ref: 9dec74d98d74e936569507a995e2401d324d1df5
dir: /doc/ietf/wrap_lines.c/
#include <string.h> #include <stdio.h> int main() { int comment = 0; int col = 0; char c0, c1; c0 = getchar(); while (!feof(stdin)) { c1 = getchar(); if (c1==9) c1 = 32; if (col < 71 || c0 == 10) { putchar(c0); } else { if (c1 == 10 || c1 == 13) { putchar(c0); } else { putchar ('\\'); /*printf ("%d %d %d", col, c0, c1);*/ putchar (10); putchar (c0); col=0; } } col++; if (c0 == 10) col=0; c0 = c1; } }