1 files changed, 56 insertions, 0 deletions
diff --git a/lib/unictype/incb_of.c b/lib/unictype/incb_of.c
new file mode 100644
index 00000000..91f5121f
--- /dev/null
+++ b/lib/unictype/incb_of.c
@@ -0,0 +1,56 @@
+/* Indic_Conjunct_Break attribute of Unicode characters.
+   Copyright (C) 2011-2024 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2024.
+
+   This file is free software.
+   It is dual-licensed under "the GNU LGPLv3+ or the GNU GPLv2+".
+   You can redistribute it and/or modify it under either
+     - the terms of the GNU Lesser General Public License as published
+       by the Free Software Foundation, either version 3, or (at your
+       option) any later version, or
+     - the terms of the GNU General Public License as published by the
+       Free Software Foundation; either version 2, or (at your option)
+       any later version, or
+     - the same dual license "the GNU LGPLv3+ or the GNU GPLv2+".
+
+   This file 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 and the GNU General Public License
+   for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License and of the GNU General Public License along with this
+   program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include "unictype.h"
+
+/* Define u_indic_conjunct_break table.  */
+#include "incb_of.h"
+
+int
+uc_indic_conjunct_break (ucs4_t uc)
+{
+  unsigned int index1 = uc >> indic_conjunct_break_header_0;
+  if (index1 < indic_conjunct_break_header_1)
+    {
+      int lookup1 = u_indic_conjunct_break.level1[index1];
+      if (lookup1 >= 0)
+        {
+          unsigned int index2 = (uc >> indic_conjunct_break_header_2) & indic_conjunct_break_header_3;
+          int lookup2 = u_indic_conjunct_break.level2[lookup1 + index2];
+          if (lookup2 >= 0)
+            {
+              unsigned int index3 = (uc & indic_conjunct_break_header_4) + lookup2;
+              /* level3 contains 2-bit values.  */
+              unsigned int lookup3 = u_indic_conjunct_break.level3[index3 >> 3];
+
+              return (lookup3 >> (2 * (index3 & 7))) & 3;
+            }
+        }
+    }
+  return UC_INDIC_CONJUNCT_BREAK_NONE;
+}