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/*
* Copyright 2005 Timo Hirvonen
*/
#ifndef EXPR_H
#define EXPR_H
#include <track_info.h>
#include <list.h>
enum { OP_LT, OP_LE, OP_EQ, OP_GE, OP_GT, OP_NE };
#define NR_OPS (OP_NE + 1)
enum expr_type {
EXPR_AND,
EXPR_OR,
EXPR_NOT,
EXPR_STR,
EXPR_INT,
EXPR_BOOL
};
#define NR_EXPRS (EXPR_BOOL + 1)
struct expr {
struct expr *left, *right, *parent;
enum expr_type type;
char *key;
union {
struct {
struct list_head glob_head;
enum {
SOP_EQ = OP_EQ,
SOP_NE = OP_NE
} op;
} estr;
struct {
int val;
enum {
IOP_LT = OP_LT,
IOP_LE = OP_LE,
IOP_EQ = OP_EQ,
IOP_GE = OP_GE,
IOP_GT = OP_GT,
IOP_NE = OP_NE
} op;
} eint;
};
};
struct expr *expr_parse(const char *str);
int expr_check_leaves(struct expr **exprp, const char *(*get_filter)(const char *name));
int expr_eval(struct expr *expr, struct track_info *ti);
void expr_free(struct expr *expr);
const char *expr_error(void);
#endif
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