From: luigi scarso <luigi.scarso@gmail.com>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: BNF grammar for ConTeXt (was: What happened with sectionworld?)
Date: Thu, 30 Apr 2009 10:57:04 +0200 [thread overview]
Message-ID: <fe8d59da0904300157i1dfc223cm1acaee9af52a05ba@mail.gmail.com> (raw)
In-Reply-To: <20090430101646.237ad726@KUBUNTU64>
[-- Attachment #1.1: Type: text/plain, Size: 2032 bytes --]
On Thu, Apr 30, 2009 at 10:16 AM, R. Bastian <rbastian@free.fr> wrote:
> On Thu, 30 Apr 2009 09:48:40 +0200
> luigi scarso <luigi.scarso@gmail.com> scribit:
>
> > R. Bastian:
> >
> > > CONTEXT_SOURCE ::= PREAMBLE "\starttext" TEXT "\stoptext" |
> CONTEXT_SOURCE
> > >>> TEXT ::= STARTSTOPS | SETUPS | DEFINES | OTHERS [ TEXT
> > >>
> > >> luigi:
> >
> > > To be general, i think
> > >> MY_CONTEXT_SOURCE ::= MACRO* END
> > >>
> > >
> > R. Bastian:
> >
> > > I dont understand the sense of "\end\starttext"
> >
> > sense==semantic
> >
> > "\end""\starttext" is a valid string for a hypothetical bnf grammar of
> > ContTeXt
> > which is not valid for your bnf ;
> > "\end""\starttext""\stoptext" is in your bnf grammar
> > and has the same semantic of "\end""\starttext" .
> >
> > The point is : a bnf for Context can be hard to define
> >
> >
> > luigi:
> >
> > think that a bnf or lpeg grammar is really useful for a sort of
> > >> standard-ConTeXt
> > >> or minimal-ConTeXt or light-ConTeXt
> > >> ie a ConTeXt to use as "reference"
> > >>
> > >
> > R. Bastian:
> >
> > > Exactly what I need : standard, minimal and light
> > >
> >
> > Exactly what can be hard to define and capture in a bnf .
> >
> > wolfgang
> >
> > >
> > > How could a BNF grammar help to learn ConTeXt,
> >
> > a bnf can help to build a syntax checker, a highlighter etc.
> > Actually the only way to say that you have a valid ConTeXt string
> > is running context on that string .
> >
> > The semantic is another story.
>
> OK - but isn't it not worth to try it ?
>
sure, and I encourage you to go on and possibly write something x next
eurotex.
My suggestions to start :
1) define a **simple but significative** domain ,ie "this grammar is for
subset of ConTeXt language dedicated to variable-data pdf forms"
2) make a bnf grammar spec
3) build a parser lex/yacc for 2)
4) make a lpeg grammar
5) user lpeg inside context for 3)
PS
it was just a coincidence , but for other reasons I have found this link
http://martinfowler.com/dslwip/
--
luigi
[-- Attachment #1.2: Type: text/html, Size: 3028 bytes --]
[-- Attachment #2: Type: text/plain, Size: 487 bytes --]
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : https://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
next prev parent reply other threads:[~2009-04-30 8:57 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-28 17:42 What happened with sectionworld? Henning Hraban Ramm
2009-04-28 18:53 ` Wolfgang Schuster
2009-04-28 21:25 ` Henning Hraban Ramm
2009-04-29 8:24 ` Hans Hagen
2009-04-29 10:24 ` Wolfgang Schuster
2009-04-29 12:35 ` R. Bastian
2009-04-29 12:54 ` Wolfgang Schuster
2009-04-29 15:07 ` Idris Samawi Hamid ادريس سماوي حامد
2009-04-29 15:43 ` R. Bastian
2009-04-29 15:55 ` luigi scarso
2009-04-29 16:46 ` R. Bastian
2009-04-29 18:00 ` luigi scarso
2009-04-29 21:16 ` R. Bastian
2009-04-29 21:24 ` BNF grammar for ConTeXt (was: What happened with sectionworld?) Wolfgang Schuster
2009-04-30 7:48 ` luigi scarso
2009-04-30 8:16 ` R. Bastian
2009-04-30 8:57 ` luigi scarso [this message]
2009-04-30 10:05 ` R. Bastian
2009-04-30 10:12 ` luigi scarso
2009-04-30 20:03 ` R. Bastian
2009-04-29 15:57 ` footnote numbers size in heads Horacio Suarez
2009-04-29 21:17 ` Wolfgang Schuster
2009-04-29 18:14 ` What happened with sectionworld? Wolfgang Schuster
2009-04-29 18:23 ` Idris Samawi Hamid ادريس سماوي حامد
2009-04-29 18:27 ` Hans Hagen
2009-04-29 18:31 ` Wolfgang Schuster
2009-04-29 18:34 ` Wolfgang Schuster
2009-04-29 18:40 ` Idris Samawi Hamid ادريس سماوي حامد
2009-04-29 13:12 ` Hans Hagen
2009-04-29 13:53 ` Mohamed Bana
2009-04-29 15:11 ` Henning Hraban Ramm
2009-04-29 21:07 ` Wolfgang Schuster
2009-04-30 15:40 ` Henning Hraban Ramm
2009-04-30 17:06 ` Wolfgang Schuster
2009-04-30 18:33 ` Henning Hraban Ramm
2009-04-30 18:46 ` Wolfgang Schuster
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=fe8d59da0904300157i1dfc223cm1acaee9af52a05ba@mail.gmail.com \
--to=luigi.scarso@gmail.com \
--cc=ntg-context@ntg.nl \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).