nl_tokens: Returns a regular expression based on the given value and matching options . This is used internally for finding and filtering and by Ext . data . Store#filter
pl_tokens: function ( value , anyMatch , caseSensitive , exactMatch ) { if ( ! value . exec ) { // not a regex var er = Ext . String . escapeRegex ; value = String ( value ) ; if ( anyMatch === <mask> ) { value = er ( value ) ; } else { value = '^' + er ( value ) ; if ( exactMatch === true ) { value += '$' ; } } value = new RegExp ( value , caseSensitive ? '' : 'i' ) ; } return value ; }