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sort.cpp
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sort.cpp
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/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Purpose: Sort datafile according to a given column
Changes log:
- Apr/7-JZ: Checked
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
*/
#include <dynamo.h>
int main(int argc,char *argv[])
{
//////////////////////////////////////////////////////////////
//PROGRAM VARIBALES
//////////////////////////////////////////////////////////////
char datafile[FSIZE]="",sortfile[FSIZE]="";
char reverse[5]="",options[LSIZE]="";
int col=0;
//////////////////////////////////////////////////////////////
//INITIALIZE
//////////////////////////////////////////////////////////////
TITLE(stdout,'*',"SORT DATA FILE");
//////////////////////////////////////////////////////////////
//SET OPTIONS AND USAGE
//////////////////////////////////////////////////////////////
SET_OPTIONS(":hvVf:s:c:r");
SET_USAGE(
"=======================================================================================\n"
"Usage:\n\n"
"\t./program -f <datafile> [-s <sortedfile>] -c <col>\n"
"\t [-r] [-o '<options>']\n"
"\n"
"Sort <datafile> according to column <col>. Use option -r if want a reverse order\n"
"Optative <options> are additional options for the bash sort command\n"
"\n"
"=======================================================================================\n"
);
//////////////////////////////////////////////////////////////
//READ OPTIONS
//////////////////////////////////////////////////////////////
while(ITEROPTIONS){
switch(OPTION){
case 'f':
strcpy(datafile,optarg);
break;
case 's':
strcpy(sortfile,optarg);
break;
case 'c':
col=atoi(optarg);
break;
case 'r':
strcpy(reverse,"-r");
break;
case 'o':
strcpy(options,optarg);
break;
//========================================
//COMMON
//========================================
case 'v':
VERBOSITY=1;
break;
case 'V':
VERBOSITY=2;
break;
//DETECT ERRORS
OPTION_ERRORS;
}
}
//////////////////////////////////////////////////////////////
//VALIDATE OPTIONS
//////////////////////////////////////////////////////////////
if(isBlank(datafile)){
fprintf(stderr,"Error: No datafile was provided\n");
PRINT_USAGE;
EXIT;
}
if(!fileExists(datafile)){
fprintf(stderr,"Error: Datafile '%s' does not exist\n",datafile);
PRINT_USAGE;
EXIT;
}
if(col==0){
col=1;
}
if(isBlank(sortfile)){
sprintf(sortfile,"%s.srt",datafile);
}
//////////////////////////////////////////////////////////////
//REPORT INPUT INFORMATION
//////////////////////////////////////////////////////////////
if(VERBOSE(1)){
fprintf(stdout,"Datafile: %s\n",datafile);
fprintf(stdout,"Sorted file: %s\n",sortfile);
fprintf(stdout,"Selected column: %d\n",col);
fprintf(stdout,"Reverse: %s\n",reverse);
fprintf(stdout,"Other options: %s\n",options);
}
//////////////////////////////////////////////////////////////
//PROGRAM
//////////////////////////////////////////////////////////////
char cmd[LSIZE];
fprintf(stdout,
"Sorting file '%s' according to column %d...\n",
datafile,col);
sprintf(cmd,"grep '#' %s > %s",datafile,sortfile);
system(cmd);
sprintf(cmd,
"grep -v '#' %s | sort -g -k %d %s %s >> %s",
datafile,col,reverse,options,sortfile);
system(cmd);
fprintf(stdout,
"Sorted file '%s' saved...\n",
sortfile);
return 0;
}