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- * @Id: curs_inopts.3x,v 1.64 2024/03/23 20:38:57 tom Exp @
+ * @Id: curs_inopts.3x,v 1.66 2024/04/13 22:20:29 tom Exp @
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-<H1 class="no-header">curs_inopts 3x 2024-03-23 ncurses 6.4 Library calls</H1>
+<H1 class="no-header">curs_inopts 3x 2024-04-13 ncurses 6.4 Library calls</H1>
<PRE>
<STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG> Library calls <STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG>
the later definition is the one used.
+</PRE><H2><a name="h2-HISTORY">HISTORY</a></H2><PRE>
+ Formerly, <EM>ncurses</EM> used <STRONG>nl</STRONG> and <STRONG>nonl</STRONG> to control the conversion of
+ newlines to carriage return/line feed on output as well as input.
+ X/Open Curses documents the use of these functions only for input.
+ This difference arose from converting the <EM>pcurses</EM> source (1986), which
+ used <STRONG>ioctl(2)</STRONG> calls and the <EM>sgttyb</EM> structure, to <EM>termios</EM> (the POSIX
+ terminal API). In the former, both input and output were controlled
+ via a single option <STRONG>CRMOD</STRONG>, while the latter separates these features.
+ Because that conversion interferes with output optimization, <EM>ncurses</EM>
+ 6.2 (2020) amended <STRONG>nl</STRONG> and <STRONG>nonl</STRONG> to eliminate their effect on output.
+
+
</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
<STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_getch.3x.html">curs_getch(3x)</A></STRONG>, <STRONG><A HREF="curs_initscr.3x.html">curs_initscr(3x)</A></STRONG>, <STRONG><A HREF="curs_util.3x.html">curs_util(3x)</A></STRONG>,
<STRONG><A HREF="define_key.3x.html">define_key(3x)</A></STRONG>, <STRONG>termios(3)</STRONG>
-ncurses 6.4 2024-03-23 <STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG>
+ncurses 6.4 2024-04-13 <STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG>
</PRE>
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<li><a href="#h2-NOTES">NOTES</a></li>
<li><a href="#h2-EXTENSIONS">EXTENSIONS</a></li>
<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
+<li><a href="#h2-HISTORY">HISTORY</a></li>
<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
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