142 lines
2.8 KiB
PHP
142 lines
2.8 KiB
PHP
<?php
|
|
declare(strict_types=1);
|
|
|
|
namespace WP_Rocket\Engine\Optimization;
|
|
|
|
trait RegexTrait {
|
|
|
|
/**
|
|
* Array of replaced xmp tags
|
|
*
|
|
* @var array
|
|
*/
|
|
private $xmp_replace = [];
|
|
/**
|
|
* Finds nodes matching the pattern in the HTML.
|
|
*
|
|
* @param string $pattern Pattern to match.
|
|
* @param string $html HTML content.
|
|
* @param string $modifiers Regex modifiers.
|
|
*
|
|
* @return array
|
|
*/
|
|
protected function find( string $pattern, string $html, string $modifiers = 'Umsi' ) {
|
|
preg_match_all( '/' . $pattern . '/' . $modifiers, $html, $matches, PREG_SET_ORDER );
|
|
|
|
if ( empty( $matches ) ) {
|
|
return [];
|
|
}
|
|
|
|
return $matches;
|
|
}
|
|
|
|
/**
|
|
* Hides unwanted blocks from the HTML to be parsed for optimization
|
|
*
|
|
* @since 3.1.4
|
|
*
|
|
* @param string $html HTML content.
|
|
* @return string
|
|
*/
|
|
protected function hide_comments( $html ) {
|
|
$replace = preg_replace( '#<!--\s*noptimize\s*-->.*?<!--\s*/\s*noptimize\s*-->#is', '', $html );
|
|
|
|
if ( null === $replace ) {
|
|
return $html;
|
|
}
|
|
|
|
$replace = preg_replace( '/<!--(.*)-->/Uis', '', $replace );
|
|
|
|
if ( null === $replace ) {
|
|
return $html;
|
|
}
|
|
|
|
return $replace;
|
|
}
|
|
|
|
/**
|
|
* Hides scripts from the HTML to be parsed when removing CSS from it
|
|
*
|
|
* @since 3.10.2
|
|
*
|
|
* @param string $html HTML content.
|
|
*
|
|
* @return string
|
|
*/
|
|
protected function hide_scripts( $html ) {
|
|
$replace = preg_replace( '#<script[^>]*>.*?<\/script\s*>#mis', '', $html );
|
|
|
|
if ( null === $replace ) {
|
|
return $html;
|
|
}
|
|
|
|
return $replace;
|
|
}
|
|
|
|
/**
|
|
* Hides <noscript> blocks from the HTML to be parsed.
|
|
*
|
|
* @param string $html HTML content.
|
|
*
|
|
* @return string
|
|
*/
|
|
protected function hide_noscripts( $html ) {
|
|
$replace = preg_replace( '#<noscript[^>]*>.*?<\/noscript\s*>#mis', '', $html );
|
|
|
|
if ( null === $replace ) {
|
|
return $html;
|
|
}
|
|
|
|
return $replace;
|
|
}
|
|
|
|
/**
|
|
* Replace <xmp> tags in the HTML with comment
|
|
*
|
|
* @since 3.12.3
|
|
*
|
|
* @param string $html HTML content.
|
|
* @return string
|
|
*/
|
|
protected function replace_xmp_tags( $html ) {
|
|
$this->xmp_replace = [];
|
|
$regex = '#<xmp.*>.*</xmp>#Uis';
|
|
$replaced_html = preg_replace_callback( $regex, [ $this, 'replace_xmp' ], $html );
|
|
|
|
if ( empty( $replaced_html ) ) {
|
|
return $html;
|
|
}
|
|
|
|
return $replaced_html;
|
|
}
|
|
|
|
/**
|
|
* Replace xmp with comment
|
|
*
|
|
* @since 3.12.3
|
|
*
|
|
* @param array $match xmp tag.
|
|
* @return string
|
|
*/
|
|
protected function replace_xmp( $match ) {
|
|
$key = sprintf( '<!-- %s -->', uniqid( 'WPR_XMP_' ) );
|
|
$this->xmp_replace[ $key ] = $match[0];
|
|
return $key;
|
|
}
|
|
|
|
/**
|
|
* Restore <xmp> tags
|
|
*
|
|
* @since 3.12.3
|
|
*
|
|
* @param string $html HTML content.
|
|
* @return string
|
|
*/
|
|
protected function restore_xmp_tags( $html ) {
|
|
if ( empty( $this->xmp_replace ) ) {
|
|
return $html;
|
|
}
|
|
|
|
return str_replace( array_keys( $this->xmp_replace ), array_values( $this->xmp_replace ), $html );
|
|
}
|
|
}
|