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Get the visual width of a string - the number of columns required to display it

Check if the character represented by a given Unicode code point is fullwidth

Strip the final newline character from a string or Uint8Array

Detect the dominant newline character of a string

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

Character encoding detector

Get the visual width of the widest line in a string - the number of columns required to display it

Map of named character references

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

Easy way to split a string on a given character unless it's quoted or escaped.

Parse HTML character references

Check if a character is decimal

POSIX character classes for creating regular expressions.

Determine the East Asian Width of a Unicode character

Count how often a character (or substring) is used in a string

micromark utility to classify whether a character is whitespace or punctuation

micromark utility to handle character codes

Check if a character is alphabetical

micromark utility to decode numeric character references

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