@c Generator: GNU source-highlight, by Lorenzo Bettini, http://www.gnu.org/software/src-highlite
@example
@b{environment} @t{@i{comment}} @b{start} @t{'^[[:blank:]]*#if[[:blank:]]+0'} @b{begin}
  @t{@i{comment}} @b{start} @t{'^[[:blank:]]*#(else|endif)'} @b{exit}
@b{end}

@b{include} @t{"cpp.lang"}

@end example