/*
* ex_run_str --
* Set up a string of ex commands to run.
*
* PUBLIC: int ex_run_str(SCR *, char *, CHAR_T *, size_t, int, int);
*/
int
ex_run_str(SCR *sp, char *name, CHAR_T *str, size_t len, int ex_flags, int nocopy)
{
GS *gp;
EXCMD *ecp;
gp = sp->gp;
if (EXCMD_RUNNING(gp)) {
CALLOC_RET(sp, ecp, 1, sizeof(EXCMD));
SLIST_INSERT_HEAD(gp->ecq, ecp, q);
} else
ecp = &gp->excmd;
F_INIT(ecp,
ex_flags ? E_BLIGNORE | E_NOAUTO | E_NOPRDEF | E_VLITONLY : 0);
if (nocopy)
ecp->cp = str;
else
if ((ecp->cp = v_wstrdup(sp, str, len)) == NULL)
return (1);
ecp->clen = len;
if (name == NULL)
ecp->if_name = NULL;
else {
if ((ecp->if_name = v_strdup(sp, name, strlen(name))) == NULL)
return (1);
ecp->if_lno = 1;
F_SET(ecp, E_NAMEDISCARD);
}
return (0);
}
/*
* editor --
* Main editor routine.
*
* PUBLIC: int editor(GS *, int, char *[]);
*/
int
editor(GS *gp, int argc, char *argv[])
{
extern int optind;
extern char *optarg;
const char *p;
EVENT ev;
FREF *frp;
SCR *sp;
size_t len;
u_int flags;
int ch, flagchk, lflag, secure, startup, readonly, rval, silent;
char *tag_f, *wsizearg, path[256];
CHAR_T *w;
size_t wlen;
/* Initialize the busy routine, if not defined by the screen. */
if (gp->scr_busy == NULL)
gp->scr_busy = vs_busy;
/* Initialize the message routine, if not defined by the screen. */
if (gp->scr_msg == NULL)
gp->scr_msg = vs_msg;
gp->catd = (nl_catd)-1;
/* Common global structure initialization. */
TAILQ_INIT(gp->dq);
TAILQ_INIT(gp->hq);
SLIST_INIT(gp->ecq);
SLIST_INSERT_HEAD(gp->ecq, &gp->excmd, q);
gp->noprint = DEFAULT_NOPRINT;
/* Structures shared by screens so stored in the GS structure. */
TAILQ_INIT(gp->frefq);
TAILQ_INIT(gp->dcb_store.textq);
SLIST_INIT(gp->cutq);
SLIST_INIT(gp->seqq);
/* Set initial screen type and mode based on the program name. */
readonly = 0;
if (!strcmp(getprogname(), "ex") || !strcmp(getprogname(), "nex"))
LF_INIT(SC_EX);
else {
/* Nview, view are readonly. */
if (!strcmp(getprogname(), "nview") ||
!strcmp(getprogname(), "view"))
readonly = 1;
/* Vi is the default. */
LF_INIT(SC_VI);
}
/* Convert old-style arguments into new-style ones. */
if (v_obsolete(argv))
return (1);
/* Parse the arguments. */
flagchk = '\0';
tag_f = wsizearg = NULL;
lflag = secure = silent = 0;
startup = 1;
/* Set the file snapshot flag. */
F_SET(gp, G_SNAPSHOT);
#ifdef DEBUG
while ((ch = getopt(argc, argv, "c:D:eFlRrSsT:t:vw:")) != EOF)
#else
while ((ch = getopt(argc, argv, "c:eFlRrSst:vw:")) != EOF)
#endif
switch (ch) {
case 'c': /* Run the command. */
/*
* XXX
* We should support multiple -c options.
*/
if (gp->c_option != NULL) {
warnx("only one -c command may be specified.");
return (1);
}
gp->c_option = optarg;
break;
#ifdef DEBUG
case 'D':
switch (optarg[0]) {
case 's':
startup = 0;
break;
case 'w':
attach(gp);
break;
default:
warnx("usage: -D requires s or w argument.");
return (1);
}
break;
#endif
case 'e': /* Ex mode. */
LF_CLR(SC_VI);
LF_SET(SC_EX);
break;
case 'F': /* No snapshot. */
F_CLR(gp, G_SNAPSHOT);
break;
case 'l': /* Set lisp, showmatch options. */
lflag = 1;
break;
case 'R': /* Readonly. */
readonly = 1;
break;
case 'r': /* Recover. */
if (flagchk == 't') {
warnx("only one of -r and -t may be specified.");
return (1);
}
flagchk = 'r';
break;
case 'S':
secure = 1;
break;
case 's':
silent = 1;
break;
#ifdef DEBUG
case 'T': /* Trace. */
if ((gp->tracefp = fopen(optarg, "w")) == NULL) {
warn("%s", optarg);
goto err;
}
(void)fprintf(gp->tracefp,
"\n===\ntrace: open %s\n", optarg);
break;
#endif
case 't': /* Tag. */
if (flagchk == 'r') {
warnx("only one of -r and -t may be specified.");
return (1);
}
if (flagchk == 't') {
warnx("only one tag file may be specified.");
return (1);
}
flagchk = 't';
tag_f = optarg;
break;
case 'v': /* Vi mode. */
LF_CLR(SC_EX);
LF_SET(SC_VI);
break;
case 'w':
wsizearg = optarg;
break;
case '?':
default:
(void)gp->scr_usage();
return (1);
}
argc -= optind;
argv += optind;
/*
* -s option is only meaningful to ex.
*
* If not reading from a terminal, it's like -s was specified.
*/
if (silent && !LF_ISSET(SC_EX)) {
warnx("-s option is only applicable to ex.");
goto err;
}
if (LF_ISSET(SC_EX) && F_ISSET(gp, G_SCRIPTED))
silent = 1;
/*
* Build and initialize the first/current screen. This is a bit
* tricky. If an error is returned, we may or may not have a
* screen structure. If we have a screen structure, put it on a
* display queue so that the error messages get displayed.
*
* !!!
* Everything we do until we go interactive is done in ex mode.
*/
if (screen_init(gp, NULL, &sp)) {
if (sp != NULL)
TAILQ_INSERT_HEAD(gp->dq, sp, q);
goto err;
}
F_SET(sp, SC_EX);
TAILQ_INSERT_HEAD(gp->dq, sp, q);
if (v_key_init(sp)) /* Special key initialization. */
goto err;
{ int oargs[5], *oargp = oargs;
if (lflag) { /* Command-line options. */
*oargp++ = O_LISP;
*oargp++ = O_SHOWMATCH;
}
if (readonly)
*oargp++ = O_READONLY;
if (secure)
*oargp++ = O_SECURE;
*oargp = -1; /* Options initialization. */
if (opts_init(sp, oargs))
goto err;
}
if (wsizearg != NULL) {
ARGS *av[2], a, b;
(void)snprintf(path, sizeof(path), "window=%s", wsizearg);
a.bp = (CHAR_T *)path;
a.len = strlen(path);
b.bp = NULL;
b.len = 0;
av[0] = &a;
av[1] = &b;
(void)opts_set(sp, av, NULL);
}
if (silent) { /* Ex batch mode option values. */
O_CLR(sp, O_AUTOPRINT);
O_CLR(sp, O_PROMPT);
O_CLR(sp, O_VERBOSE);
O_CLR(sp, O_WARN);
F_SET(sp, SC_EX_SILENT);
}
sp->rows = O_VAL(sp, O_LINES); /* Make ex formatting work. */
sp->cols = O_VAL(sp, O_COLUMNS);
if (!silent && startup) { /* Read EXINIT, exrc files. */
if (ex_exrc(sp))
goto err;
if (F_ISSET(sp, SC_EXIT | SC_EXIT_FORCE)) {
if (screen_end(sp))
goto err;
goto done;
}
}
/*
* List recovery files if -r specified without file arguments.
* Note, options must be initialized and startup information
* read before doing this.
*/
if (flagchk == 'r' && argv[0] == NULL) {
if (rcv_list(sp))
goto err;
if (screen_end(sp))
goto err;
goto done;
}
/*
* !!!
* Initialize the default ^D, ^U scrolling value here, after the
* user has had every opportunity to set the window option.
*
* It's historic practice that changing the value of the window
* option did not alter the default scrolling value, only giving
* a count to ^D/^U did that.
*/
sp->defscroll = (O_VAL(sp, O_WINDOW) + 1) / 2;
/*
* If we don't have a command-line option, switch into the right
* editor now, so that we position default files correctly, and
* so that any tags file file-already-locked messages are in the
* vi screen, not the ex screen.
*
* XXX
* If we have a command-line option, the error message can end
* up in the wrong place, but I think that the combination is
* unlikely.
*/
if (gp->c_option == NULL) {
F_CLR(sp, SC_EX | SC_VI);
F_SET(sp, LF_ISSET(SC_EX | SC_VI));
}
/* Open a tag file if specified. */
if (tag_f != NULL) {
CHAR2INT(sp, tag_f, strlen(tag_f) + 1, w, wlen);
if (ex_tag_first(sp, w))
goto err;
}
/*
* Append any remaining arguments as file names. Files are recovery
* files if -r specified. If the tag option or ex startup commands
* loaded a file, then any file arguments are going to come after it.
*/
if (*argv != NULL) {
if (sp->frp != NULL) {
/* Cheat -- we know we have an extra argv slot. */
*--argv = strdup(sp->frp->name);
if (*argv == NULL) {
warn(NULL);
goto err;
}
}
sp->argv = sp->cargv = argv;
F_SET(sp, SC_ARGNOFREE);
if (flagchk == 'r')
F_SET(sp, SC_ARGRECOVER);
}
/*
* If the ex startup commands and or/the tag option haven't already
* created a file, create one. If no command-line files were given,
* use a temporary file.
*/
if (sp->frp == NULL) {
if (sp->argv == NULL) {
if ((frp = file_add(sp, NULL)) == NULL)
goto err;
} else {
if ((frp = file_add(sp, sp->argv[0])) == NULL)
goto err;
if (F_ISSET(sp, SC_ARGRECOVER))
F_SET(frp, FR_RECOVER);
}
if (file_init(sp, frp, NULL, 0))
goto err;
if (EXCMD_RUNNING(gp)) {
(void)ex_cmd(sp);
if (F_ISSET(sp, SC_EXIT | SC_EXIT_FORCE)) {
if (screen_end(sp))
goto err;
goto done;
}
}
}
/*
* Check to see if we need to wait for ex. If SC_SCR_EX is set, ex
* was forced to initialize the screen during startup. We'd like to
* wait for a single character from the user, but we can't because
* we're not in raw mode. We can't switch to raw mode because the
* vi initialization will switch to xterm's alternate screen, causing
* us to lose the messages we're pausing to make sure the user read.
* So, wait for a complete line.
*/
if (F_ISSET(sp, SC_SCR_EX)) {
p = msg_cmsg(sp, CMSG_CONT_R, &len);
(void)write(STDOUT_FILENO, p, len);
for (;;) {
if (v_event_get(sp, &ev, 0, 0))
goto err;
if (ev.e_event == E_INTERRUPT ||
(ev.e_event == E_CHARACTER &&
(ev.e_value == K_CR || ev.e_value == K_NL)))
break;
(void)gp->scr_bell(sp);
}
}
/* Switch into the right editor, regardless. */
F_CLR(sp, SC_EX | SC_VI);
F_SET(sp, LF_ISSET(SC_EX | SC_VI) | SC_STATUS_CNT);
/*
* Main edit loop. Vi handles split screens itself, we only return
* here when switching editor modes or restarting the screen.
*/
while (sp != NULL)
if (F_ISSET(sp, SC_EX) ? ex(&sp) : vi(&sp))
goto err;
done: rval = 0;
if (0)
err: rval = 1;
/* Clean out the global structure. */
v_end(gp);
return (rval);
}
/*
* ex_exrc --
* Read the EXINIT environment variable and the startup exrc files,
* and execute their commands.
*
* PUBLIC: int ex_exrc(SCR *);
*/
int
ex_exrc(SCR *sp)
{
struct stat hsb, lsb;
char *p, *path;
CHAR_T *wp;
size_t wlen;
/*
* Source the system, environment, $HOME and local .exrc values.
* Vi historically didn't check $HOME/.exrc if the environment
* variable EXINIT was set. This is all done before the file is
* read in, because things in the .exrc information can set, for
* example, the recovery directory.
*
* !!!
* While nvi can handle any of the options settings of historic vi,
* the converse is not true. Since users are going to have to have
* files and environmental variables that work with both, we use nvi
* versions of both the $HOME and local startup files if they exist,
* otherwise the historic ones.
*
* !!!
* For a discussion of permissions and when what .exrc files are
* read, see the comment above the exrc_isok() function below.
*
* !!!
* If the user started the historic of vi in $HOME, vi read the user's
* .exrc file twice, as $HOME/.exrc and as ./.exrc. We avoid this, as
* it's going to make some commands behave oddly, and I can't imagine
* anyone depending on it.
*/
switch (exrc_isok(sp, &hsb, _PATH_SYSEXRC, 1, 0)) {
case NOEXIST:
case NOPERM:
break;
case RCOK:
if (ex_run_file(sp, _PATH_SYSEXRC))
return (1);
break;
}
/* Run the commands. */
if (EXCMD_RUNNING(sp->gp))
(void)ex_cmd(sp);
if (F_ISSET(sp, SC_EXIT | SC_EXIT_FORCE))
return (0);
if ((p = getenv("NEXINIT")) != NULL) {
CHAR2INT(sp, p, strlen(p) + 1, wp, wlen);
if (ex_run_str(sp, "NEXINIT", wp, wlen - 1, 1, 0))
return (1);
} else if ((p = getenv("EXINIT")) != NULL) {
CHAR2INT(sp, p, strlen(p) + 1, wp, wlen);
if (ex_run_str(sp, "EXINIT", wp, wlen - 1, 1, 0))
return (1);
} else if ((p = getenv("HOME")) != NULL && *p) {
int st = 0;
if ((path = join(p, _PATH_NEXRC)) == NULL) {
msgq(sp, M_SYSERR, NULL);
return (1);
}
switch (exrc_isok(sp, &hsb, path, 0, 1)) {
case NOEXIST:
free(path);
if ((path = join(p, _PATH_EXRC)) == NULL) {
msgq(sp, M_SYSERR, NULL);
return (1);
}
if (exrc_isok(sp,
&hsb, path, 0, 1) == RCOK && ex_run_file(sp, path))
st = 1;
break;
case NOPERM:
break;
case RCOK:
if (ex_run_file(sp, path))
st = 1;
break;
}
free(path);
if (st)
return st;
}
/* Run the commands. */
if (EXCMD_RUNNING(sp->gp))
(void)ex_cmd(sp);
if (F_ISSET(sp, SC_EXIT | SC_EXIT_FORCE))
return (0);
/* Previous commands may have set the exrc option. */
if (O_ISSET(sp, O_EXRC)) {
switch (exrc_isok(sp, &lsb, _PATH_NEXRC, 0, 0)) {
case NOEXIST:
if (exrc_isok(sp, &lsb, _PATH_EXRC, 0, 0) == RCOK &&
(lsb.st_dev != hsb.st_dev ||
lsb.st_ino != hsb.st_ino) &&
ex_run_file(sp, _PATH_EXRC))
return (1);
break;
case NOPERM:
break;
case RCOK:
if ((lsb.st_dev != hsb.st_dev ||
lsb.st_ino != hsb.st_ino) &&
ex_run_file(sp, _PATH_NEXRC))
return (1);
break;
}
/* Run the commands. */
if (EXCMD_RUNNING(sp->gp))
(void)ex_cmd(sp);
if (F_ISSET(sp, SC_EXIT | SC_EXIT_FORCE))
return (0);
}
return (0);
}
/*
* vi --
* Main vi command loop.
*
* PUBLIC: int vi __P((SCR **));
*/
int
vi(SCR **spp)
{
GS *gp;
MARK abs;
SCR *next, *sp;
VICMD cmd = { 0 }, *vp;
VI_PRIVATE *vip;
int comcount, mapped, rval;
/* Get the first screen. */
sp = *spp;
gp = sp->gp;
/* Point to the command structure. */
vp = &cmd;
/* Reset strange attraction. */
F_SET(vp, VM_RCM_SET);
/* Initialize the vi screen. */
if (v_init(sp))
return (1);
/* Set the focus. */
(void)sp->gp->scr_rename(sp, sp->frp->name, 1);
for (vip = VIP(sp), rval = 0;;) {
/* Resolve messages. */
if (!MAPPED_KEYS_WAITING(sp) && vs_resolve(sp, NULL, 0))
goto ret;
/*
* If not skipping a refresh, return to command mode and
* refresh the screen.
*/
if (F_ISSET(vip, VIP_S_REFRESH))
F_CLR(vip, VIP_S_REFRESH);
else {
sp->showmode = SM_COMMAND;
if (vs_refresh(sp, 0))
goto ret;
}
/* Set the new favorite position. */
if (F_ISSET(vp, VM_RCM_SET | VM_RCM_SETFNB | VM_RCM_SETNNB)) {
F_CLR(vip, VIP_RCM_LAST);
(void)vs_column(sp, &sp->rcm);
}
/*
* If not currently in a map, log the cursor position,
* and set a flag so that this command can become the
* DOT command.
*/
if (MAPPED_KEYS_WAITING(sp))
mapped = 1;
else {
if (log_cursor(sp))
goto err;
mapped = 0;
}
/*
* There may be an ex command waiting, and we returned here
* only because we exited a screen or file. In this case,
* we simply go back into the ex parser.
*/
if (EXCMD_RUNNING(gp)) {
vp->kp = &vikeys[':'];
goto ex_continue;
}
/* Refresh the command structure. */
memset(vp, 0, sizeof(VICMD));
/*
* We get a command, which may or may not have an associated
* motion. If it does, we get it too, calling its underlying
* function to get the resulting mark. We then call the
* command setting the cursor to the resulting mark.
*
* !!!
* Vi historically flushed mapped characters on error, but
* entering extra <escape> characters at the beginning of
* a map wasn't considered an error -- in fact, users would
* put leading <escape> characters in maps to clean up vi
* state before the map was interpreted. Beauty!
*/
switch (v_cmd(sp, DOT, vp, NULL, &comcount, &mapped)) {
case GC_ERR:
goto err;
case GC_ERR_NOFLUSH:
goto gc_err_noflush;
case GC_EVENT:
goto gc_event;
case GC_FATAL:
goto ret;
case GC_INTERRUPT:
goto intr;
case GC_OK:
break;
}
/* Check for security setting. */
if (F_ISSET(vp->kp, V_SECURE) && O_ISSET(sp, O_SECURE)) {
ex_emsg(sp, KEY_NAME(sp, vp->key), EXM_SECURE);
goto err;
}
/*
* Historical practice: if a dot command gets a new count,
* any motion component goes away, i.e. "d3w2." deletes a
* total of 5 words.
*/
if (F_ISSET(vp, VC_ISDOT) && comcount)
DOTMOTION->count = 1;
/* Copy the key flags into the local structure. */
F_SET(vp, vp->kp->flags);
/* Prepare to set the previous context. */
if (F_ISSET(vp, V_ABS | V_ABS_C | V_ABS_L)) {
abs.lno = sp->lno;
abs.cno = sp->cno;
}
/*
* Set the three cursor locations to the current cursor. The
* underlying routines don't bother if the cursor doesn't move.
* This also handles line commands (e.g. Y) defaulting to the
* current line.
*/
vp->m_start.lno = vp->m_stop.lno = vp->m_final.lno = sp->lno;
vp->m_start.cno = vp->m_stop.cno = vp->m_final.cno = sp->cno;
/*
* Do any required motion; v_motion sets the from MARK and the
* line mode flag, as well as the VM_RCM flags.
*/
if (F_ISSET(vp, V_MOTION) &&
v_motion(sp, DOTMOTION, vp, &mapped)) {
if (INTERRUPTED(sp))
goto intr;
goto err;
}
/*
* If a count is set and the command is line oriented, set the
* to MARK here relative to the cursor/from MARK. This is for
* commands that take both counts and motions, i.e. "4yy" and
* "y%". As there's no way the command can know which the user
* did, we have to do it here. (There are commands that are
* line oriented and that take counts ("#G", "#H"), for which
* this calculation is either completely meaningless or wrong.
* Each command must validate the value for itself.
*/
if (F_ISSET(vp, VC_C1SET) && F_ISSET(vp, VM_LMODE))
vp->m_stop.lno += vp->count - 1;
/* Increment the command count. */
++sp->ccnt;
#if defined(DEBUG) && defined(COMLOG)
v_comlog(sp, vp);
#endif
/* Call the function. */
ex_continue: if (vp->kp->func(sp, vp))
goto err;
gc_event:
#ifdef DEBUG
/* Make sure no function left the temporary space locked. */
if (F_ISSET(gp, G_TMP_INUSE)) {
F_CLR(gp, G_TMP_INUSE);
msgq(sp, M_ERR,
"232|vi: temporary buffer not released");
}
#endif
/*
* If we're exiting this screen, move to the next one, or, if
* there aren't any more, return to the main editor loop. The
* ordering is careful, don't discard the contents of sp until
* the end.
*/
if (F_ISSET(sp, SC_EXIT | SC_EXIT_FORCE)) {
if (file_end(sp, NULL, F_ISSET(sp, SC_EXIT_FORCE)))
goto ret;
if (vs_discard(sp, &next))
goto ret;
if (next == NULL && vs_swap(sp, &next, NULL))
goto ret;
*spp = next;
if (screen_end(sp))
goto ret;
if (next == NULL)
break;
/* Switch screens, change focus. */
sp = next;
vip = VIP(sp);
(void)sp->gp->scr_rename(sp, sp->frp->name, 1);
/* Don't trust the cursor. */
F_SET(vip, VIP_CUR_INVALID);
continue;
}
/*
* Set the dot command structure.
*
* !!!
* Historically, commands which used mapped keys did not
* set the dot command, with the exception of the text
* input commands.
*/
if (F_ISSET(vp, V_DOT) && !mapped) {
*DOT = cmd;
F_SET(DOT, VC_ISDOT);
/*
* If a count was supplied for both the command and
* its motion, the count was used only for the motion.
* Turn the count back on for the dot structure.
*/
if (F_ISSET(vp, VC_C1RESET))
F_SET(DOT, VC_C1SET);
/* VM flags aren't retained. */
F_CLR(DOT, VM_COMMASK | VM_RCM_MASK);
}
/*
* Some vi row movements are "attracted" to the last position
* set, i.e. the VM_RCM commands are moths to the VM_RCM_SET
* commands' candle. If the movement is to the EOL the vi
* command handles it. If it's to the beginning, we handle it
* here.
*
* Note, some commands (e.g. _, ^) don't set the VM_RCM_SETFNB
* flag, but do the work themselves. The reason is that they
* have to modify the column in case they're being used as a
* motion component. Other similar commands (e.g. +, -) don't
* have to modify the column because they are always line mode
* operations when used as motions, so the column number isn't
* of any interest.
*
* Does this totally violate the screen and editor layering?
* You betcha. As they say, if you think you understand it,
* you don't.
*/
switch (F_ISSET(vp, VM_RCM_MASK)) {
case 0:
case VM_RCM_SET:
break;
case VM_RCM:
vp->m_final.cno = vs_rcm(sp,
vp->m_final.lno, F_ISSET(vip, VIP_RCM_LAST));
break;
case VM_RCM_SETLAST:
F_SET(vip, VIP_RCM_LAST);
break;
case VM_RCM_SETFNB:
vp->m_final.cno = 0;
/* FALLTHROUGH */
case VM_RCM_SETNNB:
if (nonblank(sp, vp->m_final.lno, &vp->m_final.cno))
goto err;
break;
default:
abort();
}
/* Update the cursor. */
sp->lno = vp->m_final.lno;
sp->cno = vp->m_final.cno;
/*
* Set the absolute mark -- set even if a tags or similar
* command, since the tag may be moving to the same file.
*/
if ((F_ISSET(vp, V_ABS) ||
(F_ISSET(vp, V_ABS_L) && sp->lno != abs.lno) ||
(F_ISSET(vp, V_ABS_C) &&
(sp->lno != abs.lno || sp->cno != abs.cno))) &&
mark_set(sp, ABSMARK1, &abs, 1))
goto err;
if (0) {
err: if (v_event_flush(sp, CH_MAPPED))
msgq(sp, M_BERR,
"110|Vi command failed: mapped keys discarded");
}
/*
* Check and clear interrupts. There's an obvious race, but
* it's not worth fixing.
*/
gc_err_noflush: if (INTERRUPTED(sp)) {
intr: CLR_INTERRUPT(sp);
if (v_event_flush(sp, CH_MAPPED))
msgq(sp, M_ERR,
"231|Interrupted: mapped keys discarded");
else
msgq(sp, M_ERR, "236|Interrupted");
}
/* If the last command switched screens, update. */
if (F_ISSET(sp, SC_SSWITCH)) {
F_CLR(sp, SC_SSWITCH);
/*
* If the current screen is still displayed, it will
* need a new status line.
*/
F_SET(sp, SC_STATUS);
/* Switch screens, change focus. */
sp = sp->nextdisp;
vip = VIP(sp);
(void)sp->gp->scr_rename(sp, sp->frp->name, 1);
/* Don't trust the cursor. */
F_SET(vip, VIP_CUR_INVALID);
/* Refresh so we can display messages. */
if (vs_refresh(sp, 1))
return (1);
}
/* If the last command switched files, change focus. */
if (F_ISSET(sp, SC_FSWITCH)) {
F_CLR(sp, SC_FSWITCH);
(void)sp->gp->scr_rename(sp, sp->frp->name, 1);
}
/* If leaving vi, return to the main editor loop. */
if (F_ISSET(gp, G_SRESTART) || F_ISSET(sp, SC_EX)) {
*spp = sp;
v_dtoh(sp);
gp->scr_discard(sp, NULL);
break;
}
}
if (0)
ret: rval = 1;
return (rval);
}
