regex question....

[Gary Kline]

On Sat, Dec 04, 2010 at 05:56:59PM -0800, perryh at pluto.rain.com wrote:
> Joshua Gimer <jgimer at gmail.com> wrote:
> 
> > On Sat, Dec 4, 2010 at 5:26 PM, Gary Kline <kline at thought.org> wrote:
> > > I have tried :1,$/s/[0-9]][0-9][0-9]/foo/g
> > Why not just %s/[0-9]*/foo/g
> 
> Too broad -- it will match the null string.  (* means "zero or more
> instances of" whatever preceded it.)
> 
> Best RE I know for integers is
> 
>   [1-9][0-9]*
> 
> (or replace the 1 with a 0 if the strings in question might have
> leading zeros).


	YES, and Perry get an A+; the numbers do start with 1; no
	leading 0's.

	FWIW, the last time I Did this I was editina t text with almost
	500 pages and didn't know that the "*" trick applied to the
	vi/vim world, so it saved me some typing.  Thanks, gents.

	gary said before getting into  the real work.  HMMm, no, first
	need a cup of joe........


-- 
 Gary Kline  kline at thought.org  http://www.thought.org  Public Service Unix
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