Use _split_longopt with mc, other small mc option completion improvements.

CHANGES

@@ -38,8 +38,8 @@ bash-completion (1.x)
   * Add _split_longopt() helper for improved handling of long options that
     take arguments in both "--foo bar" and "--foo=bar" formats.
   * Use _split_longopt to improve and clean up aspell, chgrp, chown, chkconfig,
-    cpio, iptables, make, mii-diag, mii-tool, mkinitrd, smartctl, and generic
-    long option completion (Alioth: #311398).
+    cpio, iptables, make, mc, mii-diag, mii-tool, mkinitrd, smartctl, and
+    generic long option completion (Alioth: #311398).
   * Add chown --from and --reference value completions.
   * Add chgrp --reference value completion.
   * Do not assume all --foo= options take filenames in generic long option

contrib/mc

@@ -6,38 +6,38 @@
 have mc &&
 _mc()
 {
-	local cur prev
+	local cur prev split=false
 
 	COMPREPLY=()
 	cur=`_get_cword`
 	prev=${COMP_WORDS[COMP_CWORD-1]}
 
-	# -name value style option
+	_split_longopt && split=true
+
 	case "$prev" in
-		-@(e|v|l|P))
+		-e|--edit|-v|--view|-l|--ftplog|-P|--printwd)
 			_filedir
 			return 0
 			;;
+		-C|--colors|-D|--debuglevel)
+			# argument required but no completions available
+			return 0
+			;;
+		-h|--help|-V|--version)
+			# all other arguments are noop with these
+			return 0
+			;;
 	esac
 
-	# --name=value style option
-	if [[ "$cur" == *=* ]]; then
-		prev=${cur/=*/}
-		cur=${cur/*=/}
-		case "$prev" in
-			--@(edit|view|ftplog|printwd))
-				_filedir
-				return 0
-				;;
-		esac
-	fi
+	$split && return 0
 
 	if [[ "$cur" == -* ]]; then
 		COMPREPLY=( $( compgen -W '-a --stickchars -b --nocolor -c \
-			--color -C --colors= -d --nomouse -e --edit= -f \
-			--datadir -k --resetsoft -l --ftplog= -P --printwd= \
+			--color -C --colors -d --nomouse -e --edit -f \
+			--datadir -k --resetsoft -l --ftplog -P --printwd \
 			-s --slow -t --termcap -u --nosubshell -U --subshell \
-			-v --view= -V --version -x --xterm -h --help' -- $cur ) )
+			-v --view -V --version -x --xterm -D --debuglevel -h \
+			--help' -- $cur ) )
 	else
 		_filedir -d
 	fi