X-Git-Url: http://git.tuebingen.mpg.de/?p=gsu.git;a=blobdiff_plain;f=subcommand;h=261e35f5e39b6f377529c24a136427106d6301cb;hp=bded36d1514a09a4c3ed61dc72d11095e470d7b8;hb=32134f1512eab90da01e9cfd9f676bffef27a939;hpb=521b9d7584ff363b9af24f33e0afb1e954da854a

diff --git a/subcommand b/subcommand
index bded36d..261e35f 100644
--- a/subcommand
+++ b/subcommand
@@ -1,5 +1,6 @@
 #!/bin/bash
-# (C) 2006-2011 Andre Noll
+# Copyright (C) 2006 Andre Noll
+# Licensed under the LGPL, version 3. See COPYING and COPYING.LESSER.
 
 if [[ "$(type -t _gsu_setup)" != "function" ]]; then
 	gsu_dir=${gsu_dir:-${BASH_SOURCE[0]%/*}}
@@ -57,7 +58,7 @@ _gsu_print_available_commands()
 	printf 'Available commands:\n'
 	for cmd in $gsu_cmds; do
 		printf '%s' "$cmd"
-		let count++
+		let ++count
 		if (($count % 4)); then
 			printf '\t'
 			((${#cmd} < 8)) && printf '\t'
@@ -68,6 +69,8 @@ _gsu_print_available_commands()
 	printf '\n'
 }
 
+# Print all options of the given optstring to stdout if the word in the current
+# command line begins with a hyphen character.
 gsu_complete_options()
 {
 	local opts="$1" cword="$2" cur opt
@@ -314,7 +317,7 @@ complete_help()
 # Aborts on programming errors such as missing or invalid option string.  On
 # success $result contains shell code that can be eval'ed. For each defined
 # option x, the local variable o_x will be created when calling eval "$result".
-# o_x contains true/false for options without argument and either the emtpy
+# o_x contains true/false for options without argument and either the empty
 # string or the given argument for options that take an argument.
 #
 # Example:
@@ -546,6 +549,7 @@ gsu()
 	# external commands
 	for i in $gsu_cmds; do
 		if test "$arg" = "$i"; then
+			ret=$GSU_SUCCESS
 			com_$arg "$@"
 			if (("$ret" < 0)); then
 				gsu_err_msg
@@ -573,8 +577,7 @@ gsu()
 # 	0 0 no argument allowed
 # 	1 1 exactly one argument required
 # 	0 2 at most two arguments admissible
-# 	2   at least two arguments reqired
-#
+# 	2   at least two arguments required
 gsu_check_arg_count()
 {
 	ret=-$E_GSU_BAD_ARG_COUNT