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/*
* Copyright (c) 2013 Andrew Kelley
*
* This file is part of liblaxjson, which is MIT licensed.
* See http://opensource.org/licenses/MIT
*/
#ifndef LAXJSON_H_INCLUDED
#define LAXJSON_H_INCLUDED
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
enum LaxJsonType {
LaxJsonTypeString,
LaxJsonTypeProperty,
LaxJsonTypeNumber,
LaxJsonTypeObject,
LaxJsonTypeArray,
LaxJsonTypeTrue,
LaxJsonTypeFalse,
LaxJsonTypeNull
};
enum LaxJsonState {
LaxJsonStateValue,
LaxJsonStateObject,
LaxJsonStateArray,
LaxJsonStateString,
LaxJsonStateStringEscape,
LaxJsonStateUnicodeEscape,
LaxJsonStateBareProp,
LaxJsonStateCommentBegin,
LaxJsonStateCommentLine,
LaxJsonStateCommentMultiLine,
LaxJsonStateCommentMultiLineStar,
LaxJsonStateExpect,
LaxJsonStateEnd,
LaxJsonStateColon,
LaxJsonStateNumber,
LaxJsonStateNumberDecimal,
LaxJsonStateNumberExponent,
LaxJsonStateNumberExponentSign
};
enum LaxJsonError {
LaxJsonErrorNone,
LaxJsonErrorUnexpectedChar,
LaxJsonErrorExpectedEof,
LaxJsonErrorExceededMaxStack,
LaxJsonErrorNoMem,
LaxJsonErrorExceededMaxValueSize,
LaxJsonErrorInvalidHexDigit,
LaxJsonErrorInvalidUnicodePoint,
LaxJsonErrorExpectedColon,
LaxJsonErrorUnexpectedEof,
LaxJsonErrorAborted
};
/* All callbacks must be provided. Return nonzero to abort the ongoing feed operation. */
struct LaxJsonContext {
void *userdata;
/* type can be property or string */
int (*string)(struct LaxJsonContext *, enum LaxJsonType type, const char *value, int length);
/* type is always number */
int (*number)(struct LaxJsonContext *, double x);
/* type can be true, false, or null */
int (*primitive)(struct LaxJsonContext *, enum LaxJsonType type);
/* type can be array or object */
int (*begin)(struct LaxJsonContext *, enum LaxJsonType type);
/* type can be array or object */
int (*end)(struct LaxJsonContext *, enum LaxJsonType type);
int line;
int column;
int max_state_stack_size;
int max_value_buffer_size;
/* private members */
enum LaxJsonState state;
enum LaxJsonState *state_stack;
int state_stack_index;
int state_stack_size;
char *value_buffer;
int value_buffer_index;
int value_buffer_size;
unsigned int unicode_point;
unsigned int unicode_digit_index;
char *expected;
char delim;
enum LaxJsonType string_type;
};
struct LaxJsonContext *lax_json_create(void);
void lax_json_destroy(struct LaxJsonContext *context);
enum LaxJsonError lax_json_feed(struct LaxJsonContext *context, int size, const char *data);
enum LaxJsonError lax_json_eof(struct LaxJsonContext *context);
const char *lax_json_str_err(enum LaxJsonError err);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* LAXJSON_H_INCLUDED */
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