https://github.com/rampaa/unicoderangetoutf16compliantregex

Non-Basic Multilingual Plane Regex Ranges to UTF-16 Compliant Regex
https://github.com/rampaa/unicoderangetoutf16compliantregex

regex regex-pattern regexp supplementary-plane surrogate-pairs unicode utf-16

Last synced: about 1 year ago
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Non-Basic Multilingual Plane Regex Ranges to UTF-16 Compliant Regex

• Host: GitHub
• URL: https://github.com/rampaa/unicoderangetoutf16compliantregex
• Owner: rampaa
• License: other
• Created: 2023-12-24T17:46:13.000Z (over 2 years ago)
• Default Branch: master
• Last Pushed: 2023-12-24T20:20:57.000Z (over 2 years ago)
• Last Synced: 2025-01-27T23:43:18.902Z (over 1 year ago)
• Topics: regex, regex-pattern, regexp, supplementary-plane, surrogate-pairs, unicode, utf-16
• Language: C#
• Homepage:
• Size: 21.5 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
Some programming languages that use UTF-16 for strings face problems with unicode ranges not found in [Basic Multilingual Plane](https://en.wikipedia.org/wiki/Plane_(Unicode)#Basic_Multilingual_Plane) (e.g., [CJK Unified Ideographs Extension B](https://en.wikipedia.org/wiki/CJK_Unified_Ideographs_Extension_B)) while matching those characters with using RegEx (see: https://github.com/dotnet/runtime/issues/79865). This program converts unsupported unicode range RegExes into UTF-16 compliant RegExes. For example, `[\U00020000-\U0002A6DF]` will be converted into `\uD840[\uDC00-\uDFFF]|[\uD841-\uD868][\uDC00-\uDFFF]|\uD869[\uDC00-\uDEDF]`.

The code is basically taken from https://stackoverflow.com/a/47627127 with some small modifications. This repo solely exists for the sake of convenience.