Aflex and ASCII-8 characters

Aflex and ASCII-8 characters

[Lionel Najman]

Hi,

I'm developping an Ada scanner with Aflex and Ayacc and I need to
parse ASCII-8 characters. I know that Aflex is limited to ASCII-7 but
I wanted to know if someone has modified Aflex source so as to parse
ASCII-8 characters. It seems that in 1995
(http://groups.google.com/groups?q=aflex+AND+ascii&hl=en&selm=3v54mf$2224@info4.rus.uni-stuttgart.de&rnum=1),
someone called Ralph Paul successed but of course today his mail is
unreachable ...

Thanks for your help,

Lionel Najman

Re: Aflex and ASCII-8 characters

[David Starner]

On 17 Jan 2002 16:53:23 -0800, Lionel Najman <najman@gla.ecoledoc.lip6.fr> wrote:
> I'm developping an Ada scanner with Aflex and Ayacc and I need to
> parse ASCII-8 characters. 

ASCII-8? What's that?

Seriously, there are dozens of 8-bit codes with ASCII as a proper subset
in current use. Referring to any one of them as 8-bit ASCII is confusing
and inaccurate.

> I know that Aflex is limited to ASCII-7 but
> I wanted to know if someone has modified Aflex source so as to parse
> ASCII-8 characters. 

It shouldn't be hard to do, provided Aflex doesn't munge data into the
8th bit. Ada95 provides more support for 8-bit characters than Ada83, at
least in theory. Or you could try OpenToken, by Ted Dennison, which
should support 8-bit characters.

-- 
David Starner - starner@okstate.edu, dvdeug/jabber.com (Jabber)
Pointless website: http://dvdeug.dhis.org
When the aliens come, when the deathrays hum, when the bombers bomb,
we'll still be freakin' friends. - "Freakin' Friends"

Re: Aflex and ASCII-8 characters

[Pascal Obry]

najman@gla.ecoledoc.lip6.fr (Lionel Najman) writes:

> Hi,
> 
> I'm developping an Ada scanner with Aflex and Ayacc and I need to
> parse ASCII-8 characters. I know that Aflex is limited to ASCII-7 but
> I wanted to know if someone has modified Aflex source so as to parse
> ASCII-8 characters. It seems that in 1995
> (http://groups.google.com/groups?q=aflex+AND+ascii&hl=en&selm=3v54mf$2224@info4.rus.uni-stuttgart.de&rnum=1),
> someone called Ralph Paul successed but of course today his mail is
> unreachable ...

There is one version available on my homepage. It is a port to GNAT and can be
used with ASCII-8 characters.

  Direct link (the Web pages are in french):

        http://perso.wanadoo.fr/pascal.obry/contrib.html

Pascal.

-- 

--|------------------------------------------------------
--| Pascal Obry                           Team-Ada Member
--| 45, rue Gabriel Peri - 78114 Magny Les Hameaux FRANCE
--|------------------------------------------------------
--|         http://perso.wanadoo.fr/pascal.obry
--|
--| "The best way to travel is by means of imagination"

Re: Aflex and ASCII-8 characters

[Lionel Najman]

Thanks it works !!
I've even found the differences with my version so as to patch it

Accents are no more a problem... :))

"Gautier Write-only-address" <gautier_niouzes@hotmail.com> wrote in message news:<mailman.1011343622.28135.comp.lang.ada@ada.eu.org>...
> >I wanted to know if someone has modified Aflex source so as to parse
> >ASCII-8 characters.
> 
> The Aflex version in newp2ada.zip (link below) is able
> to parse 8-bit characters.
> HTH
> ________________________________________________________
> Gautier  --  http://www.mysunrise.ch/users/gdm/gsoft.htm
> 
> NB: For a direct answer, address on the Web site!
> 
> 
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