Emmitt, Sammi and Dennis,
Once again, thank you very much for your insight. It is very helpful!
Stuart J. Cohen, Ph.D.
Major, Medical Service Corps
Research Specialist
Walter Reed Army Medical Center
National Disaster Medical System Federal Coordinating Center
Phone: 202-782-3636
Cell: 301-514-3975
Fax: 202-782-4360
E-mail: [EMAIL PROTECTED]
Emmitt Dove wrote:
Dennis,
That one deserves emphasis -- do not use GOTO to jump /into/ a construct.
On the other hand, a LABEL xxx with a GOTO xxx that exists inside an
IF/ENDIF works fine.
Emmitt Dove
Manager, DairyPak Business Systems
Evergreen Packaging, Inc.
[EMAIL PROTECTED]
[EMAIL PROTECTED]
(203) 643-8022
*From:* [email protected] [mailto:[EMAIL PROTECTED] *On Behalf Of
*Dennis McGrath
*Sent:* Tuesday, January 22, 2008 3:03 PM
*To:* RBASE-L Mailing List
*Subject:* [RBASE-L] - RE: Two eyes are not good enough
If RSTYLE complains, you'd better code it different.
If it does not complain, you are more likely to be successful.
You do not want to exit a Switch/EndSw or a While/EndW with a goto
If statements are just simple flow control constructs.
You can goto OUT of them all you want.
I would try to avoid gotoing INTO an if/endif block just because it is
poor form and may cause you some logical headaches.
Dennis McGrath
------------------------------------------------------------------------
*From:* [email protected] [mailto:[EMAIL PROTECTED] *On Behalf Of
*Stuart Cohen
*Sent:* Tuesday, January 22, 2008 1:42 PM
*To:* RBASE-L Mailing List
*Subject:* [RBASE-L] - RE: Two eyes are not good enough
Emmitt, Sami and Alastair:
I very much appreciate your comments regarding GOTO commands within
SWITCH blocks. During the long weekend, I was pondering over your
comments regarding why GOTO commands could be a problem within SWITCH
blocks, especially since I have not had a problem with this
situation.........yet. Then it dawned on me! The GOTO statement
would skip over the BREAK and ENDSW statements and can thus confuse
the computer which is looking for these statements to close the
block. It also dawned on me that IF blocks have corresponding ENDIF
statements to close them and (though I have never put a GOTO command
in one) WHILE loops have corresponding ENDWHILE commands to close
them. Does this mean that a programmer should not put GOTO statements
within IF Blocks and WHILE loops?
Once again, thank you very much!
Stuart J. Cohen, Ph.D.
Major, Medical Service Corps
Research Specialist
Walter Reed Army Medical Center
National Disaster Medical System Federal Coordinating Center
Phone: 202-782-3636
Cell: 301-514-3975
Fax: 202-782-4360
E-mail: [EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>
Emmitt Dove wrote:
Stuart,
To pick up on Albert and Sami's observations about the GOTO from a
switch block, here is how I handle that:
SET VAR vlabel TEXT = 'somelabel'
SWITCH (.vwhatever)
CASE 1
{ Some condition exists }
SET VAR vlabel = 'thisotherlabel'
BREAK
CASE 2
{a different condition exists}
SET VAR vlabel = 'yetanotherlabel'
DEFAULT
BREAK
ENDSW
GOTO &vlabel
Emmitt Dove
Manager, DairyPak Business Systems
Blue Ridge Paper Products, Inc.
[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
(203) 643-8022
Sami Aaron wrote:
Stuart --
I see two possibilities:
"IF variable = NULL THEN" should be "IF variable IS NULL THEN"
Within a SWITCH block, you should issue "BREAK" instead of using "GOTO
TheEnd".. The break will drop the programming call down to the next
line after the ENDSW line.
Sami
____________________________
Sami Aaron
Software Management Specialists
913-915-1971
[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
Alastair Burr wrote:
I may be completely wrong but I thought that GOTOs in SWITCH
statements were something to be avoided. Maybe it's that which is not
working?
Regards,
Alastair.
