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( function ( mw ) {
/**
* @class mw.RegExp
*/
mw.RegExp = {
/**
* Escape string for safe inclusion in regular expression
*
* The following characters are escaped:
*
* \ { } ( ) | . ? * + - ^ $ [ ]
*
* @since 1.26
* @static
* @param {string} str String to escape
* @return {string} Escaped string
*/
escape: function ( str ) {
return str.replace( /([\\{}()|.?*+\-\^$\[\]])/g, '\\$1' );
}
};
}( mediaWiki ) );
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