1 files changed, 63 insertions, 0 deletions
diff --git a/lib/unictype/joininggroup_byname.c b/lib/unictype/joininggroup_byname.c
new file mode 100644
index 0000000..0bfdd77
--- /dev/null
+++ b/lib/unictype/joininggroup_byname.c
@@ -0,0 +1,63 @@
+/* Arabic joining group of Unicode characters.
+   Copyright (C) 2011-2015 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2011.
+
+   This program 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 3 of the License, or
+   (at your option) any later version.
+
+   This program 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 program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include "unictype.h"
+
+#include <string.h>
+
+#include "unictype/joininggroup_byname.h"
+
+int
+uc_joining_group_byname (const char *joining_group_name)
+{
+  size_t len;
+
+  len = strlen (joining_group_name);
+  if (len <= MAX_WORD_LENGTH)
+    {
+      char buf[MAX_WORD_LENGTH + 1];
+      const struct named_joining_group *found;
+
+      /* Copy joining_group_name into buf, converting '_' and '-' to ' '.  */
+      {
+        const char *p = joining_group_name;
+        char *q = buf;
+
+        for (;; p++, q++)
+          {
+            char c = *p;
+
+            if (c == '_' || c == '-')
+              c = ' ';
+            *q = c;
+            if (c == '\0')
+              break;
+          }
+      }
+      /* Here q == buf + len.  */
+
+      /* Do a hash table lookup, with case-insensitive comparison.  */
+      found = uc_joining_group_lookup (buf, len);
+      if (found != NULL)
+        return found->joining_group;
+    }
+  /* Invalid joining group name.  */
+  return -1;
+}