Re: [Caml-list] pattern matching on strings

[Philippe Strauss <philou@philou.ch>]

It reminds me of the micmatch/mikmatch project(s), http://martin.jambon.free.fr/micmatch.html, but never used it, only remember reading the announce on the hump or this list.

Le 14 sept. 2011 à 22:16, Walter Cazzola a écrit :

> Hi all,
> I'm just trying to write a recursive function that iterates¹ on a string
> and I'd like to use pattern matching as in:
> 
> let rec iter f s =
>  match s with
>     | ""  -> unit;
>     | c^s1 -> f c; iter f s1;;
> 
> but the ^ concatenates 2 strings and not a char with a string and above
> all seems to be inadmissible in the patterns.
> 
> Does this mean that I can't write a function on strings by pattern
> matching or is there something I don't know?²
> 
> Thanks for the help
> Walter
> 
> ¹ I know that exists String.iter but I'd like to improve my skill in
>  writing functions by using pattern matching
> ² I read about micmatch but I'd like to avoid non standard packages.
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