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Title: Enable UTF-8 string support by khasinski · Pull Request #255 · mrubyc/mrubyc · GitHub

Open Graph Title: Enable UTF-8 string support by khasinski · Pull Request #255 · mrubyc/mrubyc

X Title: Enable UTF-8 string support by khasinski · Pull Request #255 · mrubyc/mrubyc

Description: mruby/c is another implementation of mruby. Contribute to mrubyc/mrubyc development by creating an account on GitHub.

Open Graph Description: Summary This PR enables comprehensive UTF-8 string support for mruby/c, building on the excellent foundation laid by @ima1zumi in PR #191. Thank you, Mari, for your inspiring RubyKaigi 2025 opening...

X Description: Summary This PR enables comprehensive UTF-8 string support for mruby/c, building on the excellent foundation laid by @ima1zumi in PR #191. Thank you, Mari, for your inspiring RubyKaigi 2025 opening...

Opengraph URL: https://github.com/mrubyc/mrubyc/pull/255

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Enable UTF-8 string supporthttps://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255#top
khasinskihttps://patch-diff.githubusercontent.com/khasinski
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Jan 27, 2026https://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255#issue-3862703448
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Jan 29, 2026https://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255#issuecomment-3815334550
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January 29, 2026 10:03https://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255#commits-pushed-9f026ff
https://patch-diff.githubusercontent.com/khasinski
Add UTF-8 string support with MRBC_USE_STRING_UTF8 flaghttps://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255/commits/9f026ffcedf9a7d3718294d2865ac0c11ece8e65
9f026ffhttps://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255/commits/9f026ffcedf9a7d3718294d2865ac0c11ece8e65
mrubyc#191https://github.com/mrubyc/mrubyc/pull/191
https://patch-diff.githubusercontent.com/khasinski
Add UTF-8 support to slice! and split, add comprehensive testshttps://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255/commits/86a57248f84c93eb2f4d961ae826794c2a27da67
86a5724https://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255/commits/86a57248f84c93eb2f4d961ae826794c2a27da67
https://patch-diff.githubusercontent.com/khasinski
Regenerate symbol table with correct alphabetical orderhttps://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255/commits/b9a16a6cd440aa8d86a7de16ff255697b2757343
b9a16a6https://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255/commits/b9a16a6cd440aa8d86a7de16ff255697b2757343
https://patch-diff.githubusercontent.com/khasinski
Add UTF-8 improvements from Mari's PRhttps://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255/commits/8ca4c3950d88e2a278290e045f8609e1e6fa07a8
mrubyc#191https://github.com/mrubyc/mrubyc/pull/191
8ca4c39https://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255/commits/8ca4c3950d88e2a278290e045f8609e1e6fa07a8
mrubyc#191https://github.com/mrubyc/mrubyc/pull/191
https://patch-diff.githubusercontent.com/khasinski
Add UTF-8 support to String#tr and String#tr!https://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255/commits/c586dcba35b24c874aed84c9545a28216050beb3
c586dcbhttps://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255/commits/c586dcba35b24c874aed84c9545a28216050beb3
https://patch-diff.githubusercontent.com/khasinski
Add Unicode BMP case mapping support (MRBC_USE_UNICODE_CASE)https://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255/commits/9d8fde1774652c72cfaaab625dd7ddf70738a43d
9d8fde1https://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255/commits/9d8fde1774652c72cfaaab625dd7ddf70738a43d
https://patch-diff.githubusercontent.com/khasinski
Add String#bytesize methodhttps://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255/commits/135929932b57b831650185e892e621cfb3704425
1359299https://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255/commits/135929932b57b831650185e892e621cfb3704425
https://patch-diff.githubusercontent.com/khasinski
Add String#reverse and String#reverse! for UTF-8https://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255/commits/e667ed35fdbb12b2c917b2db2ac378f6a3c00683
e667ed3https://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255/commits/e667ed35fdbb12b2c917b2db2ac378f6a3c00683
https://patch-diff.githubusercontent.com/khasinski
Add comprehensive UTF-8 string testshttps://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255/commits/dc121d96897320d84035466cf2d599d3937ac1db
dc121d9https://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255/commits/dc121d96897320d84035466cf2d599d3937ac1db
https://patch-diff.githubusercontent.com/khasinski
Remove mise.toml from PRhttps://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255/commits/2969a34cf9007be6a6d72f95361b64e3ac721d24
2969a34https://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255/commits/2969a34cf9007be6a6d72f95361b64e3ac721d24
https://patch-diff.githubusercontent.com/khasinski
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Compare https://patch-diff.githubusercontent.com/mrubyc/mrubyc/compare/03786f0db56033bcb10a74a140c80251e6b92149..2969a34cf9007be6a6d72f95361b64e3ac721d24
January 29, 2026 09:03https://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255#event-22370336661
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Feb 6, 2026https://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255#issuecomment-3857888840
@khasinskihttps://github.com/khasinski
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Add String#ascii_only? methodhttps://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255/commits/af8f8a8e8dd13f23f01023b3704f1794fdf73e93
af8f8a8https://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255/commits/af8f8a8e8dd13f23f01023b3704f1794fdf73e93
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Feb 6, 2026https://patch-diff.githubusercontent.com/mrubyc/mrubyc/pull/255#issuecomment-3858922657
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