[Qt-interest] Reading data from ASCII file

[yogesh upreti]

Hi Andre,
I thought of doing that but was not able to make sure that my perl code is
not stolen in the process :(...
Can you suggest me someway to secure it. I was thinking to add it as a
resource file and write out the file in real time to run it..
But I wasn't able to make sure that nothing can copy it somewhere else.

and secondly, how will I make sure that the user have proper perl version
before stating the programm???

Thanks for your help.

Yogesh

From: Andre Somers <andre at familiesomers.nl>
To: qt-interest at qt.nokia.com
Date: Mon, 11 Apr 2011 08:14:50 +0200
Subject: Re: [Qt-interest] Reading data from ASCII file
Op 10-4-2011 23:43, yogesh upreti schreef:

> Hi Group,
> I am trying to convert some of my Text file manipulating, non GUI perl
> scripts to GUI based Qt codes.
> During these I have to read data out of around 20-50 mb text files, check
> some patterns in every line and show them in better form.
>
> Now problem is that a perl program takes around 3.5 sec to read a 15 mb
> file and do all the manipulation and show the results in  command line.
>
> and a Qt program is taking around 7 Sec just to read the data simply,
> without and pattern search or something.
>
> I was using QTextStream to read the files, but after some research I am
> using QFile directly. with this I have reduced the reading time.
>
>
> But still I am not able to match the time with perl script. Do anyone have
> any suggestion??
>
> Personally, I think you are not going to be able to match Perls time. Perl
is optimized for exactly this kind of scenario, while Qt is typically used
in very different settings. What you might do, is instead of doing the work
in Qt itself, simply build a GUI around your perl scripts that you control
using QProcess. That will get you the best of both worlds: ultra-fast text
processing, and the ease of Qt for your GUI.

André
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