nmea_parseutil.c

the example file that can decode the NMEA protocol

#include <stdlib.h>
#include <string.h>

#include "NMEA_Lib.h"


void sentenceToWPID(char * sentence, UINT32 * uint32_ptr, WPID * sentence_index, UINT32 position, UINT32 * flags)
{
    UINT8 i = 0;
    CHAR sub_str[15];
    UINT32 subsentence_index = 0;

    if(',' == sentence[*sentence_index] && ',' != sentence[*sentence_index+1])
    {
        (*sentence_index)++;
        while(',' != sentence[*sentence_index])
        {
            sub_str[subsentence_index++] = sentence[(*sentence_index)++];
        }
        *uint32_ptr = atoi(sub_str);
    }
    else
    {
        (*sentence_index)++;
        *uint32_ptr = 0;
    }

    return;
}



void sentenceToUTC(char * sentence, UINT32 * uint32_ptr, UTC * sentence_index, UINT32 position, UINT32 * flags)
{
    UINT8 i = 0;
    CHAR sub_str[15];
    UINT32 subsentence_index = 0;

    if(',' == sentence[*sentence_index] && ',' != sentence[*sentence_index+1])
    {
        (*sentence_index)++;
        while(',' != sentence[*sentence_index])
        {
            sub_str[subsentence_index++] = sentence[(*sentence_index)++];
        }
        *uint32_ptr = atoi(sub_str);
    }
    else
    {
        (*sentence_index)++;
        *uint32_ptr = 0;
    }

    return;
}


void sentenceToPOINT(char * sentence, POINTPTR point_ptr, UINT32 * sentence_index, UINT32 position, UINT32 * flags)
{
    UINT8 i = 0;
    CHAR sub_str[15];

    if(',' == sentence[*sentence_index] && ',' != sentence[*sentence_index+1])
    {
        (*sentence_index)++;
        while('.' != sentence[*sentence_index])
        {
            sub_str[i] = sentence[(*sentence_index)];
            (*sentence_index)++;
            i++;
        }
        sub_str[i] = '\0';
        point_ptr->x = atoi(sub_str);

        i = 0;
        (*sentence_index)++;
        while(',' != sentence[*sentence_index])
        {
            sub_str[i] = sentence[*sentence_index];
            (*sentence_index)++;
            i++;
        }
        sub_str[i] = '\0';
        point_ptr->y = atoi(sub_str);
    }
    else
    {
        (*sentence_index)++;
        point_ptr->x = 0;
        point_ptr->y = 0;
    }

    return;
}

void sentenceToUINT32(char * sentence, UINT32 * uint32_ptr, UINT32 * sentence_index, UINT32 position, UINT32 * flags)
{
    UINT8 i = 0;
    CHAR sub_str[15];
    UINT32 subsentence_index = 0;

    if(',' == sentence[*sentence_index] && ',' != sentence[*sentence_index+1])
    {
        (*sentence_index)++;
        while(',' != sentence[*sentence_index])
        {
            sub_str[subsentence_index++] = sentence[(*sentence_index)++];
        }
        *uint32_ptr = atoi(sub_str);
    }
    else
    {
        (*sentence_index)++;
        *uint32_ptr = 0;
    }

    return;
}

void sentenceToUINT16(char * sentence, UINT16 * uint16_ptr, UINT32 * sentence_index, UINT32 position, UINT32 * flags)
{
    UINT8 i = 0;
    CHAR sub_str[15];
    UINT32 subsentence_index = 0;

    if(',' == sentence[*sentence_index] && ',' != sentence[*sentence_index+1])
    {
        (*sentence_index)++;
        while(',' != sentence[*sentence_index])
        {
            sub_str[subsentence_index++] = sentence[(*sentence_index)++];
        }
        *uint16_ptr = atoi(sub_str);
    }
    else
    {
        (*sentence_index)++;
        *uint16_ptr = 0;
    }

    return;
}


void sentenceToUINT8(char * sentence, UINT8 * uint8_ptr, UINT32 * sentence_index, UINT32 position, UINT32 * flags)
{
    UINT8 i = 0;
    CHAR sub_str[15];
    UINT32 subsentence_index = 0;

    if(',' == sentence[*sentence_index] && ',' != sentence[*sentence_index+1])
    {
        (*sentence_index)++;
        while(',' != sentence[*sentence_index])
        {
            sub_str[subsentence_index++] = sentence[(*sentence_index)++];
        }
        *uint8_ptr = atoi(sub_str);
    }
    else
    {
        (*sentence_index)++;
        *uint8_ptr = 0;
    }

    return;
}



void sentenceToCHAR(CHAR * sentence, CHAR * char_ptr, UINT32 * sentence_index, UINT32 position, UINT32 * flags)
{
    UINT8 i = 0;
    CHAR sub_str[15];
    UINT32 subsentence_index = 0;

    if(',' == sentence[*sentence_index] && ',' != sentence[*sentence_index+1])
    {
        (*sentence_index)++;
        *char_ptr = sentence[(*sentence_index)++];
    }
    else
    {
        (*sentence_index)++;
    }

    return;
}



void sentenceToWAYPOINT(CHAR * sentence, CHAR * waypoint_ptr, UINT32 * sentence_index, UINT32 position, UINT32 * flags)
{
    UINT8 i = 0;
    CHAR sub_str[15];
    UINT32 subsentence_index = 0;


    if(',' == sentence[*sentence_index] && ',' != sentence[*sentence_index+1])
    {
        (*sentence_index)++;
        strncpy(waypoint_ptr, sentence+(*sentence_index), 4)[4] = '\0';
        *sentence_index += 5;
    }
    else
    {
        (*sentence_index)++;
        waypoint_ptr[0] = '\0';
    }


    return;
}


void sentenceToDATE(CHAR * sentence, DATE * date_ptr, UINT32 * sentence_index, UINT32 position, UINT32 * flags)
{

    if(',' == sentence[*sentence_index] && ',' != sentence[*sentence_index+1])
    {
        (*sentence_index)++;
        strncpy(date_ptr, sentence+(*sentence_index), 6)[6] = '\0';
        *sentence_index += 6;
    }
    else
    {
        (*sentence_index)++;
        date_ptr[0] = '\0';
    }
    return;
}


void sentenceToTIME(CHAR * sentence, CHAR * time_ptr, UINT32 * sentence_index, UINT32 position, UINT32 * flags)
{
    UINT32 str_index = 0;

    if(',' == sentence[*sentence_index] && ',' != sentence[*sentence_index+1])
    {
        /*assert(isdigit(sentence[4]));*/
        (*sentence_index)++;
        while(',' != sentence[*sentence_index])
        {
            time_ptr[str_index] = sentence[*sentence_index];
            (*sentence_index)++;
            str_index++;
        }
        time_ptr[str_index] = '\0';
    }
    else
    {
        (*sentence_index)++;
        time_ptr[0] = '\0';
    }

    return;
}


void sentenceToBOOL(char * sentence, BOOL * char_ptr, UINT32 * sentence_index, UINT32 position, UINT32 * flags)
{
    UINT8 i = 0;
    CHAR sub_str[15];
    UINT32 subsentence_index = 0;

    if(',' == sentence[*sentence_index] && ',' != sentence[*sentence_index+1])
    {
        (*sentence_index)++;
        *char_ptr = sentence[(*sentence_index)++];
    }
    else
    {
        (*sentence_index)++;
    }

    return;
}


void sentenceFromBOOL(char * sentence, BOOL * char_ptr, UINT32 * sentence_index, UINT32 position, UINT32 * flags)
{
    UINT8 i = 0;
    CHAR sub_str[15];
    UINT32 subsentence_index = 0;

    if(',' == sentence[*sentence_index] && ',' != sentence[*sentence_index+1])
    {
        (*sentence_index)++;
        *char_ptr = sentence[(*sentence_index)++];
    }
    else
    {
        (*sentence_index)++;
    }

    return;
}



void sentenceFromWPID(char * sentence, WPID * uint32_ptr, UINT32 * sentence_index, UINT32 position, UINT32 * flags)
{
    UINT8 i = 0;
    CHAR sub_str[15];
    UINT32 subsentence_index = 0;

    if(',' == sentence[*sentence_index] && ',' != sentence[*sentence_index+1])
    {
        (*sentence_index)++;
        while(',' != sentence[*sentence_index])
        {
            sub_str[subsentence_index++] = sentence[(*sentence_index)++];
        }
        *uint32_ptr = atoi(sub_str);
    }
    else
    {
        (*sentence_index)++;
        *uint32_ptr = 0;
    }

    return;
}



void sentenceFromUTC(char * sentence, UTC * uint32_ptr, UINT32 * sentence_index, UINT32 position, UINT32 * flags)
{
    UINT8 i = 0;
    CHAR sub_str[15];
    UINT32 subsentence_index = 0;

    if(',' == sentence[*sentence_index] && ',' != sentence[*sentence_index+1])
    {
        (*sentence_index)++;
        while(',' != sentence[*sentence_index])
        {
            sub_str[subsentence_index++] = sentence[(*sentence_index)++];
        }
        *uint32_ptr = atoi(sub_str);
    }
    else
    {
        (*sentence_index)++;
        *uint32_ptr = 0;
    }

    return;
}


void sentenceFromPOINT(char * sentence, POINTPTR point_ptr, UINT32 * sentence_index, UINT32 position, UINT32 * flags)
{
    UINT8 i = 0;
    CHAR sub_str[15];

    if(',' == sentence[*sentence_index] && ',' != sentence[*sentence_index+1])
    {
        (*sentence_index)++;
        while('.' != sentence[*sentence_index])
        {
            sub_str[i] = sentence[(*sentence_index)];
            (*sentence_index)++;
            i++;
        }
        sub_str[i] = '\0';
        point_ptr->x = atoi(sub_str);

        i = 0;
        (*sentence_index)++;
        while(',' != sentence[*sentence_index])
        {
            sub_str[i] = sentence[*sentence_index];
            (*sentence_index)++;
            i++;
        }
        sub_str[i] = '\0';
        point_ptr->y = atoi(sub_str);
    }
    else
    {
        (*sentence_index)++;
        point_ptr->x = 0;
        point_ptr->y = 0;
    }

    return;
}

void sentenceFromUINT32(char * sentence, UINT32 * uint32_ptr, UINT32 * sentence_index, UINT32 position, UINT32 * flags)
{
    UINT8 i = 0;
    CHAR sub_str[15];
    UINT32 subsentence_index = 0;

    if(',' == sentence[*sentence_index] && ',' != sentence[*sentence_index+1])
    {
        (*sentence_index)++;
        while(',' != sentence[*sentence_index])
        {
            sub_str[subsentence_index++] = sentence[(*sentence_index)++];
        }
        *uint32_ptr = atoi(sub_str);
    }
    else
    {
        (*sentence_index)++;
        *uint32_ptr = 0;
    }

    return;
}

void sentenceFromUINT16(char * sentence, UINT16 * uint16_ptr, UINT32 * sentence_index, UINT32 position, UINT32 * flags)
{
    UINT8 i = 0;
    CHAR sub_str[15];
    UINT32 subsentence_index = 0;

    if(',' == sentence[*sentence_index] && ',' != sentence[*sentence_index+1])
    {
        (*sentence_index)++;
        while(',' != sentence[*sentence_index])
        {
            sub_str[subsentence_index++] = sentence[(*sentence_index)++];
        }
        *uint16_ptr = atoi(sub_str);
    }
    else
    {
        (*sentence_index)++;
        *uint16_ptr = 0;
    }

    return;
}


void sentenceFromUINT8(char * sentence, UINT8 * uint8_ptr, UINT32 * sentence_index, UINT32 position, UINT32 * flags)
{
    UINT8 i = 0;
    CHAR sub_str[15];
    UINT32 subsentence_index = 0;

    if(',' == sentence[*sentence_index] && ',' != sentence[*sentence_index+1])
    {
        (*sentence_index)++;
        while(',' != sentence[*sentence_index])
        {
            sub_str[subsentence_index++] = sentence[(*sentence_index)++];
        }
        *uint8_ptr = atoi(sub_str);
    }
    else
    {
        (*sentence_index)++;
        *uint8_ptr = 0;
    }

    return;
}



void sentenceFromCHAR(char * sentence, CHAR * char_ptr, UINT32 * sentence_index, UINT32 position, UINT32 * flags)
{
    UINT8 i = 0;
    CHAR sub_str[15];
    UINT32 subsentence_index = 0;

    if(',' == sentence[*sentence_index] && ',' != sentence[*sentence_index+1])
    {
        (*sentence_index)++;
        *char_ptr = sentence[(*sentence_index)++];
    }
    else
    {
        (*sentence_index)++;
    }

    return;
}



void sentenceFromWAYPOINT(char * sentence, CHAR * waypoint_ptr, UINT32 * sentence_index, UINT32 position, UINT32 * flags)
{
    UINT8 i = 0;
    CHAR sub_str[15];
    UINT32 subsentence_index = 0;


    if(',' == sentence[*sentence_index] && ',' != sentence[*sentence_index+1])
    {
        (*sentence_index)++;
        strncpy(waypoint_ptr, sentence+(*sentence_index), 4)[4] = '\0';
        *sentence_index += 5;
    }
    else
    {
        (*sentence_index)++;
        waypoint_ptr[0] = '\0';
    }


    return;
}


void sentenceFromDATE(CHAR * sentence, CHAR * date_ptr, UINT32 * sentence_index, UINT32 position, UINT32 * flags)
{

    if(',' == sentence[*sentence_index] && ',' != sentence[*sentence_index+1])
    {
        (*sentence_index)++;
        strncpy(date_ptr, sentence+(*sentence_index), 6)[6] = '\0';
        *sentence_index += 6;
    }
    else
    {
        (*sentence_index)++;
        date_ptr[0] = '\0';
    }
    return;
}


void sentenceFromTIME(CHAR * sentence, CHAR * time_ptr, UINT32 * sentence_index, UINT32 position, UINT32 * flags)
{
    UINT32 str_index = 0;

    if(',' == sentence[*sentence_index] && ',' != sentence[*sentence_index+1])
    {
        /*assert(isdigit(sentence[4]));*/
        (*sentence_index)++;
        while(',' != sentence[*sentence_index])
        {
            time_ptr[str_index] = sentence[*sentence_index];
            (*sentence_index)++;
            str_index++;
        }
        time_ptr[str_index] = '\0';
    }
    else
    {
        (*sentence_index)++;
        time_ptr[0] = '\0';
    }

    return;
}