Function PosWithInfo

static/editor.md/lib/codemirror/lib/codemirror.js:2769–2774

(line, ch, outside, xRel)

  // is true, that means the coordinates lie outside the line's
  // vertical range.
  function PosWithInfo(line, ch, outside, xRel) {
    var pos = Pos(line, ch);
    pos.xRel = xRel;
    if (outside) pos.outside = true;
    return pos;
  }

  // Compute the character position closest to the given coordinates.
  // Input must be lineSpace-local ("div" coordinate system).