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Unified Diff: bison/src/bison/2.4.1/bison-2.4.1-src/src/closure.h

Issue 10807020: Add native Windows binary for bison. (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/
Patch Set: Created 8 years, 5 months ago
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Index: bison/src/bison/2.4.1/bison-2.4.1-src/src/closure.h
===================================================================
--- bison/src/bison/2.4.1/bison-2.4.1-src/src/closure.h (revision 0)
+++ bison/src/bison/2.4.1/bison-2.4.1-src/src/closure.h (revision 0)
@@ -0,0 +1,57 @@
+/* Subroutines for bison
+
+ Copyright (C) 1984, 1989, 2000, 2001, 2002, 2007 Free Software
+ Foundation, Inc.
+
+ This file is part of Bison, the GNU Compiler Compiler.
+
+ This program 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 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef CLOSURE_H_
+# define CLOSURE_H_
+
+# include "gram.h"
+
+/* Allocates the itemset and ruleset vectors, and precomputes useful
+ data so that closure can be called. n is the number of elements to
+ allocate for itemset. */
+
+void new_closure (unsigned int n);
+
+
+/* Given the kernel (aka core) of a state (a sorted vector of item numbers
+ ITEMS, of length N), set up RULESET and ITEMSET to indicate what
+ rules could be run and which items could be accepted when those
+ items are the active ones.
+
+ RULESET contains a bit for each rule. CLOSURE sets the bits for
+ all rules which could potentially describe the next input to be
+ read.
+
+ ITEMSET is a sorted vector of item numbers; NITEMSET is its size
+ (actually, points to just beyond the end of the part of it that is
+ significant). CLOSURE places there the indices of all items which
+ represent units of input that could arrive next. */
+
+void closure (item_number *items, size_t n);
+
+
+/* Frees ITEMSET, RULESET and internal data. */
+
+void free_closure (void);
+
+extern item_number *itemset;
+extern size_t nitemset;
+
+#endif /* !CLOSURE_H_ */
Property changes on: bison\src\bison\2.4.1\bison-2.4.1-src\src\closure.h
___________________________________________________________________
Added: svn:eol-style
+ LF
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