mirror of
https://github.com/Mercury-Language/mercury.git
synced 2026-04-21 20:33:55 +00:00
386f65f31f
Estimated hours taken: 0.5 Bug fix for getopt (from Philip Dart). library/getopt.m: Handle "-" correctly - it was silently ignoring it. It should be treated as if it is a normal argument, not an option. tests/hard_coded/Mmake: tests/hard_coded/getopt_test.m: tests/hard_coded/getopt_test.exp: Test case for this bug.
80 lines
1.8 KiB
Mathematica
80 lines
1.8 KiB
Mathematica
%
|
|
% Regression test.
|
|
%
|
|
% Name: getopt_test.m
|
|
%
|
|
% Description of bug:
|
|
% "-" was not being handled correctly by getopt. It should be left
|
|
% alone, but was being processed by an option.
|
|
%
|
|
% Symptom(s) of bug:
|
|
% "-" as an option would be silently ignored.
|
|
%
|
|
% Date bug existed: 8-July-1997
|
|
%
|
|
% Author: trd
|
|
%
|
|
% Note: This bug report (and fix) provided by Philip Dart.
|
|
|
|
%-----------------------------------------------------------------------------%
|
|
|
|
:- module getopt_test.
|
|
:- interface.
|
|
:- import_module io, getopt.
|
|
|
|
:- type option
|
|
---> foo
|
|
; bar.
|
|
|
|
:- type option_table == option_table(option).
|
|
|
|
:- pred short_option(character::in, option::out) is semidet.
|
|
:- pred long_option(string::in, option::out) is semidet.
|
|
:- pred option_defaults(option::out, option_data::out) is nondet.
|
|
:- pred option_default(option::out, option_data::out) is multidet.
|
|
|
|
:- pred main(io__state::di, io__state::uo) is det.
|
|
|
|
%-----------------------------------------------------------------------------%
|
|
|
|
:- implementation.
|
|
:- import_module require, list, std_util, bool.
|
|
|
|
option_defaults(Option, Default) :-
|
|
semidet_succeed,
|
|
option_default(Option, Default).
|
|
|
|
option_default(foo, string("happy")).
|
|
option_default(bar, bool(yes)).
|
|
|
|
short_option('f', foo).
|
|
short_option('b', bar).
|
|
|
|
long_option("foo", foo).
|
|
long_option("bar", bar).
|
|
|
|
main -->
|
|
{ getopt__process_options(option_ops(short_option, long_option,
|
|
option_defaults), ["-"], Left, MaybeOptionTable) },
|
|
(
|
|
{ MaybeOptionTable = ok(OptionTable) }
|
|
->
|
|
{ getopt__lookup_bool_option(OptionTable, bar,
|
|
Bar) },
|
|
{ getopt__lookup_string_option(OptionTable, foo,
|
|
FooStr) },
|
|
io__write_string("option bar: `"),
|
|
io__write(Bar),
|
|
io__write_string("'\n"),
|
|
io__write_string("option foo: `"),
|
|
io__write_string(FooStr),
|
|
io__write_string("'\n"),
|
|
|
|
io__write(Left),
|
|
io__write_string("\n")
|
|
|
|
;
|
|
{ error("unable to process options") }
|
|
).
|
|
|