Zoltan,
Hi, you don't need a new syntax rule for that. I recommend to use
(*SKIP).
E.g: find a B if there is no A within 0..6 character before that. A
pcretest
example:
re> /A.{0,6}(*SKIP)(*FAIL)|B/
data> ABBBBBB
No match
data> ABBBBBBB
0: B
Now suppose the subject is a flat file containing lines with some
expected format, let's say for instance that lines must start with a
date in aaaa/mm/jj format.
It's dead simple to loop and list only lines which do follow the
expected format.
How would you make a pattern to extract lines that violate the format?
In my scripting language I only have access to a couple of wrapper
functions:
[1]
http://www.autoitscript.com/autoit3/docs/functions/StringRegExp.htm
and
[2]
http://www.autoitscript.com/autoit3/docs/functions/StringRegExpRepl
ace.htm
I can still replace every matching line by an empty string but I find
this workaround rather inelegant and difficult to use in less simple
situations.
--
[3]jcd@???
References
1.
http://www.autoitscript.com/autoit3/docs/functions/StringRegExp.htm
2.
http://www.autoitscript.com/autoit3/docs/functions/StringRegExpReplace.htm
3.
mailto:jcd@q-e-d.org
