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/* Copyright (c) 2009, 2010, 2011, 2015 Nicira, Inc.
*
* 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 OVSDB_PARSER_H
#define OVSDB_PARSER_H 1
#include <stdbool.h>
#include "compiler.h"
#include "json.h"
#include "sset.h"
#include "util.h"
struct ovsdb_parser {
char *name; /* Used only in error messages. */
struct sset used; /* Already-parsed names from 'object'. */
const struct json *json; /* JSON object being parsed. */
struct ovsdb_error *error; /* Error signaled, if any. */
};
/* Check that the JSON types make the bitwise tricks below work OK. */
BUILD_ASSERT_DECL(JSON_NULL >= 0 && JSON_NULL < 10);
BUILD_ASSERT_DECL(JSON_FALSE >= 0 && JSON_FALSE < 10);
BUILD_ASSERT_DECL(JSON_TRUE >= 0 && JSON_TRUE < 10);
BUILD_ASSERT_DECL(JSON_OBJECT >= 0 && JSON_OBJECT < 10);
BUILD_ASSERT_DECL(JSON_ARRAY >= 0 && JSON_ARRAY < 10);
BUILD_ASSERT_DECL(JSON_INTEGER >= 0 && JSON_INTEGER < 10);
BUILD_ASSERT_DECL(JSON_REAL >= 0 && JSON_REAL < 10);
BUILD_ASSERT_DECL(JSON_STRING >= 0 && JSON_STRING < 10);
BUILD_ASSERT_DECL(JSON_N_TYPES == 8);
enum ovsdb_parser_types {
OP_NULL = 1 << JSON_NULL, /* null */
OP_FALSE = 1 << JSON_FALSE, /* false */
OP_TRUE = 1 << JSON_TRUE, /* true */
OP_OBJECT = 1 << JSON_OBJECT, /* {"a": b, "c": d, ...} */
OP_ARRAY = 1 << JSON_ARRAY, /* [1, 2, 3, ...] */
OP_INTEGER = 1 << JSON_INTEGER, /* 123. */
OP_NONINTEGER = 1 << JSON_REAL, /* 123.456. */
OP_STRING = 1 << JSON_STRING, /* "..." */
OP_ANY = (OP_NULL | OP_FALSE | OP_TRUE | OP_OBJECT | OP_ARRAY
| OP_INTEGER | OP_NONINTEGER | OP_STRING),
OP_BOOLEAN = OP_FALSE | OP_TRUE,
OP_NUMBER = OP_INTEGER | OP_NONINTEGER,
OP_ID = 1 << JSON_N_TYPES, /* "[_a-zA-Z][_a-zA-Z0-9]*" */
OP_OPTIONAL = 1 << (JSON_N_TYPES + 1) /* no value at all */
};
void ovsdb_parser_init(struct ovsdb_parser *, const struct json *,
const char *name, ...)
OVS_PRINTF_FORMAT(3, 4);
const struct json *ovsdb_parser_member(struct ovsdb_parser *, const char *name,
enum ovsdb_parser_types);
void ovsdb_parser_raise_error(struct ovsdb_parser *parser,
const char *format, ...)
OVS_PRINTF_FORMAT(2, 3);
bool ovsdb_parser_has_error(const struct ovsdb_parser *);
struct ovsdb_error *ovsdb_parser_get_error(const struct ovsdb_parser *);
struct ovsdb_error *ovsdb_parser_finish(struct ovsdb_parser *)
OVS_WARN_UNUSED_RESULT;
struct ovsdb_error *ovsdb_parser_destroy(struct ovsdb_parser *)
OVS_WARN_UNUSED_RESULT;
bool ovsdb_parser_is_id(const char *string);
#endif /* ovsdb-parser.h */
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