Possible Duplicate:
Multi-line (block) comments in LaTeX
Is it possible to comment out a whole block in LaTeX source?
For example, like in Java:
// This is an in-line comment.
/*
This
is a
block
comment.
*/
Is there anything like that in TeX?
% This is an in-line comment.
% But how to avoid commenting out
% every
% single
% line?
For example with using something like that /% ... %/ ?