Import Upstream version 2.72.4

glib/gunibreak.c

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+/* gunibreak.c - line break properties
+ *
+ *  Copyright 2000 Red Hat, Inc.
+ *
+ * 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);
+}