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https://gitee.com/jiuyilian/embedded-framework.git
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109 lines
2.1 KiB
C
109 lines
2.1 KiB
C
#include "file_io.h"
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void _write_config_file(char *cfgname)
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{
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}
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void __read_config_file(char *cfgName)
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{
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}
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/**
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*@brief 从给定字符串中提取key和value对。
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*处理字符串data，从中取出第一个key和value并存入key和value
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*@param data 要解析的字符串
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*@param key 保存提取到的KEY串
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*@param value 保存提取到的value串
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*@param maxlen key和value能容忍的最大字符串长度
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*@return 处理完字符串后，指针指向的位置
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*
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*/
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char *sysfunc_get_key_value(char *data, char *key, char *value, int maxlen)
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{
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int i = 0;
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char *temp = data;
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while(*temp && *temp == ';')
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temp++;
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while(*temp && *temp != ';' && *temp != '='
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&& i < maxlen)
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{
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key[i++] = *temp++;
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}
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key[i] = '\0';
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if (*temp == ';' || *temp == '\0')
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value[0] = '\0';
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else if(*temp == '=')
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{
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i = 0;
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temp++;
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while(*temp && *temp != ';'
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&& i < maxlen)
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{
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value[i++] = *temp++;
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}
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value[i] = 0;
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}
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return temp;
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}
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//返回参数长度
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U32 ParseParam(char *pParam, int nMaxLen, char *pBuffer)
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{
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int nLen = 0;
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while(pBuffer && *pBuffer && *pBuffer != ';')
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{
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*pParam++ = *pBuffer++;
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nLen++;
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}
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return nLen;
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}
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//从acData中，查找key的值，保存在value中
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static char *__get_value(char *acData, char *key, char *value, int nMaxLen)
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{
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char *pItem, *pValue;
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U32 nRead;
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char acBuff[256]={0};
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U32 nOffset = 0;
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int nCh = 0;
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char *out_ptr = NULL;
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while ((nRead = ParseParam(acBuff, 64, acData+nOffset)) > 0)
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{
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acBuff[nRead] = 0; //把分号去掉
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nOffset += (nRead+1);
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if (strncmp(acBuff, "[CH1]", 5) == 0)
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{
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nCh = 0;
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}
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else if (strncmp(acBuff, "[CH2]", 5) == 0)
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{
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nCh = 1;
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}
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else if (strncmp(acBuff, "[CH3]", 5) == 0)
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{
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nCh = 2;
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}
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else if (strncmp(acBuff, "[ALL]", 5) == 0)
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{
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nCh = 0;
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}
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else
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{
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pItem = strtok_r(acBuff, "=", &out_ptr);
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pValue = strtok_r(NULL, "\r", &out_ptr);
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//Printf("pItem: %s, pValue: %s\n", pItem, pValue);
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if (pValue == NULL)
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pValue = "";
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if (pItem != NULL && strcmp(pItem, key) == 0)
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{
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strncpy(value, pValue, nMaxLen);
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return value;
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}
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}
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}
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return NULL;
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}
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