Re: [Dwai-developers] TODOs

[Lash <la...@em...>]

Il giorno Fri, 31 Mar 2006 16:08:12 +0200
Lucio Crusca <lu...@su...> ha scritto:

> > why we take the dependecy?? if we install the package with apt!
> Of course, but the installation of the package is only the final
> step.
[...]
ok!

>=20
> > dpkg -I packagename | grep Depends | cut -d : -f 2
> > or
> > dpkg -I packagename | grep Depends | cut -d : -f 2 | cut -d \  -f 1
> > for the first depend package
> Is the output of dpkg -l standard enough to rely on that? Don't we
> run the risk to have different outputs for different versions of apt?

there is an error, packagename is instead packagename.deb.
I hope it's standard.

> > > What about Java
> > No! please
> When I wrote the world "Java" I was already suspecting that someone
> would have replied this way. Java is there just in case we don't find
> anything else and, since I know Java, it would be easy for me to use
> that (it has all the necessary XML stuff straight builtin). However I
> know C++=20
I don't know java but i don't like it.

> I'd be happy to learn Python.
i'm too!
> > > C++?
> > It's my favourite!
> What about XML? Do you know which libraries are needed for it?
no :(
we can use a C library if there'arent c++ libraries

> >> 1 - Reading the ar format directly (not that wise in my opinion
> >> unless we know the .deb ar format won't change frequently)
> >we can do an explode with the : char
> I don't know what the : char does, however I guess it extracts the ar=20
> contents. The problem is: how standard are those contents? Can we
> rely on them (in particular the dep list) being always the same
> between apt versions?

explode is a php function that split a string(but we can reproduce it in
the language we will use), the : char is an argoument that we can give
to this function for split the string returned by apt-cache so we can
separete the localized string by the depend.
apt-cache depends packagename however don't return the version of a
depend if there is.

explode function in php:
array explode ( string separator, string string [, int limit] )
Returns an array of strings, each of which is a substring of string
formed by splitting it on boundaries formed by the string separator.

Bye
--=20
Andrea Corradi | Debian User | www.debian.org
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