1 /* gunibreak.c - line break properties
3 * Copyright 2000 Red Hat, Inc.
5 * SPDX-License-Identifier: LGPL-2.1-or-later
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public License
18 * along with this library; if not, see <http://www.gnu.org/licenses/>.
25 #include "gunibreak.h"
27 #define TPROP_PART1(Page, Char) \
28 ((break_property_table_part1[Page] >= G_UNICODE_MAX_TABLE_INDEX) \
29 ? (break_property_table_part1[Page] - G_UNICODE_MAX_TABLE_INDEX) \
30 : (break_property_data[break_property_table_part1[Page]][Char]))
32 #define TPROP_PART2(Page, Char) \
33 ((break_property_table_part2[Page] >= G_UNICODE_MAX_TABLE_INDEX) \
34 ? (break_property_table_part2[Page] - G_UNICODE_MAX_TABLE_INDEX) \
35 : (break_property_data[break_property_table_part2[Page]][Char]))
38 (((Char) <= G_UNICODE_LAST_CHAR_PART1) \
39 ? TPROP_PART1 ((Char) >> 8, (Char) & 0xff) \
40 : (((Char) >= 0xe0000 && (Char) <= G_UNICODE_LAST_CHAR) \
41 ? TPROP_PART2 (((Char) - 0xe0000) >> 8, (Char) & 0xff) \
42 : G_UNICODE_BREAK_UNKNOWN))
45 * g_unichar_break_type:
46 * @c: a Unicode character
48 * Determines the break type of @c. @c should be a Unicode character
49 * (to derive a character from UTF-8 encoded text, use
50 * g_utf8_get_char()). The break type is used to find word and line
51 * breaks ("text boundaries"), Pango implements the Unicode boundary
52 * resolution algorithms and normally you would use a function such
53 * as pango_break() instead of caring about break types yourself.
55 * Returns: the break type of @c
58 g_unichar_break_type (gunichar c)