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561eb31aa9
1 changed files with 38 additions and 17 deletions
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@ -1,15 +1,16 @@
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/**
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/**
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* @file psyc/parser.h
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* @file psyc/parser.h
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* @brief Interface for various psyc parser functions
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* @brief Interface for various psyc parser functions.
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*
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*
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* All parsing functions and the definitions they use are
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* All parsing functions and the definitions they use are
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* defined in this file.
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* defined in this file.
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*/
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*/
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/** @defgroup parsing Parsing Functions
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/**
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* @defgroup parsing Parsing Functions
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*
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*
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* This module contains all parsing functions
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* This module contains all parsing functions.
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* @{
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* @{
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*/
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*/
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#ifndef PSYC_PARSER_H
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#ifndef PSYC_PARSER_H
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@ -18,7 +19,8 @@
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#include <stdint.h>
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#include <stdint.h>
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#include <string.h>
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#include <string.h>
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/** Different types that a variable can have
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/**
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* Different types that a variable can have.
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*
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*
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* This enum lists PSYC variable types that
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* This enum lists PSYC variable types that
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* this library is capable of checking for
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* this library is capable of checking for
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@ -45,7 +47,8 @@ enum PSYC_Flags
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PSYC_HEADER_ONLY = 1,
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PSYC_HEADER_ONLY = 1,
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};
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};
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/** The return value definitions for packet parsing function
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/**
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* The return value definitions for the packet parsing function.
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* @see PSYC_parse()
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* @see PSYC_parse()
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*/
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*/
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enum PSYC_ReturnCodes
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enum PSYC_ReturnCodes
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@ -69,6 +72,10 @@ enum PSYC_ReturnCodes
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PSYC_INCOMPLETE = 9,
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PSYC_INCOMPLETE = 9,
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};
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};
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/**
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* The return value definitions for the list parsing function.
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* @see PSYC_parseList()
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*/
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enum PSYC_ListReturnCodes
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enum PSYC_ListReturnCodes
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{
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{
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PSYC_ERROR_LIST_DELIM = -5,
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PSYC_ERROR_LIST_DELIM = -5,
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@ -81,6 +88,9 @@ enum PSYC_ListReturnCodes
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PSYC_LIST_INCOMPLETE = 3,
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PSYC_LIST_INCOMPLETE = 3,
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};
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};
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/**
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* PSYC packet parts.
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*/
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enum PSYC_Parts
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enum PSYC_Parts
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{
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{
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PSYC_PART_RESET = -1,
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PSYC_PART_RESET = -1,
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@ -92,6 +102,10 @@ enum PSYC_Parts
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PSYC_PART_END,
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PSYC_PART_END,
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};
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};
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/**
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* List types.
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* Possible types are text and binary.
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*/
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enum PSYC_ListTypes
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enum PSYC_ListTypes
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{
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{
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PSYC_LIST_TEXT = 1,
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PSYC_LIST_TEXT = 1,
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@ -104,7 +118,9 @@ typedef struct
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const uint8_t * ptr;
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const uint8_t * ptr;
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} PSYC_Array;
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} PSYC_Array;
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/**
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* Struct for keeping parser state.
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*/
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typedef struct
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typedef struct
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{
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{
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size_t cursor; ///< current position in buffer
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size_t cursor; ///< current position in buffer
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@ -120,6 +136,9 @@ typedef struct
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size_t valueLength; ///< expected length of the value
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size_t valueLength; ///< expected length of the value
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} PSYC_State;
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} PSYC_State;
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/**
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* Struct for keeping list parser state.
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*/
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typedef struct
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typedef struct
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{
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{
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size_t cursor; ///< current position in buffer
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size_t cursor; ///< current position in buffer
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@ -197,13 +216,14 @@ inline size_t PSYC_getContentLength (PSYC_State* s)
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#endif
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#endif
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/** Parse PSYC packets.
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/**
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* Parse PSYC packets.
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*
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*
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* Generalized line-based packet parser.
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* Generalized line-based packet parser.
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*
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*
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* @param state An initialized PSYC_State
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* @param state An initialized PSYC_State
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* @param modifier A pointer to a character. In case of a variable, it will
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* @param modifier A pointer to a character. In case of a variable, it will
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* be set to the modifier of that variable
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* be set to the modifier of that variable
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* @param name A pointer to a PSYC_Array. It will point to the name of
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* @param name A pointer to a PSYC_Array. It will point to the name of
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* the variable or method and its length will be set accordingly
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* the variable or method and its length will be set accordingly
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* @param value A pointer to a PSYC_Array. It will point to the
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* @param value A pointer to a PSYC_Array. It will point to the
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@ -214,11 +234,12 @@ inline size_t PSYC_getContentLength (PSYC_State* s)
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* @see PSYC_State
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* @see PSYC_State
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* @see PSYC_Array
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* @see PSYC_Array
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*/
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*/
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PSYC_ReturnCodes PSYC_parse(PSYC_State* state, uint8_t* modifier, PSYC_Array* name, PSYC_Array* value);
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int PSYC_parse(PSYC_State* state, uint8_t* modifier, PSYC_Array* name, PSYC_Array* value);
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/**
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/**
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* List value parser.
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* List value parser.
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* @return see PSYC_ListReturnCodes.
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* @return one of PSYC_ReturnCodes
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* @see PSYC_ListReturnCodes
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*/
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*/
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int PSYC_parseList(PSYC_ListState* state, PSYC_Array *name, PSYC_Array* value, PSYC_Array* elem);
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int PSYC_parseList(PSYC_ListState* state, PSYC_Array *name, PSYC_Array* value, PSYC_Array* elem);
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