options/registry/common.h

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#pragma once
 
#include <ascii-chat/options/builder.h>
#include <ascii-chat/options/options.h>
#include <stdbool.h>
#include <stddef.h>
 
typedef const void *(*mode_default_getter_fn)(asciichat_mode_t mode);
 
typedef struct {
  const char *long_name;
  char short_name;
  option_type_t type;
  size_t offset;
  const void *default_value; 
  size_t default_value_size;
  const char *help_text;
  const char *group;
  const char *arg_placeholder; 
  bool required;
  const char *env_var_name;
  bool (*validate_fn)(const void *options_struct, char **error_msg);
  bool (*parse_fn)(const char *arg, void *dest, char **error_msg);
  bool owns_memory;
  bool optional_arg;
  option_mode_bitmask_t mode_bitmask;
  option_metadata_t metadata; 
  mode_default_getter_fn
      mode_default_getter; 
} registry_entry_t;
 
typedef struct {
  const registry_entry_t *entries;
  const char *name;
} category_builder_t;
 
#define REGISTRY_TERMINATOR()                                                                                          \
  {.long_name = NULL,                                                                                                  \
   .short_name = '\0',                                                                                                 \
   .type = OPTION_TYPE_BOOL,                                                                                           \
   .offset = 0,                                                                                                        \
   .default_value = NULL,                                                                                              \
   .mode_default_getter = NULL,                                                                                        \
   .default_value_size = 0,                                                                                            \
   .help_text = NULL,                                                                                                  \
   .group = NULL,                                                                                                      \
   .arg_placeholder = NULL,                                                                                            \
   .required = false,                                                                                                  \
   .env_var_name = NULL,                                                                                               \
   .validate_fn = NULL,                                                                                                \
   .parse_fn = NULL,                                                                                                   \
   .owns_memory = false,                                                                                               \
   .optional_arg = false,                                                                                              \
   .mode_bitmask = OPTION_MODE_NONE,                                                                                   \
   .metadata = {0}}