On 14/12/09 19:32 +0100, Hartmut Goebel wrote:
> > This representation is of course more verbose (and more difficult to
> > read for a human) that the current implementation but provides a
> > solution that is easier to parse for non-python software. This would
> > allow to interact easily with the Tryton server in any language
> > (currently any external program need to understand strings like:
> > "company' in context and '=' or '!=' ", "context.get('company')",
> > etc).
>
> > On Dec 14, 4:15 pm, Cédric Krier <[email protected]> wrote:
>
> I'm not quite sure what exactly you are proposing. Are you proposing to
> change the domain specific language as the user/programmer writes it or
> as it is passed to the client?
both
>
> If you are proposing to change the language as passed to the client, I'
> with you. We should be language independent here.
>
> I vote against changing the language as the user/programmer writes it in
> such a way as you both propose for some reason: Programmers have to
> learn yet another language, we gain no benefit here and the current
> language is easily parsed in python.
>
> >> [{'__class__': 'eval', 'v': "['parent', '=', False]"}]
> >> {'company': {'__class__': 'eval', 'v': "company or False"}}
> >> {'__class__': 'eval', 'v': "[16, currency_digits]"}
> >> {'__class__': 'eval', 'v': "len(lines) and True or False"}
>
> This is terrible unreadable! We should not expose this to the user nor
> to the programmer. It looks ugly and is redundant.
There is no redundant.
>
> bch schrieb:
>
> > Another solution is to use a list representation of those strings
> > (inspired by Scheme syntax), example here: http://dpaste.org/ZJey/
>
> Maybe we could extend your idea towards some function-oriented style.
> This should allow a very simple implementation on almost every language
> suporting some kind of 'evel()'. In Python this could be implemented
> quite easily like in the example: http://dpaste.org/kIZy/
I don't understand as you say you don't want to change the language.
--
Cédric Krier
B2CK SPRL
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Belgium
Tel: +32 472 54 46 59
Email: [email protected]
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