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/**
* @file parser_schema.h
* @author Radek Krejci <rkrejci@cesnet.cz>
* @brief Schema parsers for libyang
*
* Copyright (c) 2015-2020 CESNET, z.s.p.o.
*
* This source code is licensed under BSD 3-Clause License (the "License").
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://opensource.org/licenses/BSD-3-Clause
*/
#ifndef LY_PARSER_SCHEMA_H_
#define LY_PARSER_SCHEMA_H_
#ifdef __cplusplus
extern "C" {
#endif
struct ly_in;
struct lys_module;
/**
* @addtogroup schematree
* @{
*/
/**
* @brief Schema input formats accepted by libyang [parser functions](@ref howtoschemasparsers).
*/
typedef enum {
LYS_IN_UNKNOWN = 0, /**< unknown format, used as return value in case of error */
LYS_IN_YANG = 1, /**< YANG schema input format */
LYS_IN_YIN = 3 /**< YIN schema input format */
} LYS_INFORMAT;
/**
* @brief Load a schema into the specified context.
*
* @param[in] ctx libyang context where to process the data model.
* @param[in] in The input handle to provide the dumped data model in the specified format.
* @param[in] format Format of the schema to parse.
* @param[out] module Optional parsed module.
* @return LY_ERR value.
*/
LY_ERR lys_parse(struct ly_ctx *ctx, struct ly_in *in, LYS_INFORMAT format, const struct lys_module **module);
/**
* @brief Load a schema into the specified context.
*
* This function is comsidered for a simple use, if you have a complex usecase,
* consider use of lys_parse() with a standalone input handler.
*
* @param[in] ctx libyang context where to process the data model.
* @param[in] data The string containing the dumped data model in the specified format.
* @param[in] format Format of the input data (YANG or YIN).
* @param[out] module Optional parsed module.
* @return LY_ERR value.
*/
LY_ERR lys_parse_mem(struct ly_ctx *ctx, const char *data, LYS_INFORMAT format, const struct lys_module **module);
/**
* @brief Read a schema from file descriptor into the specified context.
*
* \note Current implementation supports only reading data from standard (disk) file, not from sockets, pipes, etc.
*
* This function is comsidered for a simple use, if you have a complex usecase,
* consider use of lys_parse() with a standalone input handler.
*
* @param[in] ctx libyang context where to process the data model.
* @param[in] fd File descriptor of a regular file (e.g. sockets are not supported) containing the schema
* in the specified format.
* @param[in] format Format of the input data (YANG or YIN).
* @param[out] module Optional parsed module.
* @return LY_ERR value.
*/
LY_ERR lys_parse_fd(struct ly_ctx *ctx, int fd, LYS_INFORMAT format, const struct lys_module **module);
/**
* @brief Load a schema into the specified context from a file.
*
* This function is comsidered for a simple use, if you have a complex usecase,
* consider use of lys_parse() with a standalone input handler.
*
* @param[in] ctx libyang context where to process the data model.
* @param[in] path Path to the file with the model in the specified format.
* @param[in] format Format of the input data (YANG or YIN).
* @param[out] module Optional parsed module.
* @return LY_ERR value.
*/
LY_ERR lys_parse_path(struct ly_ctx *ctx, const char *path, LYS_INFORMAT format, const struct lys_module **module);
/**
* @brief Search for the schema file in the specified searchpaths.
*
* @param[in] searchpaths NULL-terminated array of paths to be searched (recursively). Current working
* directory is searched automatically (but non-recursively if not in the provided list). Caller can use
* result of the ly_ctx_get_searchdirs().
* @param[in] cwd Flag to implicitly search also in the current working directory (non-recursively).
* @param[in] name Name of the schema to find.
* @param[in] revision Revision of the schema to find. If NULL, the newest found schema filepath is returned.
* @param[out] localfile Mandatory output variable containing absolute path of the found schema. If no schema
* complying the provided restriction is found, NULL is set.
* @param[out] format Optional output variable containing expected format of the schema document according to the
* file suffix.
* @return LY_ERR value (LY_SUCCESS is returned even if the file is not found, then the *localfile is NULL).
*/
LY_ERR lys_search_localfile(const char * const *searchpaths, int cwd, const char *name, const char *revision,
char **localfile, LYS_INFORMAT *format);
/** @} schematree */
#ifdef __cplusplus
}
#endif
#endif /* LY_PARSER_SCHEMA_H_ */