Method referenceCheck

app/src/processing/app/ui/Editor.java:2292–2322

Check the current selection for reference. If no selection is active, expand the current selection. @return

(boolean selectIfFound)

   * @return
   */
  protected String referenceCheck(boolean selectIfFound) {
    int start = textarea.getSelectionStart();
    int stop = textarea.getSelectionStop();
    if (stop < start) {
      int temp = stop;
      stop = start;
      start = temp;
    }
    char[] c = textarea.getText().toCharArray();

//    System.out.println("checking reference");
    if (start == stop) {
      while (start > 0 && functionable(c[start - 1])) {
        start--;
      }
      while (stop < c.length && functionable(c[stop])) {
        stop++;
      }
//      System.out.println("start is stop");
    }
    String text = new String(c, start, stop - start).trim();
//    System.out.println("  reference piece is '" + text + "'");
    if (checkParen(c, stop, c.length)) {
      text += "_";
    }
    String ref = mode.lookupReference(text);
    if (selectIfFound) {
      textarea.select(start, stop);
    }
    return ref;
  }


  protected void handleFindReference() {