复制代码 代码如下:

<script>
    var APP=function(){
        var format=function(json){
            var reg=null,
                result=\'\';
                pad=0,
                PADDING=\'    \';
            if (typeof json !== \'string\') {
                json = JSON.stringify(json);
            } else {
                json = JSON.parse(json);
                json = JSON.stringify(json);
            }
            // 在大括号前后添加换行
            reg = /([\\{\\}])/g;
            json = json.replace(reg, \'\\r\\n$1\\r\\n\');
            // 中括号前后添加换行
            reg = /([\\[\\]])/g;
            json = json.replace(reg, \'\\r\\n$1\\r\\n\');
            // 逗号后面添加换行
            reg = /(\\,)/g;
            json = json.replace(reg, \'$1\\r\\n\');
            // 去除多余的换行
            reg = /(\\r\\n\\r\\n)/g;
            json = json.replace(reg, \'\\r\\n\');
            // 逗号前面的换行去掉
            reg = /\\r\\n\\,/g;
            json = json.replace(reg, \',\');
            //冒号前面缩进
            reg = /\\:/g;
            json = json.replace(reg, \': \');
            //对json按照换行进行切分然后处理每一个小块
            $.each(json.split(\'\\r\\n\'), function(index, node) {
                var i = 0,
                    indent = 0,
                    padding = \'\';
                //这里遇到{、[时缩进等级加1，遇到}、]时缩进等级减1，没遇到时缩进等级不变
                if (node.match(/\\{$/) || node.match(/\\[$/)) {
                    indent = 1;
                } else if (node.match(/\\}/) || node.match(/\\]/)) {
                    if (pad !== 0) {
                        pad -= 1;
                    }
                } else {
                    indent = 0;
                }
                   //padding保存实际的缩进
                for (i = 0; i < pad; i++) {
                    padding += PADDING;
                }
                //添加代码高亮
                node = node.replace(/([\\{\\}])/g,\"<span class=\'ObjectBrace\'>$1</span>\");
                node = node.replace(/([\\[\\]])/g,\"<span class=\'ArrayBrace\'>$1</span>\");
                node = node.replace(/(\\\".*\\\")(\\:)(.*)(\\,)?/g,\"<span class=\'PropertyName\'>$1</span>$2$3$4\");
                node = node.replace(/\\\"([^\"]*)\\\"(\\,)?$/g,\"<span class=\'String\'>\\\"$1\\\"</span><span class=\'Comma\'>$2</span>\");
                node = node.replace(/(-?\\d+)(\\,)?$/g,\"<span class=\'Number\'>$1</span><span class=\'Comma\'>$2</span>\");
                result += padding + node + \'<br>\';
                pad += indent;
            });
            return result;
        };
        return {
            \"format\":format,
        };
    }();
</script>