Function collapsedSpanAtSide

external/.scrollLibs.js:1429–1441

(line, start)

  // Find out whether a line ends or starts in a collapsed span. If
  // so, return the marker for that span.
  function collapsedSpanAtSide(line, start) {
    var sps = sawCollapsedSpans && line.markedSpans,
      found
    if (sps) {
      for (var sp = void 0, i = 0; i < sps.length; ++i) {
        sp = sps[i]
        if (sp.marker.collapsed && (start ? sp.from : sp.to) == null && (!found || compareCollapsedMarkers(found, sp.marker) < 0)) {
          found = sp.marker
        }
      }
    }
    return found
  }
  function collapsedSpanAtStart(line) {
    return collapsedSpanAtSide(line, true)
  }