views:

115

answers:

2

Hello, I want to use regexps in OCaml and it seems that Str module provides these functionalities.

So I tried with a simple program:

open Str
let regx = regexp "."

but it gives me the following error

File "lol.ml", line 1, characters 0-1: Error: Error while linking lol.cmo: Reference to undefined global `Str'

As if module is not present but if I remove open Str it says that regexp is an unbound value.

I don't get what kind of issue it is, Str should be a standard module (according to http://caml.inria.fr/pub/docs/old-311/libref/Str.html) so I'm clueless.. the only think I thought is that signature (mli) is present but implementation (ml) is not.

I'm running Objective Caml version 3.11.0 according to ocaml tool.

Can anyone help me figuring this out? Thanks in advance

+5  A: 

From the manual:

Programs that use the str library must be linked as follows:

ocamlc other options str.cma other files
ocamlopt other options str.cmxa other files
sepp2k
Thanks, I didn't know that issue!
Jack
+4  A: 

Or you can put

#load "str.cma";;

if you are doing it in the interpreter

newacct
Thanks, this will be useful while trying from toplevel
Jack