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-rw-r--r--Master/texmf-dist/tex/generic/pgf/math/pgfmathfunctions.code.tex26
1 files changed, 24 insertions, 2 deletions
diff --git a/Master/texmf-dist/tex/generic/pgf/math/pgfmathfunctions.code.tex b/Master/texmf-dist/tex/generic/pgf/math/pgfmathfunctions.code.tex
index fc08640e4f3..417ede069dd 100644
--- a/Master/texmf-dist/tex/generic/pgf/math/pgfmathfunctions.code.tex
+++ b/Master/texmf-dist/tex/generic/pgf/math/pgfmathfunctions.code.tex
@@ -1,4 +1,4 @@
-% Copyright 2007 by Mark Wibrow
+% Copyright 2019 by Mark Wibrow
%
% This file may be distributed and/or modified
%
@@ -52,6 +52,7 @@
{\expandafter\noexpand\csname pgfmath#1@\endcsname}%
{\csname pgfmath@operation@#1@arity\endcsname}%
}%
+ \pgfkeysvalueof{/pgf/declare function/execute at begin function}%
\pgfmath@marshal%
}
@@ -61,6 +62,7 @@
% #4 - code for function <name>.
%
\def\pgfmath@@declarefunction#1#2#3#4{% Function of arity 0 - 9.
+ \pgfkeysvalueof{/pgf/declare function/execute at end function}%
\ifcase#3\relax%
\def#1{#2}%
\def\pgfmath@@head{\def#2}%
@@ -109,7 +111,27 @@
\pgfkeys{%
/pgf/declare function/.code={%
\pgfmath@local@functions#1@=@;%
- }
+ },
+ /pgf/declare function/execute at begin function/.initial={},
+ /pgf/declare function/execute at end function/.initial={},
+ /pgf/declare function/ignore spaces/.is choice,
+ /pgf/declare function/ignore spaces/.default=true,
+ /pgf/declare function/ignore spaces/true/.style={%
+ /pgf/declare function/execute at begin function={%
+ \begingroup
+ \catcode`\^^I=9\relax
+ \catcode`\ =9\relax
+ \catcode`\~=10\relax
+ \endlinechar=`\ \relax
+ },
+ /pgf/declare function/execute at end function={%
+ \endgroup
+ },
+ },
+ /pgf/declare function/ignore spaces/false/.style={%
+ /pgf/declare function/execute at begin function={},
+ /pgf/declare function/execute at end function={},
+ },
}
\def\pgfmath@local@gobbleone#1{}