92 lines
2.1 KiB
C
92 lines
2.1 KiB
C
/*
|
|
* Copyright 2008-2013 Various Authors
|
|
* Copyright 2005 Timo Hirvonen
|
|
*
|
|
* This program 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 of the
|
|
* License, or (at your option) any later version.
|
|
*
|
|
* This program 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 this program; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef CMUS_EXPR_H
|
|
#define CMUS_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_ID,
|
|
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 {
|
|
char* key;
|
|
enum {
|
|
KOP_LT = OP_LT,
|
|
KOP_LE = OP_LE,
|
|
KOP_EQ = OP_EQ,
|
|
KOP_GE = OP_GE,
|
|
KOP_GT = OP_GT,
|
|
KOP_NE = OP_NE
|
|
} op;
|
|
} eid;
|
|
};
|
|
};
|
|
|
|
struct expr *expr_parse(const char *str);
|
|
struct expr* expr_parse_i(const char *str, const char *err_msg, int check_short);
|
|
int expr_check_leaves(struct expr **exprp, const char *(*get_filter)(const char *name));
|
|
int expr_op_to_bool(int res, int op);
|
|
int expr_eval(struct expr *expr, struct track_info *ti);
|
|
void expr_free(struct expr *expr);
|
|
const char *expr_error(void);
|
|
int expr_is_short(const char *str);
|
|
|
|
unsigned int expr_get_match_type(struct expr *expr);
|
|
/* "harmless" expressions will reduce filter results when adding characters at the beginning/end */
|
|
int expr_is_harmless(const struct expr *expr);
|
|
|
|
#endif
|