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+%% LaTeX2e file `asyfig.sty'
+%% generated by the `filecontents' environment
+%% from source `asyfig' on 2009/06/24.
+%%
+\ProvidesPackage{asyfig}[2009/06/23 v0.1a
+  Commands for using asymptote figures]
+
+% This package is the main user interface for inserting external |asy| figures
+% into the document.
+
+\RequirePackage{%
+  asyalign,color,ifmtarg,ifpdf,ifplatform,import,
+  graphicx,pdftexcmds,suffix,xkeyval}
+
+% Better conditionals than |\newif| provides:
+\def\@True{11}
+\def\@False{01}
+\def\asy@If#1{\if#1\relax\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi}
+
+\let\asy@always\@False
+\let\asy@never\@False
+\let\asy@process\@False
+
+% Package options:
+\define@choicekey*{asyfig.sty}{process}[\@tempa\@tempb]{all,none,auto}{%
+  \ifcase\@tempb\relax
+    \let\asy@always\@True
+  \or
+    \let\asy@never\@True
+  \or
+  \fi
+}
+\ExecuteOptions{process=auto}
+
+\ProcessOptionsX
+
+% \subsection{Auxiliary macros}
+
+\def\asy@splitpath#1/#2/{%
+% Recursive macro that is used like\\
+% \qquad |\asy@splitpath abc/def/ghi.asy/\@nil/|\\
+% It defines |\asy@filename| $\to$ |ghi.asy| and |\asy@path| $\to$ |abc/def/|
+  \ifx\@nil#2\relax
+% If input is \<anything>|/\@nil/| then we've reached the end:
+    \def\asy@filename{#1}%
+  \else
+% Otherwise we're in the middle of the slash-separated list;
+% build up |\asy@path|, and iterate:
+    \edef\asy@path{\asy@path#1/}%
+    \def\@tempa{\asy@splitpath#2/}%
+    \expandafter\@tempa
+  \fi
+}
+
+\newcommand\asypath[1]{\def\asy@pathprefix{#1}}
+\asypath{}
+
+\def\asy@asyfile{\asy@pathprefix\asy@path\asy@filename.asy}
+\def\asy@texfile{\asy@pathprefix\asy@path\asy@filename\string_.tex}
+
+\def\asy@cmdsep{\ifwindows \string& \else; \fi}
+
+% \subsection{The main macro}
+
+\newcommand\asyfig[1]{%
+  \let\asy@path\@empty
+  \asy@splitpath #1/\@nil/%
+  \IfFileExists{\asy@asyfile}{%
+    \asy@If\asy@process{}{%
+    \asy@If\asy@always{%
+      \let\asy@process\@True
+    }{%
+      \IfFileExists{\asy@texfile}{%
+        \asy@If\asy@never{}{%
+          % compare file dates to see if we want to reprocess:
+          \ifnum\pdf@strcmp{\pdf@filemoddate{\asy@texfile}}
+                           {\pdf@filemoddate{\asy@asyfile}} < \z@
+            \let\asy@process\@True
+          \fi
+        }%
+      }{% if the .tex file doesn't exist, either
+        % give an error or process the .asy file:
+        \asy@If\asy@never{%
+          \PackageError{asyfig}{%
+            ^^J\space\space\space\space
+            "\asy@pathprefix\asy@path\asy@filename.asy" requires processing%
+          }{%
+            The generated file that is required to insert the asy graphic,
+            ^^J\space\space\space\space
+            "\asy@pathprefix\asy@path\asy@filename\string_.tex"^^J%
+            does not exist.
+            Please process the asy figure manually or de-activate the^^J%
+            [process=none] package option.
+          }%
+        }{%
+          \let\asy@process\@True
+        }
+      }%
+    }}%
+    \asy@If\asy@process{%
+      \edef\@tempa{\asy@pathprefix\asy@path}%
+      \pdf@system{%
+        echo "^^J====== ASY PROCESS =====^^J"
+        \asy@cmdsep
+        \ifx\@tempa\@empty\else
+          cd \@tempa
+          \asy@cmdsep
+        \fi
+        \ifpdf pdf\fi latex
+          -shell-escape
+          -interaction=batchmode
+          -jobname=\asy@filename-comp
+        \unexpanded{%
+          "\RequirePackage{asyprocess}\ProcessAsy
+           \documentclass{article}
+           \begin{document}\ShowAsy
+           \end{document}"
+        }%
+        \asy@cmdsep
+        echo "^^J==== ASY END PROCESS ===^^J"
+      }%
+    }{}%
+    \import{\asy@pathprefix\asy@path}{\asy@filename\string_.tex}%
+  }{%
+    \PackageWarning{asyfig}{%
+      ^^J\space\space
+      "\asy@pathprefix\asy@path\asy@filename.asy" not found.^^J%
+      This warning occurred%
+    }%
+  }%
+  \let\asy@process\@False
+}
+
+% The starred version of \cmd\asyfig\ processes the graphic always:
+\WithSuffix\newcommand\asyfig*[1]{%
+  \begingroup
+    \let\asy@process\@True
+    \csname\NoSuffixName\asyfig\endcsname{#1}%
+  \endgroup
+}
+