- Subject: Re: Jed Development
- From: Michele Dondi <bik.mido@xxxxxxxxxxxxx>
- Date: Sat, 18 Jan 2003 23:12:25 +0100
At 02.16 13/01/03 -0800, Josh Guilfoyle wrote:
> > * DFA syntax that can persist across lines. Also, regular
[...]
Not exactly. "^" and "$" is the best example of a zero-width assertion...ther
is no "beginning of line" character that can be matched but it is asserting
that it's there, thus it is a zero-width assertion. Perl regular expressions
provide an extremely flexible method of using your own assertions that can be
found through man perlre. A brief example would be:
As a side note, a minor point (maybe), but possibly relevant here: Perl's
regular expressions are not DFAs - see 'perldoc -q DFA'.
Michele
--
Liberta' va cercando, ch'e' si' cara,
Come sa chi per lei vita rifiuta.
[Dante Alighieri, Purg. I, 71-72]
I am my own country - United States Confederate of Me!
[Pennywise, "My own country"]
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