1 files changed, 75 insertions, 0 deletions
diff --git a/soltools/mkdepend/ifparser.h b/soltools/mkdepend/ifparser.h
new file mode 100644
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * $XConsortium: ifparser.h,v 1.1 92/08/22 13:05:39 rws Exp $
+ *
+ * Copyright 1992 Network Computing Devices, Inc.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Network Computing Devices may not be
+ * used in advertising or publicity pertaining to distribution of the software
+ * without specific, written prior permission.  Network Computing Devices makes
+ * no representations about the suitability of this software for any purpose.
+ * It is provided ``as is'' without express or implied warranty.
+ *
+ * NETWORK COMPUTING DEVICES DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
+ * IN NO EVENT SHALL NETWORK COMPUTING DEVICES BE LIABLE FOR ANY SPECIAL,
+ * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Author:  Jim Fulton
+ *          Network Computing Devices, Inc.
+ *
+ * Simple if statement processor
+ *
+ * This module can be used to evaluate string representations of C language
+ * if constructs.  It accepts the following grammar:
+ *
+ *     EXPRESSION   :=  VALUE
+ *           |  VALUE  BINOP    EXPRESSION
+ *
+ *     VALUE        :=  '('  EXPRESSION  ')'
+ *           |  '!'  VALUE
+ *           |  '-'  VALUE
+ *           |  'defined'  '('  variable  ')'
+ *           |  variable
+ *           |  number
+ *
+ *     BINOP        :=  '*' |  '/'  |  '%'
+ *           |  '+' |  '-'
+ *           |  '<<'    |  '>>'
+ *           |  '<' |  '>'  |  '<='  |  '>='
+ *           |  '=='    |  '!='
+ *           |  '&' |  '|'
+ *           |  '&&'    |  '||'
+ *
+ * The normal C order of precedence is supported.
+ *
+ *
+ * External Entry Points:
+ *
+ *     ParseIfExpression        parse a string for #if
+ */
+
+#include <stdio.h>
+
+typedef int Bool;
+#define False 0
+#define True 1
+
+typedef struct if_parser {
+    struct {                /* functions */
+      const char *(*handle_error)  (struct if_parser *, const char *, const char *);
+      int         (*eval_variable) (struct if_parser *, const char *, size_t);
+      int         (*eval_defined)  (struct if_parser *, const char *, size_t);
+    } funcs;
+} IfParser;
+
+const char *ParseIfExpression (IfParser *, const char *, int *);
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */