X-Git-Url: http://git.tuebingen.mpg.de/?p=gsu.git;a=blobdiff_plain;f=config;h=6152679d623e9b4b7873f9a92ca1c8557c301840;hp=59086ed4e526817449025041486cd5d6d1e2a13b;hb=refs%2Fheads%2Fpu;hpb=44860e92b582709d9787728134446dd4f02790f6

diff --git a/config b/config
index 59086ed..6152679 100644
--- a/config
+++ b/config
@@ -1,10 +1,13 @@
 #!/bin/bash
+# Copyright (C) 2006 Andre Noll
+# Licensed under the LGPL, version 3. See COPYING and COPYING.LESSER.
 
 # Syntactically check the gsu_options array for errors and parse the config
 # file.
 gsu_check_options()
 {
-	local i conf="${gsu_config_file:=${HOME:-}/.$gsu_name.rc}" val
+	local i f conf="${gsu_config_file:=${HOME:-}/.$gsu_name.rc}" val orig_val
+	local name option_type default_value required description help_text
 
 	for ((i=0; i < ${#gsu_options[@]}; i++)); do
 		eval "${gsu_options[$i]}"
@@ -12,22 +15,25 @@ gsu_check_options()
 		eval orig_${gsu_config_var_prefix}_$name='"'${val}'"'
 	done
 
-	[[ -r "$conf" ]] && source "$conf"
+	for f in $conf; do
+		[[ -r "$f" ]] && source "$f"
+	done
 
 	for ((i=0; i < ${#gsu_options[@]}; i++)); do
-		local name= option_type= default_value= required=
-		local description= help_text=
-		local val orig_val
+		name=
+		option_type=
+		default_value=
+		required=
+		description=
+		help_text=
 
 		eval "${gsu_options[$i]}"
 
 		# Check name. It must be non-empty and consist of [a-zA-Z_0-9]
-		# only.  Moreover it must not start with [a-zA-Z].
+		# only.  Moreover it must start with [a-zA-Z].
 		ret=-$E_GSU_BAD_CONFIG_VAR
 		result="name: '$name'"
-		# bash's =~ works only for 3.2 and newer, so use grep
-		echo "$name" | grep '^[a-zA-Z][a-zA-Z_0123456789]*$' &> /dev/null;
-		(($? != 0)) && return
+		[[ "$name" =~ ^[a-zA-Z][a-zA-Z_0123456789]*$ ]] || return
 
 		eval orig_val='"'\$orig_${gsu_config_var_prefix}_$name'"'
 		if [[ -z "$orig_val" ]]; then
@@ -57,7 +63,7 @@ gsu_check_options()
 			;;
 		num)
 			gsu_is_a_number "$val"
-			(($ret < 0)) && return
+			((ret < 0)) && return
 			;;
 		*)
 			ret=-$E_GSU_BAD_OPTION_TYPE
@@ -72,14 +78,14 @@ gsu_check_options()
 gsu_check_options_or_die()
 {
 	gsu_check_options
-	if (($ret < 0)); then
+	if ((ret < 0)); then
 		gsu_err_msg
 		exit 1
 	fi
 }
 
 if [[ "$(type -t _gsu_setup)" != "function" ]]; then
-	gsu_dir=${gsu_dir:=${HOME:-}/.gsu}
-	. $gsu_dir/common || exit 1
+	gsu_dir=${gsu_dir:-${BASH_SOURCE[0]%/*}}
+	. "$gsu_dir/common" || exit 1
 	_gsu_setup
 fi