Ticket #2739: add support of PAR archives.

Signed-off-by: Slava Zanko <slavazanko@gmail.com>

misc/ext.d/archive.sh

@@ -128,6 +128,9 @@ do_open_action() {
     xz)
         xz -dc "${MC_EXT_FILENAME}" | ${pager}
         ;;
+    par2)
+        par2 r "${MC_EXT_FILENAME}"
+        ;;
     *)
         ;;
     esac

misc/mc.ext.in

@@ -726,6 +726,10 @@ regex/\.xz$
 	Open=@EXTHELPERSDIR@/archive.sh view xz %var{PAGER:more}
 	View=%view{ascii} @EXTHELPERSDIR@/archive.sh view xz
 
+# Parity Archive
+type/^Parity\ Archive\ Volume\ Set
+	Open=@EXTHELPERSDIR@/archive.sh open par2
+
 ### Default ###
 
 # Default target for anything not described above