public/javascripts/codemirror/js/editor.js
function paren(node) {
        if (node.currentText) {
          var match = node.currentText.match(/^[\s\u00a0]*([\(\)\[\]{}])[\s\u00a0]*$/);
          return match && match[1];
        }
      }
function paren(node) {
        if (node.currentText) {
          var match = node.currentText.match(/^[\s\u00a0]*([\(\)\[\]{}])[\s\u00a0]*$/);
          return match && match[1];
        }
      }
function paren ( node ) { if ( node . currentText ) { var match = node . currentText . match ( / ^[\s\u00a0]*([\(\)\[\]{}])[\s\u00a0]*$ / ) ; return match && match [ 1 ] ; } }
Extract a 'paren' from a piece of text.
Extract a paren from a piece of text .