X-Git-Url: http://git.tuebingen.mpg.de/?a=blobdiff_plain;f=subcommand;h=5e55580013dad9ec224e8c11a8e191b18c00428e;hb=6d2ca9b4375fb6103a49b64f9b4feee72dd44843;hp=a07f4145c69adb6fa319dbdaa9c97e3b0a2d5cde;hpb=e08a602e71ba1f9c9bb8e1c493cb4109fc22e952;p=gsu.git

diff --git a/subcommand b/subcommand
index a07f414..5e55580 100644
--- a/subcommand
+++ b/subcommand
@@ -100,7 +100,7 @@ gsu_getopts()
 '
 
 	gsu_check_arg_count $# 1 1
-	if (($ret < 0)); then
+	if ((ret < 0)); then
 		gsu_err_msg
 		exit 1
 	fi
@@ -126,7 +126,7 @@ gsu_getopts()
 	result="local _gsu_getopts_opt"
 	for ((i=0; i < ${#1}; i++)); do
 		c1=${1:$i:1}
-		c2=${1:$(($i + 1)):1}
+		c2=${1:$((i + 1)):1}
 		result+=" o_$c1="
 		if [[ "$c2" = ":" ]]; then
 			let i++
@@ -141,7 +141,7 @@ gsu_getopts()
 "
 	for ((i=0; i < ${#1}; i++)); do
 		c1=${1:$i:1}
-		c2=${1:$(($i + 1)):1}
+		c2=${1:$((i + 1)):1}
 		result+="$tab$tab$c1) o_$c1="
 		if [[ "$c2" = ":" ]]; then
 			result+="\"\$OPTARG\""
@@ -175,7 +175,7 @@ _gsu_print_available_commands()
 	for cmd in $cmds; do
 		printf '%s' "$cmd"
 		let ++count
-		if (($count % 4)); then
+		if ((count % 4)); then
 			printf '\t'
 			((${#cmd} < 8)) && printf '\t'
 		else
@@ -187,6 +187,8 @@ _gsu_print_available_commands()
 
 # Print all options of the given optstring to stdout if the word in the current
 # command line begins with a hyphen character.
+#
+# Returns 0 if the current word does not start with a hyphen, one otherwise.
 gsu_complete_options()
 {
 	local opts="$1" cword="$2" cur opt
@@ -198,13 +200,12 @@ gsu_complete_options()
 	ret=0
 	[[ ! "$cur" == -* ]] && return
 
-	ret=0
 	for ((i=0; i < ${#opts}; i++)); do
 		opt="${opts:$i:1}"
 		[[ "$opt" == ":" ]] && continue
 		printf "%s" "-$opt "
-		let ret++
 	done
+	ret=1
 }
 
 com_prefs_options='e'
@@ -225,9 +226,9 @@ com_prefs()
 
 	gsu_getopts "$com_prefs_options"
 	eval "$result"
-	(($ret < 0)) && return
+	((ret < 0)) && return
 	gsu_check_arg_count $# 0 0
-	(($ret < 0)) && return
+	((ret < 0)) && return
 
 	if [[ "$o_e" == "true" ]]; then
 		ret=-$E_GSU_MKDIR
@@ -255,7 +256,7 @@ com_prefs()
 			printf "# optional"
 			;;
 		esac
-		printf "%s: %s" "$option_type" "$description"
+		printf " %s: %s" "$option_type" "$description"
 		if [[ "$required" != "yes" && "$required" != "true" ]]; then
 			printf " [%s]" "$default_value"
 		fi
@@ -293,7 +294,7 @@ Print the manual.
 
 Usage: man [-m <mode>] [-b <browser>]
 
--m: Set output format (text, roff or html). Default: text.
+-m: Set output format (text, roff or html). Default: roff.
 -b: Use the specified browser. Implies html mode.
 
 If stdout is not associated with a terminal device, the command
@@ -309,9 +310,6 @@ file is displayed as a page in the web browser. If -b is not given,
 the command stored in the $BROWSER environment variable is executed
 with the path to the temporary file as an argument. If $BROWSER is
 unset, elinks(1) is assumed.
-
-It is recommended to specify the output format with -m as the default
-mode might change in future versions of gsu.
 '
 
 _gsu_read_line()
@@ -522,7 +520,7 @@ com_man()
 		o_m='html'
 		browser="$o_b"
 	elif [[ -z "$o_m" ]]; then
-		o_m='text'
+		o_m='roff'
 	fi
 
 	_gsu_isatty && isatty='true' || isatty='false'
@@ -597,7 +595,7 @@ com_man()
 	_gsu_available_commands
 	for com in $result; do
 		num=${#com}
-		(($num < 4)) && num=4
+		((num < 4)) && num=4
 		echo "${minus_signs:0:$num}"
 		echo "$com"
 		echo "${minus_signs:0:$num}"
@@ -738,7 +736,12 @@ com_complete()
 		local -a candidates;
 
 		candidates=(\$($0 complete "\$COMP_CWORD" "\${COMP_WORDS[@]}"));
-		COMPREPLY=(\$(compgen -W "\${candidates[*]}" -- "\$cur"));
+		if ((\$? == 0)); then
+			COMPREPLY=(\$(compgen -W "\${candidates[*]}" -- "\$cur"));
+		else
+			compopt -o filenames;
+			COMPREPLY=(\$(compgen -fd -- "\$cur"));
+		fi
 EOF
 		ret=$GSU_SUCCESS
 		return
@@ -746,8 +749,8 @@ EOF
 
 	cword="$1"
 	gsu_is_a_number "$cword"
-	(($ret < 0)) && return
-	if (($cword <= 1)); then
+	((ret < 0)) && return
+	if ((cword <= 1)); then
 		_gsu_available_commands
 		echo "${result}"
 		ret=$GSU_SUCCESS
@@ -756,8 +759,9 @@ EOF
 	shift
 	words=("$@")
 	cmd="${words[1]}"
-	ret=$GSU_SUCCESS # It's not an error if no completer was defined
-	[[ "$(type -t "complete_$cmd")" != "function" ]] && return
+	# if no completer is defined for this subcommand we exit unsuccessfully
+	# to let the generic completer above fall back to file name completion.
+	[[ "$(type -t "complete_$cmd")" != "function" ]] && exit 1
 	"complete_$cmd" "$cword" "${words[@]}"
 	# ignore errors, they would only clutter the completion output
 	ret=$GSU_SUCCESS
@@ -779,18 +783,18 @@ gsu_cword_is_option_parameter()
 	local -a words
 
 	result=
-	(($cword == 0)) && return
+	((cword == 0)) && return
 	((${#opts} < 2)) && return
 
 	shift 2
 	words=("$@")
-	prev="${words[$(($cword - 1))]}"
+	prev="${words[$((cword - 1))]}"
 	[[ ! "$prev" == -* ]] && return
 
 	n=$((${#opts} - 1))
 	for ((i=0; i <= $n; i++)); do
 		opt="${opts:$i:1}"
-		[[ "${opts:$(($i + 1)):1}" != ":" ]] && continue
+		[[ "${opts:$((i + 1)):1}" != ":" ]] && continue
 		let i++
 		[[ ! "$prev" =~ ^-.*$opt$ ]] && continue
 		result="$opt"
@@ -821,13 +825,13 @@ gsu_get_unnamed_arg_num()
 	shift 2
 	words=("$@")
 	cur="${words[$cword]}"
-	prev="${words[$(($cword - 1))]}"
+	prev="${words[$((cword - 1))]}"
 	result=-1
 	[[ "$cur" == -* ]] && return
 	[[ "$prev" == -* ]] && [[ "$opts" == *${prev#-}:* ]] && return
 
 	for ((i=1; i <= $cword; i++)); do
-		prev="${words[$(($i - 1))]}"
+		prev="${words[$((i - 1))]}"
 		cur="${words[$i]}"
 		[[ "$cur" == -* ]] && continue
 		if [[ "$prev" == -* ]]; then
@@ -837,7 +841,7 @@ gsu_get_unnamed_arg_num()
 		fi
 		let n++
 	done
-	result="$(($n - 1))"
+	result="$((n - 1))"
 }
 
 # Entry point for all gsu-based scripts.
@@ -868,7 +872,7 @@ gsu()
 	shift
 	if [[ "$(type -t "com_$arg")" == 'function' ]]; then
 		"com_$arg" "$@"
-		if (("$ret" < 0)); then
+		if ((ret < 0)); then
 			gsu_err_msg
 			exit 1
 		fi