1 files changed, 56 insertions, 0 deletions
diff --git a/gnu/usr.bin/groff/libgroff/cmap.cc b/gnu/usr.bin/groff/libgroff/cmap.cc
new file mode 100644
index 0000000..ce834cc
--- /dev/null
+++ b/gnu/usr.bin/groff/libgroff/cmap.cc
@@ -0,0 +1,56 @@
+// -*- C++ -*-
+/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
+     Written by James Clark (jjc@jclark.com)
+
+This file is part of groff.
+
+groff is free software; you can redistribute it and/or modify it under
+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.
+
+groff 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 General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License along
+with groff; see the file COPYING.  If not, write to the Free Software
+Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <ctype.h>
+#include "cmap.h"
+
+cmap cmlower(CMAP_BUILTIN);
+cmap cmupper(CMAP_BUILTIN);
+
+#ifdef isascii
+#define ISASCII(c) isascii(c)
+#else
+#define ISASCII(c) (1)
+#endif
+
+cmap::cmap()
+{
+  unsigned char *p = v;
+  for (int i = 0; i <= UCHAR_MAX; i++)
+    p[i] = i;
+}
+
+cmap::cmap(cmap_builtin)
+{
+  // these are initialised by cmap_init::cmap_init()
+}
+
+int cmap_init::initialised = 0;
+
+cmap_init::cmap_init()
+{
+  if (initialised)
+    return;
+  initialised = 1;
+  for (int i = 0; i <= UCHAR_MAX; i++) {
+    cmupper.v[i] = ISASCII(i) && islower(i) ? toupper(i) : i;
+    cmlower.v[i] = ISASCII(i) && isupper(i) ? tolower(i) : i;
+  }
+}