init_class('CI_Parser'); // ------------------------------------------------------------------------ /** * Parser Class * * @package CodeIgniter * @subpackage Libraries * @category Parser * @author Rick Ellis * @link http://www.codeigniter.com/user_guide/libraries/parser.html */ class CI_Parser { var $l_delim = '{'; var $r_delim = '}'; var $object; /** * Parse a template * * Parses pseudo-variables contained in the specified template, * replacing them with the data in the second param * * @access public * @param string * @param array * @param bool * @return string */ function parse($template, $data, $return = FALSE) { $obj =& get_instance(); $template = $obj->load->view($template, $data, TRUE); if ($template == '') { return FALSE; } foreach ($data as $key => $val) { if (is_string($val)) { $template = $this->_parse_single($key, $val, $template); } elseif (is_array($val)) { $template = $this->_parse_pair($key, $val, $template); } } if ($return == FALSE) { $obj->output->final_output = $template; } return $template; } // END set_method() // -------------------------------------------------------------------- /** * Set the left/right variable delimiters * * @access public * @param string * @param string * @return void */ function set_delimiters($l = '{', $r = '}') { $this->l_delim = $l; $this->r_delim = $r; } // END set_method() // -------------------------------------------------------------------- /** * Parse a single key/value * * @access private * @param string * @param string * @param string * @return string */ function _parse_single($key, $val, $string) { return str_replace($this->l_delim.$key.$this->r_delim, $val, $string); } // END set_method() // -------------------------------------------------------------------- /** * Parse a tag pair * * Parses tag pairs: {some_tag} string... {/some_tag} * * @access private * @param string * @param array * @param string * @return string */ function _parse_pair($variable, $data, $string) { if (FALSE === ($match = $this->_match_pair($string, $variable))) { return $string; } $str = ''; foreach ($data as $row) { $temp = $match['1']; foreach ($row as $key => $val) { if ( ! is_array($val)) { $temp = $this->_parse_single($key, $val, $temp); } else { $temp = $this->_parse_pair($key, $val, $temp); } } $str .= $temp; } return str_replace($match['0'], $str, $string); } // END set_method() // -------------------------------------------------------------------- /** * Matches a variable pair * * @access private * @param string * @param string * @return mixed */ function _match_pair($string, $variable) { if ( ! preg_match("|".$this->l_delim . $variable . $this->r_delim."(.+)".$this->l_delim . '/' . $variable . $this->r_delim."|s", $string, $match)) { return FALSE; } return $match; } // END _match_pair() } // END Parser Class ?>