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let int = ?([' ' '\t'] '-') digits+
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Date: -- (:)
From: Jon Harrop <jon@f...>
Subject: Re: [Caml-list] let int = ?([' ' '\t'] '-') digits+
On Friday 29 June 2007 16:56:45 Robert C Fischer wrote:
> How would I write f - 1 to mean "one less than the value of f"?

As:

  f - 1

The space before the digit means that it will not match this regexp.

Or:

  f-1

The lack of a space before the "-" means that it will not match this regexp.

-- 
Dr Jon D Harrop, Flying Frog Consultancy Ltd.
The OCaml Journal
http://www.ffconsultancy.com/products/ocaml_journal/?e