View source for Issue:Asking a parser "replace " demo

{{Issue
 |Type        = Change Request 
 |Extension   = DPL
 |Version     = all
 |Description = Asking a parser "'''<nowiki>{{#replace:  [[User:Michael|Roc Michael]]  |  from |  to }}</nowiki>'''" demo
 |Status      = open
}}

== Problem ==
Hi Gero. 

Could you give me the samples on using parser "replace" (or using other way) with following cases. for exapmle <nowiki>{{#replace:  [[User:Michael|Roc Michael]]  |  from |  to }}</nowiki>

{|Class= wikitable width=100%
!Item 
!From (Before)
!To (After)
|----
!Case 1 
|align= center |<nowiki>[[User:Michael|Roc Michael]]</nowiki> <br>
and <br>
<nowiki>[[User:張三|張小三]]</nowiki> 
<br>or <br>
<nowiki>[[用戶:Michael|Roc Michael]]</nowiki> <br>
and <br>
<nowiki>[[用戶:張三|張小三]]</nowiki> 
|align= center |Roc Michael <br> and <br> 張小三
|--
!Case 2
|align= center |<nowiki>[[User:Michael|Roc Michael]]</nowiki> <br>
and <br>
<nowiki>[[User:張三|張小三]]</nowiki> 
<br>or <br>
<nowiki>[[用戶:Michael|Roc Michael]]</nowiki> <br>
and <br>
<nowiki>[[用戶:張三|張小三]]</nowiki> 
|align= center |Michael<br> and<br> 張三
|}
Please give me a hand.--[[User:Roc michael|Roc michael]] 02:33, 20 December 2007 (CET)

== Reply ==

<pre><nowiki>
 {{#replace:{{{1}}}|/^([^{{!}}]+\{{!}}){1}([^\]]+).*/|\2}}

 {{#replace:{{{1}}}|/^([^:]+:){1}([^{{!}}]+).*/|\2}}
</nowiki></pre>
Put the above code into a template and you will see that the user ID and the user name will be extracted.