Fast and simple Javascript-based XML generator/builder for Node projects.
Install
$ npm install xml
API
xml(xmlObject, options)
Returns a XML string.
var xml = require('xml'); var xmlString = xml(xmlObject, options);
xmlObject
xmlObject is a normal JavaScript Object/JSON object that defines the data for the XML string.
Keys will become tag names.
Values can be an array of xmlObjects or a value such as a string or number.
xml({a: 1}) === '<a>1</a>' xml({nested: [{ keys: [{ fun: 'hi' }]}]}) === '<nested><keys><fun>hi</fun></keys></nested>'
There are two special keys:
_attr
Set attributes using a hash of key/value pairs.
xml({a: [{ _attr: { attributes: 'are fun', too: '!' }}, 1]}) === '<a attributes="are fun" too="!">1</a>'
_cdata
Value of _cdata is wrapped in xml ![CDATA[]] so the data does not need to be escaped.
xml({a: { _cdata: "i'm not escaped: <xml>!"}}) === '<a><![CDATA[i\'m not escaped: <xml>!]]></a>'
Mixed together:
xml({a: { _attr: { attr:'hi'}, _cdata: "I'm not escaped" }}) === '<a attr="hi"><![CDATA[I\'m not escaped]]></a>'
options
indent optional string What to use as a tab. Defaults to no tabs (compressed).
For example you can use '\t' for tab character, or ' ' for two-space tabs.
stream Return the result as a stream.
Stream Example
var elem = xml.element({ _attr: { decade: '80s', locale: 'US'} }); var stream = xml({ toys: elem }, { stream: true }); stream.on('data', function (chunk) {console.log("data:", chunk)}); elem.push({ toy: 'Transformers' }); elem.push({ toy: 'GI Joe' }); elem.push({ toy: [{name:'He-man'}] }); elem.close(); /* result: data: <toys decade="80s" locale="US"> data: <toy>Transformers</toy> data: <toy>GI Joe</toy> data: <toy> <name>He-man</name> </toy> data: </toys> */
Declaration optional Add default xml declaration as first node.
options are:
- encoding: 'value'
- standalone: 'value'
Declaration Example
xml([ { a: 'test' }], { declaration: true }) //result: '<?xml version="1.0" encoding="UTF-8"?><a>test</a>' xml([ { a: 'test' }], { declaration: { standalone: 'yes', encoding: 'UTF-16' }}) //result: '<?xml version="1.0" encoding="UTF-16" standalone="yes"?><a>test</a>'
Examples
Simple Example
var example1 = [ { url: 'http://www.google.com/search?aq=f&sourceid=chrome&ie=UTF-8&q=opower' } ]; console.log(XML(example1)); //<url>http://www.google.com/search?aq=f&sourceid=chrome&ie=UTF-8&q=opower</url>
Example with attributes
var example2 = [ { url: { _attr: { hostname: 'www.google.com', path: '/search?aq=f&sourceid=chrome&ie=UTF-8&q=opower' } } } ]; console.log(XML(example2)); //result: <url hostname="www.google.com" path="/search?aq=f&sourceid=chrome&ie=UTF-8&q=opower"/>
Example with array of same-named elements and nice formatting
var example3 = [ { toys: [ { toy: 'Transformers' } , { toy: 'GI Joe' }, { toy: 'He-man' } ] } ]; console.log(XML(example3)); //result: <toys><toy>Transformers</toy><toy>GI Joe</toy><toy>He-man</toy></toys> console.log(XML(example3, true)); /* result: <toys> <toy>Transformers</toy> <toy>GI Joe</toy> <toy>He-man</toy> </toys> */
More complex example
var example4 = [ { toys: [ { _attr: { decade: '80s', locale: 'US'} }, { toy: 'Transformers' } , { toy: 'GI Joe' }, { toy: 'He-man' } ] } ]; console.log(XML(example4, true)); /* result: <toys decade="80s" locale="US"> <toy>Transformers</toy> <toy>GI Joe</toy> <toy>He-man</toy> </toys> */
Even more complex example
var example5 = [ { toys: [ { _attr: { decade: '80s', locale: 'US'} }, { toy: 'Transformers' } , { toy: [ { _attr: { knowing: 'half the battle' } }, 'GI Joe'] }, { toy: [ { name: 'He-man' }, { description: { _cdata: '<strong>Master of the Universe!</strong>'} } ] } ] } ]; console.log(XML(example5, true)); /* result: <toys decade="80s" locale="US"> <toy>Transformers</toy> <toy knowing="half the battle"> GI Joe </toy> <toy> <name>He-man</name> <description><![CDATA[<strong>Master of the Universe!</strong>]]></description> </toy> </toys> */
Tests
Tests included use AVA. Use npm test to run the tests.
Examples
There are examples in the examples directory.
Contributing
Contributions to the project are welcome. Feel free to fork and improve. I accept pull requests when tests are included.
