/*
  macros.h - definitions for a simple macro expander
  
  Copyright (c) 2010, 2014 Cisco and/or its affiliates.
  
  * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
*/

#ifndef included_macros_h
#define included_macros_h

#include <vppinfra/vec.h>
#include <vppinfra/hash.h>
#include <vppinfra/format.h>

#ifdef CLIB_UNIX
#include <stdlib.h>
#include <unistd.h>
#endif

typedef struct {
    uword * the_builtin_eval_hash;
    uword * the_value_table_hash;
} macro_main_t;

int clib_macro_unset (macro_main_t * mm, char *name);
int clib_macro_set_value (macro_main_t * mm, char *name, char *value);
void clib_macro_add_builtin (macro_main_t *mm, char *name, void * eval_fn);
i8 * clib_macro_get_value (macro_main_t * mm, char *name);
i8 * clib_macro_eval (macro_main_t *mm, i8 *s, i32 complain);
i8 *clib_macro_eval_dollar (macro_main_t *mm, i8 *s, i32 complain);
void clib_macro_init(macro_main_t * mm);
void clib_macro_free(macro_main_t * mm);

#endif /* included_macros_h */