Function coordsBidiPart

external/.scrollLibs.js:4212–4238

(cm, lineObj, lineNo$$1, preparedMeasure, order, x, y)

  }

  function coordsBidiPart(cm, lineObj, lineNo$$1, preparedMeasure, order, x, y) {
    // Bidi parts are sorted left-to-right, and in a non-line-wrapping
    // situation, we can take this ordering to correspond to the visual
    // ordering. This finds the first part whose end is after the given
    // coordinates.
    var index = findFirst(
      function (i) {
        var part = order[i],
          ltr = part.level != 1
        return boxIsAfter(cursorCoords(cm, Pos(lineNo$$1, ltr ? part.to : part.from, ltr ? "before" : "after"), "line", lineObj, preparedMeasure), x, y, true)
      },
      0,
      order.length - 1
    )
    var part = order[index]
    // If this isn't the first part, the part's start is also after
    // the coordinates, and the coordinates aren't on the same line as
    // that start, move one part back.
    if (index > 0) {
      var ltr = part.level != 1
      var start = cursorCoords(cm, Pos(lineNo$$1, ltr ? part.from : part.to, ltr ? "after" : "before"), "line", lineObj, preparedMeasure)
      if (boxIsAfter(start, x, y, true) && start.top > y) {
        part = order[index - 1]
      }
    }
    return part
  }

  function coordsBidiPartWrapped(cm, lineObj, _lineNo, preparedMeasure, order, x, y) {
    // In a wrapped line, rtl text on wrapping boundaries can do things