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@slayerlab
Last active October 23, 2018 19:34
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ANSI C K&R Exercise: Print [o]ne [w]ord per [l]ine – pretty easy.
/* *
* From: C Answer Book
* Clovis L. Tondo
* Scott E. Gimpel
* ISBN: 7-302-02728-5
* */
#include <stdio.h>
#define IN 1 /* inside word */
#define OUT 0 /* outside word */
/* print input one word per line */
main()
{
int c, state;
state = OUT;
while((c = getchar()) != EOF) {
if (c == ' ' || c == '\n' || c == '\t') {
if (state == OUT) {
putchar('\n'); /* finish the word */
state = OUT;
}
}
} else if (state == OUT) {
state = IN; /* begining of word */
putchar(c);
} else {
putchar(c); /* inside the word */
}
}
/* *
* Exercise 1-12. Write a program that prints its input one word per line.
* */
#include <stdio.h>
#define IS_UPPER(N) ((N) >= 'A' && (N) <= 'Z') /* 'A'==65 && 'Z'==90 */
#define IS_LOWER(N) ((N) >= 'a' && (N) <= 'z') /* 'a'==97 && 'z'==122 */
#define IS_ALPHA(N) (IS_LOWER(N) || IS_UPPER(N)) /* [A-Za-z] x*/
#define OUT 0
#define IN 1
int main(void)
{
int c = EOF, state = OUT;
while ((c = getchar()) != EOF) {
if (IS_ALPHA(c)) {
state = IN;
putchar(c);
}
else if (state == IN) {
state = OUT;
putchar('\n');
}
}
return 0;
}
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