mirror of https://gitee.com/openkylin/glib2.0.git
62 lines
2.1 KiB
C
62 lines
2.1 KiB
C
/* gunibreak.c - line break properties
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*
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* Copyright 2000 Red Hat, Inc.
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*
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* SPDX-License-Identifier: LGPL-2.1-or-later
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <stdlib.h>
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#include "gunibreak.h"
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#define TPROP_PART1(Page, Char) \
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((break_property_table_part1[Page] >= G_UNICODE_MAX_TABLE_INDEX) \
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? (break_property_table_part1[Page] - G_UNICODE_MAX_TABLE_INDEX) \
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: (break_property_data[break_property_table_part1[Page]][Char]))
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#define TPROP_PART2(Page, Char) \
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((break_property_table_part2[Page] >= G_UNICODE_MAX_TABLE_INDEX) \
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? (break_property_table_part2[Page] - G_UNICODE_MAX_TABLE_INDEX) \
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: (break_property_data[break_property_table_part2[Page]][Char]))
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#define PROP(Char) \
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(((Char) <= G_UNICODE_LAST_CHAR_PART1) \
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? TPROP_PART1 ((Char) >> 8, (Char) & 0xff) \
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: (((Char) >= 0xe0000 && (Char) <= G_UNICODE_LAST_CHAR) \
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? TPROP_PART2 (((Char) - 0xe0000) >> 8, (Char) & 0xff) \
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: G_UNICODE_BREAK_UNKNOWN))
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/**
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* g_unichar_break_type:
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* @c: a Unicode character
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*
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* Determines the break type of @c. @c should be a Unicode character
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* (to derive a character from UTF-8 encoded text, use
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* g_utf8_get_char()). The break type is used to find word and line
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* breaks ("text boundaries"), Pango implements the Unicode boundary
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* resolution algorithms and normally you would use a function such
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* as pango_break() instead of caring about break types yourself.
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*
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* Returns: the break type of @c
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**/
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GUnicodeBreakType
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g_unichar_break_type (gunichar c)
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{
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return PROP (c);
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}
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