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/wp-includes/ -> post-template.php (source)

   1  <?php
   2  /**
   3   * WordPress Post Template Functions.
   4   *
   5   * Gets content for the current post in the loop.
   6   *
   7   * @package WordPress
   8   * @subpackage Template
   9   */
  10  
  11  /**
  12   * Display the ID of the current item in the WordPress Loop.
  13   *
  14   * @since 0.71
  15   */
  16  function the_ID() {
  17      echo get_the_ID();
  18  }
  19  
  20  /**
  21   * Retrieve the ID of the current item in the WordPress Loop.
  22   *
  23   * @since 2.1.0
  24   * @uses $post
  25   *
  26   * @return int
  27   */
  28  function get_the_ID() {
  29      global $post;
  30      return $post->ID;
  31  }
  32  
  33  /**
  34   * Display or retrieve the current post title with optional content.
  35   *
  36   * @since 0.71
  37   *
  38   * @param string $before Optional. Content to prepend to the title.
  39   * @param string $after Optional. Content to append to the title.
  40   * @param bool $echo Optional, default to true.Whether to display or return.
  41   * @return null|string Null on no title. String if $echo parameter is false.
  42   */
  43  function the_title($before = '', $after = '', $echo = true) {
  44      $title = get_the_title();
  45  
  46      if ( strlen($title) == 0 )
  47          return;
  48  
  49      $title = $before . $title . $after;
  50  
  51      if ( $echo )
  52          echo $title;
  53      else
  54          return $title;
  55  }
  56  
  57  /**
  58   * Sanitize the current title when retrieving or displaying.
  59   *
  60   * Works like {@link the_title()}, except the parameters can be in a string or
  61   * an array. See the function for what can be override in the $args parameter.
  62   *
  63   * The title before it is displayed will have the tags stripped and {@link
  64   * esc_attr()} before it is passed to the user or displayed. The default
  65   * as with {@link the_title()}, is to display the title.
  66   *
  67   * @since 2.3.0
  68   *
  69   * @param string|array $args Optional. Override the defaults.
  70   * @return string|null Null on failure or display. String when echo is false.
  71   */
  72  function the_title_attribute( $args = '' ) {
  73      $title = get_the_title();
  74  
  75      if ( strlen($title) == 0 )
  76          return;
  77  
  78      $defaults = array('before' => '', 'after' =>  '', 'echo' => true);
  79      $r = wp_parse_args($args, $defaults);
  80      extract( $r, EXTR_SKIP );
  81  
  82  
  83      $title = $before . $title . $after;
  84      $title = esc_attr(strip_tags($title));
  85  
  86      if ( $echo )
  87          echo $title;
  88      else
  89          return $title;
  90  }
  91  
  92  /**
  93   * Retrieve post title.
  94   *
  95   * If the post is protected and the visitor is not an admin, then "Protected"
  96   * will be displayed before the post title. If the post is private, then
  97   * "Private" will be located before the post title.
  98   *
  99   * @since 0.71
 100   *
 101   * @param int $id Optional. Post ID.
 102   * @return string
 103   */
 104  function get_the_title( $id = 0 ) {
 105      $post = &get_post($id);
 106  
 107      $title = isset($post->post_title) ? $post->post_title : '';
 108      $id = isset($post->ID) ? $post->ID : (int) $id;
 109  
 110      if ( !is_admin() ) {
 111          if ( !empty($post->post_password) ) {
 112              $protected_title_format = apply_filters('protected_title_format', __('Protected: %s'));
 113              $title = sprintf($protected_title_format, $title);
 114          } else if ( isset($post->post_status) && 'private' == $post->post_status ) {
 115              $private_title_format = apply_filters('private_title_format', __('Private: %s'));
 116              $title = sprintf($private_title_format, $title);
 117          }
 118      }
 119      return apply_filters( 'the_title', $title, $id );
 120  }
 121  
 122  /**
 123   * Display the Post Global Unique Identifier (guid).
 124   *
 125   * The guid will appear to be a link, but should not be used as an link to the
 126   * post. The reason you should not use it as a link, is because of moving the
 127   * blog across domains.
 128   *
 129   * Url is escaped to make it xml safe
 130   *
 131   * @since 1.5.0
 132   *
 133   * @param int $id Optional. Post ID.
 134   */
 135  function the_guid( $id = 0 ) {
 136      echo esc_url( get_the_guid( $id ) );
 137  }
 138  
 139  /**
 140   * Retrieve the Post Global Unique Identifier (guid).
 141   *
 142   * The guid will appear to be a link, but should not be used as an link to the
 143   * post. The reason you should not use it as a link, is because of moving the
 144   * blog across domains.
 145   *
 146   * @since 1.5.0
 147   *
 148   * @param int $id Optional. Post ID.
 149   * @return string
 150   */
 151  function get_the_guid( $id = 0 ) {
 152      $post = &get_post($id);
 153  
 154      return apply_filters('get_the_guid', $post->guid);
 155  }
 156  
 157  /**
 158   * Display the post content.
 159   *
 160   * @since 0.71
 161   *
 162   * @param string $more_link_text Optional. Content for when there is more text.
 163   * @param string $stripteaser Optional. Teaser content before the more text.
 164   */
 165  function the_content($more_link_text = null, $stripteaser = 0) {
 166      $content = get_the_content($more_link_text, $stripteaser);
 167      $content = apply_filters('the_content', $content);
 168      $content = str_replace(']]>', ']]&gt;', $content);
 169      echo $content;
 170  }
 171  
 172  /**
 173   * Retrieve the post content.
 174   *
 175   * @since 0.71
 176   *
 177   * @param string $more_link_text Optional. Content for when there is more text.
 178   * @param string $stripteaser Optional. Teaser content before the more text.
 179   * @return string
 180   */
 181  function get_the_content($more_link_text = null, $stripteaser = 0) {
 182      global $post, $more, $page, $pages, $multipage, $preview;
 183  
 184      if ( null === $more_link_text )
 185          $more_link_text = __( '(more...)' );
 186  
 187      $output = '';
 188      $hasTeaser = false;
 189  
 190      // If post password required and it doesn't match the cookie.
 191      if ( post_password_required($post) ) {
 192          $output = get_the_password_form();
 193          return $output;
 194      }
 195  
 196      if ( $page > count($pages) ) // if the requested page doesn't exist
 197          $page = count($pages); // give them the highest numbered page that DOES exist
 198  
 199      $content = $pages[$page-1];
 200      if ( preg_match('/<!--more(.*?)?-->/', $content, $matches) ) {
 201          $content = explode($matches[0], $content, 2);
 202          if ( !empty($matches[1]) && !empty($more_link_text) )
 203              $more_link_text = strip_tags(wp_kses_no_null(trim($matches[1])));
 204  
 205          $hasTeaser = true;
 206      } else {
 207          $content = array($content);
 208      }
 209      if ( (false !== strpos($post->post_content, '<!--noteaser-->') && ((!$multipage) || ($page==1))) )
 210          $stripteaser = 1;
 211      $teaser = $content[0];
 212      if ( ($more) && ($stripteaser) && ($hasTeaser) )
 213          $teaser = '';
 214      $output .= $teaser;
 215      if ( count($content) > 1 ) {
 216          if ( $more ) {
 217              $output .= '<span id="more-' . $post->ID . '"></span>' . $content[1];
 218          } else {
 219              if ( ! empty($more_link_text) )
 220                  $output .= apply_filters( 'the_content_more_link', ' <a href="' . get_permalink() . "#more-{$post->ID}\" class=\"more-link\">$more_link_text</a>", $more_link_text );
 221              $output = force_balance_tags($output);
 222          }
 223  
 224      }
 225      if ( $preview ) // preview fix for javascript bug with foreign languages
 226          $output =    preg_replace_callback('/\%u([0-9A-F]{4})/', '_convert_urlencoded_to_entities', $output);
 227  
 228      return $output;
 229  }
 230  
 231  /**
 232   * Preview fix for javascript bug with foreign languages
 233   *
 234   * @since 3.1.0
 235   * @access private
 236   * @param array $match Match array from preg_replace_callback
 237   * @returns string
 238   */
 239  function _convert_urlencoded_to_entities( $match ) {
 240      return '&#' . base_convert( $match[1], 16, 10 ) . ';';
 241  }
 242  
 243  /**
 244   * Display the post excerpt.
 245   *
 246   * @since 0.71
 247   * @uses apply_filters() Calls 'the_excerpt' hook on post excerpt.
 248   */
 249  function the_excerpt() {
 250      echo apply_filters('the_excerpt', get_the_excerpt());
 251  }
 252  
 253  /**
 254   * Retrieve the post excerpt.
 255   *
 256   * @since 0.71
 257   *
 258   * @param mixed $deprecated Not used.
 259   * @return string
 260   */
 261  function get_the_excerpt( $deprecated = '' ) {
 262      if ( !empty( $deprecated ) )
 263          _deprecated_argument( __FUNCTION__, '2.3' );
 264  
 265      global $post;
 266      $output = $post->post_excerpt;
 267      if ( post_password_required($post) ) {
 268          $output = __('There is no excerpt because this is a protected post.');
 269          return $output;
 270      }
 271  
 272      return apply_filters('get_the_excerpt', $output);
 273  }
 274  
 275  /**
 276   * Whether post has excerpt.
 277   *
 278   * @since 2.3.0
 279   *
 280   * @param int $id Optional. Post ID.
 281   * @return bool
 282   */
 283  function has_excerpt( $id = 0 ) {
 284      $post = &get_post( $id );
 285      return ( !empty( $post->post_excerpt ) );
 286  }
 287  
 288  /**
 289   * Display the classes for the post div.
 290   *
 291   * @since 2.7.0
 292   *
 293   * @param string|array $class One or more classes to add to the class list.
 294   * @param int $post_id An optional post ID.
 295   */
 296  function post_class( $class = '', $post_id = null ) {
 297      // Separates classes with a single space, collates classes for post DIV
 298      echo 'class="' . join( ' ', get_post_class( $class, $post_id ) ) . '"';
 299  }
 300  
 301  /**
 302   * Retrieve the classes for the post div as an array.
 303   *
 304   * The class names are add are many. If the post is a sticky, then the 'sticky'
 305   * class name. The class 'hentry' is always added to each post. For each
 306   * category, the class will be added with 'category-' with category slug is
 307   * added. The tags are the same way as the categories with 'tag-' before the tag
 308   * slug. All classes are passed through the filter, 'post_class' with the list
 309   * of classes, followed by $class parameter value, with the post ID as the last
 310   * parameter.
 311   *
 312   * @since 2.7.0
 313   *
 314   * @param string|array $class One or more classes to add to the class list.
 315   * @param int $post_id An optional post ID.
 316   * @return array Array of classes.
 317   */
 318  function get_post_class( $class = '', $post_id = null ) {
 319      $post = get_post($post_id);
 320  
 321      $classes = array();
 322  
 323      if ( empty($post) )
 324          return $classes;
 325  
 326      $classes[] = 'post-' . $post->ID;
 327      $classes[] = $post->post_type;
 328      $classes[] = 'type-' . $post->post_type;
 329      $classes[] = 'status-' . $post->post_status;
 330  
 331      // Post Format
 332      $post_format = get_post_format( $post->ID );
 333  
 334      if ( post_type_supports( $post->post_type, 'post-formats' ) ) {
 335          if ( $post_format && !is_wp_error($post_format) )
 336              $classes[] = 'format-' . sanitize_html_class( $post_format );
 337          else
 338              $classes[] = 'format-standard';
 339      }
 340  
 341      // post requires password
 342      if ( post_password_required($post->ID) )
 343          $classes[] = 'post-password-required';
 344  
 345      // sticky for Sticky Posts
 346      if ( is_sticky($post->ID) && is_home() && !is_paged() )
 347          $classes[] = 'sticky';
 348  
 349      // hentry for hAtom compliance
 350      $classes[] = 'hentry';
 351  
 352      // Categories
 353      if ( is_object_in_taxonomy( $post->post_type, 'category' ) ) {
 354          foreach ( (array) get_the_category($post->ID) as $cat ) {
 355              if ( empty($cat->slug ) )
 356                  continue;
 357              $classes[] = 'category-' . sanitize_html_class($cat->slug, $cat->term_id);
 358          }
 359      }
 360  
 361      // Tags
 362      if ( is_object_in_taxonomy( $post->post_type, 'post_tag' ) ) {
 363          foreach ( (array) get_the_tags($post->ID) as $tag ) {
 364              if ( empty($tag->slug ) )
 365                  continue;
 366              $classes[] = 'tag-' . sanitize_html_class($tag->slug, $tag->term_id);
 367          }
 368      }
 369  
 370      if ( !empty($class) ) {
 371          if ( !is_array( $class ) )
 372              $class = preg_split('#\s+#', $class);
 373          $classes = array_merge($classes, $class);
 374      }
 375  
 376      $classes = array_map('esc_attr', $classes);
 377  
 378      return apply_filters('post_class', $classes, $class, $post->ID);
 379  }
 380  
 381  /**
 382   * Display the classes for the body element.
 383   *
 384   * @since 2.8.0
 385   *
 386   * @param string|array $class One or more classes to add to the class list.
 387   */
 388  function body_class( $class = '' ) {
 389      // Separates classes with a single space, collates classes for body element
 390      echo 'class="' . join( ' ', get_body_class( $class ) ) . '"';
 391  }
 392  
 393  /**
 394   * Retrieve the classes for the body element as an array.
 395   *
 396   * @since 2.8.0
 397   *
 398   * @param string|array $class One or more classes to add to the class list.
 399   * @return array Array of classes.
 400   */
 401  function get_body_class( $class = '' ) {
 402      global $wp_query, $wpdb;
 403  
 404      $classes = array();
 405  
 406      if ( is_rtl() )
 407          $classes[] = 'rtl';
 408  
 409      if ( is_front_page() )
 410          $classes[] = 'home';
 411      if ( is_home() )
 412          $classes[] = 'blog';
 413      if ( is_archive() )
 414          $classes[] = 'archive';
 415      if ( is_date() )
 416          $classes[] = 'date';
 417      if ( is_search() )
 418          $classes[] = 'search';
 419      if ( is_paged() )
 420          $classes[] = 'paged';
 421      if ( is_attachment() )
 422          $classes[] = 'attachment';
 423      if ( is_404() )
 424          $classes[] = 'error404';
 425  
 426      if ( is_single() ) {
 427          $post_id = $wp_query->get_queried_object_id();
 428          $post = $wp_query->get_queried_object();
 429  
 430          $classes[] = 'single';
 431          $classes[] = 'single-' . sanitize_html_class($post->post_type, $post_id);
 432          $classes[] = 'postid-' . $post_id;
 433  
 434          // Post Format
 435          $post_format = get_post_format( $post->ID );
 436  
 437          if ( $post_format && !is_wp_error($post_format) )
 438              $classes[] = 'single-format-' . sanitize_html_class( $post_format );
 439          else
 440              $classes[] = 'single-format-standard';
 441  
 442          if ( is_attachment() ) {
 443              $mime_type = get_post_mime_type($post_id);
 444              $mime_prefix = array( 'application/', 'image/', 'text/', 'audio/', 'video/', 'music/' );
 445              $classes[] = 'attachmentid-' . $post_id;
 446              $classes[] = 'attachment-' . str_replace( $mime_prefix, '', $mime_type );
 447          }
 448      } elseif ( is_archive() ) {
 449          if ( is_post_type_archive() ) {
 450              $classes[] = 'post-type-archive';
 451              $classes[] = 'post-type-archive-' . sanitize_html_class( get_query_var( 'post_type' ) );
 452          } else if ( is_author() ) {
 453              $author = $wp_query->get_queried_object();
 454              $classes[] = 'author';
 455              $classes[] = 'author-' . sanitize_html_class( $author->user_nicename , $author->ID );
 456              $classes[] = 'author-' . $author->ID;
 457          } elseif ( is_category() ) {
 458              $cat = $wp_query->get_queried_object();
 459              $classes[] = 'category';
 460              $classes[] = 'category-' . sanitize_html_class( $cat->slug, $cat->term_id );
 461              $classes[] = 'category-' . $cat->term_id;
 462          } elseif ( is_tag() ) {
 463              $tags = $wp_query->get_queried_object();
 464              $classes[] = 'tag';
 465              $classes[] = 'tag-' . sanitize_html_class( $tags->slug, $tags->term_id );
 466              $classes[] = 'tag-' . $tags->term_id;
 467          } elseif ( is_tax() ) {
 468              $term = $wp_query->get_queried_object();
 469              $classes[] = 'tax-' . sanitize_html_class( $term->taxonomy );
 470              $classes[] = 'term-' . sanitize_html_class( $term->slug, $term->term_id );
 471              $classes[] = 'term-' . $term->term_id;
 472          }
 473      } elseif ( is_page() ) {
 474          $classes[] = 'page';
 475  
 476          $page_id = $wp_query->get_queried_object_id();
 477  
 478          $post = get_page($page_id);
 479  
 480          $classes[] = 'page-id-' . $page_id;
 481  
 482          if ( $wpdb->get_var( $wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE post_parent = %d AND post_type = 'page' AND post_status = 'publish' LIMIT 1", $page_id) ) )
 483              $classes[] = 'page-parent';
 484  
 485          if ( $post->post_parent ) {
 486              $classes[] = 'page-child';
 487              $classes[] = 'parent-pageid-' . $post->post_parent;
 488          }
 489          if ( is_page_template() ) {
 490              $classes[] = 'page-template';
 491              $classes[] = 'page-template-' . sanitize_html_class( str_replace( '.', '-', get_post_meta( $page_id, '_wp_page_template', true ) ), '' );
 492          }
 493      } elseif ( is_search() ) {
 494          if ( !empty( $wp_query->posts ) )
 495              $classes[] = 'search-results';
 496          else
 497              $classes[] = 'search-no-results';
 498      }
 499  
 500      if ( is_user_logged_in() )
 501          $classes[] = 'logged-in';
 502  
 503      if ( is_admin_bar_showing() )
 504          $classes[] = 'admin-bar';
 505  
 506      $page = $wp_query->get( 'page' );
 507  
 508      if ( !$page || $page < 2)
 509          $page = $wp_query->get( 'paged' );
 510  
 511      if ( $page && $page > 1 ) {
 512          $classes[] = 'paged-' . $page;
 513  
 514          if ( is_single() )
 515              $classes[] = 'single-paged-' . $page;
 516          elseif ( is_page() )
 517              $classes[] = 'page-paged-' . $page;
 518          elseif ( is_category() )
 519              $classes[] = 'category-paged-' . $page;
 520          elseif ( is_tag() )
 521              $classes[] = 'tag-paged-' . $page;
 522          elseif ( is_date() )
 523              $classes[] = 'date-paged-' . $page;
 524          elseif ( is_author() )
 525              $classes[] = 'author-paged-' . $page;
 526          elseif ( is_search() )
 527              $classes[] = 'search-paged-' . $page;
 528          elseif ( is_post_type_archive() )
 529              $classes[] = 'post-type-paged-' . $page;
 530      }
 531  
 532      if ( !empty( $class ) ) {
 533          if ( !is_array( $class ) )
 534              $class = preg_split( '#\s+#', $class );
 535          $classes = array_merge( $classes, $class );
 536      }
 537  
 538      $classes = array_map( 'esc_attr', $classes );
 539  
 540      return apply_filters( 'body_class', $classes, $class );
 541  }
 542  
 543  /**
 544   * Whether post requires password and correct password has been provided.
 545   *
 546   * @since 2.7.0
 547   *
 548   * @param int|object $post An optional post.  Global $post used if not provided.
 549   * @return bool false if a password is not required or the correct password cookie is present, true otherwise.
 550   */
 551  function post_password_required( $post = null ) {
 552      $post = get_post($post);
 553  
 554      if ( empty($post->post_password) )
 555          return false;
 556  
 557      if ( !isset($_COOKIE['wp-postpass_' . COOKIEHASH]) )
 558          return true;
 559  
 560      if ( $_COOKIE['wp-postpass_' . COOKIEHASH] != $post->post_password )
 561          return true;
 562  
 563      return false;
 564  }
 565  
 566  /**
 567   * Display "sticky" CSS class, if a post is sticky.
 568   *
 569   * @since 2.7.0
 570   *
 571   * @param int $post_id An optional post ID.
 572   */
 573  function sticky_class( $post_id = null ) {
 574      if ( !is_sticky($post_id) )
 575          return;
 576  
 577      echo " sticky";
 578  }
 579  
 580  /**
 581   * Page Template Functions for usage in Themes
 582   *
 583   * @package WordPress
 584   * @subpackage Template
 585   */
 586  
 587  /**
 588   * The formatted output of a list of pages.
 589   *
 590   * Displays page links for paginated posts (i.e. includes the <!--nextpage-->.
 591   * Quicktag one or more times). This tag must be within The Loop.
 592   *
 593   * The defaults for overwriting are:
 594   * 'next_or_number' - Default is 'number' (string). Indicates whether page
 595   *      numbers should be used. Valid values are number and next.
 596   * 'nextpagelink' - Default is 'Next Page' (string). Text for link to next page.
 597   *      of the bookmark.
 598   * 'previouspagelink' - Default is 'Previous Page' (string). Text for link to
 599   *      previous page, if available.
 600   * 'pagelink' - Default is '%' (String).Format string for page numbers. The % in
 601   *      the parameter string will be replaced with the page number, so Page %
 602   *      generates "Page 1", "Page 2", etc. Defaults to %, just the page number.
 603   * 'before' - Default is '<p> Pages:' (string). The html or text to prepend to
 604   *      each bookmarks.
 605   * 'after' - Default is '</p>' (string). The html or text to append to each
 606   *      bookmarks.
 607   * 'link_before' - Default is '' (string). The html or text to prepend to each
 608   *      Pages link inside the <a> tag. Also prepended to the current item, which
 609   *      is not linked.
 610   * 'link_after' - Default is '' (string). The html or text to append to each
 611   *      Pages link inside the <a> tag. Also appended to the current item, which
 612   *      is not linked.
 613   *
 614   * @since 1.2.0
 615   * @access private
 616   *
 617   * @param string|array $args Optional. Overwrite the defaults.
 618   * @return string Formatted output in HTML.
 619   */
 620  function wp_link_pages($args = '') {
 621      $defaults = array(
 622          'before' => '<p>' . __('Pages:'), 'after' => '</p>',
 623          'link_before' => '', 'link_after' => '',
 624          'next_or_number' => 'number', 'nextpagelink' => __('Next page'),
 625          'previouspagelink' => __('Previous page'), 'pagelink' => '%',
 626          'echo' => 1
 627      );
 628  
 629      $r = wp_parse_args( $args, $defaults );
 630      $r = apply_filters( 'wp_link_pages_args', $r );
 631      extract( $r, EXTR_SKIP );
 632  
 633      global $page, $numpages, $multipage, $more, $pagenow;
 634  
 635      $output = '';
 636      if ( $multipage ) {
 637          if ( 'number' == $next_or_number ) {
 638              $output .= $before;
 639              for ( $i = 1; $i < ($numpages+1); $i = $i + 1 ) {
 640                  $j = str_replace('%',$i,$pagelink);
 641                  $output .= ' ';
 642                  if ( ($i != $page) || ((!$more) && ($page==1)) ) {
 643                      $output .= _wp_link_page($i);
 644                  }
 645                  $output .= $link_before . $j . $link_after;
 646                  if ( ($i != $page) || ((!$more) && ($page==1)) )
 647                      $output .= '</a>';
 648              }
 649              $output .= $after;
 650          } else {
 651              if ( $more ) {
 652                  $output .= $before;
 653                  $i = $page - 1;
 654                  if ( $i && $more ) {
 655                      $output .= _wp_link_page($i);
 656                      $output .= $link_before. $previouspagelink . $link_after . '</a>';
 657                  }
 658                  $i = $page + 1;
 659                  if ( $i <= $numpages && $more ) {
 660                      $output .= _wp_link_page($i);
 661                      $output .= $link_before. $nextpagelink . $link_after . '</a>';
 662                  }
 663                  $output .= $after;
 664              }
 665          }
 666      }
 667  
 668      if ( $echo )
 669          echo $output;
 670  
 671      return $output;
 672  }
 673  
 674  /**
 675   * Helper function for wp_link_pages().
 676   *
 677   * @since 3.1.0
 678   * @access private
 679   *
 680   * @param int $i Page number.
 681   * @return string Link.
 682   */
 683  function _wp_link_page( $i ) {
 684      global $post, $wp_rewrite;
 685  
 686      if ( 1 == $i ) {
 687          $url = get_permalink();
 688      } else {
 689          if ( '' == get_option('permalink_structure') || in_array($post->post_status, array('draft', 'pending')) )
 690              $url = add_query_arg( 'page', $i, get_permalink() );
 691          elseif ( 'page' == get_option('show_on_front') && get_option('page_on_front') == $post->ID )
 692              $url = trailingslashit(get_permalink()) . user_trailingslashit("$wp_rewrite->pagination_base/" . $i, 'single_paged');
 693          else
 694              $url = trailingslashit(get_permalink()) . user_trailingslashit($i, 'single_paged');
 695      }
 696  
 697      return '<a href="' . esc_url( $url ) . '">';
 698  }
 699  
 700  //
 701  // Post-meta: Custom per-post fields.
 702  //
 703  
 704  /**
 705   * Retrieve post custom meta data field.
 706   *
 707   * @since 1.5.0
 708   *
 709   * @param string $key Meta data key name.
 710   * @return bool|string|array Array of values or single value, if only one element exists. False will be returned if key does not exist.
 711   */
 712  function post_custom( $key = '' ) {
 713      $custom = get_post_custom();
 714  
 715      if ( !isset( $custom[$key] ) )
 716          return false;
 717      elseif ( 1 == count($custom[$key]) )
 718          return $custom[$key][0];
 719      else
 720          return $custom[$key];
 721  }
 722  
 723  /**
 724   * Display list of post custom fields.
 725   *
 726   * @internal This will probably change at some point...
 727   * @since 1.2.0
 728   * @uses apply_filters() Calls 'the_meta_key' on list item HTML content, with key and value as separate parameters.
 729   */
 730  function the_meta() {
 731      if ( $keys = get_post_custom_keys() ) {
 732          echo "<ul class='post-meta'>\n";
 733          foreach ( (array) $keys as $key ) {
 734              $keyt = trim($key);
 735              if ( '_' == $keyt[0] )
 736                  continue;
 737              $values = array_map('trim', get_post_custom_values($key));
 738              $value = implode($values,', ');
 739              echo apply_filters('the_meta_key', "<li><span class='post-meta-key'>$key:</span> $value</li>\n", $key, $value);
 740          }
 741          echo "</ul>\n";
 742      }
 743  }
 744  
 745  //
 746  // Pages
 747  //
 748  
 749  /**
 750   * Retrieve or display list of pages as a dropdown (select list).
 751   *
 752   * @since 2.1.0
 753   *
 754   * @param array|string $args Optional. Override default arguments.
 755   * @return string HTML content, if not displaying.
 756   */
 757  function wp_dropdown_pages($args = '') {
 758      $defaults = array(
 759          'depth' => 0, 'child_of' => 0,
 760          'selected' => 0, 'echo' => 1,
 761          'name' => 'page_id', 'id' => '',
 762          'show_option_none' => '', 'show_option_no_change' => '',
 763          'option_none_value' => ''
 764      );
 765  
 766      $r = wp_parse_args( $args, $defaults );
 767      extract( $r, EXTR_SKIP );
 768  
 769      $pages = get_pages($r);
 770      $output = '';
 771      $name = esc_attr($name);
 772      // Back-compat with old system where both id and name were based on $name argument
 773      if ( empty($id) )
 774          $id = $name;
 775  
 776      if ( ! empty($pages) ) {
 777          $output = "<select name=\"$name\" id=\"$id\">\n";
 778          if ( $show_option_no_change )
 779              $output .= "\t<option value=\"-1\">$show_option_no_change</option>";
 780          if ( $show_option_none )
 781              $output .= "\t<option value=\"" . esc_attr($option_none_value) . "\">$show_option_none</option>\n";
 782          $output .= walk_page_dropdown_tree($pages, $depth, $r);
 783          $output .= "</select>\n";
 784      }
 785  
 786      $output = apply_filters('wp_dropdown_pages', $output);
 787  
 788      if ( $echo )
 789          echo $output;
 790  
 791      return $output;
 792  }
 793  
 794  /**
 795   * Retrieve or display list of pages in list (li) format.
 796   *
 797   * @since 1.5.0
 798   *
 799   * @param array|string $args Optional. Override default arguments.
 800   * @return string HTML content, if not displaying.
 801   */
 802  function wp_list_pages($args = '') {
 803      $defaults = array(
 804          'depth' => 0, 'show_date' => '',
 805          'date_format' => get_option('date_format'),
 806          'child_of' => 0, 'exclude' => '',
 807          'title_li' => __('Pages'), 'echo' => 1,
 808          'authors' => '', 'sort_column' => 'menu_order, post_title',
 809          'link_before' => '', 'link_after' => '', 'walker' => '',
 810      );
 811  
 812      $r = wp_parse_args( $args, $defaults );
 813      extract( $r, EXTR_SKIP );
 814  
 815      $output = '';
 816      $current_page = 0;
 817  
 818      // sanitize, mostly to keep spaces out
 819      $r['exclude'] = preg_replace('/[^0-9,]/', '', $r['exclude']);
 820  
 821      // Allow plugins to filter an array of excluded pages (but don't put a nullstring into the array)
 822      $exclude_array = ( $r['exclude'] ) ? explode(',', $r['exclude']) : array();
 823      $r['exclude'] = implode( ',', apply_filters('wp_list_pages_excludes', $exclude_array) );
 824  
 825      // Query pages.
 826      $r['hierarchical'] = 0;
 827      $pages = get_pages($r);
 828  
 829      if ( !empty($pages) ) {
 830          if ( $r['title_li'] )
 831              $output .= '<li class="pagenav">' . $r['title_li'] . '<ul>';
 832  
 833          global $wp_query;
 834          if ( is_page() || is_attachment() || $wp_query->is_posts_page )
 835              $current_page = $wp_query->get_queried_object_id();
 836          $output .= walk_page_tree($pages, $r['depth'], $current_page, $r);
 837  
 838          if ( $r['title_li'] )
 839              $output .= '</ul></li>';
 840      }
 841  
 842      $output = apply_filters('wp_list_pages', $output, $r);
 843  
 844      if ( $r['echo'] )
 845          echo $output;
 846      else
 847          return $output;
 848  }
 849  
 850  /**
 851   * Display or retrieve list of pages with optional home link.
 852   *
 853   * The arguments are listed below and part of the arguments are for {@link
 854   * wp_list_pages()} function. Check that function for more info on those
 855   * arguments.
 856   *
 857   * <ul>
 858   * <li><strong>sort_column</strong> - How to sort the list of pages. Defaults
 859   * to page title. Use column for posts table.</li>
 860   * <li><strong>menu_class</strong> - Class to use for the div ID which contains
 861   * the page list. Defaults to 'menu'.</li>
 862   * <li><strong>echo</strong> - Whether to echo list or return it. Defaults to
 863   * echo.</li>
 864   * <li><strong>link_before</strong> - Text before show_home argument text.</li>
 865   * <li><strong>link_after</strong> - Text after show_home argument text.</li>
 866   * <li><strong>show_home</strong> - If you set this argument, then it will
 867   * display the link to the home page. The show_home argument really just needs
 868   * to be set to the value of the text of the link.</li>
 869   * </ul>
 870   *
 871   * @since 2.7.0
 872   *
 873   * @param array|string $args
 874   */
 875  function wp_page_menu( $args = array() ) {
 876      $defaults = array('sort_column' => 'menu_order, post_title', 'menu_class' => 'menu', 'echo' => true, 'link_before' => '', 'link_after' => '');
 877      $args = wp_parse_args( $args, $defaults );
 878      $args = apply_filters( 'wp_page_menu_args', $args );
 879  
 880      $menu = '';
 881  
 882      $list_args = $args;
 883  
 884      // Show Home in the menu
 885      if ( ! empty($args['show_home']) ) {
 886          if ( true === $args['show_home'] || '1' === $args['show_home'] || 1 === $args['show_home'] )
 887              $text = __('Home');
 888          else
 889              $text = $args['show_home'];
 890          $class = '';
 891          if ( is_front_page() && !is_paged() )
 892              $class = 'class="current_page_item"';
 893          $menu .= '<li ' . $class . '><a href="' . home_url( '/' ) . '" title="' . esc_attr($text) . '">' . $args['link_before'] . $text . $args['link_after'] . '</a></li>';
 894          // If the front page is a page, add it to the exclude list
 895          if (get_option('show_on_front') == 'page') {
 896              if ( !empty( $list_args['exclude'] ) ) {
 897                  $list_args['exclude'] .= ',';
 898              } else {
 899                  $list_args['exclude'] = '';
 900              }
 901              $list_args['exclude'] .= get_option('page_on_front');
 902          }
 903      }
 904  
 905      $list_args['echo'] = false;
 906      $list_args['title_li'] = '';
 907      $menu .= str_replace( array( "\r", "\n", "\t" ), '', wp_list_pages($list_args) );
 908  
 909      if ( $menu )
 910          $menu = '<ul>' . $menu . '</ul>';
 911  
 912      $menu = '<div class="' . esc_attr($args['menu_class']) . '">' . $menu . "</div>\n";
 913      $menu = apply_filters( 'wp_page_menu', $menu, $args );
 914      if ( $args['echo'] )
 915          echo $menu;
 916      else
 917          return $menu;
 918  }
 919  
 920  //
 921  // Page helpers
 922  //
 923  
 924  /**
 925   * Retrieve HTML list content for page list.
 926   *
 927   * @uses Walker_Page to create HTML list content.
 928   * @since 2.1.0
 929   * @see Walker_Page::walk() for parameters and return description.
 930   */
 931  function walk_page_tree($pages, $depth, $current_page, $r) {
 932      if ( empty($r['walker']) )
 933          $walker = new Walker_Page;
 934      else
 935          $walker = $r['walker'];
 936  
 937      $args = array($pages, $depth, $r, $current_page);
 938      return call_user_func_array(array(&$walker, 'walk'), $args);
 939  }
 940  
 941  /**
 942   * Retrieve HTML dropdown (select) content for page list.
 943   *
 944   * @uses Walker_PageDropdown to create HTML dropdown content.
 945   * @since 2.1.0
 946   * @see Walker_PageDropdown::walk() for parameters and return description.
 947   */
 948  function walk_page_dropdown_tree() {
 949      $args = func_get_args();
 950      if ( empty($args[2]['walker']) ) // the user's options are the third parameter
 951          $walker = new Walker_PageDropdown;
 952      else
 953          $walker = $args[2]['walker'];
 954  
 955      return call_user_func_array(array(&$walker, 'walk'), $args);
 956  }
 957  
 958  /**
 959   * Create HTML list of pages.
 960   *
 961   * @package WordPress
 962   * @since 2.1.0
 963   * @uses Walker
 964   */
 965  class Walker_Page extends Walker {
 966      /**
 967       * @see Walker::$tree_type
 968       * @since 2.1.0
 969       * @var string
 970       */
 971      var $tree_type = 'page';
 972  
 973      /**
 974       * @see Walker::$db_fields
 975       * @since 2.1.0
 976       * @todo Decouple this.
 977       * @var array
 978       */
 979      var $db_fields = array ('parent' => 'post_parent', 'id' => 'ID');
 980  
 981      /**
 982       * @see Walker::start_lvl()
 983       * @since 2.1.0
 984       *
 985       * @param string $output Passed by reference. Used to append additional content.
 986       * @param int $depth Depth of page. Used for padding.
 987       */
 988  	function start_lvl(&$output, $depth) {
 989          $indent = str_repeat("\t", $depth);
 990          $output .= "\n$indent<ul class='children'>\n";
 991      }
 992  
 993      /**
 994       * @see Walker::end_lvl()
 995       * @since 2.1.0
 996       *
 997       * @param string $output Passed by reference. Used to append additional content.
 998       * @param int $depth Depth of page. Used for padding.
 999       */
1000  	function end_lvl(&$output, $depth) {
1001          $indent = str_repeat("\t", $depth);
1002          $output .= "$indent</ul>\n";
1003      }
1004  
1005      /**
1006       * @see Walker::start_el()
1007       * @since 2.1.0
1008       *
1009       * @param string $output Passed by reference. Used to append additional content.
1010       * @param object $page Page data object.
1011       * @param int $depth Depth of page. Used for padding.
1012       * @param int $current_page Page ID.
1013       * @param array $args
1014       */
1015  	function start_el(&$output, $page, $depth, $args, $current_page) {
1016          if ( $depth )
1017              $indent = str_repeat("\t", $depth);
1018          else
1019              $indent = '';
1020  
1021          extract($args, EXTR_SKIP);
1022          $css_class = array('page_item', 'page-item-'.$page->ID);
1023          if ( !empty($current_page) ) {
1024              $_current_page = get_page( $current_page );
1025              _get_post_ancestors($_current_page);
1026              if ( isset($_current_page->ancestors) && in_array($page->ID, (array) $_current_page->ancestors) )
1027                  $css_class[] = 'current_page_ancestor';
1028              if ( $page->ID == $current_page )
1029                  $css_class[] = 'current_page_item';
1030              elseif ( $_current_page && $page->ID == $_current_page->post_parent )
1031                  $css_class[] = 'current_page_parent';
1032          } elseif ( $page->ID == get_option('page_for_posts') ) {
1033              $css_class[] = 'current_page_parent';
1034          }
1035  
1036          $css_class = implode(' ', apply_filters('page_css_class', $css_class, $page));
1037  
1038          $output .= $indent . '<li class="' . $css_class . '"><a href="' . get_permalink($page->ID) . '" title="' . esc_attr( wp_strip_all_tags( apply_filters( 'the_title', $page->post_title, $page->ID ) ) ) . '">' . $link_before . apply_filters( 'the_title', $page->post_title, $page->ID ) . $link_after . '</a>';
1039  
1040          if ( !empty($show_date) ) {
1041              if ( 'modified' == $show_date )
1042                  $time = $page->post_modified;
1043              else
1044                  $time = $page->post_date;
1045  
1046              $output .= " " . mysql2date($date_format, $time);
1047          }
1048      }
1049  
1050      /**
1051       * @see Walker::end_el()
1052       * @since 2.1.0
1053       *
1054       * @param string $output Passed by reference. Used to append additional content.
1055       * @param object $page Page data object. Not used.
1056       * @param int $depth Depth of page. Not Used.
1057       */
1058  	function end_el(&$output, $page, $depth) {
1059          $output .= "</li>\n";
1060      }
1061  
1062  }
1063  
1064  /**
1065   * Create HTML dropdown list of pages.
1066   *
1067   * @package WordPress
1068   * @since 2.1.0
1069   * @uses Walker
1070   */
1071  class Walker_PageDropdown extends Walker {
1072      /**
1073       * @see Walker::$tree_type
1074       * @since 2.1.0
1075       * @var string
1076       */
1077      var $tree_type = 'page';
1078  
1079      /**
1080       * @see Walker::$db_fields
1081       * @since 2.1.0
1082       * @todo Decouple this
1083       * @var array
1084       */
1085      var $db_fields = array ('parent' => 'post_parent', 'id' => 'ID');
1086  
1087      /**
1088       * @see Walker::start_el()
1089       * @since 2.1.0
1090       *
1091       * @param string $output Passed by reference. Used to append additional content.
1092       * @param object $page Page data object.
1093       * @param int $depth Depth of page in reference to parent pages. Used for padding.
1094       * @param array $args Uses 'selected' argument for selected page to set selected HTML attribute for option element.
1095       */
1096  	function start_el(&$output, $page, $depth, $args) {
1097          $pad = str_repeat('&nbsp;', $depth * 3);
1098  
1099          $output .= "\t<option class=\"level-$depth\" value=\"$page->ID\"";
1100          if ( $page->ID == $args['selected'] )
1101              $output .= ' selected="selected"';
1102          $output .= '>';
1103          $title = apply_filters( 'list_pages', $page->post_title );
1104          $output .= $pad . esc_html( $title );
1105          $output .= "</option>\n";
1106      }
1107  }
1108  
1109  //
1110  // Attachments
1111  //
1112  
1113  /**
1114   * Display an attachment page link using an image or icon.
1115   *
1116   * @since 2.0.0
1117   *
1118   * @param int $id Optional. Post ID.
1119   * @param bool $fullsize Optional, default is false. Whether to use full size.
1120   * @param bool $deprecated Deprecated. Not used.
1121   * @param bool $permalink Optional, default is false. Whether to include permalink.
1122   */
1123  function the_attachment_link( $id = 0, $fullsize = false, $deprecated = false, $permalink = false ) {
1124      if ( !empty( $deprecated ) )
1125          _deprecated_argument( __FUNCTION__, '2.5' );
1126  
1127      if ( $fullsize )
1128          echo wp_get_attachment_link($id, 'full', $permalink);
1129      else
1130          echo wp_get_attachment_link($id, 'thumbnail', $permalink);
1131  }
1132  
1133  /**
1134   * Retrieve an attachment page link using an image or icon, if possible.
1135   *
1136   * @since 2.5.0
1137   * @uses apply_filters() Calls 'wp_get_attachment_link' filter on HTML content with same parameters as function.
1138   *
1139   * @param int $id Optional. Post ID.
1140   * @param string $size Optional, default is 'thumbnail'. Size of image, either array or string.
1141   * @param bool $permalink Optional, default is false. Whether to add permalink to image.
1142   * @param bool $icon Optional, default is false. Whether to include icon.
1143   * @param string $text Optional, default is false. If string, then will be link text.
1144   * @return string HTML content.
1145   */
1146  function wp_get_attachment_link($id = 0, $size = 'thumbnail', $permalink = false, $icon = false, $text = false) {
1147      $id = intval($id);
1148      $_post = & get_post( $id );
1149  
1150      if ( ('attachment' != $_post->post_type) || !$url = wp_get_attachment_url($_post->ID) )
1151          return __('Missing Attachment');
1152  
1153      if ( $permalink )
1154          $url = get_attachment_link($_post->ID);
1155  
1156      $post_title = esc_attr($_post->post_title);
1157  
1158      if ( $text ) {
1159          $link_text = esc_attr($text);
1160      } elseif ( ( is_int($size) && $size != 0 ) or ( is_string($size) && $size != 'none' ) or $size != false ) {
1161          $link_text = wp_get_attachment_image($id, $size, $icon);
1162      } else {
1163          $link_text = '';
1164      }
1165  
1166      if( trim($link_text) == '' )
1167          $link_text = $_post->post_title;
1168  
1169      return apply_filters( 'wp_get_attachment_link', "<a href='$url' title='$post_title'>$link_text</a>", $id, $size, $permalink, $icon, $text );
1170  }
1171  
1172  /**
1173   * Wrap attachment in <<p>> element before content.
1174   *
1175   * @since 2.0.0
1176   * @uses apply_filters() Calls 'prepend_attachment' hook on HTML content.
1177   *
1178   * @param string $content
1179   * @return string
1180   */
1181  function prepend_attachment($content) {
1182      global $post;
1183  
1184      if ( empty($post->post_type) || $post->post_type != 'attachment' )
1185          return $content;
1186  
1187      $p = '<p class="attachment">';
1188      // show the medium sized image representation of the attachment if available, and link to the raw file
1189      $p .= wp_get_attachment_link(0, 'medium', false);
1190      $p .= '</p>';
1191      $p = apply_filters('prepend_attachment', $p);
1192  
1193      return "$p\n$content";
1194  }
1195  
1196  //
1197  // Misc
1198  //
1199  
1200  /**
1201   * Retrieve protected post password form content.
1202   *
1203   * @since 1.0.0
1204   * @uses apply_filters() Calls 'the_password_form' filter on output.
1205   *
1206   * @return string HTML content for password form for password protected post.
1207   */
1208  function get_the_password_form() {
1209      global $post;
1210      $label = 'pwbox-'.(empty($post->ID) ? rand() : $post->ID);
1211      $output = '<form action="' . get_option('siteurl') . '/wp-pass.php" method="post">
1212      <p>' . __("This post is password protected. To view it please enter your password below:") . '</p>
1213      <p><label for="' . $label . '">' . __("Password:") . ' <input name="post_password" id="' . $label . '" type="password" size="20" /></label> <input type="submit" name="Submit" value="' . esc_attr__("Submit") . '" /></p>
1214      </form>
1215      ';
1216      return apply_filters('the_password_form', $output);
1217  }
1218  
1219  /**
1220   * Whether currently in a page template.
1221   *
1222   * This template tag allows you to determine if you are in a page template.
1223   * You can optionally provide a template name and then the check will be
1224   * specific to that template.
1225   *
1226   * @since 2.5.0
1227   * @uses $wp_query
1228   *
1229   * @param string $template The specific template name if specific matching is required.
1230   * @return bool False on failure, true if success.
1231   */
1232  function is_page_template($template = '') {
1233      if (!is_page()) {
1234          return false;
1235      }
1236  
1237      global $wp_query;
1238  
1239      $page = $wp_query->get_queried_object();
1240      $custom_fields = get_post_custom_values('_wp_page_template',$page->ID);
1241      $page_template = $custom_fields[0];
1242  
1243      // We have no argument passed so just see if a page_template has been specified
1244      if ( empty( $template ) ) {
1245          if ( !empty( $page_template ) and ( 'default' != $page_template ) ) {
1246              return true;
1247          }
1248      } elseif ( $template == $page_template) {
1249          return true;
1250      }
1251  
1252      return false;
1253  }
1254  
1255  /**
1256   * Retrieve formatted date timestamp of a revision (linked to that revisions's page).
1257   *
1258   * @package WordPress
1259   * @subpackage Post_Revisions
1260   * @since 2.6.0
1261   *
1262   * @uses date_i18n()
1263   *
1264   * @param int|object $revision Revision ID or revision object.
1265   * @param bool $link Optional, default is true. Link to revisions's page?
1266   * @return string i18n formatted datetimestamp or localized 'Current Revision'.
1267   */
1268  function wp_post_revision_title( $revision, $link = true ) {
1269      if ( !$revision = get_post( $revision ) )
1270          return $revision;
1271  
1272      if ( !in_array( $revision->post_type, array( 'post', 'page', 'revision' ) ) )
1273          return false;
1274  
1275      /* translators: revision date format, see http://php.net/date */
1276      $datef = _x( 'j F, Y @ G:i', 'revision date format');
1277      /* translators: 1: date */
1278      $autosavef = __( '%1$s [Autosave]' );
1279      /* translators: 1: date */
1280      $currentf  = __( '%1$s [Current Revision]' );
1281  
1282      $date = date_i18n( $datef, strtotime( $revision->post_modified ) );
1283      if ( $link && current_user_can( 'edit_post', $revision->ID ) && $link = get_edit_post_link( $revision->ID ) )
1284          $date = "<a href='$link'>$date</a>";
1285  
1286      if ( !wp_is_post_revision( $revision ) )
1287          $date = sprintf( $currentf, $date );
1288      elseif ( wp_is_post_autosave( $revision ) )
1289          $date = sprintf( $autosavef, $date );
1290  
1291      return $date;
1292  }
1293  
1294  /**
1295   * Display list of a post's revisions.
1296   *
1297   * Can output either a UL with edit links or a TABLE with diff interface, and
1298   * restore action links.
1299   *
1300   * Second argument controls parameters:
1301   *   (bool)   parent : include the parent (the "Current Revision") in the list.
1302   *   (string) format : 'list' or 'form-table'.  'list' outputs UL, 'form-table'
1303   *                     outputs TABLE with UI.
1304   *   (int)    right  : what revision is currently being viewed - used in
1305   *                     form-table format.
1306   *   (int)    left   : what revision is currently being diffed against right -
1307   *                     used in form-table format.
1308   *
1309   * @package WordPress
1310   * @subpackage Post_Revisions
1311   * @since 2.6.0
1312   *
1313   * @uses wp_get_post_revisions()
1314   * @uses wp_post_revision_title()
1315   * @uses get_edit_post_link()
1316   * @uses get_the_author_meta()
1317   *
1318   * @todo split into two functions (list, form-table) ?
1319   *
1320   * @param int|object $post_id Post ID or post object.
1321   * @param string|array $args See description {@link wp_parse_args()}.
1322   * @return null
1323   */
1324  function wp_list_post_revisions( $post_id = 0, $args = null ) {
1325      if ( !$post = get_post( $post_id ) )
1326          return;
1327  
1328      $defaults = array( 'parent' => false, 'right' => false, 'left' => false, 'format' => 'list', 'type' => 'all' );
1329      extract( wp_parse_args( $args, $defaults ), EXTR_SKIP );
1330  
1331      switch ( $type ) {
1332          case 'autosave' :
1333              if ( !$autosave = wp_get_post_autosave( $post->ID ) )
1334                  return;
1335              $revisions = array( $autosave );
1336              break;
1337          case 'revision' : // just revisions - remove autosave later
1338          case 'all' :
1339          default :
1340              if ( !$revisions = wp_get_post_revisions( $post->ID ) )
1341                  return;
1342              break;
1343      }
1344  
1345      /* translators: post revision: 1: when, 2: author name */
1346      $titlef = _x( '%1$s by %2$s', 'post revision' );
1347  
1348      if ( $parent )
1349          array_unshift( $revisions, $post );
1350  
1351      $rows = $right_checked = '';
1352      $class = false;
1353      $can_edit_post = current_user_can( 'edit_post', $post->ID );
1354      foreach ( $revisions as $revision ) {
1355          if ( !current_user_can( 'read_post', $revision->ID ) )
1356              continue;
1357          if ( 'revision' === $type && wp_is_post_autosave( $revision ) )
1358              continue;
1359  
1360          $date = wp_post_revision_title( $revision );
1361          $name = get_the_author_meta( 'display_name', $revision->post_author );
1362  
1363          if ( 'form-table' == $format ) {
1364              if ( $left )
1365                  $left_checked = $left == $revision->ID ? ' checked="checked"' : '';
1366              else
1367                  $left_checked = $right_checked ? ' checked="checked"' : ''; // [sic] (the next one)
1368              $right_checked = $right == $revision->ID ? ' checked="checked"' : '';
1369  
1370              $class = $class ? '' : " class='alternate'";
1371  
1372              if ( $post->ID != $revision->ID && $can_edit_post )
1373                  $actions = '<a href="' . wp_nonce_url( add_query_arg( array( 'revision' => $revision->ID, 'action' => 'restore' ) ), "restore-post_$post->ID|$revision->ID" ) . '">' . __( 'Restore' ) . '</a>';
1374              else
1375                  $actions = '';
1376  
1377              $rows .= "<tr$class>\n";
1378              $rows .= "\t<th style='white-space: nowrap' scope='row'><input type='radio' name='left' value='$revision->ID'$left_checked /></th>\n";
1379              $rows .= "\t<th style='white-space: nowrap' scope='row'><input type='radio' name='right' value='$revision->ID'$right_checked /></th>\n";
1380              $rows .= "\t<td>$date</td>\n";
1381              $rows .= "\t<td>$name</td>\n";
1382              $rows .= "\t<td class='action-links'>$actions</td>\n";
1383              $rows .= "</tr>\n";
1384          } else {
1385              $title = sprintf( $titlef, $date, $name );
1386              $rows .= "\t<li>$title</li>\n";
1387          }
1388      }
1389  
1390      if ( 'form-table' == $format ) : ?>
1391  
1392  <form action="revision.php" method="get">
1393  
1394  <div class="tablenav">
1395      <div class="alignleft">
1396          <input type="submit" class="button-secondary" value="<?php esc_attr_e( 'Compare Revisions' ); ?>" />
1397          <input type="hidden" name="action" value="diff" />
1398          <input type="hidden" name="post_type" value="<?php echo esc_attr($post->post_type); ?>" />
1399      </div>
1400  </div>
1401  
1402  <br class="clear" />
1403  
1404  <table class="widefat post-revisions" cellspacing="0" id="post-revisions">
1405      <col />
1406      <col />
1407      <col style="width: 33%" />
1408      <col style="width: 33%" />
1409      <col style="width: 33%" />
1410  <thead>
1411  <tr>
1412      <th scope="col"><?php /* translators: column name in revisons */ _ex( 'Old', 'revisions column name' ); ?></th>
1413      <th scope="col"><?php /* translators: column name in revisons */ _ex( 'New', 'revisions column name' ); ?></th>
1414      <th scope="col"><?php /* translators: column name in revisons */ _ex( 'Date Created', 'revisions column name' ); ?></th>
1415      <th scope="col"><?php _e( 'Author' ); ?></th>
1416      <th scope="col" class="action-links"><?php _e( 'Actions' ); ?></th>
1417  </tr>
1418  </thead>
1419  <tbody>
1420  
1421  <?php echo $rows; ?>
1422  
1423  </tbody>
1424  </table>
1425  
1426  </form>
1427  
1428  <?php
1429      else :
1430          echo "<ul class='post-revisions'>\n";
1431          echo $rows;
1432          echo "</ul>";
1433      endif;
1434  
1435  }


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