├── .gitignore
├── example
    ├── convert.js
    ├── output.xml
    └── input.json
├── package.json
├── README.md
└── index.js


/.gitignore:
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1 | node_modules
2 | .DS_Store
3 | test*


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/example/convert.js:
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1 | var jax = require("../index"),
2 |     inputJSON = require("fs").readFileSync(__dirname+"/input.json", "utf-8");
3 | 
4 | console.log(jax(inputJSON));


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/package.json:
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 1 | {
 2 |   "name": "jax",
 3 |   "version": "0.1.0",
 4 |   "description": "Convert JSON from GData API's back to XML",
 5 |   "main": "index.js",
 6 |   "scripts": {
 7 |     "test": "echo \"Error: no test specified\" && exit 1"
 8 |   },
 9 |   "repository": "",
10 |   "author": "Andris Reinman",
11 |   "license": "MIT"
12 | }
13 | 


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/README.md:
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 1 | # jax
 2 | 
 3 | Convert JSON to XML. Useful for converting Google API JSON structures back to XML.
 4 | 
 5 | ## Installation
 6 | 
 7 |     npm install jax
 8 | 
 9 | ## Usage
10 | 
11 |     var jax = require("jax");
12 | 
13 |     inputJSON = fs.readFileSync("data.json", "utf-8");
14 |     outputXML = jax(input);
15 | 
16 | See example/input.json and example/output.xml for sample data format
17 | 
18 | ## License
19 | 
20 | MIT


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/example/output.xml:
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 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <entry xmlns="http://www.w3.org/2005/Atom" xmlns:gContact="http://schemas.google.com/contact/2008" xmlns:batch="http://schemas.google.com/gdata/batch" xmlns:gd="http://schemas.google.com/g/2005" gd:etag="&quot;SHw7ezVSLyt7I2A9WhNTEE8OQgE.&quot;">
 3 |     <id>http://www.google.com/m8/feeds/contacts/andris.reinman%40gmail.com/base/4acc2efb88cc1547</id>
 4 |     <updated>2012-10-12T06:49:19.203Z</updated>
 5 |     <app:edited xmlns:app="http://www.w3.org/2007/app">2012-10-12T06:49:19.203Z</app:edited>
 6 |     <category scheme="http://schemas.google.com/g/2005#kind" term="http://schemas.google.com/contact/2008#contact" />
 7 |     <title>Koogel Moogel</title>
 8 |     <content>Some notes about this contact</content>
 9 |     <link rel="self" type="application/atom+xml" href="https://www.google.com/m8/feeds/contacts/andris.reinman%40gmail.com/base/4acc2efb88cc1547" />
10 |     <link rel="edit" type="application/atom+xml" href="https://www.google.com/m8/feeds/contacts/andris.reinman%40gmail.com/base/4acc2efb88cc1547" />
11 |     <gd:name>
12 |         <gd:fullName>Koogel Moogel</gd:fullName>
13 |         <gd:givenName>Koogel</gd:givenName>
14 |         <gd:familyName>Moogel</gd:familyName>
15 |     </gd:name>
16 |     <gd:phoneNumber rel="http://schemas.google.com/g/2005#other" uri="tel:+372-123-4567">+3721234567</gd:phoneNumber>
17 | </entry>


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/example/input.json:
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 1 | {
 2 |     "version": "1.0",
 3 |     "encoding": "UTF-8",
 4 |     "entry": {
 5 |         "xmlns": "http://www.w3.org/2005/Atom",
 6 |         "xmlns$gContact": "http://schemas.google.com/contact/2008",
 7 |         "xmlns$batch": "http://schemas.google.com/gdata/batch",
 8 |         "xmlns$gd": "http://schemas.google.com/g/2005",
 9 |         "gd$etag": "\"SHw7ezVSLyt7I2A9WhNTEE8OQgE.\"",
10 |         "id": {
11 |             "$t": "http://www.google.com/m8/feeds/contacts/andris.reinman%40gmail.com/base/4acc2efb88cc1547"
12 |         },
13 |         "updated": {
14 |             "$t": "2012-10-12T06:49:19.203Z"
15 |         },
16 |         "app$edited": {
17 |             "xmlns$app": "http://www.w3.org/2007/app",
18 |             "$t": "2012-10-12T06:49:19.203Z"
19 |         },
20 |         "category": [{
21 |             "scheme": "http://schemas.google.com/g/2005#kind",
22 |             "term": "http://schemas.google.com/contact/2008#contact"
23 |         }],
24 |         "title": {
25 |             "$t": "Koogel Moogel"
26 |         },
27 |         "content": {
28 |             "$t": "Some notes about this contact"
29 |         },
30 |         "link": [{
31 |             "rel": "self",
32 |             "type": "application/atom+xml",
33 |             "href": "https://www.google.com/m8/feeds/contacts/andris.reinman%40gmail.com/base/4acc2efb88cc1547"
34 |         }, {
35 |             "rel": "edit",
36 |             "type": "application/atom+xml",
37 |             "href": "https://www.google.com/m8/feeds/contacts/andris.reinman%40gmail.com/base/4acc2efb88cc1547"
38 |         }],
39 |         "gd$name": {
40 |             "gd$fullName": {
41 |                 "$t": "Koogel Moogel"
42 |             },
43 |             "gd$givenName": {
44 |                 "$t": "Koogel"
45 |             },
46 |             "gd$familyName": {
47 |                 "$t": "Moogel"
48 |             }
49 |         },
50 |         "gd$phoneNumber": [{
51 |             "rel": "http://schemas.google.com/g/2005#other",
52 |             "uri": "tel:+372-123-4567",
53 |             "$t": "+3721234567"
54 |         }]
55 |     }
56 | }


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/index.js:
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  1 | var fs = require("fs");
  2 | 
  3 | module.exports = jax;
  4 | 
  5 | /**
  6 |  * Converts JSON to XML. Expects $t for text tags. First root object
  7 |  * is used as the XML root, other objects are discarded. 
  8 |  * 
  9 |  * @param {Object|String} JSON string or an object to be converted to XML
 10 |  * @return {String} XML output
 11 |  */
 12 | function jax(object){
 13 |     var rootElement,
 14 |         headParams = [],
 15 |         xml = "";
 16 | 
 17 |     if(typeof object == "string"){
 18 |         object = JSON.parse(object);
 19 |     }
 20 | 
 21 |     Object.keys(object).forEach(function(key){
 22 |         if(typeof object[key] != "object"){
 23 |             headParams.push(key.replace(/[\$]/g, ":")+'="'+escapeValue(object[key])+'"');
 24 |         }else{
 25 |             rootElement = {name: key, content: object[key]};
 26 |         }    
 27 |     });
 28 | 
 29 |     xml += "<?xml "+headParams.join(" ")+"?>";
 30 |     if(rootElement){
 31 |         xml += drawBranch(rootElement.name, rootElement.content);
 32 |     }
 33 | 
 34 |     return xml;
 35 | }
 36 | 
 37 | /**
 38 |  * Draws XML for a branch object, recursive function
 39 |  * 
 40 |  * @param {Object|String} Object to be converted to XML
 41 |  * @return {String} XML output
 42 |  */
 43 | function drawBranch(name, object, level){
 44 |     name = (name || "").replace(/[\$]/g, ":");
 45 |     level = level || 0;
 46 |     var branches = [], params = [], start, end;
 47 |     Object.keys(object).forEach(function(key){
 48 |         if(Array.isArray(object[key])){
 49 |             object[key].forEach(function(elm){
 50 |                 branches.push(drawBranch(key, elm, level + 1));
 51 |             });
 52 |         }else if(typeof object[key] == "object"){
 53 |             branches.push(drawBranch(key, object[key], level + 1));
 54 |         }else if(key != "$t"){
 55 |             params.push(key.replace(/[\$]/g, ":")+'="'+escapeValue(object[key])+'"')
 56 |         }
 57 |     });
 58 |     
 59 |     if(object.$t){
 60 |         branches.unshift(escapeText(object.$t));
 61 |     }
 62 | 
 63 |     if(branches.length){
 64 |         start = "<" + name + (params.length?" "+params.join(" "):"") + ">";
 65 |         end = "</" + name + ">";
 66 |     }else{
 67 |         start = "<" + name + (params.length?" "+params.join(" "):"") + "/>";
 68 |         end = "";
 69 |     }
 70 |     return start + branches.join("") + end;
 71 |     
 72 | }
 73 | 
 74 | /**
 75 |  * Escapes text values ($t)
 76 |  *
 77 |  * @param {String} str String value to be escaped
 78 |  */
 79 | function escapeText(str){
 80 |     str = (str || "").toString().trim().
 81 |         replace(/&/g,"&amp;").
 82 |         replace(/</g,"&lt;").
 83 |         replace(/>/g,"&gt;");
 84 | 
 85 |     return str;
 86 | }
 87 | 
 88 | /**
 89 |  * Escapes attribute values
 90 |  *
 91 |  * @param {String} str String value to be escaped
 92 |  */
 93 | function escapeValue(str){
 94 |     str = (str || "").toString().trim().
 95 |         replace(/&/g,"&amp;").
 96 |         replace(/"/g,"&quot;").
 97 |         replace(/</g,"&lt;").
 98 |         replace(/>/g,"&gt;");
 99 | 
100 |     return str;
101 | }
102 | 
103 | 


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