xml-lexer

Simple JavaScript Lexer for XML documents

Features

- Very small, fast and simple! (~250 sloc)
- Event driven API (SAX-like)
- Works in Browser, WebWorkers, ServiceWorkers, Node.js or React Native
- Fault tolerant
- Handles CDATA
- Easy to extend and fine tune (state machine is exposed in Lexer instances)

If you are looking for a XML Reader/Parser to convert XML documents into Javascript objects, check my other projects:
- xml-reader
- xml-query

Install

``bash
npm install --save xml-lexer
`

Examples

$3

`javascript
const lexer = require('xml-lexer').create();

const xml =

Hello, world!
;

lexer.on('data', (data) => console.log(data));
lexer.write(xml);

/*
Console output:

{ type: 'open-tag', value: 'hello' }
{ type: 'attribute-name', value: 'color' }
{ type: 'attribute-value', value: 'blue' }
{ type: 'open-tag', value: 'greeting' }
{ type: 'data', value: 'Hello, world!' }
{ type: 'close-tag', value: 'greeting' }
{ type: 'close-tag', value: 'hello' }
*/
`


$3

`javascript
const lexer = require('xml-lexer').create();

const chunk1 = ; // note this
const chunk2 = ing>Hello, world!;

lexer.on('data', (data) => console.log(data));
lexer.write(chunk1);
lexer.write(chunk2);

/*
Console output:

{ type: 'open-tag', value: 'hello' }
{ type: 'open-tag', value: 'greeting' }
{ type: 'data', value: 'Hello, world!' }
{ type: 'close-tag', value: 'greeting' }
{ type: 'close-tag', value: 'hello' }
*/
`

$3

`javascript
const lexer = require('xml-lexer').create();

lexer.on('data', (data) => console.log(data));
lexer.write(<hi);

/*
Console output (note the open-tag value):

{ type: 'open-tag', value: '{ type: 'data', value: 'hi' }
{ type: 'close-tag', value: 'hello' }
*/
`

$3

`javascript
const Lexer = require('xml-lexer');
const lexer = Lexer.create();

lexer.stateMachine[Lexer.State.tagBegin][Lexer.Action.lt] = () => {};
lexer.stateMachine[Lexer.State.tagName][Lexer.Action.error] = () => {};

lexer.on('data', (data) => console.log(data));
lexer.write(<hi);

/*
Console output (note the fixed open-tag value):

{ type: 'open-tag', value: 'hello' }
{ type: 'data', value: 'hi' }
{ type: 'close-tag', value: 'hello' }
*/
``

License

MIT