nl_tokens: Create an opening tag lexer for block name .
pl_tokens: function ( type ) { this . names . push ( type ) ; var cached = this . regex . createOpen ( type ) ; var file = this . file ; var lexer = this ; return function ( ) { var pos = lexer . position ( ) ; var m = lexer . match ( cached . strict ) ; if ( ! m ) return ; var name = utils . getName ( m [ 1 ] ) ; var action = utils . getAction ( m [ 1 ] ) ; var val = m [ 0 ] ; if ( ! name && lexer . options [ type ] && lexer . options [ type ] . args === 'required' ) { throw new Error ( ` ${ type } ${ m [ 0 ] } ` ) ; } if ( ! name ) name = 'unnamed' ; var node = pos ( { type : ` ${ type } ` , known : utils . has ( lexer . known . blocks , type ) , name : name , val : val . trim ( ) } ) ; var parent = lexer . prev ( ) ; if ( parent && parent . name && parent . name !== 'root' ) { name = parent . name + '.' + name ; } var block = { type : type , name : name , known : <mask> . known , action : action , nodes : [ node ] } ; utils . define ( node , 'parent' , block ) ; utils . define ( block , 'parent' , parent ) ; block . rawArgs = m [ 1 ] ; block . args = utils . parseArgs ( m [ 1 ] ) ; Object . defineProperty ( file . ast . blocks [ type ] , name , { configurable : true , enumerable : true , set : function ( val ) { block = val ; } , get : function ( ) { return block ; } } ) ; parent . nodes . push ( block ) ; lexer . tokens . push ( block ) ; return block ; } ; }