Function bidiLeft

src/codemirror.js:8639–8639

(part)

  }

  function bidiLeft(part) { return part.level % 2 ? part.to : part.from; }
  function bidiRight(part) { return part.level % 2 ? part.from : part.to; }

  function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0; }