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- <?php
- /**
- * Main WordPress Formatting API.
- *
- * Handles many functions for formatting output.
- *
- * @package WordPress
- */
- /**
- * Replaces common plain text characters into formatted entities
- *
- * As an example,
- *
- * 'cause today's effort makes it worth tomorrow's "holiday" ...
- *
- * Becomes:
- *
- * ’cause today’s effort makes it worth tomorrow’s “holiday” …
- *
- * Code within certain html blocks are skipped.
- *
- * Do not use this function before the {@see 'init'} action hook; everything will break.
- *
- * @since 0.71
- *
- * @global array $wp_cockneyreplace Array of formatted entities for certain common phrases
- * @global array $shortcode_tags
- * @staticvar array $static_characters
- * @staticvar array $static_replacements
- * @staticvar array $dynamic_characters
- * @staticvar array $dynamic_replacements
- * @staticvar array $default_no_texturize_tags
- * @staticvar array $default_no_texturize_shortcodes
- * @staticvar bool $run_texturize
- * @staticvar string $apos
- * @staticvar string $prime
- * @staticvar string $double_prime
- * @staticvar string $opening_quote
- * @staticvar string $closing_quote
- * @staticvar string $opening_single_quote
- * @staticvar string $closing_single_quote
- * @staticvar string $open_q_flag
- * @staticvar string $open_sq_flag
- * @staticvar string $apos_flag
- *
- * @param string $text The text to be formatted
- * @param bool $reset Set to true for unit testing. Translated patterns will reset.
- * @return string The string replaced with html entities
- */
- function wptexturize( $text, $reset = false ) {
- global $wp_cockneyreplace, $shortcode_tags;
- static $static_characters = null,
- $static_replacements = null,
- $dynamic_characters = null,
- $dynamic_replacements = null,
- $default_no_texturize_tags = null,
- $default_no_texturize_shortcodes = null,
- $run_texturize = true,
- $apos = null,
- $prime = null,
- $double_prime = null,
- $opening_quote = null,
- $closing_quote = null,
- $opening_single_quote = null,
- $closing_single_quote = null,
- $open_q_flag = '<!--oq-->',
- $open_sq_flag = '<!--osq-->',
- $apos_flag = '<!--apos-->';
- // If there's nothing to do, just stop.
- if ( empty( $text ) || false === $run_texturize ) {
- return $text;
- }
- // Set up static variables. Run once only.
- if ( $reset || ! isset( $static_characters ) ) {
- /**
- * Filters whether to skip running wptexturize().
- *
- * Passing false to the filter will effectively short-circuit wptexturize().
- * returning the original text passed to the function instead.
- *
- * The filter runs only once, the first time wptexturize() is called.
- *
- * @since 4.0.0
- *
- * @see wptexturize()
- *
- * @param bool $run_texturize Whether to short-circuit wptexturize().
- */
- $run_texturize = apply_filters( 'run_wptexturize', $run_texturize );
- if ( false === $run_texturize ) {
- return $text;
- }
- /* translators: opening curly double quote */
- $opening_quote = _x( '“', 'opening curly double quote' );
- /* translators: closing curly double quote */
- $closing_quote = _x( '”', 'closing curly double quote' );
- /* translators: apostrophe, for example in 'cause or can't */
- $apos = _x( '’', 'apostrophe' );
- /* translators: prime, for example in 9' (nine feet) */
- $prime = _x( '′', 'prime' );
- /* translators: double prime, for example in 9" (nine inches) */
- $double_prime = _x( '″', 'double prime' );
- /* translators: opening curly single quote */
- $opening_single_quote = _x( '‘', 'opening curly single quote' );
- /* translators: closing curly single quote */
- $closing_single_quote = _x( '’', 'closing curly single quote' );
- /* translators: en dash */
- $en_dash = _x( '–', 'en dash' );
- /* translators: em dash */
- $em_dash = _x( '—', 'em dash' );
- $default_no_texturize_tags = array('pre', 'code', 'kbd', 'style', 'script', 'tt');
- $default_no_texturize_shortcodes = array('code');
- // if a plugin has provided an autocorrect array, use it
- if ( isset($wp_cockneyreplace) ) {
- $cockney = array_keys( $wp_cockneyreplace );
- $cockneyreplace = array_values( $wp_cockneyreplace );
- } else {
- /* translators: This is a comma-separated list of words that defy the syntax of quotations in normal use,
- * for example... 'We do not have enough words yet' ... is a typical quoted phrase. But when we write
- * lines of code 'til we have enough of 'em, then we need to insert apostrophes instead of quotes.
- */
- $cockney = explode( ',', _x( "'tain't,'twere,'twas,'tis,'twill,'til,'bout,'nuff,'round,'cause,'em",
- 'Comma-separated list of words to texturize in your language' ) );
- $cockneyreplace = explode( ',', _x( '’tain’t,’twere,’twas,’tis,’twill,’til,’bout,’nuff,’round,’cause,’em',
- 'Comma-separated list of replacement words in your language' ) );
- }
- $static_characters = array_merge( array( '...', '``', '\'\'', ' (tm)' ), $cockney );
- $static_replacements = array_merge( array( '…', $opening_quote, $closing_quote, ' ™' ), $cockneyreplace );
- // Pattern-based replacements of characters.
- // Sort the remaining patterns into several arrays for performance tuning.
- $dynamic_characters = array( 'apos' => array(), 'quote' => array(), 'dash' => array() );
- $dynamic_replacements = array( 'apos' => array(), 'quote' => array(), 'dash' => array() );
- $dynamic = array();
- $spaces = wp_spaces_regexp();
- // '99' and '99" are ambiguous among other patterns; assume it's an abbreviated year at the end of a quotation.
- if ( "'" !== $apos || "'" !== $closing_single_quote ) {
- $dynamic[ '/\'(\d\d)\'(?=\Z|[.,:;!?)}\-\]]|>|' . $spaces . ')/' ] = $apos_flag . '$1' . $closing_single_quote;
- }
- if ( "'" !== $apos || '"' !== $closing_quote ) {
- $dynamic[ '/\'(\d\d)"(?=\Z|[.,:;!?)}\-\]]|>|' . $spaces . ')/' ] = $apos_flag . '$1' . $closing_quote;
- }
- // '99 '99s '99's (apostrophe) But never '9 or '99% or '999 or '99.0.
- if ( "'" !== $apos ) {
- $dynamic[ '/\'(?=\d\d(?:\Z|(?![%\d]|[.,]\d)))/' ] = $apos_flag;
- }
- // Quoted Numbers like '0.42'
- if ( "'" !== $opening_single_quote && "'" !== $closing_single_quote ) {
- $dynamic[ '/(?<=\A|' . $spaces . ')\'(\d[.,\d]*)\'/' ] = $open_sq_flag . '$1' . $closing_single_quote;
- }
- // Single quote at start, or preceded by (, {, <, [, ", -, or spaces.
- if ( "'" !== $opening_single_quote ) {
- $dynamic[ '/(?<=\A|[([{"\-]|<|' . $spaces . ')\'/' ] = $open_sq_flag;
- }
- // Apostrophe in a word. No spaces, double apostrophes, or other punctuation.
- if ( "'" !== $apos ) {
- $dynamic[ '/(?<!' . $spaces . ')\'(?!\Z|[.,:;!?"\'(){}[\]\-]|&[lg]t;|' . $spaces . ')/' ] = $apos_flag;
- }
- $dynamic_characters['apos'] = array_keys( $dynamic );
- $dynamic_replacements['apos'] = array_values( $dynamic );
- $dynamic = array();
- // Quoted Numbers like "42"
- if ( '"' !== $opening_quote && '"' !== $closing_quote ) {
- $dynamic[ '/(?<=\A|' . $spaces . ')"(\d[.,\d]*)"/' ] = $open_q_flag . '$1' . $closing_quote;
- }
- // Double quote at start, or preceded by (, {, <, [, -, or spaces, and not followed by spaces.
- if ( '"' !== $opening_quote ) {
- $dynamic[ '/(?<=\A|[([{\-]|<|' . $spaces . ')"(?!' . $spaces . ')/' ] = $open_q_flag;
- }
- $dynamic_characters['quote'] = array_keys( $dynamic );
- $dynamic_replacements['quote'] = array_values( $dynamic );
- $dynamic = array();
- // Dashes and spaces
- $dynamic[ '/---/' ] = $em_dash;
- $dynamic[ '/(?<=^|' . $spaces . ')--(?=$|' . $spaces . ')/' ] = $em_dash;
- $dynamic[ '/(?<!xn)--/' ] = $en_dash;
- $dynamic[ '/(?<=^|' . $spaces . ')-(?=$|' . $spaces . ')/' ] = $en_dash;
- $dynamic_characters['dash'] = array_keys( $dynamic );
- $dynamic_replacements['dash'] = array_values( $dynamic );
- }
- // Must do this every time in case plugins use these filters in a context sensitive manner
- /**
- * Filters the list of HTML elements not to texturize.
- *
- * @since 2.8.0
- *
- * @param array $default_no_texturize_tags An array of HTML element names.
- */
- $no_texturize_tags = apply_filters( 'no_texturize_tags', $default_no_texturize_tags );
- /**
- * Filters the list of shortcodes not to texturize.
- *
- * @since 2.8.0
- *
- * @param array $default_no_texturize_shortcodes An array of shortcode names.
- */
- $no_texturize_shortcodes = apply_filters( 'no_texturize_shortcodes', $default_no_texturize_shortcodes );
- $no_texturize_tags_stack = array();
- $no_texturize_shortcodes_stack = array();
- // Look for shortcodes and HTML elements.
- preg_match_all( '@\[/?([^<>&/\[\]\x00-\x20=]++)@', $text, $matches );
- $tagnames = array_intersect( array_keys( $shortcode_tags ), $matches[1] );
- $found_shortcodes = ! empty( $tagnames );
- $shortcode_regex = $found_shortcodes ? _get_wptexturize_shortcode_regex( $tagnames ) : '';
- $regex = _get_wptexturize_split_regex( $shortcode_regex );
- $textarr = preg_split( $regex, $text, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY );
- foreach ( $textarr as &$curl ) {
- // Only call _wptexturize_pushpop_element if $curl is a delimiter.
- $first = $curl[0];
- if ( '<' === $first ) {
- if ( '<!--' === substr( $curl, 0, 4 ) ) {
- // This is an HTML comment delimiter.
- continue;
- } else {
- // This is an HTML element delimiter.
- // Replace each & with & unless it already looks like an entity.
- $curl = preg_replace( '/&(?!#(?:\d+|x[a-f0-9]+);|[a-z1-4]{1,8};)/i', '&', $curl );
- _wptexturize_pushpop_element( $curl, $no_texturize_tags_stack, $no_texturize_tags );
- }
- } elseif ( '' === trim( $curl ) ) {
- // This is a newline between delimiters. Performance improves when we check this.
- continue;
- } elseif ( '[' === $first && $found_shortcodes && 1 === preg_match( '/^' . $shortcode_regex . '$/', $curl ) ) {
- // This is a shortcode delimiter.
- if ( '[[' !== substr( $curl, 0, 2 ) && ']]' !== substr( $curl, -2 ) ) {
- // Looks like a normal shortcode.
- _wptexturize_pushpop_element( $curl, $no_texturize_shortcodes_stack, $no_texturize_shortcodes );
- } else {
- // Looks like an escaped shortcode.
- continue;
- }
- } elseif ( empty( $no_texturize_shortcodes_stack ) && empty( $no_texturize_tags_stack ) ) {
- // This is neither a delimiter, nor is this content inside of no_texturize pairs. Do texturize.
- $curl = str_replace( $static_characters, $static_replacements, $curl );
- if ( false !== strpos( $curl, "'" ) ) {
- $curl = preg_replace( $dynamic_characters['apos'], $dynamic_replacements['apos'], $curl );
- $curl = wptexturize_primes( $curl, "'", $prime, $open_sq_flag, $closing_single_quote );
- $curl = str_replace( $apos_flag, $apos, $curl );
- $curl = str_replace( $open_sq_flag, $opening_single_quote, $curl );
- }
- if ( false !== strpos( $curl, '"' ) ) {
- $curl = preg_replace( $dynamic_characters['quote'], $dynamic_replacements['quote'], $curl );
- $curl = wptexturize_primes( $curl, '"', $double_prime, $open_q_flag, $closing_quote );
- $curl = str_replace( $open_q_flag, $opening_quote, $curl );
- }
- if ( false !== strpos( $curl, '-' ) ) {
- $curl = preg_replace( $dynamic_characters['dash'], $dynamic_replacements['dash'], $curl );
- }
- // 9x9 (times), but never 0x9999
- if ( 1 === preg_match( '/(?<=\d)x\d/', $curl ) ) {
- // Searching for a digit is 10 times more expensive than for the x, so we avoid doing this one!
- $curl = preg_replace( '/\b(\d(?(?<=0)[\d\.,]+|[\d\.,]*))x(\d[\d\.,]*)\b/', '$1×$2', $curl );
- }
- // Replace each & with & unless it already looks like an entity.
- $curl = preg_replace( '/&(?!#(?:\d+|x[a-f0-9]+);|[a-z1-4]{1,8};)/i', '&', $curl );
- }
- }
- return implode( '', $textarr );
- }
- /**
- * Implements a logic tree to determine whether or not "7'." represents seven feet,
- * then converts the special char into either a prime char or a closing quote char.
- *
- * @since 4.3.0
- *
- * @param string $haystack The plain text to be searched.
- * @param string $needle The character to search for such as ' or ".
- * @param string $prime The prime char to use for replacement.
- * @param string $open_quote The opening quote char. Opening quote replacement must be
- * accomplished already.
- * @param string $close_quote The closing quote char to use for replacement.
- * @return string The $haystack value after primes and quotes replacements.
- */
- function wptexturize_primes( $haystack, $needle, $prime, $open_quote, $close_quote ) {
- $spaces = wp_spaces_regexp();
- $flag = '<!--wp-prime-or-quote-->';
- $quote_pattern = "/$needle(?=\\Z|[.,:;!?)}\\-\\]]|>|" . $spaces . ")/";
- $prime_pattern = "/(?<=\\d)$needle/";
- $flag_after_digit = "/(?<=\\d)$flag/";
- $flag_no_digit = "/(?<!\\d)$flag/";
- $sentences = explode( $open_quote, $haystack );
- foreach ( $sentences as $key => &$sentence ) {
- if ( false === strpos( $sentence, $needle ) ) {
- continue;
- } elseif ( 0 !== $key && 0 === substr_count( $sentence, $close_quote ) ) {
- $sentence = preg_replace( $quote_pattern, $flag, $sentence, -1, $count );
- if ( $count > 1 ) {
- // This sentence appears to have multiple closing quotes. Attempt Vulcan logic.
- $sentence = preg_replace( $flag_no_digit, $close_quote, $sentence, -1, $count2 );
- if ( 0 === $count2 ) {
- // Try looking for a quote followed by a period.
- $count2 = substr_count( $sentence, "$flag." );
- if ( $count2 > 0 ) {
- // Assume the rightmost quote-period match is the end of quotation.
- $pos = strrpos( $sentence, "$flag." );
- } else {
- // When all else fails, make the rightmost candidate a closing quote.
- // This is most likely to be problematic in the context of bug #18549.
- $pos = strrpos( $sentence, $flag );
- }
- $sentence = substr_replace( $sentence, $close_quote, $pos, strlen( $flag ) );
- }
- // Use conventional replacement on any remaining primes and quotes.
- $sentence = preg_replace( $prime_pattern, $prime, $sentence );
- $sentence = preg_replace( $flag_after_digit, $prime, $sentence );
- $sentence = str_replace( $flag, $close_quote, $sentence );
- } elseif ( 1 == $count ) {
- // Found only one closing quote candidate, so give it priority over primes.
- $sentence = str_replace( $flag, $close_quote, $sentence );
- $sentence = preg_replace( $prime_pattern, $prime, $sentence );
- } else {
- // No closing quotes found. Just run primes pattern.
- $sentence = preg_replace( $prime_pattern, $prime, $sentence );
- }
- } else {
- $sentence = preg_replace( $prime_pattern, $prime, $sentence );
- $sentence = preg_replace( $quote_pattern, $close_quote, $sentence );
- }
- if ( '"' == $needle && false !== strpos( $sentence, '"' ) ) {
- $sentence = str_replace( '"', $close_quote, $sentence );
- }
- }
- return implode( $open_quote, $sentences );
- }
- /**
- * Search for disabled element tags. Push element to stack on tag open and pop
- * on tag close.
- *
- * Assumes first char of $text is tag opening and last char is tag closing.
- * Assumes second char of $text is optionally '/' to indicate closing as in </html>.
- *
- * @since 2.9.0
- * @access private
- *
- * @param string $text Text to check. Must be a tag like `<html>` or `[shortcode]`.
- * @param array $stack List of open tag elements.
- * @param array $disabled_elements The tag names to match against. Spaces are not allowed in tag names.
- */
- function _wptexturize_pushpop_element( $text, &$stack, $disabled_elements ) {
- // Is it an opening tag or closing tag?
- if ( isset( $text[1] ) && '/' !== $text[1] ) {
- $opening_tag = true;
- $name_offset = 1;
- } elseif ( 0 == count( $stack ) ) {
- // Stack is empty. Just stop.
- return;
- } else {
- $opening_tag = false;
- $name_offset = 2;
- }
- // Parse out the tag name.
- $space = strpos( $text, ' ' );
- if ( false === $space ) {
- $space = -1;
- } else {
- $space -= $name_offset;
- }
- $tag = substr( $text, $name_offset, $space );
- // Handle disabled tags.
- if ( in_array( $tag, $disabled_elements ) ) {
- if ( $opening_tag ) {
- /*
- * This disables texturize until we find a closing tag of our type
- * (e.g. <pre>) even if there was invalid nesting before that
- *
- * Example: in the case <pre>sadsadasd</code>"baba"</pre>
- * "baba" won't be texturize
- */
- array_push( $stack, $tag );
- } elseif ( end( $stack ) == $tag ) {
- array_pop( $stack );
- }
- }
- }
- /**
- * Replaces double line-breaks with paragraph elements.
- *
- * A group of regex replaces used to identify text formatted with newlines and
- * replace double line-breaks with HTML paragraph tags. The remaining line-breaks
- * after conversion become <<br />> tags, unless $br is set to '0' or 'false'.
- *
- * @since 0.71
- *
- * @param string $pee The text which has to be formatted.
- * @param bool $br Optional. If set, this will convert all remaining line-breaks
- * after paragraphing. Default true.
- * @return string Text which has been converted into correct paragraph tags.
- */
- function wpautop( $pee, $br = true ) {
- $pre_tags = array();
- if ( trim($pee) === '' )
- return '';
- // Just to make things a little easier, pad the end.
- $pee = $pee . "\n";
- /*
- * Pre tags shouldn't be touched by autop.
- * Replace pre tags with placeholders and bring them back after autop.
- */
- if ( strpos($pee, '<pre') !== false ) {
- $pee_parts = explode( '</pre>', $pee );
- $last_pee = array_pop($pee_parts);
- $pee = '';
- $i = 0;
- foreach ( $pee_parts as $pee_part ) {
- $start = strpos($pee_part, '<pre');
- // Malformed html?
- if ( $start === false ) {
- $pee .= $pee_part;
- continue;
- }
- $name = "<pre wp-pre-tag-$i></pre>";
- $pre_tags[$name] = substr( $pee_part, $start ) . '</pre>';
- $pee .= substr( $pee_part, 0, $start ) . $name;
- $i++;
- }
- $pee .= $last_pee;
- }
- // Change multiple <br>s into two line breaks, which will turn into paragraphs.
- $pee = preg_replace('|<br\s*/?>\s*<br\s*/?>|', "\n\n", $pee);
- $allblocks = '(?:table|thead|tfoot|caption|col|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|form|map|area|blockquote|address|math|style|p|h[1-6]|hr|fieldset|legend|section|article|aside|hgroup|header|footer|nav|figure|figcaption|details|menu|summary)';
- // Add a double line break above block-level opening tags.
- $pee = preg_replace('!(<' . $allblocks . '[\s/>])!', "\n\n$1", $pee);
- // Add a double line break below block-level closing tags.
- $pee = preg_replace('!(</' . $allblocks . '>)!', "$1\n\n", $pee);
- // Standardize newline characters to "\n".
- $pee = str_replace(array("\r\n", "\r"), "\n", $pee);
- // Find newlines in all elements and add placeholders.
- $pee = wp_replace_in_html_tags( $pee, array( "\n" => " <!-- wpnl --> " ) );
- // Collapse line breaks before and after <option> elements so they don't get autop'd.
- if ( strpos( $pee, '<option' ) !== false ) {
- $pee = preg_replace( '|\s*<option|', '<option', $pee );
- $pee = preg_replace( '|</option>\s*|', '</option>', $pee );
- }
- /*
- * Collapse line breaks inside <object> elements, before <param> and <embed> elements
- * so they don't get autop'd.
- */
- if ( strpos( $pee, '</object>' ) !== false ) {
- $pee = preg_replace( '|(<object[^>]*>)\s*|', '$1', $pee );
- $pee = preg_replace( '|\s*</object>|', '</object>', $pee );
- $pee = preg_replace( '%\s*(</?(?:param|embed)[^>]*>)\s*%', '$1', $pee );
- }
- /*
- * Collapse line breaks inside <audio> and <video> elements,
- * before and after <source> and <track> elements.
- */
- if ( strpos( $pee, '<source' ) !== false || strpos( $pee, '<track' ) !== false ) {
- $pee = preg_replace( '%([<\[](?:audio|video)[^>\]]*[>\]])\s*%', '$1', $pee );
- $pee = preg_replace( '%\s*([<\[]/(?:audio|video)[>\]])%', '$1', $pee );
- $pee = preg_replace( '%\s*(<(?:source|track)[^>]*>)\s*%', '$1', $pee );
- }
- // Collapse line breaks before and after <figcaption> elements.
- if ( strpos( $pee, '<figcaption' ) !== false ) {
- $pee = preg_replace( '|\s*(<figcaption[^>]*>)|', '$1', $pee );
- $pee = preg_replace( '|</figcaption>\s*|', '</figcaption>', $pee );
- }
- // Remove more than two contiguous line breaks.
- $pee = preg_replace("/\n\n+/", "\n\n", $pee);
- // Split up the contents into an array of strings, separated by double line breaks.
- $pees = preg_split('/\n\s*\n/', $pee, -1, PREG_SPLIT_NO_EMPTY);
- // Reset $pee prior to rebuilding.
- $pee = '';
- // Rebuild the content as a string, wrapping every bit with a <p>.
- foreach ( $pees as $tinkle ) {
- $pee .= '<p>' . trim($tinkle, "\n") . "</p>\n";
- }
- // Under certain strange conditions it could create a P of entirely whitespace.
- $pee = preg_replace('|<p>\s*</p>|', '', $pee);
- // Add a closing <p> inside <div>, <address>, or <form> tag if missing.
- $pee = preg_replace('!<p>([^<]+)</(div|address|form)>!', "<p>$1</p></$2>", $pee);
- // If an opening or closing block element tag is wrapped in a <p>, unwrap it.
- $pee = preg_replace('!<p>\s*(</?' . $allblocks . '[^>]*>)\s*</p>!', "$1", $pee);
- // In some cases <li> may get wrapped in <p>, fix them.
- $pee = preg_replace("|<p>(<li.+?)</p>|", "$1", $pee);
- // If a <blockquote> is wrapped with a <p>, move it inside the <blockquote>.
- $pee = preg_replace('|<p><blockquote([^>]*)>|i', "<blockquote$1><p>", $pee);
- $pee = str_replace('</blockquote></p>', '</p></blockquote>', $pee);
- // If an opening or closing block element tag is preceded by an opening <p> tag, remove it.
- $pee = preg_replace('!<p>\s*(</?' . $allblocks . '[^>]*>)!', "$1", $pee);
- // If an opening or closing block element tag is followed by a closing <p> tag, remove it.
- $pee = preg_replace('!(</?' . $allblocks . '[^>]*>)\s*</p>!', "$1", $pee);
- // Optionally insert line breaks.
- if ( $br ) {
- // Replace newlines that shouldn't be touched with a placeholder.
- $pee = preg_replace_callback('/<(script|style).*?<\/\\1>/s', '_autop_newline_preservation_helper', $pee);
- // Normalize <br>
- $pee = str_replace( array( '<br>', '<br/>' ), '<br />', $pee );
- // Replace any new line characters that aren't preceded by a <br /> with a <br />.
- $pee = preg_replace('|(?<!<br />)\s*\n|', "<br />\n", $pee);
- // Replace newline placeholders with newlines.
- $pee = str_replace('<WPPreserveNewline />', "\n", $pee);
- }
- // If a <br /> tag is after an opening or closing block tag, remove it.
- $pee = preg_replace('!(</?' . $allblocks . '[^>]*>)\s*<br />!', "$1", $pee);
- // If a <br /> tag is before a subset of opening or closing block tags, remove it.
- $pee = preg_replace('!<br />(\s*</?(?:p|li|div|dl|dd|dt|th|pre|td|ul|ol)[^>]*>)!', '$1', $pee);
- $pee = preg_replace( "|\n</p>$|", '</p>', $pee );
- // Replace placeholder <pre> tags with their original content.
- if ( !empty($pre_tags) )
- $pee = str_replace(array_keys($pre_tags), array_values($pre_tags), $pee);
- // Restore newlines in all elements.
- if ( false !== strpos( $pee, '<!-- wpnl -->' ) ) {
- $pee = str_replace( array( ' <!-- wpnl --> ', '<!-- wpnl -->' ), "\n", $pee );
- }
- return $pee;
- }
- /**
- * Separate HTML elements and comments from the text.
- *
- * @since 4.2.4
- *
- * @param string $input The text which has to be formatted.
- * @return array The formatted text.
- */
- function wp_html_split( $input ) {
- return preg_split( get_html_split_regex(), $input, -1, PREG_SPLIT_DELIM_CAPTURE );
- }
- /**
- * Retrieve the regular expression for an HTML element.
- *
- * @since 4.4.0
- *
- * @staticvar string $regex
- *
- * @return string The regular expression
- */
- function get_html_split_regex() {
- static $regex;
- if ( ! isset( $regex ) ) {
- $comments =
- '!' // Start of comment, after the <.
- . '(?:' // Unroll the loop: Consume everything until --> is found.
- . '-(?!->)' // Dash not followed by end of comment.
- . '[^\-]*+' // Consume non-dashes.
- . ')*+' // Loop possessively.
- . '(?:-->)?'; // End of comment. If not found, match all input.
- $cdata =
- '!\[CDATA\[' // Start of comment, after the <.
- . '[^\]]*+' // Consume non-].
- . '(?:' // Unroll the loop: Consume everything until ]]> is found.
- . '](?!]>)' // One ] not followed by end of comment.
- . '[^\]]*+' // Consume non-].
- . ')*+' // Loop possessively.
- . '(?:]]>)?'; // End of comment. If not found, match all input.
- $escaped =
- '(?=' // Is the element escaped?
- . '!--'
- . '|'
- . '!\[CDATA\['
- . ')'
- . '(?(?=!-)' // If yes, which type?
- . $comments
- . '|'
- . $cdata
- . ')';
- $regex =
- '/(' // Capture the entire match.
- . '<' // Find start of element.
- . '(?' // Conditional expression follows.
- . $escaped // Find end of escaped element.
- . '|' // ... else ...
- . '[^>]*>?' // Find end of normal element.
- . ')'
- . ')/';
- }
- return $regex;
- }
- /**
- * Retrieve the combined regular expression for HTML and shortcodes.
- *
- * @access private
- * @ignore
- * @internal This function will be removed in 4.5.0 per Shortcode API Roadmap.
- * @since 4.4.0
- *
- * @staticvar string $html_regex
- *
- * @param string $shortcode_regex The result from _get_wptexturize_shortcode_regex(). Optional.
- * @return string The regular expression
- */
- function _get_wptexturize_split_regex( $shortcode_regex = '' ) {
- static $html_regex;
- if ( ! isset( $html_regex ) ) {
- $comment_regex =
- '!' // Start of comment, after the <.
- . '(?:' // Unroll the loop: Consume everything until --> is found.
- . '-(?!->)' // Dash not followed by end of comment.
- . '[^\-]*+' // Consume non-dashes.
- . ')*+' // Loop possessively.
- . '(?:-->)?'; // End of comment. If not found, match all input.
- $html_regex = // Needs replaced with wp_html_split() per Shortcode API Roadmap.
- '<' // Find start of element.
- . '(?(?=!--)' // Is this a comment?
- . $comment_regex // Find end of comment.
- . '|'
- . '[^>]*>?' // Find end of element. If not found, match all input.
- . ')';
- }
- if ( empty( $shortcode_regex ) ) {
- $regex = '/(' . $html_regex . ')/';
- } else {
- $regex = '/(' . $html_regex . '|' . $shortcode_regex . ')/';
- }
- return $regex;
- }
- /**
- * Retrieve the regular expression for shortcodes.
- *
- * @access private
- * @ignore
- * @internal This function will be removed in 4.5.0 per Shortcode API Roadmap.
- * @since 4.4.0
- *
- * @param array $tagnames List of shortcodes to find.
- * @return string The regular expression
- */
- function _get_wptexturize_shortcode_regex( $tagnames ) {
- $tagregexp = join( '|', array_map( 'preg_quote', $tagnames ) );
- $tagregexp = "(?:$tagregexp)(?=[\\s\\]\\/])"; // Excerpt of get_shortcode_regex().
- $regex =
- '\[' // Find start of shortcode.
- . '[\/\[]?' // Shortcodes may begin with [/ or [[
- . $tagregexp // Only match registered shortcodes, because performance.
- . '(?:'
- . '[^\[\]<>]+' // Shortcodes do not contain other shortcodes. Quantifier critical.
- . '|'
- . '<[^\[\]>]*>' // HTML elements permitted. Prevents matching ] before >.
- . ')*+' // Possessive critical.
- . '\]' // Find end of shortcode.
- . '\]?'; // Shortcodes may end with ]]
- return $regex;
- }
- /**
- * Replace characters or phrases within HTML elements only.
- *
- * @since 4.2.3
- *
- * @param string $haystack The text which has to be formatted.
- * @param array $replace_pairs In the form array('from' => 'to', ...).
- * @return string The formatted text.
- */
- function wp_replace_in_html_tags( $haystack, $replace_pairs ) {
- // Find all elements.
- $textarr = wp_html_split( $haystack );
- $changed = false;
- // Optimize when searching for one item.
- if ( 1 === count( $replace_pairs ) ) {
- // Extract $needle and $replace.
- foreach ( $replace_pairs as $needle => $replace );
- // Loop through delimiters (elements) only.
- for ( $i = 1, $c = count( $textarr ); $i < $c; $i += 2 ) {
- if ( false !== strpos( $textarr[$i], $needle ) ) {
- $textarr[$i] = str_replace( $needle, $replace, $textarr[$i] );
- $changed = true;
- }
- }
- } else {
- // Extract all $needles.
- $needles = array_keys( $replace_pairs );
- // Loop through delimiters (elements) only.
- for ( $i = 1, $c = count( $textarr ); $i < $c; $i += 2 ) {
- foreach ( $needles as $needle ) {
- if ( false !== strpos( $textarr[$i], $needle ) ) {
- $textarr[$i] = strtr( $textarr[$i], $replace_pairs );
- $changed = true;
- // After one strtr() break out of the foreach loop and look at next element.
- break;
- }
- }
- }
- }
- if ( $changed ) {
- $haystack = implode( $textarr );
- }
- return $haystack;
- }
- /**
- * Newline preservation help function for wpautop
- *
- * @since 3.1.0
- * @access private
- *
- * @param array $matches preg_replace_callback matches array
- * @return string
- */
- function _autop_newline_preservation_helper( $matches ) {
- return str_replace( "\n", "<WPPreserveNewline />", $matches[0] );
- }
- /**
- * Don't auto-p wrap shortcodes that stand alone
- *
- * Ensures that shortcodes are not wrapped in `<p>...</p>`.
- *
- * @since 2.9.0
- *
- * @global array $shortcode_tags
- *
- * @param string $pee The content.
- * @return string The filtered content.
- */
- function shortcode_unautop( $pee ) {
- global $shortcode_tags;
- if ( empty( $shortcode_tags ) || !is_array( $shortcode_tags ) ) {
- return $pee;
- }
- $tagregexp = join( '|', array_map( 'preg_quote', array_keys( $shortcode_tags ) ) );
- $spaces = wp_spaces_regexp();
- $pattern =
- '/'
- . '<p>' // Opening paragraph
- . '(?:' . $spaces . ')*+' // Optional leading whitespace
- . '(' // 1: The shortcode
- . '\\[' // Opening bracket
- . "($tagregexp)" // 2: Shortcode name
- . '(?![\\w-])' // Not followed by word character or hyphen
- // Unroll the loop: Inside the opening shortcode tag
- . '[^\\]\\/]*' // Not a closing bracket or forward slash
- . '(?:'
- . '\\/(?!\\])' // A forward slash not followed by a closing bracket
- . '[^\\]\\/]*' // Not a closing bracket or forward slash
- . ')*?'
- . '(?:'
- . '\\/\\]' // Self closing tag and closing bracket
- . '|'
- . '\\]' // Closing bracket
- . '(?:' // Unroll the loop: Optionally, anything between the opening and closing shortcode tags
- . '[^\\[]*+' // Not an opening bracket
- . '(?:'
- . '\\[(?!\\/\\2\\])' // An opening bracket not followed by the closing shortcode tag
- . '[^\\[]*+' // Not an opening bracket
- . ')*+'
- . '\\[\\/\\2\\]' // Closing shortcode tag
- . ')?'
- . ')'
- . ')'
- . '(?:' . $spaces . ')*+' // optional trailing whitespace
- . '<\\/p>' // closing paragraph
- . '/';
- return preg_replace( $pattern, '$1', $pee );
- }
- /**
- * Checks to see if a string is utf8 encoded.
- *
- * NOTE: This function checks for 5-Byte sequences, UTF8
- * has Bytes Sequences with a maximum length of 4.
- *
- * @author bmorel at ssi dot fr (modified)
- * @since 1.2.1
- *
- * @param string $str The string to be checked
- * @return bool True if $str fits a UTF-8 model, false otherwise.
- */
- function seems_utf8( $str ) {
- mbstring_binary_safe_encoding();
- $length = strlen($str);
- reset_mbstring_encoding();
- for ($i=0; $i < $length; $i++) {
- $c = ord($str[$i]);
- if ($c < 0x80) $n = 0; // 0bbbbbbb
- elseif (($c & 0xE0) == 0xC0) $n=1; // 110bbbbb
- elseif (($c & 0xF0) == 0xE0) $n=2; // 1110bbbb
- elseif (($c & 0xF8) == 0xF0) $n=3; // 11110bbb
- elseif (($c & 0xFC) == 0xF8) $n=4; // 111110bb
- elseif (($c & 0xFE) == 0xFC) $n=5; // 1111110b
- else return false; // Does not match any model
- for ($j=0; $j<$n; $j++) { // n bytes matching 10bbbbbb follow ?
- if ((++$i == $length) || ((ord($str[$i]) & 0xC0) != 0x80))
- return false;
- }
- }
- return true;
- }
- /**
- * Converts a number of special characters into their HTML entities.
- *
- * Specifically deals with: &, <, >, ", and '.
- *
- * $quote_style can be set to ENT_COMPAT to encode " to
- * ", or ENT_QUOTES to do both. Default is ENT_NOQUOTES where no quotes are encoded.
- *
- * @since 1.2.2
- * @access private
- *
- * @staticvar string $_charset
- *
- * @param string $string The text which is to be encoded.
- * @param int|string $quote_style Optional. Converts double quotes if set to ENT_COMPAT,
- * both single and double if set to ENT_QUOTES or none if set to ENT_NOQUOTES.
- * Also compatible with old values; converting single quotes if set to 'single',
- * double if set to 'double' or both if otherwise set.
- * Default is ENT_NOQUOTES.
- * @param string $charset Optional. The character encoding of the string. Default is false.
- * @param bool $double_encode Optional. Whether to encode existing html entities. Default is false.
- * @return string The encoded text with HTML entities.
- */
- function _wp_specialchars( $string, $quote_style = ENT_NOQUOTES, $charset = false, $double_encode = false ) {
- $string = (string) $string;
- if ( 0 === strlen( $string ) )
- return '';
- // Don't bother if there are no specialchars - saves some processing
- if ( ! preg_match( '/[&<>"\']/', $string ) )
- return $string;
- // Account for the previous behaviour of the function when the $quote_style is not an accepted value
- if ( empty( $quote_style ) )
- $quote_style = ENT_NOQUOTES;
- elseif ( ! in_array( $quote_style, array( 0, 2, 3, 'single', 'double' ), true ) )
- $quote_style = ENT_QUOTES;
- // Store the site charset as a static to avoid multiple calls to wp_load_alloptions()
- if ( ! $charset ) {
- static $_charset = null;
- if ( ! isset( $_charset ) ) {
- $alloptions = wp_load_alloptions();
- $_charset = isset( $alloptions['blog_charset'] ) ? $alloptions['blog_charset'] : '';
- }
- $charset = $_charset;
- }
- if ( in_array( $charset, array( 'utf8', 'utf-8', 'UTF8' ) ) )
- $charset = 'UTF-8';
- $_quote_style = $quote_style;
- if ( $quote_style === 'double' ) {
- $quote_style = ENT_COMPAT;
- $_quote_style = ENT_COMPAT;
- } elseif ( $quote_style === 'single' ) {
- $quote_style = ENT_NOQUOTES;
- }
- if ( ! $double_encode ) {
- // Guarantee every &entity; is valid, convert &garbage; into &garbage;
- // This is required for PHP < 5.4.0 because ENT_HTML401 flag is unavailable.
- $string = wp_kses_normalize_entities( $string );
- }
- $string = @htmlspecialchars( $string, $quote_style, $charset, $double_encode );
- // Back-compat.
- if ( 'single' === $_quote_style )
- $string = str_replace( "'", ''', $string );
- return $string;
- }
- /**
- * Converts a number of HTML entities into their special characters.
- *
- * Specifically deals with: &, <, >, ", and '.
- *
- * $quote_style can be set to ENT_COMPAT to decode " entities,
- * or ENT_QUOTES to do both " and '. Default is ENT_NOQUOTES where no quotes are decoded.
- *
- * @since 2.8.0
- *
- * @param string $string The text which is to be decoded.
- * @param string|int $quote_style Optional. Converts double quotes if set to ENT_COMPAT,
- * both single and double if set to ENT_QUOTES or
- * none if set to ENT_NOQUOTES.
- * Also compatible with old _wp_specialchars() values;
- * converting single quotes if set to 'single',
- * double if set to 'double' or both if otherwise set.
- * Default is ENT_NOQUOTES.
- * @return string The decoded text without HTML entities.
- */
- function wp_specialchars_decode( $string, $quote_style = ENT_NOQUOTES ) {
- $string = (string) $string;
- if ( 0 === strlen( $string ) ) {
- return '';
- }
- // Don't bother if there are no entities - saves a lot of processing
- if ( strpos( $string, '&' ) === false ) {
- return $string;
- }
- // Match the previous behaviour of _wp_specialchars() when the $quote_style is not an accepted value
- if ( empty( $quote_style ) ) {
- $quote_style = ENT_NOQUOTES;
- } elseif ( !in_array( $quote_style, array( 0, 2, 3, 'single', 'double' ), true ) ) {
- $quote_style = ENT_QUOTES;
- }
- // More complete than get_html_translation_table( HTML_SPECIALCHARS )
- $single = array( ''' => '\'', ''' => '\'' );
- $single_preg = array( '/�*39;/' => ''', '/�*27;/i' => ''' );
- $double = array( '"' => '"', '"' => '"', '"' => '"' );
- $double_preg = array( '/�*34;/' => '"', '/�*22;/i' => '"' );
- $others = array( '<' => '<', '<' => '<', '>' => '>', '>' => '>', '&' => '&', '&' => '&', '&' => '&' );
- $others_preg = array( '/�*60;/' => '<', '/�*62;/' => '>', '/�*38;/' => '&', '/�*26;/i' => '&' );
- if ( $quote_style === ENT_QUOTES ) {
- $translation = array_merge( $single, $double, $others );
- $translation_preg = array_merge( $single_preg, $double_preg, $others_preg );
- } elseif ( $quote_style === ENT_COMPAT || $quote_style === 'double' ) {
- $translation = array_merge( $double, $others );
- $translation_preg = array_merge( $double_preg, $others_preg );
- } elseif ( $quote_style === 'single' ) {
- $translation = array_merge( $single, $others );
- $translation_preg = array_merge( $single_preg, $others_preg );
- } elseif ( $quote_style === ENT_NOQUOTES ) {
- $translation = $others;
- $translation_preg = $others_preg;
- }
- // Remove zero padding on numeric entities
- $string = preg_replace( array_keys( $translation_preg ), array_values( $translation_preg ), $string );
- // Replace characters according to translation table
- return strtr( $string, $translation );
- }
- /**
- * Checks for invalid UTF8 in a string.
- *
- * @since 2.8.0
- *
- * @staticvar bool $is_utf8
- * @staticvar bool $utf8_pcre
- *
- * @param string $string The text which is to be checked.
- * @param bool $strip Optional. Whether to attempt to strip out invalid UTF8. Default is false.
- * @return string The checked text.
- */
- function wp_check_invalid_utf8( $string, $strip = false ) {
- $string = (string) $string;
- if ( 0 === strlen( $string ) ) {
- return '';
- }
- // Store the site charset as a static to avoid multiple calls to get_option()
- static $is_utf8 = null;
- if ( ! isset( $is_utf8 ) ) {
- $is_utf8 = in_array( get_option( 'blog_charset' ), array( 'utf8', 'utf-8', 'UTF8', 'UTF-8' ) );
- }
- if ( ! $is_utf8 ) {
- return $string;
- }
- // Check for support for utf8 in the installed PCRE library once and store the result in a static
- static $utf8_pcre = null;
- if ( ! isset( $utf8_pcre ) ) {
- $utf8_pcre = @preg_match( '/^./u', 'a' );
- }
- // We can't demand utf8 in the PCRE installation, so just return the string in those cases
- if ( !$utf8_pcre ) {
- return $string;
- }
- // preg_match fails when it encounters invalid UTF8 in $string
- if ( 1 === @preg_match( '/^./us', $string ) ) {
- return $string;
- }
- // Attempt to strip the bad chars if requested (not recommended)
- if ( $strip && function_exists( 'iconv' ) ) {
- return iconv( 'utf-8', 'utf-8', $string );
- }
- return '';
- }
- /**
- * Encode the Unicode values to be used in the URI.
- *
- * @since 1.5.0
- *
- * @param string $utf8_string
- * @param int $length Max length of the string
- * @return string String with Unicode encoded for URI.
- */
- function utf8_uri_encode( $utf8_string, $length = 0 ) {
- $unicode = '';
- $values = array();
- $num_octets = 1;
- $unicode_length = 0;
- mbstring_binary_safe_encoding();
- $string_length = strlen( $utf8_string );
- reset_mbstring_encoding();
- for ($i = 0; $i < $string_length; $i++ ) {
- $value = ord( $utf8_string[ $i ] );
- if ( $value < 128 ) {
- if ( $length && ( $unicode_length >= $length ) )
- break;
- $unicode .= chr($value);
- $unicode_length++;
- } else {
- if ( count( $values ) == 0 ) {
- if ( $value < 224 ) {
- $num_octets = 2;
- } elseif ( $value < 240 ) {
- $num_octets = 3;
- } else {
- $num_octets = 4;
- }
- }
- $values[] = $value;
- if ( $length && ( $unicode_length + ($num_octets * 3) ) > $length )
- break;
- if ( count( $values ) == $num_octets ) {
- for ( $j = 0; $j < $num_octets; $j++ ) {
- $unicode .= '%' . dechex( $values[ $j ] );
- }
- $unicode_length += $num_octets * 3;
- $values = array();
- $num_octets = 1;
- }
- }
- }
- return $unicode;
- }
- /**
- * Converts all accent characters to ASCII characters.
- *
- * If there are no accent characters, then the string given is just returned.
- *
- * **Accent characters converted:**
- *
- * Currency signs:
- *
- * | Code | Glyph | Replacement | Description |
- * | -------- | ----- | ----------- | ------------------- |
- * | U+00A3 | £ | (empty) | British Pound sign |
- * | U+20AC | € | E | Euro sign |
- *
- * Decompositions for Latin-1 Supplement:
- *
- * | Code | Glyph | Replacement | Description |
- * | ------- | ----- | ----------- | -------------------------------------- |
- * | U+00AA | ª | a | Feminine ordinal indicator |
- * | U+00BA | º | o | Masculine ordinal indicator |
- * | U+00C0 | À | A | Latin capital letter A with grave |
- * | U+00C1 | Á | A | Latin capital letter A with acute |
- * | U+00C2 | Â | A | Latin capital letter A with circumflex |
- * | U+00C3 | Ã | A | Latin capital letter A with tilde |
- * | U+00C4 | Ä | A | Latin capital letter A with diaeresis |
- * | U+00C5 | Å | A | Latin capital letter A with ring above |
- * | U+00C6 | Æ | AE | Latin capital letter AE |
- * | U+00C7 | Ç | C | Latin capital letter C with cedilla |
- * | U+00C8 | È | E | Latin capital letter E with grave |
- * | U+00C9 | É | E | Latin capital letter E with acute |
- * | U+00CA | Ê | E | Latin capital letter E with circumflex |
- * | U+00CB | Ë | E | Latin capital letter E with diaeresis |
- * | U+00CC | Ì | I | Latin capital letter I with grave |
- * | U+00CD | Í | I | Latin capital letter I with acute |
- * | U+00CE | Î | I | Latin capital letter I with circumflex |
- * | U+00CF | Ï | I | Latin capital letter I with diaeresis |
- * | U+00D0 | Ð | D | Latin capital letter Eth |
- * | U+00D1 | Ñ | N | Latin capital letter N with tilde |
- * | U+00D2 | Ò | O | Latin capital letter O with grave |
- * | U+00D3 | Ó | O | Latin capital letter O with acute |
- * | U+00D4 | Ô | O | Latin capital letter O with circumflex |
- * | U+00D5 | Õ | O | Latin capital letter O with tilde |
- * | U+00D6 | Ö | O | Latin capital letter O with diaeresis |
- * | U+00D8 | Ø | O | Latin capital letter O with stroke |
- * | U+00D9 | Ù | U | Latin capital letter U with grave |
- * | U+00DA | Ú | U | Latin capital letter U with acute |
- * | U+00DB | Û | U | Latin capital letter U with circumflex |
- * | U+00DC | Ü | U | Latin capital letter U with diaeresis |
- * | U+00DD | Ý | Y | Latin capital letter Y with acute |
- * | U+00DE | Þ | TH | Latin capital letter Thorn |
- * | U+00DF | ß | s | Latin small letter sharp s |
- * | U+00E0 | à | a | Latin small letter a with grave |
- * | U+00E1 | á | a | Latin small letter a with acute |
- * | U+00E2 | â | a | Latin small letter a with circumflex |
- * | U+00E3 | ã | a | Latin small letter a with tilde |
- * | U+00E4 | ä | a | Latin small letter a with diaeresis |
- * | U+00E5 | å | a | Latin small letter a with ring above |
- * | U+00E6 | æ | ae | Latin small letter ae |
- * | U+00E7 | ç | c | Latin small letter c with cedilla |
- * | U+00E8 | è | e | Latin small letter e with grave |
- * | U+00E9 | é | e | Latin small letter e with acute |
- * | U+00EA | ê | e | Latin small letter e with circumflex |
- * | U+00EB | ë | e | Latin small letter e with diaeresis |
- * | U+00EC | ì | i | Latin small letter i with grave |
- * | U+00ED | í | i | Latin small letter i with acute |
- * | U+00EE | î | i | Latin small letter i with circumflex |
- * | U+00EF | ï | i | Latin small letter i with diaeresis |
- * | U+00F0 | ð | d | Latin small letter Eth |
- * | U+00F1 | ñ | n | Latin small letter n with tilde |
- * | U+00F2 | ò | o | Latin small letter o with grave |
- * | U+00F3 | ó | o | Latin small letter o with acute |
- * | U+00F4 | ô | o | Latin small letter o with circumflex |
- * | U+00F5 | õ | o | Latin small letter o with tilde |
- * | U+00F6 | ö | o | Latin small letter o with diaeresis |
- * | U+00F8 | ø | o | Latin small letter o with stroke |
- * | U+00F9 | ù | u | Latin small letter u with grave |
- * | U+00FA | ú | u | Latin small letter u with acute |
- * | U+00FB | û | u | Latin small letter u with circumflex |
- * | U+00FC | ü | u | Latin small letter u with diaeresis |
- * | U+00FD | ý | y | Latin small letter y with acute |
- * | U+00FE | þ | th | Latin small letter Thorn |
- * | U+00FF | ÿ | y | Latin small letter y with diaeresis |
- *
- * Decompositions for Latin Extended-A:
- *
- * | Code | Glyph | Replacement | Description |
- * | ------- | ----- | ----------- | ------------------------------------------------- |
- * | U+0100 | Ā | A | Latin capital letter A with macron |
- * | U+0101 | ā | a | Latin small letter a with macron |
- * | U+0102 | Ă | A | Latin capital letter A with breve |
- * | U+0103 | ă | a | Latin small letter a with breve |
- * | U+0104 | Ą | A | Latin capital letter A with ogonek |
- * | U+0105 | ą | a | Latin small letter a with ogonek |
- * | U+01006 | Ć | C | Latin capital letter C with acute |
- * | U+0107 | ć | c | Latin small letter c with acute |
- * | U+0108 | Ĉ | C | Latin capital letter C with circumflex |
- * | U+0109 | ĉ | c | Latin small letter c with circumflex |
- * | U+010A | Ċ | C | Latin capital letter C with dot above |
- * | U+010B | ċ | c | Latin small letter c with dot above |
- * | U+010C | Č | C | Latin capital letter C with caron |
- * | U+010D | č | c | Latin small letter c with caron |
- * | U+010E | Ď | D | Latin capital letter D with caron |
- * | U+010F | ď | d | Latin small letter d with caron |
- * | U+0110 | Đ | D | Latin capital letter D with stroke |
- * | U+0111 | đ | d | Latin small letter d with stroke |
- * | U+0112 | Ē | E | Latin capital letter E with macron |
- * | U+0113 | ē | e | Latin small letter e with macron |
- * | U+0114 | Ĕ | E | Latin capital letter E with breve |
- * | U+0115 | ĕ | e | Latin small letter e with breve |
- * | U+0116 | Ė | E | Latin capital letter E with dot above |
- * | U+0117 | ė | e | Latin small letter e with dot above |
- * | U+0118 | Ę | E | Latin capital letter E with ogonek |
- * | U+0119 | ę | e | Latin small letter e with ogonek |
- * | U+011A | Ě | E | Latin capital letter E with caron |
- * | U+011B | ě | e | Latin small letter e with caron |
- * | U+011C | Ĝ | G | Latin capital letter G with circumflex |
- * | U+011D | ĝ | g | Latin small letter g with circumflex |
- * | U+011E | Ğ | G | Latin capital letter G with breve |
- * | U+011F | ğ | g | Latin small letter g with breve |
- * | U+0120 | Ġ | G | Latin capital letter G with dot above |
- * | U+0121 | ġ | g | Latin small letter g with dot above |
- * | U+0122 | Ģ | G | Latin capital letter G with cedilla |
- * | U+0123 | ģ | g | Latin small letter g with cedilla |
- * | U+0124 | Ĥ | H | Latin capital letter H with circumflex |
- * | U+0125 | ĥ | h | Latin small letter h with circumflex |
- * | U+0126 | Ħ | H | Latin capital letter H with stroke |
- * | U+0127 | ħ | h | Latin small letter h with stroke |
- * | U+0128 | Ĩ | I | Latin capital letter I with tilde |
- * | U+0129 | ĩ | i | Latin small letter i with tilde |
- * | U+012A | Ī | I | Latin capital letter I with macron |
- * | U+012B | ī | i | Latin small letter i with macron |
- * | U+012C | Ĭ | I | Latin capital letter I with breve |
- * | U+012D | ĭ | i | Latin small letter i with breve |
- * | U+012E | Į | I | Latin capital letter I with ogonek |
- * | U+012F | į | i | Latin small letter i with ogonek |
- * | U+0130 | İ | I | Latin capital letter I with dot above |
- * | U+0131 | ı | i | Latin small letter dotless i |
- * | U+0132 | IJ | IJ | Latin capital ligature IJ |
- * | U+0133 | ij | ij | Latin small ligature ij |
- * | U+0134 | Ĵ | J | Latin capital letter J with circumflex |
- * | U+0135 | ĵ | j | Latin small letter j with circumflex |
- * | U+0136 | Ķ | K | Latin capital letter K with cedilla |
- * | U+0137 | ķ | k | Latin small letter k with cedilla |
- * | U+0138 | ĸ | k | Latin small letter Kra |
- * | U+0139 | Ĺ | L | Latin capital letter L with acute |
- * | U+013A | ĺ | l | Latin small letter l with acute |
- * | U+013B | Ļ | L | Latin capital letter L with cedilla |
- * | U+013C | ļ | l | Latin small letter l with cedilla |
- * | U+013D | Ľ | L | Latin capital letter L with caron |
- * | U+013E | ľ | l | Latin small letter l with caron |
- * | U+013F | Ŀ | L | Latin capital letter L with middle dot |
- * | U+0140 | ŀ | l | Latin small letter l with middle dot |
- * | U+0141 | Ł | L | Latin capital letter L with stroke |
- * | U+0142 | ł | l | Latin small letter l with stroke |
- * | U+0143 | Ń | N | Latin capital letter N with acute |
- * | U+0144 | ń | n | Latin small letter N with acute |
- * | U+0145 | Ņ | N | Latin capital letter N with cedilla |
- * | U+0146 | ņ | n | Latin small letter n with cedilla |
- * | U+0147 | Ň | N | Latin capital letter N with caron |
- * | U+0148 | ň | n | Latin small letter n with caron |
- * | U+0149 | ʼn | n | Latin small letter n preceded by apostrophe |
- * | U+014A | Ŋ | N | Latin capital letter Eng |
- * | U+014B | ŋ | n | Latin small letter Eng |
- * | U+014C | Ō | O | Latin capital letter O with macron |
- * | U+014D | ō | o | Latin small letter o with macron |
- * | U+014E | Ŏ | O | Latin capital letter O with breve |
- * | U+014F | ŏ | o | Latin small letter o with breve |
- * | U+0150 | Ő | O | Latin capital letter O with double acute |
- * | U+0151 | ő | o | Latin small letter o with double acute |
- * | U+0152 | Œ | OE | Latin capital ligature OE |
- * | U+0153 | œ | oe | Latin small ligature oe |
- * | U+0154 | Ŕ | R | Latin capital letter R with acute |
- * | U+0155 | ŕ | r | Latin small letter r with acute |
- * | U+0156 | Ŗ | R | Latin capital letter R with cedilla |
- * | U+0157 | ŗ | r | Latin small letter r with cedilla |
- * | U+0158 | Ř | R | Latin capital letter R with caron |
- * | U+0159 | ř | r | Latin small letter r with caron |
- * | U+015A | Ś | S | Latin capital letter S with acute |
- * | U+015B | ś | s | Latin small letter s with acute |
- * | U+015C | Ŝ | S | Latin capital letter S with circumflex |
- * | U+015D | ŝ | s | Latin small letter s with circumflex |
- * | U+015E | Ş | S | Latin capital letter S with cedilla |
- * | U+015F | ş | s | Latin small letter s with cedilla |
- * | U+0160 | Š | S | Latin capital letter S with caron |
- * | U+0161 | š | s | Latin small letter s with caron |
- * | U+0162 | Ţ | T | Latin capital letter T with cedilla |
- * | U+0163 | ţ | t | Latin small letter t with cedilla |
- * | U+0164 | Ť | T | Latin capital letter T with caron |
- * | U+0165 | ť | t | Latin small letter t with caron |
- * | U+0166 | Ŧ | T | Latin capital letter T with stroke |
- * | U+0167 | ŧ | t | Latin small letter t with stroke |
- * | U+0168 | Ũ | U | Latin capital letter U with tilde |
- * | U+0169 | ũ | u | Latin small letter u with tilde |
- * | U+016A | Ū | U | Latin capital letter U with macron |
- * | U+016B | ū | u | Latin small letter u with macron |
- * | U+016C | Ŭ | U | Latin capital letter U with breve |
- * | U+016D | ŭ | u | Latin small letter u with breve |
- * | U+016E | Ů | U | Latin capital letter U with ring above |
- * | U+016F | ů | u | Latin small letter u with ring above |
- * | U+0170 | Ű | U | Latin capital letter U with double acute |
- * | U+0171 | ű | u | Latin small letter u with double acute |
- * | U+0172 | Ų | U | Latin capital letter U with ogonek |
- * | U+0173 | ų | u | Latin small letter u with ogonek |
- * | U+0174 | Ŵ | W | Latin capital letter W with circumflex |
- * | U+0175 | ŵ | w | Latin small letter w with circumflex |
- * | U+0176 | Ŷ | Y | Latin capital letter Y with circumflex |
- * | U+0177 | ŷ | y | Latin small letter y with circumflex |
- * | U+0178 | Ÿ | Y | Latin capital letter Y with diaeresis |
- * | U+0179 | Ź | Z | Latin capital letter Z with acute |
- * | U+017A | ź | z | Latin small letter z with acute |
- * | U+017B | Ż | Z | Latin capital letter Z with dot above |
- * | U+017C | ż | z | Latin small letter z with dot above |
- * | U+017D | Ž | Z | Latin capital letter Z with caron |
- * | U+017E | ž | z | Latin small letter z with caron |
- * | U+017F | ſ | s | Latin small letter long s |
- * | U+01A0 | Ơ | O | Latin capital letter O with horn |
- * | U+01A1 | ơ | o | Latin small letter o with horn |
- * | U+01AF | Ư | U | Latin capital letter U with horn |
- * | U+01B0 | ư | u | Latin small letter u with horn |
- * | U+01CD | Ǎ | A | Latin capital letter A with caron |
- * | U+01CE | ǎ | a | Latin small letter a with caron |
- * | U+01CF | Ǐ | I | Latin capital letter I with caron |
- * | U+01D0 | ǐ | i | Latin small letter i with caron |
- * | U+01D1 | Ǒ | O | Latin capital letter O with caron |
- * | U+01D2 | ǒ | o | Latin small letter o with caron |
- * | U+01D3 | Ǔ | U | Latin capital letter U with caron |
- * | U+01D4 | ǔ | u | Latin small letter u with caron |
- * | U+01D5 | Ǖ | U | Latin capital letter U with diaeresis and macron |
- * | U+01D6 | ǖ | u | Latin small letter u with diaeresis and macron |
- * | U+01D7 | Ǘ | U | Latin capital letter U with diaeresis and acute |
- * | U+01D8 | ǘ | u | Latin small letter u with diaeresis and acute |
- * | U+01D9 | Ǚ | U | Latin capital letter U with diaeresis and caron |
- * | U+01DA | ǚ | u | Latin small letter u with diaeresis and caron |
- * | U+01DB | Ǜ | U | Latin capital letter U with diaeresis and grave |
- * | U+01DC | ǜ | u | Latin small letter u with diaeresis and grave |
- *
- * Decompositions for Latin Extended-B:
- *
- * | Code | Glyph | Replacement | Description |
- * | -------- | ----- | ----------- | ----------------------------------------- |
- * | U+0218 | Ș | S | Latin capital letter S with comma below |
- * | U+0219 | ș | s | Latin small letter s with comma below |
- * | U+021A | Ț | T | Latin capital letter T with comma below |
- * | U+021B | ț | t | Latin small letter t with comma below |
- *
- * Vowels with diacritic (Chinese, Hanyu Pinyin):
- *
- * | Code | Glyph | Replacement | Description |
- * | -------- | ----- | ----------- | ----------------------------------------------------- |
- * | U+0251 | ɑ | a | Latin small letter alpha |
- * | U+1EA0 | Ạ | A | Latin capital letter A with dot below |
- * | U+1EA1 | ạ | a | Latin small letter a with dot below |
- * | U+1EA2 | Ả | A | Latin capital letter A with hook above |
- * | U+1EA3 | ả | a | Latin small letter a with hook above |
- * | U+1EA4 | Ấ | A | Latin capital letter A with circumflex and acute |
- * | U+1EA5 | ấ | a | Latin small letter a with circumflex and acute |
- * | U+1EA6 | Ầ | A | Latin capital letter A with circumflex and grave |
- * | U+1EA7 | ầ | a | Latin small letter a with circumflex and grave |
- * | U+1EA8 | Ẩ | A | Latin capital letter A with circumflex and hook above |
- * | U+1EA9 | ẩ | a | Latin small letter a with circumflex and hook above |
- * | U+1EAA | Ẫ | A | Latin capital letter A with circumflex and tilde |
- * | U+1EAB | ẫ | a | Latin small letter a with circumflex and tilde |
- * | U+1EA6 | Ậ | A | Latin capital letter A with circumflex and dot below |
- * | U+1EAD | ậ | a | Latin small letter a with circumflex and dot below |
- * | U+1EAE | Ắ | A | Latin capital letter A with breve and acute |
- * | U+1EAF | ắ | a | Latin small letter a with breve and acute |
- * | U+1EB0 | Ằ | A | Latin capital letter A with breve and grave |
- * | U+1EB1 | ằ | a | Latin small letter a with breve and grave |
- * | U+1EB2 | Ẳ | A | Latin capital letter A with breve and hook above |
- * | U+1EB3 | ẳ | a | Latin small letter a with breve and hook above |
- * | U+1EB4 | Ẵ | A | Latin capital letter A with breve and tilde |
- * | U+1EB5 | ẵ | a | Latin small letter a with breve and tilde |
- * | U+1EB6 | Ặ | A | Latin capital letter A with breve and dot below |
- * | U+1EB7 | ặ | a | Latin small letter a with breve and dot below |
- * | U+1EB8 | Ẹ | E | Latin capital letter E with dot below |
- * | U+1EB9 | ẹ | e | Latin small letter e with dot below |
- * | U+1EBA | Ẻ | E | Latin capital letter E with hook above |
- * | U+1EBB | ẻ | e | Latin small letter e with hook above |
- * | U+1EBC | Ẽ | E | Latin capital letter E with tilde |
- * | U+1EBD | ẽ | e | Latin small letter e with tilde |
- * | U+1EBE | Ế | E | Latin capital letter E with circumflex and acute |
- * | U+1EBF | ế | e | Latin small letter e with circumflex and acute |
- * | U+1EC0 | Ề | E | Latin capital letter E with circumflex and grave |
- * | U+1EC1 | ề | e | Latin small letter e with circumflex and grave |
- * | U+1EC2 | Ể | E | Latin capital letter E with circumflex and hook above |
- * | U+1EC3 | ể | e | Latin small letter e with circumflex and hook above |
- * | U+1EC4 | Ễ | E | Latin capital letter E with circumflex and tilde |
- * | U+1EC5 | ễ | e | Latin small letter e with circumflex and tilde |
- * | U+1EC6 | Ệ | E | Latin capital letter E with circumflex and dot below |
- * | U+1EC7 | ệ | e | Latin small letter e with circumflex and dot below |
- * | U+1EC8 | Ỉ | I | Latin capital letter I with hook above |
- * | U+1EC9 | ỉ | i | Latin small letter i with hook above |
- * | U+1ECA | Ị | I | Latin capital letter I with dot below |
- * | U+1ECB | ị | i | Latin small letter i with dot below |
- * | U+1ECC | Ọ | O | Latin capital letter O with dot below |
- * | U+1ECD | ọ | o | Latin small letter o with dot below |
- * | U+1ECE | Ỏ | O | Latin capital letter O with hook above |
- * | U+1ECF | ỏ | o | Latin small letter o with hook above |
- * | U+1ED0 | Ố | O | Latin capital letter O with circumflex and acute |
- * | U+1ED1 | ố | o | Latin small letter o with circumflex and acute |
- * | U+1ED2 | Ồ | O | Latin capital letter O with circumflex and grave |
- * | U+1ED3 | ồ | o | Latin small letter o with circumflex and grave |
- * | U+1ED4 | Ổ | O | Latin capital letter O with circumflex and hook above |
- * | U+1ED5 | ổ | o | Latin small letter o with circumflex and hook above |
- * | U+1ED6 | Ỗ | O | Latin capital letter O with circumflex and tilde |
- * | U+1ED7 | ỗ | o | Latin small letter o with circumflex and tilde |
- * | U+1ED8 | Ộ | O | Latin capital letter O with circumflex and dot below |
- * | U+1ED9 | ộ | o | Latin small letter o with circumflex and dot below |
- * | U+1EDA | Ớ | O | Latin capital letter O with horn and acute |
- * | U+1EDB | ớ | o | Latin small letter o with horn and acute |
- * | U+1EDC | Ờ | O | Latin capital letter O with horn and grave |
- * | U+1EDD | ờ | o | Latin small letter o with horn and grave |
- * | U+1EDE | Ở | O | Latin capital letter O with horn and hook above |
- * | U+1EDF | ở | o | Latin small letter o with horn and hook above |
- * | U+1EE0 | Ỡ | O | Latin capital letter O with horn and tilde |
- * | U+1EE1 | ỡ | o | Latin small letter o with horn and tilde |
- * | U+1EE2 | Ợ | O | Latin capital letter O with horn and dot below |
- * | U+1EE3 | ợ | o | Latin small letter o with horn and dot below |
- * | U+1EE4 | Ụ | U | Latin capital letter U with dot below |
- * | U+1EE5 | ụ | u | Latin small letter u with dot below |
- * | U+1EE6 | Ủ | U | Latin capital letter U with hook above |
- * | U+1EE7 | ủ | u | Latin small letter u with hook above |
- * | U+1EE8 | Ứ | U | Latin capital letter U with horn and acute |
- * | U+1EE9 | ứ | u | Latin small letter u with horn and acute |
- * | U+1EEA | Ừ | U | Latin capital letter U with horn and grave |
- * | U+1EEB | ừ | u | Latin small letter u with horn and grave |
- * | U+1EEC | Ử | U | Latin capital letter U with horn and hook above |
- * | U+1EED | ử | u | Latin small letter u with horn and hook above |
- * | U+1EEE | Ữ | U | Latin capital letter U with horn and tilde |
- * | U+1EEF | ữ | u | Latin small letter u with horn and tilde |
- * | U+1EF0 | Ự | U | Latin capital letter U with horn and dot below |
- * | U+1EF1 | ự | u | Latin small letter u with horn and dot below |
- * | U+1EF2 | Ỳ | Y | Latin capital letter Y with grave |
- * | U+1EF3 | ỳ | y | Latin small letter y with grave |
- * | U+1EF4 | Ỵ | Y | Latin capital letter Y with dot below |
- * | U+1EF5 | ỵ | y | Latin small letter y with dot below |
- * | U+1EF6 | Ỷ | Y | Latin capital letter Y with hook above |
- * | U+1EF7 | ỷ | y | Latin small letter y with hook above |
- * | U+1EF8 | Ỹ | Y | Latin capital letter Y with tilde |
- * | U+1EF9 | ỹ | y | Latin small letter y with tilde |
- *
- * German (`de_DE`), German formal (`de_DE_formal`), German (Switzerland) formal (`de_CH`),
- * and German (Switzerland) informal (`de_CH_informal`) locales:
- *
- * | Code | Glyph | Replacement | Description |
- * | -------- | ----- | ----------- | --------------------------------------- |
- * | U+00C4 | Ä | Ae | Latin capital letter A with diaeresis |
- * | U+00E4 | ä | ae | Latin small letter a with diaeresis |
- * | U+00D6 | Ö | Oe | Latin capital letter O with diaeresis |
- * | U+00F6 | ö | oe | Latin small letter o with diaeresis |
- * | U+00DC | Ü | Ue | Latin capital letter U with diaeresis |
- * | U+00FC | ü | ue | Latin small letter u with diaeresis |
- * | U+00DF | ß | ss | Latin small letter sharp s |
- *
- * Danish (`da_DK`) locale:
- *
- * | Code | Glyph | Replacement | Description |
- * | -------- | ----- | ----------- | --------------------------------------- |
- * | U+00C6 | Æ | Ae | Latin capital letter AE |
- * | U+00E6 | æ | ae | Latin small letter ae |
- * | U+00D8 | Ø | Oe | Latin capital letter O with stroke |
- * | U+00F8 | ø | oe | Latin small letter o with stroke |
- * | U+00C5 | Å | Aa | Latin capital letter A with ring above |
- * | U+00E5 | å | aa | Latin small letter a with ring above |
- *
- * Catalan (`ca`) locale:
- *
- * | Code | Glyph | Replacement | Description |
- * | -------- | ----- | ----------- | --------------------------------------- |
- * | U+00B7 | l·l | ll | Flown dot (between two Ls) |
- *
- * Serbian (`sr_RS`) and Bosnian (`bs_BA`) locales:
- *
- * | Code | Glyph | Replacement | Description |
- * | -------- | ----- | ----------- | --------------------------------------- |
- * | U+0110 | Đ | DJ | Latin capital letter D with stroke |
- * | U+0111 | đ | dj | Latin small letter d with stroke |
- *
- * @since 1.2.1
- * @since 4.6.0 Added locale support for `de_CH`, `de_CH_informal`, and `ca`.
- * @since 4.7.0 Added locale support for `sr_RS`.
- * @since 4.8.0 Added locale support for `bs_BA`.
- *
- * @param string $string Text that might have accent characters
- * @return string Filtered string with replaced "nice" characters.
- */
- function remove_accents( $string ) {
- if ( !preg_match('/[\x80-\xff]/', $string) )
- return $string;
- if (seems_utf8($string)) {
- $chars = array(
- // Decompositions for Latin-1 Supplement
- 'ª' => 'a', 'º' => 'o',
- 'À' => 'A', 'Á' => 'A',
- 'Â' => 'A', 'Ã' => 'A',
- 'Ä' => 'A', 'Å' => 'A',
- 'Æ' => 'AE','Ç' => 'C',
- 'È' => 'E', 'É' => 'E',
- 'Ê' => 'E', 'Ë' => 'E',
- 'Ì' => 'I', 'Í' => 'I',
- 'Î' => 'I', 'Ï' => 'I',
- 'Ð' => 'D', 'Ñ' => 'N',
- 'Ò' => 'O', 'Ó' => 'O',
- 'Ô' => 'O', 'Õ' => 'O',
- 'Ö' => 'O', 'Ù' => 'U',
- 'Ú' => 'U', 'Û' => 'U',
- 'Ü' => 'U', 'Ý' => 'Y',
- 'Þ' => 'TH','ß' => 's',
- 'à' => 'a', 'á' => 'a',
- 'â' => 'a', 'ã' => 'a',
- 'ä' => 'a', 'å' => 'a',
- 'æ' => 'ae','ç' => 'c',
- 'è' => 'e', 'é' => 'e',
- 'ê' => 'e', 'ë' => 'e',
- 'ì' => 'i', 'í' => 'i',
- 'î' => 'i', 'ï' => 'i',
- 'ð' => 'd', 'ñ' => 'n',
- 'ò' => 'o', 'ó' => 'o',
- 'ô' => 'o', 'õ' => 'o',
- 'ö' => 'o', 'ø' => 'o',
- 'ù' => 'u', 'ú' => 'u',
- 'û' => 'u', 'ü' => 'u',
- 'ý' => 'y', 'þ' => 'th',
- 'ÿ' => 'y', 'Ø' => 'O',
- // Decompositions for Latin Extended-A
- 'Ā' => 'A', 'ā' => 'a',
- 'Ă' => 'A', 'ă' => 'a',
- 'Ą' => 'A', 'ą' => 'a',
- 'Ć' => 'C', 'ć' => 'c',
- 'Ĉ' => 'C', 'ĉ' => 'c',
- 'Ċ' => 'C', 'ċ' => 'c',
- 'Č' => 'C', 'č' => 'c',
- 'Ď' => 'D', 'ď' => 'd',
- 'Đ' => 'D', 'đ' => 'd',
- 'Ē' => 'E', 'ē' => 'e',
- 'Ĕ' => 'E', 'ĕ' => 'e',
- 'Ė' => 'E', 'ė' => 'e',
- 'Ę' => 'E', 'ę' => 'e',
- 'Ě' => 'E', 'ě' => 'e',
- 'Ĝ' => 'G', 'ĝ' => 'g',
- 'Ğ' => 'G', 'ğ' => 'g',
- 'Ġ' => 'G', 'ġ' => 'g',
- 'Ģ' => 'G', 'ģ' => 'g',
- 'Ĥ' => 'H', 'ĥ' => 'h',
- 'Ħ' => 'H', 'ħ' => 'h',
- 'Ĩ' => 'I', 'ĩ' => 'i',
- 'Ī' => 'I', 'ī' => 'i',
- 'Ĭ' => 'I', 'ĭ' => 'i',
- 'Į' => 'I', 'į' => 'i',
- 'İ' => 'I', 'ı' => 'i',
- 'IJ' => 'IJ','ij' => 'ij',
- 'Ĵ' => 'J', 'ĵ' => 'j',
- 'Ķ' => 'K', 'ķ' => 'k',
- 'ĸ' => 'k', 'Ĺ' => 'L',
- 'ĺ' => 'l', 'Ļ' => 'L',
- 'ļ' => 'l', 'Ľ' => 'L',
- 'ľ' => 'l', 'Ŀ' => 'L',
- 'ŀ' => 'l', 'Ł' => 'L',
- 'ł' => 'l', 'Ń' => 'N',
- 'ń' => 'n', 'Ņ' => 'N',
- 'ņ' => 'n', 'Ň' => 'N',
- 'ň' => 'n', 'ʼn' => 'n',
- 'Ŋ' => 'N', 'ŋ' => 'n',
- 'Ō' => 'O', 'ō' => 'o',
- 'Ŏ' => 'O', 'ŏ' => 'o',
- 'Ő' => 'O', 'ő' => 'o',
- 'Œ' => 'OE','œ' => 'oe',
- 'Ŕ' => 'R','ŕ' => 'r',
- 'Ŗ' => 'R','ŗ' => 'r',
- 'Ř' => 'R','ř' => 'r',
- 'Ś' => 'S','ś' => 's',
- 'Ŝ' => 'S','ŝ' => 's',
- 'Ş' => 'S','ş' => 's',
- 'Š' => 'S', 'š' => 's',
- 'Ţ' => 'T', 'ţ' => 't',
- 'Ť' => 'T', 'ť' => 't',
- 'Ŧ' => 'T', 'ŧ' => 't',
- 'Ũ' => 'U', 'ũ' => 'u',
- 'Ū' => 'U', 'ū' => 'u',
- 'Ŭ' => 'U', 'ŭ' => 'u',
- 'Ů' => 'U', 'ů' => 'u',
- 'Ű' => 'U', 'ű' => 'u',
- 'Ų' => 'U', 'ų' => 'u',
- 'Ŵ' => 'W', 'ŵ' => 'w',
- 'Ŷ' => 'Y', 'ŷ' => 'y',
- 'Ÿ' => 'Y', 'Ź' => 'Z',
- 'ź' => 'z', 'Ż' => 'Z',
- 'ż' => 'z', 'Ž' => 'Z',
- 'ž' => 'z', 'ſ' => 's',
- // Decompositions for Latin Extended-B
- 'Ș' => 'S', 'ș' => 's',
- 'Ț' => 'T', 'ț' => 't',
- // Euro Sign
- '€' => 'E',
- // GBP (Pound) Sign
- '£' => '',
- // Vowels with diacritic (Vietnamese)
- // unmarked
- 'Ơ' => 'O', 'ơ' => 'o',
- 'Ư' => 'U', 'ư' => 'u',
- // grave accent
- 'Ầ' => 'A', 'ầ' => 'a',
- 'Ằ' => 'A', 'ằ' => 'a',
- 'Ề' => 'E', 'ề' => 'e',
- 'Ồ' => 'O', 'ồ' => 'o',
- 'Ờ' => 'O', 'ờ' => 'o',
- 'Ừ' => 'U', 'ừ' => 'u',
- 'Ỳ' => 'Y', 'ỳ' => 'y',
- // hook
- 'Ả' => 'A', 'ả' => 'a',
- 'Ẩ' => 'A', 'ẩ' => 'a',
- 'Ẳ' => 'A', 'ẳ' => 'a',
- 'Ẻ' => 'E', 'ẻ' => 'e',
- 'Ể' => 'E', 'ể' => 'e',
- 'Ỉ' => 'I', 'ỉ' => 'i',
- 'Ỏ' => 'O', 'ỏ' => 'o',
- 'Ổ' => 'O', 'ổ' => 'o',
- 'Ở' => 'O', 'ở' => 'o',
- 'Ủ' => 'U', 'ủ' => 'u',
- 'Ử' => 'U', 'ử' => 'u',
- 'Ỷ' => 'Y', 'ỷ' => 'y',
- // tilde
- 'Ẫ' => 'A', 'ẫ' => 'a',
- 'Ẵ' => 'A', 'ẵ' => 'a',
- 'Ẽ' => 'E', 'ẽ' => 'e',
- 'Ễ' => 'E', 'ễ' => 'e',
- 'Ỗ' => 'O', 'ỗ' => 'o',
- 'Ỡ' => 'O', 'ỡ' => 'o',
- 'Ữ' => 'U', 'ữ' => 'u',
- 'Ỹ' => 'Y', 'ỹ' => 'y',
- // acute accent
- 'Ấ' => 'A', 'ấ' => 'a',
- 'Ắ' => 'A', 'ắ' => 'a',
- 'Ế' => 'E', 'ế' => 'e',
- 'Ố' => 'O', 'ố' => 'o',
- 'Ớ' => 'O', 'ớ' => 'o',
- 'Ứ' => 'U', 'ứ' => 'u',
- // dot below
- 'Ạ' => 'A', 'ạ' => 'a',
- 'Ậ' => 'A', 'ậ' => 'a',
- 'Ặ' => 'A', 'ặ' => 'a',
- 'Ẹ' => 'E', 'ẹ' => 'e',
- 'Ệ' => 'E', 'ệ' => 'e',
- 'Ị' => 'I', 'ị' => 'i',
- 'Ọ' => 'O', 'ọ' => 'o',
- 'Ộ' => 'O', 'ộ' => 'o',
- 'Ợ' => 'O', 'ợ' => 'o',
- 'Ụ' => 'U', 'ụ' => 'u',
- 'Ự' => 'U', 'ự' => 'u',
- 'Ỵ' => 'Y', 'ỵ' => 'y',
- // Vowels with diacritic (Chinese, Hanyu Pinyin)
- 'ɑ' => 'a',
- // macron
- 'Ǖ' => 'U', 'ǖ' => 'u',
- // acute accent
- 'Ǘ' => 'U', 'ǘ' => 'u',
- // caron
- 'Ǎ' => 'A', 'ǎ' => 'a',
- 'Ǐ' => 'I', 'ǐ' => 'i',
- 'Ǒ' => 'O', 'ǒ' => 'o',
- 'Ǔ' => 'U', 'ǔ' => 'u',
- 'Ǚ' => 'U', 'ǚ' => 'u',
- // grave accent
- 'Ǜ' => 'U', 'ǜ' => 'u',
- );
- // Used for locale-specific rules
- $locale = get_locale();
- if ( 'de_DE' == $locale || 'de_DE_formal' == $locale || 'de_CH' == $locale || 'de_CH_informal' == $locale ) {
- $chars[ 'Ä' ] = 'Ae';
- $chars[ 'ä' ] = 'ae';
- $chars[ 'Ö' ] = 'Oe';
- $chars[ 'ö' ] = 'oe';
- $chars[ 'Ü' ] = 'Ue';
- $chars[ 'ü' ] = 'ue';
- $chars[ 'ß' ] = 'ss';
- } elseif ( 'da_DK' === $locale ) {
- $chars[ 'Æ' ] = 'Ae';
- $chars[ 'æ' ] = 'ae';
- $chars[ 'Ø' ] = 'Oe';
- $chars[ 'ø' ] = 'oe';
- $chars[ 'Å' ] = 'Aa';
- $chars[ 'å' ] = 'aa';
- } elseif ( 'ca' === $locale ) {
- $chars[ 'l·l' ] = 'll';
- } elseif ( 'sr_RS' === $locale || 'bs_BA' === $locale ) {
- $chars[ 'Đ' ] = 'DJ';
- $chars[ 'đ' ] = 'dj';
- }
- $string = strtr($string, $chars);
- } else {
- $chars = array();
- // Assume ISO-8859-1 if not UTF-8
- $chars['in'] = "\x80\x83\x8a\x8e\x9a\x9e"
- ."\x9f\xa2\xa5\xb5\xc0\xc1\xc2"
- ."\xc3\xc4\xc5\xc7\xc8\xc9\xca"
- ."\xcb\xcc\xcd\xce\xcf\xd1\xd2"
- ."\xd3\xd4\xd5\xd6\xd8\xd9\xda"
- ."\xdb\xdc\xdd\xe0\xe1\xe2\xe3"
- ."\xe4\xe5\xe7\xe8\xe9\xea\xeb"
- ."\xec\xed\xee\xef\xf1\xf2\xf3"
- ."\xf4\xf5\xf6\xf8\xf9\xfa\xfb"
- ."\xfc\xfd\xff";
- $chars['out'] = "EfSZszYcYuAAAAAACEEEEIIIINOOOOOOUUUUYaaaaaaceeeeiiiinoooooouuuuyy";
- $string = strtr($string, $chars['in'], $chars['out']);
- $double_chars = array();
- $double_chars['in'] = array("\x8c", "\x9c", "\xc6", "\xd0", "\xde", "\xdf", "\xe6", "\xf0", "\xfe");
- $double_chars['out'] = array('OE', 'oe', 'AE', 'DH', 'TH', 'ss', 'ae', 'dh', 'th');
- $string = str_replace($double_chars['in'], $double_chars['out'], $string);
- }
- return $string;
- }
- /**
- * Sanitizes a filename, replacing whitespace with dashes.
- *
- * Removes special characters that are illegal in filenames on certain
- * operating systems and special characters requiring special escaping
- * to manipulate at the command line. Replaces spaces and consecutive
- * dashes with a single dash. Trims period, dash and underscore from beginning
- * and end of filename. It is not guaranteed that this function will return a
- * filename that is allowed to be uploaded.
- *
- * @since 2.1.0
- *
- * @param string $filename The filename to be sanitized
- * @return string The sanitized filename
- */
- function sanitize_file_name( $filename ) {
- $filename_raw = $filename;
- $special_chars = array("?", "[", "]", "/", "\\", "=", "<", ">", ":", ";", ",", "'", "\"", "&", "$", "#", "*", "(", ")", "|", "~", "`", "!", "{", "}", "%", "+", chr(0));
- /**
- * Filters the list of characters to remove from a filename.
- *
- * @since 2.8.0
- *
- * @param array $special_chars Characters to remove.
- * @param string $filename_raw Filename as it was passed into sanitize_file_name().
- */
- $special_chars = apply_filters( 'sanitize_file_name_chars', $special_chars, $filename_raw );
- $filename = preg_replace( "#\x{00a0}#siu", ' ', $filename );
- $filename = str_replace( $special_chars, '', $filename );
- $filename = str_replace( array( '%20', '+' ), '-', $filename );
- $filename = preg_replace( '/[\r\n\t -]+/', '-', $filename );
- $filename = trim( $filename, '.-_' );
- if ( false === strpos( $filename, '.' ) ) {
- $mime_types = wp_get_mime_types();
- $filetype = wp_check_filetype( 'test.' . $filename, $mime_types );
- if ( $filetype['ext'] === $filename ) {
- $filename = 'unnamed-file.' . $filetype['ext'];
- }
- }
- // Split the filename into a base and extension[s]
- $parts = explode('.', $filename);
- // Return if only one extension
- if ( count( $parts ) <= 2 ) {
- /**
- * Filters a sanitized filename string.
- *
- * @since 2.8.0
- *
- * @param string $filename Sanitized filename.
- * @param string $filename_raw The filename prior to sanitization.
- */
- return apply_filters( 'sanitize_file_name', $filename, $filename_raw );
- }
- // Process multiple extensions
- $filename = array_shift($parts);
- $extension = array_pop($parts);
- $mimes = get_allowed_mime_types();
- /*
- * Loop over any intermediate extensions. Postfix them with a trailing underscore
- * if they are a 2 - 5 character long alpha string not in the extension whitelist.
- */
- foreach ( (array) $parts as $part) {
- $filename .= '.' . $part;
- if ( preg_match("/^[a-zA-Z]{2,5}\d?$/", $part) ) {
- $allowed = false;
- foreach ( $mimes as $ext_preg => $mime_match ) {
- $ext_preg = '!^(' . $ext_preg . ')$!i';
- if ( preg_match( $ext_preg, $part ) ) {
- $allowed = true;
- break;
- }
- }
- if ( !$allowed )
- $filename .= '_';
- }
- }
- $filename .= '.' . $extension;
- /** This filter is documented in wp-includes/formatting.php */
- return apply_filters('sanitize_file_name', $filename, $filename_raw);
- }
- /**
- * Sanitizes a username, stripping out unsafe characters.
- *
- * Removes tags, octets, entities, and if strict is enabled, will only keep
- * alphanumeric, _, space, ., -, @. After sanitizing, it passes the username,
- * raw username (the username in the parameter), and the value of $strict as
- * parameters for the {@see 'sanitize_user'} filter.
- *
- * @since 2.0.0
- *
- * @param string $username The username to be sanitized.
- * @param bool $strict If set limits $username to specific characters. Default false.
- * @return string The sanitized username, after passing through filters.
- */
- function sanitize_user( $username, $strict = false ) {
- $raw_username = $username;
- $username = wp_strip_all_tags( $username );
- $username = remove_accents( $username );
- // Kill octets
- $username = preg_replace( '|%([a-fA-F0-9][a-fA-F0-9])|', '', $username );
- $username = preg_replace( '/&.+?;/', '', $username ); // Kill entities
- // If strict, reduce to ASCII for max portability.
- if ( $strict )
- $username = preg_replace( '|[^a-z0-9 _.\-@]|i', '', $username );
- $username = trim( $username );
- // Consolidate contiguous whitespace
- $username = preg_replace( '|\s+|', ' ', $username );
- /**
- * Filters a sanitized username string.
- *
- * @since 2.0.1
- *
- * @param string $username Sanitized username.
- * @param string $raw_username The username prior to sanitization.
- * @param bool $strict Whether to limit the sanitization to specific characters. Default false.
- */
- return apply_filters( 'sanitize_user', $username, $raw_username, $strict );
- }
- /**
- * Sanitizes a string key.
- *
- * Keys are used as internal identifiers. Lowercase alphanumeric characters, dashes and underscores are allowed.
- *
- * @since 3.0.0
- *
- * @param string $key String key
- * @return string Sanitized key
- */
- function sanitize_key( $key ) {
- $raw_key = $key;
- $key = strtolower( $key );
- $key = preg_replace( '/[^a-z0-9_\-]/', '', $key );
- /**
- * Filters a sanitized key string.
- *
- * @since 3.0.0
- *
- * @param string $key Sanitized key.
- * @param string $raw_key The key prior to sanitization.
- */
- return apply_filters( 'sanitize_key', $key, $raw_key );
- }
- /**
- * Sanitizes a title, or returns a fallback title.
- *
- * Specifically, HTML and PHP tags are stripped. Further actions can be added
- * via the plugin API. If $title is empty and $fallback_title is set, the latter
- * will be used.
- *
- * @since 1.0.0
- *
- * @param string $title The string to be sanitized.
- * @param string $fallback_title Optional. A title to use if $title is empty.
- * @param string $context Optional. The operation for which the string is sanitized
- * @return string The sanitized string.
- */
- function sanitize_title( $title, $fallback_title = '', $context = 'save' ) {
- $raw_title = $title;
- if ( 'save' == $context )
- $title = remove_accents($title);
- /**
- * Filters a sanitized title string.
- *
- * @since 1.2.0
- *
- * @param string $title Sanitized title.
- * @param string $raw_title The title prior to sanitization.
- * @param string $context The context for which the title is being sanitized.
- */
- $title = apply_filters( 'sanitize_title', $title, $raw_title, $context );
- if ( '' === $title || false === $title )
- $title = $fallback_title;
- return $title;
- }
- /**
- * Sanitizes a title with the 'query' context.
- *
- * Used for querying the database for a value from URL.
- *
- * @since 3.1.0
- *
- * @param string $title The string to be sanitized.
- * @return string The sanitized string.
- */
- function sanitize_title_for_query( $title ) {
- return sanitize_title( $title, '', 'query' );
- }
- /**
- * Sanitizes a title, replacing whitespace and a few other characters with dashes.
- *
- * Limits the output to alphanumeric characters, underscore (_) and dash (-).
- * Whitespace becomes a dash.
- *
- * @since 1.2.0
- *
- * @param string $title The title to be sanitized.
- * @param string $raw_title Optional. Not used.
- * @param string $context Optional. The operation for which the string is sanitized.
- * @return string The sanitized title.
- */
- function sanitize_title_with_dashes( $title, $raw_title = '', $context = 'display' ) {
- $title = strip_tags($title);
- // Preserve escaped octets.
- $title = preg_replace('|%([a-fA-F0-9][a-fA-F0-9])|', '---$1---', $title);
- // Remove percent signs that are not part of an octet.
- $title = str_replace('%', '', $title);
- // Restore octets.
- $title = preg_replace('|---([a-fA-F0-9][a-fA-F0-9])---|', '%$1', $title);
- if (seems_utf8($title)) {
- if (function_exists('mb_strtolower')) {
- $title = mb_strtolower($title, 'UTF-8');
- }
- $title = utf8_uri_encode($title, 200);
- }
- $title = strtolower($title);
- if ( 'save' == $context ) {
- // Convert nbsp, ndash and mdash to hyphens
- $title = str_replace( array( '%c2%a0', '%e2%80%93', '%e2%80%94' ), '-', $title );
- // Convert nbsp, ndash and mdash HTML entities to hyphens
- $title = str_replace( array( ' ', ' ', '–', '–', '—', '—' ), '-', $title );
- // Convert forward slash to hyphen
- $title = str_replace( '/', '-', $title );
- // Strip these characters entirely
- $title = str_replace( array(
- // iexcl and iquest
- '%c2%a1', '%c2%bf',
- // angle quotes
- '%c2%ab', '%c2%bb', '%e2%80%b9', '%e2%80%ba',
- // curly quotes
- '%e2%80%98', '%e2%80%99', '%e2%80%9c', '%e2%80%9d',
- '%e2%80%9a', '%e2%80%9b', '%e2%80%9e', '%e2%80%9f',
- // copy, reg, deg, hellip and trade
- '%c2%a9', '%c2%ae', '%c2%b0', '%e2%80%a6', '%e2%84%a2',
- // acute accents
- '%c2%b4', '%cb%8a', '%cc%81', '%cd%81',
- // grave accent, macron, caron
- '%cc%80', '%cc%84', '%cc%8c',
- ), '', $title );
- // Convert times to x
- $title = str_replace( '%c3%97', 'x', $title );
- }
- $title = preg_replace('/&.+?;/', '', $title); // kill entities
- $title = str_replace('.', '-', $title);
- $title = preg_replace('/[^%a-z0-9 _-]/', '', $title);
- $title = preg_replace('/\s+/', '-', $title);
- $title = preg_replace('|-+|', '-', $title);
- $title = trim($title, '-');
- return $title;
- }
- /**
- * Ensures a string is a valid SQL 'order by' clause.
- *
- * Accepts one or more columns, with or without a sort order (ASC / DESC).
- * e.g. 'column_1', 'column_1, column_2', 'column_1 ASC, column_2 DESC' etc.
- *
- * Also accepts 'RAND()'.
- *
- * @since 2.5.1
- *
- * @param string $orderby Order by clause to be validated.
- * @return string|false Returns $orderby if valid, false otherwise.
- */
- function sanitize_sql_orderby( $orderby ) {
- if ( preg_match( '/^\s*(([a-z0-9_]+|`[a-z0-9_]+`)(\s+(ASC|DESC))?\s*(,\s*(?=[a-z0-9_`])|$))+$/i', $orderby ) || preg_match( '/^\s*RAND\(\s*\)\s*$/i', $orderby ) ) {
- return $orderby;
- }
- return false;
- }
- /**
- * Sanitizes an HTML classname to ensure it only contains valid characters.
- *
- * Strips the string down to A-Z,a-z,0-9,_,-. If this results in an empty
- * string then it will return the alternative value supplied.
- *
- * @todo Expand to support the full range of CDATA that a class attribute can contain.
- *
- * @since 2.8.0
- *
- * @param string $class The classname to be sanitized
- * @param string $fallback Optional. The value to return if the sanitization ends up as an empty string.
- * Defaults to an empty string.
- * @return string The sanitized value
- */
- function sanitize_html_class( $class, $fallback = '' ) {
- //Strip out any % encoded octets
- $sanitized = preg_replace( '|%[a-fA-F0-9][a-fA-F0-9]|', '', $class );
- //Limit to A-Z,a-z,0-9,_,-
- $sanitized = preg_replace( '/[^A-Za-z0-9_-]/', '', $sanitized );
- if ( '' == $sanitized && $fallback ) {
- return sanitize_html_class( $fallback );
- }
- /**
- * Filters a sanitized HTML class string.
- *
- * @since 2.8.0
- *
- * @param string $sanitized The sanitized HTML class.
- * @param string $class HTML class before sanitization.
- * @param string $fallback The fallback string.
- */
- return apply_filters( 'sanitize_html_class', $sanitized, $class, $fallback );
- }
- /**
- * Converts lone & characters into `&` (a.k.a. `&`)
- *
- * @since 0.71
- *
- * @param string $content String of characters to be converted.
- * @param string $deprecated Not used.
- * @return string Converted string.
- */
- function convert_chars( $content, $deprecated = '' ) {
- if ( ! empty( $deprecated ) ) {
- _deprecated_argument( __FUNCTION__, '0.71' );
- }
- if ( strpos( $content, '&' ) !== false ) {
- $content = preg_replace( '/&([^#])(?![a-z1-4]{1,8};)/i', '&$1', $content );
- }
- return $content;
- }
- /**
- * Converts invalid Unicode references range to valid range.
- *
- * @since 4.3.0
- *
- * @param string $content String with entities that need converting.
- * @return string Converted string.
- */
- function convert_invalid_entities( $content ) {
- $wp_htmltranswinuni = array(
- '€' => '€', // the Euro sign
- '' => '',
- '‚' => '‚', // these are Windows CP1252 specific characters
- 'ƒ' => 'ƒ', // they would look weird on non-Windows browsers
- '„' => '„',
- '…' => '…',
- '†' => '†',
- '‡' => '‡',
- 'ˆ' => 'ˆ',
- '‰' => '‰',
- 'Š' => 'Š',
- '‹' => '‹',
- 'Œ' => 'Œ',
- '' => '',
- 'Ž' => 'Ž',
- '' => '',
- '' => '',
- '‘' => '‘',
- '’' => '’',
- '“' => '“',
- '”' => '”',
- '•' => '•',
- '–' => '–',
- '—' => '—',
- '˜' => '˜',
- '™' => '™',
- 'š' => 'š',
- '›' => '›',
- 'œ' => 'œ',
- '' => '',
- 'ž' => 'ž',
- 'Ÿ' => 'Ÿ'
- );
- if ( strpos( $content, '' ) !== false ) {
- $content = strtr( $content, $wp_htmltranswinuni );
- }
- return $content;
- }
- /**
- * Balances tags if forced to, or if the 'use_balanceTags' option is set to true.
- *
- * @since 0.71
- *
- * @param string $text Text to be balanced
- * @param bool $force If true, forces balancing, ignoring the value of the option. Default false.
- * @return string Balanced text
- */
- function balanceTags( $text, $force = false ) {
- if ( $force || get_option('use_balanceTags') == 1 ) {
- return force_balance_tags( $text );
- } else {
- return $text;
- }
- }
- /**
- * Balances tags of string using a modified stack.
- *
- * @since 2.0.4
- *
- * @author Leonard Lin <leonard@acm.org>
- * @license GPL
- * @copyright November 4, 2001
- * @version 1.1
- * @todo Make better - change loop condition to $text in 1.2
- * @internal Modified by Scott Reilly (coffee2code) 02 Aug 2004
- * 1.1 Fixed handling of append/stack pop order of end text
- * Added Cleaning Hooks
- * 1.0 First Version
- *
- * @param string $text Text to be balanced.
- * @return string Balanced text.
- */
- function force_balance_tags( $text ) {
- $tagstack = array();
- $stacksize = 0;
- $tagqueue = '';
- $newtext = '';
- // Known single-entity/self-closing tags
- $single_tags = array( 'area', 'base', 'basefont', 'br', 'col', 'command', 'embed', 'frame', 'hr', 'img', 'input', 'isindex', 'link', 'meta', 'param', 'source' );
- // Tags that can be immediately nested within themselves
- $nestable_tags = array( 'blockquote', 'div', 'object', 'q', 'span' );
- // WP bug fix for comments - in case you REALLY meant to type '< !--'
- $text = str_replace('< !--', '< !--', $text);
- // WP bug fix for LOVE <3 (and other situations with '<' before a number)
- $text = preg_replace('#<([0-9]{1})#', '<$1', $text);
- while ( preg_match("/<(\/?[\w:]*)\s*([^>]*)>/", $text, $regex) ) {
- $newtext .= $tagqueue;
- $i = strpos($text, $regex[0]);
- $l = strlen($regex[0]);
- // clear the shifter
- $tagqueue = '';
- // Pop or Push
- if ( isset($regex[1][0]) && '/' == $regex[1][0] ) { // End Tag
- $tag = strtolower(substr($regex[1],1));
- // if too many closing tags
- if ( $stacksize <= 0 ) {
- $tag = '';
- // or close to be safe $tag = '/' . $tag;
- }
- // if stacktop value = tag close value then pop
- elseif ( $tagstack[$stacksize - 1] == $tag ) { // found closing tag
- $tag = '</' . $tag . '>'; // Close Tag
- // Pop
- array_pop( $tagstack );
- $stacksize--;
- } else { // closing tag not at top, search for it
- for ( $j = $stacksize-1; $j >= 0; $j-- ) {
- if ( $tagstack[$j] == $tag ) {
- // add tag to tagqueue
- for ( $k = $stacksize-1; $k >= $j; $k--) {
- $tagqueue .= '</' . array_pop( $tagstack ) . '>';
- $stacksize--;
- }
- break;
- }
- }
- $tag = '';
- }
- } else { // Begin Tag
- $tag = strtolower($regex[1]);
- // Tag Cleaning
- // If it's an empty tag "< >", do nothing
- if ( '' == $tag ) {
- // do nothing
- }
- // ElseIf it presents itself as a self-closing tag...
- elseif ( substr( $regex[2], -1 ) == '/' ) {
- // ...but it isn't a known single-entity self-closing tag, then don't let it be treated as such and
- // immediately close it with a closing tag (the tag will encapsulate no text as a result)
- if ( ! in_array( $tag, $single_tags ) )
- $regex[2] = trim( substr( $regex[2], 0, -1 ) ) . "></$tag";
- }
- // ElseIf it's a known single-entity tag but it doesn't close itself, do so
- elseif ( in_array($tag, $single_tags) ) {
- $regex[2] .= '/';
- }
- // Else it's not a single-entity tag
- else {
- // If the top of the stack is the same as the tag we want to push, close previous tag
- if ( $stacksize > 0 && !in_array($tag, $nestable_tags) && $tagstack[$stacksize - 1] == $tag ) {
- $tagqueue = '</' . array_pop( $tagstack ) . '>';
- $stacksize--;
- }
- $stacksize = array_push( $tagstack, $tag );
- }
- // Attributes
- $attributes = $regex[2];
- if ( ! empty( $attributes ) && $attributes[0] != '>' )
- $attributes = ' ' . $attributes;
- $tag = '<' . $tag . $attributes . '>';
- //If already queuing a close tag, then put this tag on, too
- if ( !empty($tagqueue) ) {
- $tagqueue .= $tag;
- $tag = '';
- }
- }
- $newtext .= substr($text, 0, $i) . $tag;
- $text = substr($text, $i + $l);
- }
- // Clear Tag Queue
- $newtext .= $tagqueue;
- // Add Remaining text
- $newtext .= $text;
- // Empty Stack
- while( $x = array_pop($tagstack) )
- $newtext .= '</' . $x . '>'; // Add remaining tags to close
- // WP fix for the bug with HTML comments
- $newtext = str_replace("< !--","<!--",$newtext);
- $newtext = str_replace("< !--","< !--",$newtext);
- return $newtext;
- }
- /**
- * Acts on text which is about to be edited.
- *
- * The $content is run through esc_textarea(), which uses htmlspecialchars()
- * to convert special characters to HTML entities. If `$richedit` is set to true,
- * it is simply a holder for the {@see 'format_to_edit'} filter.
- *
- * @since 0.71
- * @since 4.4.0 The `$richedit` parameter was renamed to `$rich_text` for clarity.
- *
- * @param string $content The text about to be edited.
- * @param bool $rich_text Optional. Whether `$content` should be considered rich text,
- * in which case it would not be passed through esc_textarea().
- * Default false.
- * @return string The text after the filter (and possibly htmlspecialchars()) has been run.
- */
- function format_to_edit( $content, $rich_text = false ) {
- /**
- * Filters the text to be formatted for editing.
- *
- * @since 1.2.0
- *
- * @param string $content The text, prior to formatting for editing.
- */
- $content = apply_filters( 'format_to_edit', $content );
- if ( ! $rich_text )
- $content = esc_textarea( $content );
- return $content;
- }
- /**
- * Add leading zeros when necessary.
- *
- * If you set the threshold to '4' and the number is '10', then you will get
- * back '0010'. If you set the threshold to '4' and the number is '5000', then you
- * will get back '5000'.
- *
- * Uses sprintf to append the amount of zeros based on the $threshold parameter
- * and the size of the number. If the number is large enough, then no zeros will
- * be appended.
- *
- * @since 0.71
- *
- * @param int $number Number to append zeros to if not greater than threshold.
- * @param int $threshold Digit places number needs to be to not have zeros added.
- * @return string Adds leading zeros to number if needed.
- */
- function zeroise( $number, $threshold ) {
- return sprintf( '%0' . $threshold . 's', $number );
- }
- /**
- * Adds backslashes before letters and before a number at the start of a string.
- *
- * @since 0.71
- *
- * @param string $string Value to which backslashes will be added.
- * @return string String with backslashes inserted.
- */
- function backslashit( $string ) {
- if ( isset( $string[0] ) && $string[0] >= '0' && $string[0] <= '9' )
- $string = '\\\\' . $string;
- return addcslashes( $string, 'A..Za..z' );
- }
- /**
- * Appends a trailing slash.
- *
- * Will remove trailing forward and backslashes if it exists already before adding
- * a trailing forward slash. This prevents double slashing a string or path.
- *
- * The primary use of this is for paths and thus should be used for paths. It is
- * not restricted to paths and offers no specific path support.
- *
- * @since 1.2.0
- *
- * @param string $string What to add the trailing slash to.
- * @return string String with trailing slash added.
- */
- function trailingslashit( $string ) {
- return untrailingslashit( $string ) . '/';
- }
- /**
- * Removes trailing forward slashes and backslashes if they exist.
- *
- * The primary use of this is for paths and thus should be used for paths. It is
- * not restricted to paths and offers no specific path support.
- *
- * @since 2.2.0
- *
- * @param string $string What to remove the trailing slashes from.
- * @return string String without the trailing slashes.
- */
- function untrailingslashit( $string ) {
- return rtrim( $string, '/\\' );
- }
- /**
- * Adds slashes to escape strings.
- *
- * Slashes will first be removed if magic_quotes_gpc is set, see {@link
- * https://secure.php.net/magic_quotes} for more details.
- *
- * @since 0.71
- *
- * @param string $gpc The string returned from HTTP request data.
- * @return string Returns a string escaped with slashes.
- */
- function addslashes_gpc($gpc) {
- if ( get_magic_quotes_gpc() )
- $gpc = stripslashes($gpc);
- return wp_slash($gpc);
- }
- /**
- * Navigates through an array, object, or scalar, and removes slashes from the values.
- *
- * @since 2.0.0
- *
- * @param mixed $value The value to be stripped.
- * @return mixed Stripped value.
- */
- function stripslashes_deep( $value ) {
- return map_deep( $value, 'stripslashes_from_strings_only' );
- }
- /**
- * Callback function for `stripslashes_deep()` which strips slashes from strings.
- *
- * @since 4.4.0
- *
- * @param mixed $value The array or string to be stripped.
- * @return mixed $value The stripped value.
- */
- function stripslashes_from_strings_only( $value ) {
- return is_string( $value ) ? stripslashes( $value ) : $value;
- }
- /**
- * Navigates through an array, object, or scalar, and encodes the values to be used in a URL.
- *
- * @since 2.2.0
- *
- * @param mixed $value The array or string to be encoded.
- * @return mixed $value The encoded value.
- */
- function urlencode_deep( $value ) {
- return map_deep( $value, 'urlencode' );
- }
- /**
- * Navigates through an array, object, or scalar, and raw-encodes the values to be used in a URL.
- *
- * @since 3.4.0
- *
- * @param mixed $value The array or string to be encoded.
- * @return mixed $value The encoded value.
- */
- function rawurlencode_deep( $value ) {
- return map_deep( $value, 'rawurlencode' );
- }
- /**
- * Navigates through an array, object, or scalar, and decodes URL-encoded values
- *
- * @since 4.4.0
- *
- * @param mixed $value The array or string to be decoded.
- * @return mixed $value The decoded value.
- */
- function urldecode_deep( $value ) {
- return map_deep( $value, 'urldecode' );
- }
- /**
- * Converts email addresses characters to HTML entities to block spam bots.
- *
- * @since 0.71
- *
- * @param string $email_address Email address.
- * @param int $hex_encoding Optional. Set to 1 to enable hex encoding.
- * @return string Converted email address.
- */
- function antispambot( $email_address, $hex_encoding = 0 ) {
- $email_no_spam_address = '';
- for ( $i = 0, $len = strlen( $email_address ); $i < $len; $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 );
- }
- }
- return str_replace( '@', '@', $email_no_spam_address );
- }
- /**
- * Callback to convert URI match to HTML A element.
- *
- * This function was backported from 2.5.0 to 2.3.2. Regex callback for make_clickable().
- *
- * @since 2.3.2
- * @access private
- *
- * @param array $matches Single Regex Match.
- * @return string HTML A element with URI address.
- */
- 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;
- }
- /**
- * Callback to convert URL match to HTML A element.
- *
- * This function was backported from 2.5.0 to 2.3.2. Regex callback for make_clickable().
- *
- * @since 2.3.2
- * @access private
- *
- * @param array $matches Single Regex Match.
- * @return string HTML A element with URL address.
- */
- function _make_web_ftp_clickable_cb( $matches ) {
- $ret = '';
- $dest = $matches[2];
- $dest = 'http://' . $dest;
- // removed trailing [.,;:)] from URL
- if ( in_array( substr($dest, -1), array('.', ',', ';', ':', ')') ) === true ) {
- $ret = substr($dest, -1);
- $dest = substr($dest, 0, strlen($dest)-1);
- }
- $dest = esc_url($dest);
- if ( empty($dest) )
- return $matches[0];
- return $matches[1] . "<a href=\"$dest\" rel=\"nofollow\">$dest</a>$ret";
- }
- /**
- * Callback to convert email address match to HTML A element.
- *
- * This function was backported from 2.5.0 to 2.3.2. Regex callback for make_clickable().
- *
- * @since 2.3.2
- * @access private
- *
- * @param array $matches Single Regex Match.
- * @return string HTML A element with email address.
- */
- function _make_email_clickable_cb( $matches ) {
- $email = $matches[2] . '@' . $matches[3];
- return $matches[1] . "<a href=\"mailto:$email\">$email</a>";
- }
- /**
- * Convert plaintext URI to HTML links.
- *
- * Converts URI, www and ftp, and email addresses. Finishes by fixing links
- * within links.
- *
- * @since 0.71
- *
- * @param string $text Content to convert URIs.
- * @return string Content with converted URIs.
- */
- 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( '|^<pre[\s>]|i', $piece ) || preg_match( '|^<script[\s>]|i', $piece ) || preg_match( '|^<style[\s>]|i', $piece ) )
- $nested_code_pre++;
- elseif ( $nested_code_pre && ( '</code>' === strtolower( $piece ) || '</pre>' === strtolower( $piece ) || '</script>' === strtolower( $piece ) || '</style>' === strtolower( $piece ) ) )
- $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
- return preg_replace( '#(<a([ \r\n\t]+[^>]+?>|>))<a [^>]+?>([^>]+?)</a></a>#i', "$1$3</a>", $r );
- }
- /**
- * Breaks a string into chunks by splitting at whitespace characters.
- * The length of each returned chunk is as close to the specified length goal as possible,
- * with the caveat that each chunk includes its trailing delimiter.
- * Chunks longer than the goal are guaranteed to not have any inner whitespace.
- *
- * Joining the returned chunks with empty delimiters reconstructs the input string losslessly.
- *
- * Input string must have no null characters (or eventual transformations on output chunks must not care about null characters)
- *
- * _split_str_by_whitespace( "1234 67890 1234 67890a cd 1234 890 123456789 1234567890a 45678 1 3 5 7 90 ", 10 ) ==
- * array (
- * 0 => '1234 67890 ', // 11 characters: Perfect split
- * 1 => '1234 ', // 5 characters: '1234 67890a' was too long
- * 2 => '67890a cd ', // 10 characters: '67890a cd 1234' was too long
- * 3 => '1234 890 ', // 11 characters: Perfect split
- * 4 => '123456789 ', // 10 characters: '123456789 1234567890a' was too long
- * 5 => '1234567890a ', // 12 characters: Too long, but no inner whitespace on which to split
- * 6 => ' 45678 ', // 11 characters: Perfect split
- * 7 => '1 3 5 7 90 ', // 11 characters: End of $string
- * );
- *
- * @since 3.4.0
- * @access private
- *
- * @param string $string The string to split.
- * @param int $goal The desired chunk length.
- * @return array Numeric array of 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;
- }
- /**
- * Adds rel nofollow string to all HTML A elements in content.
- *
- * @since 1.5.0
- *
- * @param string $text Content that may contain HTML A elements.
- * @return string Converted content.
- */
- 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);
- return wp_slash( $text );
- }
- /**
- * Callback to add rel=nofollow string to HTML A element.
- *
- * Will remove already existing rel="nofollow" and rel='nofollow' from the
- * string to prevent from invalidating (X)HTML.
- *
- * @since 2.3.0
- *
- * @param array $matches Single Match
- * @return string HTML A Element with rel nofollow.
- */
- function wp_rel_nofollow_callback( $matches ) {
- $text = $matches[1];
- $atts = shortcode_parse_atts( $matches[1] );
- $rel = 'nofollow';
- if ( preg_match( '%href=["\'](' . preg_quote( set_url_scheme( home_url(), 'http' ) ) . ')%i', $text ) ||
- preg_match( '%href=["\'](' . preg_quote( set_url_scheme( home_url(), 'https' ) ) . ')%i', $text )
- ) {
- return "<a $text>";
- }
- if ( ! empty( $atts['rel'] ) ) {
- $parts = array_map( 'trim', explode( ' ', $atts['rel'] ) );
- if ( false === array_search( 'nofollow', $parts ) ) {
- $parts[] = 'nofollow';
- }
- $rel = implode( ' ', $parts );
- unset( $atts['rel'] );
- $html = '';
- foreach ( $atts as $name => $value ) {
- $html .= "{$name}=\"$value\" ";
- }
- $text = trim( $html );
- }
- return "<a $text rel=\"$rel\">";
- }
- /**
- * Convert one smiley code to the icon graphic file equivalent.
- *
- * Callback handler for convert_smilies().
- *
- * Looks up one smiley code in the $wpsmiliestrans global array and returns an
- * `<img>` string for that smiley.
- *
- * @since 2.8.0
- *
- * @global array $wpsmiliestrans
- *
- * @param array $matches Single match. Smiley code to convert to image.
- * @return string Image string for smiley.
- */
- function translate_smiley( $matches ) {
- global $wpsmiliestrans;
- if ( count( $matches ) == 0 )
- return '';
- $smiley = trim( reset( $matches ) );
- $img = $wpsmiliestrans[ $smiley ];
- $matches = array();
- $ext = preg_match( '/\.([^.]+)$/', $img, $matches ) ? strtolower( $matches[1] ) : false;
- $image_exts = array( 'jpg', 'jpeg', 'jpe', 'gif', 'png' );
- // Don't convert smilies that aren't images - they're probably emoji.
- if ( ! in_array( $ext, $image_exts ) ) {
- return $img;
- }
- /**
- * Filters the Smiley image URL before it's used in the image element.
- *
- * @since 2.9.0
- *
- * @param string $smiley_url URL for the smiley image.
- * @param string $img Filename for the smiley image.
- * @param string $site_url Site URL, as returned by site_url().
- */
- $src_url = apply_filters( 'smilies_src', includes_url( "images/smilies/$img" ), $img, site_url() );
- return sprintf( '<img src="%s" alt="%s" class="wp-smiley" style="height: 1em; max-height: 1em;" />', esc_url( $src_url ), esc_attr( $smiley ) );
- }
- /**
- * Convert text equivalent of smilies to images.
- *
- * Will only convert smilies if the option 'use_smilies' is true and the global
- * used in the function isn't empty.
- *
- * @since 0.71
- *
- * @global string|array $wp_smiliessearch
- *
- * @param string $text Content to convert smilies from text.
- * @return string Converted content with text smilies replaced with images.
- */
- 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;
- }
- /**
- * Verifies that an email is valid.
- *
- * Does not grok i18n domains. Not RFC compliant.
- *
- * @since 0.71
- *
- * @param string $email Email address to verify.
- * @param bool $deprecated Deprecated.
- * @return string|bool Either false or the valid email address.
- */
- function is_email( $email, $deprecated = false ) {
- if ( ! empty( $deprecated ) )
- _deprecated_argument( __FUNCTION__, '3.0.0' );
- // Test for the minimum length the email can be
- if ( strlen( $email ) < 6 ) {
- /**
- * Filters whether an email address is valid.
- *
- * This filter is evaluated under several different contexts, such as 'email_too_short',
- * 'email_no_at', 'local_invalid_chars', 'domain_period_sequence', 'domain_period_limits',
- * 'domain_no_periods', 'sub_hyphen_limits', 'sub_invalid_chars', or no specific context.
- *
- * @since 2.8.0
- *
- * @param bool $is_email Whether the email address has passed the is_email() checks. Default false.
- * @param string $email The email address being checked.
- * @param string $context Context under which the email was tested.
- */
- return apply_filters( 'is_email', false, $email, 'email_too_short' );
- }
- // Test for an @ character after the first position
- if ( strpos( $email, '@', 1 ) === false ) {
- /** This filter is documented in wp-includes/formatting.php */
- return apply_filters( 'is_email', false, $email, 'email_no_at' );
- }
- // Split out the local and domain parts
- list( $local, $domain ) = explode( '@', $email, 2 );
- // LOCAL PART
- // Test for invalid characters
- if ( !preg_match( '/^[a-zA-Z0-9!#$%&\'*+\/=?^_`{|}~\.-]+$/', $local ) ) {
- /** This filter is documented in wp-includes/formatting.php */
- return apply_filters( 'is_email', false, $email, 'local_invalid_chars' );
- }
- // DOMAIN PART
- // Test for sequences of periods
- if ( preg_match( '/\.{2,}/', $domain ) ) {
- /** This filter is documented in wp-includes/formatting.php */
- return apply_filters( 'is_email', false, $email, 'domain_period_sequence' );
- }
- // Test for leading and trailing periods and whitespace
- if ( trim( $domain, " \t\n\r\0\x0B." ) !== $domain ) {
- /** This filter is documented in wp-includes/formatting.php */
- return apply_filters( 'is_email', false, $email, 'domain_period_limits' );
- }
- // Split the domain into subs
- $subs = explode( '.', $domain );
- // Assume the domain will have at least two subs
- if ( 2 > count( $subs ) ) {
- /** This filter is documented in wp-includes/formatting.php */
- return apply_filters( 'is_email', false, $email, 'domain_no_periods' );
- }
- // Loop through each sub
- foreach ( $subs as $sub ) {
- // Test for leading and trailing hyphens and whitespace
- if ( trim( $sub, " \t\n\r\0\x0B-" ) !== $sub ) {
- /** This filter is documented in wp-includes/formatting.php */
- return apply_filters( 'is_email', false, $email, 'sub_hyphen_limits' );
- }
- // Test for invalid characters
- if ( !preg_match('/^[a-z0-9-]+$/i', $sub ) ) {
- /** This filter is documented in wp-includes/formatting.php */
- return apply_filters( 'is_email', false, $email, 'sub_invalid_chars' );
- }
- }
- // Congratulations your email made it!
- /** This filter is documented in wp-includes/formatting.php */
- return apply_filters( 'is_email', $email, $email, null );
- }
- /**
- * Convert to ASCII from email subjects.
- *
- * @since 1.2.0
- *
- * @param string $string Subject line
- * @return string Converted string to ASCII
- */
- function wp_iso_descrambler( $string ) {
- /* this may only work with iso-8859-1, I'm afraid */
- if (!preg_match('#\=\?(.+)\?Q\?(.+)\?\=#i', $string, $matches)) {
- return $string;
- } else {
- $subject = str_replace('_', ' ', $matches[2]);
- return preg_replace_callback( '#\=([0-9a-f]{2})#i', '_wp_iso_convert', $subject );
- }
- }
- /**
- * Helper function to convert hex encoded chars to ASCII
- *
- * @since 3.1.0
- * @access private
- *
- * @param array $match The preg_replace_callback matches array
- * @return string Converted chars
- */
- function _wp_iso_convert( $match ) {
- return chr( hexdec( strtolower( $match[1] ) ) );
- }
- /**
- * Returns a date in the GMT equivalent.
- *
- * Requires and returns a date in the Y-m-d H:i:s format. If there is a
- * timezone_string available, the date is assumed to be in that timezone,
- * otherwise it simply subtracts the value of the 'gmt_offset' option. Return
- * format can be overridden using the $format parameter.
- *
- * @since 1.2.0
- *
- * @param string $string The date to be converted.
- * @param string $format The format string for the returned date (default is Y-m-d H:i:s)
- * @return string GMT version of the date provided.
- */
- function get_gmt_from_date( $string, $format = 'Y-m-d H:i:s' ) {
- $tz = get_option( 'timezone_string' );
- if ( $tz ) {
- $datetime = date_create( $string, new DateTimeZone( $tz ) );
- if ( ! $datetime ) {
- return gmdate( $format, 0 );
- }
- $datetime->setTimezone( new DateTimeZone( 'UTC' ) );
- $string_gmt = $datetime->format( $format );
- } else {
- if ( ! preg_match( '#([0-9]{1,4})-([0-9]{1,2})-([0-9]{1,2}) ([0-9]{1,2}):([0-9]{1,2}):([0-9]{1,2})#', $string, $matches ) ) {
- $datetime = strtotime( $string );
- if ( false === $datetime ) {
- return gmdate( $format, 0 );
- }
- return gmdate( $format, $datetime );
- }
- $string_time = gmmktime( $matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1] );
- $string_gmt = gmdate( $format, $string_time - get_option( 'gmt_offset' ) * HOUR_IN_SECONDS );
- }
- return $string_gmt;
- }
- /**
- * Converts a GMT date into the correct format for the blog.
- *
- * Requires and returns a date in the Y-m-d H:i:s format. If there is a
- * timezone_string available, the returned date is in that timezone, otherwise
- * it simply adds the value of gmt_offset. Return format can be overridden
- * using the $format parameter
- *
- * @since 1.2.0
- *
- * @param string $string The date to be converted.
- * @param string $format The format string for the returned date (default is Y-m-d H:i:s)
- * @return string Formatted date relative to the timezone / GMT offset.
- */
- function get_date_from_gmt( $string, $format = 'Y-m-d H:i:s' ) {
- $tz = get_option( 'timezone_string' );
- if ( $tz ) {
- $datetime = date_create( $string, new DateTimeZone( 'UTC' ) );
- if ( ! $datetime )
- return date( $format, 0 );
- $datetime->setTimezone( new DateTimeZone( $tz ) );
- $string_localtime = $datetime->format( $format );
- } else {
- if ( ! preg_match('#([0-9]{1,4})-([0-9]{1,2})-([0-9]{1,2}) ([0-9]{1,2}):([0-9]{1,2}):([0-9]{1,2})#', $string, $matches) )
- return date( $format, 0 );
- $string_time = gmmktime( $matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1] );
- $string_localtime = gmdate( $format, $string_time + get_option( 'gmt_offset' ) * HOUR_IN_SECONDS );
- }
- return $string_localtime;
- }
- /**
- * Computes an offset in seconds from an iso8601 timezone.
- *
- * @since 1.5.0
- *
- * @param string $timezone Either 'Z' for 0 offset or '±hhmm'.
- * @return int|float The offset in seconds.
- */
- function iso8601_timezone_to_offset( $timezone ) {
- // $timezone is either 'Z' or '[+|-]hhmm'
- if ($timezone == 'Z') {
- $offset = 0;
- } else {
- $sign = (substr($timezone, 0, 1) == '+') ? 1 : -1;
- $hours = intval(substr($timezone, 1, 2));
- $minutes = intval(substr($timezone, 3, 4)) / 60;
- $offset = $sign * HOUR_IN_SECONDS * ($hours + $minutes);
- }
- return $offset;
- }
- /**
- * Converts an iso8601 date to MySQL DateTime format used by post_date[_gmt].
- *
- * @since 1.5.0
- *
- * @param string $date_string Date and time in ISO 8601 format {@link https://en.wikipedia.org/wiki/ISO_8601}.
- * @param string $timezone Optional. If set to GMT returns the time minus gmt_offset. Default is 'user'.
- * @return string The date and time in MySQL DateTime format - Y-m-d H:i:s.
- */
- function iso8601_to_datetime( $date_string, $timezone = 'user' ) {
- $timezone = strtolower($timezone);
- if ($timezone == 'gmt') {
- preg_match('#([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})(Z|[\+|\-][0-9]{2,4}){0,1}#', $date_string, $date_bits);
- if (!empty($date_bits[7])) { // we have a timezone, so let's compute an offset
- $offset = iso8601_timezone_to_offset($date_bits[7]);
- } else { // we don't have a timezone, so we assume user local timezone (not server's!)
- $offset = HOUR_IN_SECONDS * get_option('gmt_offset');
- }
- $timestamp = gmmktime($date_bits[4], $date_bits[5], $date_bits[6], $date_bits[2], $date_bits[3], $date_bits[1]);
- $timestamp -= $offset;
- return gmdate('Y-m-d H:i:s', $timestamp);
- } elseif ($timezone == 'user') {
- return preg_replace('#([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})(Z|[\+|\-][0-9]{2,4}){0,1}#', '$1-$2-$3 $4:$5:$6', $date_string);
- }
- }
- /**
- * Strips out all characters that are not allowable in an email.
- *
- * @since 1.5.0
- *
- * @param string $email Email address to filter.
- * @return string Filtered email address.
- */
- function sanitize_email( $email ) {
- // Test for the minimum length the email can be
- if ( strlen( $email ) < 6 ) {
- /**
- * Filters a sanitized email address.
- *
- * This filter is evaluated under several contexts, including 'email_too_short',
- * 'email_no_at', 'local_invalid_chars', 'domain_period_sequence', 'domain_period_limits',
- * 'domain_no_periods', 'domain_no_valid_subs', or no context.
- *
- * @since 2.8.0
- *
- * @param string $email The sanitized email address.
- * @param string $email The email address, as provided to sanitize_email().
- * @param string $message A message to pass to the user.
- */
- return apply_filters( 'sanitize_email', '', $email, 'email_too_short' );
- }
- // Test for an @ character after the first position
- if ( strpos( $email, '@', 1 ) === false ) {
- /** This filter is documented in wp-includes/formatting.php */
- return apply_filters( 'sanitize_email', '', $email, 'email_no_at' );
- }
- // Split out the local and domain parts
- list( $local, $domain ) = explode( '@', $email, 2 );
- // LOCAL PART
- // Test for invalid characters
- $local = preg_replace( '/[^a-zA-Z0-9!#$%&\'*+\/=?^_`{|}~\.-]/', '', $local );
- if ( '' === $local ) {
- /** This filter is documented in wp-includes/formatting.php */
- return apply_filters( 'sanitize_email', '', $email, 'local_invalid_chars' );
- }
- // DOMAIN PART
- // Test for sequences of periods
- $domain = preg_replace( '/\.{2,}/', '', $domain );
- if ( '' === $domain ) {
- /** This filter is documented in wp-includes/formatting.php */
- return apply_filters( 'sanitize_email', '', $email, 'domain_period_sequence' );
- }
- // Test for leading and trailing periods and whitespace
- $domain = trim( $domain, " \t\n\r\0\x0B." );
- if ( '' === $domain ) {
- /** This filter is documented in wp-includes/formatting.php */
- return apply_filters( 'sanitize_email', '', $email, 'domain_period_limits' );
- }
- // Split the domain into subs
- $subs = explode( '.', $domain );
- // Assume the domain will have at least two subs
- if ( 2 > count( $subs ) ) {
- /** This filter is documented in wp-includes/formatting.php */
- return apply_filters( 'sanitize_email', '', $email, 'domain_no_periods' );
- }
- // Create an array that will contain valid subs
- $new_subs = array();
- // Loop through each sub
- foreach ( $subs as $sub ) {
- // Test for leading and trailing hyphens
- $sub = trim( $sub, " \t\n\r\0\x0B-" );
- // Test for invalid characters
- $sub = preg_replace( '/[^a-z0-9-]+/i', '', $sub );
- // If there's anything left, add it to the valid subs
- if ( '' !== $sub ) {
- $new_subs[] = $sub;
- }
- }
- // If there aren't 2 or more valid subs
- if ( 2 > count( $new_subs ) ) {
- /** This filter is documented in wp-includes/formatting.php */
- return apply_filters( 'sanitize_email', '', $email, 'domain_no_valid_subs' );
- }
- // Join valid subs into the new domain
- $domain = join( '.', $new_subs );
- // Put the email back together
- $email = $local . '@' . $domain;
- // Congratulations your email made it!
- /** This filter is documented in wp-includes/formatting.php */
- return apply_filters( 'sanitize_email', $email, $email, null );
- }
- /**
- * Determines the difference between two timestamps.
- *
- * The difference is returned in a human readable format such as "1 hour",
- * "5 mins", "2 days".
- *
- * @since 1.5.0
- *
- * @param int $from Unix timestamp from which the difference begins.
- * @param int $to Optional. Unix timestamp to end the time difference. Default becomes time() if not set.
- * @return string Human readable time difference.
- */
- function human_time_diff( $from, $to = '' ) {
- if ( empty( $to ) ) {
- $to = time();
- }
- $diff = (int) abs( $to - $from );
- if ( $diff < HOUR_IN_SECONDS ) {
- $mins = round( $diff / MINUTE_IN_SECONDS );
- if ( $mins <= 1 )
- $mins = 1;
- /* translators: Time difference between two dates, in minutes (min=minute). 1: Number of minutes */
- $since = sprintf( _n( '%s min', '%s mins', $mins ), $mins );
- } elseif ( $diff < DAY_IN_SECONDS && $diff >= HOUR_IN_SECONDS ) {
- $hours = round( $diff / HOUR_IN_SECONDS );
- if ( $hours <= 1 )
- $hours = 1;
- /* translators: Time difference between two dates, in hours. 1: Number of hours */
- $since = sprintf( _n( '%s hour', '%s hours', $hours ), $hours );
- } elseif ( $diff < WEEK_IN_SECONDS && $diff >= DAY_IN_SECONDS ) {
- $days = round( $diff / DAY_IN_SECONDS );
- if ( $days <= 1 )
- $days = 1;
- /* translators: Time difference between two dates, in days. 1: Number of days */
- $since = sprintf( _n( '%s day', '%s days', $days ), $days );
- } elseif ( $diff < MONTH_IN_SECONDS && $diff >= WEEK_IN_SECONDS ) {
- $weeks = round( $diff / WEEK_IN_SECONDS );
- if ( $weeks <= 1 )
- $weeks = 1;
- /* translators: Time difference between two dates, in weeks. 1: Number of weeks */
- $since = sprintf( _n( '%s week', '%s weeks', $weeks ), $weeks );
- } elseif ( $diff < YEAR_IN_SECONDS && $diff >= MONTH_IN_SECONDS ) {
- $months = round( $diff / MONTH_IN_SECONDS );
- if ( $months <= 1 )
- $months = 1;
- /* translators: Time difference between two dates, in months. 1: Number of months */
- $since = sprintf( _n( '%s month', '%s months', $months ), $months );
- } elseif ( $diff >= YEAR_IN_SECONDS ) {
- $years = round( $diff / YEAR_IN_SECONDS );
- if ( $years <= 1 )
- $years = 1;
- /* translators: Time difference between two dates, in years. 1: Number of years */
- $since = sprintf( _n( '%s year', '%s years', $years ), $years );
- }
- /**
- * Filters the human readable difference between two timestamps.
- *
- * @since 4.0.0
- *
- * @param string $since The difference in human readable text.
- * @param int $diff The difference in seconds.
- * @param int $from Unix timestamp from which the difference begins.
- * @param int $to Unix timestamp to end the time difference.
- */
- return apply_filters( 'human_time_diff', $since, $diff, $from, $to );
- }
- /**
- * Generates an excerpt from the content, if needed.
- *
- * The excerpt word amount will be 55 words and if the amount is greater than
- * that, then the string ' […]' will be appended to the excerpt. If the string
- * is less than 55 words, then the content will be returned as is.
- *
- * The 55 word limit can be modified by plugins/themes using the {@see 'excerpt_length'} filter
- * The ' […]' string can be modified by plugins/themes using the {@see 'excerpt_more'} filter
- *
- * @since 1.5.0
- *
- * @param string $text Optional. The excerpt. If set to empty, an excerpt is generated.
- * @return string The excerpt.
- */
- function wp_trim_excerpt( $text = '' ) {
- $raw_excerpt = $text;
- if ( '' == $text ) {
- $text = get_the_content('');
- $text = strip_shortcodes( $text );
- /** This filter is documented in wp-includes/post-template.php */
- $text = apply_filters( 'the_content', $text );
- $text = str_replace(']]>', ']]>', $text);
- /**
- * Filters the number of words in an excerpt.
- *
- * @since 2.7.0
- *
- * @param int $number The number of words. Default 55.
- */
- $excerpt_length = apply_filters( 'excerpt_length', 55 );
- /**
- * Filters the string in the "more" link displayed after a trimmed excerpt.
- *
- * @since 2.9.0
- *
- * @param string $more_string The string shown within the more link.
- */
- $excerpt_more = apply_filters( 'excerpt_more', ' ' . '[…]' );
- $text = wp_trim_words( $text, $excerpt_length, $excerpt_more );
- }
- /**
- * Filters the trimmed excerpt string.
- *
- * @since 2.8.0
- *
- * @param string $text The trimmed text.
- * @param string $raw_excerpt The text prior to trimming.
- */
- return apply_filters( 'wp_trim_excerpt', $text, $raw_excerpt );
- }
- /**
- * Trims text to a certain number of words.
- *
- * This function is localized. For languages that count 'words' by the individual
- * character (such as East Asian languages), the $num_words argument will apply
- * to the number of individual characters.
- *
- * @since 3.3.0
- *
- * @param string $text Text to trim.
- * @param int $num_words Number of words. Default 55.
- * @param string $more Optional. What to append if $text needs to be trimmed. Default '…'.
- * @return string Trimmed text.
- */
- function wp_trim_words( $text, $num_words = 55, $more = null ) {
- if ( null === $more ) {
- $more = __( '…' );
- }
- $original_text = $text;
- $text = wp_strip_all_tags( $text );
- /*
- * translators: If your word count is based on single characters (e.g. East Asian characters),
- * enter 'characters_excluding_spaces' or 'characters_including_spaces'. Otherwise, enter 'words'.
- * Do not translate into your own language.
- */
- if ( strpos( _x( 'words', 'Word count type. Do not translate!' ), 'characters' ) === 0 && preg_match( '/^utf\-?8$/i', get_option( 'blog_charset' ) ) ) {
- $text = trim( preg_replace( "/[\n\r\t ]+/", ' ', $text ), ' ' );
- preg_match_all( '/./u', $text, $words_array );
- $words_array = array_slice( $words_array[0], 0, $num_words + 1 );
- $sep = '';
- } else {
- $words_array = preg_split( "/[\n\r\t ]+/", $text, $num_words + 1, PREG_SPLIT_NO_EMPTY );
- $sep = ' ';
- }
- if ( count( $words_array ) > $num_words ) {
- array_pop( $words_array );
- $text = implode( $sep, $words_array );
- $text = $text . $more;
- } else {
- $text = implode( $sep, $words_array );
- }
- /**
- * Filters the text content after words have been trimmed.
- *
- * @since 3.3.0
- *
- * @param string $text The trimmed text.
- * @param int $num_words The number of words to trim the text to. Default 55.
- * @param string $more An optional string to append to the end of the trimmed text, e.g. ….
- * @param string $original_text The text before it was trimmed.
- */
- return apply_filters( 'wp_trim_words', $text, $num_words, $more, $original_text );
- }
- /**
- * Converts named entities into numbered entities.
- *
- * @since 1.5.1
- *
- * @param string $text The text within which entities will be converted.
- * @return string Text with converted entities.
- */
- function ent2ncr( $text ) {
- /**
- * Filters text before named entities are converted into numbered entities.
- *
- * A non-null string must be returned for the filter to be evaluated.
- *
- * @since 3.3.0
- *
- * @param null $converted_text The text to be converted. Default null.
- * @param string $text The text prior to entity conversion.
- */
- $filtered = apply_filters( 'pre_ent2ncr', null, $text );
- if ( null !== $filtered )
- return $filtered;
- $to_ncr = array(
- '"' => '"',
- '&' => '&',
- '<' => '<',
- '>' => '>',
- '|' => '|',
- ' ' => ' ',
- '¡' => '¡',
- '¢' => '¢',
- '£' => '£',
- '¤' => '¤',
- '¥' => '¥',
- '¦' => '¦',
- '&brkbar;' => '¦',
- '§' => '§',
- '¨' => '¨',
- '¨' => '¨',
- '©' => '©',
- 'ª' => 'ª',
- '«' => '«',
- '¬' => '¬',
- '­' => '­',
- '®' => '®',
- '¯' => '¯',
- '&hibar;' => '¯',
- '°' => '°',
- '±' => '±',
- '²' => '²',
- '³' => '³',
- '´' => '´',
- 'µ' => 'µ',
- '¶' => '¶',
- '·' => '·',
- '¸' => '¸',
- '¹' => '¹',
- 'º' => 'º',
- '»' => '»',
- '¼' => '¼',
- '½' => '½',
- '¾' => '¾',
- '¿' => '¿',
- 'À' => 'À',
- 'Á' => 'Á',
- 'Â' => 'Â',
- 'Ã' => 'Ã',
- 'Ä' => 'Ä',
- 'Å' => 'Å',
- 'Æ' => 'Æ',
- 'Ç' => 'Ç',
- 'È' => 'È',
- 'É' => 'É',
- 'Ê' => 'Ê',
- 'Ë' => 'Ë',
- 'Ì' => 'Ì',
- 'Í' => 'Í',
- 'Î' => 'Î',
- 'Ï' => 'Ï',
- 'Ð' => 'Ð',
- 'Ñ' => 'Ñ',
- 'Ò' => 'Ò',
- 'Ó' => 'Ó',
- 'Ô' => 'Ô',
- 'Õ' => 'Õ',
- 'Ö' => 'Ö',
- '×' => '×',
- 'Ø' => 'Ø',
- 'Ù' => 'Ù',
- 'Ú' => 'Ú',
- 'Û' => 'Û',
- 'Ü' => 'Ü',
- 'Ý' => 'Ý',
- 'Þ' => 'Þ',
- 'ß' => 'ß',
- 'à' => 'à',
- 'á' => 'á',
- 'â' => 'â',
- 'ã' => 'ã',
- 'ä' => 'ä',
- 'å' => 'å',
- 'æ' => 'æ',
- 'ç' => 'ç',
- 'è' => 'è',
- 'é' => 'é',
- 'ê' => 'ê',
- 'ë' => 'ë',
- 'ì' => 'ì',
- 'í' => 'í',
- 'î' => 'î',
- 'ï' => 'ï',
- 'ð' => 'ð',
- 'ñ' => 'ñ',
- 'ò' => 'ò',
- 'ó' => 'ó',
- 'ô' => 'ô',
- 'õ' => 'õ',
- 'ö' => 'ö',
- '÷' => '÷',
- 'ø' => 'ø',
- 'ù' => 'ù',
- 'ú' => 'ú',
- 'û' => 'û',
- 'ü' => 'ü',
- 'ý' => 'ý',
- 'þ' => 'þ',
- 'ÿ' => 'ÿ',
- 'Œ' => 'Œ',
- 'œ' => 'œ',
- 'Š' => 'Š',
- 'š' => 'š',
- 'Ÿ' => 'Ÿ',
- 'ƒ' => 'ƒ',
- 'ˆ' => 'ˆ',
- '˜' => '˜',
- 'Α' => 'Α',
- 'Β' => 'Β',
- 'Γ' => 'Γ',
- 'Δ' => 'Δ',
- 'Ε' => 'Ε',
- 'Ζ' => 'Ζ',
- 'Η' => 'Η',
- 'Θ' => 'Θ',
- 'Ι' => 'Ι',
- 'Κ' => 'Κ',
- 'Λ' => 'Λ',
- 'Μ' => 'Μ',
- 'Ν' => 'Ν',
- 'Ξ' => 'Ξ',
- 'Ο' => 'Ο',
- 'Π' => 'Π',
- 'Ρ' => 'Ρ',
- 'Σ' => 'Σ',
- 'Τ' => 'Τ',
- 'Υ' => 'Υ',
- 'Φ' => 'Φ',
- 'Χ' => 'Χ',
- 'Ψ' => 'Ψ',
- 'Ω' => 'Ω',
- 'α' => 'α',
- 'β' => 'β',
- 'γ' => 'γ',
- 'δ' => 'δ',
- 'ε' => 'ε',
- 'ζ' => 'ζ',
- 'η' => 'η',
- 'θ' => 'θ',
- 'ι' => 'ι',
- 'κ' => 'κ',
- 'λ' => 'λ',
- 'μ' => 'μ',
- 'ν' => 'ν',
- 'ξ' => 'ξ',
- 'ο' => 'ο',
- 'π' => 'π',
- 'ρ' => 'ρ',
- 'ς' => 'ς',
- 'σ' => 'σ',
- 'τ' => 'τ',
- 'υ' => 'υ',
- 'φ' => 'φ',
- 'χ' => 'χ',
- 'ψ' => 'ψ',
- 'ω' => 'ω',
- 'ϑ' => 'ϑ',
- 'ϒ' => 'ϒ',
- 'ϖ' => 'ϖ',
- ' ' => ' ',
- ' ' => ' ',
- ' ' => ' ',
- '‌' => '‌',
- '‍' => '‍',
- '‎' => '‎',
- '‏' => '‏',
- '–' => '–',
- '—' => '—',
- '‘' => '‘',
- '’' => '’',
- '‚' => '‚',
- '“' => '“',
- '”' => '”',
- '„' => '„',
- '†' => '†',
- '‡' => '‡',
- '•' => '•',
- '…' => '…',
- '‰' => '‰',
- '′' => '′',
- '″' => '″',
- '‹' => '‹',
- '›' => '›',
- '‾' => '‾',
- '⁄' => '⁄',
- '€' => '€',
- 'ℑ' => 'ℑ',
- '℘' => '℘',
- 'ℜ' => 'ℜ',
- '™' => '™',
- 'ℵ' => 'ℵ',
- '↵' => '↵',
- '⇐' => '⇐',
- '⇑' => '⇑',
- '⇒' => '⇒',
- '⇓' => '⇓',
- '⇔' => '⇔',
- '∀' => '∀',
- '∂' => '∂',
- '∃' => '∃',
- '∅' => '∅',
- '∇' => '∇',
- '∈' => '∈',
- '∉' => '∉',
- '∋' => '∋',
- '∏' => '∏',
- '∑' => '∑',
- '−' => '−',
- '∗' => '∗',
- '√' => '√',
- '∝' => '∝',
- '∞' => '∞',
- '∠' => '∠',
- '∧' => '∧',
- '∨' => '∨',
- '∩' => '∩',
- '∪' => '∪',
- '∫' => '∫',
- '∴' => '∴',
- '∼' => '∼',
- '≅' => '≅',
- '≈' => '≈',
- '≠' => '≠',
- '≡' => '≡',
- '≤' => '≤',
- '≥' => '≥',
- '⊂' => '⊂',
- '⊃' => '⊃',
- '⊄' => '⊄',
- '⊆' => '⊆',
- '⊇' => '⊇',
- '⊕' => '⊕',
- '⊗' => '⊗',
- '⊥' => '⊥',
- '⋅' => '⋅',
- '⌈' => '⌈',
- '⌉' => '⌉',
- '⌊' => '⌊',
- '⌋' => '⌋',
- '⟨' => '〈',
- '⟩' => '〉',
- '←' => '←',
- '↑' => '↑',
- '→' => '→',
- '↓' => '↓',
- '↔' => '↔',
- '◊' => '◊',
- '♠' => '♠',
- '♣' => '♣',
- '♥' => '♥',
- '♦' => '♦'
- );
- return str_replace( array_keys($to_ncr), array_values($to_ncr), $text );
- }
- /**
- * Formats text for the editor.
- *
- * Generally the browsers treat everything inside a textarea as text, but
- * it is still a good idea to HTML entity encode `<`, `>` and `&` in the content.
- *
- * The filter {@see 'format_for_editor'} is applied here. If `$text` is empty the
- * filter will be applied to an empty string.
- *
- * @since 4.3.0
- *
- * @see _WP_Editors::editor()
- *
- * @param string $text The text to be formatted.
- * @param string $default_editor The default editor for the current user.
- * It is usually either 'html' or 'tinymce'.
- * @return string The formatted text after filter is applied.
- */
- function format_for_editor( $text, $default_editor = null ) {
- if ( $text ) {
- $text = htmlspecialchars( $text, ENT_NOQUOTES, get_option( 'blog_charset' ) );
- }
- /**
- * Filters the text after it is formatted for the editor.
- *
- * @since 4.3.0
- *
- * @param string $text The formatted text.
- * @param string $default_editor The default editor for the current user.
- * It is usually either 'html' or 'tinymce'.
- */
- return apply_filters( 'format_for_editor', $text, $default_editor );
- }
- /**
- * Perform a deep string replace operation to ensure the values in $search are no longer present
- *
- * Repeats the replacement operation until it no longer replaces anything so as to remove "nested" values
- * e.g. $subject = '%0%0%0DDD', $search ='%0D', $result ='' rather than the '%0%0DD' that
- * str_replace would return
- *
- * @since 2.8.1
- * @access private
- *
- * @param string|array $search The value being searched for, otherwise known as the needle.
- * An array may be used to designate multiple needles.
- * @param string $subject The string being searched and replaced on, otherwise known as the haystack.
- * @return string The string with the replaced svalues.
- */
- function _deep_replace( $search, $subject ) {
- $subject = (string) $subject;
- $count = 1;
- while ( $count ) {
- $subject = str_replace( $search, '', $subject, $count );
- }
- return $subject;
- }
- /**
- * Escapes data for use in a MySQL query.
- *
- * Usually you should prepare queries using wpdb::prepare().
- * Sometimes, spot-escaping is required or useful. One example
- * is preparing an array for use in an IN clause.
- *
- * NOTE: Since 4.8.3, '%' characters will be replaced with a placeholder string,
- * this prevents certain SQLi attacks from taking place. This change in behaviour
- * may cause issues for code that expects the return value of esc_sql() to be useable
- * for other purposes.
- *
- * @since 2.8.0
- *
- * @global wpdb $wpdb WordPress database abstraction object.
- *
- * @param string|array $data Unescaped data
- * @return string|array Escaped data
- */
- function esc_sql( $data ) {
- global $wpdb;
- return $wpdb->_escape( $data );
- }
- /**
- * Checks and cleans a URL.
- *
- * A number of characters are removed from the URL. If the URL is for displaying
- * (the default behaviour) ampersands are also replaced. The {@see 'clean_url'} filter
- * is applied to the returned cleaned URL.
- *
- * @since 2.8.0
- *
- * @param string $url The URL to be cleaned.
- * @param array $protocols Optional. An array of acceptable protocols.
- * Defaults to return value of wp_allowed_protocols()
- * @param string $_context Private. Use esc_url_raw() for database usage.
- * @return string The cleaned $url after the {@see 'clean_url'} filter is applied.
- */
- function esc_url( $url, $protocols = null, $_context = 'display' ) {
- $original_url = $url;
- if ( '' == $url )
- return $url;
- $url = str_replace( ' ', '%20', $url );
- $url = preg_replace('|[^a-z0-9-~+_.?#=!&;,/:%@$\|*\'()\[\]\\x80-\\xff]|i', '', $url);
- if ( '' === $url ) {
- return $url;
- }
- if ( 0 !== stripos( $url, 'mailto:' ) ) {
- $strip = array('%0d', '%0a', '%0D', '%0A');
- $url = _deep_replace($strip, $url);
- }
- $url = str_replace(';//', '://', $url);
- /* If the URL doesn't appear to contain a scheme, we
- * presume it needs http:// prepended (unless a relative
- * link starting with /, # or ? or a php file).
- */
- if ( strpos($url, ':') === false && ! in_array( $url[0], array( '/', '#', '?' ) ) &&
- ! preg_match('/^[a-z0-9-]+?\.php/i', $url) )
- $url = 'http://' . $url;
- // Replace ampersands and single quotes only when displaying.
- if ( 'display' == $_context ) {
- $url = wp_kses_normalize_entities( $url );
- $url = str_replace( '&', '&', $url );
- $url = str_replace( "'", ''', $url );
- }
- if ( ( false !== strpos( $url, '[' ) ) || ( false !== strpos( $url, ']' ) ) ) {
- $parsed = wp_parse_url( $url );
- $front = '';
- if ( isset( $parsed['scheme'] ) ) {
- $front .= $parsed['scheme'] . '://';
- } elseif ( '/' === $url[0] ) {
- $front .= '//';
- }
- if ( isset( $parsed['user'] ) ) {
- $front .= $parsed['user'];
- }
- if ( isset( $parsed['pass'] ) ) {
- $front .= ':' . $parsed['pass'];
- }
- if ( isset( $parsed['user'] ) || isset( $parsed['pass'] ) ) {
- $front .= '@';
- }
- if ( isset( $parsed['host'] ) ) {
- $front .= $parsed['host'];
- }
- if ( isset( $parsed['port'] ) ) {
- $front .= ':' . $parsed['port'];
- }
- $end_dirty = str_replace( $front, '', $url );
- $end_clean = str_replace( array( '[', ']' ), array( '%5B', '%5D' ), $end_dirty );
- $url = str_replace( $end_dirty, $end_clean, $url );
- }
- if ( '/' === $url[0] ) {
- $good_protocol_url = $url;
- } else {
- if ( ! is_array( $protocols ) )
- $protocols = wp_allowed_protocols();
- $good_protocol_url = wp_kses_bad_protocol( $url, $protocols );
- if ( strtolower( $good_protocol_url ) != strtolower( $url ) )
- return '';
- }
- /**
- * Filters a string cleaned and escaped for output as a URL.
- *
- * @since 2.3.0
- *
- * @param string $good_protocol_url The cleaned URL to be returned.
- * @param string $original_url The URL prior to cleaning.
- * @param string $_context If 'display', replace ampersands and single quotes only.
- */
- return apply_filters( 'clean_url', $good_protocol_url, $original_url, $_context );
- }
- /**
- * Performs esc_url() for database usage.
- *
- * @since 2.8.0
- *
- * @param string $url The URL to be cleaned.
- * @param array $protocols An array of acceptable protocols.
- * @return string The cleaned URL.
- */
- function esc_url_raw( $url, $protocols = null ) {
- return esc_url( $url, $protocols, 'db' );
- }
- /**
- * Convert entities, while preserving already-encoded entities.
- *
- * @link https://secure.php.net/htmlentities Borrowed from the PHP Manual user notes.
- *
- * @since 1.2.2
- *
- * @param string $myHTML The text to be converted.
- * @return string Converted text.
- */
- function htmlentities2( $myHTML ) {
- $translation_table = get_html_translation_table( HTML_ENTITIES, ENT_QUOTES );
- $translation_table[chr(38)] = '&';
- return preg_replace( "/&(?![A-Za-z]{0,4}\w{2,3};|#[0-9]{2,3};)/", "&", strtr($myHTML, $translation_table) );
- }
- /**
- * Escape single quotes, htmlspecialchar " < > &, and fix line endings.
- *
- * Escapes text strings for echoing in JS. It is intended to be used for inline JS
- * (in a tag attribute, for example onclick="..."). Note that the strings have to
- * be in single quotes. The {@see 'js_escape'} filter is also applied here.
- *
- * @since 2.8.0
- *
- * @param string $text The text to be escaped.
- * @return string Escaped text.
- */
- function esc_js( $text ) {
- $safe_text = wp_check_invalid_utf8( $text );
- $safe_text = _wp_specialchars( $safe_text, ENT_COMPAT );
- $safe_text = preg_replace( '/&#(x)?0*(?(1)27|39);?/i', "'", stripslashes( $safe_text ) );
- $safe_text = str_replace( "\r", '', $safe_text );
- $safe_text = str_replace( "\n", '\\n', addslashes( $safe_text ) );
- /**
- * Filters a string cleaned and escaped for output in JavaScript.
- *
- * Text passed to esc_js() is stripped of invalid or special characters,
- * and properly slashed for output.
- *
- * @since 2.0.6
- *
- * @param string $safe_text The text after it has been escaped.
- * @param string $text The text prior to being escaped.
- */
- return apply_filters( 'js_escape', $safe_text, $text );
- }
- /**
- * Escaping for HTML blocks.
- *
- * @since 2.8.0
- *
- * @param string $text
- * @return string
- */
- function esc_html( $text ) {
- $safe_text = wp_check_invalid_utf8( $text );
- $safe_text = _wp_specialchars( $safe_text, ENT_QUOTES );
- /**
- * Filters a string cleaned and escaped for output in HTML.
- *
- * Text passed to esc_html() is stripped of invalid or special characters
- * before output.
- *
- * @since 2.8.0
- *
- * @param string $safe_text The text after it has been escaped.
- * @param string $text The text prior to being escaped.
- */
- return apply_filters( 'esc_html', $safe_text, $text );
- }
- /**
- * Escaping for HTML attributes.
- *
- * @since 2.8.0
- *
- * @param string $text
- * @return string
- */
- function esc_attr( $text ) {
- $safe_text = wp_check_invalid_utf8( $text );
- $safe_text = _wp_specialchars( $safe_text, ENT_QUOTES );
- /**
- * Filters a string cleaned and escaped for output in an HTML attribute.
- *
- * Text passed to esc_attr() is stripped of invalid or special characters
- * before output.
- *
- * @since 2.0.6
- *
- * @param string $safe_text The text after it has been escaped.
- * @param string $text The text prior to being escaped.
- */
- return apply_filters( 'attribute_escape', $safe_text, $text );
- }
- /**
- * Escaping for textarea values.
- *
- * @since 3.1.0
- *
- * @param string $text
- * @return string
- */
- function esc_textarea( $text ) {
- $safe_text = htmlspecialchars( $text, ENT_QUOTES, get_option( 'blog_charset' ) );
- /**
- * Filters a string cleaned and escaped for output in a textarea element.
- *
- * @since 3.1.0
- *
- * @param string $safe_text The text after it has been escaped.
- * @param string $text The text prior to being escaped.
- */
- return apply_filters( 'esc_textarea', $safe_text, $text );
- }
- /**
- * Escape an HTML tag name.
- *
- * @since 2.5.0
- *
- * @param string $tag_name
- * @return string
- */
- function tag_escape( $tag_name ) {
- $safe_tag = strtolower( preg_replace('/[^a-zA-Z0-9_:]/', '', $tag_name) );
- /**
- * Filters a string cleaned and escaped for output as an HTML tag.
- *
- * @since 2.8.0
- *
- * @param string $safe_tag The tag name after it has been escaped.
- * @param string $tag_name The text before it was escaped.
- */
- return apply_filters( 'tag_escape', $safe_tag, $tag_name );
- }
- /**
- * Convert full URL paths to absolute paths.
- *
- * Removes the http or https protocols and the domain. Keeps the path '/' at the
- * beginning, so it isn't a true relative link, but from the web root base.
- *
- * @since 2.1.0
- * @since 4.1.0 Support was added for relative URLs.
- *
- * @param string $link Full URL path.
- * @return string Absolute path.
- */
- function wp_make_link_relative( $link ) {
- return preg_replace( '|^(https?:)?//[^/]+(/?.*)|i', '$2', $link );
- }
- /**
- * Sanitises various option values based on the nature of the option.
- *
- * This is basically a switch statement which will pass $value through a number
- * of functions depending on the $option.
- *
- * @since 2.0.5
- *
- * @global wpdb $wpdb WordPress database abstraction object.
- *
- * @param string $option The name of the option.
- * @param string $value The unsanitised value.
- * @return string Sanitized value.
- */
- function sanitize_option( $option, $value ) {
- global $wpdb;
- $original_value = $value;
- $error = '';
- switch ( $option ) {
- case 'admin_email' :
- case 'new_admin_email' :
- $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value );
- if ( is_wp_error( $value ) ) {
- $error = $value->get_error_message();
- } else {
- $value = sanitize_email( $value );
- if ( ! is_email( $value ) ) {
- $error = __( 'The email address entered did not appear to be a valid email address. Please enter a valid email address.' );
- }
- }
- break;
- case 'thumbnail_size_w':
- case 'thumbnail_size_h':
- case 'medium_size_w':
- case 'medium_size_h':
- case 'medium_large_size_w':
- case 'medium_large_size_h':
- case 'large_size_w':
- case 'large_size_h':
- case 'mailserver_port':
- case 'comment_max_links':
- case 'page_on_front':
- case 'page_for_posts':
- case 'rss_excerpt_length':
- case 'default_category':
- case 'default_email_category':
- case 'default_link_category':
- case 'close_comments_days_old':
- case 'comments_per_page':
- case 'thread_comments_depth':
- case 'users_can_register':
- case 'start_of_week':
- case 'site_icon':
- $value = absint( $value );
- break;
- case 'posts_per_page':
- case 'posts_per_rss':
- $value = (int) $value;
- if ( empty($value) )
- $value = 1;
- if ( $value < -1 )
- $value = abs($value);
- break;
- case 'default_ping_status':
- case 'default_comment_status':
- // Options that if not there have 0 value but need to be something like "closed"
- if ( $value == '0' || $value == '')
- $value = 'closed';
- break;
- case 'blogdescription':
- case 'blogname':
- $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value );
- if ( $value !== $original_value ) {
- $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', wp_encode_emoji( $original_value ) );
- }
- if ( is_wp_error( $value ) ) {
- $error = $value->get_error_message();
- } else {
- $value = esc_html( $value );
- }
- break;
- case 'blog_charset':
- $value = preg_replace('/[^a-zA-Z0-9_-]/', '', $value); // strips slashes
- break;
- case 'blog_public':
- // This is the value if the settings checkbox is not checked on POST. Don't rely on this.
- if ( null === $value )
- $value = 1;
- else
- $value = intval( $value );
- break;
- case 'date_format':
- case 'time_format':
- case 'mailserver_url':
- case 'mailserver_login':
- case 'mailserver_pass':
- case 'upload_path':
- $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value );
- if ( is_wp_error( $value ) ) {
- $error = $value->get_error_message();
- } else {
- $value = strip_tags( $value );
- $value = wp_kses_data( $value );
- }
- break;
- case 'ping_sites':
- $value = explode( "\n", $value );
- $value = array_filter( array_map( 'trim', $value ) );
- $value = array_filter( array_map( 'esc_url_raw', $value ) );
- $value = implode( "\n", $value );
- break;
- case 'gmt_offset':
- $value = preg_replace('/[^0-9:.-]/', '', $value); // strips slashes
- break;
- case 'siteurl':
- $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value );
- if ( is_wp_error( $value ) ) {
- $error = $value->get_error_message();
- } else {
- if ( preg_match( '#http(s?)://(.+)#i', $value ) ) {
- $value = esc_url_raw( $value );
- } else {
- $error = __( 'The WordPress address you entered did not appear to be a valid URL. Please enter a valid URL.' );
- }
- }
- break;
- case 'home':
- $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value );
- if ( is_wp_error( $value ) ) {
- $error = $value->get_error_message();
- } else {
- if ( preg_match( '#http(s?)://(.+)#i', $value ) ) {
- $value = esc_url_raw( $value );
- } else {
- $error = __( 'The Site address you entered did not appear to be a valid URL. Please enter a valid URL.' );
- }
- }
- break;
- case 'WPLANG':
- $allowed = get_available_languages();
- if ( ! is_multisite() && defined( 'WPLANG' ) && '' !== WPLANG && 'en_US' !== WPLANG ) {
- $allowed[] = WPLANG;
- }
- if ( ! in_array( $value, $allowed ) && ! empty( $value ) ) {
- $value = get_option( $option );
- }
- break;
- case 'illegal_names':
- $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value );
- if ( is_wp_error( $value ) ) {
- $error = $value->get_error_message();
- } else {
- if ( ! is_array( $value ) )
- $value = explode( ' ', $value );
- $value = array_values( array_filter( array_map( 'trim', $value ) ) );
- if ( ! $value )
- $value = '';
- }
- break;
- case 'limited_email_domains':
- case 'banned_email_domains':
- $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value );
- if ( is_wp_error( $value ) ) {
- $error = $value->get_error_message();
- } else {
- if ( ! is_array( $value ) )
- $value = explode( "\n", $value );
- $domains = array_values( array_filter( array_map( 'trim', $value ) ) );
- $value = array();
- foreach ( $domains as $domain ) {
- if ( ! preg_match( '/(--|\.\.)/', $domain ) && preg_match( '|^([a-zA-Z0-9-\.])+$|', $domain ) ) {
- $value[] = $domain;
- }
- }
- if ( ! $value )
- $value = '';
- }
- break;
- case 'timezone_string':
- $allowed_zones = timezone_identifiers_list();
- if ( ! in_array( $value, $allowed_zones ) && ! empty( $value ) ) {
- $error = __( 'The timezone you have entered is not valid. Please select a valid timezone.' );
- }
- break;
- case 'permalink_structure':
- case 'category_base':
- case 'tag_base':
- $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value );
- if ( is_wp_error( $value ) ) {
- $error = $value->get_error_message();
- } else {
- $value = esc_url_raw( $value );
- $value = str_replace( 'http://', '', $value );
- }
- if ( 'permalink_structure' === $option && '' !== $value && ! preg_match( '/%[^\/%]+%/', $value ) ) {
- $error = sprintf(
- /* translators: %s: Codex URL */
- __( 'A structure tag is required when using custom permalinks. <a href="%s">Learn more</a>' ),
- __( 'https://codex.wordpress.org/Using_Permalinks#Choosing_your_permalink_structure' )
- );
- }
- break;
- case 'default_role' :
- if ( ! get_role( $value ) && get_role( 'subscriber' ) )
- $value = 'subscriber';
- break;
- case 'moderation_keys':
- case 'blacklist_keys':
- $value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value );
- if ( is_wp_error( $value ) ) {
- $error = $value->get_error_message();
- } else {
- $value = explode( "\n", $value );
- $value = array_filter( array_map( 'trim', $value ) );
- $value = array_unique( $value );
- $value = implode( "\n", $value );
- }
- break;
- }
- if ( ! empty( $error ) ) {
- $value = get_option( $option );
- if ( function_exists( 'add_settings_error' ) ) {
- add_settings_error( $option, "invalid_{$option}", $error );
- }
- }
- /**
- * Filters an option value following sanitization.
- *
- * @since 2.3.0
- * @since 4.3.0 Added the `$original_value` parameter.
- *
- * @param string $value The sanitized option value.
- * @param string $option The option name.
- * @param string $original_value The original value passed to the function.
- */
- return apply_filters( "sanitize_option_{$option}", $value, $option, $original_value );
- }
- /**
- * Maps a function to all non-iterable elements of an array or an object.
- *
- * This is similar to `array_walk_recursive()` but acts upon objects too.
- *
- * @since 4.4.0
- *
- * @param mixed $value The array, object, or scalar.
- * @param callable $callback The function to map onto $value.
- * @return mixed The value with the callback applied to all non-arrays and non-objects inside it.
- */
- function map_deep( $value, $callback ) {
- if ( is_array( $value ) ) {
- foreach ( $value as $index => $item ) {
- $value[ $index ] = map_deep( $item, $callback );
- }
- } elseif ( is_object( $value ) ) {
- $object_vars = get_object_vars( $value );
- foreach ( $object_vars as $property_name => $property_value ) {
- $value->$property_name = map_deep( $property_value, $callback );
- }
- } else {
- $value = call_user_func( $callback, $value );
- }
- return $value;
- }
- /**
- * Parses a string into variables to be stored in an array.
- *
- * Uses {@link https://secure.php.net/parse_str parse_str()} and stripslashes if
- * {@link https://secure.php.net/magic_quotes magic_quotes_gpc} is on.
- *
- * @since 2.2.1
- *
- * @param string $string The string to be parsed.
- * @param array $array Variables will be stored in this array.
- */
- function wp_parse_str( $string, &$array ) {
- parse_str( $string, $array );
- if ( get_magic_quotes_gpc() )
- $array = stripslashes_deep( $array );
- /**
- * Filters the array of variables derived from a parsed string.
- *
- * @since 2.3.0
- *
- * @param array $array The array populated with variables.
- */
- $array = apply_filters( 'wp_parse_str', $array );
- }
- /**
- * Convert lone less than signs.
- *
- * KSES already converts lone greater than signs.
- *
- * @since 2.3.0
- *
- * @param string $text Text to be converted.
- * @return string Converted text.
- */
- function wp_pre_kses_less_than( $text ) {
- return preg_replace_callback('%<[^>]*?((?=<)|>|$)%', 'wp_pre_kses_less_than_callback', $text);
- }
- /**
- * Callback function used by preg_replace.
- *
- * @since 2.3.0
- *
- * @param array $matches Populated by matches to preg_replace.
- * @return string The text returned after esc_html if needed.
- */
- function wp_pre_kses_less_than_callback( $matches ) {
- if ( false === strpos($matches[0], '>') )
- return esc_html($matches[0]);
- return $matches[0];
- }
- /**
- * WordPress implementation of PHP sprintf() with filters.
- *
- * @since 2.5.0
- * @link https://secure.php.net/sprintf
- *
- * @param string $pattern The string which formatted args are inserted.
- * @param mixed $args ,... Arguments to be formatted into the $pattern string.
- * @return string The formatted string.
- */
- function wp_sprintf( $pattern ) {
- $args = func_get_args();
- $len = strlen($pattern);
- $start = 0;
- $result = '';
- $arg_index = 0;
- while ( $len > $start ) {
- // Last character: append and break
- if ( strlen($pattern) - 1 == $start ) {
- $result .= substr($pattern, -1);
- break;
- }
- // Literal %: append and continue
- if ( substr($pattern, $start, 2) == '%%' ) {
- $start += 2;
- $result .= '%';
- continue;
- }
- // Get fragment before next %
- $end = strpos($pattern, '%', $start + 1);
- if ( false === $end )
- $end = $len;
- $fragment = substr($pattern, $start, $end - $start);
- // Fragment has a specifier
- if ( $pattern[$start] == '%' ) {
- // Find numbered arguments or take the next one in order
- if ( preg_match('/^%(\d+)\$/', $fragment, $matches) ) {
- $arg = isset($args[$matches[1]]) ? $args[$matches[1]] : '';
- $fragment = str_replace("%{$matches[1]}$", '%', $fragment);
- } else {
- ++$arg_index;
- $arg = isset($args[$arg_index]) ? $args[$arg_index] : '';
- }
- /**
- * Filters a fragment from the pattern passed to wp_sprintf().
- *
- * If the fragment is unchanged, then sprintf() will be run on the fragment.
- *
- * @since 2.5.0
- *
- * @param string $fragment A fragment from the pattern.
- * @param string $arg The argument.
- */
- $_fragment = apply_filters( 'wp_sprintf', $fragment, $arg );
- if ( $_fragment != $fragment )
- $fragment = $_fragment;
- else
- $fragment = sprintf($fragment, strval($arg) );
- }
- // Append to result and move to next fragment
- $result .= $fragment;
- $start = $end;
- }
- return $result;
- }
- /**
- * Localize list items before the rest of the content.
- *
- * The '%l' must be at the first characters can then contain the rest of the
- * content. The list items will have ', ', ', and', and ' and ' added depending
- * on the amount of list items in the $args parameter.
- *
- * @since 2.5.0
- *
- * @param string $pattern Content containing '%l' at the beginning.
- * @param array $args List items to prepend to the content and replace '%l'.
- * @return string Localized list items and rest of the content.
- */
- function wp_sprintf_l( $pattern, $args ) {
- // Not a match
- if ( substr($pattern, 0, 2) != '%l' )
- return $pattern;
- // Nothing to work with
- if ( empty($args) )
- return '';
- /**
- * Filters the translated delimiters used by wp_sprintf_l().
- * Placeholders (%s) are included to assist translators and then
- * removed before the array of strings reaches the filter.
- *
- * Please note: Ampersands and entities should be avoided here.
- *
- * @since 2.5.0
- *
- * @param array $delimiters An array of translated delimiters.
- */
- $l = apply_filters( 'wp_sprintf_l', array(
- /* translators: used to join items in a list with more than 2 items */
- 'between' => sprintf( __('%s, %s'), '', '' ),
- /* translators: used to join last two items in a list with more than 2 times */
- 'between_last_two' => sprintf( __('%s, and %s'), '', '' ),
- /* translators: used to join items in a list with only 2 items */
- 'between_only_two' => sprintf( __('%s and %s'), '', '' ),
- ) );
- $args = (array) $args;
- $result = array_shift($args);
- if ( count($args) == 1 )
- $result .= $l['between_only_two'] . array_shift($args);
- // Loop when more than two args
- $i = count($args);
- while ( $i ) {
- $arg = array_shift($args);
- $i--;
- if ( 0 == $i )
- $result .= $l['between_last_two'] . $arg;
- else
- $result .= $l['between'] . $arg;
- }
- return $result . substr($pattern, 2);
- }
- /**
- * Safely extracts not more than the first $count characters from html string.
- *
- * UTF-8, tags and entities safe prefix extraction. Entities inside will *NOT*
- * be counted as one character. For example & will be counted as 4, < as
- * 3, etc.
- *
- * @since 2.5.0
- *
- * @param string $str String to get the excerpt from.
- * @param int $count Maximum number of characters to take.
- * @param string $more Optional. What to append if $str needs to be trimmed. Defaults to empty string.
- * @return string The excerpt.
- */
- function wp_html_excerpt( $str, $count, $more = null ) {
- if ( null === $more )
- $more = '';
- $str = wp_strip_all_tags( $str, true );
- $excerpt = mb_substr( $str, 0, $count );
- // remove part of an entity at the end
- $excerpt = preg_replace( '/&[^;\s]{0,6}$/', '', $excerpt );
- if ( $str != $excerpt )
- $excerpt = trim( $excerpt ) . $more;
- return $excerpt;
- }
- /**
- * Add a Base url to relative links in passed content.
- *
- * By default it supports the 'src' and 'href' attributes. However this can be
- * changed via the 3rd param.
- *
- * @since 2.7.0
- *
- * @global string $_links_add_base
- *
- * @param string $content String to search for links in.
- * @param string $base The base URL to prefix to links.
- * @param array $attrs The attributes which should be processed.
- * @return string The processed content.
- */
- function links_add_base_url( $content, $base, $attrs = array('src', 'href') ) {
- global $_links_add_base;
- $_links_add_base = $base;
- $attrs = implode('|', (array)$attrs);
- return preg_replace_callback( "!($attrs)=(['\"])(.+?)\\2!i", '_links_add_base', $content );
- }
- /**
- * Callback to add a base url to relative links in passed content.
- *
- * @since 2.7.0
- * @access private
- *
- * @global string $_links_add_base
- *
- * @param string $m The matched link.
- * @return string The processed link.
- */
- function _links_add_base( $m ) {
- global $_links_add_base;
- //1 = attribute name 2 = quotation mark 3 = URL
- return $m[1] . '=' . $m[2] .
- ( preg_match( '#^(\w{1,20}):#', $m[3], $protocol ) && in_array( $protocol[1], wp_allowed_protocols() ) ?
- $m[3] :
- WP_Http::make_absolute_url( $m[3], $_links_add_base )
- )
- . $m[2];
- }
- /**
- * Adds a Target attribute to all links in passed content.
- *
- * This function by default only applies to `<a>` tags, however this can be
- * modified by the 3rd param.
- *
- * *NOTE:* Any current target attributed will be stripped and replaced.
- *
- * @since 2.7.0
- *
- * @global string $_links_add_target
- *
- * @param string $content String to search for links in.
- * @param string $target The Target to add to the links.
- * @param array $tags An array of tags to apply to.
- * @return string The processed 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 );
- }
- /**
- * Callback to add a target attribute to all links in passed content.
- *
- * @since 2.7.0
- * @access private
- *
- * @global string $_links_add_target
- *
- * @param string $m The matched link.
- * @return string The processed link.
- */
- 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 ) . '">';
- }
- /**
- * Normalize EOL characters and strip duplicate whitespace.
- *
- * @since 2.7.0
- *
- * @param string $str The string to normalize.
- * @return string The normalized string.
- */
- function normalize_whitespace( $str ) {
- $str = trim( $str );
- $str = str_replace( "\r", "\n", $str );
- $str = preg_replace( array( '/\n+/', '/[ \t]+/' ), array( "\n", ' ' ), $str );
- return $str;
- }
- /**
- * Properly strip all HTML tags including script and style
- *
- * This differs from strip_tags() because it removes the contents of
- * the `<script>` and `<style>` tags. E.g. `strip_tags( '<script>something</script>' )`
- * will return 'something'. wp_strip_all_tags will return ''
- *
- * @since 2.9.0
- *
- * @param string $string String containing HTML tags
- * @param bool $remove_breaks Optional. Whether to remove left over line breaks and white space chars
- * @return string The processed string.
- */
- function wp_strip_all_tags($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 );
- }
- /**
- * Sanitizes a string from user input or from the database.
- *
- * - Checks for invalid UTF-8,
- * - Converts single `<` characters to entities
- * - Strips all tags
- * - Removes line breaks, tabs, and extra whitespace
- * - Strips octets
- *
- * @since 2.9.0
- *
- * @see sanitize_textarea_field()
- * @see wp_check_invalid_utf8()
- * @see wp_strip_all_tags()
- *
- * @param string $str String to sanitize.
- * @return string Sanitized string.
- */
- function sanitize_text_field( $str ) {
- $filtered = _sanitize_text_fields( $str, false );
- /**
- * Filters a sanitized text field string.
- *
- * @since 2.9.0
- *
- * @param string $filtered The sanitized string.
- * @param string $str The string prior to being sanitized.
- */
- return apply_filters( 'sanitize_text_field', $filtered, $str );
- }
- /**
- * Sanitizes a multiline string from user input or from the database.
- *
- * The function is like sanitize_text_field(), but preserves
- * new lines (\n) and other whitespace, which are legitimate
- * input in textarea elements.
- *
- * @see sanitize_text_field()
- *
- * @since 4.7.0
- *
- * @param string $str String to sanitize.
- * @return string Sanitized string.
- */
- function sanitize_textarea_field( $str ) {
- $filtered = _sanitize_text_fields( $str, true );
- /**
- * Filters a sanitized textarea field string.
- *
- * @since 4.7.0
- *
- * @param string $filtered The sanitized string.
- * @param string $str The string prior to being sanitized.
- */
- return apply_filters( 'sanitize_textarea_field', $filtered, $str );
- }
- /**
- * Internal helper function to sanitize a string from user input or from the db
- *
- * @since 4.7.0
- * @access private
- *
- * @param string $str String to sanitize.
- * @param bool $keep_newlines optional Whether to keep newlines. Default: false.
- * @return string Sanitized string.
- */
- function _sanitize_text_fields( $str, $keep_newlines = false ) {
- $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, false );
- // Use html entities in a special case to make sure no later
- // newline stripping stage could lead to a functional tag
- $filtered = str_replace("<\n", "<\n", $filtered);
- }
- if ( ! $keep_newlines ) {
- $filtered = preg_replace( '/[\r\n\t ]+/', ' ', $filtered );
- }
- $filtered = trim( $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 $filtered;
- }
- /**
- * i18n friendly version of basename()
- *
- * @since 3.1.0
- *
- * @param string $path A path.
- * @param string $suffix If the filename ends in suffix this will also be cut off.
- * @return string
- */
- function wp_basename( $path, $suffix = '' ) {
- return urldecode( basename( str_replace( array( '%2F', '%5C' ), '/', urlencode( $path ) ), $suffix ) );
- }
- /**
- * Forever eliminate "Wordpress" from the planet (or at least the little bit we can influence).
- *
- * Violating our coding standards for a good function name.
- *
- * @since 3.0.0
- *
- * @staticvar string|false $dblq
- *
- * @param string $text The text to be modified.
- * @return string The modified 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 );
- }
- /**
- * Sanitize a mime type
- *
- * @since 3.1.3
- *
- * @param string $mime_type Mime type
- * @return string Sanitized mime type
- */
- function sanitize_mime_type( $mime_type ) {
- $sani_mime_type = preg_replace( '/[^-+*.a-zA-Z0-9\/]/', '', $mime_type );
- /**
- * Filters a mime type following sanitization.
- *
- * @since 3.1.3
- *
- * @param string $sani_mime_type The sanitized mime type.
- * @param string $mime_type The mime type prior to sanitization.
- */
- return apply_filters( 'sanitize_mime_type', $sani_mime_type, $mime_type );
- }
- /**
- * Sanitize space or carriage return separated URLs that are used to send trackbacks.
- *
- * @since 3.4.0
- *
- * @param string $to_ping Space or carriage return separated URLs
- * @return string URLs starting with the http or https protocol, separated by a carriage return.
- */
- 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 );
- /**
- * Filters a list of trackback URLs following sanitization.
- *
- * The string returned here consists of a space or carriage return-delimited list
- * of trackback URLs.
- *
- * @since 3.4.0
- *
- * @param string $urls_to_ping Sanitized space or carriage return separated URLs.
- * @param string $to_ping Space or carriage return separated URLs before sanitization.
- */
- return apply_filters( 'sanitize_trackback_urls', $urls_to_ping, $to_ping );
- }
- /**
- * Add slashes to a string or array of strings.
- *
- * This should be used when preparing data for core API that expects slashed data.
- * This should not be used to escape data going directly into an SQL query.
- *
- * @since 3.6.0
- *
- * @param string|array $value String or array of strings to slash.
- * @return string|array Slashed $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;
- }
- /**
- * Remove slashes from a string or array of strings.
- *
- * This should be used to remove slashes from data passed to core API that
- * expects data to be unslashed.
- *
- * @since 3.6.0
- *
- * @param string|array $value String or array of strings to unslash.
- * @return string|array Unslashed $value
- */
- function wp_unslash( $value ) {
- return stripslashes_deep( $value );
- }
- /**
- * Extract and return the first URL from passed content.
- *
- * @since 3.6.0
- *
- * @param string $content A string which might contain a URL.
- * @return string|false The found URL.
- */
- 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;
- }
- /**
- * Returns the regexp for common whitespace characters.
- *
- * 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 #22692, that
- * sequence was found to be unreliable due to random inclusion of the A0 byte.
- *
- * @since 4.0.0
- *
- * @staticvar string $spaces
- *
- * @return string The spaces regexp.
- */
- 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;
- }
- /**
- * Print the important emoji-related styles.
- *
- * @since 4.2.0
- *
- * @staticvar bool $printed
- */
- function print_emoji_styles() {
- static $printed = false;
- if ( $printed ) {
- return;
- }
- $printed = true;
- ?>
- <style type="text/css">
- img.wp-smiley,
- img.emoji {
- display: inline !important;
- border: none !important;
- box-shadow: none !important;
- height: 1em !important;
- width: 1em !important;
- margin: 0 .07em !important;
- vertical-align: -0.1em !important;
- background: none !important;
- padding: 0 !important;
- }
- </style>
- <?php
- }
- /**
- * Print the inline Emoji detection script if it is not already printed.
- *
- * @since 4.2.0
- * @staticvar bool $printed
- */
- function print_emoji_detection_script() {
- static $printed = false;
- if ( $printed ) {
- return;
- }
- $printed = true;
- _print_emoji_detection_script();
- }
- /**
- * Prints inline Emoji dection script
- *
- * @ignore
- * @since 4.6.0
- * @access private
- */
- function _print_emoji_detection_script() {
- $settings = array(
- /**
- * Filters the URL where emoji png images are hosted.
- *
- * @since 4.2.0
- *
- * @param string The emoji base URL for png images.
- */
- 'baseUrl' => apply_filters( 'emoji_url', 'https://s.w.org/images/core/emoji/11/72x72/' ),
- /**
- * Filters the extension of the emoji png files.
- *
- * @since 4.2.0
- *
- * @param string The emoji extension for png files. Default .png.
- */
- 'ext' => apply_filters( 'emoji_ext', '.png' ),
- /**
- * Filters the URL where emoji SVG images are hosted.
- *
- * @since 4.6.0
- *
- * @param string The emoji base URL for svg images.
- */
- 'svgUrl' => apply_filters( 'emoji_svg_url', 'https://s.w.org/images/core/emoji/11/svg/' ),
- /**
- * Filters the extension of the emoji SVG files.
- *
- * @since 4.6.0
- *
- * @param string The emoji extension for svg files. Default .svg.
- */
- 'svgExt' => apply_filters( 'emoji_svg_ext', '.svg' ),
- );
- $version = 'ver=' . get_bloginfo( 'version' );
- if ( SCRIPT_DEBUG ) {
- $settings['source'] = array(
- /** This filter is documented in wp-includes/class.wp-scripts.php */
- 'wpemoji' => apply_filters( 'script_loader_src', includes_url( "js/wp-emoji.js?$version" ), 'wpemoji' ),
- /** This filter is documented in wp-includes/class.wp-scripts.php */
- 'twemoji' => apply_filters( 'script_loader_src', includes_url( "js/twemoji.js?$version" ), 'twemoji' ),
- );
- ?>
- <script type="text/javascript">
- window._wpemojiSettings = <?php echo wp_json_encode( $settings ); ?>;
- <?php readfile( ABSPATH . WPINC . "/js/wp-emoji-loader.js" ); ?>
- </script>
- <?php
- } else {
- $settings['source'] = array(
- /** This filter is documented in wp-includes/class.wp-scripts.php */
- 'concatemoji' => apply_filters( 'script_loader_src', includes_url( "js/wp-emoji-release.min.js?$version" ), 'concatemoji' ),
- );
- /*
- * If you're looking at a src version of this file, you'll see an "include"
- * statement below. This is used by the `grunt build` process to directly
- * include a minified version of wp-emoji-loader.js, instead of using the
- * readfile() method from above.
- *
- * If you're looking at a build version of this file, you'll see a string of
- * minified JavaScript. If you need to debug it, please turn on SCRIPT_DEBUG
- * and edit wp-emoji-loader.js directly.
- */
- ?>
- <script type="text/javascript">
- window._wpemojiSettings = <?php echo wp_json_encode( $settings ); ?>;
- !function(a,b,c){function d(a,b){var c=String.fromCharCode;l.clearRect(0,0,k.width,k.height),l.fillText(c.apply(this,a),0,0);var d=k.toDataURL();l.clearRect(0,0,k.width,k.height),l.fillText(c.apply(this,b),0,0);var e=k.toDataURL();return d===e}function e(a){var b;if(!l||!l.fillText)return!1;switch(l.textBaseline="top",l.font="600 32px Arial",a){case"flag":return!(b=d([55356,56826,55356,56819],[55356,56826,8203,55356,56819]))&&(b=d([55356,57332,56128,56423,56128,56418,56128,56421,56128,56430,56128,56423,56128,56447],[55356,57332,8203,56128,56423,8203,56128,56418,8203,56128,56421,8203,56128,56430,8203,56128,56423,8203,56128,56447]),!b);case"emoji":return b=d([55358,56760,9792,65039],[55358,56760,8203,9792,65039]),!b}return!1}function f(a){var c=b.createElement("script");c.src=a,c.defer=c.type="text/javascript",b.getElementsByTagName("head")[0].appendChild(c)}var g,h,i,j,k=b.createElement("canvas"),l=k.getContext&&k.getContext("2d");for(j=Array("flag","emoji"),c.supports={everything:!0,everythingExceptFlag:!0},i=0;i<j.length;i++)c.supports[j[i]]=e(j[i]),c.supports.everything=c.supports.everything&&c.supports[j[i]],"flag"!==j[i]&&(c.supports.everythingExceptFlag=c.supports.everythingExceptFlag&&c.supports[j[i]]);c.supports.everythingExceptFlag=c.supports.everythingExceptFlag&&!c.supports.flag,c.DOMReady=!1,c.readyCallback=function(){c.DOMReady=!0},c.supports.everything||(h=function(){c.readyCallback()},b.addEventListener?(b.addEventListener("DOMContentLoaded",h,!1),a.addEventListener("load",h,!1)):(a.attachEvent("onload",h),b.attachEvent("onreadystatechange",function(){"complete"===b.readyState&&c.readyCallback()})),g=c.source||{},g.concatemoji?f(g.concatemoji):g.wpemoji&&g.twemoji&&(f(g.twemoji),f(g.wpemoji)))}(window,document,window._wpemojiSettings);
- </script>
- <?php
- }
- }
- /**
- * Convert emoji characters to their equivalent HTML entity.
- *
- * This allows us to store emoji in a DB using the utf8 character set.
- *
- * @since 4.2.0
- *
- * @param string $content The content to encode.
- * @return string The encoded content.
- */
- function wp_encode_emoji( $content ) {
- $emoji = _wp_emoji_list( 'partials' );
- foreach ( $emoji as $emojum ) {
- if ( version_compare( phpversion(), '5.4', '<' ) ) {
- $emoji_char = html_entity_decode( $emojum, ENT_COMPAT, 'UTF-8' );
- } else {
- $emoji_char = html_entity_decode( $emojum );
- }
- if ( false !== strpos( $content, $emoji_char ) ) {
- $content = preg_replace( "/$emoji_char/", $emojum, $content );
- }
- }
- return $content;
- }
- /**
- * Convert emoji to a static img element.
- *
- * @since 4.2.0
- *
- * @param string $text The content to encode.
- * @return string The encoded content.
- */
- function wp_staticize_emoji( $text ) {
- if ( false === strpos( $text, '&#x' ) ) {
- if ( ( function_exists( 'mb_check_encoding' ) && mb_check_encoding( $text, 'ASCII' ) ) || ! preg_match( '/[^\x00-\x7F]/', $text ) ) {
- // The text doesn't contain anything that might be emoji, so we can return early.
- return $text;
- } else {
- $encoded_text = wp_encode_emoji( $text );
- if ( $encoded_text === $text ) {
- return $encoded_text;
- }
- $text = $encoded_text;
- }
- }
- $emoji = _wp_emoji_list( 'entities' );
- // Quickly narrow down the list of emoji that might be in the text and need replacing.
- $possible_emoji = array();
- foreach( $emoji as $emojum ) {
- if ( false !== strpos( $text, $emojum ) ) {
- if ( version_compare( phpversion(), '5.4', '<' ) ) {
- $possible_emoji[ $emojum ] = html_entity_decode( $emojum, ENT_COMPAT, 'UTF-8' );
- } else {
- $possible_emoji[ $emojum ] = html_entity_decode( $emojum );
- }
- }
- }
- if ( ! $possible_emoji ) {
- return $text;
- }
- /** This filter is documented in wp-includes/formatting.php */
- $cdn_url = apply_filters( 'emoji_url', 'https://s.w.org/images/core/emoji/11/72x72/' );
- /** This filter is documented in wp-includes/formatting.php */
- $ext = apply_filters( 'emoji_ext', '.png' );
- $output = '';
- /*
- * HTML loop taken from smiley function, which was taken from texturize function.
- * It'll never be consolidated.
- *
- * First, capture the tags as well as in between.
- */
- $textarr = preg_split( '/(<.*>)/U', $text, -1, PREG_SPLIT_DELIM_CAPTURE );
- $stop = count( $textarr );
- // Ignore processing 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] && false !== strpos( $content, '&#x' ) ) {
- foreach ( $possible_emoji as $emojum => $emoji_char ) {
- if ( false === strpos( $content, $emojum ) ) {
- continue;
- }
- $file = str_replace( ';&#x', '-', $emojum );
- $file = str_replace( array( '&#x', ';'), '', $file );
- $entity = sprintf( '<img src="%s" alt="%s" class="wp-smiley" style="height: 1em; max-height: 1em;" />', $cdn_url . $file . $ext, $emoji_char );
- $content = str_replace( $emojum, $entity, $content );
- }
- }
- // Did we exit ignore block.
- if ( '' != $ignore_block_element && '</' . $ignore_block_element . '>' == $content ) {
- $ignore_block_element = '';
- }
- $output .= $content;
- }
- // Finally, remove any stray U+FE0F characters
- $output = str_replace( '️', '', $output );
- return $output;
- }
- /**
- * Convert emoji in emails into static images.
- *
- * @since 4.2.0
- *
- * @param array $mail The email data array.
- * @return array The email data array, with emoji in the message staticized.
- */
- function wp_staticize_emoji_for_email( $mail ) {
- if ( ! isset( $mail['message'] ) ) {
- return $mail;
- }
- /*
- * We can only transform the emoji into images if it's a text/html email.
- * To do that, here's a cut down version of the same process that happens
- * in wp_mail() - get the Content-Type from the headers, if there is one,
- * then pass it through the wp_mail_content_type filter, in case a plugin
- * is handling changing the Content-Type.
- */
- $headers = array();
- if ( isset( $mail['headers'] ) ) {
- if ( is_array( $mail['headers'] ) ) {
- $headers = $mail['headers'];
- } else {
- $headers = explode( "\n", str_replace( "\r\n", "\n", $mail['headers'] ) );
- }
- }
- foreach ( $headers as $header ) {
- if ( strpos($header, ':') === false ) {
- continue;
- }
- // Explode them out.
- list( $name, $content ) = explode( ':', trim( $header ), 2 );
- // Cleanup crew.
- $name = trim( $name );
- $content = trim( $content );
- if ( 'content-type' === strtolower( $name ) ) {
- if ( strpos( $content, ';' ) !== false ) {
- list( $type, $charset ) = explode( ';', $content );
- $content_type = trim( $type );
- } else {
- $content_type = trim( $content );
- }
- break;
- }
- }
- // Set Content-Type if we don't have a content-type from the input headers.
- if ( ! isset( $content_type ) ) {
- $content_type = 'text/plain';
- }
- /** This filter is documented in wp-includes/pluggable.php */
- $content_type = apply_filters( 'wp_mail_content_type', $content_type );
- if ( 'text/html' === $content_type ) {
- $mail['message'] = wp_staticize_emoji( $mail['message'] );
- }
- return $mail;
- }
- /**
- * Returns a arrays of emoji data.
- *
- * These arrays automatically built from the regex in twemoji.js - if they need to be updated,
- * you should update the regex there, then run the `grunt precommit:emoji` job.
- *
- * @since 4.9.0
- * @access private
- *
- * @param string $type Optional. Which array type to return. Accepts 'partials' or 'entities', default 'entities'.
- * @return array An array to match all emoji that WordPress recognises.
- */
- function _wp_emoji_list( $type = 'entities' ) {
- // Do not remove the START/END comments - they're used to find where to insert the arrays.
- // START: emoji arrays
- $entities = 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⭐','⭕','↙','〰','〽','↘','↗','㊗','㊙','↖','↕','↔','ℹ','™','⁉','‼','');
- $partials = array('🀄','🃏','🅰','🅱','🅾','🅿','🆎','🆑','🆒','🆓','🆔','🆕','🆖','🆗','🆘','🆙','🆚','🇦','🇨','🇩','🇪','🇫','🇬','🇮','🇱','🇲','🇴','🇶','🇷','🇸','🇹','🇺','🇼','🇽','🇿','🇧','🇭','🇯','🇳','🇻','🇾','🇰','🇵','🈁','🈂','🈚','🈯','🈲','🈳','🈴','🈵','🈶','🈷','🈸','🈹','🈺','🉐','🉑','🌀','🌁','🌂','🌃','🌄','🌅','🌆','🌇','🌈','🌉','🌊','🌋','🌌','🌍','🌎','🌏','🌐','🌑','🌒','🌓','🌔','🌕','🌖','🌗','🌘','🌙','🌚','🌛','🌜','🌝','🌞','🌟','🌠','🌡','🌤','🌥','🌦','🌧','🌨','🌩','🌪','🌫','🌬','🌭','🌮','🌯','🌰','🌱','🌲','🌳','🌴','🌵','🌶','🌷','🌸','🌹','🌺','🌻','🌼','🌽','🌾','🌿','🍀','🍁','🍂','🍃','🍄','🍅','🍆','🍇','🍈','🍉','🍊','🍋','🍌','🍍','🍎','🍏','🍐','🍑','🍒','🍓','🍔','🍕','🍖','🍗','🍘','🍙','🍚','🍛','🍜','🍝','🍞','🍟','🍠','🍡','🍢','🍣','🍤','🍥','🍦','🍧','🍨','🍩','🍪','🍫','🍬','🍭','🍮','🍯','🍰','🍱','🍲','🍳','🍴','🍵','🍶','🍷','🍸','🍹','🍺','🍻','🍼','🍽','🍾','🍿','🎀','🎁','🎂','🎃','🎄','🎅','🏻','🏼','🏽','🏾','🏿','🎆','🎇','🎈','🎉','🎊','🎋','🎌','🎍','🎎','🎏','🎐','🎑','🎒','🎓','🎖','🎗','🎙','🎚','🎛','🎞','🎟','🎠','🎡','🎢','🎣','🎤','🎥','🎦','🎧','🎨','🎩','🎪','🎫','🎬','🎭','🎮','🎯','🎰','🎱','🎲','🎳','🎴','🎵','🎶','🎷','🎸','🎹','🎺','🎻','🎼','🎽','🎾','🎿','🏀','🏁','🏂','🏃','‍','♀','️','♂','🏄','🏅','🏆','🏇','🏈','🏉','🏊','🏋','🏌','🏍','🏎','🏏','🏐','🏑','🏒','🏓','🏔','🏕','🏖','🏗','🏘','🏙','🏚','🏛','🏜','🏝','🏞','🏟','🏠','🏡','🏢','🏣','🏤','🏥','🏦','🏧','🏨','🏩','🏪','🏫','🏬','🏭','🏮','🏯','🏰','🏳','🏴','☠','󠁧','󠁢','󠁥','󠁮','󠁿','󠁳','󠁣','󠁴','󠁷','󠁬','🏵','🏷','🏸','🏹','🏺','🐀','🐁','🐂','🐃','🐄','🐅','🐆','🐇','🐈','🐉','🐊','🐋','🐌','🐍','🐎','🐏','🐐','🐑','🐒','🐓','🐔','🐕','🐖','🐗','🐘','🐙','🐚','🐛','🐜','🐝','🐞','🐟','🐠','🐡','🐢','🐣','🐤','🐥','🐦','🐧','🐨','🐩','🐪','🐫','🐬','🐭','🐮','🐯','🐰','🐱','🐲','🐳','🐴','🐵','🐶','🐷','🐸','🐹','🐺','🐻','🐼','🐽','🐾','🐿','👀','👁','🗨','👂','👃','👄','👅','👆','👇','👈','👉','👊','👋','👌','👍','👎','👏','👐','👑','👒','👓','👔','👕','👖','👗','👘','👙','👚','👛','👜','👝','👞','👟','👠','👡','👢','👣','👤','👥','👦','👧','👨','💻','💼','🔧','🔬','🚀','🚒','🦰','🦱','🦲','🦳','⚕','⚖','✈','👩','❤','💋','👪','👫','👬','👭','👮','👯','👰','👱','👲','👳','👴','👵','👶','👷','👸','👹','👺','👻','👼','👽','👾','👿','💀','💁','💂','💃','💄','💅','💆','💇','💈','💉','💊','💌','💍','💎','💏','💐','💑','💒','💓','💔','💕','💖','💗','💘','💙','💚','💛','💜','💝','💞','💟','💠','💡','💢','💣','💤','💥','💦','💧','💨','💩','💪','💫','💬','💭','💮','💯','💰','💱','💲','💳','💴','💵','💶','💷','💸','💹','💺','💽','💾','💿','📀','📁','📂','📃','📄','📅','📆','📇','📈','📉','📊','📋','📌','📍','📎','📏','📐','📑','📒','📓','📔','📕','📖','📗','📘','📙','📚','📛','📜','📝','📞','📟','📠','📡','📢','📣','📤','📥','📦','📧','📨','📩','📪','📫','📬','📭','📮','📯','📰','📱','📲','📳','📴','📵','📶','📷','📸','📹','📺','📻','📼','📽','📿','🔀','🔁','🔂','🔃','🔄','🔅','🔆','🔇','🔈','🔉','🔊','🔋','🔌','🔍','🔎','🔏','🔐','🔑','🔒','🔓','🔔','🔕','🔖','🔗','🔘','🔙','🔚','🔛','🔜','🔝','🔞','🔟','🔠','🔡','🔢','🔣','🔤','🔥','🔦','🔨','🔩','🔪','🔫','🔭','🔮','🔯','🔰','🔱','🔲','🔳','🔴','🔵','🔶','🔷','🔸','🔹','🔺','🔻','🔼','🔽','🕉','🕊','🕋','🕌','🕍','🕎','🕐','🕑','🕒','🕓','🕔','🕕','🕖','🕗','🕘','🕙','🕚','🕛','🕜','🕝','🕞','🕟','🕠','🕡','🕢','🕣','🕤','🕥','🕦','🕧','🕯','🕰','🕳','🕴','🕵','🕶','🕷','🕸','🕹','🕺','🖇','🖊','🖋','🖌','🖍','🖐','🖕','🖖','🖤','🖥','🖨','🖱','🖲','🖼','🗂','🗃','🗄','🗑','🗒','🗓','🗜','🗝','🗞','🗡','🗣','🗯','🗳','🗺','🗻','🗼','🗽','🗾','🗿','😀','😁','😂','😃','😄','😅','😆','😇','😈','😉','😊','😋','😌','😍','😎','😏','😐','😑','😒','😓','😔','😕','😖','😗','😘','😙','😚','😛','😜','😝','😞','😟','😠','😡','😢','😣','😤','😥','😦','😧','😨','😩','😪','😫','😬','😭','😮','😯','😰','😱','😲','😳','😴','😵','😶','😷','😸','😹','😺','😻','😼','😽','😾','😿','🙀','🙁','🙂','🙃','🙄','🙅','🙆','🙇','🙈','🙉','🙊','🙋','🙌','🙍','🙎','🙏','🚁','🚂','🚃','🚄','🚅','🚆','🚇','🚈','🚉','🚊','🚋','🚌','🚍','🚎','🚏','🚐','🚑','🚓','🚔','🚕','🚖','🚗','🚘','🚙','🚚','🚛','🚜','🚝','🚞','🚟','🚠','🚡','🚢','🚣','🚤','🚥','🚦','🚧','🚨','🚩','🚪','🚫','🚬','🚭','🚮','🚯','🚰','🚱','🚲','🚳','🚴','🚵','🚶','🚷','🚸','🚹','🚺','🚻','🚼','🚽','🚾','🚿','🛀','🛁','🛂','🛃','🛄','🛅','🛋','🛌','🛍','🛎','🛏','🛐','🛑','🛒','🛠','🛡','🛢','🛣','🛤','🛥','🛩','🛫','🛬','🛰','🛳','🛴','🛵','🛶','🛷','🛸','🛹','🤐','🤑','🤒','🤓','🤔','🤕','🤖','🤗','🤘','🤙','🤚','🤛','🤜','🤝','🤞','🤟','🤠','🤡','🤢','🤣','🤤','🤥','🤦','🤧','🤨','🤩','🤪','🤫','🤬','🤭','🤮','🤯','🤰','🤱','🤲','🤳','🤴','🤵','🤶','🤷','🤸','🤹','🤺','🤼','🤽','🤾','🥀','🥁','🥂','🥃','🥄','🥅','🥇','🥈','🥉','🥊','🥋','🥌','🥍','🥎','🥏','🥐','🥑','🥒','🥓','🥔','🥕','🥖','🥗','🥘','🥙','🥚','🥛','🥜','🥝','🥞','🥟','🥠','🥡','🥢','🥣','🥤','🥥','🥦','🥧','🥨','🥩','🥪','🥫','🥬','🥭','🥮','🥯','🥰','🥳','🥴','🥵','🥶','🥺','🥼','🥽','🥾','🥿','🦀','🦁','🦂','🦃','🦄','🦅','🦆','🦇','🦈','🦉','🦊','🦋','🦌','🦍','🦎','🦏','🦐','🦑','🦒','🦓','🦔','🦕','🦖','🦗','🦘','🦙','🦚','🦛','🦜','🦝','🦞','🦟','🦠','🦡','🦢','🦴','🦵','🦶','🦷','🦸','🦹','🧀','🧁','🧂','🧐','🧑','🧒','🧓','🧔','🧕','🧖','🧗','🧘','🧙','🧚','🧛','🧜','🧝','🧞','🧟','🧠','🧡','🧢','🧣','🧤','🧥','🧦','🧧','🧨','🧩','🧪','🧫','🧬','🧭','🧮','🧯','🧰','🧱','🧲','🧳','🧴','🧵','🧶','🧷','🧸','🧹','🧺','🧻','🧼','🧽','🧾','🧿','‼','⁉','™','ℹ','↔','↕','↖','↗','↘','↙','↩','↪','⃣','⌚','⌛','⌨','⏏','⏩','⏪','⏫','⏬','⏭','⏮','⏯','⏰','⏱','⏲','⏳','⏸','⏹','⏺','Ⓜ','▪','▫','▶','◀','◻','◼','◽','◾','☀','☁','☂','☃','☄','☎','☑','☔','☕','☘','☝','☢','☣','☦','☪','☮','☯','☸','☹','☺','♈','♉','♊','♋','♌','♍','♎','♏','♐','♑','♒','♓','♟','♠','♣','♥','♦','♨','♻','♾','♿','⚒','⚓','⚔','⚗','⚙','⚛','⚜','⚠','⚡','⚪','⚫','⚰','⚱','⚽','⚾','⛄','⛅','⛈','⛎','⛏','⛑','⛓','⛔','⛩','⛪','⛰','⛱','⛲','⛳','⛴','⛵','⛷','⛸','⛹','⛺','⛽','✂','✅','✉','✊','✋','✌','✍','✏','✒','✔','✖','✝','✡','✨','✳','✴','❄','❇','❌','❎','❓','❔','❕','❗','❣','➕','➖','➗','➡','➰','➿','⤴','⤵','⬅','⬆','⬇','⬛','⬜','⭐','⭕','〰','〽','㊗','㊙','');
- // END: emoji arrays
- if ( 'entities' === $type ) {
- return $entities;
- }
- return $partials;
- }
- /**
- * Shorten a URL, to be used as link text.
- *
- * @since 1.2.0
- * @since 4.4.0 Moved to wp-includes/formatting.php from wp-admin/includes/misc.php and added $length param.
- *
- * @param string $url URL to shorten.
- * @param int $length Optional. Maximum length of the shortened URL. Default 35 characters.
- * @return string Shortened URL.
- */
- function url_shorten( $url, $length = 35 ) {
- $stripped = str_replace( array( 'https://', 'http://', 'www.' ), '', $url );
- $short_url = untrailingslashit( $stripped );
- if ( strlen( $short_url ) > $length ) {
- $short_url = substr( $short_url, 0, $length - 3 ) . '…';
- }
- return $short_url;
- }
- /**
- * Sanitizes a hex color.
- *
- * Returns either '', a 3 or 6 digit hex color (with #), or nothing.
- * For sanitizing values without a #, see sanitize_hex_color_no_hash().
- *
- * @since 3.4.0
- *
- * @param string $color
- * @return string|void
- */
- function sanitize_hex_color( $color ) {
- if ( '' === $color ) {
- return '';
- }
- // 3 or 6 hex digits, or the empty string.
- if ( preg_match('|^#([A-Fa-f0-9]{3}){1,2}$|', $color ) ) {
- return $color;
- }
- }
- /**
- * Sanitizes a hex color without a hash. Use sanitize_hex_color() when possible.
- *
- * Saving hex colors without a hash puts the burden of adding the hash on the
- * UI, which makes it difficult to use or upgrade to other color types such as
- * rgba, hsl, rgb, and html color names.
- *
- * Returns either '', a 3 or 6 digit hex color (without a #), or null.
- *
- * @since 3.4.0
- *
- * @param string $color
- * @return string|null
- */
- function sanitize_hex_color_no_hash( $color ) {
- $color = ltrim( $color, '#' );
- if ( '' === $color ) {
- return '';
- }
- return sanitize_hex_color( '#' . $color ) ? $color : null;
- }
- /**
- * Ensures that any hex color is properly hashed.
- * Otherwise, returns value untouched.
- *
- * This method should only be necessary if using sanitize_hex_color_no_hash().
- *
- * @since 3.4.0
- *
- * @param string $color
- * @return string
- */
- function maybe_hash_hex_color( $color ) {
- if ( $unhashed = sanitize_hex_color_no_hash( $color ) ) {
- return '#' . $unhashed;
- }
- return $color;
- }
|