From 22cbaf8cd711b82b3fe4b387a7e72b58409ecdbd Mon Sep 17 00:00:00 2001
From: Karl Berry <karl@freefriends.org>
Date: Sun, 12 May 2019 20:23:02 +0000
Subject: pgf

git-svn-id: svn://tug.org/texlive/trunk@51107 c570f23f-e606-0410-a88d-b1316a301751
---
 .../tex/generic/pgf/math/pgfmathutil.code.tex      | 172 ++++++++++-----------
 1 file changed, 86 insertions(+), 86 deletions(-)

(limited to 'Master/texmf-dist/tex/generic/pgf/math/pgfmathutil.code.tex')

diff --git a/Master/texmf-dist/tex/generic/pgf/math/pgfmathutil.code.tex b/Master/texmf-dist/tex/generic/pgf/math/pgfmathutil.code.tex
index 44d39c75b6a..d98ecb25d59 100644
--- a/Master/texmf-dist/tex/generic/pgf/math/pgfmathutil.code.tex
+++ b/Master/texmf-dist/tex/generic/pgf/math/pgfmathutil.code.tex
@@ -1,9 +1,9 @@
 % Copyright 2007 Mark Wibrow
 %
-% but subject to the LaTeX Project Public License 
+% but subject to the LaTeX Project Public License
 % (http://www.latex-project.org/lppl.txt)
 %
-% and the GNU Public License 
+% and the GNU Public License
 % (http://www.gnu.org/licenses/gpl.txt)
 %
 
@@ -21,30 +21,30 @@
 % #2 - a control sequence.
 %
 \def\pgfmath@ensureregister#1#2{%
-	\begingroup%
-	\setbox0=\hbox\bgroup\begingroup% In case #2 is a defined macro. Unlikely, but you never know...
-		\afterassignment\pgfmath@@ensureregister%
-		\noexpand#20.0pt\let\pgfmath@temp\relax\relax\pgfmath@#2#1\pgfmath@}
+    \begingroup%
+    \setbox0=\hbox\bgroup\begingroup% In case #2 is a defined macro. Unlikely, but you never know...
+        \afterassignment\pgfmath@@ensureregister%
+        \noexpand#20.0pt\let\pgfmath@temp\relax\relax\pgfmath@#2#1\pgfmath@}
 
 \def\pgfmath@@ensureregister#1#2\pgfmath@#3#4#5\pgfmath@{%
-		\endgroup\egroup%
-	\endgroup%
-	\ifx#4c% 
-		\ifx#1.% Already a count register.
-		\else%
-			\csname newcount\endcsname#3% This gets round \outer in plain TeX.
-		\fi%
-	\else%
-		\ifx#4d% 
-			\ifx\let#1% Already a dimen register.
-			\else%
-				\csname newdimen\endcsname#3%
-			\fi%
-		\fi%
-	\fi%
+        \endgroup\egroup%
+    \endgroup%
+    \ifx#4c%
+        \ifx#1.% Already a count register.
+        \else%
+            \csname newcount\endcsname#3% This gets round \outer in plain TeX.
+        \fi%
+    \else%
+        \ifx#4d%
+            \ifx\let#1% Already a dimen register.
+            \else%
+                \csname newdimen\endcsname#3%
+            \fi%
+        \fi%
+    \fi%
 }
 
-% Check registers exist. If not, create them. 
+% Check registers exist. If not, create them.
 %
 \pgfmath@ensureregister{dimen}{\pgf@x}
 \pgfmath@ensureregister{dimen}{\pgf@xa}
@@ -91,63 +91,63 @@
 \let\pgfmath@tempcntb\pgfutil@tempcntb
 
 % Now check if pgfutil and pgf@sys stuff exists. If it does, fine.
-% Just \let pgfmath versions. If not, define pgfmath versions (Arghhh). 
+% Just \let pgfmath versions. If not, define pgfmath versions (Arghhh).
 %
 
 % \...ifnextchar
 %
 \ifx\pgfutil@ifnextchar\pgfmath@undefined%
-	\long\def\pgfmath@ifnextchar#1#2#3{%
+    \long\def\pgfmath@ifnextchar#1#2#3{%
   \let\pgfmath@reserved@d#1%
   \def\pgfmath@reserved@a{#2}%
   \def\pgfmath@reserved@b{#3}%
   \futurelet\pgfmath@let@token\pgfmath@ifnch}
-	\def\pgfmath@ifnch{%
-	  \ifx\pgfmath@let@token\pgfmath@sptoken%
-	    \let\pgfmath@reserved@c\pgfmath@xifnch%
-	  \else%
-	    \ifx\pgfmath@let@token\pgfmath@reserved@d%
-	      \let\pgfmath@reserved@c\pgfmath@reserved@a%
-	    \else%
-	      \let\pgfmath@reserved@c\pgfmath@reserved@b%
-	    \fi%
-	  \fi%
-	  \pgfmath@reserved@c}
-	{%
-	  \def\:{\global\let\pgfmath@sptoken= } \:
-	  \def\:{\pgfmath@xifnch} \expandafter\gdef\: {\futurelet\pgfmath@let@token\pgfmath@ifnch}
-	}%
+    \def\pgfmath@ifnch{%
+      \ifx\pgfmath@let@token\pgfmath@sptoken%
+        \let\pgfmath@reserved@c\pgfmath@xifnch%
+      \else%
+        \ifx\pgfmath@let@token\pgfmath@reserved@d%
+          \let\pgfmath@reserved@c\pgfmath@reserved@a%
+        \else%
+          \let\pgfmath@reserved@c\pgfmath@reserved@b%
+        \fi%
+      \fi%
+      \pgfmath@reserved@c}
+    {%
+      \def\:{\global\let\pgfmath@sptoken= } \:
+      \def\:{\pgfmath@xifnch} \expandafter\gdef\: {\futurelet\pgfmath@let@token\pgfmath@ifnch}
+    }%
 \else%
-	\let\pgfmath@ifnextchar\pgfutil@ifnextchar%
-	% Still need to define \pgfmath@sptoken (cannot \let).
-	{%
-		\def\:{\global\let\pgfmath@sptoken= } \:
-	}%
+    \let\pgfmath@ifnextchar\pgfutil@ifnextchar%
+    % Still need to define \pgfmath@sptoken (cannot \let).
+    {%
+        \def\:{\global\let\pgfmath@sptoken= } \:
+    }%
 \fi%
 
 % \...ifundefined
 %
 \ifx\pgfutil@ifundefined\pgfmath@undefined%
-	\long\def\pgfmath@ifundefined#1{%
-	  \expandafter\ifx\csname#1\endcsname\relax%
-	    \expandafter\pgfmath@firstoftwo%
-	  \else%
-	    \expandafter\pgfmath@secondoftwo%
-	  \fi}%
+    \long\def\pgfmath@ifundefined#1{%
+      \expandafter\ifx\csname#1\endcsname\relax%
+        \expandafter\pgfmath@firstoftwo%
+      \else%
+        \expandafter\pgfmath@secondoftwo%
+      \fi}%
 \else%
-	\let\pgfmath@ifundefined\pgfutil@ifundefined%
+    \let\pgfmath@ifundefined\pgfutil@ifundefined%
 \fi%
 
 % \...selectfont
 %
 \ifx\pgfutil@selectfont\pgfmath@undefined%
-	\ifx\selectfont\pgfmath@undefined%
-		\let\pgfmath@selectfont\rm% Plain TeX and ConTeXt.
-	\else%
-		\let\pgfmath@selectfont\selectfont% LaTeX.
-	\fi%
+    \ifx\selectfont\pgfmath@undefined%
+        \let\pgfmath@selectfont\rm% Plain TeX and ConTeXt.
+    \else%
+        \let\pgfmath@selectfont\selectfont% LaTeX.
+    \fi%
 \else%
-	\let\pgfmath@selectfont\pgfutil@selectfont%
+    \let\pgfmath@selectfont\pgfutil@selectfont%
 \fi%
 
 % New definition easier than fussing around with let.
@@ -163,43 +163,43 @@
 %
 \ifx\pgf@sys@tonumber\pgfmath@undefined%
   {\catcode`\p=12\catcode`\t=12\gdef\Pgf@geT#1pt{#1}}
-	\def\pgfmath@tonumber#1{\expandafter\Pgf@geT\the#1}
+    \def\pgfmath@tonumber#1{\expandafter\Pgf@geT\the#1}
 \else%
-	\let\pgfmath@tonumber\pgf@sys@tonumber%
+    \let\pgfmath@tonumber\pgf@sys@tonumber%
 \fi%
 
 
 % \PackageWarning and \PackageError
 %
 \ifx\PackageWarning\pgfmath@undefined
-	\def\pgfmath@PackageWarning#1#2{\immediate\write-1{Package #1: Warning! #2.}}%
+    \def\pgfmath@PackageWarning#1#2{\immediate\write-1{Package #1: Warning! #2.}}%
 \else%
-	\let\pgfmath@PackageWarning\PackageWarning%
+    \let\pgfmath@PackageWarning\PackageWarning%
 \fi%
 \ifx\PackageError\pgfmath@undefined
-	\def\pgfmath@PackageError#1#2#3{\errmessage{Package #1 Error: #2.}}%
+    \def\pgfmath@PackageError#1#2#3{\errmessage{Package #1 Error: #2.}}%
 \else%
-	\let\pgfmath@PackageError\PackageError%
+    \let\pgfmath@PackageError\PackageError%
 \fi%
 
 \def\pgfmath@error#1#2{%
-	\pgfmath@PackageError{PGF Math}{%
-		#1%
-		\pgfutil@ifundefined{pgfmath@expression}{}{ (in '\pgfmath@expression')}%
-	}{#2}%
+    \pgfmath@PackageError{PGF Math}{%
+        #1%
+        \pgfutil@ifundefined{pgfmath@expression}{}{ (in '\pgfmath@expression')}%
+    }{#2}%
 }
 \def\pgfmath@warning#1{%
-	\pgfmath@PackageWarning{PGF Math}{%
-		#1%
-		\pgfutil@ifundefined{pgfmath@expression}{}{ (in '\pgfmath@expression')}%
-	}%
+    \pgfmath@PackageWarning{PGF Math}{%
+        #1%
+        \pgfutil@ifundefined{pgfmath@expression}{}{ (in '\pgfmath@expression')}%
+    }%
 }
 
 % \pgfmath@pt
 %
 % Needed to test for 'pt' resulting from expansion using \the.
 %
-{\catcode`\p=12\catcode`\t=12\gdef\PgfmaTh@PT{pt}}		
+{\catcode`\p=12\catcode`\t=12\gdef\PgfmaTh@PT{pt}}
 \edef\pgfmath@pt{\PgfmaTh@PT}%
 
 % \pgfmath@empty
@@ -214,7 +214,7 @@
 % \pgfmath@gobbletilpgfmath@
 %
 % Gobble stream until \pgfmath@ {which is undefined}.
-% 
+%
 \def\pgfmath@gobbletilpgfmath@#1\pgfmath@{}
 \def\pgfmath@gobbleone#1{}%
 
@@ -231,17 +231,17 @@
 %
 \newif\ifpgfmathcontinueloop
 \def\pgfmathloop#1\repeatpgfmathloop{%
-	\def\pgfmathcounter{1}%
-	\def\pgfmath@iterate{%
-		#1\relax%
-		{% Do this inside a group, just in case...
-			\c@pgfmath@counta\pgfmathcounter%
-			\advance\c@pgfmath@counta1\relax%
-			\xdef\pgfmathloop@temp{\the\c@pgfmath@counta}%
-		}%	
-		\edef\pgfmathcounter{\pgfmathloop@temp}%
-		\expandafter\pgfmath@iterate\fi}%
-	\pgfmath@iterate\let\pgfmath@iterate\relax}
+    \def\pgfmathcounter{1}%
+    \def\pgfmath@iterate{%
+        #1\relax%
+        {% Do this inside a group, just in case...
+            \c@pgfmath@counta\pgfmathcounter%
+            \advance\c@pgfmath@counta1\relax%
+            \xdef\pgfmathloop@temp{\the\c@pgfmath@counta}%
+        }%
+        \edef\pgfmathcounter{\pgfmathloop@temp}%
+        \expandafter\pgfmath@iterate\fi}%
+    \pgfmath@iterate\let\pgfmath@iterate\relax}
 \let\repeatpgfmathloop\fi
 \def\pgfmathbreakloop{\let\pgfmath@iterate\relax}%
 
@@ -251,7 +251,7 @@
 %
 % Changed by TT: made faster and simpler since it is used
 % *heavily*. #1 must be something that can be assigned to a
-% dimension. 
+% dimension.
 %
 \def\pgfmath@returnone#1\endgroup{%
   \pgfmath@x#1%
@@ -269,6 +269,6 @@
 % followed by \endgroup
 %
 \def\pgfmath@smuggleone#1\endgroup{%
-  \expandafter\endgroup\expandafter\def\expandafter#1\expandafter{#1}}  
+  \expandafter\endgroup\expandafter\def\expandafter#1\expandafter{#1}}
 
 \let\pgfmathsmuggle=\pgfmath@smuggleone
-- 
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