xml-char-classes

What is xml-char-classes?

The xml-char-classes npm package provides regular expressions for matching XML character classes. It helps in validating and working with XML data by ensuring that characters conform to XML specifications.

What are xml-char-classes's main functionalities?

Match XML Name Start Characters

This feature provides a regular expression to match valid XML name start characters. XML names must start with a letter or underscore, and this regex helps ensure that.

const xmlCharClasses = require('xml-char-classes');
const regex = new RegExp(`^[${xmlCharClasses.nameStartChar.source}]`);
console.log(regex.test('A')); // true
console.log(regex.test('1')); // false

Match XML Name Characters

This feature provides a regular expression to match valid XML name characters. XML names can include letters, digits, hyphens, underscores, and periods, and this regex helps ensure that.

const xmlCharClasses = require('xml-char-classes');
const regex = new RegExp(`^[${xmlCharClasses.nameChar.source}]+$`);
console.log(regex.test('A1-._')); // true
console.log(regex.test('A1-._ ')); // false

Match XML Char

This feature provides a regular expression to match valid XML characters. It ensures that the characters conform to the XML specification for valid characters.

const xmlCharClasses = require('xml-char-classes');
const regex = new RegExp(`^[${xmlCharClasses.char.source}]+$`);
console.log(regex.test('A1-._ ')); // true
console.log(regex.test('\u0000')); // false

Other packages similar to xml-char-classes

xml2js

The xml2js package is used for parsing XML to JavaScript objects and vice versa. While it does not focus on character classes, it provides comprehensive XML parsing and building functionalities.

fast-xml-parser

The fast-xml-parser package is a fast and lightweight XML parser. It provides similar XML parsing capabilities but does not specifically focus on character classes like xml-char-classes.

sax

The sax package is a streaming XML parser. It provides low-level parsing capabilities and can be used to validate XML data, but it does not specifically provide regular expressions for XML character classes.

README

xml-char-classes

Regular expressions for matching against the XML Character Classes

Install

$ npm install xml-char-classes

Usage

import xmlCharacterClasses from 'xml-char-classes';

console.log(xmlCharacterClasses.digit);
//=> /[0-9\u0660-\u0669\u06F0-\u06F9\u0966-\u096F\u09E6-\u09EF\u0A66-\u0A6F\u0AE6-\u0AEF\u0B66-\u0B6F\u0BE7-\u0BEF\u0C66-\u0C6F\u0CE6-\u0CEF\u0D66-\u0D6F\u0E50-\u0E59\u0ED0-\u0ED9\u0F20-\u0F29]/

xmlCharacterClasses.letter.test('unicorn');
//=> true

xmlCharacterClasses.letter.test('#');
//=> false

API

xmlCharClasses

Contains the following regular expressions for matching the different character classes in the XML spec.

• letter
• baseChar
• ideographic
• combiningChar
• digit
• extender