| /* macro.h - header file for macro support for gas and gasp |
| Copyright (C) 1994, 95, 96, 97, 1998 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 attatched 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 |
| PARAMS ((const char *, const char *, sb *, int (*) PARAMS ((sb *)))); |
| extern void macro_init |
| PARAMS ((int alternate, int mri, int strip_at, |
| int (*) PARAMS ((const char *, int, sb *, int *)))); |
| extern void macro_mri_mode PARAMS ((int)); |
| extern const char *define_macro |
| PARAMS ((int idx, sb *in, sb *label, int (*get_line) PARAMS ((sb *)), |
| const char **namep)); |
| extern int check_macro PARAMS ((const char *, sb *, int, const char **, |
| macro_entry **)); |
| extern void delete_macro PARAMS ((const char *)); |
| extern const char *expand_irp |
| PARAMS ((int, int, sb *, sb *, int (*) PARAMS ((sb *)), int)); |
| |
| #endif |