SVr3 and early SVr4 curses implementations did not reject function keys;
the SVr4.0 documentation claimed that "special keys" (such as function
keys, "home" key, "clear" key, \fIetc\fR.) are "interpreted", without
giving details. It lied. In fact, the `character' value appended to the
string by those implementations was predictable but not useful
(being, in fact, the low-order eight bits of the key's KEY_ value).
SVr3 and early SVr4 curses implementations did not reject function keys;
the SVr4.0 documentation claimed that "special keys" (such as function
keys, "home" key, "clear" key, \fIetc\fR.) are "interpreted", without
giving details. It lied. In fact, the `character' value appended to the
string by those implementations was predictable but not useful
(being, in fact, the low-order eight bits of the key's KEY_ value).