Re: [NTG-context] BNF grammar for ConTeXt (was: What happened with sectionworld?)
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. -- luigi ___ 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 ___
Re: [NTG-context] BNF grammar for ConTeXt (was: What happened with sectionworld?)
On Thu, 30 Apr 2009 09:48:40 +0200 luigi scarso luigi.sca...@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 ? -- luigi ___ 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 ___
Re: [NTG-context] BNF grammar for ConTeXt (was: What happened with sectionworld?)
On Thu, Apr 30, 2009 at 10:16 AM, R. Bastian rbast...@free.fr wrote: On Thu, 30 Apr 2009 09:48:40 +0200 luigi scarso luigi.sca...@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 ___ 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 ___
Re: [NTG-context] BNF grammar for ConTeXt (was: What happened with sectionworld?)
On Thu, 30 Apr 2009 10:57:04 +0200 luigi scarso luigi.sca...@gmail.com scribit: On Thu, Apr 30, 2009 at 10:16 AM, R. Bastian rbast...@free.fr wrote: On Thu, 30 Apr 2009 09:48:40 +0200 luigi scarso luigi.sca...@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 yes 2) make a bnf grammar spec yes 3) build a parser lex/yacc for 2) later 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 I think a wiki would be a better forum than this mailing-list ? ___ 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 ___
Re: [NTG-context] BNF grammar for ConTeXt (was: What happened with sectionworld?)
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 yes 2) make a bnf grammar spec yes 3) build a parser lex/yacc for 2) later why ? There is no difference between 2 and 3 I think a wiki would be a better forum than this mailing-list ? hmm this mailing-list is ok for this kind of discussions a wiki is wiki.contextgarden.net and you should put your results in your personal page -- luigi ___ 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 ___
Re: [NTG-context] BNF grammar for ConTeXt (was: What happened with sectionworld?)
On Thu, 30 Apr 2009 12:12:10 +0200
luigi scarso luigi.sca...@gmail.com scribit:
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
yes
2) make a bnf grammar spec
yes
3) build a parser lex/yacc for 2)
later
why ? There is no difference between 2 and 3
True, but I think that the aim of such a BNF-grammar
is to help in a concise way the newbie and tell him _what_ can be
made and _when_ {\it in quel tempo}.
(In fact, I dont like lex/yacc because it seems not a good idea to
intervene on the generated code).
I think a wiki would be a better forum than this mailing-list ?
hmm
this mailing-list is ok for this kind of discussions
a wiki is wiki.contextgarden.net
and you should put your results in your personal page
--
luigi
___
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
___
[NTG-context] BNF grammar for ConTeXt (was: What happened with sectionworld?)
Am 29.04.2009 um 23:16 schrieb R. Bastian: I 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 Exactly what I need : standard, minimal and light How could a BNF grammar help to learn ConTeXt, it did not explain what a environment do and where is the advantage to ConTeXt's own command explanations with the information which arguments are optional and what keys and values a command takes. In a recent MkIV you even have the option to enable a key-val-checkers which mention invalid keys on the terminal. I have no problems to be corrected when I'm wrong or missing something. Wolfgang ___ 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 ___
