E_GSU_NEED_VALUE value required but not given
E_GSU_BAD_BOOL bad value for boolian option
E_GSU_BAD_OPTION_TYPE invalid option type
+E_GSU_BAD_ARG_COUNT invalid number of arguments
E_NO_DEFAULT missing default value
$gsu_errors
"
}
export -f gsu_is_a_number
+# Check number of arguments.
+#
+# Usage: gsu_check_arg_count <num_given> <num1> [<num2>]
+#
+# Check that <num_given> is between <num1> and <num2> inclusively.
+# If only <num1> ist given, num2 is assumed to be infinity.
+#
+# Examples:
+# 0 0 no argument allowed
+# 1 1 exactly one argument required
+# 0 2 at most two arguments admissible
+# 2 at least two arguments reqired
+#
+gsu_check_arg_count()
+{
+ ret=-$E_GSU_BAD_ARG_COUNT
+ if [[ $# -eq 2 ]]; then # only num1 is given
+ result="at least $2 args required, $1 given"
+ [[ $1 -lt $2 ]] && return
+ ret=$GSU_SUCCESS
+ return
+ fi
+ # num1 and num2 given
+ result="need at least $2 args, $1 given"
+ [[ $1 -lt $2 ]] && return
+ result="need at most $3 args, $1 given"
+ [[ $1 -gt $3 ]] && return
+ ret=$GSU_SUCCESS
+}
+export -f gsu_check_arg_count
+
gsu_short_msg()
{
echo "$1" 1>&2
}
export -f gsu_date_msg
+
+
_gsu_banner_msg()
{
local txt="*** $_gsu_self --"
# only. Moreover it must not start with [a-zA-Z].
ret=-$E_GSU_BAD_CONFIG_VAR
- result="$name"
+ result="name: '$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;
[[ $? -ne 0 ]] && return
esac
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 "$option_type" in
_gsu_init_errors
_gsu_check_options
if [[ "$ret" -lt 0 ]]; then
- if [[ "$1" != "help" && "$1" != "man" && "$1" != "prefs" ]]; then
+ if [[ "$1" != "help" && "$1" != "man" ]]; then
gsu_err_msg
exit 1
fi