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<title>[53710] trunk/src/wp-admin: Coding Standards: Improve readability of `wp-admin/options-permalink.php`.</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/53710">53710</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/53710","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>2022-07-16 16:18:37 +0000 (Sat, 16 Jul 2022)</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'>Coding Standards: Improve readability of `wp-admin/options-permalink.php`.

Includes: 
* Wrapping longer lines and reducing alignment levels to fit more data on the screen.
* Restoring `esc_attr()` for input values, which may include translatable parts.
* Adding comments to closing `</div>` tags and PHP `endif` statements.
* Reducing the context switching between HTML and PHP.
* Balancing PHP conditionals to better reflect the structure.
* Removing repeated function calls to improve performance.
* Renaming some variables for clarity and consistency.

Follow-up to <a href="https://core.trac.wordpress.org/changeset/470">[470]</a>, <a href="https://core.trac.wordpress.org/changeset/601">[601]</a>, <a href="https://core.trac.wordpress.org/changeset/963">[963]</a>, <a href="https://core.trac.wordpress.org/changeset/1227">[1227]</a>, <a href="https://core.trac.wordpress.org/changeset/1664">[1664]</a>, <a href="https://core.trac.wordpress.org/changeset/2746">[2746]</a>, <a href="https://core.trac.wordpress.org/changeset/3029">[3029]</a>, <a href="https://core.trac.wordpress.org/changeset/6976">[6976]</a>, <a href="https://core.trac.wordpress.org/changeset/7230">[7230]</a>, <a href="https://core.trac.wordpress.org/changeset/11350">[11350]</a>, <a href="https://core.trac.wordpress.org/changeset/14051">[14051]</a>, <a href="https://core.trac.wordpress.org/changeset/14553">[14553]</a>, <a href="https://core.trac.wordpress.org/changeset/21891">[21891]</a>, <a href="https://core.trac.wordpress.org/changeset/34691">[34691]</a>, <a href="https:
 //core.trac.wordpress.org/changeset/34749">[34749]</a>, <a href="https://core.trac.wordpress.org/changeset/37747">[37747]</a>, <a href="https://core.trac.wordpress.org/changeset/38066">[38066]</a>, <a href="https://core.trac.wordpress.org/changeset/41182">[41182]</a>, <a href="https://core.trac.wordpress.org/changeset/41986">[41986]</a>, <a href="https://core.trac.wordpress.org/changeset/42343">[42343]</a>, <a href="https://core.trac.wordpress.org/changeset/43571">[43571]</a>, <a href="https://core.trac.wordpress.org/changeset/48710">[48710]</a>, <a href="https://core.trac.wordpress.org/changeset/50830">[50830]</a>, <a href="https://core.trac.wordpress.org/changeset/51892">[51892]</a>, <a href="https://core.trac.wordpress.org/changeset/53706">[53706]</a>.

See <a href="https://core.trac.wordpress.org/ticket/55647">#55647</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpadmincssformscss">trunk/src/wp-admin/css/forms.css</a></li>
<li><a href="#trunksrcwpadminoptionspermalinkphp">trunk/src/wp-admin/options-permalink.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpadmincssformscss"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/css/forms.css</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/css/forms.css  2022-07-16 01:06:40 UTC (rev 53709)
+++ trunk/src/wp-admin/css/forms.css    2022-07-16 16:18:37 UTC (rev 53710)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1085,7 +1085,6 @@
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px"> .form-table.permalink-structure .structure-selection .row > div {
</span><span class="cx" style="display: block; padding: 0 10px">        max-width: calc(100% - 24px);
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-        margin-left: 4px;
</del><span class="cx" style="display: block; padding: 0 10px">         display: inline-flex;
</span><span class="cx" style="display: block; padding: 0 10px">        flex-direction: column;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span></span></pre></div>
<a id="trunksrcwpadminoptionspermalinkphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/options-permalink.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/options-permalink.php  2022-07-16 01:06:40 UTC (rev 53709)
+++ trunk/src/wp-admin/options-permalink.php    2022-07-16 16:18:37 UTC (rev 53710)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -57,8 +57,8 @@
</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"> $help_sidebar_content = '<p><strong>' . __( 'For more information:' ) . '</strong></p>' .
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                                '<p>' . __( '<a href="https://wordpress.org/support/article/settings-permalinks-screen/">Documentation on Permalinks Settings</a>' ) . '</p>' .
-                                               '<p>' . __( '<a href="https://wordpress.org/support/article/using-permalinks/">Documentation on Using Permalinks</a>' ) . '</p>';
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ '<p>' . __( '<a href="https://wordpress.org/support/article/settings-permalinks-screen/">Documentation on Permalinks Settings</a>' ) . '</p>' .
+       '<p>' . __( '<a href="https://wordpress.org/support/article/using-permalinks/">Documentation on Using Permalinks</a>' ) . '</p>';
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px"> if ( $is_nginx ) {
</span><span class="cx" style="display: block; padding: 0 10px">        $help_sidebar_content .= '<p>' . __( '<a href="https://wordpress.org/support/article/nginx/">Documentation on Nginx configuration</a>.' ) . '</p>';
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -73,10 +73,11 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $iis7_permalinks     = iis7_supports_permalinks();
</span><span class="cx" style="display: block; padding: 0 10px"> $permalink_structure = get_option( 'permalink_structure' );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-$prefix      = '';
-$blog_prefix = '';
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+$index_php_prefix = '';
+$blog_prefix      = '';
+
</ins><span class="cx" style="display: block; padding: 0 10px"> if ( ! got_url_rewrite() ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-        $prefix = '/index.php';
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $index_php_prefix = '/index.php';
</ins><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><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -85,7 +86,9 @@
</span><span class="cx" style="display: block; padding: 0 10px">  * network. If the `permalink_structure` option has been changed to remove this
</span><span class="cx" style="display: block; padding: 0 10px">  * base prefix, WordPress core can no longer account for the possible collision.
</span><span class="cx" style="display: block; padding: 0 10px">  */
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-if ( is_multisite() && ! is_subdomain_install() && is_main_site() && 0 === strpos( $permalink_structure, '/blog/' ) ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+if ( is_multisite() && ! is_subdomain_install() && is_main_site()
+       && 0 === strpos( $permalink_structure, '/blog/' )
+) {
</ins><span class="cx" style="display: block; padding: 0 10px">         $blog_prefix = '/blog';
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -107,8 +110,9 @@
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                if ( ! empty( $permalink_structure ) ) {
</span><span class="cx" style="display: block; padding: 0 10px">                        $permalink_structure = preg_replace( '#/+#', '/', '/' . str_replace( '#', '', $permalink_structure ) );
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        if ( $prefix && $blog_prefix ) {
-                               $permalink_structure = $prefix . preg_replace( '#^/?index\.php#', '', $permalink_structure );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+                       if ( $index_php_prefix && $blog_prefix ) {
+                               $permalink_structure = $index_php_prefix . preg_replace( '#^/?index\.php#', '', $permalink_structure );
</ins><span class="cx" style="display: block; padding: 0 10px">                         } else {
</span><span class="cx" style="display: block; padding: 0 10px">                                $permalink_structure = $blog_prefix . $permalink_structure;
</span><span class="cx" style="display: block; padding: 0 10px">                        }
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -143,7 +147,9 @@
</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"> if ( $iis7_permalinks ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-        if ( ( ! file_exists( $home_path . 'web.config' ) && win_is_writable( $home_path ) ) || win_is_writable( $home_path . 'web.config' ) ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if ( ( ! file_exists( $home_path . 'web.config' )
+               && win_is_writable( $home_path ) ) || win_is_writable( $home_path . 'web.config' )
+       ) {
</ins><span class="cx" style="display: block; padding: 0 10px">                 $writable = true;
</span><span class="cx" style="display: block; padding: 0 10px">        } else {
</span><span class="cx" style="display: block; padding: 0 10px">                $writable = false;
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -151,7 +157,9 @@
</span><span class="cx" style="display: block; padding: 0 10px"> } elseif ( $is_nginx ) {
</span><span class="cx" style="display: block; padding: 0 10px">        $writable = false;
</span><span class="cx" style="display: block; padding: 0 10px"> } else {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-        if ( ( ! file_exists( $home_path . '.htaccess' ) && is_writable( $home_path ) ) || is_writable( $home_path . '.htaccess' ) ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if ( ( ! file_exists( $home_path . '.htaccess' )
+               && is_writable( $home_path ) ) || is_writable( $home_path . '.htaccess' )
+       ) {
</ins><span class="cx" style="display: block; padding: 0 10px">                 $writable = true;
</span><span class="cx" style="display: block; padding: 0 10px">        } else {
</span><span class="cx" style="display: block; padding: 0 10px">                $writable       = false;
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -211,172 +219,214 @@
</span><span class="cx" style="display: block; padding: 0 10px"> <form name="form" action="options-permalink.php" method="post">
</span><span class="cx" style="display: block; padding: 0 10px"> <?php wp_nonce_field( 'update-permalink' ); ?>
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-        <p>
-       <?php
-               printf(
-                       /* translators: %s: Documentation URL. */
-                       __( 'WordPress offers you the ability to create a custom URL structure for your permalinks and archives. Custom URL structures can improve the aesthetics, usability, and forward-compatibility of your links. A <a href="%s">number of tags are available</a>, and here are some examples to get you started.' ),
-                       __( 'https://wordpress.org/support/article/using-permalinks/' )
-               );
-               ?>
-       </p>
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+<p>
+<?php
+printf(
+       /* translators: %s: Documentation URL. */
+       __( 'WordPress offers you the ability to create a custom URL structure for your permalinks and archives. Custom URL structures can improve the aesthetics, usability, and forward-compatibility of your links. A <a href="%s">number of tags are available</a>, and here are some examples to get you started.' ),
+       __( 'https://wordpress.org/support/article/using-permalinks/' )
+);
+?>
+</p>
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px"> <?php
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-if ( is_multisite() && ! is_subdomain_install() && is_main_site() && 0 === strpos( $permalink_structure, '/blog/' ) ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+if ( is_multisite() && ! is_subdomain_install() && is_main_site()
+       && 0 === strpos( $permalink_structure, '/blog/' )
+) {
</ins><span class="cx" style="display: block; padding: 0 10px">         $permalink_structure = preg_replace( '|^/?blog|', '', $permalink_structure );
</span><span class="cx" style="display: block; padding: 0 10px">        $category_base       = preg_replace( '|^/?blog|', '', $category_base );
</span><span class="cx" style="display: block; padding: 0 10px">        $tag_base            = preg_replace( '|^/?blog|', '', $tag_base );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-$structures = array(
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+$default_structures = array(
</ins><span class="cx" style="display: block; padding: 0 10px">         0 => '',
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-        1 => $prefix . '/%year%/%monthnum%/%day%/%postname%/',
-       2 => $prefix . '/%year%/%monthnum%/%postname%/',
-       3 => $prefix . '/' . _x( 'archives', 'sample permalink base' ) . '/%post_id%',
-       4 => $prefix . '/%postname%/',
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ 1 => $index_php_prefix . '/%year%/%monthnum%/%day%/%postname%/',
+       2 => $index_php_prefix . '/%year%/%monthnum%/%postname%/',
+       3 => $index_php_prefix . '/' . _x( 'archives', 'sample permalink base' ) . '/%post_id%',
+       4 => $index_php_prefix . '/%postname%/',
</ins><span class="cx" style="display: block; padding: 0 10px"> );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-$inputs = array(
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+$url_base = get_option( 'home' ) . $blog_prefix . $index_php_prefix;
+
+$default_structure_inputs = array(
</ins><span class="cx" style="display: block; padding: 0 10px">         0 => array(
</span><span class="cx" style="display: block; padding: 0 10px">                'id'      => 'plain',
</span><span class="cx" style="display: block; padding: 0 10px">                'label'   => __( 'Plain' ),
</span><span class="cx" style="display: block; padding: 0 10px">                'example' => get_option( 'home' ) . '/?p=123',
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                'value'   => $structures[0],
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         'value'   => $default_structures[0],
</ins><span class="cx" style="display: block; padding: 0 10px">         ),
</span><span class="cx" style="display: block; padding: 0 10px">        1 => array(
</span><span class="cx" style="display: block; padding: 0 10px">                'id'      => 'day-name',
</span><span class="cx" style="display: block; padding: 0 10px">                'label'   => __( 'Day and name' ),
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                'example' => get_option( 'home' ) . $blog_prefix . $prefix . '/' . gmdate( 'Y' ) . '/' . gmdate( 'm' ) . '/' . gmdate( 'd' ) . '/' . _x( 'sample-post', 'sample permalink structure' ) . '/',
-               'value'   => $structures[1],
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         'example' => $url_base . '/' . gmdate( 'Y/m/d' ) . '/' . _x( 'sample-post', 'sample permalink structure' ) . '/',
+               'value'   => $default_structures[1],
</ins><span class="cx" style="display: block; padding: 0 10px">         ),
</span><span class="cx" style="display: block; padding: 0 10px">        2 => array(
</span><span class="cx" style="display: block; padding: 0 10px">                'id'      => 'month-name',
</span><span class="cx" style="display: block; padding: 0 10px">                'label'   => __( 'Month and name' ),
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                'example' => get_option( 'home' ) . $blog_prefix . $prefix . '/' . gmdate( 'Y' ) . '/' . gmdate( 'm' ) . '/' . _x( 'sample-post', 'sample permalink structure' ) . '/',
-               'value'   => $structures[2],
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         'example' => $url_base . '/' . gmdate( 'Y/m' ) . '/' . _x( 'sample-post', 'sample permalink structure' ) . '/',
+               'value'   => $default_structures[2],
</ins><span class="cx" style="display: block; padding: 0 10px">         ),
</span><span class="cx" style="display: block; padding: 0 10px">        3 => array(
</span><span class="cx" style="display: block; padding: 0 10px">                'id'      => 'day-numeric',
</span><span class="cx" style="display: block; padding: 0 10px">                'label'   => __( 'Numeric' ),
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                'example' => get_option( 'home' ) . $blog_prefix . $prefix . '/' . _x( 'archives', 'sample permalink base' ) . '/123',
-               'value'   => $structures[3],
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         'example' => $url_base . '/' . _x( 'archives', 'sample permalink base' ) . '/123',
+               'value'   => $default_structures[3],
</ins><span class="cx" style="display: block; padding: 0 10px">         ),
</span><span class="cx" style="display: block; padding: 0 10px">        4 => array(
</span><span class="cx" style="display: block; padding: 0 10px">                'id'      => 'post-name',
</span><span class="cx" style="display: block; padding: 0 10px">                'label'   => __( 'Post name' ),
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                'example' => get_option( 'home' ) . $blog_prefix . $prefix . '/' . _x( 'sample-post', 'sample permalink structure' ) . '/',
-               'value'   => $structures[4],
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         'example' => $url_base . '/' . _x( 'sample-post', 'sample permalink structure' ) . '/',
+               'value'   => $default_structures[4],
</ins><span class="cx" style="display: block; padding: 0 10px">         ),
</span><span class="cx" style="display: block; padding: 0 10px"> );
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+$available_tags = array(
+       /* translators: %s: Permalink structure tag. */
+       'year'     => __( '%s (The year of the post, four digits, for example 2004.)' ),
+       /* translators: %s: Permalink structure tag. */
+       'monthnum' => __( '%s (Month of the year, for example 05.)' ),
+       /* translators: %s: Permalink structure tag. */
+       'day'      => __( '%s (Day of the month, for example 28.)' ),
+       /* translators: %s: Permalink structure tag. */
+       'hour'     => __( '%s (Hour of the day, for example 15.)' ),
+       /* translators: %s: Permalink structure tag. */
+       'minute'   => __( '%s (Minute of the hour, for example 43.)' ),
+       /* translators: %s: Permalink structure tag. */
+       'second'   => __( '%s (Second of the minute, for example 33.)' ),
+       /* translators: %s: Permalink structure tag. */
+       'post_id'  => __( '%s (The unique ID of the post, for example 423.)' ),
+       /* translators: %s: Permalink structure tag. */
+       'postname' => __( '%s (The sanitized post title (slug).)' ),
+       /* translators: %s: Permalink structure tag. */
+       'category' => __( '%s (Category slug. Nested sub-categories appear as nested directories in the URL.)' ),
+       /* translators: %s: Permalink structure tag. */
+       'author'   => __( '%s (A sanitized version of the author name.)' ),
+);
+
+/**
+ * Filters the list of available permalink structure tags on the Permalinks settings page.
+ *
+ * @since 4.9.0
+ *
+ * @param string[] $available_tags An array of key => value pairs of available permalink structure tags.
+ */
+$available_tags = apply_filters( 'available_permalink_structure_tags', $available_tags );
+
+/* translators: %s: Permalink structure tag. */
+$tag_added = __( '%s added to permalink structure' );
+
+/* translators: %s: Permalink structure tag. */
+$tag_already_used = __( '%s (already used in permalink structure)' );
</ins><span class="cx" style="display: block; padding: 0 10px"> ?>
</span><span class="cx" style="display: block; padding: 0 10px"> <h2 class="title"><?php _e( 'Common Settings' ); ?></h2>
</span><span class="cx" style="display: block; padding: 0 10px"> <table class="form-table permalink-structure" role="presentation">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-        <tbody>
-               <tr>
-                       <th scope="row"><?php _e( 'Permalink structure' ); ?></th>
-                       <td>
-                               <fieldset class="structure-selection">
-                                       <legend class="screen-reader-text"><?php _e( 'Permalink structure' ); ?></legend>
-                                       <?php
-                                       foreach ( $inputs as $structure_id => $structure_values ) {
-                                               $input_markup  = '<div class="row">';
-                                               $input_markup .= '<input id="permalink-input-' . $structure_values['id'] . '" name="selection" aria-describedby="permalink-' . $structure_values['id'] . '" type="radio" value="' . $structure_values['value'] . '" ' . checked( $structure_values['value'], $permalink_structure, false ) . ' />';
-                                               $input_markup .= '<div><label for="permalink-input-' . $structure_values['id'] . '">' . $structure_values['label'] . '</label>';
-                                               $input_markup .= '<p><code id="permalink-' . $structure_values['id'] . '">' . $structure_values['example'] . '</code></p>';
-                                               $input_markup .= '</div>';
-                                               $input_markup .= '</div>';
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+<tbody>
+<tr>
+       <th scope="row"><?php _e( 'Permalink structure' ); ?></th>
+       <td>
+               <fieldset class="structure-selection">
+                       <legend class="screen-reader-text"><?php _e( 'Permalink structure' ); ?></legend>
+                       <?php foreach ( $default_structure_inputs as $input ) : ?>
+                       <div class="row">
+                               <input id="permalink-input-<?php echo $input['id']; ?>"
+                                       name="selection" aria-describedby="permalink-<?php echo $input['id']; ?>"
+                                       type="radio" value="<?php echo esc_attr( $input['value'] ); ?>"
+                                       <?php checked( $input['value'], $permalink_structure ); ?>
+                               />
+                               <div>
+                                       <label for="permalink-input-<?php echo $input['id']; ?>"><?php echo $input['label']; ?></label>
+                                       <p>
+                                               <code id="permalink-<?php echo $input['id']; ?>"><?php echo $input['example']; ?></code>
+                                       </p>
+                               </div>
+                       </div><!-- .row -->
+                       <?php endforeach; ?>
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                                echo $input_markup;
-                                       }
-                                       ?>
-                                       <div class="row">
-                                               <input id="custom_selection" name="selection" type="radio" value="custom" <?php checked( ! in_array( $permalink_structure, $structures, true ) ); ?> /><div><label for="custom_selection"><?php _e( 'Custom Structure' ); ?></label>
-                                               <p><label for="permalink_structure" class="screen-reader-text"><?php _e( 'Customize permalink structure by selecting available tags' ); ?></label><span class="code"><code id="permalink-custom"><?php echo get_option( 'home' ) . $blog_prefix; ?></code><input name="permalink_structure" id="permalink_structure" type="text" value="<?php echo esc_attr( $permalink_structure ); ?>" aria-describedby="permalink-custom" class="regular-text code" /></span></p>
-                                                       <div class="available-structure-tags hide-if-no-js">
-                                                               <div id="custom_selection_updated" aria-live="assertive" class="screen-reader-text"></div>
-                                                               <?php
-                                                               $available_tags = array(
-                                                                       /* translators: %s: Permalink structure tag. */
-                                                                       'year'     => __( '%s (The year of the post, four digits, for example 2004.)' ),
-                                                                       /* translators: %s: Permalink structure tag. */
-                                                                       'monthnum' => __( '%s (Month of the year, for example 05.)' ),
-                                                                       /* translators: %s: Permalink structure tag. */
-                                                                       'day'      => __( '%s (Day of the month, for example 28.)' ),
-                                                                       /* translators: %s: Permalink structure tag. */
-                                                                       'hour'     => __( '%s (Hour of the day, for example 15.)' ),
-                                                                       /* translators: %s: Permalink structure tag. */
-                                                                       'minute'   => __( '%s (Minute of the hour, for example 43.)' ),
-                                                                       /* translators: %s: Permalink structure tag. */
-                                                                       'second'   => __( '%s (Second of the minute, for example 33.)' ),
-                                                                       /* translators: %s: Permalink structure tag. */
-                                                                       'post_id'  => __( '%s (The unique ID of the post, for example 423.)' ),
-                                                                       /* translators: %s: Permalink structure tag. */
-                                                                       'postname' => __( '%s (The sanitized post title (slug).)' ),
-                                                                       /* translators: %s: Permalink structure tag. */
-                                                                       'category' => __( '%s (Category slug. Nested sub-categories appear as nested directories in the URL.)' ),
-                                                                       /* translators: %s: Permalink structure tag. */
-                                                                       'author'   => __( '%s (A sanitized version of the author name.)' ),
-                                                               );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 <div class="row">
+                               <input id="custom_selection"
+                                       name="selection" type="radio" value="custom"
+                                       <?php checked( ! in_array( $permalink_structure, $default_structures, true ) ); ?>
+                               />
+                               <div>
+                                       <label for="custom_selection"><?php _e( 'Custom Structure' ); ?></label>
+                                       <p>
+                                               <label for="permalink_structure" class="screen-reader-text">
+                                                       <?php _e( 'Customize permalink structure by selecting available tags' ); ?>
+                                               </label>
+                                               <span class="code">
+                                                       <code id="permalink-custom"><?php echo $url_base; ?></code>
+                                                       <input name="permalink_structure" id="permalink_structure"
+                                                               type="text" value="<?php echo esc_attr( $permalink_structure ); ?>"
+                                                               aria-describedby="permalink-custom" class="regular-text code"
+                                                       />
+                                               </span>
+                                       </p>
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                                                /**
-                                                                * Filters the list of available permalink structure tags on the Permalinks settings page.
-                                                                *
-                                                                * @since 4.9.0
-                                                                *
-                                                                * @param string[] $available_tags An array of key => value pairs of available permalink structure tags.
-                                                                */
-                                                               $available_tags = apply_filters( 'available_permalink_structure_tags', $available_tags );
-
-                                                               /* translators: %s: Permalink structure tag. */
-                                                               $structure_tag_added = __( '%s added to permalink structure' );
-
-                                                               /* translators: %s: Permalink structure tag. */
-                                                               $structure_tag_already_used = __( '%s (already used in permalink structure)' );
-
-                                                               if ( ! empty( $available_tags ) ) :
-                                                                       ?>
-                                                                       <fieldset>
-                                                                               <legend><?php _e( 'Available tags:' ); ?></legend>
-                                                                               <ul role="list">
-                                                                                       <?php foreach ( $available_tags as $tag => $explanation ) : ?>
-                                                                                               <li>
-                                                                                                       <button type="button"
-                                                                                                                       class="button button-secondary"
-                                                                                                                       aria-label="<?php echo esc_attr( sprintf( $explanation, $tag ) ); ?>"
-                                                                                                                       data-added="<?php echo esc_attr( sprintf( $structure_tag_added, $tag ) ); ?>"
-                                                                                                                       data-used="<?php echo esc_attr( sprintf( $structure_tag_already_used, $tag ) ); ?>">
-                                                                                                               <?php echo '%' . $tag . '%'; ?>
-                                                                                                       </button>
-                                                                                               </li>
-                                                                                       <?php endforeach; ?>
-                                                                               </ul>
-                                                                       </fieldset>
-                                                               <?php endif; ?>
-                                                       </div>
-                                               </div>
-                                       </div>
-                               </fieldset>
-                       </td>
-               </tr>
-       </tbody>
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                 <div class="available-structure-tags hide-if-no-js">
+                                               <div id="custom_selection_updated" aria-live="assertive" class="screen-reader-text"></div>
+                                               <?php if ( ! empty( $available_tags ) ) : ?>
+                                               <fieldset>
+                                                       <legend><?php _e( 'Available tags:' ); ?></legend>
+                                                       <ul role="list">
+                                                       <?php foreach ( $available_tags as $tag => $explanation ) : ?>
+                                                               <li>
+                                                                       <button type="button"
+                                                                               class="button button-secondary"
+                                                                               aria-label="<?php echo esc_attr( sprintf( $explanation, $tag ) ); ?>"
+                                                                               data-added="<?php echo esc_attr( sprintf( $tag_added, $tag ) ); ?>"
+                                                                               data-used="<?php echo esc_attr( sprintf( $tag_already_used, $tag ) ); ?>">
+                                                                               <?php echo '%' . $tag . '%'; ?>
+                                                                       </button>
+                                                               </li>
+                                                       <?php endforeach; ?>
+                                                       </ul>
+                                               </fieldset>
+                                               <?php endif; ?>
+                                       </div><!-- .available-structure-tags -->
+                               </div>
+                       </div><!-- .row -->
+               </fieldset><!-- .structure-selection -->
+       </td>
+</tr>
+</tbody>
</ins><span class="cx" style="display: block; padding: 0 10px"> </table>
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px"> <h2 class="title"><?php _e( 'Optional' ); ?></h2>
</span><span class="cx" style="display: block; padding: 0 10px"> <p>
</span><span class="cx" style="display: block; padding: 0 10px"> <?php
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-/* translators: %s: Placeholder that must come at the start of the URL. */
-printf( __( 'If you like, you may enter custom structures for your category and tag URLs here. For example, using <code>topics</code> as your category base would make your category links like <code>%s/topics/uncategorized/</code>. If you leave these blank the defaults will be used.' ), get_option( 'home' ) . $blog_prefix . $prefix );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+printf(
+       /* translators: %s: Placeholder that must come at the start of the URL. */
+       __( 'If you like, you may enter custom structures for your category and tag URLs here. For example, using <code>topics</code> as your category base would make your category links like <code>%s/topics/uncategorized/</code>. If you leave these blank the defaults will be used.' ),
+       $url_base
+);
</ins><span class="cx" style="display: block; padding: 0 10px"> ?>
</span><span class="cx" style="display: block; padding: 0 10px"> </p>
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px"> <table class="form-table" role="presentation">
</span><span class="cx" style="display: block; padding: 0 10px">        <tr>
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                <th><label for="category_base"><?php /* translators: Prefix for category permalinks. */ _e( 'Category base' ); ?></label></th>
-               <td><?php echo $blog_prefix; ?> <input name="category_base" id="category_base" type="text" value="<?php echo esc_attr( $category_base ); ?>" class="regular-text code" /></td>
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         <th>
+                       <label for="category_base">
+                               <?php /* translators: Prefix for category permalinks. */ _e( 'Category base' ); ?>
+                       </label>
+               </th>
+               <td>
+                       <?php echo $blog_prefix; ?>
+                       <input name="category_base" id="category_base" type="text"
+                               value="<?php echo esc_attr( $category_base ); ?>" class="regular-text code"
+                       />
+               </td>
</ins><span class="cx" style="display: block; padding: 0 10px">         </tr>
</span><span class="cx" style="display: block; padding: 0 10px">        <tr>
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                <th><label for="tag_base"><?php _e( 'Tag base' ); ?></label></th>
-               <td><?php echo $blog_prefix; ?> <input name="tag_base" id="tag_base" type="text" value="<?php echo esc_attr( $tag_base ); ?>" class="regular-text code" /></td>
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         <th>
+                       <label for="tag_base"><?php _e( 'Tag base' ); ?></label>
+               </th>
+               <td>
+                       <?php echo $blog_prefix; ?>
+                       <input name="tag_base" id="tag_base" type="text"
+                               value="<?php echo esc_attr( $tag_base ); ?>" class="regular-text code"
+                       />
+               </td>
</ins><span class="cx" style="display: block; padding: 0 10px">         </tr>
</span><span class="cx" style="display: block; padding: 0 10px">        <?php do_settings_fields( 'permalink', 'optional' ); ?>
</span><span class="cx" style="display: block; padding: 0 10px"> </table>
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -385,13 +435,14 @@
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px"> <?php submit_button(); ?>
</span><span class="cx" style="display: block; padding: 0 10px"> </form>
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-<?php if ( ! is_multisite() ) { ?>
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+<?php if ( ! is_multisite() ) : ?>
</ins><span class="cx" style="display: block; padding: 0 10px">         <?php
</span><span class="cx" style="display: block; padding: 0 10px">        if ( $iis7_permalinks ) :
</span><span class="cx" style="display: block; padding: 0 10px">                if ( isset( $_POST['submit'] ) && $permalink_structure && ! $using_index_permalinks && ! $writable ) :
</span><span class="cx" style="display: block; padding: 0 10px">                        if ( file_exists( $home_path . 'web.config' ) ) :
</span><span class="cx" style="display: block; padding: 0 10px">                                ?>
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-<p id="iis-description-a">
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         <p id="iis-description-a">
</ins><span class="cx" style="display: block; padding: 0 10px">                                 <?php
</span><span class="cx" style="display: block; padding: 0 10px">                                printf(
</span><span class="cx" style="display: block; padding: 0 10px">                                        /* translators: 1: web.config, 2: Documentation URL, 3: Ctrl + A, 4: ⌘ + A, 5: Element code. */
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -403,12 +454,18 @@
</span><span class="cx" style="display: block; padding: 0 10px">                                        '<code>/&lt;configuration&gt;/&lt;system.webServer&gt;/&lt;rewrite&gt;/&lt;rules&gt;</code>'
</span><span class="cx" style="display: block; padding: 0 10px">                                );
</span><span class="cx" style="display: block; padding: 0 10px">                                ?>
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-</p>
-<form action="options-permalink.php" method="post">
-                               <?php wp_nonce_field( 'update-permalink' ); ?>
-       <p><label for="rules"><?php _e( 'Rewrite rules:' ); ?></label><br /><textarea rows="9" class="large-text readonly" name="rules" id="rules" readonly="readonly" aria-describedby="iis-description-a"><?php echo esc_textarea( $wp_rewrite->iis7_url_rewrite_rules() ); ?></textarea></p>
-</form>
-<p>
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         </p>
+                               <form action="options-permalink.php" method="post">
+                                       <?php wp_nonce_field( 'update-permalink' ); ?>
+                                       <p>
+                                               <label for="rules"><?php _e( 'Rewrite rules:' ); ?></label><br />
+                                               <textarea rows="9" class="large-text readonly"
+                                                       name="rules" id="rules" readonly="readonly"
+                                                       aria-describedby="iis-description-a"
+                                               ><?php echo esc_textarea( $wp_rewrite->iis7_url_rewrite_rules() ); ?></textarea>
+                                       </p>
+                               </form>
+                               <p>
</ins><span class="cx" style="display: block; padding: 0 10px">                                 <?php
</span><span class="cx" style="display: block; padding: 0 10px">                                printf(
</span><span class="cx" style="display: block; padding: 0 10px">                                        /* translators: %s: web.config */
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -416,59 +473,69 @@
</span><span class="cx" style="display: block; padding: 0 10px">                                        '<code>web.config</code>'
</span><span class="cx" style="display: block; padding: 0 10px">                                );
</span><span class="cx" style="display: block; padding: 0 10px">                                ?>
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-</p>
-               <?php else : ?>
-<p id="iis-description-b">
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         </p>
+                       <?php else : ?>
+                               <p id="iis-description-b">
+                               <?php
+                               printf(
+                                       /* translators: 1: Documentation URL, 2: web.config, 3: Ctrl + A, 4: ⌘ + A */
+                                       __( '<strong>Error:</strong> The root directory of your site is not <a href="%1$s">writable</a>, so creating a file automatically was not possible. This is the URL rewrite rule you should have in your %2$s file. Create a new file called %2$s in the root directory of your site. Click in the field and press %3$s (or %4$s on Mac) to select all. Then insert this code into the %2$s file.' ),
+                                       __( 'https://wordpress.org/support/article/changing-file-permissions/' ),
+                                       '<code>web.config</code>',
+                                       '<kbd>Ctrl + A</kbd>',
+                                       '<kbd>⌘ + A</kbd>'
+                               );
+                               ?>
+                               </p>
+                               <form action="options-permalink.php" method="post">
+                                       <?php wp_nonce_field( 'update-permalink' ); ?>
+                                       <p>
+                                               <label for="rules"><?php _e( 'Rewrite rules:' ); ?></label><br />
+                                               <textarea rows="18" class="large-text readonly"
+                                                       name="rules" id="rules" readonly="readonly"
+                                                       aria-describedby="iis-description-b"
+                                               ><?php echo esc_textarea( $wp_rewrite->iis7_url_rewrite_rules( true ) ); ?></textarea>
+                                       </p>
+                               </form>
+                               <p>
+                               <?php
+                               printf(
+                                       /* translators: %s: web.config */
+                                       __( 'If you temporarily make your site&#8217;s root directory writable to generate the %s file automatically, do not forget to revert the permissions after the file has been created.' ),
+                                       '<code>web.config</code>'
+                               );
+                               ?>
+                               </p>
+                       <?php endif; // End if 'web.config' exists. ?>
+               <?php endif; // End if $_POST['submit'] && ! $writable. ?>
+       <?php else : ?>
+               <?php if ( $permalink_structure && ! $using_index_permalinks && ! $writable && $htaccess_update_required ) : ?>
+                       <p id="htaccess-description">
</ins><span class="cx" style="display: block; padding: 0 10px">                         <?php
</span><span class="cx" style="display: block; padding: 0 10px">                        printf(
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                /* translators: 1: Documentation URL, 2: web.config, 3: Ctrl + A, 4: ⌘ + A */
-                               __( '<strong>Error:</strong> The root directory of your site is not <a href="%1$s">writable</a>, so creating a file automatically was not possible. This is the URL rewrite rule you should have in your %2$s file. Create a new file called %2$s in the root directory of your site. Click in the field and press %3$s (or %4$s on Mac) to select all. Then insert this code into the %2$s file.' ),
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         /* translators: 1: .htaccess, 2: Documentation URL, 3: Ctrl + A, 4: ⌘ + A */
+                               __( '<strong>Error:</strong> Your %1$s file is not <a href="%2$s">writable</a>, so updating it automatically was not possible. These are the mod_rewrite rules you should have in your %1$s file. Click in the field and press %3$s (or %4$s on Mac) to select all.' ),
+                               '<code>.htaccess</code>',
</ins><span class="cx" style="display: block; padding: 0 10px">                                 __( 'https://wordpress.org/support/article/changing-file-permissions/' ),
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                '<code>web.config</code>',
</del><span class="cx" style="display: block; padding: 0 10px">                                 '<kbd>Ctrl + A</kbd>',
</span><span class="cx" style="display: block; padding: 0 10px">                                '<kbd>⌘ + A</kbd>'
</span><span class="cx" style="display: block; padding: 0 10px">                        );
</span><span class="cx" style="display: block; padding: 0 10px">                        ?>
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-</p>
-<form action="options-permalink.php" method="post">
-                       <?php wp_nonce_field( 'update-permalink' ); ?>
-       <p><label for="rules"><?php _e( 'Rewrite rules:' ); ?></label><br /><textarea rows="18" class="large-text readonly" name="rules" id="rules" readonly="readonly" aria-describedby="iis-description-b"><?php echo esc_textarea( $wp_rewrite->iis7_url_rewrite_rules( true ) ); ?></textarea></p>
-</form>
-<p>
-                       <?php
-                       printf(
-                               /* translators: %s: web.config */
-                               __( 'If you temporarily make your site&#8217;s root directory writable to generate the %s file automatically, do not forget to revert the permissions after the file has been created.' ),
-                               '<code>web.config</code>'
-                       );
-                       ?>
-</p>
-               <?php endif; ?>
-       <?php endif; ?>
-               <?php
-else :
-       if ( $permalink_structure && ! $using_index_permalinks && ! $writable && $htaccess_update_required ) :
-               ?>
-<p id="htaccess-description">
-               <?php
-               printf(
-                       /* translators: 1: .htaccess, 2: Documentation URL, 3: Ctrl + A, 4: ⌘ + A */
-                       __( '<strong>Error:</strong> Your %1$s file is not <a href="%2$s">writable</a>, so updating it automatically was not possible. These are the mod_rewrite rules you should have in your %1$s file. Click in the field and press %3$s (or %4$s on Mac) to select all.' ),
-                       '<code>.htaccess</code>',
-                       __( 'https://wordpress.org/support/article/changing-file-permissions/' ),
-                       '<kbd>Ctrl + A</kbd>',
-                       '<kbd>⌘ + A</kbd>'
-               );
-               ?>
-</p>
-<form action="options-permalink.php" method="post">
-               <?php wp_nonce_field( 'update-permalink' ); ?>
-       <p><label for="rules"><?php _e( 'Rewrite rules:' ); ?></label><br /><textarea rows="8" class="large-text readonly" name="rules" id="rules" readonly="readonly" aria-describedby="htaccess-description"><?php echo esc_textarea( $wp_rewrite->mod_rewrite_rules() ); ?></textarea></p>
-</form>
-       <?php endif; ?>
-<?php endif; ?>
-<?php } // End if ! is_multisite(). ?>
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 </p>
+                       <form action="options-permalink.php" method="post">
+                               <?php wp_nonce_field( 'update-permalink' ); ?>
+                               <p>
+                                       <label for="rules"><?php _e( 'Rewrite rules:' ); ?></label><br />
+                                       <textarea rows="8" class="large-text readonly"
+                                               name="rules" id="rules" readonly="readonly"
+                                               aria-describedby="htaccess-description"
+                                       ><?php echo esc_textarea( $wp_rewrite->mod_rewrite_rules() ); ?></textarea>
+                               </p>
+                       </form>
+               <?php endif; // End if ! $writable && $htaccess_update_required. ?>
+       <?php endif; // End if $iis7_permalinks. ?>
+<?php endif; // End if ! is_multisite(). ?>
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-</div>
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+</div><!-- .wrap -->
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px"> <?php require_once ABSPATH . 'wp-admin/admin-footer.php'; ?>
</span></span></pre>
</div>
</div>

</body>
</html>