blob: 66c475634d0446fe21a1be178cb7fab6e947be03 [file] [log] [blame]
/* gunibreak.c - line break properties
*
* Copyright 2000 Red Hat, Inc.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <stdlib.h>
#include "gunibreak.h"
#define TPROP_PART1(Page, Char) \
((break_property_table_part1[Page] >= G_UNICODE_MAX_TABLE_INDEX) \
? (break_property_table_part1[Page] - G_UNICODE_MAX_TABLE_INDEX) \
: (break_property_data[break_property_table_part1[Page]][Char]))
#define TPROP_PART2(Page, Char) \
((break_property_table_part2[Page] >= G_UNICODE_MAX_TABLE_INDEX) \
? (break_property_table_part2[Page] - G_UNICODE_MAX_TABLE_INDEX) \
: (break_property_data[break_property_table_part2[Page]][Char]))
#define PROP(Char) \
(((Char) <= G_UNICODE_LAST_CHAR_PART1) \
? TPROP_PART1 ((Char) >> 8, (Char) & 0xff) \
: (((Char) >= 0xe0000 && (Char) <= G_UNICODE_LAST_CHAR) \
? TPROP_PART2 (((Char) - 0xe0000) >> 8, (Char) & 0xff) \
: G_UNICODE_BREAK_UNKNOWN))
/**
* g_unichar_break_type:
* @c: a Unicode character
*
* Determines the break type of @c. @c should be a Unicode character
* (to derive a character from UTF-8 encoded text, use
* g_utf8_get_char()). The break type is used to find word and line
* breaks ("text boundaries"), Pango implements the Unicode boundary
* resolution algorithms and normally you would use a function such
* as pango_break() instead of caring about break types yourself.
*
* Returns: the break type of @c
**/
GUnicodeBreakType
g_unichar_break_type (gunichar c)
{
return PROP (c);
}