ocaml-batteries-team/batteries-included — pull request #569 by nukiFW (2014-05-15 17:26:23+00:00)
Title: batSubstring : Added a lot of test + fix explode, tokens, fields and cha...

I have fix some little bugs (on explode, tokens and fields, little index mistakes)
And in span function, I have change 'str1 != str2' by 'str1 <> str2' to enable (span (substring "foobar" 0 3) (substrinf "foobar" 3 3)) but I have no idea if it is a gode idea.