colon and pattern matching

[Deskin, Bob]

Actually, the reserved metacharacters list is for future metacharacters. The
original list of reserved metacharacters (PowerHouse 5.01) had the colon and
underscore. At some point, OpenVMS (and only OpenVMS) used the colon for
Kanji matching. The underscore dropped from the reserved list as well, but I
can't find any documentation as to what it's used for. For 8.xx, it's back
to the original.

Bob Deskin              
PowerHouse Web Product Manager and Senior Product Advisor
Application Development Tools, Cognos Inc.
bob.deskin@cognos.com (613) 738-1338 ext 7268 FAX: (613) 727-1178
3755 Riverside Drive P.O. Box 9707 Stn. T, Ottawa ON K1G 4K9 CANADA


-----Original Message-----
From: Bill D Michael [mailto:Bill.Michael@ipaper.com]
Sent: March 1, 2000 1:03 PM
To: Deskin, Bob
Cc: powerh-l@lists.swau.edu
Subject: RE: colon and pattern matching


VMS - Going from 7.10 to 8.10, had to change the PATTERN RESERVED line in
our
PDL, change "[]=;&" to "[]:=;_&". (Added the : and the _.) So it WASN'T in
7.10
VMS.   ????

Bill





"Deskin, Bob" <Bob.Deskin@Cognos.COM> on 03/01/2000 11:23:53 AM


To:   "'Powerhouse List'" <powerh-l@lists.swau.edu>
cc:    (bcc: Bill D Michael/Dallas/IPAPER)
Subject:  RE: colon and pattern matching




Looks like the colon is being used as a metacharacter at the PH 8 level. I
did two tests in QUIZ:

DEFINE A CHAR*4 = "YES" IF MATCHPATTERN(":","!:")
DEFINE B CHAR*4 = "YES" IF MATCHPATTERN(":","\:")

and got YES to both. According to development it's not matching anything and
is just reserved. I expect that at the 8 level it was reserved because it
was used on OpenVMS 7.10.

Bob Deskin
PowerHouse Web Product Manager and Senior Product Advisor
Application Development Tools, Cognos Inc.
bob.deskin@cognos.com (613) 738-1338 ext 7268 FAX: (613) 727-1178
3755 Riverside Drive P.O. Box 9707 Stn. T, Ottawa ON K1G 4K9 CANADA

-----Original Message-----
From: Pickering, John (NORBORD) [mailto:PICKERIJ@norbord.com]
Sent: February 29, 2000 5:21 PM
To: 'Powerhouse List'; 'Darren Reely'
Subject: RE: colon and pattern matching



>On Solaris 2.6, PH 813.D1 the following is true.
>matchpattern("ABC:DEF","^^^!:^^^")
>
>Note the use of the exclamation mark.
>
>Darren

Ditto for 8.19. Which implies that PH is treating it as a metacharacter. So
what does it mean by itself?


>"Pickering, John (NORBORD)" wrote:
>>
>> What does the colon mean in pattern matching?
>>
>> In my manual it is not in the list of non-alpha and non-numeric special
>> characters which match themselves, it is not in the list of defined
>> metacharacters and it is not in the list of metacharacters reserved for
>> future expansion.
>>
>> And matchpattern("ABC:DEF","^^^:^^^") is false :-(
>>
>> John Pickering
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