* Regular Expressions in Ada 2005?
@ 2006-11-08 20:53 matthias.kistler
2006-11-08 21:14 ` Georg Bauhaus
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: matthias.kistler @ 2006-11-08 20:53 UTC (permalink / raw)
Hi!
Does anybody know, if it's possible to use regular expressions in Ada
2005? I come from Perl and I'm very interested in Ada but it's useless
for me without the possibility of using regular expressions similar to
Perl.
I found a GNAT-package providing only a regex-matcher. But I also
need a replacer. Elsewise it'd be useless for me.
Does anybody know about regular expressions in Ada 2005? Is there any
tutorial? Is there at least an Ada-library? Or can just anybody explain
to me, how to use regexes in Ada?
Thanks,
Matthias
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Regular Expressions in Ada 2005?
2006-11-08 20:53 Regular Expressions in Ada 2005? matthias.kistler
@ 2006-11-08 21:14 ` Georg Bauhaus
2006-11-08 21:49 ` Pascal Obry
2006-11-09 0:13 ` Jeffrey R. Carter
2 siblings, 0 replies; 6+ messages in thread
From: Georg Bauhaus @ 2006-11-08 21:14 UTC (permalink / raw)
On Wed, 2006-11-08 at 12:53 -0800, matthias.kistler@gmx.de wrote:
> Hi!
>
> Does anybody know, if it's possible to use regular expressions in Ada
> 2005? I come from Perl and I'm very interested in Ada but it's useless
> for me without the possibility of using regular expressions similar to
> Perl.
Ada comes with a rich set of string manipulation packages,
Ada.Strings.*, Ada.Characters.*, Ada.*Text_IO.Editing.
They cover a fair bit of what you would do using Perl's expressions
and translation operators in a sane way.
> I found a GNAT-package providing only a regex-matcher. But I also
> need a replacer. Elsewise it'd be useless for me.
The GNAT packages do provide scanning and replacement. There is a
tutorial in the package specifications.
Example programs:
http://shootout.alioth.debian.org/gp4/benchmark.php?test=regexdna&lang=gnat&id=3
http://shootout.alioth.debian.org/gp4/benchmark.php?test=regexdna&lang=gnat&id=4
#3 uses Unix style regular expressions.
#4 uses SPITBOL regular expressions.
SPITBOL patterns are quite powerful and fast, in fact you
can write an entire program just as a pattern. But don't do
that.
Georg
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Regular Expressions in Ada 2005?
2006-11-08 20:53 Regular Expressions in Ada 2005? matthias.kistler
2006-11-08 21:14 ` Georg Bauhaus
@ 2006-11-08 21:49 ` Pascal Obry
2006-11-08 22:12 ` matthias.kistler
2006-11-09 0:13 ` Jeffrey R. Carter
2 siblings, 1 reply; 6+ messages in thread
From: Pascal Obry @ 2006-11-08 21:49 UTC (permalink / raw)
To: matthias.kistler
matthias.kistler@gmx.de a �crit :
> I found a GNAT-package providing only a regex-matcher. But I also
> need a replacer. Elsewise it'd be useless for me.
Hum, you have seen GNAT.Regexp but probably not GNAT.Regpat. The later
does support replacement. As noted by others there is also GNAT.Spitbol.
Pascal.
--
--|------------------------------------------------------
--| Pascal Obry Team-Ada Member
--| 45, rue Gabriel Peri - 78114 Magny Les Hameaux FRANCE
--|------------------------------------------------------
--| http://www.obry.net
--| "The best way to travel is by means of imagination"
--|
--| gpg --keyserver wwwkeys.pgp.net --recv-key C1082595
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Regular Expressions in Ada 2005?
2006-11-08 21:49 ` Pascal Obry
@ 2006-11-08 22:12 ` matthias.kistler
0 siblings, 0 replies; 6+ messages in thread
From: matthias.kistler @ 2006-11-08 22:12 UTC (permalink / raw)
Hi!
Thank you very much to both of you! I'll try out your hints. Thanks!
Greetings,
Matthias
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Regular Expressions in Ada 2005?
2006-11-08 20:53 Regular Expressions in Ada 2005? matthias.kistler
2006-11-08 21:14 ` Georg Bauhaus
2006-11-08 21:49 ` Pascal Obry
@ 2006-11-09 0:13 ` Jeffrey R. Carter
2006-11-09 0:14 ` Jeffrey R. Carter
2 siblings, 1 reply; 6+ messages in thread
From: Jeffrey R. Carter @ 2006-11-09 0:13 UTC (permalink / raw)
matthias.kistler@gmx.de wrote:
>
> Does anybody know, if it's possible to use regular expressions in Ada
> 2005? I come from Perl and I'm very interested in Ada but it's useless
> for me without the possibility of using regular expressions similar to
> Perl.
You can also look at PragmARC.Regular_Expression_Matcher (and its
instantiation for Character and String,
PragmARC.Character_Regular_Expression_Matcher). The demo program,
strmsub, is a matching and replacing filter.
http://pragmada.home.mchsi.com/
--
Jeff Carter
"Pray that there's intelligent life somewhere up in
space, 'cause there's bugger all down here on earth."
Monty Python's Meaning of Life
61
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Regular Expressions in Ada 2005?
2006-11-09 0:13 ` Jeffrey R. Carter
@ 2006-11-09 0:14 ` Jeffrey R. Carter
0 siblings, 0 replies; 6+ messages in thread
From: Jeffrey R. Carter @ 2006-11-09 0:14 UTC (permalink / raw)
Jeffrey R. Carter wrote:
>
> The demo program, strmsub, is a matching and replacing filter.
Typo: that should be "strm_sub".
--
Jeff Carter
"Pray that there's intelligent life somewhere up in
space, 'cause there's bugger all down here on earth."
Monty Python's Meaning of Life
61
^ permalink raw reply [flat|nested] 6+ messages in thread
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2006-11-08 20:53 Regular Expressions in Ada 2005? matthias.kistler
2006-11-08 21:14 ` Georg Bauhaus
2006-11-08 21:49 ` Pascal Obry
2006-11-08 22:12 ` matthias.kistler
2006-11-09 0:13 ` Jeffrey R. Carter
2006-11-09 0:14 ` Jeffrey R. Carter
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