Paul Libbrecht wrote:
Le 14-mars-09 à 19:53, Vincent Massol a écrit :
We'd need to put huge disclaimers everywhere
since this would cause
problems with users (the majority?) who have MySQL or other dbs set in
ISO8859-1, or their containers set a ISO8859-1 as the default, right?
Actually no.
My experience is that there's no "encoding mismatch" even with a mysql
which is set to iso-8859-1 while xwiki and jdbc is set to utf-8. The
only mismatch we endured until we moved to a mysql that's parametrized
for utf-8 is the storage inability for high-bytes characters (my test
cases was lambda λ and leq ≤) which simply got garbled after the
persist and read cycle happened (may take one hour sometimes on xwiki).
Yes, the problem is that mysql silently transforms characters it can't
store using the current charset into '?'. And since the document is
still in the cache, this won't get noticed for a while.
Is mysql in
UTF8 by default?
It was in my MacOSX MySQL which I downloaded (from
mysql.org) about a
year ago.
Same for my colleague on Windows.
Same for our sysadmin with a Linux MySQL downloaded from there.
But it was not the case with the mysql coming from a 3-years old SuSE
installation.
mysql set to utf8 on Gentoo.
Same question
for tomcat or other JEE containers.
Many many many times the platform encoding is used rather than the
containers' encoding. So that's MacRoman on mac! (enjoy!)
The re-encoding happens transparently though, there's no commonality
between that back-end and front-end.
The only problem I've seen in practice is the PDF export, which uses new
String(bytes) and String.getBytes() without specifying the xwiki.cfg
encoding. I've opened
http://jira.xwiki.org/jira/browse/XWIKI-3361 which
isn't hard to fix.
One thing that has bitten me more often than not is
that Apache Httpd
defaults to iso-8859-1 set explicitly on files with suffix html (so the
mime-type is text/html;charset=iso-8859-1 instead of leaving to the meta
head element the luxury of specifying that). I believe it should not
affect normal XWiki though.
paul
PS: I think that a sane admin that does an update will diff xwiki.cfg
and will see the difference!
Absolutely. Unfortunately sane admins are almost as rare as flying pigs.
Almost.
--
Sergiu Dumitriu
http://purl.org/net/sergiu/