論壇標籤bbcode的範例

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論壇標籤bbcode的範例

房東：新手

發表時間：2007-01-19

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現在非常多程式用到 bbcode

現在給大家參考一下

bbcode_class.php
php程式碼:

function begtoend($htmltag){
return preg_replace(\'/<($A-Za-z]+)>/\',\'\',$htmltag);
}
function replace_pcre_array($text,$array){
$pattern = array_keys($array);
$replace = array_values($array);
$text = preg_replace($pattern,$replace,$text);
return $text;
}
class bbcode{
var $tags;
var $settings;
function bbcode(){
$this->tags = array();
$this->settings = array(\'enced\'=>true);
}
function get_data($name,$cfa = \'\'){
if(!array_key_exists($name,$this->tags)) return \'\';
$data = $this->tags$$name];
if($cfa) $sbc = $cfa; else $sbc = $name;
if(!is_array($data)){
$data = preg_replace(\'/^ALIAS(.+)$/\',\'$1\',$data);
return $this->get_data($data,$sbc);
}else{
$data$\'Name\'] = $sbc;
return $data;
}
}
function change_setting($name,$value){
$this->settings$$name] = $value;
}
function add_alias($name,$aliasof){
if(!array_key_exists($aliasof,$this->tags) or array_key_exists($name,$this->tags)) return false;
$this->tags$$name] = \'ALIAS\'.$aliasof;
return true;
}
function onparam($param,$regexarray){
$param = replace_pcre_array($param,$regexarray);
if(!$this->settings$\'enced\']){
$param = htmlentities($param);
}
return $param;
}
function export_definition(){
return serialize($this->tags);
}
function import_definiton($definition,$mode = \'append\'){
switch($mode){
case \'append\':
$array = unserialize($definition);
$this->tags = $array + $this->tags;
break;
case \'prepend\':
$array = unserialize($definition);
$this->tags = $this->tags + $array;
break;
case \'overwrite\':
$this->tags = unserialize($definition);
break;
default:
return false;
}
return true;
}
function add_tag($params){
if(!is_array($params)) return \'Paramater array not an array.\';
if(!array_key_exists(\'Name\',$params) or empty($params$\'Name\'])) return \'Name parameter is required.\';
if(preg_match(\'/$^A-Za-z]/\',$params$\'Name\'])) return \'Name can only contain letters.\';
if(!array_key_exists(\'HasParam\',$params)) $params$\'HasParam\'] = false;
if(!array_key_exists(\'HtmlBegin\',$params)) return \'HtmlBegin paremater not specified!\';
if(!array_key_exists(\'HtmlEnd\',$params)){
if(preg_match(\'/^(<$A-Za-z]>)+$/\',$params$\'HtmlBegin\'])){
$params$\'HtmlEnd\'] = begtoend($params$\'HtmlBegin\']);
}else{
return \'You didn\'t specify the HtmlEnd parameter, and your HtmlBegin parameter is too complex to change to an HtmlEnd parameter. Please specify HtmlEnd.\';
}
}
if(!array_key_exists(\'ParamRegexReplace\',$params)) $params$\'ParamRegexReplace\'] = array();
if(!array_key_exists(\'ParamRegex\',$params)) $params$\'ParamRegex\'] = \'$^]]+\';
if(!array_key_exists(\'HasEnd\',$params)) $params$\'HasEnd\'] = true;
if(array_key_exists($params$\'Name\'],$this->tags)) return \'The name you specified is already in use.\';
$this->tags$$params$\'Name\']] = $params;
return \'\';
}
function parse_bbcode($text){
foreach($this->tags as $tagname => $tagdata){
if(!is_array($tagdata)) $tagdata = $this->get_data($tagname);
$startfind = \"/${$tagdata$\'Name\']}\";
if($tagdata$\'HasParam\']){
$startfind.= \'=(\'.$tagdata$\'ParamRegex\'].\')\';
}
$startfind.= \']/\';
if($tagdata$\'HasEnd\']){
$endfind = \"$/{$tagdata$\'Name\']}]\";
$starttags = preg_match_all($startfind,$text,$ignore);
$endtags = substr_count($text,$endfind);
if($endtags < $starttags){
$text.= str_repeat($endfind,$starttags - $endtags);
}
$text = str_replace($endfind,$tagdata$\'HtmlEnd\'],$text);
}
$replace = str_replace(array(\'%%P%%\',\'%%p%%\'),\'\'.$this->onparam(\'$1\',$tagdata$\'ParamRegexReplace\']).\'\',\'\'\'.$tagdata$\'HtmlBegin\'].\'\'\');
$text = preg_replace($startfind.\'e\',$replace,$text);
}
return $text;
}
}
?>

index.php

require_once(\'bbcode.php\');
$bbcode = new bbcode();
$bbcode->add_tag(array(\'Name\'=>\'b\',\'HtmlBegin\'=>\'\',\'HtmlEnd\'=>\'\'));
$bbcode->add_tag(array(\'Name\'=>\'i\',\'HtmlBegin\'=>\'\',\'HtmlEnd\'=>\'\'));
$bbcode->add_tag(array(\'Name\'=>\'u\',\'HtmlBegin\'=>\'\',\'HtmlEnd\'=>\'\'));
$bbcode->add_tag(array(\'Name\'=>\'link\',\'HasParam\'=>true,\'HtmlBegin\'=>\'\',\'HtmlEnd\'=>\'\'));
$bbcode->add_tag(array(\'Name\'=>\'color\',\'HasParam\'=>true,\'ParamRegex\'=>\'$A-Za-z0-9#]+\',\'HtmlBegin\'=>\'\',\'HtmlEnd\'=>\'\',\'ParamRegexReplace\'=>array(\'/^$A-Fa-f0-9]{6}$/\'=>\'#$0\')));
$bbcode->add_tag(array(\'Name\'=>\'email\',\'HasParam\'=>true,\'HtmlBegin\'=>\'\',\'HtmlEnd\'=>\'\'));
$bbcode->add_tag(array(\'Name\'=>\'size\',\'HasParam\'=>true,\'HtmlBegin\'=>\'\',\'HtmlEnd\'=>\'\',\'ParamRegex\'=>\'$0-9]+\'));
$bbcode->add_tag(array(\'Name\'=>\'bg\',\'HasParam\'=>true,\'HtmlBegin\'=>\'\',\'HtmlEnd\'=>\'\',\'ParamRegex\'=>\'$A-Za-z0-9#]+\'));
$bbcode->add_tag(array(\'Name\'=>\'s\',\'HtmlBegin\'=>\'\',\'HtmlEnd\'=>\'\'));
$bbcode->add_tag(array(\'Name\'=>\'align\',\'HtmlBegin\'=>\'

\',\'HtmlEnd\'=>\'

\',\'HasParam\'=>true,\'ParamRegex\'=>\'(center|right|left)\'));
$bbcode->add_alias(\'url\',\'link\');
/* This outputs:
Bold text
Italic text
Underlinex text
A link
Another link
Red text
Email me!
20-point text
Text with a red background
Text with a line through it

Centered text

*/
print $bbcode->parse_bbcode(\'$b]Bold text$/b]
$i]Italic text$/i]
$u]Underlinex text$/u]
$link=http://www.twbb.org/]A link$/link]
$url=http://www.twbb.org/]Another link$/url]
$color=red]Red text$/color]
[email protected]]Email me!$/email]
$size=20]20-point text$/size]
$bg=red]Text with a red background$/bg]
$s]Text with a line through it$/s]
$align=center]Centered text$/align]\');
?>

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