X-Git-Url: http://git.tuebingen.mpg.de/?a=blobdiff_plain;f=funcs%2Fgsu;h=b409bc50bc75d50969d60a800c0710358c34c2d9;hb=5102a3ed6cf2d4b1addecf52495faafc04107cc5;hp=75e569cb0a00789badb00735bf3a36f8391ce6db;hpb=b3e4039f76f3af4dc2c11642e9edd8309161951c;p=gsu.git

diff --git a/funcs/gsu b/funcs/gsu
index 75e569c..b409bc5 100644
--- a/funcs/gsu
+++ b/funcs/gsu
@@ -45,17 +45,25 @@ gsu_is_a_number()
 }
 export -f gsu_is_a_number
 
+# Check number of arguments.
+#
 # Usage: gsu_check_arg_count <num_given> <num1> [<num2>]
 #
-# If only <num1> ist given, then <num_given> must equal <num1>.
-# Otherwise, <num1>..<num2> is treated as a range and it is checked
-# that <num_given> lies between <num1> and <num2> inclusively.
+# Check that <num_given> is between <num1> and <num2> inclusively.
+# If only <num1> ist given, num2 is assumed to be infinity.
+#
+# Examples:
+# 	0 0 no argument allowed
+# 	1 1 exactly one argument required
+# 	0 2 at most two arguments admissible
+# 	2   at least two arguments reqired
+#
 gsu_check_arg_count()
 {
 	ret=-$E_GSU_BAD_ARG_COUNT
 	if [[ $# -eq 2 ]]; then # only num1 is given
-		result="exactly $2 args needed, $1 given"
-		[[ $1 -ne $2 ]] && return
+		result="at least $2 args required, $1 given"
+		[[ $1 -lt $2 ]] && return
 		ret=$GSU_SUCCESS
 		return
 	fi
@@ -357,7 +365,7 @@ _gsu_check_options()
 			return
 		esac
 
-		eval ${gsu_config_var_prefix}_$name="\"${val:=$default_value}\""
+		eval ${gsu_config_var_prefix}_$name='"'${val:=$default_value}'"'
 		# Check option type. ATM, only num and string are supported
 		# Other types may be added without breaking compatibility
 		case "$option_type" in