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authorKarl Berry <karl@gnu.org>1998-04-01 00:33:30 +0000
committerKarl Berry <karl@gnu.org>1998-04-01 00:33:30 +0000
commit2fcce1d3b0b0a5781a63b2ceb2f7729c0623b7ba (patch)
treefd45cb581371d473daae9c3f55d659c11b8c9d19 /texinfo.tex
parent1290679bc372f82f0c9892fed2c85a9c3e390265 (diff)
downloadgunmake-2fcce1d3b0b0a5781a63b2ceb2f7729c0623b7ba.tar.gz
(\doignore): Ignore everything after `c', so @end ifinfo and the like
can be commented out. (\macrocsname): New macro. Reported by: "James A. Lupo" <lupoja@feynman.ml.wpafb.af.mil>
Diffstat (limited to 'texinfo.tex')
-rw-r--r--texinfo.tex25
1 files changed, 23 insertions, 2 deletions
diff --git a/texinfo.tex b/texinfo.tex
index 1701ae1..56167d6 100644
--- a/texinfo.tex
+++ b/texinfo.tex
@@ -25,8 +25,10 @@
%
% Please try the latest version of texinfo.tex before submitting bug
% reports; you can get the latest version from:
-% ftp://ftp.cs.umb.edu/pub/tex/texinfo.tex
% /home/gd/gnu/doc/texinfo.tex on the GNU machines.
+% ftp://tug.org/tex/texinfo.tex
+% ftp://ctan.org/macros/texinfo/texinfo.tex
+% (and all CTAN mirrors, finger info@ctan.org for a list).
%
% Send bug reports to bug-texinfo@gnu.org.
% Please include a precise test case in each bug report,
@@ -772,6 +774,7 @@ where each line of input produces a line of output.}
% Also ignore @macro ... @end macro. The user must run texi2dvi,
% which runs makeinfo to do macro expansion. Ignore @unmacro, too.
\def\macro{\doignore{macro}}
+\def\macrocsname{macro}
\let\unmacro = \comment
@@ -786,7 +789,9 @@ where each line of input produces a line of output.}
\ignoresections
%
% Define a command to swallow text until we reach `@end #1'.
- \long\def\doignoretext##1\end #1{\enddoignore}%
+ % This @ is a catcode 12 token (that is the normal catcode of @ in
+ % this texinfo.tex file). We change the catcode of @ below to match.
+ \long\def\doignoretext##1@end #1{\enddoignore}%
%
% Make sure that spaces turn into tokens that match what \doignoretext wants.
\catcode32 = 10
@@ -795,6 +800,22 @@ where each line of input produces a line of output.}
\catcode`\{ = 9
\catcode`\} = 9
%
+ % We must not have @c interpreted as a control sequence.
+ \catcode`\@ = 12
+ %
+ % Make the letter c a comment character so that the rest of the line
+ % will be ignored. This way, the document can have (for example)
+ % @c @end ifinfo
+ % and the @end ifinfo will be properly ignored.
+ % (We've just changed @ to catcode 12.)
+ %
+ % But we can't do this if #1 is `macro', since that actually contains a c.
+ % Happily, none of the other conditionals have the letter `c' in their names!
+ \def\temp{#1}%
+ \ifx\temp\macrocsname \else
+ \catcode`\c = 14
+ \fi
+ %
% And now expand that command.
\doignoretext
}