PureBasic Forums - English

Posted: **Mon Oct 04, 2004 2:14 pm**

see here... viewtopic.php?p=70899#70899

regular expressions to use on strings would be nice...

Posted: **Mon Oct 04, 2004 2:40 pm**

Posted: **Mon Oct 04, 2004 3:34 pm**

could somebody please explain to me what RegExp is?

I've heard some talk about it lately and to be honest I'm feelin' a bit out of the loop

Posted: **Mon Oct 04, 2004 4:46 pm**

know a little dos?

it's like using wildcards, patterns and the like, only more flexible aka. more complex

Posted: **Mon Oct 04, 2004 4:56 pm**

Ohhh... got it

I coded one of those for Rapid-Q a while back... I wonder if I still have it!

Posted: **Mon Oct 04, 2004 5:01 pm**

PolyVector wrote:could somebody please explain to me what RegExp is? I've heard some talk about it lately and to be honest I'm feelin' a bit out of the loop

http://etext.lib.virginia.edu/helpsheets/regex.html

Regular Expresions are extremely useful for checking and/or replacing strings. Very quick too.

Posted: **Tue Oct 05, 2004 7:08 pm**

Kale wrote:
PolyVector wrote:could somebody please explain to me what RegExp is? I've heard some talk about it lately and to be honest I'm feelin' a bit out of the loop
http://etext.lib.virginia.edu/helpsheets/regex.html
Regular Expresions are extremely useful for checking and/or replacing strings. Very quick too.

I don't know if I would call them very quick. They are adequate for working with small strings and parameter lists, but I have found them quite unsatisfactory working with large strings.

Another similar product I have used is "AWK", but still, nothing beats a well written piece of code.

Posted: **Wed Oct 06, 2004 8:11 am**

I guess i meant very quick to input complicated search patterns. i.e. checking an email address is easy

Posted: **Tue Nov 09, 2004 11:00 am**

Yeahh!!!

regexp would be so cool!!!

/<(\w+)[^>]*>[^<]*<\/\1>/ig

Posted: **Wed Nov 10, 2004 5:06 pm**

*loses his lunch*

Posted: **Fri Nov 12, 2004 2:19 am**

Regular Expressions are a must for a X-Platform Language (that includes Unix/Linux). Its true that ReExprs are fairly painful to learn - but believe me if you come from the Unix/Linux Scripting world and take RegExpr for granted with SED / AWK / GREP etc. Its a hard painful world without them. Seriously, 10 chars of RegExpr = 100 lines of code in any regular language.

Ok - perhaps a slight exaggeration, but those who use it know what I mean.

Such a shame that PB lacks RE & STDIN

Please Fred STDIN would take you a couple of hours to code

and you could bolt in a *standard* RE Library, I'm sure....

Posted: **Sat Nov 13, 2004 8:21 pm**

stdin / stdout yes please...

Posted: **Thu Dec 09, 2004 12:09 am**

Yes, regular expressions please! Also, STDIN/STDOUT please!

The PBRegExpEx lib by FloHimself is a great help. But I had to work for a while to get my head around the syntax and build my own procedures to make its implementation a little easier for me. It reminds me somewhat of PCRE, which I used once in a C++ app. I'm sure part of the reason for the time it took was because I'm new to PureBasic. No global or case-insensitive functionality. But, I'm certainly glad FloHimself has provided it. I'm a regular expression junkie

Posted: **Mon Dec 13, 2004 2:41 pm**

I would appreciate a RegExp-implication, too!

Posted: **Thu Dec 16, 2004 4:41 am**

Just wanted to correct my previous statement that with PBRegExpEx there is 'no... case-insensitive functionality'. There is, in fact, control over case sensitivity when searching with the meta characters \u (upper case) and \l (lower case). Guess I hadn't read the Help file carefully enough. <grimace> So, while I prefer Perl's syntax of "/[a-z]+/i" I can get the results I need using PBRegExpEx with "(/u|/l)+". Of course, in this case, I'd have the possible overhead of an unneeded backreference or subexpression.

Anyway, just thought I'd clarify, in case anyone cares...

Paul H.

PureBasic Forums - English

[Implemented] RegExp

[Implemented] RegExp