shm_utils/umurmurd-websocket/web/js/json.human.js

   1 /*globals define*/
   2 (function (root, factory) {
   3     "use strict";
   4     if (typeof define === 'function' && define.amd) {
   5         define(['crel'], factory);
   6     } else if (typeof module !== 'undefined' && module.exports) {
   7                 module.exports = factory(require('../lib/crel'));
   8     } else {
   9         root.JsonHuman = factory(root.crel);
  10     }
  11 }(this, function (crel) {
  12     "use strict";
  13     var toString = Object.prototype.toString,
  14         ARRAY = 1,
  15         BOOL = 2,
  16         INT = 3,
  17         FLOAT = 4,
  18         STRING = 5,
  19         OBJECT = 6,
  20         FUNCTION = 7,
  21         UNK = 99;
  22
  23     function makePrefixer(prefix) {
  24         return function (name) {
  25             return prefix + "-" + name;
  26         };
  27     }
  28
  29     function getType(obj) {
  30         var type = typeof obj;
  31
  32         if (type === "boolean") {
  33             return BOOL;
  34         } else if (type === "string") {
  35             return STRING;
  36         } else if (type === "number") {
  37             return (obj % 1 === 0) ? INT : FLOAT;
  38         } else if (type === "function") {
  39             return FUNCTION;
  40         } else if (toString.call(obj) === '[object Array]') {
  41             return ARRAY;
  42         } else if (obj === Object(obj)) {
  43             return OBJECT;
  44         } else {
  45             return UNK;
  46         }
  47     }
  48
  49     function _format(data, prefixer) {
  50         var result, container, key, keyNode, valNode,
  51             isEmpty = true,
  52             p = prefixer,
  53             accum = [],
  54             type = getType(data);
  55
  56         switch (type) {
  57         case BOOL:
  58             result = crel("span", {"class": p("type-bool")}, "" + data);
  59             break;
  60         case STRING:
  61             if (data !== "") {
  62                 result = crel("span", {"class": p("type-string")}, "");
  63                 result.innerHTML = data
  64                     .replace(/&/g, '&amp;')
  65                     .replace(/ /g, "&nbsp;")
  66                     .replace(/</g, '&lt;')
  67                     .replace(/>/g, '&gt;')
  68                     .replace(/[\r\n]/g, '<br/>')
  69                     .replace(/"/g, '&quot;'); // ")
  70             } else {
  71                 result = crel("span",
  72                          {"class": p("type-string") + " " + p("empty")},
  73                          "(Empty Text)");
  74             }
  75             break;
  76         case INT:
  77             result = crel("span",
  78                          {"class": p("type-int") + " " + p("type-number")},
  79                           "" + data);
  80             break;
  81         case FLOAT:
  82             result = crel("span",
  83                          {"class": p("type-float") + " " + p("type-number")},
  84                          "" + data);
  85             break;
  86         case OBJECT:
  87             result = crel("table", {"class": p("type-object")});
  88             for (key in data) {
  89                 isEmpty = false;
  90                 keyNode = crel("th",
  91                          {"class": p("key") + " " + p("object-key")},
  92                          "" + key);
  93                 valNode = crel("td",
  94                          {"class": p("value") + " " + p("object-value")},
  95                          _format(data[key], p));
  96                 result.appendChild(crel("tr", keyNode, valNode));
  97             }
  98
  99             if (isEmpty) {
 100                 result = crel("span",
 101                          {"class": p("type-object") + " " + p("empty")},
 102                          "(Empty Object)");
 103             }
 104             break;
 105         case FUNCTION:
 106             result = crel("span", {"class": p("type-function")}, "" + data);
 107             break;
 108         case ARRAY:
 109             if (data.length > 0) {
 110                 result = crel("table", {"class": p("type-array")});
 111                 for (key = 0; key < data.length; key += 1) {
 112                     keyNode = crel("th",
 113                              {"class": p("key") + " " + p("array-key")},
 114                              "" + key);
 115                     valNode = crel("td",
 116                              {"class": p("value") + " " + p("array-value")},
 117                              _format(data[key], p));
 118                     result.appendChild(crel("tr", keyNode, valNode));
 119                 }
 120             } else {
 121                 result = crel("span",
 122                          {"class": p("type-array") + " " + p("empty")},
 123                          "(Empty List)");
 124             }
 125             break;
 126         default:
 127             result = crel("span", {"class": p("type-unk")},
 128                           "" + data);
 129             break;
 130         }
 131
 132         return result;
 133     }
 134
 135     function format(data, options) {
 136         options = options || {};
 137         var result,
 138             prefixer = makePrefixer(options.prefix || "jh");
 139
 140         result = _format(data, prefixer);
 141         result.className = result.className + " " + prefixer("root");
 142
 143         return result;
 144     }
 145
 146     return {
 147         format: format
 148     };
 149 }));