WordPressを読む　25-8 /blog/wp-includes/formatting.php 8

2014/11/29 2014/12/09

/blog/wp-includes/formatting.php 8

関数　links_add_target()

function links_add_target( $content, $target = '_blank', $tags = array('a') ) {
	global $_links_add_target;
	$_links_add_target = $target;
	$tags = implode('|', (array)$tags);
	return preg_replace_callback( "!<($tags)([^>]*)>!i", '_links_add_target', $content );
}

function links_add_target( $content, $target = '_blank', $tags = array('a') ) {

global $_links_add_target;

$_links_add_target = $target;

$tags = implode('|', (array)$tags);

return preg_replace_callback( "!<($tags)([^>]*)>!i", '_links_add_target', $content );

}

関数　 _links_add_target()

function _links_add_target( $m ) {
	global $_links_add_target;
	$tag = $m[1];
	$link = preg_replace('|( target=([\'"])(.*?)\2)|i', '', $m[2]);
	return '<' . $tag . $link . ' target="' . esc_attr( $_links_add_target ) . '">';
}

function _links_add_target( $m ) {

global $_links_add_target;

$tag = $m[1];

$link = preg_replace('|( target=([\'"])(.*?)\2)|i', '', $m[2]);

return '<' . $tag . $link . ' target="' . esc_attr( $_links_add_target ) . '">';

}

関数　normalize_whitespace()

function normalize_whitespace( $str ) {
	$str  = trim( $str );
	$str  = str_replace( "\r", "\n", $str );
	$str  = preg_replace( array( '/\n+/', '/[ \t]+/' ), array( "\n", ' ' ), $str );
	return $str;
}

function normalize_whitespace( $str ) {

$str = trim( $str );

$str = str_replace( "\r", "\n", $str );

$str = preg_replace( array( '/\n+/', '/[ \t]+/' ), array( "\n", ' ' ), $str );

return $str;

}

関数　wp_strip_all_tags()

function wp_strip_all_tags($string, $remove_breaks = false) {
	$string = preg_replace( '@<(script|style)[^>]*?>.*?</\\1>@si', '', $string );
	$string = strip_tags($string);

	if ( $remove_breaks )
		$string = preg_replace('/[\r\n\t ]+/', ' ', $string);

	return trim( $string );
}

function wp_strip_all_tags($string, $remove_breaks = false) {

$string = preg_replace( '@<(script|style)[^>]*?>.*?</\\1>@si', '', $string );

$string = strip_tags($string);

if ( $remove_breaks )

$string = preg_replace('/[\r\n\t ]+/', ' ', $string);

return trim( $string );

}

関数　sanitize_text_field()

function sanitize_text_field($str) {
	$filtered = wp_check_invalid_utf8( $str );

	if ( strpos($filtered, '<') !== false ) {
		$filtered = wp_pre_kses_less_than( $filtered );
		// This will strip extra whitespace for us.
		$filtered = wp_strip_all_tags( $filtered, true );
	} else {
		$filtered = trim( preg_replace('/[\r\n\t ]+/', ' ', $filtered) );
	}

	$found = false;
	while ( preg_match('/%[a-f0-9]{2}/i', $filtered, $match) ) {
		$filtered = str_replace($match[0], '', $filtered);
		$found = true;
	}

	if ( $found ) {
		// Strip out the whitespace that may now exist after removing the octets.
		$filtered = trim( preg_replace('/ +/', ' ', $filtered) );
	}

	return apply_filters( 'sanitize_text_field', $filtered, $str );
}

function sanitize_text_field($str) {

$filtered = wp_check_invalid_utf8( $str );

if ( strpos($filtered, '<') !== false ) {

$filtered = wp_pre_kses_less_than( $filtered );

// This will strip extra whitespace for us.

$filtered = wp_strip_all_tags( $filtered, true );

} else {

$filtered = trim( preg_replace('/[\r\n\t ]+/', ' ', $filtered) );

}

$found = false;

while ( preg_match('/%[a-f0-9]{2}/i', $filtered, $match) ) {

$filtered = str_replace($match[0], '', $filtered);

$found = true;

}

if ( $found ) {

// Strip out the whitespace that may now exist after removing the octets.

$filtered = trim( preg_replace('/ +/', ' ', $filtered) );

}

return apply_filters( 'sanitize_text_field', $filtered, $str );

}

関数　wp_basename()

function wp_basename( $path, $suffix = '' ) {
	return urldecode( basename( str_replace( array( '%2F', '%5C' ), '/', urlencode( $path ) ), $suffix ) );
}

function wp_basename( $path, $suffix = '' ) {

return urldecode( basename( str_replace( array( '%2F', '%5C' ), '/', urlencode( $path ) ), $suffix ) );

}

関数　capital_P_dangit()

function capital_P_dangit( $text ) {
	// Simple replacement for titles
	$current_filter = current_filter();
	if ( 'the_title' === $current_filter || 'wp_title' === $current_filter )
		return str_replace( 'Wordpress', 'WordPress', $text );
	// Still here? Use the more judicious replacement
	static $dblq = false;
	if ( false === $dblq )
		$dblq = _x( '&#8220;', 'opening curly double quote' );
	return str_replace(
		array( ' Wordpress', '&#8216;Wordpress', $dblq . 'Wordpress', '>Wordpress', '(Wordpress' ),
		array( ' WordPress', '&#8216;WordPress', $dblq . 'WordPress', '>WordPress', '(WordPress' ),
	$text );
}

function capital_P_dangit( $text ) {

// Simple replacement for titles

$current_filter = current_filter();

if ( 'the_title' === $current_filter || 'wp_title' === $current_filter )

return str_replace( 'Wordpress', 'WordPress', $text );

// Still here? Use the more judicious replacement

static $dblq = false;

if ( false === $dblq )

$dblq = _x( '“', 'opening curly double quote' );

return str_replace(

array( ' Wordpress', '‘Wordpress', $dblq . 'Wordpress', '>Wordpress', '(Wordpress' ),

array( ' WordPress', '‘WordPress', $dblq . 'WordPress', '>WordPress', '(WordPress' ),

$text );

}

関数　sanitize_mime_type()

function sanitize_mime_type( $mime_type ) {
	$sani_mime_type = preg_replace( '/[^-+*.a-zA-Z0-9\/]/', '', $mime_type );
	return apply_filters( 'sanitize_mime_type', $sani_mime_type, $mime_type );
}

function sanitize_mime_type( $mime_type ) {

$sani_mime_type = preg_replace( '/[^-+*.a-zA-Z0-9\/]/', '', $mime_type );

return apply_filters( 'sanitize_mime_type', $sani_mime_type, $mime_type );

}

関数　sanitize_trackback_urls()

function sanitize_trackback_urls( $to_ping ) {
	$urls_to_ping = preg_split( '/[\r\n\t ]/', trim( $to_ping ), -1, PREG_SPLIT_NO_EMPTY );
	foreach ( $urls_to_ping as $k => $url ) {
		if ( !preg_match( '#^https?://.#i', $url ) )
			unset( $urls_to_ping[$k] );
	}
	$urls_to_ping = array_map( 'esc_url_raw', $urls_to_ping );
	$urls_to_ping = implode( "\n", $urls_to_ping );
	return apply_filters( 'sanitize_trackback_urls', $urls_to_ping, $to_ping );
}

function sanitize_trackback_urls( $to_ping ) {

$urls_to_ping = preg_split( '/[\r\n\t ]/', trim( $to_ping ), -1, PREG_SPLIT_NO_EMPTY );

foreach ( $urls_to_ping as $k => $url ) {

if ( !preg_match( '#^https?://.#i', $url ) )

unset( $urls_to_ping[$k] );

}

$urls_to_ping = array_map( 'esc_url_raw', $urls_to_ping );

$urls_to_ping = implode( "\n", $urls_to_ping );

return apply_filters( 'sanitize_trackback_urls', $urls_to_ping, $to_ping );

}

関数　wp_slash()

function wp_slash( $value ) {
	if ( is_array( $value ) ) {
		foreach ( $value as $k => $v ) {
			if ( is_array( $v ) ) {
				$value[$k] = wp_slash( $v );
			} else {
				$value[$k] = addslashes( $v );
			}
		}
	} else {
		$value = addslashes( $value );
	}
	return $value;
}

function wp_slash( $value ) {

if ( is_array( $value ) ) {

foreach ( $value as $k => $v ) {

if ( is_array( $v ) ) {

$value[$k] = wp_slash( $v );

} else {

$value[$k] = addslashes( $v );

}

} else {

$value = addslashes( $value );

}

return $value;

}

関数　wp_unslash()

function wp_unslash( $value ) {
	return stripslashes_deep( $value );
}

function wp_unslash( $value ) {

return stripslashes_deep( $value );

}

関数　get_url_in_content()

function get_url_in_content( $content ) {
	if ( empty( $content ) ) {
		return false;
	}

	if ( preg_match( '/<a\s[^>]*?href=([\'"])(.+?)\1/is', $content, $matches ) ) {
		return esc_url_raw( $matches[2] );
	}
	return false;
}

function get_url_in_content( $content ) {

if ( empty( $content ) ) {

return false;

}

if ( preg_match( '/<a\s[^>]*?href=([\'"])(.+?)\1/is', $content, $matches ) ) {

return esc_url_raw( $matches[2] );

}

return false;

}

関数　wp_spaces_regexp()

function wp_spaces_regexp() {
	static $spaces;

	if ( empty( $spaces ) ) {
		$spaces = apply_filters( 'wp_spaces_regexp', '[\r\n\t ]|\xC2\xA0|&nbsp;' );
	}
	return $spaces;
}

function wp_spaces_regexp() {

static $spaces;

if ( empty( $spaces ) ) {

$spaces = apply_filters( 'wp_spaces_regexp', '[\r\n\t ]|\xC2\xA0| ' );

}

return $spaces;

}

関数　urlencode_deep()

function urlencode_deep($value) {
	$value = is_array($value) ? array_map('urlencode_deep', $value) : urlencode($value);
	return $value;
}

function urlencode_deep($value) {

$value = is_array($value) ? array_map('urlencode_deep', $value) : urlencode($value);

return $value;

}

関数　rawurlencode_deep()

function rawurlencode_deep( $value ) {
	return is_array( $value ) ? array_map( 'rawurlencode_deep', $value ) : rawurlencode( $value );
}

function rawurlencode_deep( $value ) {

return is_array( $value ) ? array_map( 'rawurlencode_deep', $value ) : rawurlencode( $value );

}

関数　antispambot()

function antispambot( $email_address, $hex_encoding = 0 ) {
	$email_no_spam_address = '';
	for ( $i = 0; $i < strlen( $email_address ); $i++ ) {
		$j = rand( 0, 1 + $hex_encoding );
		if ( $j == 0 ) {
			$email_no_spam_address .= '&#' . ord( $email_address[$i] ) . ';';
		} elseif ( $j == 1 ) {
			$email_no_spam_address .= $email_address[$i];
		} elseif ( $j == 2 ) {
			$email_no_spam_address .= '%' . zeroise( dechex( ord( $email_address[$i] ) ), 2 );
		}
	}

	$email_no_spam_address = str_replace( '@', '&#64;', $email_no_spam_address );

	return $email_no_spam_address;
}

function antispambot( $email_address, $hex_encoding = 0 ) {

$email_no_spam_address = '';

for ( $i = 0; $i < strlen( $email_address ); $i++ ) {

$j = rand( 0, 1 + $hex_encoding );

if ( $j == 0 ) {

$email_no_spam_address .= '&#' . ord( $email_address[$i] ) . ';';

} elseif ( $j == 1 ) {

$email_no_spam_address .= $email_address[$i];

} elseif ( $j == 2 ) {

$email_no_spam_address .= '%' . zeroise( dechex( ord( $email_address[$i] ) ), 2 );

}

$email_no_spam_address = str_replace( '@', '@', $email_no_spam_address );

return $email_no_spam_address;

}

関数　_make_url_clickable_cb()

function _make_url_clickable_cb($matches) {
	$url = $matches[2];

	if ( ')' == $matches[3] && strpos( $url, '(' ) ) {
		// If the trailing character is a closing parethesis, and the URL has an opening parenthesis in it, add the closing parenthesis to the URL.
		// Then we can let the parenthesis balancer do its thing below.
		$url .= $matches[3];
		$suffix = '';
	} else {
		$suffix = $matches[3];
	}

	// Include parentheses in the URL only if paired
	while ( substr_count( $url, '(' ) < substr_count( $url, ')' ) ) {
		$suffix = strrchr( $url, ')' ) . $suffix;
		$url = substr( $url, 0, strrpos( $url, ')' ) );
	}

	$url = esc_url($url);
	if ( empty($url) )
		return $matches[0];

	return $matches[1] . "<a href=\"$url\" rel=\"nofollow\">$url</a>" . $suffix;
}

function _make_url_clickable_cb($matches) {

$url = $matches[2];

if ( ')' == $matches[3] && strpos( $url, '(' ) ) {

// If the trailing character is a closing parethesis, and the URL has an opening parenthesis in it, add the closing parenthesis to the URL.

// Then we can let the parenthesis balancer do its thing below.

$url .= $matches[3];

$suffix = '';

} else {

$suffix = $matches[3];

}

// Include parentheses in the URL only if paired

while ( substr_count( $url, '(' ) < substr_count( $url, ')' ) ) {

$suffix = strrchr( $url, ')' ) . $suffix;

$url = substr( $url, 0, strrpos( $url, ')' ) );

}

$url = esc_url($url);

if ( empty($url) )

return $matches[0];

return $matches[1] . "<a href=\"$url\" rel=\"nofollow\">$url</a>" . $suffix;

}

関数　_make_web_ftp_clickable_cb()

function _make_web_ftp_clickable_cb($matches) {
	$ret = '';
	$dest = $matches[2];
	$dest = 'http://' . $dest;
	$dest = esc_url($dest);
	if ( empty($dest) )
		return $matches[0];

	// removed trailing [.,;:)] from URL
	if ( in_array( substr($dest, -1), array('.', ',', ';', ':', ')') ) === true ) {
		$ret = substr($dest, -1);
		$dest = substr($dest, 0, strlen($dest)-1);
	}
	return $matches[1] . "<a href=\"$dest\" rel=\"nofollow\">$dest</a>$ret";
}

function _make_web_ftp_clickable_cb($matches) {

$ret = '';

$dest = $matches[2];

$dest = 'http://' . $dest;

$dest = esc_url($dest);

if ( empty($dest) )

return $matches[0];

// removed trailing [.,;:)] from URL

if ( in_array( substr($dest, -1), array('.', ',', ';', ':', ')') ) === true ) {

$ret = substr($dest, -1);

$dest = substr($dest, 0, strlen($dest)-1);

}

return $matches[1] . "<a href=\"$dest\" rel=\"nofollow\">$dest</a>$ret";

}

関数　_make_email_clickable_cb()

function _make_email_clickable_cb($matches) {
	$email = $matches[2] . '@' . $matches[3];
	return $matches[1] . "<a href=\"mailto:$email\">$email</a>";
}

function _make_email_clickable_cb($matches) {

$email = $matches[2] . '@' . $matches[3];

return $matches[1] . "<a href=\"mailto:$email\">$email</a>";

}

関数　make_clickable()

function make_clickable( $text ) {
	$r = '';
	$textarr = preg_split( '/(<[^<>]+>)/', $text, -1, PREG_SPLIT_DELIM_CAPTURE ); // split out HTML tags
	$nested_code_pre = 0; // Keep track of how many levels link is nested inside <pre> or <code>
	foreach ( $textarr as $piece ) {

		if ( preg_match( '|^<code[\s>]|i', $piece ) || preg_match( '|^<p re[\s>]|i', $piece ) )
			$nested_code_pre++;
		elseif ( ( '</code>' === strtolower( $piece ) || '</p re>' === strtolower( $piece ) ) && $nested_code_pre )
			$nested_code_pre--;

		if ( $nested_code_pre || empty( $piece ) || ( $piece[0] === '<' && ! preg_match( '|^<\s*[\w]{1,20}+://|', $piece ) ) ) {
			$r .= $piece;
			continue;
		}

		// Long strings might contain expensive edge cases ...
		if ( 10000 < strlen( $piece ) ) {
			// ... break it up
			foreach ( _split_str_by_whitespace( $piece, 2100 ) as $chunk ) { // 2100: Extra room for scheme and leading and trailing paretheses
				if ( 2101 < strlen( $chunk ) ) {
					$r .= $chunk; // Too big, no whitespace: bail.
				} else {
					$r .= make_clickable( $chunk );
				}
			}
		} else {
			$ret = " $piece "; // Pad with whitespace to simplify the regexes

			$url_clickable = '~
				([\\s(<.,;:!?])                                        # 1: Leading whitespace, or punctuation
				(                                                      # 2: URL
					[\\w]{1,20}+://                                # Scheme and hier-part prefix
					(?=\S{1,2000}\s)                               # Limit to URLs less than about 2000 characters long
					[\\w\\x80-\\xff#%\\~/@\\[\\]*(+=&$-]*+         # Non-punctuation URL character
					(?:                                            # Unroll the Loop: Only allow puctuation URL character if followed by a non-punctuation URL character
						[\'.,;:!?)]                            # Punctuation URL character
						[\\w\\x80-\\xff#%\\~/@\\[\\]*(+=&$-]++ # Non-punctuation URL character
					)*
				)
				(\)?)                                                  # 3: Trailing closing parenthesis (for parethesis balancing post processing)
			~xS'; // The regex is a non-anchored pattern and does not have a single fixed starting character.
			      // Tell PCRE to spend more time optimizing since, when used on a page load, it will probably be used several times.

			$ret = preg_replace_callback( $url_clickable, '_make_url_clickable_cb', $ret );

			$ret = preg_replace_callback( '#([\s>])((www|ftp)\.[\w\\x80-\\xff\#$%&~/.\-;:=,?@\[\]+]+)#is', '_make_web_ftp_clickable_cb', $ret );
			$ret = preg_replace_callback( '#([\s>])([.0-9a-z_+-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,})#i', '_make_email_clickable_cb', $ret );

			$ret = substr( $ret, 1, -1 ); // Remove our whitespace padding.
			$r .= $ret;
		}
	}

	// Cleanup of accidental links within links
	$r = preg_replace( '#(<a([ \r\n\t]+[^>]+?>|>))<a [^>]+?>([^>]+?)</a></a>#i', "$1$3</a>", $r );
	return $r;
}

function make_clickable( $text ) {

$r = '';

$textarr = preg_split( '/(<[^<>]+>)/', $text, -1, PREG_SPLIT_DELIM_CAPTURE ); // split out HTML tags

$nested_code_pre = 0; // Keep track of how many levels link is nested inside <pre> or <code>

foreach ( $textarr as $piece ) {

if ( preg_match( '|^<code[\s>]|i', $piece ) || preg_match( '|^<p re[\s>]|i', $piece ) )

$nested_code_pre++;

elseif ( ( '</code>' === strtolower( $piece ) || '</p re>' === strtolower( $piece ) ) && $nested_code_pre )

$nested_code_pre--;

if ( $nested_code_pre || empty( $piece ) || ( $piece[0] === '<' && ! preg_match( '|^<\s*[\w]{1,20}+://|', $piece ) ) ) {

$r .= $piece;

continue;

}

// Long strings might contain expensive edge cases ...

if ( 10000 < strlen( $piece ) ) {

// ... break it up

foreach ( _split_str_by_whitespace( $piece, 2100 ) as $chunk ) { // 2100: Extra room for scheme and leading and trailing paretheses

if ( 2101 < strlen( $chunk ) ) {

$r .= $chunk; // Too big, no whitespace: bail.

} else {

$r .= make_clickable( $chunk );

}

} else {

$ret = " $piece "; // Pad with whitespace to simplify the regexes

$url_clickable = '~

([\\s(<.,;:!?]) # 1: Leading whitespace, or punctuation

( # 2: URL

[\\w]{1,20}+:// # Scheme and hier-part prefix

(?=\S{1,2000}\s) # Limit to URLs less than about 2000 characters long

[\\w\\x80-\\xff#%\\~/@\\[\\]*(+=&$-]*+ # Non-punctuation URL character

(?: # Unroll the Loop: Only allow puctuation URL character if followed by a non-punctuation URL character

[\'.,;:!?)] # Punctuation URL character

[\\w\\x80-\\xff#%\\~/@\\[\\]*(+=&$-]++ # Non-punctuation URL character

)

(\)?) # 3: Trailing closing parenthesis (for parethesis balancing post processing)

~xS'; // The regex is a non-anchored pattern and does not have a single fixed starting character.

// Tell PCRE to spend more time optimizing since, when used on a page load, it will probably be used several times.

$ret = preg_replace_callback( $url_clickable, '_make_url_clickable_cb', $ret );

$ret = preg_replace_callback( '#([\s>])((www|ftp)\.[\w\\x80-\\xff\#$%&~/.\-;:=,?@\[\]+]+)#is', '_make_web_ftp_clickable_cb', $ret );

$ret = preg_replace_callback( '#([\s>])([.0-9a-z_+-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,})#i', '_make_email_clickable_cb', $ret );

$ret = substr( $ret, 1, -1 ); // Remove our whitespace padding.

$r .= $ret;

}

// Cleanup of accidental links within links

$r = preg_replace( '#(<a([ \r\n\t]+[^>]+?>|>))<a [^>]+?>([^>]+?)</a></a>#i', "$1$3</a>", $r );

return $r;

}

関数　_split_str_by_whitespace()

function _split_str_by_whitespace( $string, $goal ) {
	$chunks = array();

	$string_nullspace = strtr( $string, "\r\n\t\v\f ", "\000\000\000\000\000\000" );

	while ( $goal < strlen( $string_nullspace ) ) {
		$pos = strrpos( substr( $string_nullspace, 0, $goal + 1 ), "\000" );

		if ( false === $pos ) {
			$pos = strpos( $string_nullspace, "\000", $goal + 1 );
			if ( false === $pos ) {
				break;
			}
		}

		$chunks[] = substr( $string, 0, $pos + 1 );
		$string = substr( $string, $pos + 1 );
		$string_nullspace = substr( $string_nullspace, $pos + 1 );
	}

	if ( $string ) {
		$chunks[] = $string;
	}

	return $chunks;
}

function _split_str_by_whitespace( $string, $goal ) {

$chunks = array();

$string_nullspace = strtr( $string, "\r\n\t\v\f ", "\000\000\000\000\000\000" );

while ( $goal < strlen( $string_nullspace ) ) {

$pos = strrpos( substr( $string_nullspace, 0, $goal + 1 ), "\000" );

if ( false === $pos ) {

$pos = strpos( $string_nullspace, "\000", $goal + 1 );

if ( false === $pos ) {

break;

}

$chunks[] = substr( $string, 0, $pos + 1 );

$string = substr( $string, $pos + 1 );

$string_nullspace = substr( $string_nullspace, $pos + 1 );

}

if ( $string ) {

$chunks[] = $string;

}

return $chunks;

}

関数　wp_rel_nofollow()

function wp_rel_nofollow( $text ) {
	// This is a pre save filter, so text is already escaped.
	$text = stripslashes($text);
	$text = preg_replace_callback('|<a (.+?)>|i', 'wp_rel_nofollow_callback', $text);
	$text = wp_slash($text);
	return $text;
}

function wp_rel_nofollow( $text ) {

// This is a pre save filter, so text is already escaped.

$text = stripslashes($text);

$text = preg_replace_callback('|<a (.+?)>|i', 'wp_rel_nofollow_callback', $text);

$text = wp_slash($text);

return $text;

}

関数　wp_rel_nofollow_callback()

function wp_rel_nofollow_callback( $matches ) {
	$text = $matches[1];
	$text = str_replace(array(' rel="nofollow"', " rel='nofollow'"), '', $text);
	return "<a $text rel=\"nofollow\">";
}

function wp_rel_nofollow_callback( $matches ) {

$text = $matches[1];

$text = str_replace(array(' rel="nofollow"', " rel='nofollow'"), '', $text);

return "<a $text rel=\"nofollow\">";

}

関数　translate_smiley()

function translate_smiley( $matches ) {
	global $wpsmiliestrans;

	if ( count( $matches ) == 0 )
		return '';

	$smiley = trim( reset( $matches ) );
	$img = $wpsmiliestrans[ $smiley ];

	$src_url = apply_filters( 'smilies_src', includes_url( "images/smilies/$img" ), $img, site_url() );

	return sprintf( '<img src="%s" alt="%s" class="wp-smiley" />', esc_url( $src_url ), esc_attr( $smiley ) );
}

function translate_smiley( $matches ) {

global $wpsmiliestrans;

if ( count( $matches ) == 0 )

return '';

$smiley = trim( reset( $matches ) );

$img = $wpsmiliestrans[ $smiley ];

$src_url = apply_filters( 'smilies_src', includes_url( "images/smilies/$img" ), $img, site_url() );

return sprintf( '<img src="%s" alt="%s" class="wp-smiley" />', esc_url( $src_url ), esc_attr( $smiley ) );

}

関数　convert_smilies()

function convert_smilies( $text ) {
	global $wp_smiliessearch;
	$output = '';
	if ( get_option( 'use_smilies' ) && ! empty( $wp_smiliessearch ) ) {
		// HTML loop taken from texturize function, could possible be consolidated
		$textarr = preg_split( '/(<.*>)/U', $text, -1, PREG_SPLIT_DELIM_CAPTURE ); // capture the tags as well as in between
		$stop = count( $textarr );// loop stuff

		// Ignore proessing of specific tags
		$tags_to_ignore = 'code|pre|style|script|textarea';
		$ignore_block_element = '';

		for ( $i = 0; $i < $stop; $i++ ) {
			$content = $textarr[$i];

			// If we're in an ignore block, wait until we find its closing tag
			if ( '' == $ignore_block_element && preg_match( '/^<(' . $tags_to_ignore . ')>/', $content, $matches ) )  {
				$ignore_block_element = $matches[1];
			}

			// If it's not a tag and not in ignore block
			if ( '' ==  $ignore_block_element && strlen( $content ) > 0 && '<' != $content[0] ) {
				$content = preg_replace_callback( $wp_smiliessearch, 'translate_smiley', $content );
			}

			// did we exit ignore block
			if ( '' != $ignore_block_element && '</' . $ignore_block_element . '>' == $content )  {
				$ignore_block_element = '';
			}

			$output .= $content;
		}
	} else {
		// return default text.
		$output = $text;
	}
	return $output;
}

function convert_smilies( $text ) {

global $wp_smiliessearch;

$output = '';

if ( get_option( 'use_smilies' ) && ! empty( $wp_smiliessearch ) ) {

// HTML loop taken from texturize function, could possible be consolidated

$textarr = preg_split( '/(<.*>)/U', $text, -1, PREG_SPLIT_DELIM_CAPTURE ); // capture the tags as well as in between

$stop = count( $textarr );// loop stuff

// Ignore proessing of specific tags

$tags_to_ignore = 'code|pre|style|script|textarea';

$ignore_block_element = '';

for ( $i = 0; $i < $stop; $i++ ) {

$content = $textarr[$i];

// If we're in an ignore block, wait until we find its closing tag

if ( '' == $ignore_block_element && preg_match( '/^<(' . $tags_to_ignore . ')>/', $content, $matches ) ) {

$ignore_block_element = $matches[1];

}

// If it's not a tag and not in ignore block

if ( '' == $ignore_block_element && strlen( $content ) > 0 && '<' != $content[0] ) {

$content = preg_replace_callback( $wp_smiliessearch, 'translate_smiley', $content );

}

// did we exit ignore block

if ( '' != $ignore_block_element && '</' . $ignore_block_element . '>' == $content ) {

$ignore_block_element = '';

}

$output .= $content;

}

} else {

// return default text.

$output = $text;

}

return $output;

}

- Wordpress

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WordPressを読む 25-8 /blog/wp-includes/formatting.php 8

/blog/wp-includes/formatting.php 8

WordPressを読む　25-8 /blog/wp-includes/formatting.php 8