Hi Denis,
  On 24 Jan 2017, at 16:01, Denis GERMAIN
<dt.germain(a)gmail.com> wrote:
 Hello,
 After having succesfully migrated from a 300 pages mediawiki to xwiki
 (which worked like a charm with the FilterStream app), 
Nice :)
  I need to find a way
 to automate modifications to the migrated xwiki pages.
 In mediawiki, I could create "highlighted boxes" in which I put code by
 simply adding a space caracter as the very first caracter of each line.
 FilterStream application converted this empty space to "}}}" and
"{{{"
 which is totally the right way to convert this from the MW syntax to XWiki
 syntax, but doesn't fit my needs.
 Ideally, I'd like to convert every "{{{" tags to "{{code}}" and
every "}}}"
 tags to "{{/code}}"
 Do you have any idea how to achieve this ? 
I’ve created this FAQ entry for you:
http://www.xwiki.org/xwiki/bin/view/FAQ/How%20to%20search%20and%20replace%2…
I hope it answers your question :)
Thanks
-Vincent
 Regards
 Denis GERMAIN