I18N: Don't use the locale for the HTML language attribute.
Locales are codes to identify a language in WordPress which can be different from the specification for language tags, see https://www.w3.org/International/articles/language-tags/. An example is `de_DE_formal` or `nl_NL_formal` where the subtag `formal` isn't officially supported. To give translators the possibility to specify the language tag of their language introduce a string `html_lang_attribute` which can be translated into the language tag which conforms to the specification. Props SergeyBiryukov. Fixes #33511. git-svn-id: https://develop.svn.wordpress.org/trunk@36802 602fd350-edb4-49c9-b593-d223f7449a82
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@ -708,8 +708,15 @@ function get_bloginfo( $show = '', $filter = 'raw' ) {
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$output = $wp_version;
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break;
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case 'language':
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$output = get_locale();
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$output = str_replace('_', '-', $output);
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/* translators: Translate this to the correct language tag for your locale,
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* see https://www.w3.org/International/articles/language-tags/ for reference.
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* Do not translate into your own language.
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*/
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$output = __( 'html_lang_attribute' );
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if ( 'html_lang_attribute' === $output || preg_match( '/[^a-zA-Z0-9-]/', $output ) ) {
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$output = get_locale();
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$output = str_replace( '_', '-', $output );
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}
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break;
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case 'text_direction':
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_deprecated_argument( __FUNCTION__, '2.2', sprintf(
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