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authoretheisen <etheisen@cvs.openbsd.org>1996-09-14 19:02:02 +0000
committeretheisen <etheisen@cvs.openbsd.org>1996-09-14 19:02:02 +0000
commit6a4f3d0fd940c1e7052ddf23907f0e297dc42f4b (patch)
tree712fd665d6b150ef04906975a7493d87d38a1a8a /gnu/usr.bin/groff/troff/symbol.h
parent9cf27152dae9dbf80b167732c78c47baee90ddc5 (diff)
Third time because import sucks.
Diffstat (limited to 'gnu/usr.bin/groff/troff/symbol.h')
-rw-r--r--gnu/usr.bin/groff/troff/symbol.h73
1 files changed, 73 insertions, 0 deletions
diff --git a/gnu/usr.bin/groff/troff/symbol.h b/gnu/usr.bin/groff/troff/symbol.h
new file mode 100644
index 00000000000..88e0fff394c
--- /dev/null
+++ b/gnu/usr.bin/groff/troff/symbol.h
@@ -0,0 +1,73 @@
+// -*- 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. */
+
+#define DONT_STORE 1
+#define MUST_ALREADY_EXIST 2
+
+class symbol {
+ static const char **table;
+ static int table_used;
+ static int table_size;
+ static char *block;
+ static int block_size;
+ const char *s;
+public:
+ symbol(const char *p, int how = 0);
+ symbol();
+ unsigned long hash() const;
+ int operator ==(symbol) const;
+ int operator !=(symbol) const;
+ const char *contents() const;
+ int is_null() const;
+};
+
+
+extern const symbol NULL_SYMBOL;
+
+inline symbol::symbol() : s(0)
+{
+}
+
+inline int symbol::operator==(symbol p) const
+{
+ return s == p.s;
+}
+
+inline int symbol::operator!=(symbol p) const
+{
+ return s != p.s;
+}
+
+inline unsigned long symbol::hash() const
+{
+ return (unsigned long)s;
+}
+
+inline const char *symbol::contents() const
+{
+ return s;
+}
+
+inline int symbol::is_null() const
+{
+ return s == 0;
+}
+
+symbol concat(symbol, symbol);