<?php

// Callback function for image replacement

function bfa_image_files($matches) {

	$templateURI = get_template_directory_uri(); 

	return '<img src="' . $templateURI . 

	'/images/icons/' . $matches[1] . '" alt="" />';

}

// Callback function for post meta replacement

function bfa_meta_value($matches) {

	global $post;

	return get_post_meta($post->ID, $matches[1], true);

}

// Date callback

function bfa_parse_date_callback( $matches ) {

	ob_start(); 

		the_time($matches[2]); 

		$date = ob_get_contents(); 

	ob_end_clean();	

	return $date;

}

// Date modified callback

function bfa_parse_date_modified_callback( $matches ) {

	ob_start(); 

		the_modified_time($matches[2]); 

		$date_modified = ob_get_contents(); 

	ob_end_clean();	

	return $date_modified;

}

function bfa_postinfo($postinfo_string) {

	// one theme option needed below for nofollow trackback / RSS links yes/no

	global $bfa_ata, $post;

	/* replace date format escape placeholders(#) with the actual escpae

	character (=backslashes). This function removes all backslashes from

	post info strings to avoid issues with hosts that have magic_quotes_gpc ON.

	But we want to keep the backslashes inside date items, because they are

	needed to escape literal strings inside dates */

	$postinfo_string = str_replace("#", "\\", $postinfo_string);

	$postinfo = $postinfo_string;

	// Author public name

	if ( strpos($postinfo_string,'%author%') !== FALSE ) {

		ob_start(); 

			the_author(); 

			$author = ob_get_contents(); 

		ob_end_clean();

		$postinfo = str_replace("%author%", $author, $postinfo);

	}

	// Public name of Author who last modified a post, since WordPress 2.8. 

	// Check first if function is available (= if this is WP 2.8+)

	if ( function_exists('the_modified_author') ) { 

		if ( strpos($postinfo_string,'%modified-author%') !== FALSE ) {

			ob_start(); 

				the_modified_author(); 

				$modified_author = ob_get_contents(); 

			ob_end_clean();

			$postinfo = str_replace("%modified-author%", $modified_author, $postinfo);

		}

	}

	// Author about yourself

	if ( strpos($postinfo_string,'%author-description%') !== FALSE ) {

		ob_start(); 

			the_author_meta('description'); 

			$author_description = ob_get_contents(); 

		ob_end_clean();

		$postinfo = str_replace("%author-description%", $author_description, $postinfo);

	}

	// Author login name

	if ( strpos($postinfo_string,'%author-login%') !== FALSE ) {

		ob_start(); 

			the_author_meta('user_login'); 

			$author_login = ob_get_contents(); 

		ob_end_clean();

		$postinfo = str_replace("%author-login%", $author_login, $postinfo);

	}

	// Author first name

	if ( strpos($postinfo_string,'%author-firstname%') !== FALSE ) {

		ob_start(); 

			the_author_meta('first_name'); 

			$author_firstname = ob_get_contents(); 

		ob_end_clean();

		$postinfo = str_replace("%author-firstname%", $author_firstname, $postinfo);

	}

	// Author last name

	if ( strpos($postinfo_string,'%author-lastname%') !== FALSE ) {

		ob_start(); 

			the_author_meta('last_name'); 

			$author_lastname = ob_get_contents(); 

		ob_end_clean();

		$postinfo = str_replace("%author-lastname%", $author_lastname, $postinfo);

	}

	// Author nickname

	if ( strpos($postinfo_string,'%author-nickname%') !== FALSE ) {

		ob_start(); 

			the_author_meta('nickname'); 

		 	$author_nickname = ob_get_contents(); 

		ob_end_clean();

		$postinfo = str_replace("%author-nickname%", $author_nickname, $postinfo);

	}

	// Author ID

	if ( strpos($postinfo_string,'%author-id%') !== FALSE ) {

		ob_start(); 

			the_author_meta('ID'); 

			$author_ID = ob_get_contents(); 

		ob_end_clean();

		$postinfo = str_replace("%author-id%", $author_ID, $postinfo);

	}

	// Author email address, clear text in HTML source code

	if ( strpos($postinfo_string,'%author-email-clear%') !== FALSE ) {

		ob_start(); 

			the_author_meta('email'); 

			$author_email_clear = ob_get_contents(); 

		ob_end_clean();

		$postinfo = str_replace("%author-email-clear%", $author_email_clear, $postinfo);

	}

	// Author email address obfuscated

	if ( strpos($postinfo_string,'%author-email%') !== FALSE ) {

		$postinfo = str_replace("%author-email%", antispambot(get_the_author_email()), $postinfo);

	}

	// Author website URL

	if ( strpos($postinfo_string,'%author-url%') !== FALSE ) {

		ob_start(); 

			the_author_meta('url'); 

			$author_url = ob_get_contents(); 

		ob_end_clean();

		$postinfo = str_replace("%author-url%", $author_url, $postinfo);

	}

	// Author website link

	if ( strpos($postinfo_string,'%author-link%') !== FALSE ) {

		ob_start(); 

			the_author_link(); 

			$author_link = ob_get_contents(); 

		ob_end_clean();

		$postinfo = str_replace("%author-link%", $author_link, $postinfo);

	}

	// Author posts archive link

	if ( strpos($postinfo_string,'%author-posts-link%') !== FALSE ) {

		ob_start(); 

			the_author_posts_link(); 

			$author_posts_link = ob_get_contents(); 

		ob_end_clean();

		$postinfo = str_replace("%author-posts-link%", $author_posts_link, $postinfo);

	}

	//  LEGACY: %author-linked% replaced by %author-posts-link% in 3.3.2, but displays the same: Author posts archive link

	if ( strpos($postinfo_string,'%author-linked%') !== FALSE ) {

		ob_start(); 

			the_author_posts_link(); 

			$author_posts_link = ob_get_contents(); 

		ob_end_clean();

		$postinfo = str_replace("%author-linked%", $author_posts_link, $postinfo);

	}

	// Author post count

	if ( strpos($postinfo_string,'%author-post-count%') !== FALSE ) {

		ob_start(); 

			the_author_posts(); 

			$author_post_count = ob_get_contents(); 

		ob_end_clean();

		$postinfo = str_replace("%author-post-count%", $author_post_count, $postinfo);

	}

	// Author AOL Instant Messenger screenname

	if ( strpos($postinfo_string,'%author-aim%') !== FALSE ) {

		ob_start(); 

			the_author_meta('aim'); 

			$author_aim = ob_get_contents(); 

		ob_end_clean();

		$postinfo = str_replace("%author-aim%", $author_aim, $postinfo);

	}

	// Author Yahoo IM ID

	if ( strpos($postinfo_string,'%author-yim%') !== FALSE ) {

		ob_start(); 

			the_author_meta('yim'); 

			$author_yim = ob_get_contents(); 

		ob_end_clean();

		$postinfo = str_replace("%author-yim%", $author_yim, $postinfo);

	}

    // Author Gravatar 

    if (strpos($postinfo_string, '%gravatar%') !== FALSE) { 

        $gravatar = get_avatar(get_the_author_meta('ID'), 30); 

        $postinfo = str_replace("%gravatar%", $gravatar, $postinfo); 

    }  

	// Date & Time

	if ( strpos($postinfo_string,'%date(') !== FALSE ) {

		$postinfo = preg_replace_callback("/%date\((.*?)'(.*?)'(.*?)\)%/is","bfa_parse_date_callback",$postinfo);

	}

	// Date & Time, last modified

	if ( strpos($postinfo_string,'%date-modified(') !== FALSE ) {

		$postinfo = preg_replace_callback("/%date-modified\((.*?)'(.*?)'(.*?)\)%/is","bfa_parse_date_modified_callback",$postinfo);

	}	

	// Tags, linked - since WP 2.3

	if ( strpos($postinfo_string,'%tags-linked') !== FALSE ) {

		while ( strpos($postinfo,'%tags-linked') !== FALSE ) {

			$tag_link_options = preg_match("/(.*)%tags-linked\('(.*?)'(.*?)'(.*?)'(.*?)'(.*?)'(.*)/i",

			$postinfo_string,$tag_link_matches);

			$tags_linked = get_the_tag_list($tag_link_matches[2],	$tag_link_matches[4],

			$tag_link_matches[6]);

			$postinfo = preg_replace("/(.*)%tags-linked\((.*?)\)%(.*)/i", "\${1}" .

			$tags_linked. "\${3}", $postinfo);

		}	

	}

	// Tags, linked. If post has no tags, categories are displayed instead -  since WP 2.3

	if ( strpos($postinfo_string,'%tags-cats-linked') !== FALSE ) {

		while ( strpos($postinfo,'%tags-cats-linked') !== FALSE ) {

			$tag_link_options = preg_match("/(.*)%tags-cats-linked\('(.*?)'(.*?)'(.*?)'(.*?)'(.*?)'(.*)/i",

			$postinfo_string,$tag_link_matches);

			ob_start(); 

				the_tags($tag_link_matches[2], $tag_link_matches[4], $tag_link_matches[6]); 

				$tags_cats_linked = ob_get_contents(); 

			ob_end_clean();

			$postinfo = preg_replace("/(.*)%tags-cats-linked\((.*?)\)%(.*)/i", "\${1}" .

			$tags_cats_linked. "\${3}", $postinfo);

		}

	}

	// Tags, not linked - since WP 2.3

	if ( strpos($postinfo_string,'%tags(') !== FALSE ) {

		while ( strpos($postinfo,'%tags(') !== FALSE ) {

			$tag_options = preg_match("/(.*)%tags\('(.*?)'(.*?)'(.*?)'(.*?)'(.*?)'(.*)/i",

			$postinfo_string,$tag_matches);

			$posttags = get_the_tags();

			if ($posttags) { 

				foreach($posttags as $tag) {

				$tag_list .= $tag->name . $tag_matches[4]; 

				}

				// remove last separator

				$tag_list = preg_replace("/".$tag_matches[4]."$/mi", "", $tag_list);

				$tags = $tag_matches[2] . $tag_list . $tag_matches[6];

			} else { 

				$tags = ""; 

			}

			$postinfo = preg_replace("/(.*)%tags\((.*?)\)%(.*)/i", "\${1}" .$tags.

			"\${3}", $postinfo);

		}		

	}

	// 1st category

	if ( strpos($postinfo_string,'%category%') !== FALSE ) {

		$all_categories = get_the_category(); 

		$category = $all_categories[0]->cat_name;

		$category_notlinked = $category; 

		$postinfo = str_replace("%category%", $category_notlinked, $postinfo);

	}

	// 1st category, linked

	if ( strpos($postinfo_string,'%category-linked%') !== FALSE ) {

		$all_categories = get_the_category(); 

		$category = $all_categories[0]->cat_name;

		$category_linked = '<a class="'.$category . '" href="' . get_category_link($all_categories[0]->cat_ID) .

        '">' . $category . '</a>';

		$postinfo = str_replace("%category-linked%", $category_linked, $postinfo);

	}

	// Categories, linked with class name added 

	$categories_linked = '';

	if ( strpos($postinfo_string,'%categories-linked') !== FALSE ) {

		while ( strpos($postinfo,'%categories-linked') !== FALSE ) {

			$category_linked_separator = preg_match("/(.*)%categories-linked\('(.*?)'\)(.*)/i",

	        $postinfo_string,$category_linked_matches);

			ob_start(); 

			$categories = get_the_category();

			$items_in_categories = count($categories);

			$output = '';

			$categories_count = $items_in_categories;

			if($categories){

				foreach($categories as $category) { 

					$categories_count -= 1;

					if ($categories_count) { 

					  $seperator = $category_linked_matches[2];

					  }

					else {$seperator = '';}

					$categories_linked .= '<a class="'.$category->slug . '" href="'.get_category_link( $category->term_id ).'" title="' . esc_attr( $category->name ) . '">'.$category->cat_name.$seperator.'</a>';

				}

			}

			ob_end_clean();

			$postinfo = preg_replace("/(.*)%categories-linked\((.*?)\)%(.*)/i", "\${1}" .

    	    $categories_linked. "\${3}", $postinfo);

		}

	}

	// Categories, not linked

	if ( strpos($postinfo_string,'%categories(') !== FALSE ) {

		while ( strpos($postinfo,'%categories(') !== FALSE ) {

			$category_separator = preg_match("/(.*)%categories\('(.*?)'\)(.*)/i",

	        $postinfo_string,$category_matches);

			$categories = "";

			foreach((get_the_category()) as $category) { 

				$categories .= $category->cat_name . $category_matches[2]; 

			} 

			// remove last separator

			$categories = preg_replace("/".$category_matches[2]."$/mi", "", $categories);

			$postinfo = preg_replace("/(.*)%categories\((.*?)\)%(.*)/i", "\${1}" .

	        $categories. "\${3}", $postinfo);

		}

	}

	// Comment link

	if ( strpos($postinfo_string,'%comments(') !== FALSE ) {

		while ( strpos($postinfo,'%comments(') !== FALSE ) {

			$comment_options = preg_match("/(.*)%comments\('(.*?)'(.*?)'(.*?)'(.*?)'(.*?)'(.*?)'(.*?)'(.*)/i",

	        $postinfo_string,$comment_matches);

			if ( !comments_open() AND $comment_matches[8] == "dontshow" ) { 

				$comment_link = ''; 

			} else { 

				ob_start(); 

					comments_popup_link($comment_matches[2], $comment_matches[4],

    	     		 $comment_matches[6], 'comments-link', $comment_matches[8]);

					$comment_link = ob_get_contents(); 

				ob_end_clean(); 

			}

			if (!comments_open() ) {

				if ($post->comment_count == 0) {

					$comment_link = '<strong>' . $comment_matches[8] . '</strong>';

				} else {

					$comment_link = $comment_link . ' - <strong>(' . $comment_matches[8] . ')</strong>';

					}

			}

			if ( !comments_open() AND $comment_matches[8] == "dontshow" ) { 

				$comment_link = ''; 

			}

			$postinfo = preg_replace("/(.*)%comments\((.*?)\)%(.*)/i", "\${1}" .

    	    $comment_link. "\${3}", $postinfo);

        }

	}

	// Comments Feed link

	if ( strpos($postinfo_string,'%comments-rss') !== FALSE ) {

		while ( strpos($postinfo,'%comments-rss') !== FALSE ) {

			$comments_rss_link_text = preg_match("/(.*)%comments-rss\('(.*?)'(.*)/i",

	        $postinfo_string,$comments_rss_matches);

			ob_start(); 

				post_comments_feed_link($comments_rss_matches[2]); 

				$comments_rss_link = ob_get_contents(); 

			ob_end_clean();

			// make link nofollow if set in theme options

			if ( $bfa_ata['nofollow'] == "Yes" ) 

				$comments_rss_link = str_replace('href=', 'rel="nofollow" href=', $comments_rss_link);

			$postinfo = preg_replace("/(.*)%comments-rss\((.*?)\)%(.*)/i", "\${1}" .

        	$comments_rss_link. "\${3}", $postinfo);

		}

	}

	// Trackback URL

	if ( strpos($postinfo_string,'%trackback%') !== FALSE ) {

		$trackback_url = trackback_url(FALSE);

		$postinfo = str_replace("%trackback%", $trackback_url, $postinfo);

	}

	// Trackback Link

	if ( strpos($postinfo_string,'%trackback-linked(') !== FALSE ) {

		while ( strpos($postinfo,'%trackback-linked(') !== FALSE ) {

			$trackback_url = trackback_url(FALSE);

			$trackback_link_text = preg_match("/(.*)%trackback-linked\('(.*?)'(.*)/i",

   	     $postinfo_string,$trackback_matches);

			$trackback_link = '<a href="' . $trackback_url . '">' . $trackback_matches[2] . '</a>';

			// make link nofollow if set in theme options

			if ( $bfa_ata['nofollow'] == "Yes" ) {

				$trackback_link = str_replace('href=', 'rel="nofollow" href=', $trackback_link); 

			}

			$postinfo = preg_replace("/(.*)%trackback-linked\((.*?)\)%(.*)/i", "\${1}" .

	        $trackback_link. "\${3}", $postinfo);

		}

	}

	// Trackback RDF

	if ( strpos($postinfo_string,'%trackback-rdf%') !== FALSE ) {

		ob_start();