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<title>[35517] trunk/src/wp-includes: Introduce `wp_maybe_decline_date()` for languages where certain date formats need to be declined, and hook it to the `date_i18n` filter.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/35517">35517</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/35517","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>SergeyBiryukov</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2015-11-04 21:27:41 +0000 (Wed, 04 Nov 2015)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Introduce `wp_maybe_decline_date()` for languages where certain date formats need to be declined, and hook it to the `date_i18n` filter.
If the locale specifies that month names require a genitive case in certain formats like `'j F Y'` or `'j. F'`, the month name will be replaced with a correct form.
Fixes <a href="https://core.trac.wordpress.org/ticket/11226">#11226</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesdefaultfiltersphp">trunk/src/wp-includes/default-filters.php</a></li>
<li><a href="#trunksrcwpincludesfunctionsphp">trunk/src/wp-includes/functions.php</a></li>
<li><a href="#trunksrcwpincludeslocalephp">trunk/src/wp-includes/locale.php</a></li>
</ul>
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<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpincludesdefaultfiltersphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/default-filters.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/default-filters.php 2015-11-04 21:26:58 UTC (rev 35516)
+++ trunk/src/wp-includes/default-filters.php 2015-11-04 21:27:41 UTC (rev 35517)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -159,6 +159,8 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> add_filter( 'widget_text', 'balanceTags' );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+add_filter( 'date_i18n', 'wp_maybe_decline_date' );
+
</ins><span class="cx" style="display: block; padding: 0 10px"> // RSS filters
</span><span class="cx" style="display: block; padding: 0 10px"> add_filter( 'the_title_rss', 'strip_tags' );
</span><span class="cx" style="display: block; padding: 0 10px"> add_filter( 'the_title_rss', 'ent2ncr', 8 );
</span></span></pre></div>
<a id="trunksrcwpincludesfunctionsphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/functions.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/functions.php 2015-11-04 21:26:58 UTC (rev 35516)
+++ trunk/src/wp-includes/functions.php 2015-11-04 21:27:41 UTC (rev 35517)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -159,6 +159,47 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> /**
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * Determines if the date should be declined.
+ *
+ * If the locale specifies that month names require a genitive case in certain
+ * formats (like 'j F Y'), the month name will be replaced with a correct form.
+ *
+ * @since 4.4.0
+ *
+ * @param string $date Formatted date string.
+ * @return string The date, declined if locale specifies it.
+ */
+function wp_maybe_decline_date( $date ) {
+ global $wp_locale;
+
+ /* translators: If months in your language require a genitive case,
+ * translate this to 'on'. Do not translate into your own language.
+ */
+ if ( 'on' === _x( 'off', 'decline months names: on or off' ) ) {
+ // Match a format like 'j F Y' or 'j. F'
+ if ( @preg_match( '#^\d{1,2}\.? \w+#u', $date ) ) {
+ $months = $wp_locale->month;
+
+ foreach ( $months as $key => $month ) {
+ $months[ $key ] = '#' . $month . '#';
+ }
+
+ $date = preg_replace( $months, $wp_locale->month_genitive, $date );
+ }
+ }
+
+ // Used for locale-specific rules
+ $locale = get_locale();
+
+ if ( 'ca' === $locale ) {
+ // " de abril| de agost| de octubre..." -> " d'abril| d'agost| d'octubre..."
+ $date = preg_replace( '# de ([ao])#i', " d'\\1", $date );
+ }
+
+ return $date;
+}
+
+/**
</ins><span class="cx" style="display: block; padding: 0 10px"> * Convert integer number to format based on the locale.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 2.3.0
</span></span></pre></div>
<a id="trunksrcwpincludeslocalephp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/locale.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/locale.php 2015-11-04 21:26:58 UTC (rev 35516)
+++ trunk/src/wp-includes/locale.php 2015-11-04 21:27:41 UTC (rev 35517)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -139,19 +139,33 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $this->weekday_abbrev[__('Saturday')] = /* translators: three-letter abbreviation of the weekday */ __('Sat');
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // The Months
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $this->month['01'] = /* translators: month name */ __('January');
- $this->month['02'] = /* translators: month name */ __('February');
- $this->month['03'] = /* translators: month name */ __('March');
- $this->month['04'] = /* translators: month name */ __('April');
- $this->month['05'] = /* translators: month name */ __('May');
- $this->month['06'] = /* translators: month name */ __('June');
- $this->month['07'] = /* translators: month name */ __('July');
- $this->month['08'] = /* translators: month name */ __('August');
- $this->month['09'] = /* translators: month name */ __('September');
- $this->month['10'] = /* translators: month name */ __('October');
- $this->month['11'] = /* translators: month name */ __('November');
- $this->month['12'] = /* translators: month name */ __('December');
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $this->month['01'] = /* translators: month name */ __( 'January' );
+ $this->month['02'] = /* translators: month name */ __( 'February' );
+ $this->month['03'] = /* translators: month name */ __( 'March' );
+ $this->month['04'] = /* translators: month name */ __( 'April' );
+ $this->month['05'] = /* translators: month name */ __( 'May' );
+ $this->month['06'] = /* translators: month name */ __( 'June' );
+ $this->month['07'] = /* translators: month name */ __( 'July' );
+ $this->month['08'] = /* translators: month name */ __( 'August' );
+ $this->month['09'] = /* translators: month name */ __( 'September' );
+ $this->month['10'] = /* translators: month name */ __( 'October' );
+ $this->month['11'] = /* translators: month name */ __( 'November' );
+ $this->month['12'] = /* translators: month name */ __( 'December' );
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ // The Months, genitive
+ $this->month_genitive['01'] = /* translators: month name, genitive */ _x( 'January', 'genitive' );
+ $this->month_genitive['02'] = /* translators: month name, genitive */ _x( 'February', 'genitive' );
+ $this->month_genitive['03'] = /* translators: month name, genitive */ _x( 'March', 'genitive' );
+ $this->month_genitive['04'] = /* translators: month name, genitive */ _x( 'April', 'genitive' );
+ $this->month_genitive['05'] = /* translators: month name, genitive */ _x( 'May', 'genitive' );
+ $this->month_genitive['06'] = /* translators: month name, genitive */ _x( 'June', 'genitive' );
+ $this->month_genitive['07'] = /* translators: month name, genitive */ _x( 'July', 'genitive' );
+ $this->month_genitive['08'] = /* translators: month name, genitive */ _x( 'August', 'genitive' );
+ $this->month_genitive['09'] = /* translators: month name, genitive */ _x( 'September', 'genitive' );
+ $this->month_genitive['10'] = /* translators: month name, genitive */ _x( 'October', 'genitive' );
+ $this->month_genitive['11'] = /* translators: month name, genitive */ _x( 'November', 'genitive' );
+ $this->month_genitive['12'] = /* translators: month name, genitive */ _x( 'December', 'genitive' );
+
</ins><span class="cx" style="display: block; padding: 0 10px"> // Abbreviations for each month.
</span><span class="cx" style="display: block; padding: 0 10px"> $this->month_abbrev[ __( 'January' ) ] = /* translators: three-letter abbreviation of the month */ _x( 'Jan', 'January abbreviation' );
</span><span class="cx" style="display: block; padding: 0 10px"> $this->month_abbrev[ __( 'February' ) ] = /* translators: three-letter abbreviation of the month */ _x( 'Feb', 'February abbreviation' );
</span></span></pre>
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