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<?php

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namespace Yoast\WP\SEO\Helpers;

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/**

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* A helper object for string operations.

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class String_Helper {

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/**

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* Strips all HTML tags including script and style.

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* @param string $text The text to strip the tags from.

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* @return string The processed string.

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public function strip_all_tags( $text ) {

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return \wp_strip_all_tags( $text );

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}

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/**

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* Standardize whitespace in a string.

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* Replace line breaks, carriage returns, tabs with a space, then remove double spaces.

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* @param string $text Text input to standardize.

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* @return string

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public function standardize_whitespace( $text ) {

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return \trim( \str_replace( ' ', ' ', \str_replace( [ "\t", "\n", "\r", "\f" ], ' ', $text ) ) );

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}

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/**

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* First strip out registered and enclosing shortcodes using native WordPress strip_shortcodes function.

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* Then strip out the shortcodes with a filthy regex, because people don't properly register their shortcodes.

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* @param string $text Input string that might contain shortcodes.

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* @return string String without shortcodes.

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public function strip_shortcode( $text ) {

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return \preg_replace( '`\[[^\]]+\]`s', '', \strip_shortcodes( $text ) );

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}

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}

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