[wp-trac] [WordPress Trac] #61182: Normalize UTF-8 charset slug detection.

[WordPress Trac]

#61182: Normalize UTF-8 charset slug detection.
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 Reporter:  dmsnell                   |       Owner:  dmsnell
     Type:  enhancement               |      Status:  closed
 Priority:  normal                    |   Milestone:  6.6
Component:  General                   |     Version:  trunk
 Severity:  normal                    |  Resolution:  fixed
 Keywords:  has-patch has-unit-tests  |     Focuses:
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Changes (by dmsnell):

 * owner:  (none) => dmsnell
 * status:  new => closed
 * resolution:   => fixed


Comment:

 In [changeset:"58147" 58147]:
 {{{
 #!CommitTicketReference repository="" revision="58147"
 Normalize UTF-8 charset slug detection.

 There are several exist places in Core that attempt to detect if a blog
 charset
 is UTF-8. Each place attempts to perform the same check, except the logic
 is
 spread throughout and there's no single method provided to make this
 determination in a consistent way. The `_canonical_charset()` method
 exists,
 but is marked private for use.

 In this patch the new `unicode` module provides `is_utf8_charset()` as a
 method
 taking an optional charset slug and indicating if it represents UTF-8,
 examining all of the allowable variants of that slug. Associated code is
 updated to use this new function, including `_canonical_charset()`. If no
 slug
 is provided, it will look up the current `get_option( 'blog_charset' )`.

 Finally, the test functions governing `_canonical_charset()` have been
 rewritten as a single test with a data provider instead of as separate
 test
 functions.

 Developed in https://github.com/WordPress/wordpress-develop/pull/6535
 Discussed in https://core.trac.wordpress.org/ticket/61182

 Fixes #61182.
 Props dmsnell, jonsurrell.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/61182#comment:4>
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