1 /* gunibreak.c - line break properties

     2  *  Copyright 2000 Red Hat, Inc.

     3  * Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.

     4  *

     5  * The Gnome Library is free software; you can redistribute it and/or

     6  * modify it under the terms of the GNU Lesser General Public License as

     7  * published by the Free Software Foundation; either version 2 of the

     8  * License, or (at your option) any later version.

     9  *

    10  * The Gnome Library is distributed in the hope that it will be useful,

    11  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    13  * Lesser General Public License for more details.

    14  *

    15  * You should have received a copy of the GNU Lesser General Public

    16  * License along with the Gnome Library; see the file COPYING.LIB.  If not,

    17  * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,

    18  *   Boston, MA 02111-1307, USA.

    19  */

    20 

    21 #include "config.h"

    22 

    23 #include <stdlib.h>

    24 

    25 #include "glib.h"

    26 #include "gunibreak.h"

    27 #include "galias.h"

    28 

    29 #define TPROP_PART1(Page, Char) \

    30   ((break_property_table_part1[Page] >= G_UNICODE_MAX_TABLE_INDEX) \

    31    ? (break_property_table_part1[Page] - G_UNICODE_MAX_TABLE_INDEX) \

    32    : (break_property_data[break_property_table_part1[Page]][Char]))

    33 

    34 #define TPROP_PART2(Page, Char) \

    35   ((break_property_table_part2[Page] >= G_UNICODE_MAX_TABLE_INDEX) \

    36    ? (break_property_table_part2[Page] - G_UNICODE_MAX_TABLE_INDEX) \

    37    : (break_property_data[break_property_table_part2[Page]][Char]))

    38 

    39 #define PROP(Char) \

    40   (((Char) <= G_UNICODE_LAST_CHAR_PART1) \

    41    ? TPROP_PART1 ((Char) >> 8, (Char) & 0xff) \

    42    : (((Char) >= 0xe0000 && (Char) <= G_UNICODE_LAST_CHAR) \

    43       ? TPROP_PART2 (((Char) - 0xe0000) >> 8, (Char) & 0xff) \

    44       : G_UNICODE_BREAK_UNKNOWN))

    45 

    46 /**

    47  * g_unichar_break_type:

    48  * @c: a Unicode character

    49  * 

    50  * Determines the break type of @c. @c should be a Unicode character

    51  * (to derive a character from UTF-8 encoded text, use

    52  * g_utf8_get_char()). The break type is used to find word and line

    53  * breaks ("text boundaries"), Pango implements the Unicode boundary

    54  * resolution algorithms and normally you would use a function such

    55  * as pango_break() instead of caring about break types yourself.

    56  * 

    57  * Return value: the break type of @c

    58  **/

    59 EXPORT_C GUnicodeBreakType

    60 g_unichar_break_type (gunichar c)

    61 {

    62   return PROP (c);

    63 }

    64 

    65 #define __G_UNIBREAK_C__

    66 #include "galiasdef.c"