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LibJS: Actually escape \n|\r|LS|PS when escaping RegExp.source

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We were previously encoding them as `\<literal newline>`, which is just
all sorts of wrong :P
This commit is contained in:
Ali Mohammad Pur 2023-02-17 01:13:33 +03:30 • committed by Linus Groh
parent e3f3470a6c
commit b409a40377
1 changed files with 19 additions and 3 deletions
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22
Userland/Libraries/LibJS/Runtime/RegExpObject.cpp
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@ -266,10 +266,26 @@ DeprecatedString RegExpObject::escape_regexp_pattern() const
continue;
}
if (code_point == '\r' || code_point == LINE_SEPARATOR || code_point == PARAGRAPH_SEPARATOR || code_point == '/') {
builder.append_code_point('\\');
switch (code_point) {
case '/':
builder.append("\\/"sv);
break;
case '\n':
builder.append("\\n"sv);
break;
case '\r':
builder.append("\\r"sv);
break;
case LINE_SEPARATOR:
builder.append("\\u2028"sv);
break;
case PARAGRAPH_SEPARATOR:
builder.append("\\u2029"sv);
break;
default:
builder.append_code_point(code_point);
break;
}
builder.append_code_point(code_point);
}
return builder.to_deprecated_string();