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Quest: page 34

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Write a program detab that replaces tabs in the input with the proper number of blanks to space to the next tab stop. Assume a fixed set of tab stops, say every n columns. Should n be a variable or a symbolic parameter ?

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• check if c is a tab then put X spaces there instead.

#include <stdio.h>

#define TABSPACE 8

int main() {
  int c;
  while ((c = getchar()) != EOF) {
    if (c == '\t') {
      for (int i = 0; i < TABSPACE; i++) {
        putchar(' ');
      }
    } else {
      putchar(c);
    }
  }
}