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  1. #include <stdio.h>                                                              
  2. #include <stdlib.h>                                                             
  3. #include <string.h>                                                             
  4. #define SIZE 50                                                                 
  5.  
  6. struct employee                                                                 
  7. {                                                                               
  8.     char *empname;                                                              
  9.     char *empid;                                                                
  10.     int age;                                                                    
  11.     char *addr;                                                                 
  12. };                                                                              
  13.  
  14. int main()                                                                      
  15. {                                                                               
  16.     FILE *fp = NULL;                                                            
  17.     int i = 0;                                                                  
  18.     struct employee var = {NULL, NULL, 0, NULL};                                
  19.     char line[SIZE] = {0}, *ptr = NULL;                                         
  20.  
  21.     /* uncommented in your code - Here reading from stdin instead 
  22.    
  23.     // Open file for Reading 
  24.     if (NULL == (fp = fopen("file.txt","r")))                                   
  25.     {                                                                           
  26.         perror("Error while opening the file.\n");                              
  27.         exit(EXIT_FAILURE);                                                     
  28.     }                                                                           
  29.    */
  30.  
  31.     /* Allocate Memory */                                                       
  32.     var.empname = malloc(SIZE);                                                 
  33.     var.empid = malloc(SIZE);                                                   
  34.     var.addr = malloc(SIZE);          
  35.  
  36.     /* Uncomment Below line - Here Reading from stdin 
  37.     while (EOF != fscanf(fp, "%s", line))                                       
  38.     */
  39.  
  40.     while (EOF != fscanf(stdin, "%s", line))                                       
  41.     {                                                                           
  42.         /* 1. Read each line from the file */                                   
  43.         printf("\n\n Read line:  %s\n", line);                       
  44.  
  45.         /* 2. Tokenise the read line, using "\" delimiter*/                     
  46.         ptr = strtok(line, "\\");                                               
  47.         printf("ptr at :%s\n", ptr);                                     
  48.         var.empname = ptr;                                                      
  49.  
  50.         while (NULL != (ptr = strtok(NULL, "\\")))                              
  51.         {                                                                       
  52.             i++;                                                                
  53.             printf("=====%d==== ptr: %s\n", i, ptr);                             
  54.  
  55.             /* 3. Store the tokens as per structure members , where (i==0) is first member and so on.. */
  56.             if(i == 1)                                                          
  57.                 var.empid = ptr;                                                
  58.             else if(i == 2)                                                     
  59.                 var.age = atoi(ptr);                                            
  60.             else if (i == 3)                                                    
  61.                 var.addr = ptr;                                                 
  62.         }                                                                       
  63.         i = 0;                                                                  
  64.         printf("After Reading: EmpName:[%s] EmpId:[%s] Age:[%d] Addr:[%s]\n", var.empname, var.empid, var.age, var.addr);                                     
  65.     }                                                                           
  66.  
  67.     //fclose(fp);                                                                 
  68.     return 0;                                                                   
  69. }                                                                                           
  70.  
  71.  
Success #stdin #stdout 0s 2384KB
comments (?)
stdin
copy 
empname1\t001\35\tcity1	
empname2\t002\37\tcity2
stdout
copy 

 Read line:  empname1\t001\35\tcity1
ptr at :empname1
=====1==== ptr: t001
=====2==== ptr: 35
=====3==== ptr: tcity1
After Reading: EmpName:[empname1] EmpId:[t001] Age:[35] Addr:[tcity1]


 Read line:  empname2\t002\37\tcity2
ptr at :empname2
=====1==== ptr: t002
=====2==== ptr: 37
=====3==== ptr: tcity2
After Reading: EmpName:[empname2] EmpId:[t002] Age:[37] Addr:[tcity2]
https://ideone.com/Kp9mzN
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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