@z...@x
If a source or include file begins with ‘@z’ (in the very first
two characters of the file), then all material is skipped until and
including a line beginning in column 1 with ‘@x’ [except that
lines of the form ‘$Keyword: text of keyword $’ are processed; see
$KEYWORD
: Value of global RCS-like keyword, ‘@K’: Extract global RCS-like keyword (source files), or ‘@k’: Access local RCS-like keyword (include
files)].
@%
All material until and including the next newline is completely ignored.
@%%
As ‘@%’, but also skip blank lines that immediately follow the current line.
For example,
@z Author: J. A. Krommes @x @c @% This sets the global language to C. @* EXAMPLE.