R help - Jun 2008 - gsub and multiple replacements

Hi,

I would like to replace "AAAAA BBBBB" by "AAAAA-BBBBB" and
"AAAAAA(DD)" by
"AAAAAA" using a single gsub. Is that possible besides using two gsub
?

Thanks
Stanley

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On 02.06.2008, at 17:27, Ng Stanley wrote:
> I would like to replace "AAAAA BBBBB" by "AAAAA-BBBBB"
and "AAAAAA
> (DD)" by
> "AAAAAA" using a single gsub. Is that possible besides using two
> gsub ?
>
Could you be a bit more precisely?

If you are dealing with two fix strings then you can write

ifelse(theString == "AAAAA BBBBB", "AAAAA-BBBBB",
"AAAAAA")

if not, one could find a regexp to solve that problem, but one could  
also use gsub in a cascade:

gsub('regexp1', 'replace1', gsub('regexp2',
'replace2', theString) )
etc.

--Hans