I would like to have some variables for showing or hiding text in Latex.

For example, I would like to have two versions of a document. A short version and a long version by changing a variable at the top of the latex document.

For example:

I want to set a variable long - true

and in the text I would like to use if long == true show text (long version) else if false do not show the text (short version).

Any examples?

  • 3
    You might like the tagging package, wich was created by one of our users (Brent Longborough), also have a look at this question. – Tom Bombadil Jun 5 '12 at 11:12
  • 2
    use the package comment. It allows to handle different parts of the document. You'll get the documentation with texdoc comment – user2478 Jun 5 '12 at 11:23


  \iflong \lipsum[1] \else short version \fi 

  \iflong \lipsum[1] \else short version \fi 

With ifthen



\ifthenelse{\boolean{long}}{long version}{short version} 

\ifthenelse{\boolean{long}}{long version}{short version}  

I second Herbert on using the comment package. :) Here's a possible solution with etoolbox and \iftoggle{<name>}{<true>}{<false>}:





\iftoggle{long}{Overhead the albatross hangs motionless upon the air.}%
{And deep beneath the rolling waves in labyrinths of coral caves.}


There's also \nottoggle{<name>}{<not true>}{<not false>} which negates the test.

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