[erlang-questions] guard sequence for string?

Samuel Rivas <>
Tue Jan 30 10:07:56 CET 2007


jm wrote:
> Is there a guard sequence to test if a supplied parameter is a ascii 
> string, ie, is_string, the same as there is is_integer? I check the docs 
> and am unable to find anything. I tried is_list() but this doesn't seem 
> to do what I want (it was a long shot). So what's the stardard approach 
> here?

Well, it is not as good as one would like, but you have
io_lib:char_list/1. Sadly, you cannot use it as a guard.

Regards
-- 
	Samuel



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