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/*
* Copyright (C) 2007-2018 S[&]T, The Netherlands.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef CODA_FILEFILTER_H
#define CODA_FILEFILTER_H
#include "coda-internal.h"
/* filefilter expression tree declarations */
typedef enum
{
ff_boolean_constant,
ff_double_constant,
ff_string_constant,
ff_operator,
ff_function
} ff_expr_types;
typedef enum
{
ff_error_type,
ff_void_type,
ff_boolean_type,
ff_double_type,
ff_string_type
} ff_basic_types;
typedef struct
{
int operator_id;
int num_operands;
struct ff_expr_struct *operand[1]; /* expandable */
} ff_expr_operator;
typedef struct
{
char *name;
int num_arguments;
struct ff_expr_struct *argument[1]; /* expandable */
} ff_expr_function;
typedef struct ff_expr_struct
{
ff_expr_types type;
/* union must be last entry in ff_expr because of possible expandable expr types */
union
{
int boolean_constant;
double double_constant;
const char *string_constant;
ff_expr_operator oper;
ff_expr_function function;
} value;
} ff_expr;
typedef struct ff_result_struct
{
ff_basic_types type;
union
{
int boolean_value;
double double_value;
const char *string_value;
} value;
} ff_result;
/* expression evaluation declarations */
ff_result coda_filefilter_eval_expr(coda_cursor *cursor, ff_expr *expr);
/* parser declarations */
int coda_filefilter_parse(void);
int coda_filefilter_error(char *error);
extern THREAD_LOCAL ff_expr *coda_filefilter_tree;
#endif
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