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Move is_utf8_charset() into functions.php

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This caused issues in maintenance mode, and it's not warranted to have
its own module. This will live alongside `_canonical_charset()`, it's
partner function.

Fixes: #61182.
Props: dmsnell, sergeybiryukov, swisspiddy.
Follow-up to: [58148].

Built from https://develop.svn.wordpress.org/trunk@58169


git-svn-id: http://core.svn.wordpress.org/trunk@57632 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
dmsnell 2024-05-18 18:22:14 +00:00
parent c649fd77bd
commit c4ff251f13
4 changed files with 44 additions and 53 deletions
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43
wp-includes/functions.php
View File

@ -7465,6 +7465,49 @@ function get_tag_regex( $tag ) {
return sprintf( '<%1$s[^<]*(?:>[\s\S]*<\/%1$s>|\s*\/>)', tag_escape( $tag ) );
}
/**
* Indicates if a given slug for a character set represents the UTF-8
* text encoding. If not provided, examines the current blog's charset.
*
* A charset is considered to represent UTF-8 if it is a case-insensitive
* match of "UTF-8" with or without the hyphen.
*
* Example:
*
* true === is_utf8_charset( 'UTF-8' );
* true === is_utf8_charset( 'utf8' );
* false === is_utf8_charset( 'latin1' );
* false === is_utf8_charset( 'UTF 8' );
*
* // Only strings match.
* false === is_utf8_charset( [ 'charset' => 'utf-8' ] );
*
* // Without a given charset, it depends on the site option "blog_charset".
* $is_utf8 = is_utf8_charset();
*
* @since 6.6.0
*
* @param ?string $blog_charset Slug representing a text character encoding, or "charset".
* E.g. "UTF-8", "Windows-1252", "ISO-8859-1", "SJIS".
* @return bool Whether the slug represents the UTF-8 encoding.
*/
function is_utf8_charset( $blog_charset = null ) {
$charset_to_examine = $blog_charset ?? get_option( 'blog_charset' );
/*
* Only valid string values count: the absence of a charset
* does not imply any charset, let alone UTF-8.
*/
if ( ! is_string( $charset_to_examine ) ) {
return false;
}
return (
0 === strcasecmp( 'UTF-8', $charset_to_examine ) ||
0 === strcasecmp( 'UTF8', $charset_to_examine )
);
}
/**
* Retrieves a canonical form of the provided charset appropriate for passing to PHP
* functions such as htmlspecialchars() and charset HTML attributes.

51
wp-includes/unicode.php
View File

@ -1,51 +0,0 @@
<?php
/**
* WordPress API providing Unicode-relevant utilities.
*
* @since 6.6.0
*
* @package WordPress
*/
/**
* Indicates if a given slug for a character set represents the UTF-8
* text encoding. If not provided, examines the current blog's charset.
*
* A charset is considered to represent UTF-8 if it is a case-insensitive
* match of "UTF-8" with or without the hyphen.
*
* Example:
*
* true === is_utf8_charset( 'UTF-8' );
* true === is_utf8_charset( 'utf8' );
* false === is_utf8_charset( 'latin1' );
* false === is_utf8_charset( 'UTF 8' );
*
* // Only strings match.
* false === is_utf8_charset( [ 'charset' => 'utf-8' ] );
*
* // Without a given charset, it depends on the site option "blog_charset".
* $is_utf8 = is_utf8_charset();
*
* @since 6.6.0
*
* @param ?string $blog_charset Slug representing a text character encoding, or "charset".
* E.g. "UTF-8", "Windows-1252", "ISO-8859-1", "SJIS".
* @return bool Whether the slug represents the UTF-8 encoding.
*/
function is_utf8_charset( $blog_charset = null ) {
$charset_to_examine = $blog_charset ?? get_option( 'blog_charset' );
/*
* Only valid string values count: the absence of a charset
* does not imply any charset, let alone UTF-8.
*/
if ( ! is_string( $charset_to_examine ) ) {
return false;
}
return (
0 === strcasecmp( 'UTF-8', $charset_to_examine ) ||
0 === strcasecmp( 'UTF8', $charset_to_examine )
);
}

2
wp-includes/version.php
View File

@ -16,7 +16,7 @@
*
* @global string $wp_version
*/
$wp_version = '6.6-alpha-58168';
$wp_version = '6.6-alpha-58169';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.

1
wp-settings.php
View File

@ -106,7 +106,6 @@ if ( WP_CACHE && apply_filters( 'enable_loading_advanced_cache_dropin', true ) &
wp_set_lang_dir();
// Load early WordPress files.
require ABSPATH . WPINC . '/unicode.php';
require ABSPATH . WPINC . '/class-wp-list-util.php';
require ABSPATH . WPINC . '/formatting.php';
require ABSPATH . WPINC . '/meta.php';