prompt.c

#include"common.h"
#include<stdio.h>
#include<stddef.h>

void prompt_( char *prompt, char *dest, size_t count )
{

	fprintf(stderr, "%s ", prompt);

	char ch;
	while(count-- > 0 && (ch = getchar()) != '\n')
		{
			*(dest++) = ch;
		};

	ungetc(ch, stdin);
	while((ch = getchar()) != '\n');

}

void prompt( char *original,
             char *query,
             char *replacement )
{
	prompt_("What is the original string?", original, 80);
	prompt_("What is the query string?", query, 10);
	prompt_("What is the replacement string?", replacement, 10);
}