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author | pst <pst@FreeBSD.org> | 1996-09-07 16:18:32 +0000 |
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committer | pst <pst@FreeBSD.org> | 1996-09-07 16:18:32 +0000 |
commit | 7fdf49473c970aa96ee1bae16928d1db23643228 (patch) | |
tree | 0abcbad9804fcf7a7157983937cadcf61449b840 /contrib/groff/troff/dictionary.h | |
download | FreeBSD-src-7fdf49473c970aa96ee1bae16928d1db23643228.zip FreeBSD-src-7fdf49473c970aa96ee1bae16928d1db23643228.tar.gz |
Virgin import of FSF groff v1.10
Diffstat (limited to 'contrib/groff/troff/dictionary.h')
-rw-r--r-- | contrib/groff/troff/dictionary.h | 92 |
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 index 0000000..4f319be --- /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); +} |