lib-js0n.app.js

/* appjet:version 0.1 */
import(appjet.appName, 'lib-json');
const Data = [{
  'null': null,
  date  : new Date,
  number: [Math.random(), Math.random() / 9e99, Math.random() * 9e99],
  regexp: /\\u[0-9a-f]{4}/ig,
  string: (function(){
    for(var i = -1, a = []; ++i < 999;) a[i] = i;
    return String.fromCharCode.apply(0, a);
  }()),
  'boolean': {'\t': true, '\f': false},
}];
dispatch();

function get_main(){
  print(
    UL(LI(link('http://appjet.com/app/'+ appjet.encodedAppKey +'/docs')),
       LI(link('test'))),
    CODE(JS0N.stringify(JS0N)));
}
function get_test(){
  http://www.jsonlint.com/
  JS0N.put(Data, request.params.c);
}
function get_bench(){
  bench(function js0n(){ JS0N.stringify(Data) });
  bench(function json(){ JSON.stringify(Data) });
}

function bench(fn){
  var t = Date.now(), i = 99;
  while(i--) fn();
  printp(fn.name, ' : ', Date.now() - t);
}

/* appjet:library */
/**
 * @overview
 * Provides JS0N, a pseudo <a href="http://lib-json.appjet.net/">JSON</a>.
 * <dl>
 *  <dt>pros</dt><dd>multi-byte friendly</dd>
 *  <dt>cons</dt><dd>slower</dd>
 * </dl>
 */
let JS0N = (function(){
  /** Parses JSON without security-checking, aka eval.
   * @param  {string} json
   * @return {*} value
   */
  function parse(j){ return eval('0,'+ j) }
  /** Turns any value into JSON. Non-JSON values are treated as string.
   * @param  {*} value
   * @return {string} json
   */
  function stringify(v){
    switch(typeof v){
      case 'string' : return jstr(v);
      case 'number' : return isFinite(v) ? String(v) : '"'+ v +'"';
      case 'boolean': return String(v);
      case 'object' :
      if(!v) return 'null';
      if(typeof v.toJSON === 'function')
        return stringify(v.toJSON());
      if(v.toString === Object.prototype.toString){
        var a = [], i = -1, k;
        for(k in v) a[++i] = jstr(k) +':'+ stringify(v[k]);
        return '{'+ a.join(',') +'}';
      }
      if(v instanceof Array)
        return '['+ v.map(stringify).join(',') +']';
      if(v instanceof Date)
        return sprintf('"%04d-%02d-%02dT%02d:%02d:%02dZ"',
                       v.getUTCFullYear(), v.getUTCMonth() + 1,
                       v.getUTCDate(), v.getUTCHours(),
                       v.getUTCMinutes(), v.getUTCSeconds());
    }
    return jstr(uneval(v));
  }
  /** Uneval a string into JSON string.
   * @param {string} s
   * @return {string} json
   */
  function jstr(s){
    return uneval(s).replace(/\\(?:[\\v]|x(?=[0-9a-f][0-9a-f]))/g, rper);
  }
  /** @ignore */
  function rper($){ return dic[$] }
  var dic = {'\\\\': '\\\\', '\\x': '\\u00', '\\v': '\\u000b'};
  /** Utility to emit JSON (or JSONP if callback is provided).
   * @param {*} value
   * @param {string} callback
   */
  function put(v, cb){
    var p = typeof cb === 'string';
    page.setMode('plain');
    response.setContentType(
      (p ? 'text/javascript' : 'application/json') +';charset=utf-8');
    var j = stringify(v);
    if(p) j = cb +'('+ j +')';
    response.writeBytes(j);
  }
  return {parse: parse, stringify: stringify, jstr: jstr, put: put};
}());