diff options
Diffstat (limited to 'toml.h')
| -rw-r--r-- | toml.h | 137 |
1 files changed, 137 insertions, 0 deletions
@@ -0,0 +1,137 @@ +#ifndef TOML_H +#define TOML_H +#ifdef _MSC_VER +# pragma warning(disable : 4996) +#endif +#ifdef __cplusplus +# define TOML_EXTERN extern "C" +#else +# define TOML_EXTERN extern +#endif + +#include <stdbool.h> +#include <stdint.h> +#include <stdio.h> + +typedef struct toml_table_t toml_table_t; +typedef struct toml_array_t toml_array_t; +typedef struct toml_value_t toml_value_t; +typedef struct toml_timestamp_t toml_timestamp_t; +typedef struct toml_keyval_t toml_keyval_t; +typedef struct toml_arritem_t toml_arritem_t; +typedef struct toml_pos_t toml_pos_t; + +// TOML table. +struct toml_table_t { + const char* key; // Key for this table + int keylen; // length of key. + bool implicit; // Table was created implicitly + bool readonly; // No more modification allowed + + int nkval; // key-values in the table + toml_keyval_t** kval; + int narr; // arrays in the table + toml_array_t** arr; + int ntbl; // tables in the table + toml_table_t** tbl; +}; + +// TOML array. +struct toml_array_t { + const char* key; // key to this array + int keylen; // length of key. + int kind; // element kind: 'v'alue, 'a'rray, or 't'able, 'm'ixed + int type; // for value kind: 'i'nt, 'd'ouble, 'b'ool, 's'tring, 't'ime, 'D'ate, 'T'imestamp, 'm'ixed + int nitem; // number of elements + toml_arritem_t* item; +}; +struct toml_arritem_t { + int valtype; // for value kind: 'i'nt, 'd'ouble, 'b'ool, 's'tring, 't'ime, 'D'ate, 'T'imestamp + char* val; + toml_array_t* arr; + toml_table_t* tbl; +}; + +// TOML key/value pair. +struct toml_keyval_t { + const char* key; // key to this value + int keylen; // length of key. + const char* val; // the raw value +}; + +// Token position. +struct toml_pos_t { + int line; + int col; +}; + +// Timestamp type; some values may be empty depending on the value of kind. +struct toml_timestamp_t { + // datetime type: + // + // 'd'atetime Full date + time + TZ + // 'l'local-datetime Full date + time but without TZ + // 'D'ate-local Date only, without TZ + // 't'ime-local Time only, without TZ + char kind; + + int year, month, day; + int hour, minute, second, millisec; + int tz; // Timezone offset in minutes +}; + +// Parsed TOML value. +// +// The string value s is a regular NULL-terminated C string, but the string +// length is also given in sl since TOML values may contain NULL bytes. The +// value is guaranteed to be correct UTF-8. +struct toml_value_t { + bool ok; // Was this value present? + union { + struct { + char* s; // string value; must be freed after use. + int sl; // string length, excluding NULL. + }; + toml_timestamp_t ts; // datetime + bool b; // bool + int64_t i; // int + double d; // double + } u; +}; + +// toml_parse() parses a TOML document from a string. Returns 0 on error, with +// the error message stored in errbuf. +// +// toml_parse_file() is identical, but reads from a file descriptor. +// +// Use toml_free() to free the return value; this will invalidate all handles +// for this table. +TOML_EXTERN toml_table_t* toml_parse(char* toml, char* errbuf, int errbufsz); +TOML_EXTERN toml_table_t* toml_parse_file(FILE* fp, char* errbuf, int errbufsz); +TOML_EXTERN void toml_free(toml_table_t* table); + +// Table functions. +// +// toml_table_len() gets the number of direct keys for this table; +// toml_table_key() gets the nth direct key in this table. +TOML_EXTERN int toml_table_len(const toml_table_t* table); +TOML_EXTERN const char* toml_table_key(const toml_table_t* table, int keyidx, int* keylen); +TOML_EXTERN toml_value_t toml_table_string(const toml_table_t* table, const char* key); +TOML_EXTERN toml_value_t toml_table_bool(const toml_table_t* table, const char* key); +TOML_EXTERN toml_value_t toml_table_int(const toml_table_t* table, const char* key); +TOML_EXTERN toml_value_t toml_table_double(const toml_table_t* table, const char* key); +TOML_EXTERN toml_value_t toml_table_timestamp(const toml_table_t* table, const char* key); +TOML_EXTERN toml_array_t* toml_table_array(const toml_table_t* table, const char* key); +TOML_EXTERN toml_table_t* toml_table_table(const toml_table_t* table, const char* key); + +// Array functions. +TOML_EXTERN int toml_array_len(const toml_array_t* array); +TOML_EXTERN toml_value_t toml_array_string(const toml_array_t* array, int idx); +TOML_EXTERN toml_value_t toml_array_bool(const toml_array_t* array, int idx); +TOML_EXTERN toml_value_t toml_array_int(const toml_array_t* array, int idx); +TOML_EXTERN toml_value_t toml_array_double(const toml_array_t* array, int idx); +TOML_EXTERN toml_value_t toml_array_timestamp(const toml_array_t* array, int idx); +TOML_EXTERN toml_array_t* toml_array_array(const toml_array_t* array, int idx); +TOML_EXTERN toml_table_t* toml_array_table(const toml_array_t* array, int idx); + +#endif // TOML_H |