104 lines
2.5 KiB
PHP
Executable File
104 lines
2.5 KiB
PHP
Executable File
<?php
|
|
/*
|
|
* Plugin Name: FootNotes
|
|
* Version: 0.1
|
|
* Plugin URI: http://flatpress.nowhereland.it
|
|
* Description: footnotes in your entry
|
|
* Author: NoWhereMan
|
|
* Author URI: http://flatpress.nowhereland.it
|
|
*/
|
|
define('FOOTNOTES_START', '[footnotes]');
|
|
|
|
class footnotes_class {
|
|
|
|
var $refs = false;
|
|
|
|
var $id = 'noid';
|
|
|
|
function __construct($id) {
|
|
if ($id)
|
|
$this->id = $id;
|
|
}
|
|
|
|
function note($n, $s) {
|
|
$id = $this->id;
|
|
$this->refs = true;
|
|
|
|
return '<li>' . trim($s) . " <a id=\"$id-fn-{$n}\" href=\"#$id-rel-{$n}\" " . "title=\"Back {$n}\">^top</a>" . '</li>';
|
|
}
|
|
|
|
function footnotes($matches) {
|
|
$str = '<div class="footnotes"><h4>Footnotes</h4><ol>';
|
|
|
|
$lines = preg_split('|\[([0-9]+)\]|', $matches [1], -1, PREG_SPLIT_DELIM_CAPTURE);
|
|
|
|
// first array element is always empty - remove
|
|
array_shift($lines);
|
|
|
|
// get each footnote's number ($n) and content ($s) from the array ...
|
|
while (($n = array_shift($lines)) && ($s = array_shift($lines))) {
|
|
// ... and add it to the result string
|
|
$str .= $this->note($n, $s);
|
|
}
|
|
|
|
$str .= '</ol></div>';
|
|
return $str;
|
|
}
|
|
|
|
function references($matches) {
|
|
$n = $matches [1];
|
|
|
|
$id = $this->id;
|
|
|
|
$href_rel = "{$id}-rel-{$n}";
|
|
$href_note = "{$id}-fn-{$n}";
|
|
|
|
return "<sup><a id=\"$href_rel\" href=\"#$href_note\" title=\"note {$n}\">{$n}</a></sup>";
|
|
}
|
|
|
|
function headings($matches) {
|
|
$i = 7 - strlen($matches [1]);
|
|
return "<h$i>{$matches[2]}</h$i>";
|
|
}
|
|
|
|
}
|
|
|
|
function plugin_footnotes_filter($text) {
|
|
global $smarty;
|
|
|
|
$footnotes_obj = new footnotes_class($id = $smarty->get_template_vars('id'));
|
|
|
|
// *STRONG* emphasis
|
|
$text = preg_replace('|(?<!\S)\*(?=\S) (?! \*) (.+?) (?<=\S) \*(?!>\w)|xs', '<strong>$1</strong>', $text);
|
|
// _emphasis_ (italic)
|
|
$text = preg_replace('|(?<!\S)\_(?=\S) (?! \_) (.+?) (?<=\S) \_(?!>\w)|xs', '<em>$1</em>', $text);
|
|
|
|
// heading
|
|
/*
|
|
* $text = preg_replace_callback(
|
|
* '(?<!\w)=(?=\S) (?! =) (.+?) (?<=\S) =(?!>\w)|xs'
|
|
* //'/\n(#{1,6})([^#]+)# * /',
|
|
* array(&$footnotes_obj, 'headings'),
|
|
* $text);
|
|
*
|
|
*/
|
|
|
|
$text = preg_replace_callback('|\n' . preg_quote(FOOTNOTES_START) . '\s*(.*)|sm', array(
|
|
&$footnotes_obj,
|
|
'footnotes'
|
|
), $text);
|
|
|
|
// no [footnotes] references at the bottom of the page: stops
|
|
if (!$footnotes_obj->refs)
|
|
return $text;
|
|
|
|
$text = preg_replace_callback('|\[([0-9]+)\]|', array(
|
|
&$footnotes_obj,
|
|
'references'
|
|
), $text);
|
|
|
|
return $text;
|
|
}
|
|
|
|
add_filter('the_content', 'plugin_footnotes_filter', 0);
|
|
?>
|