break out arrow_any

diff --git a/pumpkin-books.ps.pl b/pumpkin-books.ps.pl
index 375ed4a2cb785dfcd469d555a771a3f7e76c34a8..d267dc89e92da4b74460af4a6bf845945c0ba475 100755 (executable)
--- a/pumpkin-books.ps.pl
+++ b/pumpkin-books.ps.pl
@@ -542,7 +542,18 @@ END
 
   $o;
 }
-  
+
+sub arrow_any ($) { <<END;
+  $black 1 setlinewidth
+    newpath
+       $_[0]
+       arrowhead dup neg exch  rmoveto
+       arrowhead dup neg       rlineto
+       arrowhead neg dup       rlineto
+       stroke
+END
+};
+
 print <<END or die $!;
 %!
 
@@ -576,13 +587,7 @@ $page_pre
 } def
 
 /arrow {
-  $black 1 setlinewidth
-    newpath
-       0 0 moveto  arrowlen 0 rlineto
-       arrowhead dup neg exch  rmoveto
-       arrowhead dup neg       rlineto
-       arrowhead neg dup       rlineto
-       stroke
+  ${\ arrow_any("0 0 moveto  arrowlen 0 rlineto") }
 } def
 
 END