commit bash-20111229 snapshot

examples/complete/cdfunc

@@ -0,0 +1,55 @@
+# based on the cd completion function from the bash_completion package
+_comp_cd()
+{
+	local IFS=$' \t\n'	# normalize IFS
+	local cur _skipdot _cdpath
+	local i j k
+
+	# Tilde expansion, with side effect of expanding tilde to full pathname
+	case "$2" in
+	\~*)	eval cur="$2" ;;
+	*)	cur=$2 ;;
+	esac
+
+	# no cdpath or absolute pathname -- straight directory completion
+	if [[ -z "${CDPATH:-}" ]] || [[ "$cur" == @(./*|../*|/*) ]]; then
+		# compgen prints paths one per line; could also use while loop
+		IFS=$'\n'
+		COMPREPLY=( $(compgen -d -- "$cur") )
+		IFS=$' \t\n'
+	# CDPATH+directories in the current directory if not in CDPATH
+	else
+		IFS=$'\n'
+		_skipdot=false
+		# preprocess CDPATH to convert null directory names to .
+		_cdpath=${CDPATH/#:/.:}
+		_cdpath=${_cdpath//::/:.:}
+		_cdpath=${_cdpath/%:/:.}
+		for i in ${_cdpath//:/$'\n'}; do
+			if [[ $i -ef . ]]; then _skipdot=true; fi
+			k="${#COMPREPLY[@]}"
+			for j in $( compgen -d -- "$i/$cur" ); do
+				COMPREPLY[k++]=${j#$i/}		# cut off directory
+			done
+		done
+		$_skipdot || COMPREPLY+=( $(compgen -d -- "$cur") )
+		IFS=$' \t\n'
+	fi
+
+	# variable names if appropriate shell option set and no completions
+	if shopt -q cdable_vars && [[ ${#COMPREPLY[@]} -eq 0 ]]; then
+		COMPREPLY=( $(compgen -v -- "$cur") )
+	fi
+
+	# append slash to passed directory name that is the only completion.
+	# readline will not do this if we complete from CDPATH
+	if [[ ${#COMPREPLY[@]} -eq 1 ]]; then
+		i=${COMPREPLY[0]}	# shorthand
+		if [[ "$cur" == "$i" ]] && [[ "$i" != "*/" ]]; then
+			COMPREPLY[0]+=/
+		fi
+	fi
+	return 0
+}
+
+complete -o filenames -o nospace -o bashdefault -F _comp_cd cd