a perl question

[S Mathias]

cat asdf.txt
bla-bla
bla-bla
bla[XYZ]
importantthing
another important thing
[/XYZ]
bla-bla
bla-bla
[XYZ]
yet another thing
hello!
[/XYZ]
bla-bla
etc.
$ SOMEPERLMAGIC asdf.txt > output.txt
$ cat output.txt
importantthing
another important thing
yet another thing
hello!

how can i sovle this question? what is SOMEPERLMAGIC? are there any perl gurus, that have a little spare time?

Thank you! :\

[Larry Brower]

You haven't asked a question. Also, this is not a perl mailing list. You keep sending messages asking how to do things instead of doing your own research. We are not Google, but I hear if you actually use Google and do things for yourself once and a while you will magicaly get answers.

Connected by MOTOBLUR™ on T-Mobile

-----Original message-----
From: S Mathias 
To: [e-mail]
Sent: Tue, Jan 4, 2011 04:27:35 CST
Subject: a perl question

cat asdf.txt
bla-bla
bla-bla
bla[XYZ]
importantthing
another important thing
[/XYZ]
bla-bla
bla-bla
[XYZ]
yet another thing
hello!
[/XYZ]
bla-bla
etc.
$ SOMEPERLMAGIC asdf.txt > output.txt
$ cat output.txt
importantthing
another important thing
yet another thing
hello!

how can i sovle this question? what is SOMEPERLMAGIC? are there any perl gurus, that have a little spare time?

Thank you! :\

[Joachim Backes]

On 01/04/2011 11:27 AM, S Mathias wrote:
> cat asdf.txt
> bla-bla
> bla-bla
> bla[XYZ]
> importantthing
> another important thing
> [/XYZ]
> bla-bla
> bla-bla
> [XYZ]
> yet another thing
> hello!
> [/XYZ]
> bla-bla
> etc.
> $ SOMEPERLMAGIC asdf.txt > output.txt
> $ cat output.txt
> importantthing
> another important thing
> yet another thing
> hello!
>
> how can i sovle this question? what is SOMEPERLMAGIC? are there any perl gurus, that have a little spare time?
>
> Thank you! :\

Hi,

suppose the input data are saved in the file x.
Then this little command line could help:

perl -e 'while (<>) {/thing|hello/ && print}'<x

resp. create an executable file thing.pl with 2 lines

#!/usr/bin/perl
while (<>) {/thing|hello/ && print}

and call

thing.pl <x
or
cat x|./thing.pl

This is you needed?

Kind regards

[Michael Schwendt]

On Tue, 04 Jan 2011 12:05:29 +0100, Joachim wrote:
> On 01/04/2011 11:27 AM, S Mathias wrote:
> > cat asdf.txt
> > bla-bla
> > bla-bla
> > bla[XYZ]
> > importantthing
> > another important thing
> > [/XYZ]
> > bla-bla
> > bla-bla
> > [XYZ]
> > yet another thing
> > hello!
> > [/XYZ]
> > bla-bla
> > etc.
> > $ SOMEPERLMAGIC asdf.txt > output.txt
> > $ cat output.txt
> > importantthing
> > another important thing
> > yet another thing
> > hello!
> >
> > how can i sovle this question? what is SOMEPERLMAGIC? are there any perl gurus, that have a little spare time?
> >
> > Thank you! :\
>
> Hi,
>
> suppose the input data are saved in the file x.
> Then this little command line could help:
>
> perl -e 'while (<>) {/thing|hello/ && print}'<x
>
> resp. create an executable file thing.pl with 2 lines
>
> #!/usr/bin/perl
> while (<>) {/thing|hello/ && print}
>
> and call
>
> thing.pl <x
> or
> cat x|./thing.pl
>
> This is you needed?

Very likely not. As I understand it, he wants a Perl script to filter
out arbitrary text between the opening and closing tags [XYZ] … [/XYZ].
It doesn't need a Perl "guru" to program something like that, but it's
a little bit of an exercize for somebody who wants to start programming
in Perl.

[Dave Cross]

On 4 January 2011 10:27, S Mathias  wrote:
> cat asdf.txt
> bla-bla
> bla-bla
> bla[XYZ]
> importantthing
> another important thing
> [/XYZ]
> bla-bla
> bla-bla
> [XYZ]
> yet another thing
> hello!
> [/XYZ]
> bla-bla
> etc.
> $ SOMEPERLMAGIC asdf.txt > output.txt
> $ cat output.txt
> importantthing
> another important thing
> yet another thing
> hello!
>
> how can i sovle this question? what is SOMEPERLMAGIC? are there any perl gurus, that have a little spare time?

It looks like you need something a bit like this.

#!/usr/bin/perl

use strict;
  use warnings;

while (<>) {
    if (m|[XYZ]| .. m|[/XYZ]|) {
      next if m|[/?XYZ]|;
      print;
    }
  }

But I can't be sure as you haven't actually explained what you question is.

For Perl questions, you might be better advised to try Stack Overflow
or your local Perl Mongers group.

Dave...

[thomas cameron]

On 01/04/2011 04:27 AM, S Mathias wrote:
> cat asdf.txt
> bla-bla
> bla-bla
> bla[XYZ]
> importantthing
> another important thing
> [/XYZ]
> bla-bla
> bla-bla
> [XYZ]
> yet another thing
> hello!
> [/XYZ]
> bla-bla
> etc.
> $ SOMEPERLMAGIC asdf.txt>  output.txt
> $ cat output.txt
> importantthing
> another important thing
> yet another thing
> hello!
>
> how can i sovle this question? what is SOMEPERLMAGIC? are there any perl gurus, that have a little spare time?

Seriously, Mathias.  These look like questions straight out of entry 
level university classes.  Are you asking mailing lists to do your 
homework for you?

Not cool at all.

TC

[John Haxby]

On 4 January 2011 14:27, Thomas Cameron wrote:
> Seriously, Mathias.  These look like questions straight out of entry
> level university classes.  Are you asking mailing lists to do your
> homework for you?
>
> Not cool at all.

Especially as your supervisor may well be lurking on lists to see who is
trying to get other people to do their assignments!

jch