Created
October 11, 2009 20:05
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<?php | |
class Abcode { | |
const RES_STRING = 0; | |
const RES_FUNC_OBJECT = 1; | |
const RES_FUNC_NAME = 2; | |
const POS_START_KEY = 'start'; | |
private static $patterns = array(); | |
private static $patterns_count=0; | |
private $pattern; | |
private $type; | |
private $action; | |
public static function replace($string) | |
{ | |
for($i=0; $i<self::$patterns_count; $i++) | |
{ | |
$string = self::$patterns[$i]->apply($string); | |
} | |
return $string; | |
} | |
public static function clear($string) | |
{ | |
for($i=0; $i<self::$patterns_count; $i++) | |
{ | |
$string = self::$patterns[$i]->filter($string); | |
} | |
return $string; | |
} | |
public function __construct($pattern, $action, $pos = 'end') | |
{ | |
$this->pattern = $pattern; | |
$this->action = $action; | |
if(is_object($action)) | |
{ | |
$this->type = self::RES_FUNC_OBJECT; | |
} | |
elseif(is_string($action)) | |
{ | |
if(strstr($action, 'return')) | |
{ | |
$this->action = create_function('$match',$this->action); | |
$this->type = self::RES_FUNC_OBJECT; | |
} | |
elseif(substr ($action, -2 ) === '()') | |
{ | |
$this->type = self::RES_FUNC_NAME; | |
} | |
else | |
{ | |
$this->type = self::RES_STRING; | |
} | |
} | |
if($pos==self::POS_START_KEY) | |
{ | |
array_unshift(self::$patterns, $this); | |
} | |
else | |
{ | |
array_push(self::$patterns, $this); | |
} | |
self::$patterns_count += 1; | |
} | |
private function apply($string) | |
{ | |
switch($this->type) | |
{ | |
case self::RES_STRING: | |
$string = preg_replace($this->pattern, $this->action, $string); | |
break; | |
case self::RES_FUNC_OBJECT: | |
case self::RES_FUNC_NAME: | |
$string = preg_replace_callback($this->pattern, $this->action, $string); | |
} | |
return $string; | |
} | |
private function filter($string) | |
{ | |
return preg_replace($this->pattern, "$1", $string); | |
} | |
} | |
new Abcode("/\[b\](.*?)\[\/b\]/si","<strong>$1</strong>"); | |
new Abcode("/\[i\](.*?)\[\/i\]/si","<em>$1</em>"); | |
new Abcode("/\[u\](.*?)\[\/u\]/si","<span style=\"text-decoration: underline;\">$1</span>"); | |
$string = '[b]Ich[/b] [i]heisse[/i] [u]Peter[/u]'; | |
echo Abcode::replace($string); | |
# <strong>Ich</strong> <em>heisse</em> <span style="text-decoration: underline;">Peter</span> | |
echo Abcode::clear($string); | |
# Ich heisse Peter | |
?> |
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