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-rw-r--r--1-17_over-80.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/1-17_over-80.c b/1-17_over-80.c
new file mode 100644
index 0000000..dcf7058
--- /dev/null
+++ b/1-17_over-80.c
@@ -0,0 +1,62 @@
+#include <stdio.h>
+
+#define MINLENGTH 80
+
+/* Read as much as possible of a string and return its length. */
+int get_line(char s[]) {
+ int c, i;
+
+ for (i = 0; i < MINLENGTH - 1 && (c = getchar()) != EOF; ++i) {
+ s[i] = c;
+ }
+ if (c == '\n') {
+ s[i] = c;
+ ++i;
+ }
+ s[i] = '\0';
+ return i;
+}
+
+int main() {
+ // longline is used as a boolean that tells us if it's a line worth printing
+ int longline = 0;
+
+ // len is simply a character counter, while c is the character itself.
+ int len, c;
+ char buffer[MINLENGTH];
+
+ while ((c = getchar()) != EOF) {
+ buffer[len] = c;
+
+ /* When we meet the end of the line, we need to print the rest of the line,
+ but only if we're already in a long line. Otherwise, reset our state.
+ */
+ if (c == '\n') {
+
+ if (longline == 1 && len < MINLENGTH - 1) {
+ buffer[len + 1] = '\0';
+ printf("%-s", buffer);
+ }
+
+ len = 0;
+ longline = 0;
+ continue;
+ }
+
+ /* When the buffer has filled up, output its contents! */
+ if (len == MINLENGTH) {
+ buffer[len + 1] = '\0';
+ printf("%-s", buffer);
+ len = 0;
+ longline = 1;
+ continue;
+ }
+
+ /* If neither of the above cases are caught, increment our counter and fetch
+ more data.
+ */
+ ++len;
+ }
+
+ return 0;
+}