nl_tokens: Upgrades tabstops in output node in order to prevent naming conflicts
pl_tokens: function ( node , offset ) { var maxNum = 0 ; var options = { tabstop : function ( data ) { var group = parseInt ( data . group ) ; if ( group > maxNum ) maxNum = group ; if ( <mask> . placeholder ) return '${' + ( group + offset ) + ':' + data . placeholder + '}' ; else return '${' + ( group + offset ) + '}' ; } } ; _ . each ( [ 'start' , 'end' , 'content' ] , function ( p ) { node [ p ] = this . processText ( node [ p ] , options ) ; } , this ) ; return maxNum ; }