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2a3c1174c3
This introduces a few gdb-specific %p format suffixes. This is useful for emitting gdb-specific output in an ergonomic way. It also yields code that is more i18n-friendly. The comment before ui_out::message explains the details. Note that the tests had to change a little. When using one of the gdb printf functions with styling, there can be spurious style changes emitted to the output. This did not seem worthwhile to fix, as the low-level output functions are rather spaghetti-ish already, and I didn't want to make them even worse. This change also necessitated adding support for "*" as precision and width in format_pieces. These are used in various spots in gdb, and it seemed better to me to implement them than to remove the uses. gdb/ChangeLog 2019-10-01 Pedro Alves <palves@redhat.com> Tom Tromey <tom@tromey.com> * unittests/format_pieces-selftests.c: Add gdb_format parameter. (test_gdb_formats): New function. (run_tests): Call it. (test_format_specifier): Update. * utils.h (fputs_filtered): Update comment. (vfprintf_styled, vfprintf_styled_no_gdbfmt) (fputs_styled_unfiltered): Declare. * utils.c (fputs_styled_unfiltered): New function. (vfprintf_maybe_filtered): Add gdbfmt parameter. (vfprintf_filtered): Update. (vfprintf_unfiltered, vprintf_filtered): Update. (vfprintf_styled, vfprintf_styled_no_gdbfmt): New functions. * ui-out.h (enum ui_out_flag) <unfiltered_output, disallow_ui_out_field>: New constants. (enum class field_kind): New. (struct base_field_s, struct signed_field_s): New. (signed_field): New function. (struct string_field_s): New. (string_field): New function. (struct styled_string_s): New. (styled_string): New function. (class ui_out) <message>: Add comment. <vmessage, call_do_message>: New methods. <do_message>: Add style parameter. * ui-out.c (ui_out::call_do_message, ui_out::vmessage): New methods. (ui_out::message): Rewrite. * mi/mi-out.h (class mi_ui_out) <do_message>: Add style parameter. * mi/mi-out.c (mi_ui_out::do_message): Add style parameter. * gdbsupport/format.h (class format_pieces) <format_pieces>: Add gdb_extensions parameter. (class format_piece): Add parameter to constructor. (n_int_args): New field. * gdbsupport/format.c (format_pieces::format_pieces): Add gdb_extensions parameter. Handle '*'. * cli-out.h (class cli_ui_out) <do_message>: Add style parameter. * cli-out.c (cli_ui_out::do_message): Add style parameter. Call vfprintf_styled_no_gdbfmt. (cli_ui_out::do_field_string, cli_ui_out::do_spaces) (cli_ui_out::do_text, cli_ui_out::field_separator): Allow unfiltered output. * ui-style.h (struct ui_file_style) <ptr>: New method. gdb/testsuite/ChangeLog 2019-10-01 Tom Tromey <tom@tromey.com> * gdb.base/style.exp: Update tests.
96 lines
2.6 KiB
C
96 lines
2.6 KiB
C
/* Self tests for format_pieces for GDB, the GNU debugger.
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Copyright (C) 2018-2019 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "gdbsupport/format.h"
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#include "gdbsupport/selftest.h"
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namespace selftests {
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namespace format_pieces {
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/* Verify that parsing STR gives pieces equal to EXPECTED_PIECES. */
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static void
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check (const char *str, const std::vector<format_piece> &expected_pieces,
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bool gdb_format = false)
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{
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::format_pieces pieces (&str, gdb_format);
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SELF_CHECK ((pieces.end () - pieces.begin ()) == expected_pieces.size ());
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SELF_CHECK (std::equal (pieces.begin (), pieces.end (),
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expected_pieces.begin ()));
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}
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static void
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test_escape_sequences ()
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{
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check ("This is an escape sequence: \\e",
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{
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format_piece ("This is an escape sequence: \e", literal_piece, 0),
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});
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}
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static void
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test_format_specifier ()
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{
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/* The format string here ends with a % sequence, to ensure we don't
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see a trailing empty literal piece. */
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check ("Hello\\t %d%llx%%d%d", /* ARI: %ll */
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{
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format_piece ("Hello\t ", literal_piece, 0),
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format_piece ("%d", int_arg, 0),
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format_piece ("%llx", long_long_arg, 0), /* ARI: %ll */
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format_piece ("%%d", literal_piece, 0),
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format_piece ("%d", int_arg, 0),
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});
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}
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static void
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test_gdb_formats ()
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{
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check ("Hello\\t \"%p[%pF%ps%*.*d%p]\"",
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{
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format_piece ("Hello\\t \"", literal_piece, 0),
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format_piece ("%p[", ptr_arg, 0),
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format_piece ("%pF", ptr_arg, 0),
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format_piece ("%ps", ptr_arg, 0),
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format_piece ("%*.*d", int_arg, 2),
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format_piece ("%p]", ptr_arg, 0),
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format_piece ("\"", literal_piece, 0),
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}, true);
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}
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static void
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run_tests ()
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{
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test_escape_sequences ();
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test_format_specifier ();
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test_gdb_formats ();
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}
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} /* namespace format_pieces */
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} /* namespace selftests */
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void
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_initialize_format_pieces_selftests ()
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{
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selftests::register_test ("format_pieces",
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selftests::format_pieces::run_tests);
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}
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