On Tue, Nov 18, 2008 at 9:52 AM, howa <[EMAIL PROTECTED]> wrote:
> Hello,
>
> I have two strings:
>
> 1. abc
> 2. abc&
>
>
> The line of string might end with "&" or not, so I use the expression:
>
> (.*)[$&]
>
>
> Why it didn't work out?
>
>
> Thanks.
>
>
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>
>
>
This does not work because $ denotes the end of the string. So after $ there
is no more string, matching something at the end of the string you would do
by writting <something>$ so in your case: (.*)&$ (which will only match the
line with & in there. If you want to capture both lines you end up doing
somehting like this: (.*)&{0,1}$
Note: there are other ways to match both lines, just like perl it self
regular expressions quite often ofer more then one way to do the same thing.
Regards,
Rob
