mirror of
https://github.com/Mercury-Language/mercury.git
synced 2026-04-15 17:33:38 +00:00
33eb3028f5
tests/accumulator/*.m:
tests/analysis_*/*.m:
tests/benchmarks*/*.m:
tests/debugger*/*.{m,exp,inp}:
tests/declarative_debugger*/*.{m,exp,inp}:
tests/dppd*/*.m:
tests/exceptions*/*.m:
tests/general*/*.m:
tests/grade_subdirs*/*.m:
tests/hard_coded*/*.m:
Make these tests use four-space indentation, and ensure that
each module is imported on its own line. (I intend to use the latter
to figure out which subdirectories' tests can be executed in parallel.)
These changes usually move code to different lines. For the debugger tests,
specify the new line numbers in .inp files and expect them in .exp files.
87 lines
2.7 KiB
Mathematica
87 lines
2.7 KiB
Mathematica
%---------------------------------------------------------------------------%
|
|
% vim: ts=4 sw=4 et ft=mercury
|
|
%---------------------------------------------------------------------------%
|
|
|
|
:- module stream_putback_binary.
|
|
:- interface.
|
|
|
|
:- import_module io.
|
|
|
|
:- pred main(io::di, io::uo) is det.
|
|
|
|
%---------------------------------------------------------------------------%
|
|
%---------------------------------------------------------------------------%
|
|
|
|
:- implementation.
|
|
|
|
:- import_module char.
|
|
:- import_module int.
|
|
:- import_module list.
|
|
:- import_module require.
|
|
:- import_module string.
|
|
|
|
%---------------------------------------------------------------------------%
|
|
|
|
main(!IO) :-
|
|
io.open_binary_input("stream_putback.data", OpenRes, !IO),
|
|
(
|
|
OpenRes = ok(Stream),
|
|
print_position(Stream, !IO), % pos 0
|
|
print_read_byte(Stream, !IO), % pos 1
|
|
print_relseek(Stream, 1, !IO), % pos 2
|
|
print_read_byte(Stream, !IO), % pos 3
|
|
print_putback(Stream, 'X', !IO), % pos 2
|
|
print_read_byte(Stream, !IO), % X, pos 3
|
|
print_read_byte(Stream, !IO), % \n, pos 4
|
|
print_read_byte(Stream, !IO), % eof, pos 4
|
|
print_putback(Stream, 'Y', !IO), % pos 3
|
|
print_relseek(Stream, -2, !IO), % pos 1; pushback dropped
|
|
print_read_byte(Stream, !IO), % b, pos 2
|
|
io.close_binary_input(Stream, !IO)
|
|
;
|
|
OpenRes = error(Error),
|
|
error(io.error_message(Error))
|
|
).
|
|
|
|
:- pred print_read_byte(io.binary_input_stream::in, io::di, io::uo) is det.
|
|
|
|
print_read_byte(Stream, !IO) :-
|
|
io.read_byte(Stream, ReadRes, !IO),
|
|
(
|
|
ReadRes = ok(Byte),
|
|
io.write_string("Read: ", !IO),
|
|
io.write(det_from_int(Byte) : char, !IO),
|
|
io.nl(!IO)
|
|
;
|
|
ReadRes = eof,
|
|
io.write_string("Read: eof\n", !IO)
|
|
;
|
|
ReadRes = error(Error),
|
|
error(io.error_message(Error))
|
|
),
|
|
print_position(Stream, !IO).
|
|
|
|
:- pred print_putback(io.binary_input_stream::in, char::in, io::di, io::uo)
|
|
is det.
|
|
|
|
print_putback(Stream, Char, !IO) :-
|
|
io.putback_byte(Stream, char.to_int(Char), !IO),
|
|
io.write_string("Put back: ", !IO),
|
|
io.write(Char, !IO),
|
|
io.nl(!IO),
|
|
print_position(Stream, !IO).
|
|
|
|
:- pred print_relseek(io.binary_input_stream::in, int::in, io::di, io::uo)
|
|
is det.
|
|
|
|
print_relseek(Stream, Offset, !IO) :-
|
|
io.seek_binary_input(Stream, cur, Offset, !IO),
|
|
io.format("Seek: %+d\n", [i(Offset)], !IO),
|
|
print_position(Stream, !IO).
|
|
|
|
:- pred print_position(io.binary_input_stream::in, io::di, io::uo) is det.
|
|
|
|
print_position(Stream, !IO) :-
|
|
io.binary_input_stream_offset(Stream, Offset, !IO),
|
|
io.format("Position: %d\n\n", [i(Offset)], !IO).
|