about Octave's syntax

[Eduardo Alejandro Cuesta Llanes]

I need the formal Octave's syntax for make a parser...

Thanks

[Jaroslav Hajek-2]

On Wed, Jul 1, 2009 at 4:08 PM, Eduardo Alejandro Cuesta
Llanes<eacuesta@...> wrote:
> I need the formal Octave's syntax for make a parser...
>
> Thanks
>

That's going to be difficult, it's really full of quirks. I don't
think the grammar is currently written anywhere.


--
RNDr. Jaroslav Hajek
computing expert & GNU Octave developer
Aeronautical Research and Test Institute (VZLU)
Prague, Czech Republic
url: www.highegg.matfyz.cz

[shaiay]

On Thu, Jul 2, 2009 at 7:27 AM, Jaroslav Hajek<highegg@...> wrote:

> On Wed, Jul 1, 2009 at 4:08 PM, Eduardo Alejandro Cuesta
> Llanes<eacuesta@...> wrote:
>> I need the formal Octave's syntax for make a parser...
>>
>> Thanks
>>
>
> That's going to be difficult, it's really full of quirks. I don't
> think the grammar is currently written anywhere.
>

I suppose the parser itself contains some sort of representation of
the grammar ....

Shai

[David Grundberg-2]

Eduardo Alejandro Cuesta Llanes wrote:
> I need the formal Octave's syntax for make a parser...
>
> Thanks
>  
The syntax is not documented in a human-readable form (spare the
programmers). There is no BNF-like form for you to read.

If you are interested in a parser, you can just look at the parser
implemented by Octave. It's written using the GNU tools for parser
generation (i.e. compiler compilation). They are called flex and bison.

Lexical analyzer generation (flex input):
http://hg.savannah.gnu.org/hgweb/octave/file/79c4dd83d07f/src/lex.l

Parser generation (bison input):
http://hg.savannah.gnu.org/hgweb/octave/file/79c4dd83d07f/src/parse.y

David