Universal agent character enforcement, knowledge indexing, and memory with YAML frontmatter. True plugin: install once, reference as @character-kit in any harness config.

Map of named character references

Decode named character references

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

Map of named character references from HTML 4

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

micromark utility to handle character codes

micromark utility to classify whether a character is whitespace or punctuation

POSIX character classes for creating regular expressions.

micromark utility to decode numeric character references

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!)

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

font family extension for tiptap

character encoding utilities