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-rw-r--r--Master/texmf-dist/tex/generic/pgf/utilities/pgfutil-common.tex42
1 files changed, 27 insertions, 15 deletions
diff --git a/Master/texmf-dist/tex/generic/pgf/utilities/pgfutil-common.tex b/Master/texmf-dist/tex/generic/pgf/utilities/pgfutil-common.tex
index b2f55e82923..d3d8c59daa2 100644
--- a/Master/texmf-dist/tex/generic/pgf/utilities/pgfutil-common.tex
+++ b/Master/texmf-dist/tex/generic/pgf/utilities/pgfutil-common.tex
@@ -8,8 +8,8 @@
% See the file doc/generic/pgf/licenses/LICENSE for more details.
-%
-% This file provides utitiliy commands that are used throughout pgf.
+%
+% This file provides utility commands that are used throughout pgf.
%
% For most commands, the definition of these commands is just given
% below. We cannot use the LaTeX definition of these commands since
@@ -20,7 +20,7 @@
% context) is to be preferred over the generic definition below. In
% this case, the definition of the format is installed when the file
% pgfutil-XXXX.tex is read, where XXXX is the format name (latex,
-% plain, or context).
+% plain, or context).
@@ -70,6 +70,9 @@
}
\long\def\pgfutil@firstofone#1{#1}
\long\def\pgfutil@firstoftwo#1#2{#1}
+\long\def\pgfutil@letfirst#1#2{\pgfutil@letfirst@#1#2\pgfutil@letfirst@end}
+\long\def\pgfutil@letfirst@#1#2#3\pgfutil@letfirst@end{\let#1=#2}
+\def\pgfutil@letfirst@end{}
\long\def\pgfutil@secondoftwo#1#2{#2}
\def\pgfutil@empty{}
\def\pgfutil@gobble@until@relax#1\relax{}
@@ -238,12 +241,12 @@
% Include a library file.
%
% #1 = List of names of library file.
-%
+%
% Description:
%
% This command includes a list of library files. For each file X in the
% list, the file pgflibraryX.code.tex is included, provided this has
-% not been done earlier.
+% not been done earlier.
%
% For the convenience of Context users, both round and square brackets
% are possible for the argument.
@@ -273,7 +276,7 @@
\pgferror{I did not find the pgf library
'\pgf@temp'. I looked for the file named
pgflibrary\pgf@temp.code.tex, but could not find it in in
- the current texmf trees.}
+ the current texmf trees.}
}%
\catcode`\@=\csname pgf@library@#1@atcode\endcsname
\catcode`\|=\csname pgf@library@#1@barcode\endcsname
@@ -287,12 +290,12 @@
% Include a module file.
%
% #1 = List of names of module files.
-%
+%
% Description:
%
% This command includes a list of module files. For each file X in the
% list, the file pgfmoduleX.code.tex is included, provided this has
-% not been done earlier.
+% not been done earlier.
%
% For the convenience of Context users, both round and square brackets
% are possible for the argument.
@@ -340,7 +343,7 @@
% If '#1' is a usual file name without anything fancy, \pgfretval
% will simply contain it. However, if '#1' contains double colons
% (introduces, for example, by pdftex because there are white
- % spaces in '#1'), the routine
+ % spaces in '#1'), the routine
% - removes the double colons,
% - re-inserts them outside of the string.
%
@@ -434,7 +437,7 @@
\def\pgfretval{####1}%
}%
\pgfutil@tmp#2\pgf@EOI%
- %
+ %
% ... and execute the <true> code:
#3\relax%
\else
@@ -475,7 +478,7 @@
% Solves a linear equation system of size 2x2 using gauss elimination.
%
% It employs TeX register arithmetics to do so.
-% #1: should contain 4 sets of braces with matrix entries,
+% #1: should contain 4 sets of braces with matrix entries,
% {<a11>}{<a12>}
% {<a21>}{<a22>}
% where each entry should be a number without unit.
@@ -538,7 +541,7 @@
{\csname m\Pa a\endcsname}%
\let\pivot=\pgfmathresult
%
- % \factor := 1/aa * ba
+ % \factor := 1/aa * ba
\csname \Pb a\endcsname=\pivot\csname \Pb a\endcsname
\edef\factor{\expandafter\pgf@sys@tonumber\csname \Pb a\endcsname}%
%
@@ -658,7 +661,7 @@
\expandafter\pgfmathfloatreciprocal@\expandafter{\csname m\Pa a\endcsname}%
\let\pivot=\pgfmathresult
%
- % \factor := 1/aa * ba
+ % \factor := 1/aa * ba
\expandafter\pgfmathfloatmultiply@\expandafter{\csname m\Pb a\endcsname}{\pivot}%
\let\factor=\pgfmathresult
\expandafter\let\csname m\Pb a\endcsname=\factor
@@ -746,7 +749,7 @@
% Used by latex for doing reruns
% #1 = an internal label
-% #2 = a to-be-tested text
+% #2 = a to-be-tested text
\def\pgfutil@check@rerun#1#2{}
% new tempdims:
@@ -797,9 +800,18 @@
% End of luatex stuff
+% \pgfutil@scantokens
+%
+% This is either the \scantokens primitive or \relax
+\pgfutil@IfUndefined{scantokens}{%
+ \long\def\pgfutil@scantokens#1{#1}%
+}{%
+ \let\pgfutil@scantokens=\scantokens%
+}%
+
% Advances a number stored in a macro and writes the result back into
% the macro.
-% #1 is a macro containing a number.
+% #1 is a macro containing a number.
\def\pgfutil@advancestringcounter#1{%
\begingroup
\c@pgf@counta=#1\relax