matching a string to extract substrings for which somefunctionreturns true

[Amit Khemka]

thanks for you suggestions :-) ..

cheers,

On 11/23/05, Fredrik Lundh <fredrik at pythonware.com> wrote:
> I wrote:
>
> > if you cannot cache session data on the server side, I'd
> > recommend inventing a custom record format, and doing your
> > own parsing.  turning your data into e.g.
> >
> >    "foo:1:foobar:3:0+foo1:2:foobar1:3:1+foo2:2:foobar2:3:2"
> >
> > is trivial, and the resulting string can be trivially parsed by a couple
> > of string splits and int() calls.
>
> on the other hand, the "myeval" function I posted here
>
> http://article.gmane.org/gmane.comp.python.general/433160
>
> should be able to deal with your data, as well as handle data from
> malevolent sources without bringing down your computer.
>
> just add
>
>     if token[1] == "(":
>         out = []
>         token = src.next()
>         while token[1] != ")":
>             out.append(_parse(src, token))
>             token = src.next()
>             if token[1] == ",":
>                 token = src.next()
>         return tuple(out)
>
> after the corresponding "[" part, and call it like:
>
>     data = myeval("[" + input + "]")
>
> </F>
>
>
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>


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