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I've added a filter to collapse shortcode to an a-tag for better API ingest. #1

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I've added a filter to collapse shortcode to an a-tag for better API ingest. #1

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51 changes: 49 additions & 2 deletions navis-documentcloud.php
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
/***
* Plugin Name: Navis DocumentCloud
* Description: Embed DocumentCloud documents that won't be eaten by the visual editor
* Version: 0.1
* Version: 0.2
* Author: Chris Amico
* License: GPLv2
***/
Expand Down Expand Up @@ -242,6 +242,53 @@ function embed_shortcode($atts, $content, $code) {
";
}
}
}

/**
*
* This is to be run as a filter, we will replace the documentcloud shortcodes with an <a> tag that links
* to the document instead of the cool documentCloud shortcode. This allows us to send the post to an external
* entity (the NPR story API?) for better usability/storage.
*
* @param string $text
* @return string
*/
public static function my_documentCloud_filter($text) {
/**
* I have something like :
* lorem ipsum blah blah blah [documentcloud url=https://www.documentcloud.org/documents/547959-stateimpact-how-to-cover-policy-and-still-be.html format=normal sidebar=false ] more text
*
* and I want to replace the shortcode in there with <a href=mycoolurl>mycoolurl</a> but leave the rest alone
*
*/
$url_default = array(
'url' => null);

//get all the shortcodes possible, then walk through and find the URLs in any documentcloud shortcodes
preg_match_all('/'.get_shortcode_regex().'/', $text, $matches);
$tags = $matches[2];
$args = $matches[3];
$urls = array();
foreach($tags as $i => $tag) {
if ($tag == "documentcloud") {
$atts = shortcode_parse_atts($args[$i]);
$atts = shortcode_atts($url_default, $atts);
extract($atts);
if (!empty($url)){
$a_tag = '<div class=documentcloud><a href="'.$url.'">'.$url.'</a></div>';
$url_pattern = preg_replace('/\//', '\\/', $url);
//the regex looks like '[documentcloud url=' and
// then the URL we're looking at
// then whitespace,
// then a bunch of anything ending in a ']'
$regexp = "\[documentcloud\surl=".$url_pattern."\\s*[A-Z0-9._%+-=\s]*\]";
$text = preg_replace( '/'.$regexp.'/siU', $a_tag , $text);
}
}
}

return $text;
}

}
add_filter( 'npr_ds_shortcode_filter', 'Navis_DocumentCloud::my_documentCloud_filter', 10, 1 );
new Navis_DocumentCloud;