Question

I have a presentation before my division director tomorrow on TWiki. To show how versatile it is, I decided to use TWiki to present itself. I am using the TWikiPlatformPresentation layout and I have added this:

% INCLUDE{"% SCRIPTURL%/view/% WEB%/% TOPIC% Comments% CALC{"T(R5:C5)"}%"}% 

(spaces put in after % to stop TWiki from interpreting the variables) to the bottom of the slide intending that the topic comment page associated with the slide gets included. However I am getting a wacky included topic being presented:

SlideShowPresentationCommentsÊLC

If I put:

% SCRIPTURL%/view/% WEB%/% TOPIC% Comments% CALC{"T(R5:C5)"}%

on the page just before the % INCLUDE the generated link is correct. I assume its some glitch in the include parser, but I am afraid I haven't been able to find out where.

Does anybody have any ideas on how this could work? I have looked at the search formatting items and tried $percnt, \" $quot etc to escape some of the things that may be confusing include, but to no avail.

• TWiki version: Alpha
• Web server: apache 1.3.2
• Server OS: linux 7.2 Red Hat
• Web browser: N/A
• Client OS: N/A

-- JohnRouillard - 21 Aug 2002

Answer

There are two problems. First, INCLUDE is evaluated before the Plugin callback to expand CALC, see TWiki::handleCommonTags(). Second, the INCLUDE parsing is non-greedy, e.g. stops at the closing tag of CLAC.

You could try to turn it around. Not tested, but something along the line

% CALC{"$CHAR(37)INCLUDE{$CHAR(34)$CHAR(37)TOPIC$CHAR(37)Comments$T(R5:C5)$CHAR(34)}$CHAR(37)"}%

The $CHAR(34) and $CHAR(37) is a trick to escape the include from happening too early. They resolve to double quote and percent, respectively.

-- PeterThoeny - 25 Aug 2002