Re: Find duplicate numbers and replace
Re: Find duplicate numbers and replace
- Subject: Re: Find duplicate numbers and replace
- From: "Mark J. Reed" <email@hidden>
- Date: Wed, 14 May 2008 16:55:20 -0400
Right. I was assuming we didn't care if it was a line start or not.
There's no ^ in my regex...
On 5/14/08, Skeeve <email@hidden> wrote:
> Mark J. Reed schrieb:
>> If you just add /g to your s//, it shouldn't matter what the line
>> endings are... The example file had all the matching numbers at the
>> beginning of a line, but that doesn't affect the logic of the solution
>> if you do a global search.
> Not quite. If we want to make sure it's a line start we have to anchor
> using ^. But then we'll have to add "m" to the "g" and still won't get
> every platform. If you let this run:
> perl -e '
> my %eols= (
> CR_OLD_MAC => "\015",
> LF_UNIX => "\012",
> CRLF_DOS => "\015\012",
> LFCR_OBSCURE => "\012\015",
> );
> while (my($n,$eol)=each %eols) {
> print $n,"\n";
> $_= join($eol,1..6);
> print join("\n",/^(\d+)/gm),"\n\n";
> }
> '
>
> You'll quickly see what I mean:
>
> LFCR_OBSCURE
> 1
>
> CR_OLD_MAC
> 1
>
> LF_UNIX
> 1
> 2
> 3
> 4
> 5
> 6
>
> CRLF_DOS
> 1
> 2
> 3
> 4
> 5
> 6
>
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