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<?php

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namespace Smush\Core\Parser;

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class Placeholder_Replacement {

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private $placeholders = array();

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/**

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* @var Parser

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private $parser;

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public function __construct() {

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$this->parser = new Parser();

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}

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public function add_placeholders( $markup, $blocks ) {

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foreach ( $blocks as $block ) {

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$key = md5( $block );

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$this->placeholders[ $key ] = $block;

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$markup = str_replace( $block, $key, $markup );

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}

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return $markup;

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}

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public function remove_placeholders( $markup ) {

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foreach ( $this->placeholders as $key => $original ) {

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$markup = str_replace( $key, $original, $markup );

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unset( $this->placeholders[ $key ] );

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}

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return $markup;

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}

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}

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