Function wrappedLineExtent

docs/themes/htx/source/js/codemirror.js:3768–3786

(cm, lineObj, preparedMeasure, y)

  }

  function wrappedLineExtent(cm, lineObj, preparedMeasure, y) {
    y -= widgetTopHeight(lineObj);
    var end = lineObj.text.length;
    var begin = findFirst(
      function(ch) {
        return measureCharPrepared(cm, preparedMeasure, ch - 1).bottom <= y;
      },
      end,
      0,
    );
    end = findFirst(
      function(ch) {
        return measureCharPrepared(cm, preparedMeasure, ch).top > y;
      },
      begin,
      end,
    );
    return { begin: begin, end: end };
  }

  function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) {
    if (!preparedMeasure) {