Put tags infront and back of the string....

[agsrinivasan]

hi everyone...

I had done the program to search a string in a text file...Now i want to put tags,,like $$ into infornt of as well as after end of searched string

Herewith i had attached the code...

I had little confusion with this task...

Here is my program...

#include <stdio.h>
#include <stdlib.h>
#include<string.h>
 
 
int main (void) {
 
    FILE *Input;
 
    long lSize,StringId;
 
         size_t result;
 
        char *buffer;
 
        Input = fopen("/home/srinivas/Desktop/new.txt","r+");
    printf("Input value: %d\n",Input);
 
    if (Input ==NULL) {fputs ("File error",stderr); exit (1);}
 
    fseek (Input ,0 , SEEK_END);
 
    lSize = ftell (Input); printf(" The file size is = %ld\n",lSize);
 
        rewind (Input);
 
      // allocate memory to contain the whole file:
      buffer = (char*) malloc (sizeof(char)*lSize);
      if (buffer == NULL) {fputs ("Memory error",stderr); exit (2);}
 
      // copy the file into the buffer:
      result = fread (buffer,1,lSize,Input);
 
       long i,j,len,z,no=0,x = 0;
 
          char string1[20];
 
          printf(" Enter the Name you want to search \n");
 
           gets(string1);
 
          len = strlen(string1);
 
          //printf("The length of the string = %d ",len);
 
           char string2[20];
 
 
        //  char string3[20],ch;
 
            /* int g = 0;
 
                while(fgetc(Input)!=  ' ')
        {
         ch = fgetc(Input);
 
         string3[g] = ch ;
 
                g++;
 
        }          
 
printf("\n \n string3 = %s ",string3); */
 
         // char *compare;
 
        char string3[50];
 
    fseek (Input ,0 , SEEK_SET);       
 
    for(i=0;i < lSize ; i++)
    {
          if(string1[0] == buffer[i]){
 
             for(z=0, j=i ;j < i+len ;j++)
           {                 
 
                    string2[z] = buffer[j];
                         z++;
 
 
                       }
 
 
                  if(strcmp(string1,string2) == 0)
                    {
                        printf("string successfully searched\n ");
                             no++;
                                     printf(" \t \n String 2 is = %s",string2);
 
                                   }                                           
                         //else
                               //  printf("string Not found\n");
    }
 }
 printf("\t \n matched string is found in text file  %d times= ",no);
 
 //printf(" \t \n String 2 is = %s",string2);
 
 
 
fclose(Input);
 
 
 
 
 
}
 

[Ganon11]

Using char arrays, you will have to take the following steps:

1) Determine the size of the original string - possibly with strlen
2) Create a new char array of size strlen(original + 2 * (length of prefix/suffix if the same))
3) The first x characters should be set to your prefix
4) Manually copy the contents of the string to the new array
5) Add the suffix to the very end

[agsrinivasan]

hi,
I had tried with one more method...But it was tagging only first string...some logic Missing...

This is my code...partially modified....

......................................

          for(i=0;i < lSize ; i++)
  {
      if(string1[0] == buffer[i])
         {
              for(z=0, j=i ;j < i+len ;j++)
           {                 
                         string2[z] = buffer[j];
                         z++;
                     }         
                       // if(strcmp(string1,string2) == 0)
                 //  {
                            //while(buffer != -1){    
                        char *pch;    
                                   pch = strstr(buffer,string2);    
                        strncpy (pch-1,"$",1);
                         strncpy(pch+len,"$",1);       
                                        printf("\t string successfully searched\n \n  ");
                             no++;
                                        printf(" \t \n String 2 is = %s",string2);
                                        //pch+len;
                          //   }
 
 
 
 
//
              }
}
      printf("\t \n matched string is found in text file  %d times\n \n ",no);
      puts(buffer);
 //printf(" \t \n String 2 is = %s",string2);
 
   fclose(Input);
 
}

I got output in a bufffer....i tried a word CBE....see the output...

19. WP.4832/2007 M/S.J.KARUNANIDHI $CBE$ (POLLUTION) S. HEMANANTH
FOR DISP WITH
MP.1/2007
FOR STAY
MP.2/2007

20. WP.4834/2007 M/S.J.KARUNANIDHI CBE
(POLLUTION) S. HEMANANTH
For Dispense with
MP.1/2007
For Stay
MP.2/2007

21. WP.4836/2007 M/S.J.KARUNANIDHI CBE
(POLLUTION) S. HEMANANTH
To dispense with
MP.1/2007
For Stay
MP.2/2007

22. WP.4842/2007 MR.V.KALYANARAMAN CBE
(POLLUTION)
For Direction
MP.1/2007


first time only getting tagged..

any suggestions....

[agsrinivasan]

Using char arrays, you will have to take the following steps:

1) Determine the size of the original string - possibly with strlen
2) Create a new char array of size strlen(original + 2 * (length of prefix/suffix if the same))
3) The first x characters should be set to your prefix
4) Manually copy the contents of the string to the new array
5) Add the suffix to the very end

Thanks a lot....it is working..



Regards...

srini