yes, regex is too much to hold in your head. I use BBEDIT and their
grep reference to refresh myself, and run tests, works well. And then
hit google when I need to go beyond that.
--
Robert Garcia
President - BigHead Technology
VP Application Development - eventpix.com
13653 West Park Dr
Magalia, Ca 95954
ph: 530.645.4040 x222 fax: 530.645.4040
[EMAIL PROTECTED] - [EMAIL PROTECTED]
http://bighead.net/ - http://eventpix.com/
On May 15, 2007, at 5:56 PM, Jesse Parker wrote:
BTW, I was scratching my head about this, and had to hit the books.
There is special handling for '-' inside [^...] expressions. The
'-' has to
be first or last. Here's a test using Unix grep - which implements
the same
POSIX REs as Witango:
[EMAIL PROTECTED]:~$ echo -e "ABCabc123\/:-.\nABCabc123\/:-. ?+=*"
ABCabc123\/:-.
ABCabc123\/:-. ?+=*
[EMAIL PROTECTED]:~$ echo -e "ABCabc123\/:-.\nABCabc123\/:-. ?+=*" |
grep -E
"[^A-Za-z0-9\/:-.]"
ABCabc123\/:-.
ABCabc123\/:-. ?+=*
[EMAIL PROTECTED]:~$ echo -e "ABCabc123\/:-.\nABCabc123\/:-. ?+=*" |
grep -E
"[^-A-Za-z0-9\/:.]"
ABCabc123\/:-. ?+=*
[EMAIL PROTECTED]:~$ echo -e "ABCabc123\/:-.\nABCabc123\/:-. ?+=*" |
grep -E
"[^A-Za-z0-9\/:.-]"
ABCabc123\/:-. ?+=*
[EMAIL PROTECTED]:~$
Everything you ever wanted to know about POSIX REs (and more):
http://www.tin.org/bin/man.cgi?section=7&topic=regex
-----Original Message-----
From: Wayne Irvine [mailto:[EMAIL PROTECTED]
Sent: Monday, May 14, 2007 9:28 PM
To: [email protected]
Subject: Re: Witango-Talk: REGEX question
Jesse Parker at [EMAIL PROTECTED] wrote:
I think <@KEEP> would be an easier way to do this.
<@IFEQUAL @@local$string <@KEEP @@local$string
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789">>
No non-alphanumeric characters
</@IF>
I'm currently using the above as it is not as simple as just allowing
alphanumerics. Some other characters are allowed and I won't be
surprised if
more spring up in the future.
This way if & becomes acceptable I can just add it to the keep
statement.
EXPR="[^A-Za-z0-9\\/:\-\.]"
But I might also have a play around with this for the sake of
learning.
Thanks guys,
Wayne Irvine
Byte Services Pty Ltd
http://www.byteserve.com.au/
[EMAIL PROTECTED]
Ph 02 9960 6099 Mob 0409 960 609 Fax 02 9960 6088
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