nl_tokens: Get the contents of CSS files .
pl_tokens: function getCSS ( [ files , options , pages , stylesheets ] ) { /* Ignore specified stylesheets */ if ( options . ignoreSheets . length ) { stylesheets = stylesheets . map ( ( arr ) => { return arr . filter ( ( sheet ) => { return _ . every ( options . ignoreSheets , ( ignore ) => { if ( _ . isRegExp ( ignore ) ) { return ! ignore . test ( sheet ) ; } return sheet !== ignore ; } ) ; } ) ; } ) ; } if ( _ . flatten ( stylesheets ) . length ) { /* Only run this if we found links to stylesheets (there may be none...)
           *  files       = ['some_file.html', 'some_other_file.html']
           *  stylesheets = [['relative_css_path.css', ...],
           *                 ['maybe_a_duplicate.css', ...]]
           * We need to - make the stylesheets' paths relative to the HTML files,
           *            - flatten the array,
           *            - remove duplicates
           */ stylesheets = _ . chain ( stylesheets ) . map ( ( sheets , i ) => utility . parsePaths ( files [ i ] , sheets , options ) ) . flatten ( ) . uniq ( ) . value ( ) ; } else { /* Reset the array if we didn't find any link tags */ stylesheets = [ ] ; } return Promise . all ( [ options , pages , utility . readStylesheets ( stylesheets , <mask> . banner ) ] ) ; }