[erlang-questions] string to tupple ?

info <>
Mon Jun 21 01:08:16 CEST 2010


I tested. I had a bad argument for list_of_integer.
I suppose because a,b,c ... are strings ?
list_to_integer("46.123456")


The best representation depends on what operations you need to perform. List
of tuples or just a plain list of integers would most likely be best.
Parsing that format is pretty easy:

L = string:tokens("(a,b),(c,d),(e,f)","(),").
[list_to_integer(C) || C  <- L].


Sergej

On Sun, Jun 20, 2010 at 7:43 PM, info  < > wrote:

> After a few manipulation with list, string, I broke my head with this
> problem.
>
> I extract from a mysql database a list representing a list of coordinates.
> The string is like this "(a,b),(c,d),(e,f) ......."
> I would like to transform this string in order to easily manipulate each
> coordinate.
> What is the best representation in erlang ?
> - a list of tupples : if yes how to transform it in [{a,b},{c,d},{e,f},
> ....]
> - other representations ?
>
> John
>


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