homework-00: Use getline and strtol instead to account for special cases

homework-00-warmup/main.c

@@ -1,11 +1,14 @@
+#include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
 
 const char * PROMPT = "ml' nob:";
 
 const char * INPUT_OKAY = "Qapla'";
+
 const char * OUT_OF_RANGE = "Qih mi'";
 const char * NOT_A_NUMBER = "Neh mi'";
+const char * INVALID_NUMBER = "bIjatlh 'e' yImev";
 
 const char * QUOTES[9] = {
 	"noH QapmeH wo' Qaw'lu'chugh yay chavbe'lu' 'ej wo' choqmeH may' DoHlu'chugh lujbe'lu'.",
@@ -20,18 +23,29 @@ const char * QUOTES[9] = {
 };
 
 int main() {
-	int input = 0;
+	char *buf = NULL;
+	size_t len = 0;
+	char* end;
 
 	printf("%s\n", PROMPT);
-	int result = scanf("%d", &input);
 
-	if(result != 1) {
+	ssize_t chars_read = getline(&buf, &len, stdin);
+
+	errno = 0;
+	long input = strtol(buf, &end, 10);
+
+	if(errno == ERANGE || chars_read == -1 || end == &buf[0]) {
 		printf("%s\n", NOT_A_NUMBER);
 		return EXIT_FAILURE;
 	}
 
+	if(*end != '\n') {
+		printf("%s\n", INVALID_NUMBER);
+		return EXIT_FAILURE;
+	}
+
 	if(input < 0 || input > 8) {
-		printf("%s %d\n", OUT_OF_RANGE, input);
+		printf("%s %ld\n", OUT_OF_RANGE, input);
 		return EXIT_FAILURE;
 	}
 

homework-00-warmup/test_data/0012_in.txt

@@ -0,0 +1 @@
+1.123

homework-00-warmup/test_data/0012_out.txt

@@ -0,0 +1,2 @@
+ml' nob:
+bIjatlh 'e' yImev

homework-00-warmup/test_data/0013_out.txt

@@ -0,0 +1,2 @@
+ml' nob:
+bIjatlh 'e' yImev

homework-00-warmup/test_data/0014_in.txt

@@ -0,0 +1 @@
+0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002

homework-00-warmup/test_data/0014_out.txt

@@ -0,0 +1,3 @@
+ml' nob:
+Qapla'
+Qu' buSHa'chugh SuvwI', batlhHa' vangchugh, qoj matlhHa'chugh, pagh ghaH SuvwI''e'.