[erlang-questions] beginner: How should regexp:split/2 be replaced?

[Ahmed Omar]

regexp:split("Hello world, Hello", "[ ]*,[ ]*").
{ok,["Hello world","Hello"]}

re:split("Hello world, Hello", "[ ]*,[ ]*",[{return, list}]).
["Hello world","Hello"]

regexp:matches("Hello \n","\n").
{match,[{7,1}]}

re:run("Hello \n","\n").
{match,[{6,1}]}

but i'm not sure why the start position is different here

On Tue, Apr 19, 2011 at 3:30 PM, Bengt Kleberg
<bengt.kleberg@REDACTED>wrote:

> Greetings,
>
> I have inherited some code without a test directory. I get the following
> compiler warnings:
> ./compile_funcs.erl:603: Warning: regexp:split/2: the regexp module is
> deprecated (will be removed in R15A); use the re module instead
> ./compile_funcs.erl:645: Warning: regexp:matches/2: the regexp module is
> deprecated (will be removed in R15A); use the re module instead
>
> The lines are:
>            {ok, Class} = regexp:split(Class0, "[ ]*,[ ]*"),
> and
>    {match,A}=regexp:matches(String,"\n"),
>
> I thought "[ ]*,[ ]*" would mean:
> the character class of " " (space), 0 or many times, followed by literal
> "," followed by the character class of " " (space), 0 or many times.
>
> This is not the case and I am not having any luck with randomly
> constructing strings to find one that triggers a Class that is different
> from Class0.
>
> Perhaps someone knows what "[ ]*,[ ]*" really means, and what to replace
> these with when using the re module.
>
>
> bengt
>
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-- 
Best Regards,
- Ahmed Omar
http://nl.linkedin.com/in/adiaa
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