@lezer/xml

What is @lezer/xml?

@lezer/xml is a parser for XML syntax built on the Lezer parser system. It provides tools to parse XML documents, create syntax trees, and perform syntax highlighting. This package is useful for applications that need to process or analyze XML data.

What are @lezer/xml's main functionalities?

Parsing XML

This feature allows you to parse an XML string and generate a syntax tree. The code sample demonstrates how to parse a simple XML string and print the resulting syntax tree.

const {parser} = require('@lezer/xml');
const input = '<root><child>Content</child></root>';
const tree = parser.parse(input);
console.log(tree.toString());

Syntax Highlighting

This feature allows you to perform syntax highlighting on an XML string. The code sample demonstrates how to parse an XML string and apply syntax highlighting using CodeMirror's highlighting utilities.

const {parser} = require('@lezer/xml');
const {highlightTree} = require('@codemirror/highlight');
const {defaultHighlighter} = require('@codemirror/highlight');
const input = '<root><child>Content</child></root>';
const tree = parser.parse(input);
let highlighted = '';
highlightTree(tree, defaultHighlighter, (from, to, classes) => {
  highlighted += input.slice(from, to);
  highlighted += ` [${classes}]`;
});
console.log(highlighted);

Other packages similar to @lezer/xml

xml2js

xml2js is a simple XML to JavaScript object converter. It is useful for converting XML data into a more manageable JavaScript object format. Unlike @lezer/xml, which focuses on parsing and syntax trees, xml2js is more about data transformation.

fast-xml-parser

fast-xml-parser is a fast and lightweight XML parser that can convert XML to JSON and vice versa. It is designed for performance and ease of use. Compared to @lezer/xml, fast-xml-parser is more focused on data conversion rather than syntax analysis.

sax

sax is a streaming XML parser for JavaScript. It provides an event-based API for parsing XML documents. While @lezer/xml is more about building syntax trees, sax is useful for applications that need to process XML data in a streaming fashion.

README

@lezer/xml

This is an XML grammar for the lezer parser system.

The code is licensed under an MIT license.

Changelog

1.0.5 (2024-03-04)

Bug fixes

Fix a mistake that broke highlighting for mismatched tag names.