1 files changed, 92 insertions, 0 deletions
diff --git a/contrib/groff/troff/dictionary.h b/contrib/groff/troff/dictionary.h
new file mode 100644
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--- /dev/null
+++ b/contrib/groff/troff/dictionary.h
@@ -0,0 +1,92 @@
+// -*- 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+
+
+// there is no distinction between name with no value and name with NULL value
+// null names are not permitted (they will be ignored).
+
+struct association {
+  symbol s;
+  void *v;
+  association() :  v(0) {}
+};
+
+class dictionary;
+
+class dictionary_iterator {
+  dictionary *dict;
+  int i;
+public:
+  dictionary_iterator(dictionary &);
+  int get(symbol *, void **);
+};
+
+class dictionary {
+  int size;
+  int used;
+  double threshold;
+  double factor;
+  association *table;
+  void rehash(int);
+public:
+  dictionary(int);
+  void *lookup(symbol s, void *v=0); // returns value associated with key
+  void *lookup(const char *);
+  // if second parameter not NULL, value will be replaced
+  void *remove(symbol);
+  friend class dictionary_iterator;
+};
+
+class object {
+  int rcount;
+ public:
+  object();
+  virtual ~object();
+  void add_reference();
+  void remove_reference();
+};
+
+class object_dictionary;
+
+class object_dictionary_iterator {
+  dictionary_iterator di;
+public:
+  object_dictionary_iterator(object_dictionary &);
+  int get(symbol *, object **);
+};
+
+class object_dictionary {
+  dictionary d;
+public:
+  object_dictionary(int);
+  object *lookup(symbol nm);
+  void define(symbol nm, object *obj);
+  void rename(symbol oldnm, symbol newnm);
+  void remove(symbol nm);
+  int alias(symbol newnm, symbol oldnm);
+  friend class object_dictionary_iterator;
+};
+
+
+inline int object_dictionary_iterator::get(symbol *sp, object **op)
+{
+  return di.get(sp, (void **)op);
+}