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/*
* Copyright (C) 2013-2014 Jo-Philipp Wich <jo@mein.io>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, 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.
*/
#ifndef __AST_H_
#define __AST_H_
#include <stddef.h>
struct jp_opcode {
int type;
struct jp_opcode *next;
struct jp_opcode *down;
struct jp_opcode *sibling;
char *str;
int num;
};
struct jp_state {
struct jp_opcode *pool;
struct jp_opcode *path;
int error_pos;
int error_code;
int off;
};
static inline struct jp_opcode *
append_op(struct jp_opcode *a, struct jp_opcode *b)
{
struct jp_opcode *tail = a;
while (tail->sibling)
tail = tail->sibling;
tail->sibling = b;
return a;
}
struct jp_opcode *jp_alloc_op(struct jp_state *s, int type, int num, char *str, ...);
struct jp_state *jp_parse(const char *expr);
void jp_free(struct jp_state *s);
void *ParseAlloc(void *(*mfunc)(size_t));
void Parse(void *pParser, int type, struct jp_opcode *op, struct jp_state *s);
void ParseFree(void *pParser, void (*ffunc)(void *));
#endif /* __AST_H_ */
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