Well, you can always just use the "C#" way of doing things:
open System.Text.RegularExpressions;;
let s = "this is a test";
let s2 = Regex.Replace(s,@"\s+",",");
s2;;
prints out "this,is,a,test".
etc.
You can use the Regex class in combination with active patterns to get a perl like effect. I detail how to do this towards the end of this article for InfoQ:
[link:www.infoq.com]
Also DevHawk has run a huge series on parsing, I think he looks at several types of lexing:
[link:devhawk.net]
Cheers,
Rob
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other post refers to Lexing which strikes me as too heavy handed . What I was wanting to do is something along the lines of <shhh>perl</shhh> pattern matching a string against a pattern /^\d+$/. I dont see anything in the pickering text that takes me there in a lightweight fashion.
corrections please