Date:         Tue, 9 Mar 2010 12:29:20 -0600
Reply-To:     Kevin Myers <KevinMyers@AUSTIN.RR.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Kevin Myers <KevinMyers@AUSTIN.RR.COM>
Subject:      Re: Using PROC FCMP Functions with %SYSFUNC
Comments: To: "Data _null_;" <iebupdte@gmail.com>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
              reply-type=original

Null -

Those suggestions are helpful, thanks.

FINDC allows the negative start value supported by my xIndexC function, but
does not support the occurance number, and doesn't support the "q" modfier
(as supported by the SCAN function) that would be needed to avoid searching
within quoted values.

Modifying my existing code to use regular expressions would take quite a bit
of time, but may be possible.

xIndexC gets used in my code primarily as a utility within other functions
that are performing various string searches and manipulations.  I may be
able to make additional changes to the calling functions that would allow
for replacing xIndexc with code based on FINDC and SCAN.  That will also
take some time, but presently seems like my best option.

I'll look into these further...

Regards,
s/KAM


----- Original Message -----
From: "Data _null_;" <iebupdte@gmail.com>
To: "Kevin Myers" <KevinMyers@austin.rr.com>
Cc: <SAS-L@listserv.uga.edu>
Sent: Tuesday, March 09, 2010 12:03
Subject: Re: Using PROC FCMP Functions with %SYSFUNC


> Does FINDC provide any of the features you describe for your XINDEXC?
>
> Do the new features of the SCAN functions and call routine provide any
> further help?
>
> What about regex?
>
>
>
> On 3/9/10, Kevin Myers <KevinMyers@austin.rr.com> wrote:
>> P.S. - I also wrote an xSubstr macro to eliminate the need for using my
>> xSubstr fuction via %sysfunc, but xIndexc (similar to indexc, except that
>> it
>> ignores quoted and parenthesized values and also handles negative start
>> values and counts) is not so easily replaced...
>