Question

I can't get the program to read from prospect.csv file and produce the correct prospect_clean.csv file. Can you help with explanation to the answer?

Project 15-3: File Cleaner

Create an application that reads a file that contains an email list, reformats the data, and writes the cleaned list to another file.

Console

File Cleaner

Source file:  prospects.csv

Cleaned file: prospects_clean.csv

Congratulations! Your file has been cleaned!

The prospect.csv file

FIRST,LAST,EMAIL

james,butler,[email protected]

Josephine,Darakjy,[email protected]

ART,VENERE,[email protected]

...

The prospect_clean.csv file

First,Last,email

James,Butler,[email protected]

Josephine,Darakjy,[email protected]

Art,Venere,[email protected]

...

Specifications

Your instructor should provide a CSV file named prospects.csv that contains a list of prospects.

Your application should fix the formatting problems and write a file named prospects_clean.csv.

All names should use title case (an initial capital letter with the rest lowercase).

All email addresses should be lowercase.

All extra spaces at the start or end of a string should be removed.

Answer 1

#include<stdio.h>
#include<ctype.h>
int main(int argc, char **argv)
{
   int i,space_count,column_count,letter_position,line_count;
   char container,pre_container;
   FILE *input,*output;

  
   pre_container = 'a';
   input=fopen("prospects.csv","r");
   if(input == NULL)
   {
       printf("\n\t Error in reading file\n");
       return 1;
   }  

   output=fopen("prospects_clean.csv","w");
   if(output == NULL)
   {
       printf("\n\t Error in writing file\n");
       return 1;
   }  
  
   space_count=0;
   column_count=1;
   letter_position=0;
   line_count = 0;
   fscanf(input,"%c",&container);
   while(container != EOF)
   {
       if((container==' ')||(container=='\t'))
       {
           space_count++;
           line_count=0;
       }
       else if(container ==',')
       {
           space_count = 0;
           column_count++;
           letter_position = 0;
           line_count = 0;
           fprintf(output,",");
       }
       else if(container=='\n')
       {
           space_count = 0;
           column_count = 1;
           letter_position = 0;
           line_count++;
       /*   As end of file differ in each operating system. In my PC, at the end of file I get newline character in scanning */
           if((line_count >= 3)||(pre_container == '\r'))
           {
               fprintf(output,"\r\n");
               break;
           }
           else if(line_count == 1)
               fprintf(output,"\n");
           else
               ;
       }
      
       else if((letter_position==0) && (column_count != 3))
       {
           space_count = 0;
           line_count = 0;
           if(islower(container))
               fprintf(output,"%c",toupper(container));
           else  
               fprintf(output,"%c",container);
           letter_position ++;
       }
       else
       {
           line_count = 0;
           for(i=0;i<space_count;i++)
           {
               fprintf(output," ");
           }
           space_count=0;
           if(isupper(container))
               fprintf(output,"%c",tolower(container));
           else  
               fprintf(output,"%c",container);
           letter_position ++;
       }

      
       pre_container = container;
       fscanf(input,"%c",&container);  
   }
   fclose(input);
   fclose(output);
   printf("\n\tCongratulations! Your file has been cleaned!\n");  
   return 0;
}

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prospect.csv

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prospect_clean.csv