Function visualLineNo

external/.scrollLibs.js:1524–1531

(doc, lineN)

  // Get the line number of the start of the visual line that the
  // given line number is part of.
  function visualLineNo(doc, lineN) {
    var line = getLine(doc, lineN),
      vis = visualLine(line)
    if (line == vis) {
      return lineN
    }
    return lineNo(vis)
  }

  // Get the line number of the start of the next visual line after
  // the given line.