From 569a5bd5c48d8969e644947ce3d89a97a0d56e5e Mon Sep 17 00:00:00 2001 From: zlg Date: Sat, 11 Aug 2012 14:55:41 -0400 Subject: Initial commit --- 1-17_over-80.c | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 1-17_over-80.c (limited to '1-17_over-80.c') 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 + +#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; +} -- cgit v1.2.3-54-g00ecf