XML Parser for Deno

SAXParser

import { SAXParser } from 'https://denopkg.com/m-kur/xmlp@v0.9/mod.ts';

// create a SAX parser instance
const parser = new SAXParser();

// add SAX event handlers
parser.on('start_prefix_mapping', (ns, uri) => {
    console.log(`mapping start ${ns}: ${uri}`);
}).on('text', (text, element) => {
    if (element.qName === 'm:comment') {
        console.log(`${element.attributes[0].value}: ${text}`);
    }
});

// run parser, input source is Deno.Reader or Uint8Array or string
const file = await Deno.open('parser_test.xml');
await parser.parse(file);
file.close();

PullParser

import { PullParser } from 'https://denopkg.com/m-kur/xmlp@v0.9/mod.ts';

// create a pull parser instance
const parser = new PullParser();

// create an ES6 generator
const file = await Deno.readFile('parser_test.xml');
const events = parser.parse(file);

// pull events
console.log(events.next().value);
// { name: 'start_document' }
console.log(events.next().value);
// { name: 'processing_instruction', procInst: 'xml version="1.0" encoding="utf-8"' }

DOMParser

Will be realized eventually.

Acknowledgments

The basic logic of this XML parser was obtained by reading the source code of sax-js. Thanks.

Download Details:

Author: m-kur

Source Code: https://github.com/m-kur/xmlp

#deno #nodejs #javascript #node