@c Generator: GNU source-highlight, by Lorenzo Bettini, http://www.gnu.org/software/src-highlite
@example
@b{vardef} @t{@i{SPECIALCHAR}} = @t{'\\.'}

@b{environment} @t{@i{string}} @b{delim} @t{"\""} @t{"\""} @b{begin}
  @t{@i{specialchar}} = @t{@i{$SPECIALCHAR}}
@b{end}

@b{environment} @t{@i{string}} @b{delim} @t{"'"} @t{"'"} @b{begin}
  @t{@i{specialchar}} = @t{@i{$SPECIALCHAR}}
@b{end}

@end example