, // Invalid escaped entity in character class.
};
enum ReError {
@ -82,10 +83,11 @@ enum __RegexAllFlags {
__Regex_Multiline = __Regex_Global << 12, // Handle newline characters. Match each line, one by one.
__Regex_SkipTrimEmptyMatches = __Regex_Global << 13, // Do not remove empty capture group results.
__Regex_SingleMatch = __Regex_Global << 14, // Stop after acquiring a single match.
__Regex_Internal_Stateful = __Regex_Global << 15, // Internal flag; enables stateful matches.
__Regex_Internal_BrowserExtended = __Regex_Global << 16, // Internal flag; enable browser-specific ECMA262 extensions.
__Regex_Internal_ConsiderNewline = __Regex_Global << 17, // Internal flag; allow matchers to consider newlines as line separators.
__Regex_Last = __Regex_SingleMatch
__Regex_UnicodeSets = __Regex_Global << 15, // ECMA262 Parser specific: Allow set operations in char classes.
__Regex_Internal_Stateful = __Regex_Global << 16, // Internal flag; enables stateful matches.
__Regex_Internal_BrowserExtended = __Regex_Global << 17, // Internal flag; enable browser-specific ECMA262 extensions.
__Regex_Internal_ConsiderNewline = __Regex_Global << 18, // Internal flag; allow matchers to consider newlines as line separators.
__Regex_Last = __Regex_UnicodeSets,
};
// Values for the cflags parameter to the regcomp() function: