this class is used for custom tag parsing in some text or data you might have. Parses the tags and cals the function for it ..
also supports attributes
use .. $text=" data data data ";
By : armandoxxx
<?php
/** * My Tag class * @author Armando Ota <armando.ota@rs-pi.com> * @version 1.1 * @since 28.04.2003, 08:33:49 * @copyright GPL - jada jada jada **/
define("MYTAG_PREFIX",""); //prefixes you may use define("MYTAG_CONVERT_TO_BR","1"); //converts CR to HTML <BR /> define("MYTAG_SEPARATOR",""); //defines separator
class myTag {
var $tag_stack = null; var $basic_string = "";
var $CONVERT_TO_BR = 0; /** * constructor * @return * @version 1.1 * @author Armando Ota <armando.ota@rs-pi.com> * @since 28.04.2003, 08:43:02 **/ function myTag(){ $this->CONVERT_TO_BR=MYTAG_CONVERT_TO_BR; }
/** * definition functions * INPUT PARAMS ARE NECESSERY !!! * @param Array $attr=null array of attributes you can use with tag * @param String $data="" data you want do parse * @return String * @version 1.1 * @author Armando Ota <armando.ota@rs-pi.com> * @since 28.04.2003, 16:37:34 **/
/** * creates list in content * @param array $attr=null attributes array * @param string $data="" input data * @return string * @version 1.0 * @author Armando Ota <armando.ota@rs-pi.com> * @since 05.05.2003, 08:09:06 **/ function list($attr=null,$data=""){ $output=" <table cellspacing=\"0\" cellpadding=\"0\" border=\"0\"> ".$data." </table> "; return $output; }
/** * creates list item in content * @param array $attr=null attributes array * @param string $data="" input data * @return string * @version 1.0 * @author Armando Ota <armando.ota@rs-pi.com> * @since 05.05.2003, 08:09:06 **/ function listItem($attr=null,$data=""){ $output=" <tr> <td><img src=\"dsg/list_bullet.gif\" border=\"0\" alt=\"\" /></td><td>".$data."</td> </tr> "; return $output; }
/** * parser for input string * @param string $str string for parsing * @return string * @version 1.1 * @author Armando Ota <armando.ota@rs-pi.com> * @since 28.04.2003, 08:43:57 **/ function parseText($str=""){ if($str){ $str=" ".$str; $start_tag_lok=strpos($str,"<".MYTAG_PREFIX.MYTAG_SEPARATOR); while($start_tag_lok){
$def_tag_len=strlen("<".MYTAG_PREFIX.MYTAG_SEPARATOR); //length of start string tag $start_tag_lok_end=strpos($str,">",$start_tag_lok+1); // find the closing gap for start tag
//find tag string $tag_string=substr($str,$start_tag_lok+$def_tag_len,$start_tag_lok_end-($start_tag_lok+$def_tag_len));
// posibility that tag has been written like <tag='something'> $start_attr_eq=strpos($tag_string,"="); //find occuarance of '=' sign $start_attr_space=strpos($tag_string," "); //find occuarance of ' '(whitespace) sign if(!$start_attr_space) $start_attr_space=strlen($tag_string);
if($start_attr_eq<$start_attr_space){ //if tag conatins equal sign $tag_name=substr($tag_string,0,$start_attr_eq); $attr_str=trim(substr($tag_string,0,strlen($tag_string)+1)); //puts it into array $attr_arr=explode(" ",$attr_str); for($i=0;$i<sizeof($attr_arr);$i++){ $sec_attr_arr=explode("=",$attr_arr[$i]); //attr_stack now has attribute name as key and its value $attr_stack[$sec_attr_arr[0]]=trim(substr($sec_attr_arr[1],1,strlen($sec_attr_arr[1])-2)); } } else { //defines where tag name ends if($start_attr_space<$start_attr_eq){ $start_attr_pos=$start_attr_space; } else { $start_attr_pos=$start_attr_eq; } //pick tagname $tag_name=substr($tag_string,0,$start_attr_pos); //gets attributes string $attr_str=trim(substr($tag_string,$start_attr_pos+1,strlen($tag_string)-$start_attr_pos+1)); //puts it into array $attr_arr=explode(" ",$attr_str); for($i=0;$i<sizeof($attr_arr);$i++){ $sec_attr_arr=explode("=",$attr_arr[$i]); //attr_stack now has attribute name as key and its value stored $attr_stack[$sec_attr_arr[0]]=trim(substr($sec_attr_arr[1],1,strlen($sec_attr_arr[1])-2)); } }
//data between start and end tags $end_tag_lok=strpos($str,"</".MYTAG_PREFIX.MYTAG_SEPARATOR.$tag_name.">"); if($end_tag_lok){ $tag_data=substr($str,$start_tag_lok_end+1,$end_tag_lok-$start_tag_lok_end-1); $end_tag_len=strlen("</".MYTAG_PREFIX.MYTAG_SEPARATOR.$tag_name.">"); //builds the whole string (start and end tag) for replacement $whole_tag_string=substr($str,$start_tag_lok,($end_tag_lok+$end_tag_len)-$start_tag_lok); if(method_exists($this,$tag_name)){ //checks if tag method exists and calls it $str=str_replace($whole_tag_string,call_user_func(array("myTag",$tag_name),$attr_stack,$this->parseText($tag_data)),$str); } else { $str=str_replace($whole_tag_string,$this->parseText($tag_data),$str); //if tag method does not exists then we replace tag with text } } $start_tag_lok=strpos($str,"<".MYTAG_PREFIX.MYTAG_SEPARATOR,$start_tag_lok+1); } if($this->CONVERT_TO_BR){ $str=str_replace(chr(10),"<br />",$str); } } return $str; } }
?>
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