On Sun, Jan 09, 2011 at 03:34:02PM +0100, Werner LEMBERG wrote:
> Colin Watson wrote:
> > Given that backspacing over half a character is never a particularly
> > sensible thing for a pager to do, I would suggest that we should
> > assume that pagers will backspace over a character at a time, as
> > less seems to do, and emit a number of backspaces corresponding to
> > the number of characters. Does this make sense, or am I missing
> > something?
>
> I second your analysis. Can you provide a patch?
How about the following?
2011-01-09 Colin Watson <cjwat...@debian.org>
* src/devices/grotty/tty.cpp (tty_printer::make_underline): Only
emit a single backspace in no-SGR mode. less (at least) backspaces
over a character at a time.
(tty_printer::make_bold): Likewise.
=== modified file 'src/devices/grotty/tty.cpp'
--- src/devices/grotty/tty.cpp 2010-12-13 17:42:28 +0000
+++ src/devices/grotty/tty.cpp 2011-01-09 15:17:24 +0000
@@ -311,11 +311,8 @@ void tty_printer::make_underline(int w)
if (!w)
warning("can't underline zero-width character");
else {
- int n = w / font::hor;
- for (int i = 0; i < n; i++)
- putchar('_');
- for (int j = 0; j < n; j++)
- putchar('\b');
+ putchar('_');
+ putchar('\b');
}
}
else {
@@ -337,10 +334,8 @@ void tty_printer::make_bold(output_chara
if (!w)
warning("can't print zero-width character in bold");
else {
- int n = w / font::hor;
put_char(c);
- for (int i = 0; i < n; i++)
- putchar('\b');
+ putchar('\b');
}
}
else {
Thanks,
--
Colin Watson [cjwat...@debian.org]
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