Question

wp_spaces_regexp()

Returns the regexp for common whitespace characters.

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description

By default, spaces include new lines, tabs, nbsp entities, and the UTF-8 nbsp. This is designed to replace the PCRE \s sequence. In ticket

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返回值

(string) The spaces regexp.

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源代码

File: wp-includes/formatting.php

function wp_spaces_regexp() {
	static $spaces = '';

	if ( empty( $spaces ) ) {
		/**
		 * Filters the regexp for common whitespace characters.
		 *
		 * This string is substituted for the \s sequence as needed in regular
		 * expressions. For websites not written in English, different characters
		 * may represent whitespace. For websites not encoded in UTF-8, the 0xC2 0xA0
		 * sequence may not be in use.
		 *
		 * @since 4.0.0
		 *
		 * @param string $spaces Regexp pattern for matching common whitespace characters.
		 */
		$spaces = apply_filters( 'wp_spaces_regexp', '[\r\n\t ]|\xC2\xA0| ' );
	}

	return $spaces;
}

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更新日志

Version	description
4.0.0	Introduced.

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相关函数

Uses

• wp-includes/formatting.php: wp_spaces_regexp
• wp-includes/plugin.php: apply_filters()

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Used By

• wp-includes/formatting.php: wptexturize_primes()
• wp-includes/formatting.php: wptexturize()
• wp-includes/formatting.php: shortcode_unautop()
• wp-includes/functions.php: smilies_init()

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User Contributed Notes