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LibJS: Make escape_regexp_pattern() a RegExpObject member function

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Similarly to regexp_initialize() this can be a member function instead
of taking a RegExpObject argument.
Having it available outside RegExpPrototype is also useful for other
things that need RegExp.prototype.source behavior - e.g. the REPL for
pretty-printing.
This commit is contained in:
Linus Groh
2021-10-05 18:33:28 +01:00
parent 83bd675477
commit 78fd8c1ca2
3 changed files with 12 additions and 11 deletions
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10
Userland/Libraries/LibJS/Runtime/RegExpObject.cpp
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@@ -10,6 +10,7 @@
#include <LibJS/Runtime/RegExpObject.h>
#include <LibJS/Runtime/StringPrototype.h>
#include <LibJS/Runtime/Value.h>
#include <LibJS/Token.h>
namespace JS {
@@ -188,6 +189,15 @@ RegExpObject* RegExpObject::regexp_initialize(GlobalObject& global_object, Value
return this;
}
// 22.2.3.2.5 EscapeRegExpPattern ( P, F ), https://tc39.es/ecma262/#sec-escaperegexppattern
String RegExpObject::escape_regexp_pattern() const
{
if (m_pattern.is_empty())
return "(?:)";
// FIXME: Check u flag and escape accordingly
return m_pattern.replace("\n", "\\n", true).replace("\r", "\\r", true).replace(LINE_SEPARATOR_STRING, "\\u2028", true).replace(PARAGRAPH_SEPARATOR_STRING, "\\u2029", true).replace("/", "\\/", true);
}
// 22.2.3.2.4 RegExpCreate ( P, F ), https://tc39.es/ecma262/#sec-regexpcreate
RegExpObject* regexp_create(GlobalObject& global_object, Value pattern, Value flags)
{