Map of invalid numeric character references to their replacements, according to HTML

textlint rule check unnessary control character in the document.

Map of named character references

List of legacy HTML named character references that don’t need a trailing semicolon

Decode named character references

Map of named character references from HTML 4

micromark utility to handle character codes

micromark utility to classify whether a character is whitespace or punctuation

micromark utility to decode numeric character references

POSIX character classes for creating regular expressions.

Get the line and column number of a specific character in a string

Convert character encodings in pure javascript.

Check if a character is a word character

Check if a character is a whitespace character

A regex to match any full character, considering weird character ranges.

Parse JavaScript one character at a time to look for snippets in Templates. This is not a validator, it's just designed to allow you to have sections of JavaScript delimited by brackets robustly.

A JavaScript library that breaks strings into their individual user-perceived characters (including emojis!)

character encoding utilities

font family extension for tiptap

A library to find JS RegExp with super-linear worst-case time complexity for attack strings that repeat a single character.