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    Need help in File Parsing in C/C++ !!


    The requirement is to capture statistics of uuid occurrences for ALIVE/SEARCH/BYEBYE (it can be all 3, combinations of 2 each, or one alone) in a dynamically populated file in run time.

    I am able to print all 3 combinations, but not in combination of 1 or 2 e.g.

    If my input.txt is like this :
    uuid:22314754-a597-490b-8a93-02cfae01036b ALIVE 16
    uuid:22314754-a597-490b-8a93-02cfae01036b BYEBYE 8
    uuid:22314754-a597-490b-8a93-02cfae01036b SEARCH 8
    uuid:50e65653-7525-485d-83bf-d293558c4264 ALIVE 32
    uuid:50e65653-7525-485d-83bf-d293558c4264 BYEBYE 8
    uuid:50e65653-7525-485d-83bf-d293558c4264 SEARCH 132
    uuid:55076f6e-6b79-4d65-6497-180373763bc1 ALIVE 113
    uuid:55076f6e-6b79-4d65-6497-180373763bc1 BYEBYE 112
    uuid:55076f6e-6b79-4d65-6497-180373763bc1 SEARCH 111
    uuid:T0100203354 ALIVE 1
    uuid:T0100203354 BYEBYE 2
    uuid:T0100203354 SEARCH 3

    My code :

    Code:
    #include<stdio.h>
    #include<string.h>
    struct uid
    {
    
    char uid_val[100];
    char state[100];
    int temp_count;
    int alive_count;
    int search_count;
    int bye_count;
    
    }UID[100];
    
    
    
    int main()
    {
    
    char str[100];
    int i = 0;
    
    int line = 0;
    
    char temp_val[100] = "waseem";
    
    FILE *fp1 = fopen("input.txt","r");
    FILE *fp2=fopen("output.txt","w");
    
    
    printf("init value is %s \n",temp_val);
    while(!feof(fp1))
    {
    
            fscanf(fp1,"%s %s %d",UID[i].uid_val,UID[i].state,&UID[i].temp_count);
    
            int ret = 0;
            ret=strcmp(UID[i].uid_val,temp_val);
            if (ret!=0)
    
            {
                   printf("new UID_val is %s\n",UID[i].uid_val);
    //              i++;
            }
            else
            {
    
            }
    
            temp_val[0] = '\0';
    
            strcpy(temp_val,UID[i].uid_val);
    //      printf("value is %s and %s and ret is %d\n",temp_val,UID[i].uid_val,ret);
    
            if(strcmp(UID[i].state,"ALIVE")==0)
            {
                    UID[i].alive_count = UID[i].temp_count;
            }
            else if(strcmp(UID[i].state,"BYEBYE")==0)
            {
                    UID[i].search_count = UID[i].temp_count;
            }
            else
            {
                    UID[i].bye_count = UID[i].temp_count;
            }
    
            //printf("UID is %s  State is %s  Count is %d\n",UID[i].uid_val,UID[i].state,UID[i].alive_count);
            line++;
    
            if(line%3 == 0)
            {
                    i++;
            }
    }
    
    //printf("value of is %d and lines is %d\n",i,line);
    int n = 0;
    //fp2=fopen("output.txt","w");
    
    if (fp2==NULL)
      {
    printf("cant output to file\n");
    }
    else
    
    {
    fprintf(fp2,"Device ID\t\t\t\t\tALIVE\tBYEBYE\tSEARCH\n");
      for(n = 0;n < i;n++)
            {
    fprintf(fp2,"%s\t%d\t%d\t%d\n",UID[n].uid_val,UID[n].alive_count,UID[n].search_count,UID[n].bye_count);
    }
    
    
    }
    
    //      for(n = 0;n < i;n++)
            {
    //              printf("%s    %d %d  %d\n",UID[n].uid_val,UID[n].alive_count,UID[n].search_count,UID[n].bye_count);
    
    //      }
    
            fclose(fp1);
            fclose (fp2);
    
            return 0;
    }}


    Gives the following output ->(output.txt)

    Device ID ALIVE BYEBYE SEARCH
    uuid:22314754-a597-490b-8a93-02cfae01036b 16 8 8
    uuid:50e65653-7525-485d-83bf-d293558c4264 32 8 132
    uuid:55076f6e-6b79-4d65-6497-180373763bc1 113 112 111
    uuid:T0100203354 1 2 3

    I want to generalize the code such that uuid occurrence does not have to be all 3 (ALIVE/SEARCH/BYEBYE), the occurrences can be any combination and code should work. e.g my code gives wrong results when input.txt contains the following:

    uuid:22314754-a597-490b-8a93-02cfae01036b BYEBYE 8
    uuid:22314754-a597-490b-8a93-02cfae01036b SEARCH 8
    uuid:50e65653-7525-485d-83bf-d293558c4264 ALIVE 32
    uuid:50e65653-7525-485d-83bf-d293558c4264 BYEBYE 8
    uuid:55076f6e-6b79-4d65-6497-180373763bc1 ALIVE 113
    uuid:55076f6e-6b79-4d65-6497-180373763bc1 BYEBYE 112
    uuid:55076f6e-6b79-4d65-6497-180373763bc1 SEARCH 111
    uuid:T0100203354 BYEBYE 2

    I am using ubuntu for gcc/g+ compiler.
  2. #2
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    Also here and here and here, and who knows how many other places.

    Jim
    Last edited by jimblumberg; September 13th, 2013 at 04:10 AM.
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    Those are different sites and I am looking for a solution.Thanks.

    Comments on this post

    • salem disagrees : http://www.catb.org/~esr/faqs/smart-questions.html#forum

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