109 lines
3.6 KiB
C
109 lines
3.6 KiB
C
#ifndef DCFG_H
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#define DCFG_H
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct dcfg_Value dcfg_Value;
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typedef struct dcfg_Instance dcfg_Instance;
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// Type definitions
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typedef struct dcfg_StringView {
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char const *data;
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size_t size;
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} dcfg_StringView;
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typedef void *(*dcfg_AllocFn)(size_t); // This should automatically zero memory.
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typedef void (*dcfg_FreeFn)(void *);
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typedef char *(*dcfg_RealpathFn)(char const *);
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typedef void *(*dcfg_FopenFn)(char const *, char const *);
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typedef int (*dcfg_FseekFn)(void *, size_t, int);
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typedef long (*dcfg_FtellFn)(void *);
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typedef struct dcfg_InstanceCreateInfo {
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// Default using libc
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dcfg_AllocFn alloc;
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dcfg_FreeFn free;
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// If POSIX support is enabled, all of those are defined if NULL.
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dcfg_RealpathFn realpath;
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dcfg_FopenFn fopen;
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dcfg_FseekFn fseek;
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dcfg_FtellFn ftell;
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} dcfg_InstanceCreateInfo;
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typedef enum dcfg_ValueKind {
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dcfg_ValueType_Nil,
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dcfg_ValueType_Boolean,
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dcfg_ValueType_Integer,
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dcfg_ValueType_Real,
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dcfg_ValueType_String,
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dcfg_ValueType_Path,
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dcfg_ValueType_Object,
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dcfg_ValueType_Array,
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dcfg_ValueType_Function,
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dcfg_ValueType_FunctionCall,
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} dcfg_ValueType;
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dcfg_Instance *dcfg_make_instance(dcfg_InstanceCreateInfo const *create_info);
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void dcfg_destroy_instance(dcfg_Instance *instance);
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char const *dcfg_last_error(dcfg_Instance *instance);
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// File path gets copied internally to instance to a Value * -> path hashmap for
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// evaluation.
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dcfg_Value *dcfg_parse(dcfg_Instance *instance,
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dcfg_StringView const file_path);
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void dcfg_destroy(dcfg_Value *value);
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bool dcfg_serialize_value(dcfg_Value *value, dcfg_StringView *out_sv);
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// Value type checking
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dcfg_ValueType dcfg_Value_type_ex(dcfg_Value *value, bool evaluate);
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static inline dcfg_ValueType dcfg_Value_type(dcfg_Value *value) {
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return dcfg_Value_type_ex(value, true);
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}
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// Value getters
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bool dcfg_Value_get_object_field_ex(dcfg_Value *value,
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dcfg_StringView const key,
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dcfg_Value **out_value,
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bool const evaluate);
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bool dcfg_Value_get_array_item_ex(dcfg_Value *value, size_t const index,
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dcfg_Value **out_value, bool const evaluate);
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bool dcfg_Value_get_boolean(dcfg_Value *value, bool *out_value);
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bool dcfg_Value_get_integer(dcfg_Value *value, int64_t *out_value);
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bool dcfg_Value_get_real(dcfg_Value *value, double *out_value);
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bool dcfg_Value_get_string(dcfg_Value *value, dcfg_StringView *out_sv);
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bool dcfg_Value_get_path(dcfg_Value *value, dcfg_StringView *out_sv);
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bool dcfg_Value_get_object_keys(dcfg_Value *value, size_t const capacity,
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size_t *out_count, dcfg_StringView *out_keys);
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bool dcfg_Value_get_array_size(dcfg_Value *value, size_t *out_size);
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static inline bool dcfg_Value_get_object_field(dcfg_Value *value,
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dcfg_StringView const key,
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dcfg_Value **out_value) {
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return dcfg_Value_get_object_field_ex(value, key, out_value, true);
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}
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static inline bool dcfg_Value_get_array_item(dcfg_Value *value,
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size_t const index,
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dcfg_Value **out_value) {
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return dcfg_Value_get_array_item_ex(value, index, out_value, true);
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}
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bool dcfg_call_function(dcfg_Value *function, dcfg_Value **args,
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size_t arg_count, dcfg_Value **out_value);
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bool dcfg_Value_evaluate(dcfg_Value *value, dcfg_Value **out_value);
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#ifdef __cplusplus
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}
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#endif
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#endif // DCFG_H
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