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List:       kde-core-devel
Subject:    Re: Review Request: Fix sanitization of dbus path in KMainWindow
From:       Thiago Macieira <thiago () kde ! org>
Date:       2009-08-17 21:45:59
Message-ID: 200908172346.07114.thiago () kde ! org
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Thomas Lübking wrote:
>Am Monday 17 August 2009 schrieb Matthew Woehlke:
>> If you'd like to "one-up" my patch, please feel free :-). Otherwise
>> I'm not sure what you have in mind.
>
>i guess sth. like
>
>QRegExp identifier("[A-Za-z0-9_]");
>o.objectName().mid(i,1).contains(identifier);
>
>Performance ain't crucial here (and QChar::isLetter() just tests some
> flags), but i just tested and QChar grants ::isLetter to really a lot
> of stuff (esp. as any utf-8 char seems to be split an the first part
> becomes a letter, though it's /no/ [A-Za-z] :-(
>
>(new test code attached)

No need for QRegExp. Just iterate over the string and change the 
characters that aren't A-Z, a-z, 0-9 and underscore.

-- 
Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
  Senior Product Manager - Nokia, Qt Development Frameworks
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