/*
 * SHOUT
 * doing it like C, in two ways!
 *
 *  Created: August 2019
 *  Author: geoffreytowell
 */

#include <stdio.h>

#define LINE_LEN 24
#define UPPER_DIFF 'A'-'a'

/*****
 * Fairly C-like
 *****/
void shout()
{
    char line[LINE_LEN];
    char inputChar;
    int charsInput = 0;
    while ((inputChar=getchar()) != EOF)   // EOF is C-d at keyboard
    {
	if ('\n'==inputChar) // 10   ASCII==CR
	{
	    line[charsInput]='\0'; //indicate the end of a string  "null terminated"
	    printf("%d |%s|\n", charsInput, line);
	    charsInput=0;
	}
	else
	{
	    if (charsInput<LINE_LEN)
	    {
		if (inputChar>='a' && inputChar<='z') // ic inputChar a lower case letter
		{
		    inputChar += UPPER_DIFF;
		}
		line[charsInput++]=inputChar;
	    }
	}
    }
}

/*******
 * Aggressively C-like
 *******/
void shoutc()
{
    char line[LINE_LEN];
    char inputChar;
    char *l=line; // pointer to the same location as line
    int charCount=0;
    while ((inputChar=getchar()) != EOF) // EOF is C-d at keyboard
    {
	if ('\n'==inputChar) // 10   ASCII==CR
	{
	    *l='\0'; 
	    printf("%d |%s|\n", charCount, line);
	    l = line;
	    charCount=0;
	}
	else if (charCount<(LINE_LEN-1))
	{
	    if (inputChar>='a' && inputChar<='z')
	    {
		inputChar += UPPER_DIFF;
	    }
	    *(l++)= inputChar; // POINTER MATH!!!
	    charCount++;
	}
    }
}

int main(void)
{
    //shout
    shoutc();
}