German Book about GNU-Pascal needs contributors

[Eike Lange-2]

Hi Folks!

There is a book in German language about GNU-Pascal available at
Wikibooks. See http://de.wikibooks.org/wiki/GNU-Pascal_in_Beispielen

There is a publishing company, who is going to sell this and some
other books from wikibooks. The money will be donated to the wikimedia
foundation.

I do not have the time, to step through this book again and fix all
those things, which might have changed or should be rewritten. If
someone would like to take this job, feel free. Translators are also
welcome.
Without your help, this book becomes more and more outdated and not
worth publishing.

Yours

Eike

[Waldek Hebisch]

Eike wrote:

> Hi Folks!
>
> There is a book in German language about GNU-Pascal available at
> Wikibooks. See http://de.wikibooks.org/wiki/GNU-Pascal_in_Beispielen
>
> There is a publishing company, who is going to sell this and some
> other books from wikibooks. The money will be donated to the wikimedia
> foundation.
>
> I do not have the time, to step through this book again and fix all
> those things, which might have changed or should be rewritten. If
> someone would like to take this job, feel free. Translators are also
> welcome.
> Without your help, this book becomes more and more outdated and not
> worth publishing.

I quickly looked at the book (and especially at the examples):
it seems that examples are adjusted to newest GPC version.  My
impression is that most of the book uses just standard constructs,
so there should be little need to update them.  Of course,
before publication it is better to run examples trough compiler
(preferably trough multiple versions of the compiler)...

It seems that there are some constructs are missing: OOP, structured
value constructors, ISO modules.  If the goal is to have a
reference book one should probably also include many builtion
routines.  OTOH if the goal is to introduce people to programming
using GNU Pascal, then author chooses what topics to include,
and the choice made looks reasonable.

--
                              Waldek Hebisch
hebisch@...

[Markus Gerwinski]

Hi Folks,

can someone please point me to the file(s) with the definitions of the GPC
keywords?

I would like to attempt some changes to the compiler, that would require the
introduction of new keywords. ("try", "except", "finally" and "property", to be
specific.) So I grepped the p-directory for "object", "abstract" and some other
common keywords, but didn't find the definitions, neither in the parser.y file,
nor in any of the .c or .h files.

Since this is my very first attempt to modify the compiler itself, I would also
appreciate any input (beyond section 12 of the GPC Manual) and examples on the
how-tos: Which files to modify, how to correctly invoke Bison etc.

Best,

  Markus

[Waldek Hebisch]

Markus Gerwinski wrote:

> Hi Folks,
>
> can someone please point me to the file(s) with the definitions of the GPC
> keywords?
>
> I would like to attempt some changes to the compiler, that would require the
> introduction of new keywords. ("try", "except", "finally" and "property", to be
> specific.) So I grepped the p-directory for "object", "abstract" and some other
> common keywords, but didn't find the definitions, neither in the parser.y file,
> nor in any of the .c or .h files.
>

Keywords are defined in predef.def.  Grepping you will find a commented
out section containing definitions of "try", "except", "finally" and
"property".  Note however that those are Delphi keywords (property
is also in Object Pascal) -- giving them different meaning is not a
good idea.

> Since this is my very first attempt to modify the compiler itself, I would also
> appreciate any input (beyond section 12 of the GPC Manual) and examples on the> how-tos: Which files to modify, how to correctly invoke Bison etc.
>

Details depend on what you want to do.  I normally just use 'make'
to rebuild gpc -- 'make' will run Bison etc. if needed.  If you
need to do a lot of work on grammar running 'bison -v' may be
helpful ('-v' flag creates detailed report of the grammar).


--
                              Waldek Hebisch
hebisch@...

[Markus Gerwinski]

Waldek Hebisch wrote:
> Keywords are defined in predef.def.

Thank you very much!

> Grepping you will find a commented out section containing definitions of
> "try", "except", "finally" and "property".  Note however that those are
> Delphi keywords (property is also in Object Pascal) -- giving them different
> meaning is not a good idea.

I pretty much intend to implement the Delphi syntax here. (try-statements and
properties for our current, BP-style objects) I also have a few extensions in
mind, but they wouldn't prevent anyone from using the usual Delphi syntax.

> Details depend on what you want to do.  I normally just use 'make'
> to rebuild gpc -- 'make' will run Bison etc. if needed.  If you
> need to do a lot of work on grammar running 'bison -v' may be
> helpful ('-v' flag creates detailed report of the grammar).

Thanks again!