int GetValueInFile(char * fileName,char *bufferGet,char *locationStr,int xIndex)
{
FILE * fpSource;
char msgShow[256] = "";
int length = strlen(CurrentPath)+strlen(fileName);
memset(bufferGet,0,sizeof(bufferGet));
char * soureFileName = new char [length];
memset(soureFileName,0,length);
strcat(soureFileName,CurrentPath);
strcat(soureFileName,fileName);
if ( !(fpSource=fopen(soureFileName,"r") ) )
{
sprintf(msgShow,"\nFile Define In Config can't be read :\n%s\n",soureFileName);
help(msgShow);
return 1;
}
int xCount = 0 ;
bool GotThat = false;
while ( !feof(fpSource) )
{
char buffer[256] = "";
fgets(buffer,256,fpSource);
if ( strstr(buffer,locationStr)>0 )
{
xCount+=1;
int xlocation = strstr(buffer,locationStr)-buffer;
if ( xIndex==xCount )
{
int xBegin=xlocation+strlen(locationStr);
int xEnd= xBegin;
int length = strlen(buffer);
for ( ; buffer[xBegin]==' '; xBegin++ )
;
for ( xEnd= xBegin; (buffer[xEnd]!=' ')&&(buffer[xEnd]!='\n');xEnd++ )
;
if ( xEnd>xBegin )
{
GotThat = true;
strncpy(bufferGet,buffer+xBegin,(xEnd-xBegin));
printf("\nGet Value OK:\n%s\n",bufferGet);
}
else
{
memset(msgShow,0,256);
sprintf(msgShow,"\nThe %dst string By keyword: \n%s\nFound but is Null in File: \n%s\n",
xIndex,locationStr,fileName);
printf(msgShow);
}
break;
}
}
}
if ( !GotThat )
{
memset(msgShow,0,256);
sprintf(msgShow,"\nThe %dst string By keyword: \n%s\nNot found in File: \n%s",
xIndex,locationStr,fileName);
help(msgShow);
}
fclose(fpSource);
return GotThat?0:1;
}
int AddValueToFile(char * fileName,char *valueWrite,char *locationStr,int xIndex)
{
FILE * fpSource;
FILE * fpDest;
char msgShow[256] = "";
int length = strlen(CurrentPath)+strlen(fileName)+5;
char * tmpFileName = new char [length];
char * soureFileName = new char [length];
memset(tmpFileName,0,length);
memset(soureFileName,0,length);
sprintf(tmpFileName,"%s%s_tmp",CurrentPath,fileName);
strcat(soureFileName,CurrentPath);
strcat(soureFileName,fileName);
remove(tmpFileName);
if ( !(fpSource=fopen(soureFileName,"r") ) )
{
sprintf(msgShow,"\nFile Define In Config can't be read :\n%s\n",fileName);
help(msgShow);
return 1;
}
if (!( fpDest=fopen(tmpFileName,"w")))
{
help("\nCan't Create New File in current locatioin!");
return 1;
}
int xCount = 0 ;
bool GotThat = false;
while ( !feof(fpSource) )
{
char buffer[256] = "";
fgets(buffer,256,fpSource);
if ( !GotThat )
{
if ( strstr(buffer,locationStr)>0 )
{
xCount+=1;
if ( xIndex==xCount )
{
GotThat = true;
int xlocation = strstr(buffer,locationStr)-buffer;
char writeBuffer[256] = "";
strncpy(writeBuffer,buffer,xlocation+strlen(locationStr));
fputs(writeBuffer,fpDest);
fputs(valueWrite,fpDest);
memset(writeBuffer,0,256);
int xBegin = 0;
for ( xBegin= xlocation+strlen(locationStr);
(buffer[xBegin]!=' ')&&(buffer[xBegin]!='\n');
xBegin++ )
;
strcpy(writeBuffer,buffer+xBegin);
fputs(writeBuffer,fpDest);
}
else
fputs(buffer,fpDest);
}
else
fputs(buffer,fpDest);
}
else
fputs(buffer,fpDest);
}
fclose(fpSource);
fclose(fpDest);
if ( GotThat )
{
if ( 0!=remove(soureFileName) )
{
memset(msgShow,0,256);
sprintf(msgShow,"\nCan't remove file:\n%s\n",soureFileName);
help(msgShow);
printf("ERROR Code:%d\n",errno);
return 1;
}
if (0!=rename(tmpFileName,soureFileName))
{
memset(msgShow,0,256);
sprintf(msgShow,"\nCan't Rename in current locatioin!\n%s",soureFileName);
printf("ERROR Code:%d",errno);
help(msgShow);
return 1;
}
printf("\nSet Value OK\n");
}
else
{
remove(tmpFileName);
memset(msgShow,0,256);
sprintf(msgShow,"\nThe %dst string By keyword: \n%s\nNot found in File: \n%s",
xIndex,locationStr,soureFileName);
help(msgShow);
}
return GotThat?0:1;
}
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计算机技术与应用 → 『 C/C++编程思想 』 → 文件操作，將一個文件中的特定值插入到另一文件的指定處
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2011/9/30 14:20:00
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文件操作，將一個文件中的特定值插入到另一文件的指定處