What tool can I use to substitute marked expressions in a string?

I know that there are several related tools in this area, but I'm not sure from a superficial look exactly which one I need. I just need to have a string with occurrences of substrings like ${foo}, and I need to be able to replace that with a value specified at run time. I need to do this

Re: What tool can I use to substitute marked expressions in a string?

On 2/28/07, Karr, David [EMAIL PROTECTED] wrote: I know that there are several related tools in this area, but I'm not sure from a superficial look exactly which one I need. I just need to have a string with occurrences of substrings like ${foo}, and I need to be able to replace that with a

RE: What tool can I use to substitute marked expressions in a string?

That worked perfectly. Thanks, Craig. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Craig McClanahan Sent: Wednesday, February 28, 2007 4:36 PM To: Jakarta Commons Users List Subject: Re: What tool can I use to substitute marked expressions