2 files changed, 123 insertions, 14 deletions
diff --git a/Master/texmf-dist/tex/latex/currfile/currfile-abspath.sty b/Master/texmf-dist/tex/latex/currfile/currfile-abspath.sty
index f598d5d6ccb..0b733d0a2af 100644
--- a/Master/texmf-dist/tex/latex/currfile/currfile-abspath.sty
+++ b/Master/texmf-dist/tex/latex/currfile/currfile-abspath.sty
@@ -1,7 +1,7 @@
 \NeedsTeXFormat{LaTeX2e}[1999/12/01]
 \ProvidesPackage{currfile-abspath}[%
-    2012/05/06
-    v0.6
+    2012/05/15
+    v0.7
     Provides absolute file paths, the parent working directory and the main file name]
 \newcommand*\thepwd{}
 \newcommand*\theabspath{}
diff --git a/Master/texmf-dist/tex/latex/currfile/currfile.sty b/Master/texmf-dist/tex/latex/currfile/currfile.sty
index e73708167d2..6bb2bf48b73 100644
--- a/Master/texmf-dist/tex/latex/currfile/currfile.sty
+++ b/Master/texmf-dist/tex/latex/currfile/currfile.sty
@@ -1,7 +1,7 @@
 \NeedsTeXFormat{LaTeX2e}[1999/12/01]
 \ProvidesPackage{currfile}[%
-    2012/05/06
-    v0.6
+    2012/05/15
+    v0.7
     Provides the file path elements of the current input file]
 \RequirePackage{kvoptions}
 \SetupKeyvalOptions{family=currfile,prefix=currfile@}
@@ -20,6 +20,8 @@
     \DeclareBoolOption[false]{fink}%
 }%
 \DeclareVoidOption{force}{\PassOptionsToPackage{force}{filehook}}
+\DeclareBoolOption[false]{parent}
+\DeclareBoolOption[false]{parents}
 \DeclareBoolOption[false]{realmainfile}%
 \let\ifcurrfile@realmainfile\relax
 \DeclareBoolOption[false]{abspath}%
@@ -43,8 +45,6 @@
     \fi
 \fi
 
-\let\currfileabspath\@empty
-\let\currfileabsdir\@empty
 \ifcurrfile@abspath
     \RequirePackage{currfile-abspath}
 \else
@@ -60,6 +60,7 @@
 }
 \def\currfile@set#1{%
   \begingroup
+    \currfile@setparent
     \edef\@filef@und{#1}%
     \ifx\input@path\@undefined\else
         \currfile@checkpath
@@ -78,8 +79,32 @@
         \global\let\currfileabspath\theabspath
         \xdef\currfileabsdir{\theabsdir\currfiledir}%
     \fi
+    \addtocounter{currfiledepth}\@ne
   \endgroup
 }
+\ifcurrfile@parent
+\ifcurrfile@abspath
+\def\currfile@setparent{%
+    \global\let\parentfiledir\currfiledir
+    \global\let\parentfilebase\currfilebase
+    \global\let\parentfileext\currfileext
+    \global\let\parentfilename\currfilename
+    \global\let\parentfilepath\currfilepath
+    \global\let\parentfileabspath\currfileabspath
+    \global\let\parentfileabsdir\currfileabsdir
+}
+\else
+\def\currfile@setparent{%
+    \global\let\parentfiledir\currfiledir
+    \global\let\parentfilebase\currfilebase
+    \global\let\parentfileext\currfileext
+    \global\let\parentfilename\currfilename
+    \global\let\parentfilepath\currfilepath
+}
+\fi
+\else
+\let\currfile@setparent\relax
+\fi
 \def\currfile@checkpath{%
     \openin\@inputcheck\@filef@und\relax
     \ifeof\@inputcheck
@@ -135,15 +160,21 @@
 }
 \fi
 \def\currfile@pop{%
-  \ifx\currfile@stack\empty
+  \ifcase0%
+    \ifx\currfile@stack\empty 1\else
+    \ifnum\value{currfiledepth}<\@ne 1\fi\fi
+  \relax
+    \addtocounter{currfiledepth}\m@ne
+  \else
     \PackageWarning{currfile}{File stack underflow!}%
     \global\let\currfile@stack\currfile@stackinit
+    \setcounter{currfiledepth}\z@
   \fi
   \expandafter\currfile@pop@\currfile@stack\relax
-  \relax\relax\relax
+  \relax\relax\relax\relax\relax\relax\relax
 }
 \ifcurrfile@abspath
-\def\currfile@pop@#1#2#3#4#5\relax{%
+\def\currfile@pop@#1#2#3#4{%
   \gdef\currfiledir{#1}%
   \gdef\currfilebase{#2}%
   \gdef\currfileext{#3}%
@@ -151,19 +182,98 @@
   \xdef\currfilepath{\currfiledir\currfilename}%
   \gdef\currfileabsdir{#4}%
   \xdef\currfileabspath{\ifx\currfileabsdir\@empty\else\currfileabsdir\currfilename\fi}%
-  \gdef\currfile@stack{#5}%
+  \currfile@updatestack
 }
 \else
-\def\currfile@pop@#1#2#3#4\relax{%
+\def\currfile@pop@#1#2#3{%
   \gdef\currfiledir{#1}%
   \gdef\currfilebase{#2}%
   \gdef\currfileext{#3}%
   \xdef\currfilename{\currfilebase\ifx\currfileext\empty\else.\currfileext\fi}%
   \xdef\currfilepath{\currfiledir\currfilename}%
-  \gdef\currfile@stack{#4}%
+  \currfile@updatestack
+}
+\fi
+\ifcurrfile@parent
+\ifcurrfile@abspath
+\def\currfile@updatestack#1#2#3#4#5\relax{%
+  \gdef\parentfiledir{#1}%
+  \gdef\parentfilebase{#2}%
+  \gdef\parentfileext{#3}%
+  \xdef\parentfilename{\parentfilebase\ifx\parentfileext\empty\else.\parentfileext\fi}%
+  \xdef\parentfilepath{\parentfiledir\parentfilename}%
+  \gdef\parentfileabsdir{#4}%
+  \xdef\parentfileabspath{\ifx\parentfileabsdir\@empty\else\parentfileabsdir\parentfilename\fi}%
+  \gdef\currfile@stack{{#1}{#2}{#3}{#4}#5}%
+}
+\else
+\def\currfile@updatestack#1#2#3#4\relax{%
+  \gdef\parentfiledir{#1}%
+  \gdef\parentfilebase{#2}%
+  \gdef\parentfileext{#3}%
+  \xdef\parentfilename{\parentfilebase\ifx\parentfileext\empty\else.\parentfileext\fi}%
+  \xdef\parentfilepath{\parentfiledir\parentfilename}%
+  \gdef\currfile@stack{{#1}{#2}{#3}#4}%
+}
+\fi
+\else
+\def\currfile@updatestack#1\relax{%
+  \gdef\currfile@stack{#1}%
 }
 \fi
-\def\currfile@stack{}
+\ifcurrfile@parents
+\newcommand*\currfilegetparents{%
+  \@tempcnta\@ne
+  \expandafter\currfile@getparents\currfile@stack\relax
+  \relax\relax\relax\relax\relax\relax\relax
+}
+\ifcurrfile@abspath
+\def\currfile@getparents#1#2#3#4{%
+  \@namedef{parentfiledir\romannumeral\@tempcnta}{#1}%
+  \@namedef{parentfilebase\romannumeral\@tempcnta}{#2}%
+  \@namedef{parentfileext\romannumeral\@tempcnta}{#3}%
+  \expandafter\edef\csname parentfilename\romannumeral\@tempcnta\endcsname{#2\ifx\empty#3\empty\else.#3\fi}%
+  \expandafter\edef\csname parentfilepath\romannumeral\@tempcnta\endcsname{#1\csname parentfilename\romannumeral\@tempcnta\endcsname}%
+  \@namedef{parentfileabsdir\romannumeral\@tempcnta}{#4}%
+  \expandafter\edef\csname parentfileabspath\romannumeral\@tempcnta\endcsname{%
+    \expandafter\ifx\csname parentfileabsdir\romannumeral\@tempcnta\endcsname\@empty\else
+      \csname parentfileabsdir\romannumeral\@tempcnta\endcsname
+      \csname parentfilename\romannumeral\@tempcnta\endcsname
+    \fi
+  }%
+  \ifnum\@tempcnta<\c@currfiledepth
+    \advance\@tempcnta\@ne
+    \expandafter\currfile@getparents
+  \fi
+}
+\else
+\def\currfile@getparents#1#2#3{%
+  \@namedef{parentfiledir\romannumeral\@tempcnta}{#1}%
+  \@namedef{parentfilebase\romannumeral\@tempcnta}{#2}%
+  \@namedef{parentfileext\romannumeral\@tempcnta}{#3}%
+  \expandafter\edef\csname parentfilename\romannumeral\@tempcnta\endcsname{#2\ifx\empty#3\empty\else.#3\fi}%
+  \expandafter\edef\csname parentfilepath\romannumeral\@tempcnta\endcsname{#1\csname parentfilename\romannumeral\@tempcnta\endcsname}%
+  \ifnum\@tempcnta<\c@currfiledepth
+    \advance\@tempcnta\@ne
+    \expandafter\currfile@getparents
+  \fi
+}
+\fi
+\newcommand\parentfile[2]{%
+    \csname parentfile#1\romannumeral#2\endcsname
+}
+\fi
+\let\currfile@stack\@empty
+\let\currfiledir\@empty
+\let\currfilebase\@empty
+\let\currfileext\@empty
+\let\currfilename\@empty
+\let\currfilepath\@empty
+\let\currfileabspath\@empty
+\let\currfileabsdir\@empty
+\newcounter{currfiledepth}
+\setcounter{currfiledepth}\m@ne
+\currfile@push
 \ifcurrfile@realmainfile
     \getmainfile
     \ifx\themainfile\@empty
@@ -174,7 +284,6 @@
 \else
     \currfile@set{\currfile@maindir\jobname.\currfile@mainext}
 \fi
-\currfile@push
 \let\currfile@stackinit\currfile@stack
 \let\currfile@abspathfalse\relax
 \let\currfile@abspathtrue\relax