[Qt-interest] QRegExp for document analysing

Alexandre Beraud aberaud at infflux.com
Mon Dec 6 14:18:58 CET 2010


Regex are easier to write of course. With capturing parenthesis you can 
handle, with one single regex, several kinds of patterns. Therefore it 
is also easier to read, provided that you comment your regex (it can be 
easy to write a regex and difficult to read it one year later). If you 
provide string beginning and end markers then the regex engine can work 
very fast.

Regards,

Alex


Le 06/12/2010 13:59, Omar AKHAM a écrit :
> Okay, thank you...So how can I know when to use a regex and when to 
> use a normal parser ?
>
> Omar.

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