erasing some words

[cman]

Hi All

Ive got a problem, say i have a few characters read from a file and it happens to be "<*hello*>" how would i be able to remove the characters between < & > . ? Any hints would be appreciated.

#include <stdio.h>

int main()
{
int ch, inbracket = 0;
printf( "Enter Text File: " );
while ( (ch=getchar()) != EOF ) {
if ( ch == '<' ) {
if ( (ch=getchar()) == '*' )
inbracket = 1;
}

im kinda stuck at this point, not sure how to remove the characters.

[Dev]

I have not tried it but am sure it should work.
After you check for existence of < character
make a null while loop like while(getchar()!='>');
It should discard all characters upto > ( I suppose)

If I get more time i will try to work out that problem.

[Dev]

This is what I have tried.

Try making changes to it according to your requirement like existence of '*' character.

It works fine.

#include <stdio.h>

int main()
{
char ch;
char str[100];
int pos=0;
printf("Enter input string \n");
while((ch=getchar())!='\n')
{
if(ch=='<')
while(getchar()!='>');
else
str[pos++]=ch;
}
str[pos]='\0';
printf("\n Converted string is :-\n");
printf("%s",str);
getch();
}

If this is not what you want ( atleast logically ) then first post your logic in terms of algorithm.

[Hammer]

#include <stdio.h>

int main(void)
{
  int c;
  int Inside = 0;
  while ((c = getchar()) != EOF && c != '\n')
  {
    if (c == '<') Inside = 1;
    if (!Inside)
    {
      putchar (c);
    }
    if (c == '>') Inside = 0;
  }
  return 0;
}

/*
 Output

This is <blah blah> a test
This is  a test

*/

[cman]

what if you need to characters to determine a starting point and an ending point. E.g. start: "<*" end: "*>"
can you use getchar twice?

im stuck with two values but okay with one character, unable to use arrays since havent learnt it yet.

[Hammer]

Just "remember" the previous character that you read in another variable, the compare that with the current.

>>if (prev=='<' && current=='*')

or you could read a line at a time, and use strstr().