blockquote: function blockquote()

in assets/js/lib-markdown.js [1041:1092]

• 43 lines of code
• 13 McCabe index (conditional complexity)

      blockquote: function blockquote( block, next ) {
        if ( !block.match( /^>/m ) )
          return undefined;

        var jsonml = [];

        // separate out the leading abutting block, if any. I.e. in this case:
        //
        //  a
        //  > b
        //
        if ( block[ 0 ] !== ">" ) {
          var lines = block.split( /\n/ ),
              prev = [],
              line_no = block.lineNumber;

          // keep shifting lines until you find a crotchet
          while ( lines.length && lines[ 0 ][ 0 ] !== ">" ) {
            prev.push( lines.shift() );
            line_no++;
          }

          var abutting = mk_block( prev.join( "\n" ), "\n", block.lineNumber );
          jsonml.push.apply( jsonml, this.processBlock( abutting, [] ) );
          // reassemble new block of just block quotes!
          block = mk_block( lines.join( "\n" ), block.trailing, line_no );
        }


        // if the next block is also a blockquote merge it in
        while ( next.length && next[ 0 ][ 0 ] === ">" ) {
          var b = next.shift();
          block = mk_block( block + block.trailing + b, b.trailing, block.lineNumber );
        }

        // Strip off the leading "> " and re-process as a block.
        var input = block.replace( /^> ?/gm, "" ),
            old_tree = this.tree,
            processedBlock = this.toTree( input, [ "blockquote" ] ),
            attr = extract_attr( processedBlock );

        // If any link references were found get rid of them
        if ( attr && attr.references ) {
          delete attr.references;
          // And then remove the attribute object if it's empty
          if ( isEmpty( attr ) )
            processedBlock.splice( 1, 1 );
        }

        jsonml.push( processedBlock );
        return jsonml;
      },