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+/* macro.h - header file for macro support for gas
+   Copyright 1994, 1995, 1996, 1997, 1998, 2000, 2002
+   Free Software Foundation, Inc.
+
+   Written by Steve and Judy Chamberlain of Cygnus Support,
+      sac@cygnus.com
+
+   This file is part of GAS, the GNU Assembler.
+
+   GAS 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.
+
+   GAS 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 GAS; see the file COPYING.  If not, write to the Free
+   Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+   02111-1307, USA.  */
+
+#ifndef MACRO_H
+
+#define MACRO_H
+
+#include "ansidecl.h"
+#include "sb.h"
+
+/* Structures used to store macros.
+
+   Each macro knows its name and included text.  It gets built with a
+   list of formal arguments, and also keeps a hash table which points
+   into the list to speed up formal search.  Each formal knows its
+   name and its default value.  Each time the macro is expanded, the
+   formals get the actual values attached to them.  */
+
+/* Describe the formal arguments to a macro.  */
+
+typedef struct formal_struct {
+  struct formal_struct *next;	/* Next formal in list.  */
+  sb name;			/* Name of the formal.  */
+  sb def;			/* The default value.  */
+  sb actual;			/* The actual argument (changed on each expansion).  */
+  int index;			/* The index of the formal 0..formal_count - 1.  */
+} formal_entry;
+
+/* Other values found in the index field of a formal_entry.  */
+#define QUAL_INDEX (-1)
+#define NARG_INDEX (-2)
+#define LOCAL_INDEX (-3)
+
+/* Describe the macro.  */
+
+typedef struct macro_struct
+{
+  sb sub;				/* Substitution text.  */
+  int formal_count;			/* Number of formal args.  */
+  formal_entry *formals;		/* Pointer to list of formal_structs.  */
+  struct hash_control *formal_hash;	/* Hash table of formals.  */
+} macro_entry;
+
+/* Whether any macros have been defined.  */
+
+extern int macro_defined;
+
+/* The macro nesting level.  */
+
+extern int macro_nest;
+
+extern int buffer_and_nest (const char *, const char *, sb *, int (*) (sb *));
+extern void macro_init
+  (int, int, int, int (*) (const char *, int, sb *, int *));
+extern void macro_mri_mode (int);
+extern const char *define_macro
+  (int, sb *, sb *, int (*) (sb *), const char **);
+extern int check_macro (const char *, sb *, const char **, macro_entry **);
+extern void delete_macro (const char *);
+extern const char *expand_irp (int, int, sb *, sb *, int (*) (sb *));
+
+#endif