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Formatting: Add capital Eszett (ẞ → SS) to remove_accents() for German locale#11188

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apermo wants to merge 4 commits intoWordPress:trunkfrom
apermo:trac-64821
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Formatting: Add capital Eszett (ẞ → SS) to remove_accents() for German locale#11188
apermo wants to merge 4 commits intoWordPress:trunkfrom
apermo:trac-64821

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@apermo apermo commented Mar 6, 2026

Adds (U+1E9E, LATIN CAPITAL LETTER SHARP S) → SS to the German locale block in remove_accents(), directly after the existing ßss entry.

The uppercase ß was officially standardized in German orthography in 2017 (DIN 5008 revision). This is an edge case — ẞ appears almost exclusively in all-caps contexts such as street names and official documents — but it is included for completeness and consistency: every other character in the German locale block has both its upper and lowercase form mapped.

Without this fix, falls through without a mapping and is returned unchanged, leading to URL-encoded characters in slugs:

remove_accents( 'STRAẞE', 'de_DE' );
// Before: STRAẞE  (ẞ unchanged)
// After:  STRASSE

Trac ticket: https://core.trac.wordpress.org/ticket/64821

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This patch was developed with the assistance of Claude Code (Anthropic). The change, test case, and Trac ticket were reviewed and approved by the contributor before submission.


This Pull Request is for code review only. Please keep all other discussion in the Trac ticket. Do not merge this Pull Request. See GitHub Pull Requests for Code Review in the Core Handbook for more details.

Adds ẞ (U+1E9E) → SS to the German locale block, mirroring
the existing ß → ss entry. Standardized in German orthography
in 2017 (DIN 5008). Fixes #64821.
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Props apermo, dmsnell.

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looks good, except the comment should be updated. I can add that if you want.

apermo added 2 commits March 6, 2026 16:52
Adds ẞ (U+1E9E) to the German locale table in the docblock and
adds a @SInCE tag for the 7.1.0 addition. See #64821.
The target version is not yet determined. See #64821.
apermo added a commit to apermo/gutenberg that referenced this pull request Mar 6, 2026
Mirrors WordPress/wordpress-develop#11188 which adds the same mapping
to PHP remove_accents(). ẞ (U+1E9E) was standardized in German
orthography in 2017 (DIN 5008) and should map to SS, not fall through
to URL-encoded output.
pento pushed a commit that referenced this pull request Mar 6, 2026
The capital Eszett was standardized in German orthography in 2017, DIN 5008, but WordPress has only been transforming the lowercase version.

This patch adds the uppercase variant to the list and transforms it to “SS” for more-appriate slug and permalink generation.

Developed in: #11188
Discussed in: https://core.trac.wordpress.org/ticket/64821

Props apermo, dmsnell.
Fixes #64821.


git-svn-id: https://develop.svn.wordpress.org/trunk@61855 602fd350-edb4-49c9-b593-d223f7449a82
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github-actions bot commented Mar 6, 2026

A commit was made that fixes the Trac ticket referenced in the description of this pull request.

SVN changeset: 61855
GitHub commit: 667ef1f

This PR will be closed, but please confirm the accuracy of this and reopen if there is more work to be done.

@github-actions github-actions bot closed this Mar 6, 2026
@dmsnell dmsnell deleted the trac-64821 branch March 6, 2026 18:02
markjaquith pushed a commit to markjaquith/WordPress that referenced this pull request Mar 6, 2026
The capital Eszett was standardized in German orthography in 2017, DIN 5008, but WordPress has only been transforming the lowercase version.

This patch adds the uppercase variant to the list and transforms it to “SS” for more-appriate slug and permalink generation.

Developed in: WordPress/wordpress-develop#11188
Discussed in: https://core.trac.wordpress.org/ticket/64821

Props apermo, dmsnell.
Fixes #64821.

Built from https://develop.svn.wordpress.org/trunk@61855


git-svn-id: http://core.svn.wordpress.org/trunk@61142 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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2 participants