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bin/ksh: series of patches which fixes wrong terminal width and UTF-8
bin/ksh: series of patches which fixes wrong terminal width and UTF-8
bin/ksh: series of patches which fixes wrong terminal width and UTF-8
bin/ksh: series of patches which fixes wrong terminal width and UTF-8
On 2026/09/09 12:55, Kirill A. Korinsky wrote:
> On Wed, 08 Jul 2026 11:41:07 +0200,
> Stuart Henderson <stu@spacehopper.org> wrote:
> >
> > On 2026/07/07 22:42, Kirill A. Korinsky wrote:
> > > sorry to attached pathces, and not inlined, I think it makes it review
> > > simpler.
> > >
> > > I use that pathces for last half year in emacs mode and happy with this, but
> > > I think we should fix that bugs and commit it.
> > >
> > > It should be applied as sequence.
> > >
> > > Anyone willing to test it? Ok it?
> >
> > I'm running this on a few machines now. It's a big improvement so far.
> >
>
> I still would like to go this series in.
Me too.
> Here it is as one diff with regression tests.
>
> I use it for months, and haven't discovered any issues.
>
> This patch fixes terminal resizes which leaves emacs and vi mode using a
> stale width, causing premature scrolling and incorrect cursor placement;
> UTF-8 input at the window edge also produces broken characters and misplaced
> indicators; in vi mode, multibyte input can overrun the window buffers.
>
> Anyone willing to ok it?
ok sthen, FWIW
> Index: bin/ksh/edit.c
> ===================================================================
> RCS file: /home/cvs/src/bin/ksh/edit.c,v
> diff -u -p -r1.72 edit.c
> --- bin/ksh/edit.c 22 May 2026 18:11:08 -0000 1.72
> +++ bin/ksh/edit.c 9 Sep 2026 10:44:49 -0000
> @@ -26,7 +26,8 @@ X_chars edchars;
>
> static void x_sigwinch(int);
> volatile sig_atomic_t got_sigwinch;
> -static void check_sigwinch(void);
> +void check_sigwinch(void);
> +void (*x_resize_cb)(void); /* callback for resize during edit */
>
> static int x_file_glob(int, const char *, int, char ***, int);
> static char *x_tilde_expand(const char *);
> @@ -64,7 +65,7 @@ x_sigwinch(int sig)
> got_sigwinch = 1;
> }
>
> -static void
> +void
> check_sigwinch(void)
> {
> if (got_sigwinch) {
> @@ -81,11 +82,16 @@ check_sigwinch(void)
> * see the change cause the environ doesn't change.
> */
> if (ws.ws_col) {
> + int old_cols = x_cols;
> +
> x_cols = ws.ws_col < MIN_COLS ? MIN_COLS :
> ws.ws_col;
>
> if ((vp = typeset("COLUMNS", 0, 0, 0, 0)))
> setint(vp, (int64_t) ws.ws_col);
> +
> + if (x_cols != old_cols && x_resize_cb)
> + (*x_resize_cb)();
> }
> if (ws.ws_row && (vp = typeset("LINES", 0, 0, 0, 0)))
> setint(vp, (int64_t) ws.ws_row);
> @@ -126,12 +132,14 @@ x_getc(void)
> char c;
> int n;
>
> - while ((n = blocking_read(STDIN_FILENO, &c, 1)) < 0 && errno == EINTR)
> + while ((n = blocking_read(STDIN_FILENO, &c, 1)) < 0 && errno == EINTR) {
> + check_sigwinch();
> if (trap) {
> x_mode(false);
> runtraps(0);
> x_mode(true);
> }
> + }
> if (n != 1)
> return -1;
> return (int) (unsigned char) c;
> Index: bin/ksh/edit.h
> ===================================================================
> RCS file: /home/cvs/src/bin/ksh/edit.h,v
> diff -u -p -r1.14 edit.h
> --- bin/ksh/edit.h 22 May 2026 18:11:08 -0000 1.14
> +++ bin/ksh/edit.h 9 Sep 2026 10:44:49 -0000
> @@ -39,6 +39,8 @@ extern X_chars edchars;
> #define XCF_COMMAND_FILE (XCF_COMMAND|XCF_FILE)
>
> /* edit.c */
> +void check_sigwinch(void);
> +extern void (*x_resize_cb)(void);
> int x_getc(void);
> void x_flush(void);
> int x_putc(int);
> Index: bin/ksh/emacs.c
> ===================================================================
> RCS file: /home/cvs/src/bin/ksh/emacs.c,v
> diff -u -p -r1.92 emacs.c
> --- bin/ksh/emacs.c 22 May 2026 18:11:08 -0000 1.92
> +++ bin/ksh/emacs.c 9 Sep 2026 10:44:49 -0000
> @@ -105,6 +105,7 @@ static int xlp_valid;
> /* end from 4.9 edit.h } */
> static int x_tty; /* are we on a tty? */
> static int x_bind_quiet; /* be quiet when binding keys */
> +static void x_emacs_resize(void);
> static int (*x_last_command)(int);
>
> static char **x_histp; /* history position */
> @@ -129,6 +130,7 @@ static int x_size_str(char *);
> static int x_size(int);
> static void x_zots(char *);
> static void x_zotc(int);
> +static void x_zotcp(char *);
> static void x_load_hist(char **);
> static int x_search(char *, int, int);
> static int x_match(char *, char *);
> @@ -286,6 +288,9 @@ x_emacs(char *buf, size_t len)
> xmp = NULL;
> x_histp = histptr + 1;
>
> + x_resize_cb = NULL;
> + check_sigwinch();
> + x_resize_cb = x_emacs_resize;
> xx_cols = x_cols;
> x_col = promptlen(prompt, &p);
> prompt_skip = p - prompt;
> @@ -316,8 +321,11 @@ x_emacs(char *buf, size_t len)
> x_last_command = NULL;
> while (1) {
> x_flush();
> - if ((at = x_e_getu8(line, at)) < 0)
> + if ((at = x_e_getu8(line, at)) < 0) {
> + x_resize_cb = NULL;
> return 0;
> + }
> +
> ntries++;
>
> if (x_arg == -1) {
> @@ -378,6 +386,7 @@ x_emacs(char *buf, size_t len)
> x_last_command = NULL;
> break;
> case KEOL:
> + x_resize_cb = NULL;
> ret = xep - xbuf;
> return (ret);
> break;
> @@ -635,16 +644,17 @@ x_fword(void)
> static void
> x_goto(char *cp)
> {
> - if (cp < xbp || cp >= (xbp + x_displen)) {
> + x_lastcp();
> + if (cp < xbp || cp > xlp) {
> /* we are heading off screen */
> xcp = cp;
> x_adjust();
> } else if (cp < xcp) { /* move back */
> while (cp < xcp)
> - x_bs((unsigned char)*--xcp);
> + x_bs(*--xcp);
> } else if (cp > xcp) { /* move forward */
> while (cp > xcp)
> - x_zotc((unsigned char)*xcp++);
> + x_zotcp(xcp++);
> }
> }
>
> @@ -663,7 +673,7 @@ x_size_str(char *cp)
> {
> int size = 0;
> while (*cp)
> - size += x_size(*cp++);
> + size += x_size((unsigned char)*cp++);
> return size;
> }
>
> @@ -691,7 +701,7 @@ x_zots(char *str)
> }
> x_lastcp();
> while (*str && str < xlp && adj == x_adj_done)
> - x_zotc(*str++);
> + x_zotcp(str++);
> }
>
> static void
> @@ -707,6 +717,39 @@ x_zotc(int c)
> x_e_putc(c);
> }
>
> +static void
> +x_zotcp(char *p)
> +{
> + unsigned char uc = (unsigned char)*p;
> +
> + if (uc == '\t') {
> + /* Kludge, tabs are always four spaces. */
> + x_e_puts(" ");
> + return;
> + }
> + if (isu8cont(uc)) {
> + if (x_col <= xx_cols) {
> + x_putc(uc);
> + }
> + if (x_adj_ok && !isu8cont((unsigned char)p[1]) &&
> + (x_col < 0 || x_col >= (xx_cols - 2)))
> + x_adjust();
> + return;
> + }
> + if (iscntrl(uc)) {
> + x_e_putc('^');
> + x_e_putc(UNCTRL(uc));
> + } else {
> + if (x_col < xx_cols) {
> + x_putc(uc);
> + x_col++;
> + }
> + if (x_adj_ok && !isu8cont((unsigned char)p[1]) &&
> + (x_col < 0 || x_col >= (xx_cols - 2)))
> + x_adjust();
> + }
> +}
> +
> static int
> x_mv_back(int c)
> {
> @@ -1026,7 +1069,7 @@ x_clear_screen(int c)
> static void
> x_redraw(int limit)
> {
> - int i, j, truncate = 0;
> + int i, j, truncate = 0, dcols;
> char *cp;
>
> x_adj_ok = 0;
> @@ -1068,10 +1111,12 @@ x_redraw(int limit)
> if (xbp != xbuf || xep > xlp)
> limit = xx_cols;
> if (limit >= 0) {
> - if (xep > xlp)
> - i = 0; /* we fill the line */
> - else
> - i = limit - (xlp - xbp);
> + dcols = 0;
> + for (cp = xbp; cp < xlp; cp++)
> + dcols += x_size((unsigned char)*cp);
> + i = limit - dcols;
> + if (i < 0)
> + i = 0;
>
> for (j = 0; j < i && x_col < (xx_cols - 2); j++)
> x_e_putc(' ');
> @@ -1128,8 +1173,8 @@ x_transpose(int c)
> */
> x_bs(xcp[-1]);
> x_bs(xcp[-2]);
> - x_zotc(xcp[-1]);
> - x_zotc(xcp[-2]);
> + x_zotcp(&xcp[-1]);
> + x_zotcp(&xcp[-2]);
> tmp = xcp[-1];
> xcp[-1] = xcp[-2];
> xcp[-2] = tmp;
> @@ -1138,8 +1183,8 @@ x_transpose(int c)
> * cursor, move cursor position along one.
> */
> x_bs(xcp[-1]);
> - x_zotc(xcp[0]);
> - x_zotc(xcp[-1]);
> + x_zotcp(&xcp[0]);
> + x_zotcp(&xcp[-1]);
> tmp = xcp[-1];
> xcp[-1] = xcp[0];
> xcp[0] = tmp;
> @@ -1802,12 +1847,22 @@ do_complete(int flags, /* XCF_{COMMAND,F
> static void
> x_adjust(void)
> {
> + char *cp;
> + int col;
> +
> x_adj_done++; /* flag the fact that we were called. */
> /*
> * we had a problem if the prompt length > xx_cols / 2
> */
> - if ((xbp = xcp - (x_displen / 2)) < xbuf)
> - xbp = xbuf;
> + col = x_displen / 2;
> + cp = xcp;
> + while (cp > xbuf && col > 0) {
> + cp--;
> + while (cp > xbuf && isu8cont(*cp))
> + cp--;
> + col -= x_size((unsigned char)*cp);
> + }
> + xbp = cp;
> xlp_valid = false;
> x_redraw(xx_cols);
> x_flush();
> @@ -2161,9 +2216,58 @@ x_lastcp(void)
> for (i = 0, rcp = xbp; rcp < xep && i < x_displen; rcp++)
> i += x_size((unsigned char)*rcp);
> xlp = rcp;
> + while (xlp < xep && isu8cont(*xlp))
> + xlp++;
> }
> xlp_valid = true;
> return (xlp);
> +}
> +
> +static void
> +x_emacs_resize(void)
> +{
> + int cr_done = 0, cleared = 0;
> +
> +#ifndef SMALL
> + if (cur_term != NULL) {
> + if (carriage_return != NULL &&
> + tputs(carriage_return, 1, x_putc) != ERR)
> + cr_done = 1;
> + if (clr_eos != NULL &&
> + tputs(clr_eos, 1, x_putc) != ERR)
> + cleared = 1;
> + }
> +#endif
> + if (!cr_done)
> + x_putc('\r');
> + if (!cleared) {
> + x_putc('\033');
> + x_putc('[');
> + x_putc('J');
> + }
> +
> + xx_cols = x_cols;
> + x_col = promptlen(prompt, NULL);
> + if (x_col > xx_cols)
> + x_col = x_col - (x_col / xx_cols) * xx_cols;
> + x_displen = xx_cols - 2 - x_col;
> + if (x_displen < 1) {
> + x_col = 0;
> + x_displen = xx_cols - 2;
> + prompt_redraw = 0;
> + } else {
> + xbp = xbuf;
> + xlp_valid = false;
> + if (xcp <= x_lastcp()) {
> + x_redraw(0);
> + x_flush();
> + return;
> + }
> + }
> +
> + x_col = 0;
> + x_displen = xx_cols - 2;
> + x_adjust();
> }
>
> #endif /* EMACS */
> Index: bin/ksh/vi.c
> ===================================================================
> RCS file: /home/cvs/src/bin/ksh/vi.c,v
> diff -u -p -r1.71 vi.c
> --- bin/ksh/vi.c 15 Aug 2026 11:54:18 -0000 1.71
> +++ bin/ksh/vi.c 9 Sep 2026 10:44:49 -0000
> @@ -24,6 +24,7 @@
>
> #undef CTRL
> #define CTRL(x) ((x) & 0x1F) /* ASCII */
> +#define UTF8_MAXBYTES 4
>
> struct edstate {
> char *cbuf; /* main buffer to build the command line */
> @@ -75,6 +76,8 @@ static void vi_error(void);
> static void vi_macro_reset(void);
> static int x_vi_putbuf(const char *, size_t);
> static int isu8cont(unsigned char);
> +static void x_vi_resize(void);
> +static void calc_winsize(void);
>
> #define C_ 0x1 /* a valid command that isn't a M_, E_, U_ */
> #define M_ 0x2 /* movement command (h, l, etc.) */
> @@ -200,6 +203,9 @@ x_vi(char *buf, size_t len)
> {
> int c;
>
> + x_resize_cb = NULL;
> + check_sigwinch();
> + x_resize_cb = x_vi_resize;
> vi_reset(buf, len > LINE ? LINE : len);
> vi_pprompt(1);
> x_flush();
> @@ -242,6 +248,7 @@ x_vi(char *buf, size_t len)
> x_flush();
> }
>
> + x_resize_cb = NULL;
> x_putc('\r'); x_putc('\n'); x_flush();
>
> if (c == -1 || len <= (size_t)es->linelen)
> @@ -1363,7 +1370,7 @@ static int prompt_trunc; /* how much of
> static int prompt_skip; /* how much of prompt to skip */
> static int winwidth; /* available column positions */
> static char *wbuf[2]; /* current & previous window buffer */
> -static int wbuf_len; /* length of window buffers (x_cols-3)*/
> +static int wbuf_len; /* length of window buffers */
> static int win; /* number of window buffer in use */
> static char morec; /* more character at right of window */
> static char holdbuf[LINE]; /* place to hold last edit buffer */
> @@ -1423,8 +1430,6 @@ free_edstate(struct edstate *old)
> static void
> edit_reset(char *buf, size_t len)
> {
> - const char *p;
> -
> es = &ebuf;
> es->cbuf = buf;
> es->cbufsize = len;
> @@ -1435,6 +1440,18 @@ edit_reset(char *buf, size_t len)
> es->cursor = undo->cursor = 0;
> es->winleft = undo->winleft = 0;
>
> + calc_winsize();
> + win = 0;
> + morec = ' ';
> + holdlen = 0;
> +}
> +
> +static void
> +calc_winsize(void)
> +{
> + const char *p;
> + int newlen;
> +
> cur_col = pwidth = promptlen(prompt, &p);
> prompt_skip = p - prompt;
> if (pwidth > x_cols - 3 - MIN_EDIT_SPACE) {
> @@ -1443,17 +1460,15 @@ edit_reset(char *buf, size_t len)
> pwidth -= prompt_trunc;
> } else
> prompt_trunc = 0;
> - if (!wbuf_len || wbuf_len != x_cols - 3) {
> - wbuf_len = x_cols - 3;
> + newlen = (x_cols - 3) * UTF8_MAXBYTES;
> + if (!wbuf_len || wbuf_len != newlen) {
> + wbuf_len = newlen;
> wbuf[0] = aresize(wbuf[0], wbuf_len, APERM);
> wbuf[1] = aresize(wbuf[1], wbuf_len, APERM);
> }
> (void) memset(wbuf[0], ' ', wbuf_len);
> (void) memset(wbuf[1], ' ', wbuf_len);
> winwidth = x_cols - pwidth - 3;
> - win = 0;
> - morec = ' ';
> - holdlen = 0;
> }
>
> /*
> @@ -1870,6 +1885,7 @@ display(char *wb1, char *wb2, int leftsi
> int ncol; /* display column of the cursor */
> int cnt; /* remaining display columns to fill */
> int moreright;
> + int trailu8;
> char mc; /* new "more character" at the right of window */
> unsigned char ch;
>
> @@ -1881,8 +1897,11 @@ display(char *wb1, char *wb2, int leftsi
> ncol = col = 0;
> cur = es->winleft;
> moreright = 0;
> + trailu8 = 0;
> twb1 = wb1;
> - while (col < winwidth && cur < es->linelen) {
> + while (cur < es->linelen &&
> + (col < winwidth ||
> + (col == winwidth && isu8cont(es->cbuf[cur])))) {
> if (cur == es->cursor && leftside)
> ncol = col + pwidth;
> if ((ch = es->cbuf[cur]) == '\t') {
> @@ -1898,7 +1917,8 @@ display(char *wb1, char *wb2, int leftsi
> }
> ch &= 0x7f;
> }
> - if (col < winwidth) {
> + if (col < winwidth ||
> + (col == winwidth && isu8cont(ch))) {
> if (ch < ' ' || ch == 0x7f) {
> *twb1++ = '^';
> if (++col < winwidth) {
> @@ -1906,6 +1926,8 @@ display(char *wb1, char *wb2, int leftsi
> col++;
> }
> } else {
> + if (col == winwidth && isu8cont(ch))
> + trailu8 = 1;
> *twb1++ = ch;
> if (col == 0 || !isu8cont(ch))
> col++;
> @@ -1998,8 +2020,10 @@ display(char *wb1, char *wb2, int leftsi
> mc = '>';
> else
> mc = ' ';
> - if (mc != morec) {
> - ed_mov_opt(pwidth + winwidth + 1, wb1);
> + if (mc != morec || trailu8) {
> + ed_mov_opt(pwidth + winwidth, wb1);
> + x_putc(' ');
> + cur_col++;
> x_putc(mc);
> cur_col++;
> morec = mc;
> @@ -2302,5 +2326,43 @@ static int
> isu8cont(unsigned char c)
> {
> return !Flag(FVISHOW8) && (c & (0x80 | 0x40)) == 0x80;
> +}
> +
> +static void
> +x_vi_resize(void)
> +{
> + int cur = 0, col = 0;
> + int cr_done = 0, cleared = 0;
> +
> +#ifndef SMALL
> + if (cur_term != NULL) {
> + if (carriage_return != NULL &&
> + tputs(carriage_return, 1, x_putc) != ERR)
> + cr_done = 1;
> + if (clr_eos != NULL &&
> + tputs(clr_eos, 1, x_putc) != ERR)
> + cleared = 1;
> + }
> +#endif
> + if (!cr_done)
> + x_putc('\r');
> + if (!cleared) {
> + x_putc('\033');
> + x_putc('[');
> + x_putc('J');
> + }
> +
> + calc_winsize();
> +
> + while (cur < es->linelen)
> + col = newcol((unsigned char) es->cbuf[cur++], col);
> + if (col <= winwidth)
> + es->winleft = 0;
> + else if (outofwin())
> + rewindow();
> +
> + redraw_line(0, 0);
> + refresh_line(insert != 0);
> + x_flush();
> }
> #endif /* VI */
> Index: regress/bin/ksh/edit/edit.c
> ===================================================================
> RCS file: /home/cvs/src/regress/bin/ksh/edit/edit.c,v
> diff -u -p -r1.8 edit.c
> --- regress/bin/ksh/edit/edit.c 10 Jul 2021 07:10:31 -0000 1.8
> +++ regress/bin/ksh/edit/edit.c 9 Sep 2026 10:44:49 -0000
> @@ -16,6 +16,7 @@
> */
>
> #include <sys/wait.h>
> +#include <sys/ioctl.h>
>
> #include <err.h>
> #include <errno.h>
> @@ -49,6 +50,7 @@ main(int argc, char *argv[])
> ssize_t n;
> size_t nin, nprompt, nread, nwrite;
> int c, nready, ptyfd, readprompt, ret, status, timeout;
> + int pending_resize, pending_cols, pending_quiet, pending_post;
>
> while ((c = getopt(argc, argv, "p:")) != -1) {
> switch (c) {
> @@ -96,14 +98,20 @@ main(int argc, char *argv[])
> }
>
> nprompt = nread = nwrite = ret = 0;
> + pending_resize = pending_cols = pending_quiet = pending_post = 0;
> readprompt = 1;
> while (!gotsig) {
> pfd.fd = ptyfd;
> - if (!readprompt && nwrite < nin)
> + if (pending_resize || pending_post) {
> + pfd.events = POLLIN;
> + timeout = WRTIM;
> + } else if (!readprompt && nwrite < nin) {
> pfd.events = POLLOUT;
> - else
> + timeout = WRTIM;
> + } else {
> pfd.events = POLLIN;
> - timeout = readprompt ? PRTIM : WRTIM;
> + timeout = readprompt ? PRTIM : WRTIM;
> + }
> nready = poll(&pfd, 1, timeout);
> if (nready == -1) {
> if (errno == EINTR)
> @@ -111,6 +119,22 @@ main(int argc, char *argv[])
> err(1, "poll");
> }
> if (nready == 0) {
> + if (pending_resize) {
> + if (++pending_quiet >= 2) {
> + ws.ws_col = pending_cols;
> + if (ioctl(ptyfd, TIOCSWINSZ, &ws) == -1)
> + err(1, "ioctl TIOCSWINSZ");
> + kill(pid, SIGWINCH);
> + pending_resize = pending_cols = 0;
> + pending_quiet = 0;
> + pending_post = 1;
> + }
> + continue;
> + }
> + if (pending_post) {
> + pending_post = 0;
> + continue;
> + }
> if (timeout == PRTIM) {
> warnx("timeout waiting from prompt");
> ret = 1;
> @@ -136,6 +160,28 @@ main(int argc, char *argv[])
> readprompt = 0;
> }
> } else if (pfd.revents & POLLOUT) {
> + if (in[nwrite] == '\0' && nwrite + 3 < nin &&
> + in[nwrite + 1] == 'R' &&
> + in[nwrite + 2] == 'S' &&
> + in[nwrite + 3] >= '0' && in[nwrite + 3] <= '9') {
> + size_t i = nwrite + 3;
> + int cols = 0, nd = 0;
> +
> + while (i < nin && nd < 3 &&
> + in[i] >= '0' && in[i] <= '9') {
> + cols = cols * 10 + (in[i] - '0');
> + i++;
> + nd++;
> + }
> + if (nd > 0 && (i == nin ||
> + in[i] < '0' || in[i] > '9') &&
> + cols > 0) {
> + pending_resize = 1;
> + pending_cols = cols;
> + nwrite = i;
> + continue;
> + }
> + }
> if (strchr(linefeed, in[nwrite]) != NULL)
> readprompt = 1;
>
> @@ -143,6 +189,8 @@ main(int argc, char *argv[])
> if (n == -1)
> err(1, "write");
> nwrite += n;
> + if (pending_resize)
> + pending_quiet = 0;
> }
> }
> close(ptyfd);
> Index: regress/bin/ksh/edit/emacs.sh
> ===================================================================
> RCS file: /home/cvs/src/regress/bin/ksh/edit/emacs.sh,v
> diff -u -p -r1.15 emacs.sh
> --- regress/bin/ksh/edit/emacs.sh 2 Sep 2021 07:14:15 -0000 1.15
> +++ regress/bin/ksh/edit/emacs.sh 9 Sep 2026 10:44:49 -0000
> @@ -52,6 +52,62 @@ testseq "z\0002\0363\0277\0277\0277" " #
> testseq "z\0002\0364\0200\0200\0200" " # z\b\0364\0200\0200\0200z\b"
> testseq "z\0002\0364\0217\0277\0277" " # z\b\0364\0217\0277\0277z\b"
>
> +# ASCII resize: cols=1/11/12
> +testseq "aaaaaaaaaabbbbbbbbbb\0001\000RS1" \
> + " # aaaaaaaaaabbbbbbbbbb\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\r\033[J\r # aaaaaaa>\b\b\b\b\b\b\b\b"
> +testseq "aaaaaaaaaabbbbbbbbbb\003310\0002\000RS11" \
> + " # aaaaaaaaaabbbbbbbbbb\b\b\b\b\b\b\b\b\b\b\r\033[J\raaaaabbbbb*\b\b\b\b\b\b"
> +testseq "aaaaaaaaaabbbbbbbbbb\000RS12" \
> + " # aaaaaaaaaabbbbbbbbbb\r\033[J\rbbbbb <\b\b\b\b\b\b"
> +
> +# ASCII resize: cols=13, cursor -1/0/+1
> +testseq "aaaaaaaaaabbbbbbbbbb\003313\0002\000RS13" \
> + " # aaaaaaaaaabbbbbbbbbb\b\b\b\b\b\b\b\b\b\b\b\b\b\r\033[J\r # aaaaaaaa>\b\b"
> +testseq "aaaaaaaaaabbbbbbbbbb\003312\0002\000RS13" \
> + " # aaaaaaaaaabbbbbbbbbb\b\b\b\b\b\b\b\b\b\b\b\b\r\033[J\r # aaaaaaaa>\b"
> +testseq "aaaaaaaaaabbbbbbbbbb\003311\0002\000RS13" \
> + " # aaaaaaaaaabbbbbbbbbb\b\b\b\b\b\b\b\b\b\b\b\r\033[J\raaaaaabbbbb*\b\b\b\b\b\b\b"
> +
> +# ASCII resize: cols=79/80/81
> +testseq "aaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccc\0001\000RS79" \
> + " # aaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccc\rbbbbbbbbbbbbccccccccccccccccccccccccc <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\r # aaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccc \b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\r\033[J\r # aaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbcccccccccccccccccccccccc>\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"
> +testseq "aaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccc\0001\000RS80" \
> + " # aaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccc\rbbbbbbbbbbbbccccccccccccccccccccccccc <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\r # aaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccc \b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"
> +testseq "aaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccc\0001\000RS81" \
> + " # aaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccc\rbbbbbbbbbbbbccccccccccccccccccccccccc <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\r # aaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccc \b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\r\033[J\r # aaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccc \b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"
> +
> +# ASCII window indicator at left edge
> +testseq "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb" \
> + " # aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\rbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"
> +
> +# UTF-8 window indicator at left edge
> +testseq "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\0303\0266bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb" \
> + " # aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\0303\0266bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\r\0303\0266bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"
> +
> +# ASCII redraw at right edge
> +PS1='012345678901234567890123456789012345678901234567890123456789'
> +testseq "#aaaaaaaaaaaaaaaaab\0033#" "012345678901234567890123456789012345678901234567890123456789#aaaaaaaaaaaaaaaaa\raaaaaaaaa <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\bb\r012345678901234567890123456789012345678901234567890123456789aaaaaaaaaaaaaaaaab \b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"
> +
> +# UTF-8 redraw at right edge
> +testseq "#aaaaaaaaaaaaaaaaa\0303\0266\0033#" "012345678901234567890123456789012345678901234567890123456789#aaaaaaaaaaaaaaaaa\raaaaaaaaa <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\0303\0266\r012345678901234567890123456789012345678901234567890123456789aaaaaaaaaaaaaaaaa\0303\0266 \b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"
> +PS1=' # '
> +
> +# ASCII window indicator at right edge
> +testseq "\003342ab\003397b\0001" \
> + " # aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\raaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\rbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\bbbbbbbbbbbbbbbbbbbbbbbbb\r # aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb>\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"
> +
> +# UTF-8 window indicator at right edge
> +testseq "\003342a\0303\0266\003397b\0001" \
> + " # aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\0303\0266bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\raaaa\0303\0266bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\rbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\bbbbbbbbbbbbbbbbbbbbbbbbb\r # aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\0303\0266bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb>\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"
> +
> +# ASCII window indicator on both sides
> +testseq "\003342ab\003397b\0001\003379\0006" \
> + " # aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\raaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\rbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\bbbbbbbbbbbbbbbbbbbbbbbbb\r # aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb>\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\rbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb*\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"
> +
> +# UTF-8 window indicator on both sides
> +testseq "\003342a\0303\0266\003397b\0001\003379\0006" \
> + " # aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\0303\0266bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\raaaa\0303\0266bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\rbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\bbbbbbbbbbbbbbbbbbbbbbbbb\r # aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\0303\0266bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb>\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\ra\0303\0266bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb*\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"
> +
> # insertion of incomplete UTF-8
> testseq "z\0002\0302\0006" " # z\b\0302z\bz"
> testseq "z\0002\0377\0006" " # z\b\0377z\bz"
> Index: regress/bin/ksh/edit/vi.sh
> ===================================================================
> RCS file: /home/cvs/src/regress/bin/ksh/edit/vi.sh,v
> diff -u -p -r1.14 vi.sh
> --- regress/bin/ksh/edit/vi.sh 4 Apr 2026 09:33:18 -0000 1.14
> +++ regress/bin/ksh/edit/vi.sh 9 Sep 2026 10:44:49 -0000
> @@ -233,3 +233,59 @@ testseq "(x)\00330%hrc" " # (x)\b\b\b(x\
>
> # ^R: Redraw.
> testseq "test\0033h\0022" " # test\b\b\r\r\n # test\b\b"
> +
> +# ASCII resize: cols=1/11/12
> +testseq "aaaaaaaaaabbbbbbbbbb\0033hhhhhhhhhhhhhhhhhhh\000RS1" \
> + " # aaaaaaaaaabbbbbbbbbb\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\r\033[J# aaaaaaa >\r# "
> +testseq "aaaaaaaaaabbbbbbbbbb\0033hhhhhhhhh\000RS11" \
> + " # aaaaaaaaaabbbbbbbbbb\b\b\b\b\b\b\b\b\b\b\r\033[J# aaabbbb +\b\b\b\b\b\b"
> +testseq "aaaaaaaaaabbbbbbbbbb\0033\000RS12" \
> + " # aaaaaaaaaabbbbbbbbbb\b\r\033[J# bbbb <\b\b\b\b\b\b"
> +
> +# ASCII resize: cols=13, cursor -1/0/+1
> +testseq "aaaaaaaaaabbbbbbbbbb\0033hhhhhhhhhhhhh\000RS13" \
> + " # aaaaaaaaaabbbbbbbbbb\b\b\b\b\b\b\b\b\b\b\b\b\b\b\r\033[J # aaaaaaa >\b\b\b"
> +testseq "aaaaaaaaaabbbbbbbbbb\0033hhhhhhhhhhhh\000RS13" \
> + " # aaaaaaaaaabbbbbbbbbb\b\b\b\b\b\b\b\b\b\b\b\b\b\r\033[J # aaaaaab +\b\b\b\b\b\b"
> +testseq "aaaaaaaaaabbbbbbbbbb\0033hhhhhhhhhhh\000RS13" \
> + " # aaaaaaaaaabbbbbbbbbb\b\b\b\b\b\b\b\b\b\b\b\b\r\033[J # aaaaabb +\b\b\b\b\b\b"
> +
> +# ASCII resize: cols=79/80/81
> +testseq "aaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccc\0033hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh\000RS79" \
> + " # aaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccc\r # bbbbbbbbbbbbbcccccccccccccccccccccccc <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\bc\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\baaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbcccccccccccccccccccccccc >\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\r\033[J # aaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccc >\r # "
> +testseq "aaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccc\0033hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh\000RS80" \
> + " # aaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccc\r # bbbbbbbbbbbbbcccccccccccccccccccccccc <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\bc\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\baaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbcccccccccccccccccccccccc >\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"
> +testseq "aaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccc\0033hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh\000RS81" \
> + " # aaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccc\r # bbbbbbbbbbbbbcccccccccccccccccccccccc <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\bc\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\baaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbcccccccccccccccccccccccc >\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\r\033[J # aaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccc >\r # "
> +
> +# ASCII window indicator at left edge
> +testseq "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbb" \
> + " # aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbb\r # aaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbb <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"
> +
> +# UTF-8 window indicator at left edge
> +testseq "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\0303\0266bbbbbbbbb" \
> + " # aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\0303\0266bbbbbbbb\r # aaaaaaaaaaaaaaaaaaaaaaaaaaa\0303\0266bbbbbbbbb <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"
> +
> +# ASCII window indicator at right edge
> +testseq "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabb\00330" \
> + " # aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\bbb\b\baaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >\r # "
> +
> +# UTF-8 window indicator at right edge
> +testseq "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\0303\0266b\00330" \
> + " # aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\0303\0266b\b\baaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >\r # "
> +
> +# ASCII window indicator on both sides
> +testseq "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\003340h" \
> + " # aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\baaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\r # aaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb \b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\r # aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbb +\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"
> +
> +# UTF-8 window indicator on both sides
> +testseq "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\0303\0266bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\003340h" \
> + " # aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\baaaaaa\0303\0266bbbbbbbbbbbbbbbbbbbbbbbbbbbbb\r # aaaaaa\0303\0266bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb \b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\r # aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\0303\0266bbbbbbbbbbbbbbbbbbbbbbbbbb +\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"
> +
> +# ASCII redraw at right edge
> +testseq "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabb\00330\0022" \
> + " # aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\bbb\b\baaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >\r # \r\r\n # aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >\r # "
> +
> +# UTF-8 redraw at right edge
> +testseq "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\0303\0266b\00330\0022" \
> + " # aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b <\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\0303\0266b\b\baaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >\r # \r\r\n # aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >\r # "
>
>
> --
> wbr, Kirill
>
bin/ksh: series of patches which fixes wrong terminal width and UTF-8
bin/ksh: series of patches which fixes wrong terminal width and UTF-8
bin/ksh: series of patches which fixes wrong terminal width and UTF-8
bin/ksh: series of patches which fixes wrong terminal width and UTF-8