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Ticket #44269: general-template.php

File general-template.php, 135.8 KB (added by andrepoandrade, 6 years ago)
File general-template.php with modified paginate_links function

Line
1	<?php
2	/**
3	* General template tags that can go anywhere in a template.
4	*
5	* @package WordPress
6	* @subpackage Template
7	*/
8
9	/**
10	* Load header template.
11	*
12	* Includes the header template for a theme or if a name is specified then a
13	* specialised header will be included.
14	*
15	* For the parameter, if the file is called "header-special.php" then specify
16	* "special".
17	*
18	* @since 1.5.0
19	*
20	* @param string $name The name of the specialised header.
21	*/
22	function get_header( $name = null ) {
23	/**
24	* Fires before the header template file is loaded.
25	*
26	* @since 2.1.0
27	* @since 2.8.0 $name parameter added.
28	*
29	* @param string\|null $name Name of the specific header file to use. null for the default header.
30	*/
31	do_action( 'get_header', $name );
32
33	$templates = array();
34	$name = (string) $name;
35	if ( '' !== $name ) {
36	$templates[] = "header-{$name}.php";
37	}
38
39	$templates[] = 'header.php';
40
41	locate_template( $templates, true );
42	}
43
44	/**
45	* Load footer template.
46	*
47	* Includes the footer template for a theme or if a name is specified then a
48	* specialised footer will be included.
49	*
50	* For the parameter, if the file is called "footer-special.php" then specify
51	* "special".
52	*
53	* @since 1.5.0
54	*
55	* @param string $name The name of the specialised footer.
56	*/
57	function get_footer( $name = null ) {
58	/**
59	* Fires before the footer template file is loaded.
60	*
61	* @since 2.1.0
62	* @since 2.8.0 $name parameter added.
63	*
64	* @param string\|null $name Name of the specific footer file to use. null for the default footer.
65	*/
66	do_action( 'get_footer', $name );
67
68	$templates = array();
69	$name = (string) $name;
70	if ( '' !== $name ) {
71	$templates[] = "footer-{$name}.php";
72	}
73
74	$templates[] = 'footer.php';
75
76	locate_template( $templates, true );
77	}
78
79	/**
80	* Load sidebar template.
81	*
82	* Includes the sidebar template for a theme or if a name is specified then a
83	* specialised sidebar will be included.
84	*
85	* For the parameter, if the file is called "sidebar-special.php" then specify
86	* "special".
87	*
88	* @since 1.5.0
89	*
90	* @param string $name The name of the specialised sidebar.
91	*/
92	function get_sidebar( $name = null ) {
93	/**
94	* Fires before the sidebar template file is loaded.
95	*
96	* @since 2.2.0
97	* @since 2.8.0 $name parameter added.
98	*
99	* @param string\|null $name Name of the specific sidebar file to use. null for the default sidebar.
100	*/
101	do_action( 'get_sidebar', $name );
102
103	$templates = array();
104	$name = (string) $name;
105	if ( '' !== $name )
106	$templates[] = "sidebar-{$name}.php";
107
108	$templates[] = 'sidebar.php';
109
110	locate_template( $templates, true );
111	}
112
113	/**
114	* Loads a template part into a template.
115	*
116	* Provides a simple mechanism for child themes to overload reusable sections of code
117	* in the theme.
118	*
119	* Includes the named template part for a theme or if a name is specified then a
120	* specialised part will be included. If the theme contains no {slug}.php file
121	* then no template will be included.
122	*
123	* The template is included using require, not require_once, so you may include the
124	* same template part multiple times.
125	*
126	* For the $name parameter, if the file is called "{slug}-special.php" then specify
127	* "special".
128	*
129	* @since 3.0.0
130	*
131	* @param string $slug The slug name for the generic template.
132	* @param string $name The name of the specialised template.
133	*/
134	function get_template_part( $slug, $name = null ) {
135	/**
136	* Fires before the specified template part file is loaded.
137	*
138	* The dynamic portion of the hook name, `$slug`, refers to the slug name
139	* for the generic template part.
140	*
141	* @since 3.0.0
142	*
143	* @param string $slug The slug name for the generic template.
144	* @param string\|null $name The name of the specialized template.
145	*/
146	do_action( "get_template_part_{$slug}", $slug, $name );
147
148	$templates = array();
149	$name = (string) $name;
150	if ( '' !== $name )
151	$templates[] = "{$slug}-{$name}.php";
152
153	$templates[] = "{$slug}.php";
154
155	locate_template($templates, true, false);
156	}
157
158	/**
159	* Display search form.
160	*
161	* Will first attempt to locate the searchform.php file in either the child or
162	* the parent, then load it. If it doesn't exist, then the default search form
163	* will be displayed. The default search form is HTML, which will be displayed.
164	* There is a filter applied to the search form HTML in order to edit or replace
165	* it. The filter is {@see 'get_search_form'}.
166	*
167	* This function is primarily used by themes which want to hardcode the search
168	* form into the sidebar and also by the search widget in WordPress.
169	*
170	* There is also an action that is called whenever the function is run called,
171	* {@see 'pre_get_search_form'}. This can be useful for outputting JavaScript that the
172	* search relies on or various formatting that applies to the beginning of the
173	* search. To give a few examples of what it can be used for.
174	*
175	* @since 2.7.0
176	*
177	* @param bool $echo Default to echo and not return the form.
178	* @return string\|void String when $echo is false.
179	*/
180	function get_search_form( $echo = true ) {
181	/**
182	* Fires before the search form is retrieved, at the start of get_search_form().
183	*
184	* @since 2.7.0 as 'get_search_form' action.
185	* @since 3.6.0
186	*
187	* @link https://core.trac.wordpress.org/ticket/19321
188	*/
189	do_action( 'pre_get_search_form' );
190
191	$format = current_theme_supports( 'html5', 'search-form' ) ? 'html5' : 'xhtml';
192
193	/**
194	* Filters the HTML format of the search form.
195	*
196	* @since 3.6.0
197	*
198	* @param string $format The type of markup to use in the search form.
199	* Accepts 'html5', 'xhtml'.
200	*/
201	$format = apply_filters( 'search_form_format', $format );
202
203	$search_form_template = locate_template( 'searchform.php' );
204	if ( '' != $search_form_template ) {
205	ob_start();
206	require( $search_form_template );
207	$form = ob_get_clean();
208	} else {
209	if ( 'html5' == $format ) {
210	$form = '<form role="search" method="get" class="search-form" action="' . esc_url( home_url( '/' ) ) . '">
211	<label>
212	<span class="screen-reader-text">' . _x( 'Search for:', 'label' ) . '</span>
213	<input type="search" class="search-field" placeholder="' . esc_attr_x( 'Search …', 'placeholder' ) . '" value="' . get_search_query() . '" name="s" />
214	</label>
215	<input type="submit" class="search-submit" value="'. esc_attr_x( 'Search', 'submit button' ) .'" />
216	</form>';
217	} else {
218	$form = '<form role="search" method="get" id="searchform" class="searchform" action="' . esc_url( home_url( '/' ) ) . '">
219	<div>
220	<label class="screen-reader-text" for="s">' . _x( 'Search for:', 'label' ) . '</label>
221	<input type="text" value="' . get_search_query() . '" name="s" id="s" />
222	<input type="submit" id="searchsubmit" value="'. esc_attr_x( 'Search', 'submit button' ) .'" />
223	</div>
224	</form>';
225	}
226	}
227
228	/**
229	* Filters the HTML output of the search form.
230	*
231	* @since 2.7.0
232	*
233	* @param string $form The search form HTML output.
234	*/
235	$result = apply_filters( 'get_search_form', $form );
236
237	if ( null === $result )
238	$result = $form;
239
240	if ( $echo )
241	echo $result;
242	else
243	return $result;
244	}
245
246	/**
247	* Display the Log In/Out link.
248	*
249	* Displays a link, which allows users to navigate to the Log In page to log in
250	* or log out depending on whether they are currently logged in.
251	*
252	* @since 1.5.0
253	*
254	* @param string $redirect Optional path to redirect to on login/logout.
255	* @param bool $echo Default to echo and not return the link.
256	* @return string\|void String when retrieving.
257	*/
258	function wp_loginout($redirect = '', $echo = true) {
259	if ( ! is_user_logged_in() )
260	$link = '<a href="' . esc_url( wp_login_url($redirect) ) . '">' . __('Log in') . '</a>';
261	else
262	$link = '<a href="' . esc_url( wp_logout_url($redirect) ) . '">' . __('Log out') . '</a>';
263
264	if ( $echo ) {
265	/**
266	* Filters the HTML output for the Log In/Log Out link.
267	*
268	* @since 1.5.0
269	*
270	* @param string $link The HTML link content.
271	*/
272	echo apply_filters( 'loginout', $link );
273	} else {
274	/** This filter is documented in wp-includes/general-template.php */
275	return apply_filters( 'loginout', $link );
276	}
277	}
278
279	/**
280	* Retrieves the logout URL.
281	*
282	* Returns the URL that allows the user to log out of the site.
283	*
284	* @since 2.7.0
285	*
286	* @param string $redirect Path to redirect to on logout.
287	* @return string The logout URL. Note: HTML-encoded via esc_html() in wp_nonce_url().
288	*/
289	function wp_logout_url($redirect = '') {
290	$args = array( 'action' => 'logout' );
291	if ( !empty($redirect) ) {
292	$args['redirect_to'] = urlencode( $redirect );
293	}
294
295	$logout_url = add_query_arg($args, site_url('wp-login.php', 'login'));
296	$logout_url = wp_nonce_url( $logout_url, 'log-out' );
297
298	/**
299	* Filters the logout URL.
300	*
301	* @since 2.8.0
302	*
303	* @param string $logout_url The HTML-encoded logout URL.
304	* @param string $redirect Path to redirect to on logout.
305	*/
306	return apply_filters( 'logout_url', $logout_url, $redirect );
307	}
308
309	/**
310	* Retrieves the login URL.
311	*
312	* @since 2.7.0
313	*
314	* @param string $redirect Path to redirect to on log in.
315	* @param bool $force_reauth Whether to force reauthorization, even if a cookie is present.
316	* Default false.
317	* @return string The login URL. Not HTML-encoded.
318	*/
319	function wp_login_url($redirect = '', $force_reauth = false) {
320	$login_url = site_url('wp-login.php', 'login');
321
322	if ( !empty($redirect) )
323	$login_url = add_query_arg('redirect_to', urlencode($redirect), $login_url);
324
325	if ( $force_reauth )
326	$login_url = add_query_arg('reauth', '1', $login_url);
327
328	/**
329	* Filters the login URL.
330	*
331	* @since 2.8.0
332	* @since 4.2.0 The `$force_reauth` parameter was added.
333	*
334	* @param string $login_url The login URL. Not HTML-encoded.
335	* @param string $redirect The path to redirect to on login, if supplied.
336	* @param bool $force_reauth Whether to force reauthorization, even if a cookie is present.
337	*/
338	return apply_filters( 'login_url', $login_url, $redirect, $force_reauth );
339	}
340
341	/**
342	* Returns the URL that allows the user to register on the site.
343	*
344	* @since 3.6.0
345	*
346	* @return string User registration URL.
347	*/
348	function wp_registration_url() {
349	/**
350	* Filters the user registration URL.
351	*
352	* @since 3.6.0
353	*
354	* @param string $register The user registration URL.
355	*/
356	return apply_filters( 'register_url', site_url( 'wp-login.php?action=register', 'login' ) );
357	}
358
359	/**
360	* Provides a simple login form for use anywhere within WordPress.
361	*
362	* The login format HTML is echoed by default. Pass a false value for `$echo` to return it instead.
363	*
364	* @since 3.0.0
365	*
366	* @param array $args {
367	* Optional. Array of options to control the form output. Default empty array.
368	*
369	* @type bool $echo Whether to display the login form or return the form HTML code.
370	* Default true (echo).
371	* @type string $redirect URL to redirect to. Must be absolute, as in "https://example.com/mypage/".
372	* Default is to redirect back to the request URI.
373	* @type string $form_id ID attribute value for the form. Default 'loginform'.
374	* @type string $label_username Label for the username or email address field. Default 'Username or Email Address'.
375	* @type string $label_password Label for the password field. Default 'Password'.
376	* @type string $label_remember Label for the remember field. Default 'Remember Me'.
377	* @type string $label_log_in Label for the submit button. Default 'Log In'.
378	* @type string $id_username ID attribute value for the username field. Default 'user_login'.
379	* @type string $id_password ID attribute value for the password field. Default 'user_pass'.
380	* @type string $id_remember ID attribute value for the remember field. Default 'rememberme'.
381	* @type string $id_submit ID attribute value for the submit button. Default 'wp-submit'.
382	* @type bool $remember Whether to display the "rememberme" checkbox in the form.
383	* @type string $value_username Default value for the username field. Default empty.
384	* @type bool $value_remember Whether the "Remember Me" checkbox should be checked by default.
385	* Default false (unchecked).
386	*
387	* }
388	* @return string\|void String when retrieving.
389	*/
390	function wp_login_form( $args = array() ) {
391	$defaults = array(
392	'echo' => true,
393	// Default 'redirect' value takes the user back to the request URI.
394	'redirect' => ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'],
395	'form_id' => 'loginform',
396	'label_username' => __( 'Username or Email Address' ),
397	'label_password' => __( 'Password' ),
398	'label_remember' => __( 'Remember Me' ),
399	'label_log_in' => __( 'Log In' ),
400	'id_username' => 'user_login',
401	'id_password' => 'user_pass',
402	'id_remember' => 'rememberme',
403	'id_submit' => 'wp-submit',
404	'remember' => true,
405	'value_username' => '',
406	// Set 'value_remember' to true to default the "Remember me" checkbox to checked.
407	'value_remember' => false,
408	);
409
410	/**
411	* Filters the default login form output arguments.
412	*
413	* @since 3.0.0
414	*
415	* @see wp_login_form()
416	*
417	* @param array $defaults An array of default login form arguments.
418	*/
419	$args = wp_parse_args( $args, apply_filters( 'login_form_defaults', $defaults ) );
420
421	/**
422	* Filters content to display at the top of the login form.
423	*
424	* The filter evaluates just following the opening form tag element.
425	*
426	* @since 3.0.0
427	*
428	* @param string $content Content to display. Default empty.
429	* @param array $args Array of login form arguments.
430	*/
431	$login_form_top = apply_filters( 'login_form_top', '', $args );
432
433	/**
434	* Filters content to display in the middle of the login form.
435	*
436	* The filter evaluates just following the location where the 'login-password'
437	* field is displayed.
438	*
439	* @since 3.0.0
440	*
441	* @param string $content Content to display. Default empty.
442	* @param array $args Array of login form arguments.
443	*/
444	$login_form_middle = apply_filters( 'login_form_middle', '', $args );
445
446	/**
447	* Filters content to display at the bottom of the login form.
448	*
449	* The filter evaluates just preceding the closing form tag element.
450	*
451	* @since 3.0.0
452	*
453	* @param string $content Content to display. Default empty.
454	* @param array $args Array of login form arguments.
455	*/
456	$login_form_bottom = apply_filters( 'login_form_bottom', '', $args );
457
458	$form = '
459	<form name="' . $args['form_id'] . '" id="' . $args['form_id'] . '" action="' . esc_url( site_url( 'wp-login.php', 'login_post' ) ) . '" method="post">
460	' . $login_form_top . '
461	<p class="login-username">
462	<label for="' . esc_attr( $args['id_username'] ) . '">' . esc_html( $args['label_username'] ) . '</label>
463	<input type="text" name="log" id="' . esc_attr( $args['id_username'] ) . '" class="input" value="' . esc_attr( $args['value_username'] ) . '" size="20" />
464	</p>
465	<p class="login-password">
466	<label for="' . esc_attr( $args['id_password'] ) . '">' . esc_html( $args['label_password'] ) . '</label>
467	<input type="password" name="pwd" id="' . esc_attr( $args['id_password'] ) . '" class="input" value="" size="20" />
468	</p>
469	' . $login_form_middle . '
470	' . ( $args['remember'] ? '<p class="login-remember"><label><input name="rememberme" type="checkbox" id="' . esc_attr( $args['id_remember'] ) . '" value="forever"' . ( $args['value_remember'] ? ' checked="checked"' : '' ) . ' /> ' . esc_html( $args['label_remember'] ) . '</label></p>' : '' ) . '
471	<p class="login-submit">
472	<input type="submit" name="wp-submit" id="' . esc_attr( $args['id_submit'] ) . '" class="button button-primary" value="' . esc_attr( $args['label_log_in'] ) . '" />
473	<input type="hidden" name="redirect_to" value="' . esc_url( $args['redirect'] ) . '" />
474	</p>
475	' . $login_form_bottom . '
476	</form>';
477
478	if ( $args['echo'] )
479	echo $form;
480	else
481	return $form;
482	}
483
484	/**
485	* Returns the URL that allows the user to retrieve the lost password
486	*
487	* @since 2.8.0
488	*
489	* @param string $redirect Path to redirect to on login.
490	* @return string Lost password URL.
491	*/
492	function wp_lostpassword_url( $redirect = '' ) {
493	$args = array( 'action' => 'lostpassword' );
494	if ( !empty($redirect) ) {
495	$args['redirect_to'] = urlencode( $redirect );
496	}
497
498	$lostpassword_url = add_query_arg( $args, network_site_url('wp-login.php', 'login') );
499
500	/**
501	* Filters the Lost Password URL.
502	*
503	* @since 2.8.0
504	*
505	* @param string $lostpassword_url The lost password page URL.
506	* @param string $redirect The path to redirect to on login.
507	*/
508	return apply_filters( 'lostpassword_url', $lostpassword_url, $redirect );
509	}
510
511	/**
512	* Display the Registration or Admin link.
513	*
514	* Display a link which allows the user to navigate to the registration page if
515	* not logged in and registration is enabled or to the dashboard if logged in.
516	*
517	* @since 1.5.0
518	*
519	* @param string $before Text to output before the link. Default `<li>`.
520	* @param string $after Text to output after the link. Default `</li>`.
521	* @param bool $echo Default to echo and not return the link.
522	* @return string\|void String when retrieving.
523	*/
524	function wp_register( $before = '<li>', $after = '</li>', $echo = true ) {
525	if ( ! is_user_logged_in() ) {
526	if ( get_option('users_can_register') )
527	$link = $before . '<a href="' . esc_url( wp_registration_url() ) . '">' . __('Register') . '</a>' . $after;
528	else
529	$link = '';
530	} elseif ( current_user_can( 'read' ) ) {
531	$link = $before . '<a href="' . admin_url() . '">' . __('Site Admin') . '</a>' . $after;
532	} else {
533	$link = '';
534	}
535
536	/**
537	* Filters the HTML link to the Registration or Admin page.
538	*
539	* Users are sent to the admin page if logged-in, or the registration page
540	* if enabled and logged-out.
541	*
542	* @since 1.5.0
543	*
544	* @param string $link The HTML code for the link to the Registration or Admin page.
545	*/
546	$link = apply_filters( 'register', $link );
547
548	if ( $echo ) {
549	echo $link;
550	} else {
551	return $link;
552	}
553	}
554
555	/**
556	* Theme container function for the 'wp_meta' action.
557	*
558	* The {@see 'wp_meta'} action can have several purposes, depending on how you use it,
559	* but one purpose might have been to allow for theme switching.
560	*
561	* @since 1.5.0
562	*
563	* @link https://core.trac.wordpress.org/ticket/1458 Explanation of 'wp_meta' action.
564	*/
565	function wp_meta() {
566	/**
567	* Fires before displaying echoed content in the sidebar.
568	*
569	* @since 1.5.0
570	*/
571	do_action( 'wp_meta' );
572	}
573
574	/**
575	* Displays information about the current site.
576	*
577	* @since 0.71
578	*
579	* @see get_bloginfo() For possible `$show` values
580	*
581	* @param string $show Optional. Site information to display. Default empty.
582	*/
583	function bloginfo( $show = '' ) {
584	echo get_bloginfo( $show, 'display' );
585	}
586
587	/**
588	* Retrieves information about the current site.
589	*
590	* Possible values for `$show` include:
591	*
592	* - 'name' - Site title (set in Settings > General)
593	* - 'description' - Site tagline (set in Settings > General)
594	* - 'wpurl' - The WordPress address (URL) (set in Settings > General)
595	* - 'url' - The Site address (URL) (set in Settings > General)
596	* - 'admin_email' - Admin email (set in Settings > General)
597	* - 'charset' - The "Encoding for pages and feeds" (set in Settings > Reading)
598	* - 'version' - The current WordPress version
599	* - 'html_type' - The content-type (default: "text/html"). Themes and plugins
600	* can override the default value using the {@see 'pre_option_html_type'} filter
601	* - 'text_direction' - The text direction determined by the site's language. is_rtl()
602	* should be used instead
603	* - 'language' - Language code for the current site
604	* - 'stylesheet_url' - URL to the stylesheet for the active theme. An active child theme
605	* will take precedence over this value
606	* - 'stylesheet_directory' - Directory path for the active theme. An active child theme
607	* will take precedence over this value
608	* - 'template_url' / 'template_directory' - URL of the active theme's directory. An active
609	* child theme will NOT take precedence over this value
610	* - 'pingback_url' - The pingback XML-RPC file URL (xmlrpc.php)
611	* - 'atom_url' - The Atom feed URL (/feed/atom)
612	* - 'rdf_url' - The RDF/RSS 1.0 feed URL (/feed/rfd)
613	* - 'rss_url' - The RSS 0.92 feed URL (/feed/rss)
614	* - 'rss2_url' - The RSS 2.0 feed URL (/feed)
615	* - 'comments_atom_url' - The comments Atom feed URL (/comments/feed)
616	* - 'comments_rss2_url' - The comments RSS 2.0 feed URL (/comments/feed)
617	*
618	* Some `$show` values are deprecated and will be removed in future versions.
619	* These options will trigger the _deprecated_argument() function.
620	*
621	* Deprecated arguments include:
622	*
623	* - 'siteurl' - Use 'url' instead
624	* - 'home' - Use 'url' instead
625	*
626	* @since 0.71
627	*
628	* @global string $wp_version
629	*
630	* @param string $show Optional. Site info to retrieve. Default empty (site name).
631	* @param string $filter Optional. How to filter what is retrieved. Default 'raw'.
632	* @return string Mostly string values, might be empty.
633	*/
634	function get_bloginfo( $show = '', $filter = 'raw' ) {
635	switch( $show ) {
636	case 'home' : // DEPRECATED
637	case 'siteurl' : // DEPRECATED
638	_deprecated_argument( __FUNCTION__, '2.2.0', sprintf(
639	/* translators: 1: 'siteurl'/'home' argument, 2: bloginfo() function name, 3: 'url' argument */
640	__( 'The %1$s option is deprecated for the family of %2$s functions. Use the %3$s option instead.' ),
641	'<code>' . $show . '</code>',
642	'<code>bloginfo()</code>',
643	'<code>url</code>'
644	) );
645	case 'url' :
646	$output = home_url();
647	break;
648	case 'wpurl' :
649	$output = site_url();
650	break;
651	case 'description':
652	$output = get_option('blogdescription');
653	break;
654	case 'rdf_url':
655	$output = get_feed_link('rdf');
656	break;
657	case 'rss_url':
658	$output = get_feed_link('rss');
659	break;
660	case 'rss2_url':
661	$output = get_feed_link('rss2');
662	break;
663	case 'atom_url':
664	$output = get_feed_link('atom');
665	break;
666	case 'comments_atom_url':
667	$output = get_feed_link('comments_atom');
668	break;
669	case 'comments_rss2_url':
670	$output = get_feed_link('comments_rss2');
671	break;
672	case 'pingback_url':
673	$output = site_url( 'xmlrpc.php' );
674	break;
675	case 'stylesheet_url':
676	$output = get_stylesheet_uri();
677	break;
678	case 'stylesheet_directory':
679	$output = get_stylesheet_directory_uri();
680	break;
681	case 'template_directory':
682	case 'template_url':
683	$output = get_template_directory_uri();
684	break;
685	case 'admin_email':
686	$output = get_option('admin_email');
687	break;
688	case 'charset':
689	$output = get_option('blog_charset');
690	if ('' == $output) $output = 'UTF-8';
691	break;
692	case 'html_type' :
693	$output = get_option('html_type');
694	break;
695	case 'version':
696	global $wp_version;
697	$output = $wp_version;
698	break;
699	case 'language':
700	/* translators: Translate this to the correct language tag for your locale,
701	* see https://www.w3.org/International/articles/language-tags/ for reference.
702	* Do not translate into your own language.
703	*/
704	$output = __( 'html_lang_attribute' );
705	if ( 'html_lang_attribute' === $output \|\| preg_match( '/[^a-zA-Z0-9-]/', $output ) ) {
706	$output = is_admin() ? get_user_locale() : get_locale();
707	$output = str_replace( '_', '-', $output );
708	}
709	break;
710	case 'text_direction':
711	_deprecated_argument( __FUNCTION__, '2.2.0', sprintf(
712	/* translators: 1: 'text_direction' argument, 2: bloginfo() function name, 3: is_rtl() function name */
713	__( 'The %1$s option is deprecated for the family of %2$s functions. Use the %3$s function instead.' ),
714	'<code>' . $show . '</code>',
715	'<code>bloginfo()</code>',
716	'<code>is_rtl()</code>'
717	) );
718	if ( function_exists( 'is_rtl' ) ) {
719	$output = is_rtl() ? 'rtl' : 'ltr';
720	} else {
721	$output = 'ltr';
722	}
723	break;
724	case 'name':
725	default:
726	$output = get_option('blogname');
727	break;
728	}
729
730	$url = true;
731	if (strpos($show, 'url') === false &&
732	strpos($show, 'directory') === false &&
733	strpos($show, 'home') === false)
734	$url = false;
735
736	if ( 'display' == $filter ) {
737	if ( $url ) {
738	/**
739	* Filters the URL returned by get_bloginfo().
740	*
741	* @since 2.0.5
742	*
743	* @param mixed $output The URL returned by bloginfo().
744	* @param mixed $show Type of information requested.
745	*/
746	$output = apply_filters( 'bloginfo_url', $output, $show );
747	} else {
748	/**
749	* Filters the site information returned by get_bloginfo().
750	*
751	* @since 0.71
752	*
753	* @param mixed $output The requested non-URL site information.
754	* @param mixed $show Type of information requested.
755	*/
756	$output = apply_filters( 'bloginfo', $output, $show );
757	}
758	}
759
760	return $output;
761	}
762
763	/**
764	* Returns the Site Icon URL.
765	*
766	* @since 4.3.0
767	*
768	* @param int $size Optional. Size of the site icon. Default 512 (pixels).
769	* @param string $url Optional. Fallback url if no site icon is found. Default empty.
770	* @param int $blog_id Optional. ID of the blog to get the site icon for. Default current blog.
771	* @return string Site Icon URL.
772	*/
773	function get_site_icon_url( $size = 512, $url = '', $blog_id = 0 ) {
774	$switched_blog = false;
775
776	if ( is_multisite() && ! empty( $blog_id ) && (int) $blog_id !== get_current_blog_id() ) {
777	switch_to_blog( $blog_id );
778	$switched_blog = true;
779	}
780
781	$site_icon_id = get_option( 'site_icon' );
782
783	if ( $site_icon_id ) {
784	if ( $size >= 512 ) {
785	$size_data = 'full';
786	} else {
787	$size_data = array( $size, $size );
788	}
789	$url = wp_get_attachment_image_url( $site_icon_id, $size_data );
790	}
791
792	if ( $switched_blog ) {
793	restore_current_blog();
794	}
795
796	/**
797	* Filters the site icon URL.
798	*
799	* @since 4.4.0
800	*
801	* @param string $url Site icon URL.
802	* @param int $size Size of the site icon.
803	* @param int $blog_id ID of the blog to get the site icon for.
804	*/
805	return apply_filters( 'get_site_icon_url', $url, $size, $blog_id );
806	}
807
808	/**
809	* Displays the Site Icon URL.
810	*
811	* @since 4.3.0
812	*
813	* @param int $size Optional. Size of the site icon. Default 512 (pixels).
814	* @param string $url Optional. Fallback url if no site icon is found. Default empty.
815	* @param int $blog_id Optional. ID of the blog to get the site icon for. Default current blog.
816	*/
817	function site_icon_url( $size = 512, $url = '', $blog_id = 0 ) {
818	echo esc_url( get_site_icon_url( $size, $url, $blog_id ) );
819	}
820
821	/**
822	* Whether the site has a Site Icon.
823	*
824	* @since 4.3.0
825	*
826	* @param int $blog_id Optional. ID of the blog in question. Default current blog.
827	* @return bool Whether the site has a site icon or not.
828	*/
829	function has_site_icon( $blog_id = 0 ) {
830	return (bool) get_site_icon_url( 512, '', $blog_id );
831	}
832
833	/**
834	* Determines whether the site has a custom logo.
835	*
836	* @since 4.5.0
837	*
838	* @param int $blog_id Optional. ID of the blog in question. Default is the ID of the current blog.
839	* @return bool Whether the site has a custom logo or not.
840	*/
841	function has_custom_logo( $blog_id = 0 ) {
842	$switched_blog = false;
843
844	if ( is_multisite() && ! empty( $blog_id ) && (int) $blog_id !== get_current_blog_id() ) {
845	switch_to_blog( $blog_id );
846	$switched_blog = true;
847	}
848
849	$custom_logo_id = get_theme_mod( 'custom_logo' );
850
851	if ( $switched_blog ) {
852	restore_current_blog();
853	}
854
855	return (bool) $custom_logo_id;
856	}
857
858	/**
859	* Returns a custom logo, linked to home.
860	*
861	* @since 4.5.0
862	*
863	* @param int $blog_id Optional. ID of the blog in question. Default is the ID of the current blog.
864	* @return string Custom logo markup.
865	*/
866	function get_custom_logo( $blog_id = 0 ) {
867	$html = '';
868	$switched_blog = false;
869
870	if ( is_multisite() && ! empty( $blog_id ) && (int) $blog_id !== get_current_blog_id() ) {
871	switch_to_blog( $blog_id );
872	$switched_blog = true;
873	}
874
875	$custom_logo_id = get_theme_mod( 'custom_logo' );
876
877	// We have a logo. Logo is go.
878	if ( $custom_logo_id ) {
879	$custom_logo_attr = array(
880	'class' => 'custom-logo',
881	'itemprop' => 'logo',
882	);
883
884	/*
885	* If the logo alt attribute is empty, get the site title and explicitly
886	* pass it to the attributes used by wp_get_attachment_image().
887	*/
888	$image_alt = get_post_meta( $custom_logo_id, '_wp_attachment_image_alt', true );
889	if ( empty( $image_alt ) ) {
890	$custom_logo_attr['alt'] = get_bloginfo( 'name', 'display' );
891	}
892
893	/*
894	* If the alt attribute is not empty, there's no need to explicitly pass
895	* it because wp_get_attachment_image() already adds the alt attribute.
896	*/
897	$html = sprintf( '<a href="%1$s" class="custom-logo-link" rel="home" itemprop="url">%2$s</a>',
898	esc_url( home_url( '/' ) ),
899	wp_get_attachment_image( $custom_logo_id, 'full', false, $custom_logo_attr )
900	);
901	}
902
903	// If no logo is set but we're in the Customizer, leave a placeholder (needed for the live preview).
904	elseif ( is_customize_preview() ) {
905	$html = sprintf( '<a href="%1$s" class="custom-logo-link" style="display:none;"><img class="custom-logo"/></a>',
906	esc_url( home_url( '/' ) )
907	);
908	}
909
910	if ( $switched_blog ) {
911	restore_current_blog();
912	}
913
914	/**
915	* Filters the custom logo output.
916	*
917	* @since 4.5.0
918	* @since 4.6.0 Added the `$blog_id` parameter.
919	*
920	* @param string $html Custom logo HTML output.
921	* @param int $blog_id ID of the blog to get the custom logo for.
922	*/
923	return apply_filters( 'get_custom_logo', $html, $blog_id );
924	}
925
926	/**
927	* Displays a custom logo, linked to home.
928	*
929	* @since 4.5.0
930	*
931	* @param int $blog_id Optional. ID of the blog in question. Default is the ID of the current blog.
932	*/
933	function the_custom_logo( $blog_id = 0 ) {
934	echo get_custom_logo( $blog_id );
935	}
936
937	/**
938	* Returns document title for the current page.
939	*
940	* @since 4.4.0
941	*
942	* @global int $page Page number of a single post.
943	* @global int $paged Page number of a list of posts.
944	*
945	* @return string Tag with the document title.
946	*/
947	function wp_get_document_title() {
948
949	/**
950	* Filters the document title before it is generated.
951	*
952	* Passing a non-empty value will short-circuit wp_get_document_title(),
953	* returning that value instead.
954	*
955	* @since 4.4.0
956	*
957	* @param string $title The document title. Default empty string.
958	*/
959	$title = apply_filters( 'pre_get_document_title', '' );
960	if ( ! empty( $title ) ) {
961	return $title;
962	}
963
964	global $page, $paged;
965
966	$title = array(
967	'title' => '',
968	);
969
970	// If it's a 404 page, use a "Page not found" title.
971	if ( is_404() ) {
972	$title['title'] = __( 'Page not found' );
973
974	// If it's a search, use a dynamic search results title.
975	} elseif ( is_search() ) {
976	/* translators: %s: search phrase */
977	$title['title'] = sprintf( __( 'Search Results for “%s”' ), get_search_query() );
978
979	// If on the front page, use the site title.
980	} elseif ( is_front_page() ) {
981	$title['title'] = get_bloginfo( 'name', 'display' );
982
983	// If on a post type archive, use the post type archive title.
984	} elseif ( is_post_type_archive() ) {
985	$title['title'] = post_type_archive_title( '', false );
986
987	// If on a taxonomy archive, use the term title.
988	} elseif ( is_tax() ) {
989	$title['title'] = single_term_title( '', false );
990
991	/*
992	* If we're on the blog page that is not the homepage or
993	* a single post of any post type, use the post title.
994	*/
995	} elseif ( is_home() \|\| is_singular() ) {
996	$title['title'] = single_post_title( '', false );
997
998	// If on a category or tag archive, use the term title.
999	} elseif ( is_category() \|\| is_tag() ) {
1000	$title['title'] = single_term_title( '', false );
1001
1002	// If on an author archive, use the author's display name.
1003	} elseif ( is_author() && $author = get_queried_object() ) {
1004	$title['title'] = $author->display_name;
1005
1006	// If it's a date archive, use the date as the title.
1007	} elseif ( is_year() ) {
1008	$title['title'] = get_the_date( _x( 'Y', 'yearly archives date format' ) );
1009
1010	} elseif ( is_month() ) {
1011	$title['title'] = get_the_date( _x( 'F Y', 'monthly archives date format' ) );
1012
1013	} elseif ( is_day() ) {
1014	$title['title'] = get_the_date();
1015	}
1016
1017	// Add a page number if necessary.
1018	if ( ( $paged >= 2 \|\| $page >= 2 ) && ! is_404() ) {
1019	$title['page'] = sprintf( __( 'Page %s' ), max( $paged, $page ) );
1020	}
1021
1022	// Append the description or site title to give context.
1023	if ( is_front_page() ) {
1024	$title['tagline'] = get_bloginfo( 'description', 'display' );
1025	} else {
1026	$title['site'] = get_bloginfo( 'name', 'display' );
1027	}
1028
1029	/**
1030	* Filters the separator for the document title.
1031	*
1032	* @since 4.4.0
1033	*
1034	* @param string $sep Document title separator. Default '-'.
1035	*/
1036	$sep = apply_filters( 'document_title_separator', '-' );
1037
1038	/**
1039	* Filters the parts of the document title.
1040	*
1041	* @since 4.4.0
1042	*
1043	* @param array $title {
1044	* The document title parts.
1045	*
1046	* @type string $title Title of the viewed page.
1047	* @type string $page Optional. Page number if paginated.
1048	* @type string $tagline Optional. Site description when on home page.
1049	* @type string $site Optional. Site title when not on home page.
1050	* }
1051	*/
1052	$title = apply_filters( 'document_title_parts', $title );
1053
1054	$title = implode( " $sep ", array_filter( $title ) );
1055	$title = wptexturize( $title );
1056	$title = convert_chars( $title );
1057	$title = esc_html( $title );
1058	$title = capital_P_dangit( $title );
1059
1060	return $title;
1061	}
1062
1063	/**
1064	* Displays title tag with content.
1065	*
1066	* @ignore
1067	* @since 4.1.0
1068	* @since 4.4.0 Improved title output replaced `wp_title()`.
1069	* @access private
1070	*/
1071	function _wp_render_title_tag() {
1072	if ( ! current_theme_supports( 'title-tag' ) ) {
1073	return;
1074	}
1075
1076	echo '<title>' . wp_get_document_title() . '</title>' . "\n";
1077	}
1078
1079	/**
1080	* Display or retrieve page title for all areas of blog.
1081	*
1082	* By default, the page title will display the separator before the page title,
1083	* so that the blog title will be before the page title. This is not good for
1084	* title display, since the blog title shows up on most tabs and not what is
1085	* important, which is the page that the user is looking at.
1086	*
1087	* There are also SEO benefits to having the blog title after or to the 'right'
1088	* of the page title. However, it is mostly common sense to have the blog title
1089	* to the right with most browsers supporting tabs. You can achieve this by
1090	* using the seplocation parameter and setting the value to 'right'. This change
1091	* was introduced around 2.5.0, in case backward compatibility of themes is
1092	* important.
1093	*
1094	* @since 1.0.0
1095	*
1096	* @global WP_Locale $wp_locale
1097	*
1098	* @param string $sep Optional, default is '»'. How to separate the various items
1099	* within the page title.
1100	* @param bool $display Optional, default is true. Whether to display or retrieve title.
1101	* @param string $seplocation Optional. Direction to display title, 'right'.
1102	* @return string\|null String on retrieve, null when displaying.
1103	*/
1104	function wp_title( $sep = '»', $display = true, $seplocation = '' ) {
1105	global $wp_locale;
1106
1107	$m = get_query_var( 'm' );
1108	$year = get_query_var( 'year' );
1109	$monthnum = get_query_var( 'monthnum' );
1110	$day = get_query_var( 'day' );
1111	$search = get_query_var( 's' );
1112	$title = '';
1113
1114	$t_sep = '%WP_TITLE_SEP%'; // Temporary separator, for accurate flipping, if necessary
1115
1116	// If there is a post
1117	if ( is_single() \|\| ( is_home() && ! is_front_page() ) \|\| ( is_page() && ! is_front_page() ) ) {
1118	$title = single_post_title( '', false );
1119	}
1120
1121	// If there's a post type archive
1122	if ( is_post_type_archive() ) {
1123	$post_type = get_query_var( 'post_type' );
1124	if ( is_array( $post_type ) ) {
1125	$post_type = reset( $post_type );
1126	}
1127	$post_type_object = get_post_type_object( $post_type );
1128	if ( ! $post_type_object->has_archive ) {
1129	$title = post_type_archive_title( '', false );
1130	}
1131	}
1132
1133	// If there's a category or tag
1134	if ( is_category() \|\| is_tag() ) {
1135	$title = single_term_title( '', false );
1136	}
1137
1138	// If there's a taxonomy
1139	if ( is_tax() ) {
1140	$term = get_queried_object();
1141	if ( $term ) {
1142	$tax = get_taxonomy( $term->taxonomy );
1143	$title = single_term_title( $tax->labels->name . $t_sep, false );
1144	}
1145	}
1146
1147	// If there's an author
1148	if ( is_author() && ! is_post_type_archive() ) {
1149	$author = get_queried_object();
1150	if ( $author ) {
1151	$title = $author->display_name;
1152	}
1153	}
1154
1155	// Post type archives with has_archive should override terms.
1156	if ( is_post_type_archive() && $post_type_object->has_archive ) {
1157	$title = post_type_archive_title( '', false );
1158	}
1159
1160	// If there's a month
1161	if ( is_archive() && ! empty( $m ) ) {
1162	$my_year = substr( $m, 0, 4 );
1163	$my_month = $wp_locale->get_month( substr( $m, 4, 2 ) );
1164	$my_day = intval( substr( $m, 6, 2 ) );
1165	$title = $my_year . ( $my_month ? $t_sep . $my_month : '' ) . ( $my_day ? $t_sep . $my_day : '' );
1166	}
1167
1168	// If there's a year
1169	if ( is_archive() && ! empty( $year ) ) {
1170	$title = $year;
1171	if ( ! empty( $monthnum ) ) {
1172	$title .= $t_sep . $wp_locale->get_month( $monthnum );
1173	}
1174	if ( ! empty( $day ) ) {
1175	$title .= $t_sep . zeroise( $day, 2 );
1176	}
1177	}
1178
1179	// If it's a search
1180	if ( is_search() ) {
1181	/* translators: 1: separator, 2: search phrase */
1182	$title = sprintf( __( 'Search Results %1$s %2$s' ), $t_sep, strip_tags( $search ) );
1183	}
1184
1185	// If it's a 404 page
1186	if ( is_404() ) {
1187	$title = __( 'Page not found' );
1188	}
1189
1190	$prefix = '';
1191	if ( ! empty( $title ) ) {
1192	$prefix = " $sep ";
1193	}
1194
1195	/**
1196	* Filters the parts of the page title.
1197	*
1198	* @since 4.0.0
1199	*
1200	* @param array $title_array Parts of the page title.
1201	*/
1202	$title_array = apply_filters( 'wp_title_parts', explode( $t_sep, $title ) );
1203
1204	// Determines position of the separator and direction of the breadcrumb
1205	if ( 'right' == $seplocation ) { // sep on right, so reverse the order
1206	$title_array = array_reverse( $title_array );
1207	$title = implode( " $sep ", $title_array ) . $prefix;
1208	} else {
1209	$title = $prefix . implode( " $sep ", $title_array );
1210	}
1211
1212	/**
1213	* Filters the text of the page title.
1214	*
1215	* @since 2.0.0
1216	*
1217	* @param string $title Page title.
1218	* @param string $sep Title separator.
1219	* @param string $seplocation Location of the separator (left or right).
1220	*/
1221	$title = apply_filters( 'wp_title', $title, $sep, $seplocation );
1222
1223	// Send it out
1224	if ( $display ) {
1225	echo $title;
1226	} else {
1227	return $title;
1228	}
1229	}
1230
1231	/**
1232	* Display or retrieve page title for post.
1233	*
1234	* This is optimized for single.php template file for displaying the post title.
1235	*
1236	* It does not support placing the separator after the title, but by leaving the
1237	* prefix parameter empty, you can set the title separator manually. The prefix
1238	* does not automatically place a space between the prefix, so if there should
1239	* be a space, the parameter value will need to have it at the end.
1240	*
1241	* @since 0.71
1242	*
1243	* @param string $prefix Optional. What to display before the title.
1244	* @param bool $display Optional, default is true. Whether to display or retrieve title.
1245	* @return string\|void Title when retrieving.
1246	*/
1247	function single_post_title( $prefix = '', $display = true ) {
1248	$_post = get_queried_object();
1249
1250	if ( !isset($_post->post_title) )
1251	return;
1252
1253	/**
1254	* Filters the page title for a single post.
1255	*
1256	* @since 0.71
1257	*
1258	* @param string $_post_title The single post page title.
1259	* @param object $_post The current queried object as returned by get_queried_object().
1260	*/
1261	$title = apply_filters( 'single_post_title', $_post->post_title, $_post );
1262	if ( $display )
1263	echo $prefix . $title;
1264	else
1265	return $prefix . $title;
1266	}
1267
1268	/**
1269	* Display or retrieve title for a post type archive.
1270	*
1271	* This is optimized for archive.php and archive-{$post_type}.php template files
1272	* for displaying the title of the post type.
1273	*
1274	* @since 3.1.0
1275	*
1276	* @param string $prefix Optional. What to display before the title.
1277	* @param bool $display Optional, default is true. Whether to display or retrieve title.
1278	* @return string\|void Title when retrieving, null when displaying or failure.
1279	*/
1280	function post_type_archive_title( $prefix = '', $display = true ) {
1281	if ( ! is_post_type_archive() )
1282	return;
1283
1284	$post_type = get_query_var( 'post_type' );
1285	if ( is_array( $post_type ) )
1286	$post_type = reset( $post_type );
1287
1288	$post_type_obj = get_post_type_object( $post_type );
1289
1290	/**
1291	* Filters the post type archive title.
1292	*
1293	* @since 3.1.0
1294	*
1295	* @param string $post_type_name Post type 'name' label.
1296	* @param string $post_type Post type.
1297	*/
1298	$title = apply_filters( 'post_type_archive_title', $post_type_obj->labels->name, $post_type );
1299
1300	if ( $display )
1301	echo $prefix . $title;
1302	else
1303	return $prefix . $title;
1304	}
1305
1306	/**
1307	* Display or retrieve page title for category archive.
1308	*
1309	* Useful for category template files for displaying the category page title.
1310	* The prefix does not automatically place a space between the prefix, so if
1311	* there should be a space, the parameter value will need to have it at the end.
1312	*
1313	* @since 0.71
1314	*
1315	* @param string $prefix Optional. What to display before the title.
1316	* @param bool $display Optional, default is true. Whether to display or retrieve title.
1317	* @return string\|void Title when retrieving.
1318	*/
1319	function single_cat_title( $prefix = '', $display = true ) {
1320	return single_term_title( $prefix, $display );
1321	}
1322
1323	/**
1324	* Display or retrieve page title for tag post archive.
1325	*
1326	* Useful for tag template files for displaying the tag page title. The prefix
1327	* does not automatically place a space between the prefix, so if there should
1328	* be a space, the parameter value will need to have it at the end.
1329	*
1330	* @since 2.3.0
1331	*
1332	* @param string $prefix Optional. What to display before the title.
1333	* @param bool $display Optional, default is true. Whether to display or retrieve title.
1334	* @return string\|void Title when retrieving.
1335	*/
1336	function single_tag_title( $prefix = '', $display = true ) {
1337	return single_term_title( $prefix, $display );
1338	}
1339
1340	/**
1341	* Display or retrieve page title for taxonomy term archive.
1342	*
1343	* Useful for taxonomy term template files for displaying the taxonomy term page title.
1344	* The prefix does not automatically place a space between the prefix, so if there should
1345	* be a space, the parameter value will need to have it at the end.
1346	*
1347	* @since 3.1.0
1348	*
1349	* @param string $prefix Optional. What to display before the title.
1350	* @param bool $display Optional, default is true. Whether to display or retrieve title.
1351	* @return string\|void Title when retrieving.
1352	*/
1353	function single_term_title( $prefix = '', $display = true ) {
1354	$term = get_queried_object();
1355
1356	if ( !$term )
1357	return;
1358
1359	if ( is_category() ) {
1360	/**
1361	* Filters the category archive page title.
1362	*
1363	* @since 2.0.10
1364	*
1365	* @param string $term_name Category name for archive being displayed.
1366	*/
1367	$term_name = apply_filters( 'single_cat_title', $term->name );
1368	} elseif ( is_tag() ) {
1369	/**
1370	* Filters the tag archive page title.
1371	*
1372	* @since 2.3.0
1373	*
1374	* @param string $term_name Tag name for archive being displayed.
1375	*/
1376	$term_name = apply_filters( 'single_tag_title', $term->name );
1377	} elseif ( is_tax() ) {
1378	/**
1379	* Filters the custom taxonomy archive page title.
1380	*
1381	* @since 3.1.0
1382	*
1383	* @param string $term_name Term name for archive being displayed.
1384	*/
1385	$term_name = apply_filters( 'single_term_title', $term->name );
1386	} else {
1387	return;
1388	}
1389
1390	if ( empty( $term_name ) )
1391	return;
1392
1393	if ( $display )
1394	echo $prefix . $term_name;
1395	else
1396	return $prefix . $term_name;
1397	}
1398
1399	/**
1400	* Display or retrieve page title for post archive based on date.
1401	*
1402	* Useful for when the template only needs to display the month and year,
1403	* if either are available. The prefix does not automatically place a space
1404	* between the prefix, so if there should be a space, the parameter value
1405	* will need to have it at the end.
1406	*
1407	* @since 0.71
1408	*
1409	* @global WP_Locale $wp_locale
1410	*
1411	* @param string $prefix Optional. What to display before the title.
1412	* @param bool $display Optional, default is true. Whether to display or retrieve title.
1413	* @return string\|void Title when retrieving.
1414	*/
1415	function single_month_title($prefix = '', $display = true ) {
1416	global $wp_locale;
1417
1418	$m = get_query_var('m');
1419	$year = get_query_var('year');
1420	$monthnum = get_query_var('monthnum');
1421
1422	if ( !empty($monthnum) && !empty($year) ) {
1423	$my_year = $year;
1424	$my_month = $wp_locale->get_month($monthnum);
1425	} elseif ( !empty($m) ) {
1426	$my_year = substr($m, 0, 4);
1427	$my_month = $wp_locale->get_month(substr($m, 4, 2));
1428	}
1429
1430	if ( empty($my_month) )
1431	return false;
1432
1433	$result = $prefix . $my_month . $prefix . $my_year;
1434
1435	if ( !$display )
1436	return $result;
1437	echo $result;
1438	}
1439
1440	/**
1441	* Display the archive title based on the queried object.
1442	*
1443	* @since 4.1.0
1444	*
1445	* @see get_the_archive_title()
1446	*
1447	* @param string $before Optional. Content to prepend to the title. Default empty.
1448	* @param string $after Optional. Content to append to the title. Default empty.
1449	*/
1450	function the_archive_title( $before = '', $after = '' ) {
1451	$title = get_the_archive_title();
1452
1453	if ( ! empty( $title ) ) {
1454	echo $before . $title . $after;
1455	}
1456	}
1457
1458	/**
1459	* Retrieve the archive title based on the queried object.
1460	*
1461	* @since 4.1.0
1462	*
1463	* @return string Archive title.
1464	*/
1465	function get_the_archive_title() {
1466	if ( is_category() ) {
1467	/* translators: Category archive title. 1: Category name */
1468	$title = sprintf( __( 'Category: %s' ), single_cat_title( '', false ) );
1469	} elseif ( is_tag() ) {
1470	/* translators: Tag archive title. 1: Tag name */
1471	$title = sprintf( __( 'Tag: %s' ), single_tag_title( '', false ) );
1472	} elseif ( is_author() ) {
1473	/* translators: Author archive title. 1: Author name */
1474	$title = sprintf( __( 'Author: %s' ), '<span class="vcard">' . get_the_author() . '</span>' );
1475	} elseif ( is_year() ) {
1476	/* translators: Yearly archive title. 1: Year */
1477	$title = sprintf( __( 'Year: %s' ), get_the_date( _x( 'Y', 'yearly archives date format' ) ) );
1478	} elseif ( is_month() ) {
1479	/* translators: Monthly archive title. 1: Month name and year */
1480	$title = sprintf( __( 'Month: %s' ), get_the_date( _x( 'F Y', 'monthly archives date format' ) ) );
1481	} elseif ( is_day() ) {
1482	/* translators: Daily archive title. 1: Date */
1483	$title = sprintf( __( 'Day: %s' ), get_the_date( _x( 'F j, Y', 'daily archives date format' ) ) );
1484	} elseif ( is_tax( 'post_format' ) ) {
1485	if ( is_tax( 'post_format', 'post-format-aside' ) ) {
1486	$title = _x( 'Asides', 'post format archive title' );
1487	} elseif ( is_tax( 'post_format', 'post-format-gallery' ) ) {
1488	$title = _x( 'Galleries', 'post format archive title' );
1489	} elseif ( is_tax( 'post_format', 'post-format-image' ) ) {
1490	$title = _x( 'Images', 'post format archive title' );
1491	} elseif ( is_tax( 'post_format', 'post-format-video' ) ) {
1492	$title = _x( 'Videos', 'post format archive title' );
1493	} elseif ( is_tax( 'post_format', 'post-format-quote' ) ) {
1494	$title = _x( 'Quotes', 'post format archive title' );
1495	} elseif ( is_tax( 'post_format', 'post-format-link' ) ) {
1496	$title = _x( 'Links', 'post format archive title' );
1497	} elseif ( is_tax( 'post_format', 'post-format-status' ) ) {
1498	$title = _x( 'Statuses', 'post format archive title' );
1499	} elseif ( is_tax( 'post_format', 'post-format-audio' ) ) {
1500	$title = _x( 'Audio', 'post format archive title' );
1501	} elseif ( is_tax( 'post_format', 'post-format-chat' ) ) {
1502	$title = _x( 'Chats', 'post format archive title' );
1503	}
1504	} elseif ( is_post_type_archive() ) {
1505	/* translators: Post type archive title. 1: Post type name */
1506	$title = sprintf( __( 'Archives: %s' ), post_type_archive_title( '', false ) );
1507	} elseif ( is_tax() ) {
1508	$tax = get_taxonomy( get_queried_object()->taxonomy );
1509	/* translators: Taxonomy term archive title. 1: Taxonomy singular name, 2: Current taxonomy term */
1510	$title = sprintf( __( '%1$s: %2$s' ), $tax->labels->singular_name, single_term_title( '', false ) );
1511	} else {
1512	$title = __( 'Archives' );
1513	}
1514
1515	/**
1516	* Filters the archive title.
1517	*
1518	* @since 4.1.0
1519	*
1520	* @param string $title Archive title to be displayed.
1521	*/
1522	return apply_filters( 'get_the_archive_title', $title );
1523	}
1524
1525	/**
1526	* Display category, tag, term, or author description.
1527	*
1528	* @since 4.1.0
1529	*
1530	* @see get_the_archive_description()
1531	*
1532	* @param string $before Optional. Content to prepend to the description. Default empty.
1533	* @param string $after Optional. Content to append to the description. Default empty.
1534	*/
1535	function the_archive_description( $before = '', $after = '' ) {
1536	$description = get_the_archive_description();
1537	if ( $description ) {
1538	echo $before . $description . $after;
1539	}
1540	}
1541
1542	/**
1543	* Retrieves the description for an author, post type, or term archive.
1544	*
1545	* @since 4.1.0
1546	* @since 4.7.0 Added support for author archives.
1547	* @since 4.9.0 Added support for post type archives.
1548	*
1549	* @see term_description()
1550	*
1551	* @return string Archive description.
1552	*/
1553	function get_the_archive_description() {
1554	if ( is_author() ) {
1555	$description = get_the_author_meta( 'description' );
1556	} elseif ( is_post_type_archive() ) {
1557	$description = get_the_post_type_description();
1558	} else {
1559	$description = term_description();
1560	}
1561
1562	/**
1563	* Filters the archive description.
1564	*
1565	* @since 4.1.0
1566	*
1567	* @param string $description Archive description to be displayed.
1568	*/
1569	return apply_filters( 'get_the_archive_description', $description );
1570	}
1571
1572	/**
1573	* Retrieves the description for a post type archive.
1574	*
1575	* @since 4.9.0
1576	*
1577	* @return string The post type description.
1578	*/
1579	function get_the_post_type_description() {
1580	$post_type = get_query_var( 'post_type' );
1581
1582	if ( is_array( $post_type ) ) {
1583	$post_type = reset( $post_type );
1584	}
1585
1586	$post_type_obj = get_post_type_object( $post_type );
1587
1588	// Check if a description is set.
1589	if ( isset( $post_type_obj->description ) ) {
1590	$description = $post_type_obj->description;
1591	} else {
1592	$description = '';
1593	}
1594
1595	/**
1596	* Filters the description for a post type archive.
1597	*
1598	* @since 4.9.0
1599	*
1600	* @param string $description The post type description.
1601	* @param WP_Post_Type $post_type_obj The post type object.
1602	*/
1603	return apply_filters( 'get_the_post_type_description', $description, $post_type_obj );
1604	}
1605
1606	/**
1607	* Retrieve archive link content based on predefined or custom code.
1608	*
1609	* The format can be one of four styles. The 'link' for head element, 'option'
1610	* for use in the select element, 'html' for use in list (either ol or ul HTML
1611	* elements). Custom content is also supported using the before and after
1612	* parameters.
1613	*
1614	* The 'link' format uses the `<link>` HTML element with the archives
1615	* relationship. The before and after parameters are not used. The text
1616	* parameter is used to describe the link.
1617	*
1618	* The 'option' format uses the option HTML element for use in select element.
1619	* The value is the url parameter and the before and after parameters are used
1620	* between the text description.
1621	*
1622	* The 'html' format, which is the default, uses the li HTML element for use in
1623	* the list HTML elements. The before parameter is before the link and the after
1624	* parameter is after the closing link.
1625	*
1626	* The custom format uses the before parameter before the link ('a' HTML
1627	* element) and the after parameter after the closing link tag. If the above
1628	* three values for the format are not used, then custom format is assumed.
1629	*
1630	* @since 1.0.0
1631	*
1632	* @param string $url URL to archive.
1633	* @param string $text Archive text description.
1634	* @param string $format Optional, default is 'html'. Can be 'link', 'option', 'html', or custom.
1635	* @param string $before Optional. Content to prepend to the description. Default empty.
1636	* @param string $after Optional. Content to append to the description. Default empty.
1637	* @return string HTML link content for archive.
1638	*/
1639	function get_archives_link($url, $text, $format = 'html', $before = '', $after = '') {
1640	$text = wptexturize($text);
1641	$url = esc_url($url);
1642
1643	if ('link' == $format)
1644	$link_html = "\t<link rel='archives' title='" . esc_attr( $text ) . "' href='$url' />\n";
1645	elseif ('option' == $format)
1646	$link_html = "\t<option value='$url'>$before $text $after</option>\n";
1647	elseif ('html' == $format)
1648	$link_html = "\t<li>$before<a href='$url'>$text</a>$after</li>\n";
1649	else // custom
1650	$link_html = "\t$before<a href='$url'>$text</a>$after\n";
1651
1652	/**
1653	* Filters the archive link content.
1654	*
1655	* @since 2.6.0
1656	* @since 4.5.0 Added the `$url`, `$text`, `$format`, `$before`, and `$after` parameters.
1657	*
1658	* @param string $link_html The archive HTML link content.
1659	* @param string $url URL to archive.
1660	* @param string $text Archive text description.
1661	* @param string $format Link format. Can be 'link', 'option', 'html', or custom.
1662	* @param string $before Content to prepend to the description.
1663	* @param string $after Content to append to the description.
1664	*/
1665	return apply_filters( 'get_archives_link', $link_html, $url, $text, $format, $before, $after );
1666	}
1667
1668	/**
1669	* Display archive links based on type and format.
1670	*
1671	* @since 1.2.0
1672	* @since 4.4.0 $post_type arg was added.
1673	*
1674	* @see get_archives_link()
1675	*
1676	* @global wpdb $wpdb
1677	* @global WP_Locale $wp_locale
1678	*
1679	* @param string\|array $args {
1680	* Default archive links arguments. Optional.
1681	*
1682	* @type string $type Type of archive to retrieve. Accepts 'daily', 'weekly', 'monthly',
1683	* 'yearly', 'postbypost', or 'alpha'. Both 'postbypost' and 'alpha'
1684	* display the same archive link list as well as post titles instead
1685	* of displaying dates. The difference between the two is that 'alpha'
1686	* will order by post title and 'postbypost' will order by post date.
1687	* Default 'monthly'.
1688	* @type string\|int $limit Number of links to limit the query to. Default empty (no limit).
1689	* @type string $format Format each link should take using the $before and $after args.
1690	* Accepts 'link' (`<link>` tag), 'option' (`<option>` tag), 'html'
1691	* (`<li>` tag), or a custom format, which generates a link anchor
1692	* with $before preceding and $after succeeding. Default 'html'.
1693	* @type string $before Markup to prepend to the beginning of each link. Default empty.
1694	* @type string $after Markup to append to the end of each link. Default empty.
1695	* @type bool $show_post_count Whether to display the post count alongside the link. Default false.
1696	* @type bool\|int $echo Whether to echo or return the links list. Default 1\|true to echo.
1697	* @type string $order Whether to use ascending or descending order. Accepts 'ASC', or 'DESC'.
1698	* Default 'DESC'.
1699	* @type string $post_type Post type. Default 'post'.
1700	* }
1701	* @return string\|void String when retrieving.
1702	*/
1703	function wp_get_archives( $args = '' ) {
1704	global $wpdb, $wp_locale;
1705
1706	$defaults = array(
1707	'type' => 'monthly', 'limit' => '',
1708	'format' => 'html', 'before' => '',
1709	'after' => '', 'show_post_count' => false,
1710	'echo' => 1, 'order' => 'DESC',
1711	'post_type' => 'post'
1712	);
1713
1714	$r = wp_parse_args( $args, $defaults );
1715
1716	$post_type_object = get_post_type_object( $r['post_type'] );
1717	if ( ! is_post_type_viewable( $post_type_object ) ) {
1718	return;
1719	}
1720	$r['post_type'] = $post_type_object->name;
1721
1722	if ( '' == $r['type'] ) {
1723	$r['type'] = 'monthly';
1724	}
1725
1726	if ( ! empty( $r['limit'] ) ) {
1727	$r['limit'] = absint( $r['limit'] );
1728	$r['limit'] = ' LIMIT ' . $r['limit'];
1729	}
1730
1731	$order = strtoupper( $r['order'] );
1732	if ( $order !== 'ASC' ) {
1733	$order = 'DESC';
1734	}
1735
1736	// this is what will separate dates on weekly archive links
1737	$archive_week_separator = '–';
1738
1739	$sql_where = $wpdb->prepare( "WHERE post_type = %s AND post_status = 'publish'", $r['post_type'] );
1740
1741	/**
1742	* Filters the SQL WHERE clause for retrieving archives.
1743	*
1744	* @since 2.2.0
1745	*
1746	* @param string $sql_where Portion of SQL query containing the WHERE clause.
1747	* @param array $r An array of default arguments.
1748	*/
1749	$where = apply_filters( 'getarchives_where', $sql_where, $r );
1750
1751	/**
1752	* Filters the SQL JOIN clause for retrieving archives.
1753	*
1754	* @since 2.2.0
1755	*
1756	* @param string $sql_join Portion of SQL query containing JOIN clause.
1757	* @param array $r An array of default arguments.
1758	*/
1759	$join = apply_filters( 'getarchives_join', '', $r );
1760
1761	$output = '';
1762
1763	$last_changed = wp_cache_get_last_changed( 'posts' );
1764
1765	$limit = $r['limit'];
1766
1767	if ( 'monthly' == $r['type'] ) {
1768	$query = "SELECT YEAR(post_date) AS `year`, MONTH(post_date) AS `month`, count(ID) as posts FROM $wpdb->posts $join $where GROUP BY YEAR(post_date), MONTH(post_date) ORDER BY post_date $order $limit";
1769	$key = md5( $query );
1770	$key = "wp_get_archives:$key:$last_changed";
1771	if ( ! $results = wp_cache_get( $key, 'posts' ) ) {
1772	$results = $wpdb->get_results( $query );
1773	wp_cache_set( $key, $results, 'posts' );
1774	}
1775	if ( $results ) {
1776	$after = $r['after'];
1777	foreach ( (array) $results as $result ) {
1778	$url = get_month_link( $result->year, $result->month );
1779	if ( 'post' !== $r['post_type'] ) {
1780	$url = add_query_arg( 'post_type', $r['post_type'], $url );
1781	}
1782	/* translators: 1: month name, 2: 4-digit year */
1783	$text = sprintf( __( '%1$s %2$d' ), $wp_locale->get_month( $result->month ), $result->year );
1784	if ( $r['show_post_count'] ) {
1785	$r['after'] = ' (' . $result->posts . ')' . $after;
1786	}
1787	$output .= get_archives_link( $url, $text, $r['format'], $r['before'], $r['after'] );
1788	}
1789	}
1790	} elseif ( 'yearly' == $r['type'] ) {
1791	$query = "SELECT YEAR(post_date) AS `year`, count(ID) as posts FROM $wpdb->posts $join $where GROUP BY YEAR(post_date) ORDER BY post_date $order $limit";
1792	$key = md5( $query );
1793	$key = "wp_get_archives:$key:$last_changed";
1794	if ( ! $results = wp_cache_get( $key, 'posts' ) ) {
1795	$results = $wpdb->get_results( $query );
1796	wp_cache_set( $key, $results, 'posts' );
1797	}
1798	if ( $results ) {
1799	$after = $r['after'];
1800	foreach ( (array) $results as $result) {
1801	$url = get_year_link( $result->year );
1802	if ( 'post' !== $r['post_type'] ) {
1803	$url = add_query_arg( 'post_type', $r['post_type'], $url );
1804	}
1805	$text = sprintf( '%d', $result->year );
1806	if ( $r['show_post_count'] ) {
1807	$r['after'] = ' (' . $result->posts . ')' . $after;
1808	}
1809	$output .= get_archives_link( $url, $text, $r['format'], $r['before'], $r['after'] );
1810	}
1811	}
1812	} elseif ( 'daily' == $r['type'] ) {
1813	$query = "SELECT YEAR(post_date) AS `year`, MONTH(post_date) AS `month`, DAYOFMONTH(post_date) AS `dayofmonth`, count(ID) as posts FROM $wpdb->posts $join $where GROUP BY YEAR(post_date), MONTH(post_date), DAYOFMONTH(post_date) ORDER BY post_date $order $limit";
1814	$key = md5( $query );
1815	$key = "wp_get_archives:$key:$last_changed";
1816	if ( ! $results = wp_cache_get( $key, 'posts' ) ) {
1817	$results = $wpdb->get_results( $query );
1818	wp_cache_set( $key, $results, 'posts' );
1819	}
1820	if ( $results ) {
1821	$after = $r['after'];
1822	foreach ( (array) $results as $result ) {
1823	$url = get_day_link( $result->year, $result->month, $result->dayofmonth );
1824	if ( 'post' !== $r['post_type'] ) {
1825	$url = add_query_arg( 'post_type', $r['post_type'], $url );
1826	}
1827	$date = sprintf( '%1$d-%2$02d-%3$02d 00:00:00', $result->year, $result->month, $result->dayofmonth );
1828	$text = mysql2date( get_option( 'date_format' ), $date );
1829	if ( $r['show_post_count'] ) {
1830	$r['after'] = ' (' . $result->posts . ')' . $after;
1831	}
1832	$output .= get_archives_link( $url, $text, $r['format'], $r['before'], $r['after'] );
1833	}
1834	}
1835	} elseif ( 'weekly' == $r['type'] ) {
1836	$week = _wp_mysql_week( '`post_date`' );
1837	$query = "SELECT DISTINCT $week AS `week`, YEAR( `post_date` ) AS `yr`, DATE_FORMAT( `post_date`, '%Y-%m-%d' ) AS `yyyymmdd`, count( `ID` ) AS `posts` FROM `$wpdb->posts` $join $where GROUP BY $week, YEAR( `post_date` ) ORDER BY `post_date` $order $limit";
1838	$key = md5( $query );
1839	$key = "wp_get_archives:$key:$last_changed";
1840	if ( ! $results = wp_cache_get( $key, 'posts' ) ) {
1841	$results = $wpdb->get_results( $query );
1842	wp_cache_set( $key, $results, 'posts' );
1843	}
1844	$arc_w_last = '';
1845	if ( $results ) {
1846	$after = $r['after'];
1847	foreach ( (array) $results as $result ) {
1848	if ( $result->week != $arc_w_last ) {
1849	$arc_year = $result->yr;
1850	$arc_w_last = $result->week;
1851	$arc_week = get_weekstartend( $result->yyyymmdd, get_option( 'start_of_week' ) );
1852	$arc_week_start = date_i18n( get_option( 'date_format' ), $arc_week['start'] );
1853	$arc_week_end = date_i18n( get_option( 'date_format' ), $arc_week['end'] );
1854	$url = add_query_arg( array( 'm' => $arc_year, 'w' => $result->week, ), home_url( '/' ) );
1855	if ( 'post' !== $r['post_type'] ) {
1856	$url = add_query_arg( 'post_type', $r['post_type'], $url );
1857	}
1858	$text = $arc_week_start . $archive_week_separator . $arc_week_end;
1859	if ( $r['show_post_count'] ) {
1860	$r['after'] = ' (' . $result->posts . ')' . $after;
1861	}
1862	$output .= get_archives_link( $url, $text, $r['format'], $r['before'], $r['after'] );
1863	}
1864	}
1865	}
1866	} elseif ( ( 'postbypost' == $r['type'] ) \|\| ('alpha' == $r['type'] ) ) {
1867	$orderby = ( 'alpha' == $r['type'] ) ? 'post_title ASC ' : 'post_date DESC, ID DESC ';
1868	$query = "SELECT * FROM $wpdb->posts $join $where ORDER BY $orderby $limit";
1869	$key = md5( $query );
1870	$key = "wp_get_archives:$key:$last_changed";
1871	if ( ! $results = wp_cache_get( $key, 'posts' ) ) {
1872	$results = $wpdb->get_results( $query );
1873	wp_cache_set( $key, $results, 'posts' );
1874	}
1875	if ( $results ) {
1876	foreach ( (array) $results as $result ) {
1877	if ( $result->post_date != '0000-00-00 00:00:00' ) {
1878	$url = get_permalink( $result );
1879	if ( $result->post_title ) {
1880	/** This filter is documented in wp-includes/post-template.php */
1881	$text = strip_tags( apply_filters( 'the_title', $result->post_title, $result->ID ) );
1882	} else {
1883	$text = $result->ID;
1884	}
1885	$output .= get_archives_link( $url, $text, $r['format'], $r['before'], $r['after'] );
1886	}
1887	}
1888	}
1889	}
1890	if ( $r['echo'] ) {
1891	echo $output;
1892	} else {
1893	return $output;
1894	}
1895	}
1896
1897	/**
1898	* Get number of days since the start of the week.
1899	*
1900	* @since 1.5.0
1901	*
1902	* @param int $num Number of day.
1903	* @return float Days since the start of the week.
1904	*/
1905	function calendar_week_mod($num) {
1906	$base = 7;
1907	return ($num - $base*floor($num/$base));
1908	}
1909
1910	/**
1911	* Display calendar with days that have posts as links.
1912	*
1913	* The calendar is cached, which will be retrieved, if it exists. If there are
1914	* no posts for the month, then it will not be displayed.
1915	*
1916	* @since 1.0.0
1917	*
1918	* @global wpdb $wpdb
1919	* @global int $m
1920	* @global int $monthnum
1921	* @global int $year
1922	* @global WP_Locale $wp_locale
1923	* @global array $posts
1924	*
1925	* @param bool $initial Optional, default is true. Use initial calendar names.
1926	* @param bool $echo Optional, default is true. Set to false for return.
1927	* @return string\|void String when retrieving.
1928	*/
1929	function get_calendar( $initial = true, $echo = true ) {
1930	global $wpdb, $m, $monthnum, $year, $wp_locale, $posts;
1931
1932	$key = md5( $m . $monthnum . $year );
1933	$cache = wp_cache_get( 'get_calendar', 'calendar' );
1934
1935	if ( $cache && is_array( $cache ) && isset( $cache[ $key ] ) ) {
1936	/** This filter is documented in wp-includes/general-template.php */
1937	$output = apply_filters( 'get_calendar', $cache[ $key ] );
1938
1939	if ( $echo ) {
1940	echo $output;
1941	return;
1942	}
1943
1944	return $output;
1945	}
1946
1947	if ( ! is_array( $cache ) ) {
1948	$cache = array();
1949	}
1950
1951	// Quick check. If we have no posts at all, abort!
1952	if ( ! $posts ) {
1953	$gotsome = $wpdb->get_var("SELECT 1 as test FROM $wpdb->posts WHERE post_type = 'post' AND post_status = 'publish' LIMIT 1");
1954	if ( ! $gotsome ) {
1955	$cache[ $key ] = '';
1956	wp_cache_set( 'get_calendar', $cache, 'calendar' );
1957	return;
1958	}
1959	}
1960
1961	if ( isset( $_GET['w'] ) ) {
1962	$w = (int) $_GET['w'];
1963	}
1964	// week_begins = 0 stands for Sunday
1965	$week_begins = (int) get_option( 'start_of_week' );
1966	$ts = current_time( 'timestamp' );
1967
1968	// Let's figure out when we are
1969	if ( ! empty( $monthnum ) && ! empty( $year ) ) {
1970	$thismonth = zeroise( intval( $monthnum ), 2 );
1971	$thisyear = (int) $year;
1972	} elseif ( ! empty( $w ) ) {
1973	// We need to get the month from MySQL
1974	$thisyear = (int) substr( $m, 0, 4 );
1975	//it seems MySQL's weeks disagree with PHP's
1976	$d = ( ( $w - 1 ) * 7 ) + 6;
1977	$thismonth = $wpdb->get_var("SELECT DATE_FORMAT((DATE_ADD('{$thisyear}0101', INTERVAL $d DAY) ), '%m')");
1978	} elseif ( ! empty( $m ) ) {
1979	$thisyear = (int) substr( $m, 0, 4 );
1980	if ( strlen( $m ) < 6 ) {
1981	$thismonth = '01';
1982	} else {
1983	$thismonth = zeroise( (int) substr( $m, 4, 2 ), 2 );
1984	}
1985	} else {
1986	$thisyear = gmdate( 'Y', $ts );
1987	$thismonth = gmdate( 'm', $ts );
1988	}
1989
1990	$unixmonth = mktime( 0, 0 , 0, $thismonth, 1, $thisyear );
1991	$last_day = date( 't', $unixmonth );
1992
1993	// Get the next and previous month and year with at least one post
1994	$previous = $wpdb->get_row("SELECT MONTH(post_date) AS month, YEAR(post_date) AS year
1995	FROM $wpdb->posts
1996	WHERE post_date < '$thisyear-$thismonth-01'
1997	AND post_type = 'post' AND post_status = 'publish'
1998	ORDER BY post_date DESC
1999	LIMIT 1");
2000	$next = $wpdb->get_row("SELECT MONTH(post_date) AS month, YEAR(post_date) AS year
2001	FROM $wpdb->posts
2002	WHERE post_date > '$thisyear-$thismonth-{$last_day} 23:59:59'
2003	AND post_type = 'post' AND post_status = 'publish'
2004	ORDER BY post_date ASC
2005	LIMIT 1");
2006
2007	/* translators: Calendar caption: 1: month name, 2: 4-digit year */
2008	$calendar_caption = _x('%1$s %2$s', 'calendar caption');
2009	$calendar_output = '<table id="wp-calendar">
2010	<caption>' . sprintf(
2011	$calendar_caption,
2012	$wp_locale->get_month( $thismonth ),
2013	date( 'Y', $unixmonth )
2014	) . '</caption>
2015	<thead>
2016	<tr>';
2017
2018	$myweek = array();
2019
2020	for ( $wdcount = 0; $wdcount <= 6; $wdcount++ ) {
2021	$myweek[] = $wp_locale->get_weekday( ( $wdcount + $week_begins ) % 7 );
2022	}
2023
2024	foreach ( $myweek as $wd ) {
2025	$day_name = $initial ? $wp_locale->get_weekday_initial( $wd ) : $wp_locale->get_weekday_abbrev( $wd );
2026	$wd = esc_attr( $wd );
2027	$calendar_output .= "\n\t\t<th scope=\"col\" title=\"$wd\">$day_name</th>";
2028	}
2029
2030	$calendar_output .= '
2031	</tr>
2032	</thead>
2033
2034	<tfoot>
2035	<tr>';
2036
2037	if ( $previous ) {
2038	$calendar_output .= "\n\t\t".'<td colspan="3" id="prev"><a href="' . get_month_link( $previous->year, $previous->month ) . '">« ' .
2039	$wp_locale->get_month_abbrev( $wp_locale->get_month( $previous->month ) ) .
2040	'</a></td>';
2041	} else {
2042	$calendar_output .= "\n\t\t".'<td colspan="3" id="prev" class="pad"> </td>';
2043	}
2044
2045	$calendar_output .= "\n\t\t".'<td class="pad"> </td>';
2046
2047	if ( $next ) {
2048	$calendar_output .= "\n\t\t".'<td colspan="3" id="next"><a href="' . get_month_link( $next->year, $next->month ) . '">' .
2049	$wp_locale->get_month_abbrev( $wp_locale->get_month( $next->month ) ) .
2050	' »</a></td>';
2051	} else {
2052	$calendar_output .= "\n\t\t".'<td colspan="3" id="next" class="pad"> </td>';
2053	}
2054
2055	$calendar_output .= '
2056	</tr>
2057	</tfoot>
2058
2059	<tbody>
2060	<tr>';
2061
2062	$daywithpost = array();
2063
2064	// Get days with posts
2065	$dayswithposts = $wpdb->get_results("SELECT DISTINCT DAYOFMONTH(post_date)
2066	FROM $wpdb->posts WHERE post_date >= '{$thisyear}-{$thismonth}-01 00:00:00'
2067	AND post_type = 'post' AND post_status = 'publish'
2068	AND post_date <= '{$thisyear}-{$thismonth}-{$last_day} 23:59:59'", ARRAY_N);
2069	if ( $dayswithposts ) {
2070	foreach ( (array) $dayswithposts as $daywith ) {
2071	$daywithpost[] = $daywith[0];
2072	}
2073	}
2074
2075	// See how much we should pad in the beginning
2076	$pad = calendar_week_mod( date( 'w', $unixmonth ) - $week_begins );
2077	if ( 0 != $pad ) {
2078	$calendar_output .= "\n\t\t".'<td colspan="'. esc_attr( $pad ) .'" class="pad"> </td>';
2079	}
2080
2081	$newrow = false;
2082	$daysinmonth = (int) date( 't', $unixmonth );
2083
2084	for ( $day = 1; $day <= $daysinmonth; ++$day ) {
2085	if ( isset($newrow) && $newrow ) {
2086	$calendar_output .= "\n\t</tr>\n\t<tr>\n\t\t";
2087	}
2088	$newrow = false;
2089
2090	if ( $day == gmdate( 'j', $ts ) &&
2091	$thismonth == gmdate( 'm', $ts ) &&
2092	$thisyear == gmdate( 'Y', $ts ) ) {
2093	$calendar_output .= '<td id="today">';
2094	} else {
2095	$calendar_output .= '<td>';
2096	}
2097
2098	if ( in_array( $day, $daywithpost ) ) {
2099	// any posts today?
2100	$date_format = date( _x( 'F j, Y', 'daily archives date format' ), strtotime( "{$thisyear}-{$thismonth}-{$day}" ) );
2101	/* translators: Post calendar label. 1: Date */
2102	$label = sprintf( __( 'Posts published on %s' ), $date_format );
2103	$calendar_output .= sprintf(
2104	'<a href="%s" aria-label="%s">%s</a>',
2105	get_day_link( $thisyear, $thismonth, $day ),
2106	esc_attr( $label ),
2107	$day
2108	);
2109	} else {
2110	$calendar_output .= $day;
2111	}
2112	$calendar_output .= '</td>';
2113
2114	if ( 6 == calendar_week_mod( date( 'w', mktime(0, 0 , 0, $thismonth, $day, $thisyear ) ) - $week_begins ) ) {
2115	$newrow = true;
2116	}
2117	}
2118
2119	$pad = 7 - calendar_week_mod( date( 'w', mktime( 0, 0 , 0, $thismonth, $day, $thisyear ) ) - $week_begins );
2120	if ( $pad != 0 && $pad != 7 ) {
2121	$calendar_output .= "\n\t\t".'<td class="pad" colspan="'. esc_attr( $pad ) .'"> </td>';
2122	}
2123	$calendar_output .= "\n\t</tr>\n\t</tbody>\n\t</table>";
2124
2125	$cache[ $key ] = $calendar_output;
2126	wp_cache_set( 'get_calendar', $cache, 'calendar' );
2127
2128	if ( $echo ) {
2129	/**
2130	* Filters the HTML calendar output.
2131	*
2132	* @since 3.0.0
2133	*
2134	* @param string $calendar_output HTML output of the calendar.
2135	*/
2136	echo apply_filters( 'get_calendar', $calendar_output );
2137	return;
2138	}
2139	/** This filter is documented in wp-includes/general-template.php */
2140	return apply_filters( 'get_calendar', $calendar_output );
2141	}
2142
2143	/**
2144	* Purge the cached results of get_calendar.
2145	*
2146	* @see get_calendar
2147	* @since 2.1.0
2148	*/
2149	function delete_get_calendar_cache() {
2150	wp_cache_delete( 'get_calendar', 'calendar' );
2151	}
2152
2153	/**
2154	* Display all of the allowed tags in HTML format with attributes.
2155	*
2156	* This is useful for displaying in the comment area, which elements and
2157	* attributes are supported. As well as any plugins which want to display it.
2158	*
2159	* @since 1.0.1
2160	*
2161	* @global array $allowedtags
2162	*
2163	* @return string HTML allowed tags entity encoded.
2164	*/
2165	function allowed_tags() {
2166	global $allowedtags;
2167	$allowed = '';
2168	foreach ( (array) $allowedtags as $tag => $attributes ) {
2169	$allowed .= '<'.$tag;
2170	if ( 0 < count($attributes) ) {
2171	foreach ( $attributes as $attribute => $limits ) {
2172	$allowed .= ' '.$attribute.'=""';
2173	}
2174	}
2175	$allowed .= '> ';
2176	}
2177	return htmlentities( $allowed );
2178	}
2179
2180	/*** Date/Time tags ***/
2181
2182	/**
2183	* Outputs the date in iso8601 format for xml files.
2184	*
2185	* @since 1.0.0
2186	*/
2187	function the_date_xml() {
2188	echo mysql2date( 'Y-m-d', get_post()->post_date, false );
2189	}
2190
2191	/**
2192	* Display or Retrieve the date the current post was written (once per date)
2193	*
2194	* Will only output the date if the current post's date is different from the
2195	* previous one output.
2196	*
2197	* i.e. Only one date listing will show per day worth of posts shown in the loop, even if the
2198	* function is called several times for each post.
2199	*
2200	* HTML output can be filtered with 'the_date'.
2201	* Date string output can be filtered with 'get_the_date'.
2202	*
2203	* @since 0.71
2204	*
2205	* @global string\|int\|bool $currentday
2206	* @global string\|int\|bool $previousday
2207	*
2208	* @param string $d Optional. PHP date format defaults to the date_format option if not specified.
2209	* @param string $before Optional. Output before the date.
2210	* @param string $after Optional. Output after the date.
2211	* @param bool $echo Optional, default is display. Whether to echo the date or return it.
2212	* @return string\|void String if retrieving.
2213	*/
2214	function the_date( $d = '', $before = '', $after = '', $echo = true ) {
2215	global $currentday, $previousday;
2216
2217	if ( is_new_day() ) {
2218	$the_date = $before . get_the_date( $d ) . $after;
2219	$previousday = $currentday;
2220
2221	/**
2222	* Filters the date a post was published for display.
2223	*
2224	* @since 0.71
2225	*
2226	* @param string $the_date The formatted date string.
2227	* @param string $d PHP date format. Defaults to 'date_format' option
2228	* if not specified.
2229	* @param string $before HTML output before the date.
2230	* @param string $after HTML output after the date.
2231	*/
2232	$the_date = apply_filters( 'the_date', $the_date, $d, $before, $after );
2233
2234	if ( $echo )
2235	echo $the_date;
2236	else
2237	return $the_date;
2238	}
2239	}
2240
2241	/**
2242	* Retrieve the date on which the post was written.
2243	*
2244	* Unlike the_date() this function will always return the date.
2245	* Modify output with the {@see 'get_the_date'} filter.
2246	*
2247	* @since 3.0.0
2248	*
2249	* @param string $d Optional. PHP date format defaults to the date_format option if not specified.
2250	* @param int\|WP_Post $post Optional. Post ID or WP_Post object. Default current post.
2251	* @return false\|string Date the current post was written. False on failure.
2252	*/
2253	function get_the_date( $d = '', $post = null ) {
2254	$post = get_post( $post );
2255
2256	if ( ! $post ) {
2257	return false;
2258	}
2259
2260	if ( '' == $d ) {
2261	$the_date = mysql2date( get_option( 'date_format' ), $post->post_date );
2262	} else {
2263	$the_date = mysql2date( $d, $post->post_date );
2264	}
2265
2266	/**
2267	* Filters the date a post was published.
2268	*
2269	* @since 3.0.0
2270	*
2271	* @param string $the_date The formatted date.
2272	* @param string $d PHP date format. Defaults to 'date_format' option
2273	* if not specified.
2274	* @param int\|WP_Post $post The post object or ID.
2275	*/
2276	return apply_filters( 'get_the_date', $the_date, $d, $post );
2277	}
2278
2279	/**
2280	* Display the date on which the post was last modified.
2281	*
2282	* @since 2.1.0
2283	*
2284	* @param string $d Optional. PHP date format defaults to the date_format option if not specified.
2285	* @param string $before Optional. Output before the date.
2286	* @param string $after Optional. Output after the date.
2287	* @param bool $echo Optional, default is display. Whether to echo the date or return it.
2288	* @return string\|void String if retrieving.
2289	*/
2290	function the_modified_date( $d = '', $before = '', $after = '', $echo = true ) {
2291	$the_modified_date = $before . get_the_modified_date($d) . $after;
2292
2293	/**
2294	* Filters the date a post was last modified for display.
2295	*
2296	* @since 2.1.0
2297	*
2298	* @param string $the_modified_date The last modified date.
2299	* @param string $d PHP date format. Defaults to 'date_format' option
2300	* if not specified.
2301	* @param string $before HTML output before the date.
2302	* @param string $after HTML output after the date.
2303	*/
2304	$the_modified_date = apply_filters( 'the_modified_date', $the_modified_date, $d, $before, $after );
2305
2306	if ( $echo )
2307	echo $the_modified_date;
2308	else
2309	return $the_modified_date;
2310
2311	}
2312
2313	/**
2314	* Retrieve the date on which the post was last modified.
2315	*
2316	* @since 2.1.0
2317	* @since 4.6.0 Added the `$post` parameter.
2318	*
2319	* @param string $d Optional. PHP date format defaults to the date_format option if not specified.
2320	* @param int\|WP_Post $post Optional. Post ID or WP_Post object. Default current post.
2321	* @return false\|string Date the current post was modified. False on failure.
2322	*/
2323	function get_the_modified_date( $d = '', $post = null ) {
2324	$post = get_post( $post );
2325
2326	if ( ! $post ) {
2327	// For backward compatibility, failures go through the filter below.
2328	$the_time = false;
2329	} elseif ( empty( $d ) ) {
2330	$the_time = get_post_modified_time( get_option( 'date_format' ), false, $post, true );
2331	} else {
2332	$the_time = get_post_modified_time( $d, false, $post, true );
2333	}
2334
2335	/**
2336	* Filters the date a post was last modified.
2337	*
2338	* @since 2.1.0
2339	* @since 4.6.0 Added the `$post` parameter.
2340	*
2341	* @param string\|bool $the_time The formatted date or false if no post is found.
2342	* @param string $d PHP date format. Defaults to value specified in
2343	* 'date_format' option.
2344	* @param WP_Post\|null $post WP_Post object or null if no post is found.
2345	*/
2346	return apply_filters( 'get_the_modified_date', $the_time, $d, $post );
2347	}
2348
2349	/**
2350	* Display the time at which the post was written.
2351	*
2352	* @since 0.71
2353	*
2354	* @param string $d Either 'G', 'U', or php date format.
2355	*/
2356	function the_time( $d = '' ) {
2357	/**
2358	* Filters the time a post was written for display.
2359	*
2360	* @since 0.71
2361	*
2362	* @param string $get_the_time The formatted time.
2363	* @param string $d The time format. Accepts 'G', 'U',
2364	* or php date format.
2365	*/
2366	echo apply_filters( 'the_time', get_the_time( $d ), $d );
2367	}
2368
2369	/**
2370	* Retrieve the time at which the post was written.
2371	*
2372	* @since 1.5.0
2373	*
2374	* @param string $d Optional. Format to use for retrieving the time the post
2375	* was written. Either 'G', 'U', or php date format defaults
2376	* to the value specified in the time_format option. Default empty.
2377	* @param int\|WP_Post $post WP_Post object or ID. Default is global $post object.
2378	* @return string\|int\|false Formatted date string or Unix timestamp if `$id` is 'U' or 'G'. False on failure.
2379	*/
2380	function get_the_time( $d = '', $post = null ) {
2381	$post = get_post($post);
2382
2383	if ( ! $post ) {
2384	return false;
2385	}
2386
2387	if ( '' == $d )
2388	$the_time = get_post_time(get_option('time_format'), false, $post, true);
2389	else
2390	$the_time = get_post_time($d, false, $post, true);
2391
2392	/**
2393	* Filters the time a post was written.
2394	*
2395	* @since 1.5.0
2396	*
2397	* @param string $the_time The formatted time.
2398	* @param string $d Format to use for retrieving the time the post was written.
2399	* Accepts 'G', 'U', or php date format value specified
2400	* in 'time_format' option. Default empty.
2401	* @param int\|WP_Post $post WP_Post object or ID.
2402	*/
2403	return apply_filters( 'get_the_time', $the_time, $d, $post );
2404	}
2405
2406	/**
2407	* Retrieve the time at which the post was written.
2408	*
2409	* @since 2.0.0
2410	*
2411	* @param string $d Optional. Format to use for retrieving the time the post
2412	* was written. Either 'G', 'U', or php date format. Default 'U'.
2413	* @param bool $gmt Optional. Whether to retrieve the GMT time. Default false.
2414	* @param int\|WP_Post $post WP_Post object or ID. Default is global $post object.
2415	* @param bool $translate Whether to translate the time string. Default false.
2416	* @return string\|int\|false Formatted date string or Unix timestamp if `$id` is 'U' or 'G'. False on failure.
2417	*/
2418	function get_post_time( $d = 'U', $gmt = false, $post = null, $translate = false ) {
2419	$post = get_post($post);
2420
2421	if ( ! $post ) {
2422	return false;
2423	}
2424
2425	if ( $gmt )
2426	$time = $post->post_date_gmt;
2427	else
2428	$time = $post->post_date;
2429
2430	$time = mysql2date($d, $time, $translate);
2431
2432	/**
2433	* Filters the localized time a post was written.
2434	*
2435	* @since 2.6.0
2436	*
2437	* @param string $time The formatted time.
2438	* @param string $d Format to use for retrieving the time the post was written.
2439	* Accepts 'G', 'U', or php date format. Default 'U'.
2440	* @param bool $gmt Whether to retrieve the GMT time. Default false.
2441	*/
2442	return apply_filters( 'get_post_time', $time, $d, $gmt );
2443	}
2444
2445	/**
2446	* Display the time at which the post was last modified.
2447	*
2448	* @since 2.0.0
2449	*
2450	* @param string $d Optional Either 'G', 'U', or php date format defaults to the value specified in the time_format option.
2451	*/
2452	function the_modified_time($d = '') {
2453	/**
2454	* Filters the localized time a post was last modified, for display.
2455	*
2456	* @since 2.0.0
2457	*
2458	* @param string $get_the_modified_time The formatted time.
2459	* @param string $d The time format. Accepts 'G', 'U',
2460	* or php date format. Defaults to value
2461	* specified in 'time_format' option.
2462	*/
2463	echo apply_filters( 'the_modified_time', get_the_modified_time($d), $d );
2464	}
2465
2466	/**
2467	* Retrieve the time at which the post was last modified.
2468	*
2469	* @since 2.0.0
2470	* @since 4.6.0 Added the `$post` parameter.
2471	*
2472	* @param string $d Optional. Format to use for retrieving the time the post
2473	* was modified. Either 'G', 'U', or php date format defaults
2474	* to the value specified in the time_format option. Default empty.
2475	* @param int\|WP_Post $post Optional. Post ID or WP_Post object. Default current post.
2476	* @return false\|string Formatted date string or Unix timestamp. False on failure.
2477	*/
2478	function get_the_modified_time( $d = '', $post = null ) {
2479	$post = get_post( $post );
2480
2481	if ( ! $post ) {
2482	// For backward compatibility, failures go through the filter below.
2483	$the_time = false;
2484	} elseif ( empty( $d ) ) {
2485	$the_time = get_post_modified_time( get_option( 'time_format' ), false, $post, true );
2486	} else {
2487	$the_time = get_post_modified_time( $d, false, $post, true );
2488	}
2489
2490	/**
2491	* Filters the localized time a post was last modified.
2492	*
2493	* @since 2.0.0
2494	* @since 4.6.0 Added the `$post` parameter.
2495	*
2496	* @param string\|bool $the_time The formatted time or false if no post is found.
2497	* @param string $d Format to use for retrieving the time the post was
2498	* written. Accepts 'G', 'U', or php date format. Defaults
2499	* to value specified in 'time_format' option.
2500	* @param WP_Post\|null $post WP_Post object or null if no post is found.
2501	*/
2502	return apply_filters( 'get_the_modified_time', $the_time, $d, $post );
2503	}
2504
2505	/**
2506	* Retrieve the time at which the post was last modified.
2507	*
2508	* @since 2.0.0
2509	*
2510	* @param string $d Optional. Format to use for retrieving the time the post
2511	* was modified. Either 'G', 'U', or php date format. Default 'U'.
2512	* @param bool $gmt Optional. Whether to retrieve the GMT time. Default false.
2513	* @param int\|WP_Post $post WP_Post object or ID. Default is global $post object.
2514	* @param bool $translate Whether to translate the time string. Default false.
2515	* @return string\|int\|false Formatted date string or Unix timestamp if `$id` is 'U' or 'G'. False on failure.
2516	*/
2517	function get_post_modified_time( $d = 'U', $gmt = false, $post = null, $translate = false ) {
2518	$post = get_post($post);
2519
2520	if ( ! $post ) {
2521	return false;
2522	}
2523
2524	if ( $gmt )
2525	$time = $post->post_modified_gmt;
2526	else
2527	$time = $post->post_modified;
2528	$time = mysql2date($d, $time, $translate);
2529
2530	/**
2531	* Filters the localized time a post was last modified.
2532	*
2533	* @since 2.8.0
2534	*
2535	* @param string $time The formatted time.
2536	* @param string $d The date format. Accepts 'G', 'U', or php date format. Default 'U'.
2537	* @param bool $gmt Whether to return the GMT time. Default false.
2538	*/
2539	return apply_filters( 'get_post_modified_time', $time, $d, $gmt );
2540	}
2541
2542	/**
2543	* Display the weekday on which the post was written.
2544	*
2545	* @since 0.71
2546	*
2547	* @global WP_Locale $wp_locale
2548	*/
2549	function the_weekday() {
2550	global $wp_locale;
2551	$the_weekday = $wp_locale->get_weekday( mysql2date( 'w', get_post()->post_date, false ) );
2552
2553	/**
2554	* Filters the weekday on which the post was written, for display.
2555	*
2556	* @since 0.71
2557	*
2558	* @param string $the_weekday
2559	*/
2560	echo apply_filters( 'the_weekday', $the_weekday );
2561	}
2562
2563	/**
2564	* Display the weekday on which the post was written.
2565	*
2566	* Will only output the weekday if the current post's weekday is different from
2567	* the previous one output.
2568	*
2569	* @since 0.71
2570	*
2571	* @global WP_Locale $wp_locale
2572	* @global string\|int\|bool $currentday
2573	* @global string\|int\|bool $previousweekday
2574	*
2575	* @param string $before Optional Output before the date.
2576	* @param string $after Optional Output after the date.
2577	*/
2578	function the_weekday_date($before='',$after='') {
2579	global $wp_locale, $currentday, $previousweekday;
2580	$the_weekday_date = '';
2581	if ( $currentday != $previousweekday ) {
2582	$the_weekday_date .= $before;
2583	$the_weekday_date .= $wp_locale->get_weekday( mysql2date( 'w', get_post()->post_date, false ) );
2584	$the_weekday_date .= $after;
2585	$previousweekday = $currentday;
2586	}
2587
2588	/**
2589	* Filters the localized date on which the post was written, for display.
2590	*
2591	* @since 0.71
2592	*
2593	* @param string $the_weekday_date
2594	* @param string $before The HTML to output before the date.
2595	* @param string $after The HTML to output after the date.
2596	*/
2597	$the_weekday_date = apply_filters( 'the_weekday_date', $the_weekday_date, $before, $after );
2598	echo $the_weekday_date;
2599	}
2600
2601	/**
2602	* Fire the wp_head action.
2603	*
2604	* See {@see 'wp_head'}.
2605	*
2606	* @since 1.2.0
2607	*/
2608	function wp_head() {
2609	/**
2610	* Prints scripts or data in the head tag on the front end.
2611	*
2612	* @since 1.5.0
2613	*/
2614	do_action( 'wp_head' );
2615	}
2616
2617	/**
2618	* Fire the wp_footer action.
2619	*
2620	* See {@see 'wp_footer'}.
2621	*
2622	* @since 1.5.1
2623	*/
2624	function wp_footer() {
2625	/**
2626	* Prints scripts or data before the closing body tag on the front end.
2627	*
2628	* @since 1.5.1
2629	*/
2630	do_action( 'wp_footer' );
2631	}
2632
2633	/**
2634	* Display the links to the general feeds.
2635	*
2636	* @since 2.8.0
2637	*
2638	* @param array $args Optional arguments.
2639	*/
2640	function feed_links( $args = array() ) {
2641	if ( !current_theme_supports('automatic-feed-links') )
2642	return;
2643
2644	$defaults = array(
2645	/* translators: Separator between blog name and feed type in feed links */
2646	'separator' => _x('»', 'feed link'),
2647	/* translators: 1: blog title, 2: separator (raquo) */
2648	'feedtitle' => __('%1$s %2$s Feed'),
2649	/* translators: 1: blog title, 2: separator (raquo) */
2650	'comstitle' => __('%1$s %2$s Comments Feed'),
2651	);
2652
2653	$args = wp_parse_args( $args, $defaults );
2654
2655	/**
2656	* Filters whether to display the posts feed link.
2657	*
2658	* @since 4.4.0
2659	*
2660	* @param bool $show Whether to display the posts feed link. Default true.
2661	*/
2662	if ( apply_filters( 'feed_links_show_posts_feed', true ) ) {
2663	echo '<link rel="alternate" type="' . feed_content_type() . '" title="' . esc_attr( sprintf( $args['feedtitle'], get_bloginfo( 'name' ), $args['separator'] ) ) . '" href="' . esc_url( get_feed_link() ) . "\" />\n";
2664	}
2665
2666	/**
2667	* Filters whether to display the comments feed link.
2668	*
2669	* @since 4.4.0
2670	*
2671	* @param bool $show Whether to display the comments feed link. Default true.
2672	*/
2673	if ( apply_filters( 'feed_links_show_comments_feed', true ) ) {
2674	echo '<link rel="alternate" type="' . feed_content_type() . '" title="' . esc_attr( sprintf( $args['comstitle'], get_bloginfo( 'name' ), $args['separator'] ) ) . '" href="' . esc_url( get_feed_link( 'comments_' . get_default_feed() ) ) . "\" />\n";
2675	}
2676	}
2677
2678	/**
2679	* Display the links to the extra feeds such as category feeds.
2680	*
2681	* @since 2.8.0
2682	*
2683	* @param array $args Optional arguments.
2684	*/
2685	function feed_links_extra( $args = array() ) {
2686	$defaults = array(
2687	/* translators: Separator between blog name and feed type in feed links */
2688	'separator' => _x('»', 'feed link'),
2689	/* translators: 1: blog name, 2: separator(raquo), 3: post title */
2690	'singletitle' => __('%1$s %2$s %3$s Comments Feed'),
2691	/* translators: 1: blog name, 2: separator(raquo), 3: category name */
2692	'cattitle' => __('%1$s %2$s %3$s Category Feed'),
2693	/* translators: 1: blog name, 2: separator(raquo), 3: tag name */
2694	'tagtitle' => __('%1$s %2$s %3$s Tag Feed'),
2695	/* translators: 1: blog name, 2: separator(raquo), 3: term name, 4: taxonomy singular name */
2696	'taxtitle' => __('%1$s %2$s %3$s %4$s Feed'),
2697	/* translators: 1: blog name, 2: separator(raquo), 3: author name */
2698	'authortitle' => __('%1$s %2$s Posts by %3$s Feed'),
2699	/* translators: 1: blog name, 2: separator(raquo), 3: search phrase */
2700	'searchtitle' => __('%1$s %2$s Search Results for “%3$s” Feed'),
2701	/* translators: 1: blog name, 2: separator(raquo), 3: post type name */
2702	'posttypetitle' => __('%1$s %2$s %3$s Feed'),
2703	);
2704
2705	$args = wp_parse_args( $args, $defaults );
2706
2707	if ( is_singular() ) {
2708	$id = 0;
2709	$post = get_post( $id );
2710
2711	if ( comments_open() \|\| pings_open() \|\| $post->comment_count > 0 ) {
2712	$title = sprintf( $args['singletitle'], get_bloginfo('name'), $args['separator'], the_title_attribute( array( 'echo' => false ) ) );
2713	$href = get_post_comments_feed_link( $post->ID );
2714	}
2715	} elseif ( is_post_type_archive() ) {
2716	$post_type = get_query_var( 'post_type' );
2717	if ( is_array( $post_type ) )
2718	$post_type = reset( $post_type );
2719
2720	$post_type_obj = get_post_type_object( $post_type );
2721	$title = sprintf( $args['posttypetitle'], get_bloginfo( 'name' ), $args['separator'], $post_type_obj->labels->name );
2722	$href = get_post_type_archive_feed_link( $post_type_obj->name );
2723	} elseif ( is_category() ) {
2724	$term = get_queried_object();
2725
2726	if ( $term ) {
2727	$title = sprintf( $args['cattitle'], get_bloginfo('name'), $args['separator'], $term->name );
2728	$href = get_category_feed_link( $term->term_id );
2729	}
2730	} elseif ( is_tag() ) {
2731	$term = get_queried_object();
2732
2733	if ( $term ) {
2734	$title = sprintf( $args['tagtitle'], get_bloginfo('name'), $args['separator'], $term->name );
2735	$href = get_tag_feed_link( $term->term_id );
2736	}
2737	} elseif ( is_tax() ) {
2738	$term = get_queried_object();
2739	$tax = get_taxonomy( $term->taxonomy );
2740	$title = sprintf( $args['taxtitle'], get_bloginfo('name'), $args['separator'], $term->name, $tax->labels->singular_name );
2741	$href = get_term_feed_link( $term->term_id, $term->taxonomy );
2742	} elseif ( is_author() ) {
2743	$author_id = intval( get_query_var('author') );
2744
2745	$title = sprintf( $args['authortitle'], get_bloginfo('name'), $args['separator'], get_the_author_meta( 'display_name', $author_id ) );
2746	$href = get_author_feed_link( $author_id );
2747	} elseif ( is_search() ) {
2748	$title = sprintf( $args['searchtitle'], get_bloginfo('name'), $args['separator'], get_search_query( false ) );
2749	$href = get_search_feed_link();
2750	} elseif ( is_post_type_archive() ) {
2751	$title = sprintf( $args['posttypetitle'], get_bloginfo('name'), $args['separator'], post_type_archive_title( '', false ) );
2752	$post_type_obj = get_queried_object();
2753	if ( $post_type_obj )
2754	$href = get_post_type_archive_feed_link( $post_type_obj->name );
2755	}
2756
2757	if ( isset($title) && isset($href) )
2758	echo '<link rel="alternate" type="' . feed_content_type() . '" title="' . esc_attr( $title ) . '" href="' . esc_url( $href ) . '" />' . "\n";
2759	}
2760
2761	/**
2762	* Display the link to the Really Simple Discovery service endpoint.
2763	*
2764	* @link http://archipelago.phrasewise.com/rsd
2765	* @since 2.0.0
2766	*/
2767	function rsd_link() {
2768	echo '<link rel="EditURI" type="application/rsd+xml" title="RSD" href="' . esc_url( site_url( 'xmlrpc.php?rsd', 'rpc' ) ) . '" />' . "\n";
2769	}
2770
2771	/**
2772	* Display the link to the Windows Live Writer manifest file.
2773	*
2774	* @link https://msdn.microsoft.com/en-us/library/bb463265.aspx
2775	* @since 2.3.1
2776	*/
2777	function wlwmanifest_link() {
2778	echo '<link rel="wlwmanifest" type="application/wlwmanifest+xml" href="',
2779	includes_url( 'wlwmanifest.xml' ), '" /> ', "\n";
2780	}
2781
2782	/**
2783	* Displays a noindex meta tag if required by the blog configuration.
2784	*
2785	* If a blog is marked as not being public then the noindex meta tag will be
2786	* output to tell web robots not to index the page content. Add this to the
2787	* {@see 'wp_head'} action.
2788	*
2789	* Typical usage is as a {@see 'wp_head'} callback:
2790	*
2791	* add_action( 'wp_head', 'noindex' );
2792	*
2793	* @see wp_no_robots
2794	*
2795	* @since 2.1.0
2796	*/
2797	function noindex() {
2798	// If the blog is not public, tell robots to go away.
2799	if ( '0' == get_option('blog_public') )
2800	wp_no_robots();
2801	}
2802
2803	/**
2804	* Display a noindex meta tag.
2805	*
2806	* Outputs a noindex meta tag that tells web robots not to index the page content.
2807	* Typical usage is as a wp_head callback. add_action( 'wp_head', 'wp_no_robots' );
2808	*
2809	* @since 3.3.0
2810	*/
2811	function wp_no_robots() {
2812	echo "<meta name='robots' content='noindex,follow' />\n";
2813	}
2814
2815	/**
2816	* Display site icon meta tags.
2817	*
2818	* @since 4.3.0
2819	*
2820	* @link https://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#rel-icon HTML5 specification link icon.
2821	*/
2822	function wp_site_icon() {
2823	if ( ! has_site_icon() && ! is_customize_preview() ) {
2824	return;
2825	}
2826
2827	$meta_tags = array();
2828	$icon_32 = get_site_icon_url( 32 );
2829	if ( empty( $icon_32 ) && is_customize_preview() ) {
2830	$icon_32 = '/favicon.ico'; // Serve default favicon URL in customizer so element can be updated for preview.
2831	}
2832	if ( $icon_32 ) {
2833	$meta_tags[] = sprintf( '<link rel="icon" href="%s" sizes="32x32" />', esc_url( $icon_32 ) );
2834	}
2835	$icon_192 = get_site_icon_url( 192 );
2836	if ( $icon_192 ) {
2837	$meta_tags[] = sprintf( '<link rel="icon" href="%s" sizes="192x192" />', esc_url( $icon_192 ) );
2838	}
2839	$icon_180 = get_site_icon_url( 180 );
2840	if ( $icon_180 ) {
2841	$meta_tags[] = sprintf( '<link rel="apple-touch-icon-precomposed" href="%s" />', esc_url( $icon_180 ) );
2842	}
2843	$icon_270 = get_site_icon_url( 270 );
2844	if ( $icon_270 ) {
2845	$meta_tags[] = sprintf( '<meta name="msapplication-TileImage" content="%s" />', esc_url( $icon_270 ) );
2846	}
2847
2848	/**
2849	* Filters the site icon meta tags, so Plugins can add their own.
2850	*
2851	* @since 4.3.0
2852	*
2853	* @param array $meta_tags Site Icon meta elements.
2854	*/
2855	$meta_tags = apply_filters( 'site_icon_meta_tags', $meta_tags );
2856	$meta_tags = array_filter( $meta_tags );
2857
2858	foreach ( $meta_tags as $meta_tag ) {
2859	echo "$meta_tag\n";
2860	}
2861	}
2862
2863	/**
2864	* Prints resource hints to browsers for pre-fetching, pre-rendering
2865	* and pre-connecting to web sites.
2866	*
2867	* Gives hints to browsers to prefetch specific pages or render them
2868	* in the background, to perform DNS lookups or to begin the connection
2869	* handshake (DNS, TCP, TLS) in the background.
2870	*
2871	* These performance improving indicators work by using `<link rel"…">`.
2872	*
2873	* @since 4.6.0
2874	*/
2875	function wp_resource_hints() {
2876	$hints = array(
2877	'dns-prefetch' => wp_dependencies_unique_hosts(),
2878	'preconnect' => array(),
2879	'prefetch' => array(),
2880	'prerender' => array(),
2881	);
2882
2883	/*
2884	* Add DNS prefetch for the Emoji CDN.
2885	* The path is removed in the foreach loop below.
2886	*/
2887	/** This filter is documented in wp-includes/formatting.php */
2888	$hints['dns-prefetch'][] = apply_filters( 'emoji_svg_url', 'https://s.w.org/images/core/emoji/2.4/svg/' );
2889
2890	foreach ( $hints as $relation_type => $urls ) {
2891	$unique_urls = array();
2892
2893	/**
2894	* Filters domains and URLs for resource hints of relation type.
2895	*
2896	* @since 4.6.0
2897	*
2898	* @param array $urls URLs to print for resource hints.
2899	* @param string $relation_type The relation type the URLs are printed for, e.g. 'preconnect' or 'prerender'.
2900	*/
2901	$urls = apply_filters( 'wp_resource_hints', $urls, $relation_type );
2902
2903	foreach ( $urls as $key => $url ) {
2904	$atts = array();
2905
2906	if ( is_array( $url ) ) {
2907	if ( isset( $url['href'] ) ) {
2908	$atts = $url;
2909	$url = $url['href'];
2910	} else {
2911	continue;
2912	}
2913	}
2914
2915	$url = esc_url( $url, array( 'http', 'https' ) );
2916
2917	if ( ! $url ) {
2918	continue;
2919	}
2920
2921	if ( isset( $unique_urls[ $url ] ) ) {
2922	continue;
2923	}
2924
2925	if ( in_array( $relation_type, array( 'preconnect', 'dns-prefetch' ) ) ) {
2926	$parsed = wp_parse_url( $url );
2927
2928	if ( empty( $parsed['host'] ) ) {
2929	continue;
2930	}
2931
2932	if ( 'preconnect' === $relation_type && ! empty( $parsed['scheme'] ) ) {
2933	$url = $parsed['scheme'] . '://' . $parsed['host'];
2934	} else {
2935	// Use protocol-relative URLs for dns-prefetch or if scheme is missing.
2936	$url = '//' . $parsed['host'];
2937	}
2938	}
2939
2940	$atts['rel'] = $relation_type;
2941	$atts['href'] = $url;
2942
2943	$unique_urls[ $url ] = $atts;
2944	}
2945
2946	foreach ( $unique_urls as $atts ) {
2947	$html = '';
2948
2949	foreach ( $atts as $attr => $value ) {
2950	if ( ! is_scalar( $value ) \|\|
2951	( ! in_array( $attr, array( 'as', 'crossorigin', 'href', 'pr', 'rel', 'type' ), true ) && ! is_numeric( $attr ))
2952	) {
2953	continue;
2954	}
2955
2956	$value = ( 'href' === $attr ) ? esc_url( $value ) : esc_attr( $value );
2957
2958	if ( ! is_string( $attr ) ) {
2959	$html .= " $value";
2960	} else {
2961	$html .= " $attr='$value'";
2962	}
2963	}
2964
2965	$html = trim( $html );
2966
2967	echo "<link $html />\n";
2968	}
2969	}
2970	}
2971
2972	/**
2973	* Retrieves a list of unique hosts of all enqueued scripts and styles.
2974	*
2975	* @since 4.6.0
2976	*
2977	* @return array A list of unique hosts of enqueued scripts and styles.
2978	*/
2979	function wp_dependencies_unique_hosts() {
2980	global $wp_scripts, $wp_styles;
2981
2982	$unique_hosts = array();
2983
2984	foreach ( array( $wp_scripts, $wp_styles ) as $dependencies ) {
2985	if ( $dependencies instanceof WP_Dependencies && ! empty( $dependencies->queue ) ) {
2986	foreach ( $dependencies->queue as $handle ) {
2987	if ( ! isset( $dependencies->registered[ $handle ] ) ) {
2988	continue;
2989	}
2990
2991	/* @var _WP_Dependency $dependency */
2992	$dependency = $dependencies->registered[ $handle ];
2993	$parsed = wp_parse_url( $dependency->src );
2994
2995	if ( ! empty( $parsed['host'] ) && ! in_array( $parsed['host'], $unique_hosts ) && $parsed['host'] !== $_SERVER['SERVER_NAME'] ) {
2996	$unique_hosts[] = $parsed['host'];
2997	}
2998	}
2999	}
3000	}
3001
3002	return $unique_hosts;
3003	}
3004
3005	/**
3006	* Whether the user can access the visual editor.
3007	*
3008	* Checks if the user can access the visual editor and that it's supported by the user's browser.
3009	*
3010	* @since 2.0.0
3011	*
3012	* @global bool $wp_rich_edit Whether the user can access the visual editor.
3013	* @global bool $is_gecko Whether the browser is Gecko-based.
3014	* @global bool $is_opera Whether the browser is Opera.
3015	* @global bool $is_safari Whether the browser is Safari.
3016	* @global bool $is_chrome Whether the browser is Chrome.
3017	* @global bool $is_IE Whether the browser is Internet Explorer.
3018	* @global bool $is_edge Whether the browser is Microsoft Edge.
3019	*
3020	* @return bool True if the user can access the visual editor, false otherwise.
3021	*/
3022	function user_can_richedit() {
3023	global $wp_rich_edit, $is_gecko, $is_opera, $is_safari, $is_chrome, $is_IE, $is_edge;
3024
3025	if ( !isset($wp_rich_edit) ) {
3026	$wp_rich_edit = false;
3027
3028	if ( get_user_option( 'rich_editing' ) == 'true' \|\| ! is_user_logged_in() ) { // default to 'true' for logged out users
3029	if ( $is_safari ) {
3030	$wp_rich_edit = ! wp_is_mobile() \|\| ( preg_match( '!AppleWebKit/(\d+)!', $_SERVER['HTTP_USER_AGENT'], $match ) && intval( $match[1] ) >= 534 );
3031	} elseif ( $is_IE ) {
3032	$wp_rich_edit = ( strpos( $_SERVER['HTTP_USER_AGENT'], 'Trident/7.0;' ) !== false );
3033	} elseif ( $is_gecko \|\| $is_chrome \|\| $is_edge \|\| ( $is_opera && !wp_is_mobile() ) ) {
3034	$wp_rich_edit = true;
3035	}
3036	}
3037	}
3038
3039	/**
3040	* Filters whether the user can access the visual editor.
3041	*
3042	* @since 2.1.0
3043	*
3044	* @param bool $wp_rich_edit Whether the user can access the visual editor.
3045	*/
3046	return apply_filters( 'user_can_richedit', $wp_rich_edit );
3047	}
3048
3049	/**
3050	* Find out which editor should be displayed by default.
3051	*
3052	* Works out which of the two editors to display as the current editor for a
3053	* user. The 'html' setting is for the "Text" editor tab.
3054	*
3055	* @since 2.5.0
3056	*
3057	* @return string Either 'tinymce', or 'html', or 'test'
3058	*/
3059	function wp_default_editor() {
3060	$r = user_can_richedit() ? 'tinymce' : 'html'; // defaults
3061	if ( wp_get_current_user() ) { // look for cookie
3062	$ed = get_user_setting('editor', 'tinymce');
3063	$r = ( in_array($ed, array('tinymce', 'html', 'test') ) ) ? $ed : $r;
3064	}
3065
3066	/**
3067	* Filters which editor should be displayed by default.
3068	*
3069	* @since 2.5.0
3070	*
3071	* @param string $r Which editor should be displayed by default. Either 'tinymce', 'html', or 'test'.
3072	*/
3073	return apply_filters( 'wp_default_editor', $r );
3074	}
3075
3076	/**
3077	* Renders an editor.
3078	*
3079	* Using this function is the proper way to output all needed components for both TinyMCE and Quicktags.
3080	* _WP_Editors should not be used directly. See https://core.trac.wordpress.org/ticket/17144.
3081	*
3082	* NOTE: Once initialized the TinyMCE editor cannot be safely moved in the DOM. For that reason
3083	* running wp_editor() inside of a meta box is not a good idea unless only Quicktags is used.
3084	* On the post edit screen several actions can be used to include additional editors
3085	* containing TinyMCE: 'edit_page_form', 'edit_form_advanced' and 'dbx_post_sidebar'.
3086	* See https://core.trac.wordpress.org/ticket/19173 for more information.
3087	*
3088	* @see _WP_Editors::editor()
3089	* @since 3.3.0
3090	*
3091	* @param string $content Initial content for the editor.
3092	* @param string $editor_id HTML ID attribute value for the textarea and TinyMCE. Can only be /[a-z]+/.
3093	* @param array $settings See _WP_Editors::editor().
3094	*/
3095	function wp_editor( $content, $editor_id, $settings = array() ) {
3096	if ( ! class_exists( '_WP_Editors', false ) )
3097	require( ABSPATH . WPINC . '/class-wp-editor.php' );
3098	_WP_Editors::editor($content, $editor_id, $settings);
3099	}
3100
3101	/**
3102	* Outputs the editor scripts, stylesheets, and default settings.
3103	*
3104	* The editor can be initialized when needed after page load.
3105	* See wp.editor.initialize() in wp-admin/js/editor.js for initialization options.
3106	*
3107	* @uses _WP_Editors
3108	* @since 4.8.0
3109	*/
3110	function wp_enqueue_editor() {
3111	if ( ! class_exists( '_WP_Editors', false ) ) {
3112	require( ABSPATH . WPINC . '/class-wp-editor.php' );
3113	}
3114
3115	_WP_Editors::enqueue_default_editor();
3116	}
3117
3118	/**
3119	* Enqueue assets needed by the code editor for the given settings.
3120	*
3121	* @since 4.9.0
3122	*
3123	* @see wp_enqueue_editor()
3124	* @see _WP_Editors::parse_settings()
3125	* @param array $args {
3126	* Args.
3127	*
3128	* @type string $type The MIME type of the file to be edited.
3129	* @type string $file Filename to be edited. Extension is used to sniff the type. Can be supplied as alternative to `$type` param.
3130	* @type WP_Theme $theme Theme being edited when on theme editor.
3131	* @type string $plugin Plugin being edited when on plugin editor.
3132	* @type array $codemirror Additional CodeMirror setting overrides.
3133	* @type array $csslint CSSLint rule overrides.
3134	* @type array $jshint JSHint rule overrides.
3135	* @type array $htmlhint JSHint rule overrides.
3136	* }
3137	* @returns array\|false Settings for the enqueued code editor, or false if the editor was not enqueued .
3138	*/
3139	function wp_enqueue_code_editor( $args ) {
3140	if ( is_user_logged_in() && 'false' === wp_get_current_user()->syntax_highlighting ) {
3141	return false;
3142	}
3143
3144	$settings = array(
3145	'codemirror' => array(
3146	'indentUnit' => 4,
3147	'indentWithTabs' => true,
3148	'inputStyle' => 'contenteditable',
3149	'lineNumbers' => true,
3150	'lineWrapping' => true,
3151	'styleActiveLine' => true,
3152	'continueComments' => true,
3153	'extraKeys' => array(
3154	'Ctrl-Space' => 'autocomplete',
3155	'Ctrl-/' => 'toggleComment',
3156	'Cmd-/' => 'toggleComment',
3157	'Alt-F' => 'findPersistent',
3158	'Ctrl-F' => 'findPersistent',
3159	'Cmd-F' => 'findPersistent',
3160	),
3161	'direction' => 'ltr', // Code is shown in LTR even in RTL languages.
3162	'gutters' => array(),
3163	),
3164	'csslint' => array(
3165	'errors' => true, // Parsing errors.
3166	'box-model' => true,
3167	'display-property-grouping' => true,
3168	'duplicate-properties' => true,
3169	'known-properties' => true,
3170	'outline-none' => true,
3171	),
3172	'jshint' => array(
3173	// The following are copied from <https://github.com/WordPress/wordpress-develop/blob/4.8.1/.jshintrc>.
3174	'boss' => true,
3175	'curly' => true,
3176	'eqeqeq' => true,
3177	'eqnull' => true,
3178	'es3' => true,
3179	'expr' => true,
3180	'immed' => true,
3181	'noarg' => true,
3182	'nonbsp' => true,
3183	'onevar' => true,
3184	'quotmark' => 'single',
3185	'trailing' => true,
3186	'undef' => true,
3187	'unused' => true,
3188
3189	'browser' => true,
3190
3191	'globals' => array(
3192	'_' => false,
3193	'Backbone' => false,
3194	'jQuery' => false,
3195	'JSON' => false,
3196	'wp' => false,
3197	),
3198	),
3199	'htmlhint' => array(
3200	'tagname-lowercase' => true,
3201	'attr-lowercase' => true,
3202	'attr-value-double-quotes' => false,
3203	'doctype-first' => false,
3204	'tag-pair' => true,
3205	'spec-char-escape' => true,
3206	'id-unique' => true,
3207	'src-not-empty' => true,
3208	'attr-no-duplication' => true,
3209	'alt-require' => true,
3210	'space-tab-mixed-disabled' => 'tab',
3211	'attr-unsafe-chars' => true,
3212	),
3213	);
3214
3215	$type = '';
3216	if ( isset( $args['type'] ) ) {
3217	$type = $args['type'];
3218
3219	// Remap MIME types to ones that CodeMirror modes will recognize.
3220	if ( 'application/x-patch' === $type \|\| 'text/x-patch' === $type ) {
3221	$type = 'text/x-diff';
3222	}
3223	} elseif ( isset( $args['file'] ) && false !== strpos( basename( $args['file'] ), '.' ) ) {
3224	$extension = strtolower( pathinfo( $args['file'], PATHINFO_EXTENSION ) );
3225	foreach ( wp_get_mime_types() as $exts => $mime ) {
3226	if ( preg_match( '!^(' . $exts . ')$!i', $extension ) ) {
3227	$type = $mime;
3228	break;
3229	}
3230	}
3231
3232	// Supply any types that are not matched by wp_get_mime_types().
3233	if ( empty( $type ) ) {
3234	switch ( $extension ) {
3235	case 'conf':
3236	$type = 'text/nginx';
3237	break;
3238	case 'css':
3239	$type = 'text/css';
3240	break;
3241	case 'diff':
3242	case 'patch':
3243	$type = 'text/x-diff';
3244	break;
3245	case 'html':
3246	case 'htm':
3247	$type = 'text/html';
3248	break;
3249	case 'http':
3250	$type = 'message/http';
3251	break;
3252	case 'js':
3253	$type = 'text/javascript';
3254	break;
3255	case 'json':
3256	$type = 'application/json';
3257	break;
3258	case 'jsx':
3259	$type = 'text/jsx';
3260	break;
3261	case 'less':
3262	$type = 'text/x-less';
3263	break;
3264	case 'md':
3265	$type = 'text/x-gfm';
3266	break;
3267	case 'php':
3268	case 'phtml':
3269	case 'php3':
3270	case 'php4':
3271	case 'php5':
3272	case 'php7':
3273	case 'phps':
3274	$type = 'application/x-httpd-php';
3275	break;
3276	case 'scss':
3277	$type = 'text/x-scss';
3278	break;
3279	case 'sass':
3280	$type = 'text/x-sass';
3281	break;
3282	case 'sh':
3283	case 'bash':
3284	$type = 'text/x-sh';
3285	break;
3286	case 'sql':
3287	$type = 'text/x-sql';
3288	break;
3289	case 'svg':
3290	$type = 'application/svg+xml';
3291	break;
3292	case 'xml':
3293	$type = 'text/xml';
3294	break;
3295	case 'yml':
3296	case 'yaml':
3297	$type = 'text/x-yaml';
3298	break;
3299	case 'txt':
3300	default:
3301	$type = 'text/plain';
3302	break;
3303	}
3304	}
3305	}
3306
3307	if ( 'text/css' === $type ) {
3308	$settings['codemirror'] = array_merge( $settings['codemirror'], array(
3309	'mode' => 'css',
3310	'lint' => true,
3311	'autoCloseBrackets' => true,
3312	'matchBrackets' => true,
3313	) );
3314	} elseif ( 'text/x-scss' === $type \|\| 'text/x-less' === $type \|\| 'text/x-sass' === $type ) {
3315	$settings['codemirror'] = array_merge( $settings['codemirror'], array(
3316	'mode' => $type,
3317	'lint' => false,
3318	'autoCloseBrackets' => true,
3319	'matchBrackets' => true,
3320	) );
3321	} elseif ( 'text/x-diff' === $type ) {
3322	$settings['codemirror'] = array_merge( $settings['codemirror'], array(
3323	'mode' => 'diff',
3324	) );
3325	} elseif ( 'text/html' === $type ) {
3326	$settings['codemirror'] = array_merge( $settings['codemirror'], array(
3327	'mode' => 'htmlmixed',
3328	'lint' => true,
3329	'autoCloseBrackets' => true,
3330	'autoCloseTags' => true,
3331	'matchTags' => array(
3332	'bothTags' => true,
3333	),
3334	) );
3335
3336	if ( ! current_user_can( 'unfiltered_html' ) ) {
3337	$settings['htmlhint']['kses'] = wp_kses_allowed_html( 'post' );
3338	}
3339	} elseif ( 'text/x-gfm' === $type ) {
3340	$settings['codemirror'] = array_merge( $settings['codemirror'], array(
3341	'mode' => 'gfm',
3342	'highlightFormatting' => true,
3343	) );
3344	} elseif ( 'application/javascript' === $type \|\| 'text/javascript' === $type ) {
3345	$settings['codemirror'] = array_merge( $settings['codemirror'], array(
3346	'mode' => 'javascript',
3347	'lint' => true,
3348	'autoCloseBrackets' => true,
3349	'matchBrackets' => true,
3350	) );
3351	} elseif ( false !== strpos( $type, 'json' ) ) {
3352	$settings['codemirror'] = array_merge( $settings['codemirror'], array(
3353	'mode' => array(
3354	'name' => 'javascript',
3355	),
3356	'lint' => true,
3357	'autoCloseBrackets' => true,
3358	'matchBrackets' => true,
3359	) );
3360	if ( 'application/ld+json' === $type ) {
3361	$settings['codemirror']['mode']['jsonld'] = true;
3362	} else {
3363	$settings['codemirror']['mode']['json'] = true;
3364	}
3365	} elseif ( false !== strpos( $type, 'jsx' ) ) {
3366	$settings['codemirror'] = array_merge( $settings['codemirror'], array(
3367	'mode' => 'jsx',
3368	'autoCloseBrackets' => true,
3369	'matchBrackets' => true,
3370	) );
3371	} elseif ( 'text/x-markdown' === $type ) {
3372	$settings['codemirror'] = array_merge( $settings['codemirror'], array(
3373	'mode' => 'markdown',
3374	'highlightFormatting' => true,
3375	) );
3376	} elseif ( 'text/nginx' === $type ) {
3377	$settings['codemirror'] = array_merge( $settings['codemirror'], array(
3378	'mode' => 'nginx',
3379	) );
3380	} elseif ( 'application/x-httpd-php' === $type ) {
3381	$settings['codemirror'] = array_merge( $settings['codemirror'], array(
3382	'mode' => 'php',
3383	'autoCloseBrackets' => true,
3384	'autoCloseTags' => true,
3385	'matchBrackets' => true,
3386	'matchTags' => array(
3387	'bothTags' => true,
3388	),
3389	) );
3390	} elseif ( 'text/x-sql' === $type \|\| 'text/x-mysql' === $type ) {
3391	$settings['codemirror'] = array_merge( $settings['codemirror'], array(
3392	'mode' => 'sql',
3393	'autoCloseBrackets' => true,
3394	'matchBrackets' => true,
3395	) );
3396	} elseif ( false !== strpos( $type, 'xml' ) ) {
3397	$settings['codemirror'] = array_merge( $settings['codemirror'], array(
3398	'mode' => 'xml',
3399	'autoCloseBrackets' => true,
3400	'autoCloseTags' => true,
3401	'matchTags' => array(
3402	'bothTags' => true,
3403	),
3404	) );
3405	} elseif ( 'text/x-yaml' === $type ) {
3406	$settings['codemirror'] = array_merge( $settings['codemirror'], array(
3407	'mode' => 'yaml',
3408	) );
3409	} else {
3410	$settings['codemirror']['mode'] = $type;
3411	}
3412
3413	if ( ! empty( $settings['codemirror']['lint'] ) ) {
3414	$settings['codemirror']['gutters'][] = 'CodeMirror-lint-markers';
3415	}
3416
3417	// Let settings supplied via args override any defaults.
3418	foreach ( wp_array_slice_assoc( $args, array( 'codemirror', 'csslint', 'jshint', 'htmlhint' ) ) as $key => $value ) {
3419	$settings[ $key ] = array_merge(
3420	$settings[ $key ],
3421	$value
3422	);
3423	}
3424
3425	/**
3426	* Filters settings that are passed into the code editor.
3427	*
3428	* Returning a falsey value will disable the syntax-highlighting code editor.
3429	*
3430	* @since 4.9.0
3431	*
3432	* @param array $settings The array of settings passed to the code editor. A falsey value disables the editor.
3433	* @param array $args {
3434	* Args passed when calling `wp_enqueue_code_editor()`.
3435	*
3436	* @type string $type The MIME type of the file to be edited.
3437	* @type string $file Filename being edited.
3438	* @type WP_Theme $theme Theme being edited when on theme editor.
3439	* @type string $plugin Plugin being edited when on plugin editor.
3440	* @type array $codemirror Additional CodeMirror setting overrides.
3441	* @type array $csslint CSSLint rule overrides.
3442	* @type array $jshint JSHint rule overrides.
3443	* @type array $htmlhint JSHint rule overrides.
3444	* }
3445	*/
3446	$settings = apply_filters( 'wp_code_editor_settings', $settings, $args );
3447
3448	if ( empty( $settings ) \|\| empty( $settings['codemirror'] ) ) {
3449	return false;
3450	}
3451
3452	wp_enqueue_script( 'code-editor' );
3453	wp_enqueue_style( 'code-editor' );
3454
3455	if ( isset( $settings['codemirror']['mode'] ) ) {
3456	$mode = $settings['codemirror']['mode'];
3457	if ( is_string( $mode ) ) {
3458	$mode = array(
3459	'name' => $mode,
3460	);
3461	}
3462
3463	if ( ! empty( $settings['codemirror']['lint'] ) ) {
3464	switch ( $mode['name'] ) {
3465	case 'css':
3466	case 'text/css':
3467	case 'text/x-scss':
3468	case 'text/x-less':
3469	wp_enqueue_script( 'csslint' );
3470	break;
3471	case 'htmlmixed':
3472	case 'text/html':
3473	case 'php':
3474	case 'application/x-httpd-php':
3475	case 'text/x-php':
3476	wp_enqueue_script( 'htmlhint' );
3477	wp_enqueue_script( 'csslint' );
3478	wp_enqueue_script( 'jshint' );
3479	if ( ! current_user_can( 'unfiltered_html' ) ) {
3480	wp_enqueue_script( 'htmlhint-kses' );
3481	}
3482	break;
3483	case 'javascript':
3484	case 'application/ecmascript':
3485	case 'application/json':
3486	case 'application/javascript':
3487	case 'application/ld+json':
3488	case 'text/typescript':
3489	case 'application/typescript':
3490	wp_enqueue_script( 'jshint' );
3491	wp_enqueue_script( 'jsonlint' );
3492	break;
3493	}
3494	}
3495	}
3496
3497	wp_add_inline_script( 'code-editor', sprintf( 'jQuery.extend( wp.codeEditor.defaultSettings, %s );', wp_json_encode( $settings ) ) );
3498
3499	/**
3500	* Fires when scripts and styles are enqueued for the code editor.
3501	*
3502	* @since 4.9.0
3503	*
3504	* @param array $settings Settings for the enqueued code editor.
3505	*/
3506	do_action( 'wp_enqueue_code_editor', $settings );
3507
3508	return $settings;
3509	}
3510
3511	/**
3512	* Retrieves the contents of the search WordPress query variable.
3513	*
3514	* The search query string is passed through esc_attr() to ensure that it is safe
3515	* for placing in an html attribute.
3516	*
3517	* @since 2.3.0
3518	*
3519	* @param bool $escaped Whether the result is escaped. Default true.
3520	* Only use when you are later escaping it. Do not use unescaped.
3521	* @return string
3522	*/
3523	function get_search_query( $escaped = true ) {
3524	/**
3525	* Filters the contents of the search query variable.
3526	*
3527	* @since 2.3.0
3528	*
3529	* @param mixed $search Contents of the search query variable.
3530	*/
3531	$query = apply_filters( 'get_search_query', get_query_var( 's' ) );
3532
3533	if ( $escaped )
3534	$query = esc_attr( $query );
3535	return $query;
3536	}
3537
3538	/**
3539	* Displays the contents of the search query variable.
3540	*
3541	* The search query string is passed through esc_attr() to ensure that it is safe
3542	* for placing in an html attribute.
3543	*
3544	* @since 2.1.0
3545	*/
3546	function the_search_query() {
3547	/**
3548	* Filters the contents of the search query variable for display.
3549	*
3550	* @since 2.3.0
3551	*
3552	* @param mixed $search Contents of the search query variable.
3553	*/
3554	echo esc_attr( apply_filters( 'the_search_query', get_search_query( false ) ) );
3555	}
3556
3557	/**
3558	* Gets the language attributes for the html tag.
3559	*
3560	* Builds up a set of html attributes containing the text direction and language
3561	* information for the page.
3562	*
3563	* @since 4.3.0
3564	*
3565	* @param string $doctype Optional. The type of html document. Accepts 'xhtml' or 'html'. Default 'html'.
3566	*/
3567	function get_language_attributes( $doctype = 'html' ) {
3568	$attributes = array();
3569
3570	if ( function_exists( 'is_rtl' ) && is_rtl() )
3571	$attributes[] = 'dir="rtl"';
3572
3573	if ( $lang = get_bloginfo( 'language' ) ) {
3574	if ( get_option( 'html_type' ) == 'text/html' \|\| $doctype == 'html' ) {
3575	$attributes[] = 'lang="' . esc_attr( $lang ) . '"';
3576	}
3577
3578	if ( get_option( 'html_type' ) != 'text/html' \|\| $doctype == 'xhtml' ) {
3579	$attributes[] = 'xml:lang="' . esc_attr( $lang ) . '"';
3580	}
3581	}
3582
3583	$output = implode(' ', $attributes);
3584
3585	/**
3586	* Filters the language attributes for display in the html tag.
3587	*
3588	* @since 2.5.0
3589	* @since 4.3.0 Added the `$doctype` parameter.
3590	*
3591	* @param string $output A space-separated list of language attributes.
3592	* @param string $doctype The type of html document (xhtml\|html).
3593	*/
3594	return apply_filters( 'language_attributes', $output, $doctype );
3595	}
3596
3597	/**
3598	* Displays the language attributes for the html tag.
3599	*
3600	* Builds up a set of html attributes containing the text direction and language
3601	* information for the page.
3602	*
3603	* @since 2.1.0
3604	* @since 4.3.0 Converted into a wrapper for get_language_attributes().
3605	*
3606	* @param string $doctype Optional. The type of html document. Accepts 'xhtml' or 'html'. Default 'html'.
3607	*/
3608	function language_attributes( $doctype = 'html' ) {
3609	echo get_language_attributes( $doctype );
3610	}
3611
3612	/**
3613	* Retrieve paginated link for archive post pages.
3614	*
3615	* Technically, the function can be used to create paginated link list for any
3616	* area. The 'base' argument is used to reference the url, which will be used to
3617	* create the paginated links. The 'format' argument is then used for replacing
3618	* the page number. It is however, most likely and by default, to be used on the
3619	* archive post pages.
3620	*
3621	* The 'type' argument controls format of the returned value. The default is
3622	* 'plain', which is just a string with the links separated by a newline
3623	* character. The other possible values are either 'array' or 'list'. The
3624	* 'array' value will return an array of the paginated link list to offer full
3625	* control of display. The 'list' value will place all of the paginated links in
3626	* an unordered HTML list.
3627	*
3628	* The 'total' argument is the total amount of pages and is an integer. The
3629	* 'current' argument is the current page number and is also an integer.
3630	*
3631	* An example of the 'base' argument is "http://example.com/all_posts.php%_%"
3632	* and the '%_%' is required. The '%_%' will be replaced by the contents of in
3633	* the 'format' argument. An example for the 'format' argument is "?page=%#%"
3634	* and the '%#%' is also required. The '%#%' will be replaced with the page
3635	* number.
3636	*
3637	* You can include the previous and next links in the list by setting the
3638	* 'prev_next' argument to true, which it is by default. You can set the
3639	* previous text, by using the 'prev_text' argument. You can set the next text
3640	* by setting the 'next_text' argument.
3641	*
3642	* If the 'show_all' argument is set to true, then it will show all of the pages
3643	* instead of a short list of the pages near the current page. By default, the
3644	* 'show_all' is set to false and controlled by the 'end_size' and 'mid_size'
3645	* arguments. The 'end_size' argument is how many numbers on either the start
3646	* and the end list edges, by default is 1. The 'mid_size' argument is how many
3647	* numbers to either side of current page, but not including current page.
3648	*
3649	* It is possible to add query vars to the link by using the 'add_args' argument
3650	* and see add_query_arg() for more information.
3651	*
3652	* The 'before_page_number' and 'after_page_number' arguments allow users to
3653	* augment the links themselves. Typically this might be to add context to the
3654	* numbered links so that screen reader users understand what the links are for.
3655	* The text strings are added before and after the page number - within the
3656	* anchor tag.
3657	*
3658	* @since 2.1.0
3659	* @since 4.9.0 Added the `aria_current` argument.
3660	*
3661	* @global WP_Query $wp_query
3662	* @global WP_Rewrite $wp_rewrite
3663	*
3664	* @param string\|array $args {
3665	* Optional. Array or string of arguments for generating paginated links for archives.
3666	*
3667	* @type string $base Base of the paginated url. Default empty.
3668	* @type string $format Format for the pagination structure. Default empty.
3669	* @type int $total The total amount of pages. Default is the value WP_Query's
3670	* `max_num_pages` or 1.
3671	* @type int $current The current page number. Default is 'paged' query var or 1.
3672	* @type string $aria_current The value for the aria-current attribute. Possible values are 'page',
3673	* 'step', 'location', 'date', 'time', 'true', 'false'. Default is 'page'.
3674	* @type bool $show_all Whether to show all pages. Default false.
3675	* @type int $end_size How many numbers on either the start and the end list edges.
3676	* Default 1.
3677	* @type int $mid_size How many numbers to either side of the current pages. Default 2.
3678	* @type bool $prev_next Whether to include the previous and next links in the list. Default true.
3679	* @type bool $prev_text The previous page text. Default '« Previous'.
3680	* @type bool $next_text The next page text. Default 'Next »'.
3681	* @type string $type Controls format of the returned value. Possible values are 'plain',
3682	* 'array' and 'list'. Default is 'plain'.
3683	* @type array $add_args An array of query args to add. Default false.
3684	* @type string $add_fragment A string to append to each link. Default empty.
3685	* @type string $before_page_number A string to appear before the page number. Default empty.
3686	* @type string $after_page_number A string to append after the page number. Default empty.
3687	* }
3688	* @return array\|string\|void String of page links or array of page links.
3689	*/
3690	function paginate_links( $args = '', $merge_args = true ) {
3691	global $wp_query, $wp_rewrite;
3692
3693	// Setting up default values based on the current URL.
3694	$pagenum_link = html_entity_decode( get_pagenum_link() );
3695	$url_parts = explode( '?', $pagenum_link );
3696
3697	// Get max pages and current page out of the current query, if available.
3698	$total = isset( $wp_query->max_num_pages ) ? $wp_query->max_num_pages : 1;
3699	$current = get_query_var( 'paged' ) ? intval( get_query_var( 'paged' ) ) : 1;
3700
3701	// Append the format placeholder to the base URL.
3702	$pagenum_link = trailingslashit( $url_parts[0] ) . '%_%';
3703
3704	// URL base depends on permalink settings.
3705	$format = $wp_rewrite->using_index_permalinks() && ! strpos( $pagenum_link, 'index.php' ) ? 'index.php/' : '';
3706	$format .= $wp_rewrite->using_permalinks() ? user_trailingslashit( $wp_rewrite->pagination_base . '/%#%', 'paged' ) : '?paged=%#%';
3707
3708	$defaults = array(
3709	'base' => $pagenum_link, // http://example.com/all_posts.php%_% : %_% is replaced by format (below)
3710	'format' => $format, // ?page=%#% : %#% is replaced by the page number
3711	'total' => $total,
3712	'current' => $current,
3713	'aria_current' => 'page',
3714	'show_all' => false,
3715	'prev_next' => true,
3716	'prev_text' => __( '« Previous' ),
3717	'next_text' => __( 'Next »' ),
3718	'end_size' => 1,
3719	'mid_size' => 2,
3720	'type' => 'plain',
3721	'add_args' => array(), // array of query args to add
3722	'add_fragment' => '',
3723	'before_page_number' => '',
3724	'after_page_number' => '',
3725	);
3726
3727	$args = wp_parse_args( $args, $defaults );
3728
3729	if ( ! is_array( $args['add_args'] ) ) {
3730	$args['add_args'] = array();
3731	}
3732
3733	// Merge additional query vars found in the original URL into 'add_args' array.
3734	if ( isset( $url_parts[1] ) ) {
3735	// Find the format argument.
3736	$format = explode( '?', str_replace( '%_%', $args['format'], $args['base'] ) );
3737	$format_query = isset( $format[1] ) ? $format[1] : '';
3738	wp_parse_str( $format_query, $format_args );
3739
3740	// Find the query args of the requested URL.
3741	wp_parse_str( $url_parts[1], $url_query_args );
3742
3743	// Remove the format argument from the array of query arguments, to avoid overwriting custom format.
3744	foreach ( $format_args as $format_arg => $format_arg_value ) {
3745	unset( $url_query_args[ $format_arg ] );
3746	}
3747
3748	if($merge_args)
3749	{
3750	$args['add_args'] = array_merge( $args['add_args'], urlencode_deep( $url_query_args ) );
3751	}
3752	}
3753
3754	// Who knows what else people pass in $args
3755	$total = (int) $args['total'];
3756	if ( $total < 2 ) {
3757	return;
3758	}
3759	$current = (int) $args['current'];
3760	$end_size = (int) $args['end_size']; // Out of bounds? Make it the default.
3761	if ( $end_size < 1 ) {
3762	$end_size = 1;
3763	}
3764	$mid_size = (int) $args['mid_size'];
3765	if ( $mid_size < 0 ) {
3766	$mid_size = 2;
3767	}
3768	$add_args = $args['add_args'];
3769	$r = '';
3770	$page_links = array();
3771	$dots = false;
3772
3773	if ( $args['prev_next'] && $current && 1 < $current ) :
3774	$link = str_replace( '%_%', 2 == $current ? '' : $args['format'], $args['base'] );
3775	$link = str_replace( '%#%', $current - 1, $link );
3776	if ( $add_args )
3777	$link = add_query_arg( $add_args, $link );
3778	$link .= $args['add_fragment'];
3779
3780	/**
3781	* Filters the paginated links for the given archive pages.
3782	*
3783	* @since 3.0.0
3784	*
3785	* @param string $link The paginated link URL.
3786	*/
3787	$page_links[] = '<a class="prev page-numbers" href="' . esc_url( apply_filters( 'paginate_links', $link ) ) . '">' . $args['prev_text'] . '</a>';
3788	endif;
3789	for ( $n = 1; $n <= $total; $n++ ) :
3790	if ( $n == $current ) :
3791	$page_links[] = "<span aria-current='" . esc_attr( $args['aria_current'] ) . "' class='page-numbers current'>" . $args['before_page_number'] . number_format_i18n( $n ) . $args['after_page_number'] . "</span>";
3792	$dots = true;
3793	else :
3794	if ( $args['show_all'] \|\| ( $n <= $end_size \|\| ( $current && $n >= $current - $mid_size && $n <= $current + $mid_size ) \|\| $n > $total - $end_size ) ) :
3795	$link = str_replace( '%_%', 1 == $n ? '' : $args['format'], $args['base'] );
3796	$link = str_replace( '%#%', $n, $link );
3797	if ( $add_args )
3798	$link = add_query_arg( $add_args, $link );
3799	$link .= $args['add_fragment'];
3800
3801	/** This filter is documented in wp-includes/general-template.php */
3802	$page_links[] = "<a class='page-numbers' href='" . esc_url( apply_filters( 'paginate_links', $link ) ) . "'>" . $args['before_page_number'] . number_format_i18n( $n ) . $args['after_page_number'] . "</a>";
3803	$dots = true;
3804	elseif ( $dots && ! $args['show_all'] ) :
3805	$page_links[] = '<span class="page-numbers dots">' . __( '…' ) . '</span>';
3806	$dots = false;
3807	endif;
3808	endif;
3809	endfor;
3810	if ( $args['prev_next'] && $current && $current < $total ) :
3811	$link = str_replace( '%_%', $args['format'], $args['base'] );
3812	$link = str_replace( '%#%', $current + 1, $link );
3813	if ( $add_args )
3814	$link = add_query_arg( $add_args, $link );
3815	$link .= $args['add_fragment'];
3816
3817	/** This filter is documented in wp-includes/general-template.php */
3818	$page_links[] = '<a class="next page-numbers" href="' . esc_url( apply_filters( 'paginate_links', $link ) ) . '">' . $args['next_text'] . '</a>';
3819	endif;
3820	switch ( $args['type'] ) {
3821	case 'array' :
3822	return $page_links;
3823
3824	case 'list' :
3825	$r .= "<ul class='page-numbers'>\n\t<li>";
3826	$r .= join("</li>\n\t<li>", $page_links);
3827	$r .= "</li>\n</ul>\n";
3828	break;
3829
3830	default :
3831	$r = join("\n", $page_links);
3832	break;
3833	}
3834	return $r;
3835	}
3836
3837	/**
3838	* Registers an admin colour scheme css file.
3839	*
3840	* Allows a plugin to register a new admin colour scheme. For example:
3841	*
3842	* wp_admin_css_color( 'classic', __( 'Classic' ), admin_url( "css/colors-classic.css" ), array(
3843	* '#07273E', '#14568A', '#D54E21', '#2683AE'
3844	* ) );
3845	*
3846	* @since 2.5.0
3847	*
3848	* @global array $_wp_admin_css_colors
3849	*
3850	* @param string $key The unique key for this theme.
3851	* @param string $name The name of the theme.
3852	* @param string $url The URL of the CSS file containing the color scheme.
3853	* @param array $colors Optional. An array of CSS color definition strings which are used
3854	* to give the user a feel for the theme.
3855	* @param array $icons {
3856	* Optional. CSS color definitions used to color any SVG icons.
3857	*
3858	* @type string $base SVG icon base color.
3859	* @type string $focus SVG icon color on focus.
3860	* @type string $current SVG icon color of current admin menu link.
3861	* }
3862	*/
3863	function wp_admin_css_color( $key, $name, $url, $colors = array(), $icons = array() ) {
3864	global $_wp_admin_css_colors;
3865
3866	if ( !isset($_wp_admin_css_colors) )
3867	$_wp_admin_css_colors = array();
3868
3869	$_wp_admin_css_colors[$key] = (object) array(
3870	'name' => $name,
3871	'url' => $url,
3872	'colors' => $colors,
3873	'icon_colors' => $icons,
3874	);
3875	}
3876
3877	/**
3878	* Registers the default Admin color schemes
3879	*
3880	* @since 3.0.0
3881	*/
3882	function register_admin_color_schemes() {
3883	$suffix = is_rtl() ? '-rtl' : '';
3884	$suffix .= SCRIPT_DEBUG ? '' : '.min';
3885
3886	wp_admin_css_color( 'fresh', _x( 'Default', 'admin color scheme' ),
3887	false,
3888	array( '#222', '#333', '#0073aa', '#00a0d2' ),
3889	array( 'base' => '#82878c', 'focus' => '#00a0d2', 'current' => '#fff' )
3890	);
3891
3892	// Other color schemes are not available when running out of src
3893	if ( false !== strpos( get_bloginfo( 'version' ), '-src' ) ) {
3894	return;
3895	}
3896
3897	wp_admin_css_color( 'light', _x( 'Light', 'admin color scheme' ),
3898	admin_url( "css/colors/light/colors$suffix.css" ),
3899	array( '#e5e5e5', '#999', '#d64e07', '#04a4cc' ),
3900	array( 'base' => '#999', 'focus' => '#ccc', 'current' => '#ccc' )
3901	);
3902
3903	wp_admin_css_color( 'blue', _x( 'Blue', 'admin color scheme' ),
3904	admin_url( "css/colors/blue/colors$suffix.css" ),
3905	array( '#096484', '#4796b3', '#52accc', '#74B6CE' ),
3906	array( 'base' => '#e5f8ff', 'focus' => '#fff', 'current' => '#fff' )
3907	);
3908
3909	wp_admin_css_color( 'midnight', _x( 'Midnight', 'admin color scheme' ),
3910	admin_url( "css/colors/midnight/colors$suffix.css" ),
3911	array( '#25282b', '#363b3f', '#69a8bb', '#e14d43' ),
3912	array( 'base' => '#f1f2f3', 'focus' => '#fff', 'current' => '#fff' )
3913	);
3914
3915	wp_admin_css_color( 'sunrise', _x( 'Sunrise', 'admin color scheme' ),
3916	admin_url( "css/colors/sunrise/colors$suffix.css" ),
3917	array( '#b43c38', '#cf4944', '#dd823b', '#ccaf0b' ),
3918	array( 'base' => '#f3f1f1', 'focus' => '#fff', 'current' => '#fff' )
3919	);
3920
3921	wp_admin_css_color( 'ectoplasm', _x( 'Ectoplasm', 'admin color scheme' ),
3922	admin_url( "css/colors/ectoplasm/colors$suffix.css" ),
3923	array( '#413256', '#523f6d', '#a3b745', '#d46f15' ),
3924	array( 'base' => '#ece6f6', 'focus' => '#fff', 'current' => '#fff' )
3925	);
3926
3927	wp_admin_css_color( 'ocean', _x( 'Ocean', 'admin color scheme' ),
3928	admin_url( "css/colors/ocean/colors$suffix.css" ),
3929	array( '#627c83', '#738e96', '#9ebaa0', '#aa9d88' ),
3930	array( 'base' => '#f2fcff', 'focus' => '#fff', 'current' => '#fff' )
3931	);
3932
3933	wp_admin_css_color( 'coffee', _x( 'Coffee', 'admin color scheme' ),
3934	admin_url( "css/colors/coffee/colors$suffix.css" ),
3935	array( '#46403c', '#59524c', '#c7a589', '#9ea476' ),
3936	array( 'base' => '#f3f2f1', 'focus' => '#fff', 'current' => '#fff' )
3937	);
3938
3939	}
3940
3941	/**
3942	* Displays the URL of a WordPress admin CSS file.
3943	*
3944	* @see WP_Styles::_css_href and its {@see 'style_loader_src'} filter.
3945	*
3946	* @since 2.3.0
3947	*
3948	* @param string $file file relative to wp-admin/ without its ".css" extension.
3949	* @return string
3950	*/
3951	function wp_admin_css_uri( $file = 'wp-admin' ) {
3952	if ( defined('WP_INSTALLING') ) {
3953	$_file = "./$file.css";
3954	} else {
3955	$_file = admin_url("$file.css");
3956	}
3957	$_file = add_query_arg( 'version', get_bloginfo( 'version' ), $_file );
3958
3959	/**
3960	* Filters the URI of a WordPress admin CSS file.
3961	*
3962	* @since 2.3.0
3963	*
3964	* @param string $_file Relative path to the file with query arguments attached.
3965	* @param string $file Relative path to the file, minus its ".css" extension.
3966	*/
3967	return apply_filters( 'wp_admin_css_uri', $_file, $file );
3968	}
3969
3970	/**
3971	* Enqueues or directly prints a stylesheet link to the specified CSS file.
3972	*
3973	* "Intelligently" decides to enqueue or to print the CSS file. If the
3974	* {@see 'wp_print_styles'} action has not yet been called, the CSS file will be
3975	* enqueued. If the {@see 'wp_print_styles'} action has been called, the CSS link will
3976	* be printed. Printing may be forced by passing true as the $force_echo
3977	* (second) parameter.
3978	*
3979	* For backward compatibility with WordPress 2.3 calling method: If the $file
3980	* (first) parameter does not correspond to a registered CSS file, we assume
3981	* $file is a file relative to wp-admin/ without its ".css" extension. A
3982	* stylesheet link to that generated URL is printed.
3983	*
3984	* @since 2.3.0
3985	*
3986	* @param string $file Optional. Style handle name or file name (without ".css" extension) relative
3987	* to wp-admin/. Defaults to 'wp-admin'.
3988	* @param bool $force_echo Optional. Force the stylesheet link to be printed rather than enqueued.
3989	*/
3990	function wp_admin_css( $file = 'wp-admin', $force_echo = false ) {
3991	// For backward compatibility
3992	$handle = 0 === strpos( $file, 'css/' ) ? substr( $file, 4 ) : $file;
3993
3994	if ( wp_styles()->query( $handle ) ) {
3995	if ( $force_echo \|\| did_action( 'wp_print_styles' ) ) // we already printed the style queue. Print this one immediately
3996	wp_print_styles( $handle );
3997	else // Add to style queue
3998	wp_enqueue_style( $handle );
3999	return;
4000	}
4001
4002	/**
4003	* Filters the stylesheet link to the specified CSS file.
4004	*
4005	* If the site is set to display right-to-left, the RTL stylesheet link
4006	* will be used instead.
4007	*
4008	* @since 2.3.0
4009	* @param string $stylesheet_link HTML link element for the stylesheet.
4010	* @param string $file Style handle name or filename (without ".css" extension)
4011	* relative to wp-admin/. Defaults to 'wp-admin'.
4012	*/
4013	echo apply_filters( 'wp_admin_css', "<link rel='stylesheet' href='" . esc_url( wp_admin_css_uri( $file ) ) . "' type='text/css' />\n", $file );
4014
4015	if ( function_exists( 'is_rtl' ) && is_rtl() ) {
4016	/** This filter is documented in wp-includes/general-template.php */
4017	echo apply_filters( 'wp_admin_css', "<link rel='stylesheet' href='" . esc_url( wp_admin_css_uri( "$file-rtl" ) ) . "' type='text/css' />\n", "$file-rtl" );
4018	}
4019	}
4020
4021	/**
4022	* Enqueues the default ThickBox js and css.
4023	*
4024	* If any of the settings need to be changed, this can be done with another js
4025	* file similar to media-upload.js. That file should
4026	* require array('thickbox') to ensure it is loaded after.
4027	*
4028	* @since 2.5.0
4029	*/
4030	function add_thickbox() {
4031	wp_enqueue_script( 'thickbox' );
4032	wp_enqueue_style( 'thickbox' );
4033
4034	if ( is_network_admin() )
4035	add_action( 'admin_head', '_thickbox_path_admin_subfolder' );
4036	}
4037
4038	/**
4039	* Displays the XHTML generator that is generated on the wp_head hook.
4040	*
4041	* See {@see 'wp_head'}.
4042	*
4043	* @since 2.5.0
4044	*/
4045	function wp_generator() {
4046	/**
4047	* Filters the output of the XHTML generator tag.
4048	*
4049	* @since 2.5.0
4050	*
4051	* @param string $generator_type The XHTML generator.
4052	*/
4053	the_generator( apply_filters( 'wp_generator_type', 'xhtml' ) );
4054	}
4055
4056	/**
4057	* Display the generator XML or Comment for RSS, ATOM, etc.
4058	*
4059	* Returns the correct generator type for the requested output format. Allows
4060	* for a plugin to filter generators overall the {@see 'the_generator'} filter.
4061	*
4062	* @since 2.5.0
4063	*
4064	* @param string $type The type of generator to output - (html\|xhtml\|atom\|rss2\|rdf\|comment\|export).
4065	*/
4066	function the_generator( $type ) {
4067	/**
4068	* Filters the output of the XHTML generator tag for display.
4069	*
4070	* @since 2.5.0
4071	*
4072	* @param string $generator_type The generator output.
4073	* @param string $type The type of generator to output. Accepts 'html',
4074	* 'xhtml', 'atom', 'rss2', 'rdf', 'comment', 'export'.
4075	*/
4076	echo apply_filters( 'the_generator', get_the_generator($type), $type ) . "\n";
4077	}
4078
4079	/**
4080	* Creates the generator XML or Comment for RSS, ATOM, etc.
4081	*
4082	* Returns the correct generator type for the requested output format. Allows
4083	* for a plugin to filter generators on an individual basis using the
4084	* {@see 'get_the_generator_$type'} filter.
4085	*
4086	* @since 2.5.0
4087	*
4088	* @param string $type The type of generator to return - (html\|xhtml\|atom\|rss2\|rdf\|comment\|export).
4089	* @return string\|void The HTML content for the generator.
4090	*/
4091	function get_the_generator( $type = '' ) {
4092	if ( empty( $type ) ) {
4093
4094	$current_filter = current_filter();
4095	if ( empty( $current_filter ) )
4096	return;
4097
4098	switch ( $current_filter ) {
4099	case 'rss2_head' :
4100	case 'commentsrss2_head' :
4101	$type = 'rss2';
4102	break;
4103	case 'rss_head' :
4104	case 'opml_head' :
4105	$type = 'comment';
4106	break;
4107	case 'rdf_header' :
4108	$type = 'rdf';
4109	break;
4110	case 'atom_head' :
4111	case 'comments_atom_head' :
4112	case 'app_head' :
4113	$type = 'atom';
4114	break;
4115	}
4116	}
4117
4118	switch ( $type ) {
4119	case 'html':
4120	$gen = '<meta name="generator" content="WordPress ' . esc_attr( get_bloginfo( 'version' ) ) . '">';
4121	break;
4122	case 'xhtml':
4123	$gen = '<meta name="generator" content="WordPress ' . esc_attr( get_bloginfo( 'version' ) ) . '" />';
4124	break;
4125	case 'atom':
4126	$gen = '<generator uri="https://wordpress.org/" version="' . esc_attr( get_bloginfo_rss( 'version' ) ) . '">WordPress</generator>';
4127	break;
4128	case 'rss2':
4129	$gen = '<generator>' . esc_url_raw( 'https://wordpress.org/?v=' . get_bloginfo_rss( 'version' ) ) . '</generator>';
4130	break;
4131	case 'rdf':
4132	$gen = '<admin:generatorAgent rdf:resource="' . esc_url_raw( 'https://wordpress.org/?v=' . get_bloginfo_rss( 'version' ) ) . '" />';
4133	break;
4134	case 'comment':
4135	$gen = '<!-- generator="WordPress/' . esc_attr( get_bloginfo( 'version' ) ) . '" -->';
4136	break;
4137	case 'export':
4138	$gen = '<!-- generator="WordPress/' . esc_attr( get_bloginfo_rss( 'version' ) ) . '" created="' . date( 'Y-m-d H:i' ) . '" -->';
4139	break;
4140	}
4141
4142	/**
4143	* Filters the HTML for the retrieved generator type.
4144	*
4145	* The dynamic portion of the hook name, `$type`, refers to the generator type.
4146	*
4147	* @since 2.5.0
4148	*
4149	* @param string $gen The HTML markup output to wp_head().
4150	* @param string $type The type of generator. Accepts 'html', 'xhtml', 'atom',
4151	* 'rss2', 'rdf', 'comment', 'export'.
4152	*/
4153	return apply_filters( "get_the_generator_{$type}", $gen, $type );
4154	}
4155
4156	/**
4157	* Outputs the html checked attribute.
4158	*
4159	* Compares the first two arguments and if identical marks as checked
4160	*
4161	* @since 1.0.0
4162	*
4163	* @param mixed $checked One of the values to compare
4164	* @param mixed $current (true) The other value to compare if not just true
4165	* @param bool $echo Whether to echo or just return the string
4166	* @return string html attribute or empty string
4167	*/
4168	function checked( $checked, $current = true, $echo = true ) {
4169	return __checked_selected_helper( $checked, $current, $echo, 'checked' );
4170	}
4171
4172	/**
4173	* Outputs the html selected attribute.
4174	*
4175	* Compares the first two arguments and if identical marks as selected
4176	*
4177	* @since 1.0.0
4178	*
4179	* @param mixed $selected One of the values to compare
4180	* @param mixed $current (true) The other value to compare if not just true
4181	* @param bool $echo Whether to echo or just return the string
4182	* @return string html attribute or empty string
4183	*/
4184	function selected( $selected, $current = true, $echo = true ) {
4185	return __checked_selected_helper( $selected, $current, $echo, 'selected' );
4186	}
4187
4188	/**
4189	* Outputs the html disabled attribute.
4190	*
4191	* Compares the first two arguments and if identical marks as disabled
4192	*
4193	* @since 3.0.0
4194	*
4195	* @param mixed $disabled One of the values to compare
4196	* @param mixed $current (true) The other value to compare if not just true
4197	* @param bool $echo Whether to echo or just return the string
4198	* @return string html attribute or empty string
4199	*/
4200	function disabled( $disabled, $current = true, $echo = true ) {
4201	return __checked_selected_helper( $disabled, $current, $echo, 'disabled' );
4202	}
4203
4204	/**
4205	* Outputs the html readonly attribute.
4206	*
4207	* Compares the first two arguments and if identical marks as readonly
4208	*
4209	* @since 4.9.0
4210	*
4211	* @param mixed $readonly One of the values to compare
4212	* @param mixed $current (true) The other value to compare if not just true
4213	* @param bool $echo Whether to echo or just return the string
4214	* @return string html attribute or empty string
4215	*/
4216	function readonly( $readonly, $current = true, $echo = true ) {
4217	return __checked_selected_helper( $readonly, $current, $echo, 'readonly' );
4218	}
4219
4220	/**
4221	* Private helper function for checked, selected, disabled and readonly.
4222	*
4223	* Compares the first two arguments and if identical marks as $type
4224	*
4225	* @since 2.8.0
4226	* @access private
4227	*
4228	* @param mixed $helper One of the values to compare
4229	* @param mixed $current (true) The other value to compare if not just true
4230	* @param bool $echo Whether to echo or just return the string
4231	* @param string $type The type of checked\|selected\|disabled\|readonly we are doing
4232	* @return string html attribute or empty string
4233	*/
4234	function __checked_selected_helper( $helper, $current, $echo, $type ) {
4235	if ( (string) $helper === (string) $current )
4236	$result = " $type='$type'";
4237	else
4238	$result = '';
4239
4240	if ( $echo )
4241	echo $result;
4242
4243	return $result;
4244	}
4245
4246	/**
4247	* Default settings for heartbeat
4248	*
4249	* Outputs the nonce used in the heartbeat XHR
4250	*
4251	* @since 3.6.0
4252	*
4253	* @param array $settings
4254	* @return array $settings
4255	*/
4256	function wp_heartbeat_settings( $settings ) {
4257	if ( ! is_admin() )
4258	$settings['ajaxurl'] = admin_url( 'admin-ajax.php', 'relative' );
4259
4260	if ( is_user_logged_in() )
4261	$settings['nonce'] = wp_create_nonce( 'heartbeat-nonce' );
4262
4263	return $settings;
4264	}

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Ticket #44269: general-template.php

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