mirror of
https://github.com/WordPress/WordPress.git
synced 2024-08-23 14:23:09 +02:00
git-svn-id: http://svn.automattic.com/wordpress/trunk@6659 1a063a9b-81f0-0310-95a4-ce76da25c4cd
187 lines
4.1 KiB
PHP
187 lines
4.1 KiB
PHP
<?php
|
|
|
|
/*
|
|
|
|
An API for creating shortcode tags that support attributes and enclosed content, such as:
|
|
|
|
[shortcode /]
|
|
[shortcode foo="bar" baz="bing" /]
|
|
[shortcode foo="bar"]content[/shortcode]
|
|
|
|
tag and attrbute parsing regexp code based on the Textpattern tag parser.
|
|
|
|
To apply shortcode tags to content:
|
|
|
|
$out = do_shortcode($content);
|
|
|
|
Simplest example of a shortcode tag using the API:
|
|
|
|
// [footag foo="bar"]
|
|
function footag_func($atts) {
|
|
return "foo = {$atts[foo]}";
|
|
}
|
|
add_shortcode('footag', 'footag_func');
|
|
|
|
Example with nice attribute defaults:
|
|
|
|
// [bartag foo="bar"]
|
|
function bartag_func($atts) {
|
|
extract(shortcode_atts(array(
|
|
'foo' => 'no foo',
|
|
'baz' => 'default baz',
|
|
), $atts));
|
|
|
|
return "foo = {$foo}";
|
|
}
|
|
add_shortcode('bartag', 'bartag_func');
|
|
|
|
Example with enclosed content:
|
|
|
|
// [baztag]content[/baztag]
|
|
function baztag_func($atts, $content='') {
|
|
return "content = $content";
|
|
}
|
|
add_shortcode('baztag', 'baztag_func');
|
|
|
|
*/
|
|
|
|
$shortcode_tags = array();
|
|
|
|
function add_shortcode($tag, $func) {
|
|
global $shortcode_tags;
|
|
|
|
if ( is_callable($func) )
|
|
$shortcode_tags[$tag] = $func;
|
|
}
|
|
|
|
function remove_shortcode($tag) {
|
|
global $shortcode_tags;
|
|
|
|
unset($shortcode_tags[$tag]);
|
|
}
|
|
|
|
function remove_all_shortcodes() {
|
|
global $shortcode_tags;
|
|
|
|
$shortcode_tags = array();
|
|
}
|
|
|
|
function do_shortcode($content) {
|
|
global $shortcode_tags;
|
|
|
|
if (empty($shortcode_tags) || !is_array($shortcode_tags))
|
|
return $content;
|
|
|
|
$tagnames = array_keys($shortcode_tags);
|
|
$tagregexp = join( '|', array_map('preg_quote', $tagnames) );
|
|
|
|
$pattern = '/\[('.$tagregexp.')\b(.*?)(?:(\/))?\](?:(.+?)\[\/\1\])?/s';
|
|
|
|
return preg_replace_callback($pattern, 'do_shortcode_tag', $content);
|
|
}
|
|
|
|
function do_shortcode_tag($m) {
|
|
global $shortcode_tags;
|
|
|
|
$tag = $m[1];
|
|
$attr = shortcode_parse_atts($m[2]);
|
|
|
|
if ( isset($m[4]) ) {
|
|
// enclosing tag - extra parameter
|
|
return call_user_func($shortcode_tags[$tag], $attr, $m[4]);
|
|
} else {
|
|
// self-closing tag
|
|
return call_user_func($shortcode_tags[$tag], $attr);
|
|
}
|
|
}
|
|
|
|
function shortcode_parse_atts($text) {
|
|
$atts = array();
|
|
$pattern = '/(\w+)\s*=\s*"([^"]*)"(?:\s|$)|(\w+)\s*=\s*\'([^\']*)\'(?:\s|$)|(\w+)\s*=\s*([^\s\'"]+)(?:\s|$)/';
|
|
if ( preg_match_all($pattern, $text, $match, PREG_SET_ORDER) ) {
|
|
foreach ($match as $m) {
|
|
if (!empty($m[1]))
|
|
$atts[strtolower($m[1])] = stripcslashes($m[2]);
|
|
elseif (!empty($m[3]))
|
|
$atts[strtolower($m[3])] = stripcslashes($m[4]);
|
|
elseif (!empty($m[5]))
|
|
$atts[strtolower($m[5])] = stripcslashes($m[6]);
|
|
}
|
|
}
|
|
return $atts;
|
|
}
|
|
|
|
function shortcode_atts($pairs, $atts) {
|
|
$out = array();
|
|
foreach($pairs as $name => $default) {
|
|
if ( array_key_exists($name, $atts) )
|
|
$out[$name] = $atts[$name];
|
|
else
|
|
$out[$name] = $default;
|
|
}
|
|
return $out;
|
|
}
|
|
|
|
add_shortcode('gallery', 'gallery_shortcode');
|
|
|
|
function gallery_shortcode($attr) {
|
|
global $post;
|
|
|
|
// Allow plugins/themes to override the default gallery template.
|
|
$output = apply_filters('post_gallery', '', $attr);
|
|
if ( $output != '' )
|
|
return $output;
|
|
|
|
$attachments = get_children("post_parent=$post->ID&post_type=attachment&orderby=\"menu_order ASC, ID ASC\"");
|
|
/*
|
|
foreach ( $attachments as $id => $attachment ) {
|
|
$meta = get_post_custom($id);
|
|
if ( $meta ) foreach ( $meta as $k => $v )
|
|
$attachments[$id]->$k = $v;
|
|
if ( isset($attachments[$id]->_wp_attachment_metadata[0]) )
|
|
$attachments[$id]->meta = unserialize($attachments[$id]->_wp_attachment_metadata[0]);
|
|
}
|
|
*/
|
|
|
|
$output = "
|
|
<style type='text/css'>
|
|
.gallery {
|
|
width: 450px;
|
|
left: 50%;
|
|
margin: auto;
|
|
}
|
|
.gallery div {
|
|
float: left;
|
|
margin-top: 10px;
|
|
text-align: center;
|
|
width: 33%; }
|
|
.gallery img {
|
|
border: 3px solid #cfcfcf;
|
|
}
|
|
</style>
|
|
<div class='gallery'>
|
|
";
|
|
|
|
if ( !empty($attachments) ) foreach ( $attachments as $id => $attachment ) {
|
|
$src = wp_get_attachment_thumb_url($id);
|
|
$href = get_attachment_link($id);
|
|
$output .= "
|
|
<div>
|
|
<a href='$href'><img src='$src' alt='$attachment->post_title' /></a>
|
|
</div>
|
|
";
|
|
if ( ++$i % 3 == 0 )
|
|
$output .= '<br style="clear: both" />';
|
|
}
|
|
|
|
$output .= "
|
|
</div>
|
|
";
|
|
|
|
return $output;
|
|
}
|
|
|
|
add_filter('the_content', 'do_shortcode');
|
|
|
|
?>
|