/www/protected/vendors/mustache.php/Mustache.php
PHP | 889 lines | 450 code | 97 blank | 342 comment | 102 complexity | 7b3e986f173470a50322e57cd4c62d2a MD5 | raw file
Possible License(s): Apache-2.0, MIT, LGPL-2.1, BSD-2-Clause, CC-BY-SA-3.0, BSD-3-Clause
- <?php
- /**
- * A Mustache implementation in PHP.
- *
- * {@link http://defunkt.github.com/mustache}
- *
- * Mustache is a framework-agnostic logic-less templating language. It enforces separation of view
- * logic from template files. In fact, it is not even possible to embed logic in the template.
- *
- * This is very, very rad.
- *
- * @author Justin Hileman {@link http://justinhileman.com}
- */
- class Mustache {
- const VERSION = '0.9.0';
- const SPEC_VERSION = '1.1.2';
- /**
- * Should this Mustache throw exceptions when it finds unexpected tags?
- *
- * @see self::_throwsException()
- */
- protected $_throwsExceptions = array(
- MustacheException::UNKNOWN_VARIABLE => false,
- MustacheException::UNCLOSED_SECTION => true,
- MustacheException::UNEXPECTED_CLOSE_SECTION => true,
- MustacheException::UNKNOWN_PARTIAL => false,
- MustacheException::UNKNOWN_PRAGMA => true,
- );
- // Override charset passed to htmlentities() and htmlspecialchars(). Defaults to UTF-8.
- protected $_charset = 'UTF-8';
- /**
- * Pragmas are macro-like directives that, when invoked, change the behavior or
- * syntax of Mustache.
- *
- * They should be considered extremely experimental. Most likely their implementation
- * will change in the future.
- */
- /**
- * The {{%UNESCAPED}} pragma swaps the meaning of the {{normal}} and {{{unescaped}}}
- * Mustache tags. That is, once this pragma is activated the {{normal}} tag will not be
- * escaped while the {{{unescaped}}} tag will be escaped.
- *
- * Pragmas apply only to the current template. Partials, even those included after the
- * {{%UNESCAPED}} call, will need their own pragma declaration.
- *
- * This may be useful in non-HTML Mustache situations.
- */
- const PRAGMA_UNESCAPED = 'UNESCAPED';
- /**
- * Constants used for section and tag RegEx
- */
- const SECTION_TYPES = '\^#\/';
- const TAG_TYPES = '#\^\/=!<>\\{&';
- protected $_otag = '{{';
- protected $_ctag = '}}';
- protected $_tagRegEx;
- protected $_template = '';
- protected $_context = array();
- protected $_partials = array();
- protected $_pragmas = array();
- protected $_pragmasImplemented = array(
- self::PRAGMA_UNESCAPED
- );
- protected $_localPragmas = array();
- /**
- * Mustache class constructor.
- *
- * This method accepts a $template string and a $view object. Optionally, pass an associative
- * array of partials as well.
- *
- * Passing an $options array allows overriding certain Mustache options during instantiation:
- *
- * $options = array(
- * // `charset` -- must be supported by `htmlspecialentities()`. defaults to 'UTF-8'
- * 'charset' => 'ISO-8859-1',
- *
- * // opening and closing delimiters, as an array or a space-separated string
- * 'delimiters' => '<% %>',
- *
- * // an array of pragmas to enable/disable
- * 'pragmas' => array(
- * Mustache::PRAGMA_UNESCAPED => true
- * ),
- * );
- *
- * @access public
- * @param string $template (default: null)
- * @param mixed $view (default: null)
- * @param array $partials (default: null)
- * @param array $options (default: array())
- * @return void
- */
- public function __construct($template = null, $view = null, $partials = null, array $options = null) {
- if ($template !== null) $this->_template = $template;
- if ($partials !== null) $this->_partials = $partials;
- if ($view !== null) $this->_context = array($view);
- if ($options !== null) $this->_setOptions($options);
- }
- /**
- * Helper function for setting options from constructor args.
- *
- * @access protected
- * @param array $options
- * @return void
- */
- protected function _setOptions(array $options) {
- if (isset($options['charset'])) {
- $this->_charset = $options['charset'];
- }
- if (isset($options['delimiters'])) {
- $delims = $options['delimiters'];
- if (!is_array($delims)) {
- $delims = array_map('trim', explode(' ', $delims, 2));
- }
- $this->_otag = $delims[0];
- $this->_ctag = $delims[1];
- }
- if (isset($options['pragmas'])) {
- foreach ($options['pragmas'] as $pragma_name => $pragma_value) {
- if (!in_array($pragma_name, $this->_pragmasImplemented, true)) {
- throw new MustacheException('Unknown pragma: ' . $pragma_name, MustacheException::UNKNOWN_PRAGMA);
- }
- }
- $this->_pragmas = $options['pragmas'];
- }
- }
- /**
- * Mustache class clone method.
- *
- * A cloned Mustache instance should have pragmas, delimeters and root context
- * reset to default values.
- *
- * @access public
- * @return void
- */
- public function __clone() {
- $this->_otag = '{{';
- $this->_ctag = '}}';
- $this->_localPragmas = array();
- if ($keys = array_keys($this->_context)) {
- $last = array_pop($keys);
- if ($this->_context[$last] instanceof Mustache) {
- $this->_context[$last] =& $this;
- }
- }
- }
- /**
- * Render the given template and view object.
- *
- * Defaults to the template and view passed to the class constructor unless a new one is provided.
- * Optionally, pass an associative array of partials as well.
- *
- * @access public
- * @param string $template (default: null)
- * @param mixed $view (default: null)
- * @param array $partials (default: null)
- * @return string Rendered Mustache template.
- */
- public function render($template = null, $view = null, $partials = null) {
- if ($template === null) $template = $this->_template;
- if ($partials !== null) $this->_partials = $partials;
- $otag_orig = $this->_otag;
- $ctag_orig = $this->_ctag;
- if ($view) {
- $this->_context = array($view);
- } else if (empty($this->_context)) {
- $this->_context = array($this);
- }
- $template = $this->_renderPragmas($template);
- $template = $this->_renderTemplate($template, $this->_context);
- $this->_otag = $otag_orig;
- $this->_ctag = $ctag_orig;
- return $template;
- }
- /**
- * Wrap the render() function for string conversion.
- *
- * @access public
- * @return string
- */
- public function __toString() {
- // PHP doesn't like exceptions in __toString.
- // catch any exceptions and convert them to strings.
- try {
- $result = $this->render();
- return $result;
- } catch (Exception $e) {
- return "Error rendering mustache: " . $e->getMessage();
- }
- }
- /**
- * Internal render function, used for recursive calls.
- *
- * @access protected
- * @param string $template
- * @return string Rendered Mustache template.
- */
- protected function _renderTemplate($template) {
- if ($section = $this->_findSection($template)) {
- list($before, $type, $tag_name, $content, $after) = $section;
- $rendered_before = $this->_renderTags($before);
- $rendered_content = '';
- $val = $this->_getVariable($tag_name);
- switch($type) {
- // inverted section
- case '^':
- if (empty($val)) {
- $rendered_content = $this->_renderTemplate($content);
- }
- break;
- // regular section
- case '#':
- // higher order sections
- if ($this->_varIsCallable($val)) {
- $rendered_content = $this->_renderTemplate(call_user_func($val, $content));
- } else if ($this->_varIsIterable($val)) {
- foreach ($val as $local_context) {
- $this->_pushContext($local_context);
- $rendered_content .= $this->_renderTemplate($content);
- $this->_popContext();
- }
- } else if ($val) {
- if (is_array($val) || is_object($val)) {
- $this->_pushContext($val);
- $rendered_content = $this->_renderTemplate($content);
- $this->_popContext();
- } else {
- $rendered_content = $this->_renderTemplate($content);
- }
- }
- break;
- }
- return $rendered_before . $rendered_content . $this->_renderTemplate($after);
- }
- return $this->_renderTags($template);
- }
- /**
- * Prepare a section RegEx string for the given opening/closing tags.
- *
- * @access protected
- * @param string $otag
- * @param string $ctag
- * @return string
- */
- protected function _prepareSectionRegEx($otag, $ctag) {
- return sprintf(
- '/(?:(?<=\\n)[ \\t]*)?%s(?:(?P<type>[%s])(?P<tag_name>.+?)|=(?P<delims>.*?)=)%s\\n?/s',
- preg_quote($otag, '/'),
- self::SECTION_TYPES,
- preg_quote($ctag, '/')
- );
- }
- /**
- * Extract the first section from $template.
- *
- * @access protected
- * @param string $template
- * @return array $before, $type, $tag_name, $content and $after
- */
- protected function _findSection($template) {
- $regEx = $this->_prepareSectionRegEx($this->_otag, $this->_ctag);
- $section_start = null;
- $section_type = null;
- $content_start = null;
- $search_offset = 0;
- $section_stack = array();
- $matches = array();
- while (preg_match($regEx, $template, $matches, PREG_OFFSET_CAPTURE, $search_offset)) {
- if (isset($matches['delims'][0])) {
- list($otag, $ctag) = explode(' ', $matches['delims'][0]);
- $regEx = $this->_prepareSectionRegEx($otag, $ctag);
- $search_offset = $matches[0][1] + strlen($matches[0][0]);
- continue;
- }
- $match = $matches[0][0];
- $offset = $matches[0][1];
- $type = $matches['type'][0];
- $tag_name = trim($matches['tag_name'][0]);
- $search_offset = $offset + strlen($match);
- switch ($type) {
- case '^':
- case '#':
- if (empty($section_stack)) {
- $section_start = $offset;
- $section_type = $type;
- $content_start = $search_offset;
- }
- array_push($section_stack, $tag_name);
- break;
- case '/':
- if (empty($section_stack) || ($tag_name !== array_pop($section_stack))) {
- if ($this->_throwsException(MustacheException::UNEXPECTED_CLOSE_SECTION)) {
- throw new MustacheException('Unexpected close section: ' . $tag_name, MustacheException::UNEXPECTED_CLOSE_SECTION);
- }
- }
- if (empty($section_stack)) {
- // $before, $type, $tag_name, $content, $after
- return array(
- substr($template, 0, $section_start),
- $section_type,
- $tag_name,
- substr($template, $content_start, $offset - $content_start),
- substr($template, $search_offset),
- );
- }
- break;
- }
- }
- if (!empty($section_stack)) {
- if ($this->_throwsException(MustacheException::UNCLOSED_SECTION)) {
- throw new MustacheException('Unclosed section: ' . $section_stack[0], MustacheException::UNCLOSED_SECTION);
- }
- }
- }
- /**
- * Prepare a pragma RegEx for the given opening/closing tags.
- *
- * @access protected
- * @param string $otag
- * @param string $ctag
- * @return string
- */
- protected function _preparePragmaRegEx($otag, $ctag) {
- return sprintf(
- '/%s%%\\s*(?P<pragma_name>[\\w_-]+)(?P<options_string>(?: [\\w]+=[\\w]+)*)\\s*%s\\n?/s',
- preg_quote($otag, '/'),
- preg_quote($ctag, '/')
- );
- }
- /**
- * Initialize pragmas and remove all pragma tags.
- *
- * @access protected
- * @param string $template
- * @return string
- */
- protected function _renderPragmas($template) {
- $this->_localPragmas = $this->_pragmas;
- // no pragmas
- if (strpos($template, $this->_otag . '%') === false) {
- return $template;
- }
- $regEx = $this->_preparePragmaRegEx($this->_otag, $this->_ctag);
- return preg_replace_callback($regEx, array($this, '_renderPragma'), $template);
- }
- /**
- * A preg_replace helper to remove {{%PRAGMA}} tags and enable requested pragma.
- *
- * @access protected
- * @param mixed $matches
- * @return void
- * @throws MustacheException unknown pragma
- */
- protected function _renderPragma($matches) {
- $pragma = $matches[0];
- $pragma_name = $matches['pragma_name'];
- $options_string = $matches['options_string'];
- if (!in_array($pragma_name, $this->_pragmasImplemented)) {
- throw new MustacheException('Unknown pragma: ' . $pragma_name, MustacheException::UNKNOWN_PRAGMA);
- }
- $options = array();
- foreach (explode(' ', trim($options_string)) as $o) {
- if ($p = trim($o)) {
- $p = explode('=', $p);
- $options[$p[0]] = $p[1];
- }
- }
- if (empty($options)) {
- $this->_localPragmas[$pragma_name] = true;
- } else {
- $this->_localPragmas[$pragma_name] = $options;
- }
- return '';
- }
- /**
- * Check whether this Mustache has a specific pragma.
- *
- * @access protected
- * @param string $pragma_name
- * @return bool
- */
- protected function _hasPragma($pragma_name) {
- if (array_key_exists($pragma_name, $this->_localPragmas) && $this->_localPragmas[$pragma_name]) {
- return true;
- } else {
- return false;
- }
- }
- /**
- * Return pragma options, if any.
- *
- * @access protected
- * @param string $pragma_name
- * @return mixed
- * @throws MustacheException Unknown pragma
- */
- protected function _getPragmaOptions($pragma_name) {
- if (!$this->_hasPragma($pragma_name)) {
- throw new MustacheException('Unknown pragma: ' . $pragma_name, MustacheException::UNKNOWN_PRAGMA);
- }
- return (is_array($this->_localPragmas[$pragma_name])) ? $this->_localPragmas[$pragma_name] : array();
- }
- /**
- * Check whether this Mustache instance throws a given exception.
- *
- * Expects exceptions to be MustacheException error codes (i.e. class constants).
- *
- * @access protected
- * @param mixed $exception
- * @return void
- */
- protected function _throwsException($exception) {
- return (isset($this->_throwsExceptions[$exception]) && $this->_throwsExceptions[$exception]);
- }
- /**
- * Prepare a tag RegEx for the given opening/closing tags.
- *
- * @access protected
- * @param string $otag
- * @param string $ctag
- * @return string
- */
- protected function _prepareTagRegEx($otag, $ctag, $first = false) {
- return sprintf(
- '/(?P<leading>(?:%s\\r?\\n)[ \\t]*)?%s(?P<type>[%s]?)(?P<tag_name>.+?)(?:\\2|})?%s(?P<trailing>\\s*(?:\\r?\\n|\\Z))?/s',
- ($first ? '\\A|' : ''),
- preg_quote($otag, '/'),
- self::TAG_TYPES,
- preg_quote($ctag, '/')
- );
- }
- /**
- * Loop through and render individual Mustache tags.
- *
- * @access protected
- * @param string $template
- * @return void
- */
- protected function _renderTags($template) {
- if (strpos($template, $this->_otag) === false) {
- return $template;
- }
- $first = true;
- $this->_tagRegEx = $this->_prepareTagRegEx($this->_otag, $this->_ctag, true);
- $html = '';
- $matches = array();
- while (preg_match($this->_tagRegEx, $template, $matches, PREG_OFFSET_CAPTURE)) {
- $tag = $matches[0][0];
- $offset = $matches[0][1];
- $modifier = $matches['type'][0];
- $tag_name = trim($matches['tag_name'][0]);
- if (isset($matches['leading']) && $matches['leading'][1] > -1) {
- $leading = $matches['leading'][0];
- } else {
- $leading = null;
- }
- if (isset($matches['trailing']) && $matches['trailing'][1] > -1) {
- $trailing = $matches['trailing'][0];
- } else {
- $trailing = null;
- }
- $html .= substr($template, 0, $offset);
- $next_offset = $offset + strlen($tag);
- if ((substr($html, -1) == "\n") && (substr($template, $next_offset, 1) == "\n")) {
- $next_offset++;
- }
- $template = substr($template, $next_offset);
- $html .= $this->_renderTag($modifier, $tag_name, $leading, $trailing);
- if ($first == true) {
- $first = false;
- $this->_tagRegEx = $this->_prepareTagRegEx($this->_otag, $this->_ctag);
- }
- }
- return $html . $template;
- }
- /**
- * Render the named tag, given the specified modifier.
- *
- * Accepted modifiers are `=` (change delimiter), `!` (comment), `>` (partial)
- * `{` or `&` (don't escape output), or none (render escaped output).
- *
- * @access protected
- * @param string $modifier
- * @param string $tag_name
- * @param string $leading Whitespace
- * @param string $trailing Whitespace
- * @throws MustacheException Unmatched section tag encountered.
- * @return string
- */
- protected function _renderTag($modifier, $tag_name, $leading, $trailing) {
- switch ($modifier) {
- case '=':
- return $this->_changeDelimiter($tag_name, $leading, $trailing);
- break;
- case '!':
- return $this->_renderComment($tag_name, $leading, $trailing);
- break;
- case '>':
- case '<':
- return $this->_renderPartial($tag_name, $leading, $trailing);
- break;
- case '{':
- // strip the trailing } ...
- if ($tag_name[(strlen($tag_name) - 1)] == '}') {
- $tag_name = substr($tag_name, 0, -1);
- }
- case '&':
- if ($this->_hasPragma(self::PRAGMA_UNESCAPED)) {
- return $this->_renderEscaped($tag_name, $leading, $trailing);
- } else {
- return $this->_renderUnescaped($tag_name, $leading, $trailing);
- }
- break;
- case '#':
- case '^':
- case '/':
- // remove any leftover section tags
- return $leading . $trailing;
- break;
- default:
- if ($this->_hasPragma(self::PRAGMA_UNESCAPED)) {
- return $this->_renderUnescaped($modifier . $tag_name, $leading, $trailing);
- } else {
- return $this->_renderEscaped($modifier . $tag_name, $leading, $trailing);
- }
- break;
- }
- }
- /**
- * Returns true if any of its args contains the "\r" character.
- *
- * @access protected
- * @param string $str
- * @return boolean
- */
- protected function _stringHasR($str) {
- foreach (func_get_args() as $arg) {
- if (strpos($arg, "\r") !== false) {
- return true;
- }
- }
- return false;
- }
- /**
- * Escape and return the requested tag.
- *
- * @access protected
- * @param string $tag_name
- * @param string $leading Whitespace
- * @param string $trailing Whitespace
- * @return string
- */
- protected function _renderEscaped($tag_name, $leading, $trailing) {
- $rendered = htmlentities($this->_renderUnescaped($tag_name, '', ''), ENT_COMPAT, $this->_charset);
- return $leading . $rendered . $trailing;
- }
- /**
- * Render a comment (i.e. return an empty string).
- *
- * @access protected
- * @param string $tag_name
- * @param string $leading Whitespace
- * @param string $trailing Whitespace
- * @return string
- */
- protected function _renderComment($tag_name, $leading, $trailing) {
- if ($leading !== null && $trailing !== null) {
- if (strpos($leading, "\n") === false) {
- return '';
- }
- return $this->_stringHasR($leading, $trailing) ? "\r\n" : "\n";
- }
- return $leading . $trailing;
- }
- /**
- * Return the requested tag unescaped.
- *
- * @access protected
- * @param string $tag_name
- * @param string $leading Whitespace
- * @param string $trailing Whitespace
- * @return string
- */
- protected function _renderUnescaped($tag_name, $leading, $trailing) {
- $val = $this->_getVariable($tag_name);
- if ($this->_varIsCallable($val)) {
- $val = $this->_renderTemplate(call_user_func($val));
- }
- return $leading . $val . $trailing;
- }
- /**
- * Render the requested partial.
- *
- * @access protected
- * @param string $tag_name
- * @param string $leading Whitespace
- * @param string $trailing Whitespace
- * @return string
- */
- protected function _renderPartial($tag_name, $leading, $trailing) {
- $partial = $this->_getPartial($tag_name);
- if ($leading !== null && $trailing !== null) {
- $whitespace = trim($leading, "\r\n");
- $partial = preg_replace('/(\\r?\\n)(?!$)/s', "\\1" . $whitespace, $partial);
- }
- $view = clone($this);
- if ($leading !== null && $trailing !== null) {
- return $leading . $view->render($partial);
- } else {
- return $leading . $view->render($partial) . $trailing;
- }
- }
- /**
- * Change the Mustache tag delimiter. This method also replaces this object's current
- * tag RegEx with one using the new delimiters.
- *
- * @access protected
- * @param string $tag_name
- * @param string $leading Whitespace
- * @param string $trailing Whitespace
- * @return string
- */
- protected function _changeDelimiter($tag_name, $leading, $trailing) {
- list($otag, $ctag) = explode(' ', $tag_name);
- $this->_otag = $otag;
- $this->_ctag = $ctag;
- $this->_tagRegEx = $this->_prepareTagRegEx($this->_otag, $this->_ctag);
- if ($leading !== null && $trailing !== null) {
- if (strpos($leading, "\n") === false) {
- return '';
- }
- return $this->_stringHasR($leading, $trailing) ? "\r\n" : "\n";
- }
- return $leading . $trailing;
- }
- /**
- * Push a local context onto the stack.
- *
- * @access protected
- * @param array &$local_context
- * @return void
- */
- protected function _pushContext(&$local_context) {
- $new = array();
- $new[] =& $local_context;
- foreach (array_keys($this->_context) as $key) {
- $new[] =& $this->_context[$key];
- }
- $this->_context = $new;
- }
- /**
- * Remove the latest context from the stack.
- *
- * @access protected
- * @return void
- */
- protected function _popContext() {
- $new = array();
- $keys = array_keys($this->_context);
- array_shift($keys);
- foreach ($keys as $key) {
- $new[] =& $this->_context[$key];
- }
- $this->_context = $new;
- }
- /**
- * Get a variable from the context array.
- *
- * If the view is an array, returns the value with array key $tag_name.
- * If the view is an object, this will check for a public member variable
- * named $tag_name. If none is available, this method will execute and return
- * any class method named $tag_name. Failing all of the above, this method will
- * return an empty string.
- *
- * @access protected
- * @param string $tag_name
- * @throws MustacheException Unknown variable name.
- * @return string
- */
- protected function _getVariable($tag_name) {
- if ($tag_name === '.') {
- return $this->_context[0];
- } else if (strpos($tag_name, '.') !== false) {
- $chunks = explode('.', $tag_name);
- $first = array_shift($chunks);
- $ret = $this->_findVariableInContext($first, $this->_context);
- while ($next = array_shift($chunks)) {
- // Slice off a chunk of context for dot notation traversal.
- $c = array($ret);
- $ret = $this->_findVariableInContext($next, $c);
- }
- return $ret;
- } else {
- return $this->_findVariableInContext($tag_name, $this->_context);
- }
- }
- /**
- * Get a variable from the context array. Internal helper used by getVariable() to abstract
- * variable traversal for dot notation.
- *
- * @access protected
- * @param string $tag_name
- * @param array $context
- * @throws MustacheException Unknown variable name.
- * @return string
- */
- protected function _findVariableInContext($tag_name, $context) {
- foreach ($context as $view) {
- if (is_object($view)) {
- if (method_exists($view, $tag_name)) {
- return $view->$tag_name();
- } else if (isset($view->$tag_name)) {
- return $view->$tag_name;
- }
- } else if (is_array($view) && array_key_exists($tag_name, $view)) {
- return $view[$tag_name];
- }
- }
- if ($this->_throwsException(MustacheException::UNKNOWN_VARIABLE)) {
- throw new MustacheException("Unknown variable: " . $tag_name, MustacheException::UNKNOWN_VARIABLE);
- } else {
- return '';
- }
- }
- /**
- * Retrieve the partial corresponding to the requested tag name.
- *
- * Silently fails (i.e. returns '') when the requested partial is not found.
- *
- * @access protected
- * @param string $tag_name
- * @throws MustacheException Unknown partial name.
- * @return string
- */
- protected function _getPartial($tag_name) {
- if ((is_array($this->_partials) || $this->_partials instanceof ArrayAccess) && isset($this->_partials[$tag_name])) {
- return $this->_partials[$tag_name];
- }
- if ($this->_throwsException(MustacheException::UNKNOWN_PARTIAL)) {
- throw new MustacheException('Unknown partial: ' . $tag_name, MustacheException::UNKNOWN_PARTIAL);
- } else {
- return '';
- }
- }
- /**
- * Check whether the given $var should be iterated (i.e. in a section context).
- *
- * @access protected
- * @param mixed $var
- * @return bool
- */
- protected function _varIsIterable($var) {
- return $var instanceof Traversable || (is_array($var) && !array_diff_key($var, array_keys(array_keys($var))));
- }
- /**
- * Higher order sections helper: tests whether the section $var is a valid callback.
- *
- * In Mustache.php, a variable is considered 'callable' if the variable is:
- *
- * 1. an anonymous function.
- * 2. an object and the name of a public function, i.e. `array($SomeObject, 'methodName')`
- * 3. a class name and the name of a public static function, i.e. `array('SomeClass', 'methodName')`
- *
- * @access protected
- * @param mixed $var
- * @return bool
- */
- protected function _varIsCallable($var) {
- return !is_string($var) && is_callable($var);
- }
- }
- /**
- * MustacheException class.
- *
- * @extends Exception
- */
- class MustacheException extends Exception {
- // An UNKNOWN_VARIABLE exception is thrown when a {{variable}} is not found
- // in the current context.
- const UNKNOWN_VARIABLE = 0;
- // An UNCLOSED_SECTION exception is thrown when a {{#section}} is not closed.
- const UNCLOSED_SECTION = 1;
- // An UNEXPECTED_CLOSE_SECTION exception is thrown when {{/section}} appears
- // without a corresponding {{#section}} or {{^section}}.
- const UNEXPECTED_CLOSE_SECTION = 2;
- // An UNKNOWN_PARTIAL exception is thrown whenever a {{>partial}} tag appears
- // with no associated partial.
- const UNKNOWN_PARTIAL = 3;
- // An UNKNOWN_PRAGMA exception is thrown whenever a {{%PRAGMA}} tag appears
- // which can't be handled by this Mustache instance.
- const UNKNOWN_PRAGMA = 4;
- }