assets/js/add_numbers.js

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

(function() {
    var pre = document.getElementsByTagName('pre'),
        pl = pre.length;
    for (var i = 0; i < pl; i++) {
        pre[i].innerHTML = '<span class="line-number"></span>' + pre[i].innerHTML + '<span class="cl"></span>';
        var num = pre[i].innerHTML.split(/\n/).length;
        for (var j = 0; j < num-1; j++) {
            var line_num = pre[i].getElementsByTagName('span')[0];
            line_num.innerHTML += '<span>' + (j + 1) + '</span>';
        }
    }
})();