MD-Numbered List

script

// Markdown list to current line, or output the list prefix
// if the current line is blank and no text is selected

var mdListPrefixChar = "1.";
var mdListPrefix = mdListPrefixChar + " ";

var lnRange = editor.getSelectedLineRange();
var ln = editor.getTextInRange(lnRange[0], lnRange[1]);
var selRange = editor.getSelectedRange();

if (ln == "") {
  editor.setSelectedText(mdListPrefix);
  editor.setSelectedRange(selRange[0] + mdListPrefix.length, 0);
} else {
  var lines = ln.split('\n');
  var charsAdded = 0;

  for (var ix=0; ix < lines.length; ix++) {
    if (lines[ix].length > 0) {
      if (lines[ix][0] != mdListPrefixChar) {
        var prefix = mdListPrefixChar;
        if (lines[ix][0] != " ") {
          prefix = mdListPrefix;
        }
        lines[ix] = prefix + lines[ix];
        charsAdded = charsAdded + prefix.length;
      }
    }
  }
  editor.setTextInRange(lnRange[0], lnRange[1],lines.join("\n"));
  if (lines.length > 2) {
    editor.setSelectedRange(lnRange[0]+lnRange[1]+charsAdded, 0);
  }
  else {
    editor.setSelectedRange(selRange[0]+charsAdded, selRange[1]);
  }
}