Core Function RegexUnescape

RegexUnescape( <expression> )

Description

Remove any escapes from regular expression characters.

RegexUnescape() takes a string and removes any backslash in front of every character that is part of the regular expression syntax.

Parameters

expression

The string to use.

Return Value

Success: Returns the escaped string.

Failure: Returns empty string and sets @Error.

Remarks

If an escaped character in the string is not a Regexp compatible character then an empty string will be returned unmodified and the @Error will be set.

Example

// Obviously using @"" is the best way use Regexp strings
say @"(\w+)\s(\1)";                             // Prints: (\w+)\s(\1)
say RegexEscape(@"(\w+)\s(\1)");                // Prints: \(\\w\+\)\\s\(\\1\)
say RegexUnEscape(RegexEscape(@"(\w+)\s(\1)")); // Prints: (\w+)\s(\1)

Using @Error

say RegexUnEscape(@"\m");
if(@Error)
{
	say "There was an error parsing";
	say @ErrorMsg;
}