@code{C-s} and @kbd{C-q} for flow control. Therefore, the choice of
@kbd{C-s} and @kbd{C-q} as command characters was uncontroversial.
XEmacs, for economy of keystrokes and portability, used nearly all the
-@sc{ASCII} control characters, with mnemonic meanings when possible;
+@sc{ascii} control characters, with mnemonic meanings when possible;
thus, @kbd{C-s} for search and @kbd{C-q} for quote.
Later, some terminals were introduced which required these characters