Function getLines

static/js/codemirror/codemirror.js:4582–4586

(doc, from, to)

    return out;
  }
  function getLines(doc, from, to) {
    var out = [];
    doc.iter(from, to, function(line) { out.push(line.text); });
    return out;
  }

  function updateLineHeight(line, height) {
    var diff = height - line.height;