#include<stdio.h>

#include<string.h>

#include<stdlib.h>

typedef struct __Json_

{

    int byExposureModeSet;

    int byFocusMode;

    int wMinFocusDistance;

}Json;

int HandleStr(char *pStr, Json *pStuJson);

int GetValue(char **pStr, char *pValue);

void EarseSpace(char *pStr);

int DelLeftSpace(char *szbuf);

int DelRightSpace(char *szbuf);

int main()

{

    char str[] = "\"byExposureModeSet\" : \"2\", \"byFocusMode\" : \"2\", \"wMinFocusDistance\" : \"10\"";

    printf("%s\n", str);

    Json stuJson = {};

    memset(&stuJson, , sizeof(stuJson));

    HandleStr(str, &stuJson);

    printf("stuJson.byExposureModeSet = %d, stuJson.byFocusMode = %d, stuJson.wMinFocusDistance = %d\n",

        stuJson.byExposureModeSet, stuJson.byFocusMode, stuJson.wMinFocusDistance);

    return ;

}

int HandleStr(char *pStr, Json *pStuJson)

{

    int iRet = -;

    char *tmp = pStr;

    char key[] = {};

    char value[] = {};

    while(tmp != NULL)

    {

        memset(key, , sizeof(key));

        memset(value, , sizeof(value));

        iRet = GetValue(&tmp, key);

        tmp = strstr(tmp, ":") + ;

        iRet = GetValue(&tmp, value);

        printf("{%s} : {%s}\n", key, value);

        if ( == strcmp(key, "byExposureModeSet"))

        {

            pStuJson->byExposureModeSet = atoi(value);

        }

        else if ( == strcmp(key, "byFocusMode"))

        {

            pStuJson->byFocusMode = atoi(value);

        }

        else if ( == strcmp(key, "wMinFocusDistance"))

        {

            pStuJson->wMinFocusDistance = atoi(value);

        }

        tmp = strstr(tmp, ",");

    }

    return iRet;

}

int GetValue(char **pStr, char *pValue)

{

        int iRet = ;

        char *pBegin = *pStr;

        char *pEnd = NULL;

        pBegin = strstr(pBegin, "\"");

        pEnd = strstr(pBegin+, "\"");

        int len_str = pEnd-pBegin;

        memcpy(pValue, pBegin+, len_str-);

        //printf("pValue = {%s}\n", pValue);

        iRet = len_str;

        *pStr = pEnd;

        return iRet;

}

int DelLeftSpace(char *szbuf)

{

    int iRet = -;

    int iLen = ;

    int i = ;

    int j = ;

    int k = ;

    if(NULL != szbuf)

    {

        iRet = ;

        iLen = strlen(szbuf);

        for(i = ; i < iLen; i++)

        {

            if( (' ' != szbuf[i]) && ('\t' != szbuf[i])

                && ('\r' != szbuf[i]) && ('\n' != szbuf[i]) )

            {

                if( != i)

                {

                    j = i;

                    k = ;

                    while(j < iLen)

                    {

                        szbuf[k++] = szbuf[j++];

                    }

                    szbuf[k] = '\0';

                }

                break;

            }

            if (i == (iLen - ))

            {

                szbuf[] = '\0';

                break;

            }

        }

    }

    return iRet;

}

int DelRightSpace(char *szbuf)

{

    int iRet = -;

    int iLen = ;

    int i = ;

    if(NULL != szbuf)

    {

        iRet = ;

        iLen = strlen(szbuf);

        for(i = (iLen - ); i >= ; i--)

        {

            if( (' ' != szbuf[i]) && ('\t' != szbuf[i])

                && ('\r' != szbuf[i]) && ('\n' != szbuf[i]) )

            {

                if(i != iLen - )

                {

                    szbuf[i+] = '\0';

                }

                break;

            }

            if(i <= )

            {

                szbuf[] = '\0';

                break;

            }

        }

    }

    return iRet;

}

void EarseSpace(char *pStr)

{

    char *pTmp = pStr;

    int len = strlen(pTmp);

    int i = len - ;

    for (; i > ; i--)

    {

        if (pTmp[i-] != ' ')

        {

            pTmp[i] = ;

            break;

        }

    }

    int k = ;

    int j = ;

    for (i = ; i < len; i++)

    {

        if (i !=  && pTmp[i] != ' ')

        {

            k = i;

            while(k < len)

            {

                pTmp[j++] = pTmp[k++];

            }

            break;

        }

    }

    pStr = pTmp;

}