Re: experimenting with REGEX

Hi Mike,

You have to understand that there are many tools out there that refer to their expressions as "regular expressions". But there's no single standard for them.

In this case, the expressions you're looking at are for a .NET tool called "Expresso". (I'm not a .NET guy, and hadn't heard of this one before.)

The regcomp/regexec routines in the C runtime support POSIX basic and extended regular expressions, as described here:
http://en.wikipedia.org/wiki/Regular_Expressions

HTH


On 1/20/2012 1:12 PM, Smith, Mike wrote:

Well according to this
http://www.codeproject.com/KB/dotnet/regextutorial.aspx
it was supposed to look for a phone number.

But I'm going to try what you suggested.

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Scott Klement
Sent: Friday, January 20, 2012 2:08 PM
To: RPG programming on the IBM i / System i
Subject: Re: experimenting with REGEX

hi Mike,

What is ' \b\d\d\d-\d\d\d\d' supposed to do? I've never seen an RE that
looks like that before.

I would've expected an RE to look more like this:
'[0-9]*[ -_]*[0-9]*'



On 1/20/2012 12:56 PM, Smith, Mike wrote:

I am attempting to use a regex from rpg.
Ideally I want to create a regex to look for patterns of numbers, such as 9 consecutive numbers, or 999-99-9999, or 999 or 99999_9999 or 9999_99999
The separator can be anything.

To start testing I tried this (this was an example regex I found to look for a phone number). I have plenty of phone numbers in the file.

scpattern = ' \b\d\d\d-\d\d\d\d' ;

rc = regcomp(reg:
%trimr(scPattern):
REG_BASIC+REG_ICASE+REG_NOSUB) ;

Read record

rc = regexec(reg:
SCCOM:5:match:0)


if rc<> 0
callp regerror(rc: reg:
%addr(buf): %size(buf))
scMsg = %str(%addr(buf))
else
except det
endif

then loop and read next record

All I ever get for RC is 1 on my regexec
RC is 0 when on regcomp.


Any idea what I'm doing wrong?

Any idea how to make a regex for my scenario.?
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