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-rw-r--r--Master/texmf-dist/tex/generic/pgf/utilities/pgffor.code.tex19
1 files changed, 13 insertions, 6 deletions
diff --git a/Master/texmf-dist/tex/generic/pgf/utilities/pgffor.code.tex b/Master/texmf-dist/tex/generic/pgf/utilities/pgffor.code.tex
index 6d381dcbdec..86b4106af18 100644
--- a/Master/texmf-dist/tex/generic/pgf/utilities/pgffor.code.tex
+++ b/Master/texmf-dist/tex/generic/pgf/utilities/pgffor.code.tex
@@ -1,11 +1,13 @@
-\ProvidesPackageRCS[v\pgfversion] $Header: /cvsroot/pgf/pgf/generic/pgf/utilities/pgffor.code.tex,v 1.2 2005/07/06 15:58:58 tantau Exp $
-
-% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+% Copyright 2006 by Till Tantau
%
-% This program can be redistributed and/or modified under the terms
-% of the GNU Public License, version 2.
-
+% This file may be distributed and/or modified
+%
+% 1. under the LaTeX Project Public License and/or
+% 2. under the GNU Public License.
+%
+% See the file doc/generic/pgf/licenses/LICENSE for more details.
+\ProvidesPackageRCS[v\pgfversion] $Header: /cvsroot/pgf/pgf/generic/pgf/utilities/pgffor.code.tex,v 1.4 2006/10/11 15:22:26 tantau Exp $
\newdimen\pgffor@iter
\newdimen\pgffor@skip
@@ -15,9 +17,14 @@
\let\pgffor@endhook=\@empty
\let\pgffor@afterhook=\@empty
+\def\pgffor@emptyvalues{, \pgffor@stop,}%
+
\def\foreach#1in#2{%
\def\pgffor@var{#1}%
\def\pgffor@values{#2, \pgffor@stop,}%
+ \ifx\pgffor@values\pgffor@emptyvalues
+ \def\pgffor@values{\pgffor@stop,}%
+ \fi%
\let\pgffor@body\@empty%
\global\pgffor@continuetrue%
\pgffor@collectbody}