JXON

Posted by Bruce Tsai
04/12/2016

• JXON

在 XML 與 JSON 間無縫轉換

JXON 是 lossless JavaScript XML Object Notation 的縮寫，是使用 Javascript 語言的 syntax 來表示 XML 文件的資料。主要目的是要達到完整無失真的轉換，意即在 XML 與 JSON 之間做到完整轉換。JXON 在網路上並無一個明確的規範或標準，但若有對資料轉換上需求時，JXON 也不失為一個實用的方案。

XML 資料

<?xml version="1.0"?>
<!DOCTYPE catalog SYSTEM "catalog.dtd">
<catalog>
  <product description="Cardigan Sweater">
   <catalog_item gender="Men's">
     <item_number>QWZ5671</item_number>
     <price>39.95</price>
     <size description="Medium">
       <color_swatch image="red_cardigan.jpg">Red</color_swatch>
       <color_swatch image="burgundy_cardigan.jpg">Burgundy</color_swatch>
     </size>
     <size description="Large">
       <color_swatch image="red_cardigan.jpg">Red</color_swatch>
       <color_swatch image="burgundy_cardigan.jpg">Burgundy</color_swatch>
     </size>
   </catalog_item>
   <catalog_item gender="Women's">
     <item_number>RRX9856</item_number>
     <discount_until>Dec 25, 1995</discount_until>
     <price>42.50</price>
     <size description="Medium">
       <color_swatch image="black_cardigan.jpg">Black</color_swatch>
     </size>
   </catalog_item>
  </product>
  <script type="text/javascript"><![CDATA[function matchwo(a,b) {
    if (a < b && a < 0) { return 1; }
    else { return 0; }
}] ]></script>
</catalog>

轉換後 JSON

{
 "catalog": {
   "product": {
     "catalog_item": [{
       "item_number": {
         "keyValue": "QWZ5671"
       },
       "price": {
         "keyValue": 39.95
       },
       "size": [{
         "color_swatch": [{
           "keyValue": "Red",
           "keyAttributes": {
             "image": "red_cardigan.jpg"
           }
         }, {
           "keyValue": "Burgundy",
           "keyAttributes": {
             "image": "burgundy_cardigan.jpg"
           }
         }],
         "keyValue": null,
         "keyAttributes": {
           "description": "Medium"
         }
       }, {
         "color_swatch": [{
           "keyValue": "Red",
           "keyAttributes": {
             "image": "red_cardigan.jpg"
           }
         }, {
           "keyValue": "Burgundy",
           "keyAttributes": {
             "image": "burgundy_cardigan.jpg"
           }
         }],
         "purchased": {
           "keyValue": null
         },
         "keyValue": null,
         "keyAttributes": {
           "description": "Large"
         }
       }],
       "keyValue": null,
       "keyAttributes": {
         "gender": "Men's"
       }
     }, {
       "item_number": {
         "keyValue": "RRX9856"
       },
       "discount_until": {
         "keyValue": new Date(1995, 11, 25)
       },
       "price": {
         "keyValue": 42.5
       },
       "size": {
         "color_swatch": {
           "keyValue": "Black",
           "keyAttributes": {
             "image": "black_cardigan.jpg"
           }
         },
         "keyValue": null,
         "keyAttributes": {
           "description": "Medium"
         }
       },
       "keyValue": null,
       "keyAttributes": {
         "gender": "Women's"
       }
     }],
     "keyValue": null,
     "keyAttributes": {
       "description": "Cardigan Sweater"
     }
   },
   "script": {
     "keyValue": "function matchwo(a,b) {\n if (a < b && a < 0) { return 1; }\n else { return 0; }\n}",
     "keyAttributes": {
       "type": "text/javascript"
     }
   },
   "keyValue": null
 },
 "keyValue": null
}