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       1                 :             : /* gunibreak.c - line break properties
       2                 :             :  *
       3                 :             :  *  Copyright 2000 Red Hat, Inc.
       4                 :             :  *
       5                 :             :  * SPDX-License-Identifier: LGPL-2.1-or-later
       6                 :             :  *
       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.
      11                 :             :  *
      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.
      16                 :             :  *
      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/>.
      19                 :             :  */
      20                 :             : 
      21                 :             : #include "config.h"
      22                 :             : 
      23                 :             : #include <stdlib.h>
      24                 :             : 
      25                 :             : #include "gunibreak.h"
      26                 :             : 
      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]))
      31                 :             : 
      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]))
      36                 :             : 
      37                 :             : #define PROP(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))
      43                 :             : 
      44                 :             : /**
      45                 :             :  * g_unichar_break_type:
      46                 :             :  * @c: a Unicode character
      47                 :             :  * 
      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.
      54                 :             :  * 
      55                 :             :  * Returns: the break type of @c
      56                 :             :  **/
      57                 :             : GUnicodeBreakType
      58                 :          48 : g_unichar_break_type (gunichar c)
      59                 :             : {
      60                 :          48 :   return PROP (c);
      61                 :             : }