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LibJS: Hook up Regex<ECMA262> to RegExpObject and implement `test()'

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This makes RegExpObject compile and store a Regex<ECMA262>, adds
all flag-related properties, and implements `RegExpPrototype.test()`
(complete with 'lastIndex' support) :^)
It should be noted that this only implements `test()' using the builtin
`exec()'.
This commit is contained in:
AnotherTest 2020-11-19 01:50:00 +03:30 • committed by Andreas Kling
parent 75081b2bdd
commit 8ba273a2f3
13 changed files with 396 additions and 12 deletions
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7
Libraries/LibRegex/RegexOptions.h
View file

@ -53,7 +53,8 @@ enum class AllFlags {
Sticky = __Regex_Sticky, // Force the pattern to only match consecutive matches from where the previous match ended.
Multiline = __Regex_Multiline, // Handle newline characters. Match each line, one by one.
SkipTrimEmptyMatches = __Regex_SkipTrimEmptyMatches, // Do not remove empty capture group results.
Last = SkipTrimEmptyMatches
Internal_Stateful = __Regex_Internal_Stateful, // Make global matches match one result at a time, and further match() calls on the same instance continue where the previous one left off.
Last = Internal_Stateful,
};
enum class PosixFlags : FlagsUnderlyingType {
@ -72,7 +73,7 @@ enum class PosixFlags : FlagsUnderlyingType {
};
enum class ECMAScriptFlags : FlagsUnderlyingType {
Global = (FlagsUnderlyingType)AllFlags::Global,
Global = (FlagsUnderlyingType)AllFlags::Global | (FlagsUnderlyingType)AllFlags::Internal_Stateful, // Note: ECMAScript "Global" creates a stateful regex.
Insensitive = (FlagsUnderlyingType)AllFlags::Insensitive,
Ungreedy = (FlagsUnderlyingType)AllFlags::Ungreedy,
Unicode = (FlagsUnderlyingType)AllFlags::Unicode,
@ -123,7 +124,7 @@ public:
void reset_flags() { m_flags = (T)0; }
void reset_flag(T flag) { m_flags = (T)((FlagsUnderlyingType)m_flags & ~(FlagsUnderlyingType)flag); }
void set_flag(T flag) { *this |= flag; }
bool has_flag_set(T flag) const { return *this & flag; }
bool has_flag_set(T flag) const { return (FlagsUnderlyingType)flag == ((FlagsUnderlyingType)m_flags & (FlagsUnderlyingType)flag); }
T value() const { return m_flags; }
private: