blob: dbd308227d48d484ff0ef68de954ca7fbb0613fb [file] [log] [blame]
/**
* @file printer_schema.h
* @author Radek Krejci <rkrejci@cesnet.cz>
* @brief Schema printers for libyang
*
* Copyright (c) 2015-2019 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_PRINTER_SCHEMA_H_
#define LY_PRINTER_SCHEMA_H_
#include <stdio.h>
#include <unistd.h>
#include "log.h"
#ifdef __cplusplus
extern "C" {
#endif
struct ly_out;
struct lys_module;
struct lysc_node;
struct lysp_submodule;
/**
* @addtogroup schematree
* @{
*/
/**
* @defgroup schemaprinterflags Schema output options
* @{
*/
/* Keep the value 0x02 reserver for implicit LYS_PRINT_FORMAT */
#define LYS_OUTPUT_NO_SUBSTMT 0x10 /**< Print only top-level/referede node information,
do not print information from the substatements */
//#define LYS_OUTOPT_TREE_RFC 0x01 /**< Conform to the RFC TODO tree output (only for tree format) */
//#define LYS_OUTOPT_TREE_GROUPING 0x02 /**< Print groupings separately (only for tree format) */
//#define LYS_OUTOPT_TREE_USES 0x04 /**< Print only uses instead the resolved grouping nodes (only for tree format) */
//#define LYS_OUTOPT_TREE_NO_LEAFREF 0x08 /**< Do not print the target of leafrefs (only for tree format) */
/** @} schemaprinterflags */
/**
* @brief Schema output formats accepted by libyang [printer functions](@ref howtoschemasprinters).
*/
typedef enum {
LYS_OUT_UNKNOWN = 0, /**< unknown format, used as return value in case of error */
LYS_OUT_YANG = 1, /**< YANG schema output format */
LYS_OUT_YANG_COMPILED = 2, /**< YANG schema output format of the compiled schema tree */
LYS_OUT_YIN = 3, /**< YIN schema output format */
LYS_OUT_TREE, /**< Tree schema output format, for more information see the [printers](@ref howtoschemasprinters) page */
} LYS_OUTFORMAT;
/**
* @brief Schema module printer.
*
* @param[in] out Printer handler for a specific output. Use ly_out_*() functions to create and free the handler.
* @param[in] module Main module with the parsed schema to print.
* @param[in] format Output format.
* @param[in] line_length Maximum characters to be printed on a line, 0 for unlimited. Only for #LYS_OUT_TREE printer.
* @param[in] options Schema output options (see @ref schemaprinterflags).
* @return LY_ERR value.
*/
LY_ERR lys_print_module(struct ly_out *out, const struct lys_module *module, LYS_OUTFORMAT format, int line_length, int options);
/**
* @brief Schema submodule printer.
*
* @param[in] out Printer handler for a specific output. Use ly_out_*() functions to create and free the handler.
* @param[in] module Main module of the submodule to print.
* @param[in] submodule Parsed submodule to print.
* @param[in] format Output format.
* @param[in] line_length Maximum characters to be printed on a line, 0 for unlimited. Only for #LYS_OUT_TREE printer.
* @param[in] options Schema output options (see @ref schemaprinterflags).
* @return LY_ERR value.
*/
LY_ERR lys_print_submodule(struct ly_out *out, const struct lys_module *module, const struct lysp_submodule *submodule,
LYS_OUTFORMAT format, int line_length, int options);
/**
* @brief Print schema tree in the specified format into a memory block.
* It is up to caller to free the returned string by free().
*
* This is just a wrapper around lys_print() for simple use cases.
* In case of a complex use cases, use lys_print with ly_out output handler.
*
* @param[out] strp Pointer to store the resulting dump.
* @param[in] module Schema tree to print.
* @param[in] format Schema output format.
* @param[in] options Schema output options (see @ref schemaprinterflags).
* @return LY_ERR value.
*/
LY_ERR lys_print_mem(char **strp, const struct lys_module *module, LYS_OUTFORMAT format, int options);
/**
* @brief Print schema tree in the specified format into a file descriptor.
*
* This is just a wrapper around lys_print() for simple use cases.
* In case of a complex use cases, use lys_print with ly_out output handler.
*
* @param[in] fd File descriptor where to print the data.
* @param[in] module Schema tree to print.
* @param[in] format Schema output format.
* @param[in] options Schema output options (see @ref schemaprinterflags).
* @return LY_ERR value.
*/
LY_ERR lys_print_fd(int fd, const struct lys_module *module, LYS_OUTFORMAT format, int options);
/**
* @brief Print schema tree in the specified format into a file stream.
*
* This is just a wrapper around lys_print() for simple use cases.
* In case of a complex use cases, use lys_print with ly_out output handler.
*
* @param[in] module Schema tree to print.
* @param[in] f File stream where to print the schema.
* @param[in] format Schema output format.
* @param[in] options Schema output options (see @ref schemaprinterflags).
* @return LY_ERR value.
*/
LY_ERR lys_print_file(FILE *f, const struct lys_module *module, LYS_OUTFORMAT format, int options);
/**
* @brief Print schema tree in the specified format into a file.
*
* This is just a wrapper around lys_print() for simple use cases.
* In case of a complex use cases, use lys_print with ly_out output handler.
*
* @param[in] path File where to print the schema.
* @param[in] module Schema tree to print.
* @param[in] format Schema output format.
* @param[in] options Schema output options (see @ref schemaprinterflags).
* @return LY_ERR value.
*/
LY_ERR lys_print_path(const char *path, const struct lys_module *module, LYS_OUTFORMAT format, int options);
/**
* @brief Print schema tree in the specified format using a provided callback.
*
* This is just a wrapper around lys_print() for simple use cases.
* In case of a complex use cases, use lys_print with ly_out output handler.
*
* @param[in] module Schema tree to print.
* @param[in] writeclb Callback function to write the data (see write(1)).
* @param[in] arg Optional caller-specific argument to be passed to the \p writeclb callback.
* @param[in] format Schema output format.
* @param[in] options Schema output options (see @ref schemaprinterflags).
* @return LY_ERR value.
*/
LY_ERR lys_print_clb(ssize_t (*writeclb)(void *arg, const void *buf, size_t count), void *arg,
const struct lys_module *module, LYS_OUTFORMAT format, int options);
/**
* @brief Schema node printer.
*
* @param[in] out Printer handler for a specific output. Use ly_out_*() functions to create and free the handler.
* @param[in] node Schema node to print, lys_find_node() can be used to get it from a path string.
* @param[in] format Output format.
* @param[in] line_length Maximum characters to be printed on a line, 0 for unlimited. Only for #LYS_OUT_TREE printer.
* @param[in] options Schema output options (see @ref schemaprinterflags).
* @return LY_ERR value.
*/
LY_ERR lys_print_node(struct ly_out *out, const struct lysc_node *node, LYS_OUTFORMAT format, int line_length, int options);
/** @} schematree */
#ifdef __cplusplus
}
#endif
#endif /* LY_PRINTER_SCHEMA_H_ */