text: // Copyright 2018 Apex.AI, 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 IMPL__PARSE_H_
  #define IMPL__PARSE_H_
  
  #include <yaml.h>
  
  #include "rcutils/types.h"
  
  #include "./types.h"
  #include "rcl_yaml_param_parser/types.h"
  #include "rcl_yaml_param_parser/visibility_control.h"
  
  #ifdef __cplusplus
  extern "C"
  {
  #endif
  
  RCL_YAML_PARAM_PARSER_PUBLIC
  RCUTILS_WARN_UNUSED
  void * get_value(
    const char * const value,
    yaml_scalar_style_t style,
    data_types_t * val_type,
    const rcutils_allocator_t allocator);
  
  RCL_YAML_PARAM_PARSER_PUBLIC
  RCUTILS_WARN_UNUSED
  rcutils_ret_t parse_value(
    const yaml_event_t event,
    const bool is_seq,
    const size_t node_idx,
    const size_t parameter_idx,
    data_types_t * seq_data_type,
    rcl_params_t * params_st);
  
  RCL_YAML_PARAM_PARSER_PUBLIC
  RCUTILS_WARN_UNUSED
  rcutils_ret_t parse_key(
    const yaml_event_t event,
    uint32_t * map_level,
    bool * is_new_map,
    size_t * node_idx,
    size_t * parameter_idx,
    namespace_tracker_t * ns_tracker,
    rcl_params_t * params_st);
  
  RCL_YAML_PARAM_PARSER_PUBLIC
  RCUTILS_WARN_UNUSED
  rcutils_ret_t parse_file_events(
    yaml_parser_t * parser,
    namespace_tracker_t * ns_tracker,
    rcl_params_t * params_st);
  
  RCL_YAML_PARAM_PARSER_PUBLIC
  RCUTILS_WARN_UNUSED
  rcutils_ret_t parse_value_events(
    yaml_parser_t * parser,
    const size_t node_idx,
    const size_t parameter_idx,
    rcl_params_t * params_st);
  
  RCL_YAML_PARAM_PARSER_PUBLIC
  RCUTILS_WARN_UNUSED
  rcutils_ret_t find_node(
    const char * node_name,
    rcl_params_t * param_st,
    size_t * node_idx);
  
  RCL_YAML_PARAM_PARSER_PUBLIC
  RCUTILS_WARN_UNUSED
  rcutils_ret_t find_parameter(
    const size_t node_idx,
    const char * parameter_name,
    rcl_params_t * param_st,
    size_t * parameter_idx);
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif  // IMPL__PARSE_H_
  