mirror of
https://github.com/processwire/processwire.git
synced 2025-08-09 16:26:59 +02:00
Move implementation for wirePopulateStringTags() function into WireTextTools class. Add new WireData() shortcut function for consistency with existing WireArray() and PageArray() functions.
This commit is contained in:
Ryan Cramer
@@ -444,78 +444,7 @@ function wireMail($to = '', $from = '', $subject = '', $body = '', $options = ar
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*
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*
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*/
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*/
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function wirePopulateStringTags($str, $vars, array $options = array()) {
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function wirePopulateStringTags($str, $vars, array $options = array()) {
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return wire('sanitizer')->getTextTools()->populatePlaceholders($str, $vars, $options);
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$defaults = array(
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// opening tag (required)
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'tagOpen' => '{',
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// closing tag (optional)
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'tagClose' => '}',
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// if replacement value contains tags, populate those too?
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'recursive' => false,
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// if a tag value resolves to a NULL, remove it? If false, tag will be left in tact.
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'removeNullTags' => true,
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// entity encode values pulled from $vars?
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'entityEncode' => false,
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// entity decode values pulled from $vars?
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'entityDecode' => false,
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);
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$options = array_merge($defaults, $options);
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// check if this string even needs anything populated
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if(strpos($str, $options['tagOpen']) === false) return $str;
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if(strlen($options['tagClose']) && strpos($str, $options['tagClose']) === false) return $str;
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// find all tags
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$tagOpen = preg_quote($options['tagOpen']);
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$tagClose = preg_quote($options['tagClose']);
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$numFound = preg_match_all('/' . $tagOpen . '([-_.|a-zA-Z0-9]+)' . $tagClose . '/', $str, $matches);
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if(!$numFound) return $str;
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$replacements = array();
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// create a list of replacements by finding replacement values in $vars
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foreach($matches[1] as $key => $fieldName) {
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$tag = $matches[0][$key];
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if(isset($replacements[$tag])) continue; // if already found, don't continue
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$fieldValue = null;
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if(is_object($vars)) {
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if($vars instanceof Page) {
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$fieldValue = $vars->getMarkup($fieldName);
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} else if($vars instanceof WireData) {
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$fieldValue = $vars->get($fieldName);
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} else {
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$fieldValue = $vars->$fieldName;
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}
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} else if(is_array($vars)) {
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$fieldValue = isset($vars[$fieldName]) ? $vars[$fieldName] : null;
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}
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if($options['entityEncode']) $fieldValue = htmlentities($fieldValue, ENT_QUOTES, 'UTF-8', false);
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if($options['entityDecode']) $fieldValue = html_entity_decode($fieldValue, ENT_QUOTES, 'UTF-8');
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$replacements[$tag] = $fieldValue;
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}
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// replace the tags
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foreach($replacements as $tag => $value) {
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// populate tags recursively, if asked to do so
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if($options['recursive'] && strpos($value, $options['tagOpen'])) {
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$opt = array_merge($options, array('recursive' => false)); // don't go recursive beyond 1 level
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$value = wirePopulateStringTags($value, $vars, $opt);
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}
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// replace tags with replacement values
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if($value !== null || $options['removeNullTags']) {
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$str = str_replace($tag, (string) $value, $str);
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}
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}
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return $str;
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}
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}
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@@ -1223,6 +1152,29 @@ function WireArray($items = array()) {
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return WireArray::newInstance($items);
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return WireArray::newInstance($items);
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}
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}
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/**
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* Create a new WireData instance and optionally add given associative array of data to it
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*
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* ~~~~~
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* $data = WireData([ 'hello' => 'world', 'foo' => 'bar' ]);
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* ~~~~~
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*
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* @param array|\Traversable $data Can be an associative array or Traversable object of data to set, or omit if not needed
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* @return WireData
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* @since 3.0.126
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*
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*/
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function WireData($data = array()) {
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$wireData = new WireData();
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if(is_array($data)) {
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if(!empty($data)) $wireData->setArray($data);
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} else if($data instanceof \Traversable) {
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foreach($data as $k => $v) $wireData->set($k, $v);
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}
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$wireData->resetTrackChanges(true);
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return $wireData;
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}
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/**
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/**
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* Create new PageArray, add given $items (pages) to it, and return it
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* Create new PageArray, add given $items (pages) to it, and return it
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*
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*
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@@ -1243,7 +1195,9 @@ function WireArray($items = array()) {
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*
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*
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*/
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*/
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function PageArray($items = array()) {
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function PageArray($items = array()) {
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return PageArray::newInstance($items);
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/** @var PageArray $pa */
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$pa = PageArray::newInstance($items);
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return $pa;
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}
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}
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@@ -603,5 +603,157 @@ class WireTextTools extends Wire {
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}
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}
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return explode(' ', $s);
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return explode(' ', $s);
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}
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}
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/**
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* Find and return all {placeholder} tags found in given string
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*
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* @param string $str String that might contain field {tags}
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* @param array $options
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* - `has` (bool): Specify true to only return true or false if it has tags (default=false).
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* - `tagOpen` (string): The required opening tag character(s), default is '{'
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* - `tagClose` (string): The required closing tag character(s), default is '}'
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* @return array|bool
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* @since 3.0.126
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*
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*/
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public function findPlaceholders($str, array $options = array()) {
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$defaults = array(
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'has' => false,
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'tagOpen' => '{',
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'tagClose' => '}',
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);
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$options = array_merge($defaults, $options);
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$tags = array();
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$pos1 = strpos($str, $options['tagOpen']);
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if($pos1 === false) return $options['has'] ? false : $tags;
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if(strlen($options['tagClose'])) {
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$pos2 = strpos($str, $options['tagClose']);
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if($pos2 === false) return $options['has'] ? false : $tags;
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}
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$regex = '/' . preg_quote($options['tagOpen']) . '([-_.|a-zA-Z0-9]+)' . preg_quote($options['tagClose']) . '/';
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if($options['has']) return (bool) preg_match($regex, $str);
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if(!preg_match_all($regex, $str, $matches)) return $tags;
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foreach($matches[0] as $key => $tag) {
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$name = $matches[1][$key];
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$tags[$name] = $tag;
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}
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return $tags;
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}
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/**
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* Does the string have any {placeholder} tags in it?
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*
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* @param string $str
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* @param array $options
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* - `tagOpen` (string): The required opening tag character(s), default is '{'
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* - `tagClose` (string): The required closing tag character(s), default is '}'
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* @return bool
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* @since 3.0.126
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*
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*/
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public function hasPlaceholders($str, array $options = array()) {
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$options['has'] = true;
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return $this->findPlaceholders($str, $options);
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}
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/**
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* Given a string ($str) and values ($vars), populate placeholder “{tags}” in the string with the values
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*
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* - The `$vars` should be an associative array of `[ 'tag' => 'value' ]`.
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* - The `$vars` may also be an object, in which case values will be pulled as properties of the object.
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*
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* By default, tags are specified in the format: {first_name} where first_name is the name of the
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* variable to pull from $vars, `{` is the opening tag character, and `}` is the closing tag char.
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*
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* The tag parser can also handle subfields and OR tags, if `$vars` is an object that supports that.
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* For instance `{products.title}` is a subfield, and `{first_name|title|name}` is an OR tag.
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*
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* ~~~~~
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* $vars = [ 'foo' => 'FOO!', 'bar' => 'BAR!' ];
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* $str = 'This is a test: {foo}, and this is another test: {bar}';
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* echo $sanitizer->getTextTools()->populatePlaceholders($str, $vars);
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* // outputs: This is a test: FOO!, and this is another test: BAR!
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* ~~~~~
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*
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* @param string $str The string to operate on (where the {tags} might be found)
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* @param WireData|object|array $vars Object or associative array to pull replacement values from.
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* @param array $options Array of optional changes to default behavior, including:
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* - `tagOpen` (string): The required opening tag character(s), default is '{'
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* - `tagClose` (string): The optional closing tag character(s), default is '}'
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* - `recursive` (bool): If replacement value contains tags, populate those too? (default=false)
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* - `removeNullTags` (bool): If a tag resolves to a NULL, remove it? If false, tag will remain. (default=true)
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* - `entityEncode` (bool): Entity encode the values pulled from $vars? (default=false)
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* - `entityDecode` (bool): Entity decode the values pulled from $vars? (default=false)
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* - `allowMarkup` (bool): Allow markup to appear in populated variables? (default=true)
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* @return string String with tags populated.
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* @since 3.0.126 Use wirePopulateStringTags() function for older versions
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*
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*/
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public function populatePlaceholders($str, $vars, array $options = array()) {
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$defaults = array(
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'tagOpen' => '{', // opening tag (required)
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'tagClose' => '}', // closing tag (optional)
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'recursive' => false, // if replacement value contains tags, populate those too?
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'removeNullTags' => true, // if a tag value resolves to a NULL, remove it? If false, tag will be left in tact.
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'entityEncode' => false, // entity encode values pulled from $vars?
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'entityDecode' => false, // entity decode values pulled from $vars?
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'allowMarkup' => true, // allow markup to appear in populated variables?
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);
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$options = array_merge($defaults, $options);
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$optionsNoRecursive = $options['recursive'] ? array_merge($options, array('recursive' => false)) : $options;
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$replacements = array();
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$tags = $this->findPlaceholders($str, $options);
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// create a list of replacements by finding replacement values in $vars
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foreach($tags as $fieldName => $tag) {
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if(isset($replacements[$tag])) continue; // if already found, do not do it again
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$fieldValue = null;
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if(is_object($vars)) {
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if($vars instanceof Page) {
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$fieldValue = $options['allowMarkup'] ? $vars->getMarkup($fieldName) : $vars->getText($fieldName);
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} else if($vars instanceof WireData) {
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$fieldValue = $vars->get($fieldName);
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} else {
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$fieldValue = $vars->$fieldName;
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}
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} else if(is_array($vars)) {
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$fieldValue = isset($vars[$fieldName]) ? $vars[$fieldName] : null;
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}
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// if value resolves to null and we are not removing null tags, then do not add to replacements
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if($fieldValue === null && !$options['removeNullTags']) continue;
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$fieldValue = (string) $fieldValue;
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if(!$options['allowMarkup'] && strpos($fieldValue, '<') !== false) $fieldValue = strip_tags($fieldValue);
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if($options['entityEncode']) $fieldValue = htmlentities($fieldValue, ENT_QUOTES, 'UTF-8', false);
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if($options['entityDecode']) $fieldValue = html_entity_decode($fieldValue, ENT_QUOTES, 'UTF-8');
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if($options['recursive'] && strpos($fieldValue, $options['tagOpen']) !== false) {
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$fieldValue = $this->populatePlaceholders($fieldValue, $vars, $optionsNoRecursive);
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}
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$replacements[$tag] = $fieldValue;
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}
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// replace the tags
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if(count($tags)) {
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$str = str_replace(array_keys($replacements), array_values($replacements), $str);
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}
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return $str;
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}
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}
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}
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