Splitting into separate files.

term.h

@@ -0,0 +1,22 @@
+#ifndef TERM_H
+#define TERM_H
+
+#include "abuf.h"
+
+/* Terminal control/setup API */
+void enable_termraw(void);
+void disable_termraw(void);
+void setup_terminal(void);
+void display_clear(abuf *ab);
+
+/*
+ * get_winsz uses the TIOCGWINSZ to get the window size.
+ *
+ * there's a fallback way to do this, too, that involves moving the
+ * cursor down and to the left \x1b[999C\x1b[999B. I'm going to skip
+ * on this for now because it's bloaty and this works on OpenBSD and
+ * Linux, at least.
+ */
+int  get_winsz(int *rows, int *cols);
+
+#endif /* TERM_H */