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libpsyc/include/psyc/parser.h
2011-04-18 13:27:48 +02:00

94 lines
1.8 KiB
C

#include <stdint.h>
#include <string.h>
enum PSYC_Flags
{
PSYC_HEADER_ONLY = 1
};
enum PSYC_ReturnCodes
{
PSYC_ERROR_EXPECTED_TAB = -8,
PSYC_BODY = 1,
PSYC_BODY_INCOMPLETE,
PSYC_INSUFFICIENT,
PSYC_ROUTING,
PSYC_ENTITY,
PSYC_ENTITY_INCOMPLETE,
PSYC_HEADER_COMPLETE,
PSYC_COMPLETE,
};
typedef struct
{
unsigned int length;
const uint8_t * ptr;
} PSYC_Array;
typedef struct
{
unsigned int cursor; // current position in buffer
PSYC_Array buffer;
uint8_t flags;
unsigned int contentParsed; //
char inContent;
unsigned int valueRemaining;
unsigned int contentLength;
} PSYC_State;
#ifndef PSYC_COMPILE_LIBRARY
/* @brief shortcut for creating an array
*
* @param memory pointer to the buffer
* @param length length of that buffer
*
* @returns an instance of the PSYC_Array struct */
inline PSYC_Array PSYC_createArray (uint8_t* const memory, unsigned int length)
{
PSYC_Array arr = {length, memory};
return arr;
}
/* @brief initiates the state struct with flags
*
* @param state pointer to the state struct that should be initiated
* @param flags the flags that one ones to set, see PSYC_Flags */
inline void PSYC_initState2 (PSYC_State* state, uint8_t flags )
{
memset(state, 0, sizeof(PSYC_State));
state->flags = flags;
}
/* @brief initiates the state struct
*
* @param state pointer to the state struct that should be initiated */
inline void PSYC_initState (PSYC_State* state)
{
memset(state, 0, sizeof(PSYC_State));
}
inline void PSYC_nextBuffer (PSYC_State* state, PSYC_Array newBuf)
{
state->buffer = newBuf;
state->cursor = 0;
}
inline unsigned int PSYC_getContentLength (PSYC_State* s)
{
return s->contentLength;
}
inline unsigned int PSYC_getValueRemaining (PSYC_State* s)
{
return s->valueRemaining;
}
#endif
int PSYC_parse(PSYC_State* state,
uint8_t* modifier, PSYC_Array* name, PSYC_Array* value);