1 files changed, 96 insertions, 0 deletions
diff --git a/lib/wctype-impl.h b/lib/wctype-impl.h
new file mode 100644
index 0000000..26d68b4
--- /dev/null
+++ b/lib/wctype-impl.h
@@ -0,0 +1,96 @@
+/* Get descriptor for a wide character property.
+   Copyright (C) 2011-2024 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2011.
+
+   This file 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 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 for more details.
+
+   You should have received a copy of the GNU Lesser General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+wctype_t
+wctype (const char* name)
+{
+  switch (name[0])
+    {
+    case 'a':
+      switch (name[1])
+        {
+        case 'l':
+          switch (name[2])
+            {
+            case 'n':
+              if (strcmp (name + 3, "um") == 0)
+                return (wctype_t) iswalnum;
+              break;
+            case 'p':
+              if (strcmp (name + 3, "ha") == 0)
+                return (wctype_t) iswalpha;
+              break;
+            default:
+              break;
+            }
+          break;
+        default:
+          break;
+        }
+      break;
+    case 'b':
+      if (strcmp (name + 1, "lank") == 0)
+        return (wctype_t) iswblank;
+      break;
+    case 'c':
+      if (strcmp (name + 1, "ntrl") == 0)
+        return (wctype_t) iswcntrl;
+      break;
+    case 'd':
+      if (strcmp (name + 1, "igit") == 0)
+        return (wctype_t) iswdigit;
+      break;
+    case 'g':
+      if (strcmp (name + 1, "raph") == 0)
+        return (wctype_t) iswgraph;
+      break;
+    case 'l':
+      if (strcmp (name + 1, "ower") == 0)
+        return (wctype_t) iswlower;
+      break;
+    case 'p':
+      switch (name[1])
+        {
+        case 'r':
+          if (strcmp (name + 2, "int") == 0)
+            return (wctype_t) iswprint;
+          break;
+        case 'u':
+          if (strcmp (name + 2, "nct") == 0)
+            return (wctype_t) iswpunct;
+          break;
+        default:
+          break;
+        }
+      break;
+    case 's':
+      if (strcmp (name + 1, "pace") == 0)
+        return (wctype_t) iswspace;
+      break;
+    case 'u':
+      if (strcmp (name + 1, "pper") == 0)
+        return (wctype_t) iswupper;
+      break;
+    case 'x':
+      if (strcmp (name + 1, "digit") == 0)
+        return (wctype_t) iswxdigit;
+      break;
+    default:
+      break;
+    }
+  return NULL;
+}