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Description

Compose shortcode from archive.org book iframe.

Usage

$mixed = jetpack_archiveorg_book_embed_to_shortcode( $content );

Parameters

$content

( string ) required – Post content.

Returns

mixed

Source

File name: jetpack/modules/shortcodes/archiveorg-book.php
Lines:

function jetpack_archiveorg_book_embed_to_shortcode( $content ) {
  if ( ! is_string( $content ) || false === stripos( $content, 'archive.org/stream/' ) ) {
    return $content;
  }

  $regexp = '!<iframe\s+src=[\'"](http|https)://(www.archive|archive)\.org/stream/([^\'"]+)[\'"]((?:\s+\w+(=[\'"][^\'"]*[\'"])?)*)\s></iframe>!i';

  if ( ! preg_match_all( $regexp, $content, $matches, PREG_SET_ORDER ) ) {
    return $content;
  }

  foreach ( $matches as $match ) {
    $url = explode( '?', $match[3] );
    $id  = $url[0];

    $params = $match[4];

    $params = wp_kses_hair( $params, array( 'http' ) );

    $width  = isset( $params['width'] ) ? absint( $params['width']['value'] ) : 0;
    $height = isset( $params['height'] ) ? absint( $params['height']['value'] ) : 0;

    $wh = '';
    if ( $width && $height ) {
      $wh = ' width=' . $width . ' height=' . $height;
    }

    $shortcode = '[archiveorg-book ' . $id . $wh . ']';
    $content   = str_replace( $match[0], $shortcode, $content );
  }

  return $content;
}
 

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