[Qt-interest] Regular Expression Validating Username in QT

[Zimmermann, Gerrit]

Hallo Raja,

the dot is a special character in regexp, meaning "match any character". You need to excape it with a backslash (use \.).

Without meaning to be insulting: you should definitely reread a primer on regexp, at least the one in the QT documentation, but I'd recommend a more comprehensive one (google).


Regards,

Gerrit


From: qt-interest-bounces at trolltech.com [mailto:qt-interest-bounces at trolltech.com] On Behalf Of Raja Rokkam
Sent: Dienstag, 12. Januar 2010 13:12
To: QT Mailing LIST
Subject: [Qt-interest] Regular Expression Validating Username in QT

Hi All,

          I am trying to write a regexp validating an username which contains  a-z 0-9 -.@$


The regexp I have now is: QRegExp usRx( "^[a-zA-Z0-9][.]*[a-zA-Z0-9 at _$-]+" ); which matches everything. If I removed the "[.]*" it  jus checks for characters I need excluding the dot.
I am able to create regular expression for all the set except for dot . Whenever I try keeping the "dot" it starts taking in any character. Is there a special way in QT to do this ?


Thanks,
Raja.

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