[OS X TeX] Embedding environment contents in a macro

[Ross Moore]

> Hi,
> 
> I'm told this is a great place to write and ask questions. I'd like to 
> define an environment, say env, that wraps its contents inside a macro. 
> Something like:
> ---------
> \newenvironment{env}{\macroname \bgroup \begin{ anotherenv } }
> { \end{anotherenv} \egroup}

This approach cannot work, since the \egroup to match the \bgroup
would never be seen -- it is wrapped-up inside the  \end{env} 
and there is nothing to cause this to be expanded while trying to
match the argument to the \macroname .

In fact what happens here is that the \bgroup token becomes
the argument to \macroname and  the {anotherenv}  environment
will *always* be processed ...

> ---------
> so that \begin{env} MANY PARAGRAPHS OF INFO \end{env{}  is the same as 
> \macroname{MANY PARAGRAPHS OF INFO}.
> 
> When I do this, I get
> ---------
> ! Extra }, or forgotten \endgroup.
> \env ->\end {anotherenv}\egroup
> 
> l.39 \end{env}

 ... so that the closing  \egroup  is totally redundant, not matching
anything at all.



> how I can do this? I have a similar set up where anotherenv is defined 

Have you tried  comment.sty  ?

> by newtheorem instead of newenvironment, and that works, but I don't see 
> how that's helpful.

Hmm; that may be a bit harder to achieve.
 
> The end goal is to have the macro display its contents if a flag is set, 
> or to execute other code if the flag is not set. If there is a better 
> way to do this, please let me know.

Have a look at the  comment.sty  package.
Your *flag* can be implemented as  \includecomment and/or  \excludecomment
calls, with the appropriate environment names.


Hope this helps,


	Ross Moore

 
> Thanks.
> 
> Michael
> 
> 
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