Method trim

core/src/processing/data/Table.java:4159–4188

Trims leading and trailing whitespace, such as spaces and tabs, from String table values. If no column is specified, then the values in all columns and rows are trimmed. A specific column may be referenced by either its ID or title. @webref table:method @webBrief Trims whitespace from values @see

()

   * @see Table#removeTokens(String)
   */
  public void trim() {
    columnTitles = PApplet.trim(columnTitles);
    for (int col = 0; col < getColumnCount(); col++) {
      trim(col);
    }
    // remove empty columns
    int lastColumn = getColumnCount() - 1;
    //while (isEmptyColumn(lastColumn) && lastColumn >= 0) {
    while (isEmptyArray(getStringColumn(lastColumn)) && lastColumn >= 0) {
      lastColumn--;
    }
    setColumnCount(lastColumn + 1);

    // trim() works from both sides
    while (getColumnCount() > 0 && isEmptyArray(getStringColumn(0))) {
      removeColumn(0);
    }

    // remove empty rows (starting from the end)
    int lastRow = lastRowIndex();
    //while (isEmptyRow(lastRow) && lastRow >= 0) {
    while (isEmptyArray(getStringRow(lastRow)) && lastRow >= 0) {
      lastRow--;
    }
    setRowCount(lastRow + 1);

    while (getRowCount() > 0 && isEmptyArray(getStringRow(0))) {
      removeRow(0);
    }
  }


  protected boolean isEmptyArray(String[] contents) {