[CS-FSLUG] regexp help

[Eduardo Sanchez]

People, I'm stuck in a rut, and I need the help of the regexp wizards 
here.

I have some strings as follows:

wordA-wordB

That is, two words (or numbers, or practically any ASCII char) joined by 
a hyphen.

What I would need to do is to perform a search and replace so that the 
above string is changed to:

wordA--wordB

that is, I need to search instances of a single hyphen and replace it 
with a double hyphen. I know there's some regexps I could use, but now 
I'm stuck and I don't know even where to begin.

Any help will be greatly appreciated.

Thanks in advance,


Eduardo

-- 
Prof. Eduardo Sanchez
Asuncion, Paraguay, South America
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 For "Is" and "Is-not" though with Rule and Line
 And "UP-AND-DOWN" by Logic I define,
   Of all that one should care to fathom, I
 was never deep in anything but--Wine.

 -- The Rubaiyat of Omar Khayyam
    

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