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/*
** WORDWRAP.C - Simple CRT word wrap demonstration routine
**
** public domain by Robert Morgan
*/
#include <stdio.h>
#include <conio.h>
#include <string.h>
int get_ln(int rmargin);
void clr_eol(const int curpos, const int pos);
void main()
{
printf("Enter text. Press CTRL-A to quit.\n");
while((get_ln(75)) != 0) /* Change 75 to whatever number you */
; /* wish to be the right margin */
}
void clr_eol(const int curpos, const int pos)
{
int distance;
int count;
distance = curpos - pos;
for (count = 1; count <= distance; count++)
putch('\b');
for (count = 1; count <= distance; count++)
putch(' ');
}
int get_ln(int rmargin)
{
char word[80];
static int wordpos = 0;
static int curpos = 1;
static int ch = 0;
static int pos = 0;
word[wordpos] = '\0';
while (ch != 1)
{
ch = getch();
switch(ch)
{
case 1:
return(0);
case ' ':
pos = curpos;
putch(' ');
curpos++;
wordpos = 0;
word[0] = '\0';
break;
case '\b':
putch('\b');
curpos--;
if (wordpos > 0)
wordpos--;
break;
case '\r':
puts("\r");
wordpos = 0;
word[wordpos] = '\0';
curpos = 1;
pos = 0;
break;
default:
putch(ch);
word[wordpos] = (char)ch;
curpos++;
wordpos++;
break;
}
if(curpos == rmargin)
{
word[wordpos] = '\0';
clr_eol(curpos,pos);
wordpos = 0;
curpos = strlen(word);
pos = 0;
puts("\r");
printf("%s",word);
}
}
return -1;
}
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