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Revert "support REP (repeat) escape sequence"

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This reverts commit e8392b282c.

There is currently a bug in older ncurses versions (like on OpenBSD) where a
fix for a bug with REP is not backported yet. Most likely in tty/tty_update.c:

Noticed while using lynx (which uses ncurses/curses).
To reproduce using lynx: echo "Z0000000" | lynx -stdin

or using the program:

int
main(void)
{
	WINDOW *win;
	win = initscr();

	printw("Z0000000");

	refresh();

	sleep(5);

	return 0;
}

This prints "ZZZZZZZ" (incorrectly).
This commit is contained in:
Hiltjo Posthuma 2020-05-16 18:06:42 +02:00
parent e8392b282c
commit 475a0a36cb
2 changed files with 0 additions and 11 deletions
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10
st.c
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@ -129,7 +129,6 @@ typedef struct {
int charset; /* current charset */ int charset; /* current charset */
int icharset; /* selected charset for sequence */ int icharset; /* selected charset for sequence */
int *tabs; int *tabs;
Rune lastc; /* last printed char outside of sequence, 0 if control */
} Term; } Term;
/* CSI Escape sequence structs */ /* CSI Escape sequence structs */
@ -1649,12 +1648,6 @@ csihandle(void)
if (csiescseq.arg[0] == 0) if (csiescseq.arg[0] == 0)
ttywrite(vtiden, strlen(vtiden), 0); ttywrite(vtiden, strlen(vtiden), 0);
break; break;
case 'b': /* REP -- if last char is printable print it <n> more times */
DEFAULT(csiescseq.arg[0], 1);
if (term.lastc)
while (csiescseq.arg[0]-- > 0)
tputc(term.lastc);
break;
case 'C': /* CUF -- Cursor <n> Forward */ case 'C': /* CUF -- Cursor <n> Forward */
case 'a': /* HPR -- Cursor <n> Forward */ case 'a': /* HPR -- Cursor <n> Forward */
DEFAULT(csiescseq.arg[0], 1); DEFAULT(csiescseq.arg[0], 1);
@ -2380,8 +2373,6 @@ check_control_code:
/* /*
* control codes are not shown ever * control codes are not shown ever
*/ */
if (!term.esc)
term.lastc = 0;
return; return;
} else if (term.esc & ESC_START) { } else if (term.esc & ESC_START) {
if (term.esc & ESC_CSI) { if (term.esc & ESC_CSI) {
@ -2431,7 +2422,6 @@ check_control_code:
} }
tsetchar(u, &term.c.attr, term.c.x, term.c.y); tsetchar(u, &term.c.attr, term.c.x, term.c.y);
term.lastc = u;
if (width == 2) { if (width == 2) {
gp->mode |= ATTR_WIDE; gp->mode |= ATTR_WIDE;

1
st.info
View file

@ -184,7 +184,6 @@ st-mono| simpleterm monocolor,
# XTerm extensions # XTerm extensions
rmxx=\E[29m, rmxx=\E[29m,
smxx=\E[9m, smxx=\E[9m,
rep=%p1%c\E[%p2%{1}%-%db,
# tmux extensions, see TERMINFO EXTENSIONS in tmux(1) # tmux extensions, see TERMINFO EXTENSIONS in tmux(1)
Tc, Tc,
Ms=\E]52;%p1%s;%p2%s\007, Ms=\E]52;%p1%s;%p2%s\007,