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Sync OpenBSD patchset 420:

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UTF-8 combined character fixes.

Thai can have treble combinations (1 x width=1 then 2 x width=0) so bump the
UTF-8 cell data size to 9 and alter the code to allow this.

Also break off the combining code into a separate function, handle any further
combining beyond the buffer size by replacing the character with _s, and when
redrawing the UTF-8 character don't assume the first part has just been
printed, redraw the entire line.
This commit is contained in:
Tiago Cunha
2009-10-23 17:13:10 +00:00
parent 97e02eae7d
commit c643ac4827
3 changed files with 76 additions and 39 deletions
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15
tty.c
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@@ -1,4 +1,4 @@
/* $Id: tty.c,v 1.156 2009-10-23 17:11:26 tcunha Exp $ */
/* $Id: tty.c,v 1.157 2009-10-23 17:13:10 tcunha Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -879,14 +879,13 @@ tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx)
void
tty_cmd_utf8character(struct tty *tty, const struct tty_ctx *ctx)
{
u_char *ptr = ctx->ptr;
size_t i;
struct window_pane *wp = ctx->wp;
for (i = 0; i < UTF8_SIZE; i++) {
if (ptr[i] == 0xff)
break;
tty_putc(tty, ptr[i]);
}
/*
* Cannot rely on not being a partial character, so just redraw the
* whole line.
*/
tty_draw_line(tty, wp->screen, ctx->ocy, wp->xoff, wp->yoff);
}
void