Re: Fw: RegExp I give up

[Terrence Enger <tenger@xxxxxxxxxxxxxxxx>]

Thank you for the link, Aaron.  I promise not to lose it this time
<grin />.

Terry.

On Wed, 2009-07-22 at 17:25 -0500, Aaron Albertson wrote:
> My apologies, I just signed up for this list, so I can't preserve the
> continuity of the thread.
>
> The ILE C Runtime on IBM i follows the XBD specification for regular
> expressions, defined here:
> http://www.opengroup.org/onlinepubs/007908799/xbd/re.html
>
> The problem with your regular expression is the use of the '\w' and '\W'
> specifiers.  These specifiers do not exist in the XBD regular expression
> specification.  If these specifiers are used like they are in PERL, '\w'
> means any word character, and '\W' means any non-word character, so '[\w
> \W]' would be equivalent to '.'.  Alternatively you could use the character
> class expressions (like [:alpha:] which would match any alphabetic
> character).  Here are two adaptations of your expression that would work on
> IBM i:
>
> "^(MDB)[-[:alpha:][:blank:]]*(Final.PDF|Final.pdf)$"
> "^(MDB).*(Final.PDF|Final.pdf)$"
>
> I hope that helps.
>
> Aaron Albertson
> IBM   Rochester, MN 55901
>
>                                                                            
>              Terrence Enger                                                
>              <tenger@iseries-g                                             
>              uru.com>                                                   To 
>              Sent by:                  C programming iSeries / AS400       
>              c400-l-bounces            <c400-l@xxxxxxxxxxxx>               
>              +sphanson=us.ibm.                                          cc 
>              com@xxxxxxxxxxxx                                              
>                                                                    Subject 
>                                        Re: [C400-L] RegExp I give up       
>              07/22/2009 01:34                                              
>              PM                                                            
>                                                                            
>                                                                            
>              Please respond to                                             
>                C programming                                               
>               iSeries / AS400                                              
>              <c400-l@midrange.                                             
>                    com>                                                    
>                                                                            
>                                                                            
>
>
>
>
> On Wed, 2009-07-22 at 08:04 -0700, Spencer Elliott wrote:
> > Hi,
> > I have the following regular expression:
> > ^(MDB)[\w\W]*(Final.PDF|Final.pdf)$
>
> I am familiar with \w as shorthand for [_A-Za-z0-9] and the web site you
> cite below accepts space or hyphen and I know not what else for \W.
> Anyway, the expression
>     [-A-Za-z0-9_ ]+
> matches the middle part of your test input.
>
> > This expression test as true against the following string:
> > MDB MO3-09 Final.PDF
> > at http://www.regular-expressions.info/javascriptexample.html
> >
> > I run the same expression and string through the iSeries RegExp APIs and
> > it fails(returns 1).
> >
> > Does anyone have any idea where there is a online test that matches the
> > IBM APIs or can figure out what I am doing incorrectly?
>
> Even a quick reference guide to the details on the iSeries would be a
> help.  I am sure I am just overlooking it, but it is frustrating to be
> reduced to experimentation.
>
> Cheers,
> Terry.
>
> > BTW: The OCEAN conference was great!
> >
> > My program works with another expression to test email addresses.
> > ^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,6}$
> >
> > Thanks,
> > Spencer
> >
> >
> > ---snip---
> > /*---( Compile pattern )---*/
> > rc = regcomp(&preg, wrkPattern, REG_EXTENDED);
> > if (rc != 0) {
> >     regerror(rc, &preg, errMsg, sizeof(errMsg));
> >     PatError(100, (char *) pattern, (char *) errMsg);
> >
> >     regfree(&preg);
> >
> >     if (matchString != inpString) {
> >        free((void *) matchString);
> >        matchString = NULL;
> >     }
> >     return (0);
> > }
> >
> > /*---( Run Pattern )---*/
> > if ( (rc = regexec(&preg, matchString, nmatch, pmatch, 0)) != 0 ) {
> >     regerror(rc, &preg, errMsg, sizeof(errMsg));
> > ---snip---
>
> --
> This is the C programming iSeries / AS400 (C400-L) mailing list
> To post a message email: C400-L@xxxxxxxxxxxx
> To subscribe, unsubscribe, or change list options,
> visit: http://lists.midrange.com/mailman/listinfo/c400-l
> or email: C400-L-request@xxxxxxxxxxxx
> Before posting, please take a moment to review the archives
> at http://archive.midrange.com/c400-l.