nl_tokens: Parse the src options adding defaults .
pl_tokens: function parseOptions ( options = { } , vinylCjsDeps ) { const _options = Object . assign ( { gulp : vinylCjsDeps . gulp || require ( 'gulp' ) , base : options . cwd || process . cwd ( ) , cwd : options . base || process . cwd ( ) , internalOnly : false , debugVcjd : false } , options ) ; _options . mapper = Object . assign ( { } , options . mapper || { } ) ; _options . lookup = new <mask> ( options . lookup || [ ] ) ; _options . resolver = createResolver ( options ) ; return _options ; }