From 9a0859212de4d1304f9392fe910921227421c8c3 Mon Sep 17 00:00:00 2001 From: Patrick Simianer Date: Sat, 16 Aug 2014 21:25:52 +0100 Subject: cleanup --- lib/cdec_json_parser/JSON_parser.h | 152 +++++++++++++++++++++++++++++++++++++ 1 file changed, 152 insertions(+) create mode 100644 lib/cdec_json_parser/JSON_parser.h (limited to 'lib/cdec_json_parser/JSON_parser.h') diff --git a/lib/cdec_json_parser/JSON_parser.h b/lib/cdec_json_parser/JSON_parser.h new file mode 100644 index 0000000..de98007 --- /dev/null +++ b/lib/cdec_json_parser/JSON_parser.h @@ -0,0 +1,152 @@ +#ifndef JSON_PARSER_H +#define JSON_PARSER_H + +/* JSON_parser.h */ + + +#include + +/* Windows DLL stuff */ +#ifdef _WIN32 +# ifdef JSON_PARSER_DLL_EXPORTS +# define JSON_PARSER_DLL_API __declspec(dllexport) +# else +# define JSON_PARSER_DLL_API __declspec(dllimport) +# endif +#else +# define JSON_PARSER_DLL_API +#endif + +/* Determine the integer type use to parse non-floating point numbers */ +#if __STDC_VERSION__ >= 199901L || HAVE_LONG_LONG == 1 +typedef long long JSON_int_t; +#define JSON_PARSER_INTEGER_SSCANF_TOKEN "%lld" +#define JSON_PARSER_INTEGER_SPRINTF_TOKEN "%lld" +#else +typedef long JSON_int_t; +#define JSON_PARSER_INTEGER_SSCANF_TOKEN "%ld" +#define JSON_PARSER_INTEGER_SPRINTF_TOKEN "%ld" +#endif + + +#ifdef __cplusplus +extern "C" { +#endif + +typedef enum +{ + JSON_T_NONE = 0, + JSON_T_ARRAY_BEGIN, // 1 + JSON_T_ARRAY_END, // 2 + JSON_T_OBJECT_BEGIN, // 3 + JSON_T_OBJECT_END, // 4 + JSON_T_INTEGER, // 5 + JSON_T_FLOAT, // 6 + JSON_T_NULL, // 7 + JSON_T_TRUE, // 8 + JSON_T_FALSE, // 9 + JSON_T_STRING, // 10 + JSON_T_KEY, // 11 + JSON_T_MAX // 12 +} JSON_type; + +typedef struct JSON_value_struct { + union { + JSON_int_t integer_value; + + double float_value; + + struct { + const char* value; + size_t length; + } str; + } vu; +} JSON_value; + +typedef struct JSON_parser_struct* JSON_parser; + +/*! \brief JSON parser callback + + \param ctx The pointer passed to new_JSON_parser. + \param type An element of JSON_type but not JSON_T_NONE. + \param value A representation of the parsed value. This parameter is NULL for + JSON_T_ARRAY_BEGIN, JSON_T_ARRAY_END, JSON_T_OBJECT_BEGIN, JSON_T_OBJECT_END, + JSON_T_NULL, JSON_T_TRUE, and SON_T_FALSE. String values are always returned + as zero-terminated C strings. + + \return Non-zero if parsing should continue, else zero. +*/ +typedef int (*JSON_parser_callback)(void* ctx, int type, const struct JSON_value_struct* value); + + +/*! \brief The structure used to configure a JSON parser object + + \param depth If negative, the parser can parse arbitrary levels of JSON, otherwise + the depth is the limit + \param Pointer to a callback. This parameter may be NULL. In this case the input is merely checked for validity. + \param Callback context. This parameter may be NULL. + \param depth. Specifies the levels of nested JSON to allow. Negative numbers yield unlimited nesting. + \param allowComments. To allow C style comments in JSON, set to non-zero. + \param handleFloatsManually. To decode floating point numbers manually set this parameter to non-zero. + + \return The parser object. +*/ +typedef struct { + JSON_parser_callback callback; + void* callback_ctx; + int depth; + int allow_comments; + int handle_floats_manually; +} JSON_config; + + +/*! \brief Initializes the JSON parser configuration structure to default values. + + The default configuration is + - 127 levels of nested JSON (depends on JSON_PARSER_STACK_SIZE, see json_parser.c) + - no parsing, just checking for JSON syntax + - no comments + + \param config. Used to configure the parser. +*/ +JSON_PARSER_DLL_API void init_JSON_config(JSON_config* config); + +/*! \brief Create a JSON parser object + + \param config. Used to configure the parser. Set to NULL to use the default configuration. + See init_JSON_config + + \return The parser object. +*/ +JSON_PARSER_DLL_API extern JSON_parser new_JSON_parser(JSON_config* config); + +/*! \brief Destroy a previously created JSON parser object. */ +JSON_PARSER_DLL_API extern void delete_JSON_parser(JSON_parser jc); + +/*! \brief Parse a character. + + \return Non-zero, if all characters passed to this function are part of are valid JSON. +*/ +JSON_PARSER_DLL_API extern int JSON_parser_char(JSON_parser jc, int next_char); + +/*! \brief Finalize parsing. + + Call this method once after all input characters have been consumed. + + \return Non-zero, if all parsed characters are valid JSON, zero otherwise. +*/ +JSON_PARSER_DLL_API extern int JSON_parser_done(JSON_parser jc); + +/*! \brief Determine if a given string is valid JSON white space + + \return Non-zero if the string is valid, zero otherwise. +*/ +JSON_PARSER_DLL_API extern int JSON_parser_is_legal_white_space_string(const char* s); + + +#ifdef __cplusplus +} +#endif + + +#endif /* JSON_PARSER_H */ -- cgit v1.2.3