static int
inputline(void)
{
char *ingetcline, **ingetcpmptl = NULL, **ingetcpmptr = NULL;
int context = ZLCON_LINE_START;
/* If reading code interactively, work out the prompts. */
if (interact && isset(SHINSTDIN)) {
if (!isfirstln) {
ingetcpmptl = &prompt2;
if (rprompt2)
ingetcpmptr = &rprompt2;
context = ZLCON_LINE_CONT;
}
else {
ingetcpmptl = &prompt;
if (rprompt)
ingetcpmptr = &rprompt;
}
}
if (!(interact && isset(SHINSTDIN) && SHTTY != -1 && isset(USEZLE))) {
/*
* If not using zle, read the line straight from the input file.
* Possibly we don't get the whole line at once: in that case,
* we get another chunk with the next call to inputline().
*/
if (interact && isset(SHINSTDIN)) {
/*
* We may still be interactive (e.g. running under emacs),
* so output a prompt if necessary. We don't know enough
* about the input device to be able to handle an rprompt,
* though.
*/
char *pptbuf;
int pptlen;
pptbuf = unmetafy(promptexpand(ingetcpmptl ? *ingetcpmptl : NULL,
0, NULL, NULL, NULL), &pptlen);
write_loop(2, pptbuf, pptlen);
free(pptbuf);
}
ingetcline = shingetline();
} else {
/*
* Since we may have to read multiple lines before getting
* a complete piece of input, we tell zle not to restore the
* original tty settings after reading each chunk. Instead,
* this is done when the history mechanism for the current input
* terminates, which is not until we have the whole input.
* This is supposed to minimise problems on systems that clobber
* typeahead when the terminal settings are altered.
* pws 1998/03/12
*/
int flags = ZLRF_HISTORY|ZLRF_NOSETTY;
if (isset(IGNOREEOF))
flags |= ZLRF_IGNOREEOF;
ingetcline = zleentry(ZLE_CMD_READ, ingetcpmptl, ingetcpmptr,
flags, context);
histdone |= HISTFLAG_SETTY;
}
if (!ingetcline) {
return lexstop = 1;
}
if (errflag) {
free(ingetcline);
errflag |= ERRFLAG_ERROR;
return lexstop = 1;
}
if (isset(VERBOSE)) {
/* Output the whole line read so far. */
zputs(ingetcline, stderr);
fflush(stderr);
}
if (keyboardhackchar && *ingetcline &&
ingetcline[strlen(ingetcline) - 1] == '\n' &&
interact && isset(SHINSTDIN) &&
SHTTY != -1 && ingetcline[1])
{
char *stripptr = ingetcline + strlen(ingetcline) - 2;
if (*stripptr == keyboardhackchar) {
/* Junk an unwanted character at the end of the line.
(key too close to return key) */
int ct = 1; /* force odd */
char *ptr;
if (keyboardhackchar == '\'' || keyboardhackchar == '"' ||
keyboardhackchar == '`') {
/*
* for the chars above, also require an odd count before
* junking
*/
for (ct = 0, ptr = ingetcline; *ptr; ptr++)
if (*ptr == keyboardhackchar)
ct++;
}
if (ct & 1) {
stripptr[0] = '\n';
stripptr[1] = '\0';
}
}
}
isfirstch = 1;
if ((inbufflags & INP_APPEND) && inbuf) {
/*
* We need new input but need to be able to back up
* over the old input, so append this line.
* Pushing the line onto the stack doesn't have the right
* effect.
*
* This is quite a simple and inefficient fix, but currently
* we only need it when backing up over a multi-line $((...
* that turned out to be a command substitution rather than
* a math substitution, which is a very special case.
* So it's not worth rewriting.
*/
char *oinbuf = inbuf;
int newlen = strlen(ingetcline);
int oldlen = (int)(inbufptr - inbuf) + inbufleft;
if (inbufflags & INP_FREE) {
inbuf = realloc(inbuf, oldlen + newlen + 1);
} else {
inbuf = zalloc(oldlen + newlen + 1);
memcpy(inbuf, oinbuf, oldlen);
}
inbufptr += inbuf - oinbuf;
strcpy(inbuf + oldlen, ingetcline);
free(ingetcline);
inbufleft += newlen;
inbufct += newlen;
inbufflags |= INP_FREE;
} else {
/* Put this into the input channel. */
inputsetline(ingetcline, INP_FREE);
}
return 0;
}
char *
zleread(char **lp, char **rp, int flags, int context, char *init, char *finish)
{
char *s, **bracket;
int old_errno = errno;
int tmout = getiparam("TMOUT");
#if defined(HAVE_POLL) || defined(HAVE_SELECT)
/* may not be set, but that's OK since getiparam() returns 0 == off */
baud = getiparam("BAUD");
costmult = (baud) ? 3840000L / baud : 0;
#endif
/* ZLE doesn't currently work recursively. This is needed in case a *
* select loop is used in a function called from ZLE. vared handles *
* this differently itself. */
if(zleactive) {
char *pptbuf;
int pptlen;
pptbuf = unmetafy(promptexpand(lp ? *lp : NULL, 0, NULL, NULL,
&pmpt_attr),
&pptlen);
write_loop(2, pptbuf, pptlen);
free(pptbuf);
return shingetline();
}
/*
* The current status is what we need if we are going
* to display a prompt. We'll remember it here for
* use further in.
*/
pre_zle_status = lastval;
keytimeout = (time_t)getiparam("KEYTIMEOUT");
if (!shout) {
if (SHTTY != -1)
init_shout();
if (!shout)
return NULL;
/* We could be smarter and default to a system read. */
/* If we just got a new shout, make sure the terminal is set up. */
if (termflags & TERM_UNKNOWN)
init_term();
}
fflush(shout);
fflush(stderr);
intr();
insmode = unset(OVERSTRIKE);
eofsent = 0;
resetneeded = 0;
fetchttyinfo = 0;
trashedzle = 0;
raw_lp = lp;
lpromptbuf = promptexpand(lp ? *lp : NULL, 1, NULL, NULL, &pmpt_attr);
raw_rp = rp;
rpmpt_attr = pmpt_attr;
rpromptbuf = promptexpand(rp ? *rp : NULL, 1, NULL, NULL, &rpmpt_attr);
free_prepostdisplay();
zlereadflags = flags;
zlecontext = context;
histline = curhist;
vistartchange = -1;
zleline = (ZLE_STRING_T)zalloc(((linesz = 256) + 2) * ZLE_CHAR_SIZE);
*zleline = ZWC('\0');
virangeflag = lastcmd = done = zlecs = zlell = mark = 0;
vichgflag = 0;
viinsbegin = 0;
statusline = NULL;
selectkeymap("main", 1);
initundo();
fixsuffix();
if ((s = getlinknode(bufstack))) {
setline(s, ZSL_TOEND);
zsfree(s);
if (stackcs != -1) {
zlecs = stackcs;
stackcs = -1;
if (zlecs > zlell)
zlecs = zlell;
CCLEFT();
}
if (stackhist != -1) {
histline = stackhist;
stackhist = -1;
}
handleundo();
}
/*
* If main is linked to the viins keymap, we need to register
* explicitly that we're now in vi insert mode as there's
* no user operation to indicate this.
*/
if (openkeymap("main") == openkeymap("viins"))
viinsert_init();
selectlocalmap(NULL);
if (isset(PROMPTCR))
putc('\r', shout);
if (tmout)
alarm(tmout);
/*
* On some windowing systems we may enter this function before the
* terminal is fully opened and sized, resulting in an infinite
* series of SIGWINCH when the handler prints the prompt before we
* have done so here. Therefore, hold any such signal until the
* first full refresh has completed. The important bit is that the
* handler must not see zleactive = 1 until ZLE really is active.
* See the end of adjustwinsize() in Src/utils.c
*/
queue_signals();
zleactive = 1;
resetneeded = 1;
/*
* Start of the main zle read.
* Fully reset error conditions, including user interrupt.
*/
errflag = retflag = 0;
lastcol = -1;
initmodifier(&zmod);
prefixflag = 0;
zrefresh();
unqueue_signals(); /* Should now be safe to acknowledge SIGWINCH */
zlecallhook(init, NULL);
if ((bracket = getaparam("zle_bracketed_paste")) && arrlen(bracket) == 2)
fputs(*bracket, shout);
zrefresh();
zlecore();
if (errflag)
setsparam((zlecontext == ZLCON_VARED) ?
"ZLE_VARED_ABORTED" :
"ZLE_LINE_ABORTED", zlegetline(NULL, NULL));
if ((bracket = getaparam("zle_bracketed_paste")) && arrlen(bracket) == 2)
fputs(bracket[1], shout);
if (done && !exit_pending && !errflag)
zlecallhook(finish, NULL);
statusline = NULL;
invalidatelist();
trashzle();
free(lpromptbuf);
free(rpromptbuf);
zleactive = zlereadflags = lastlistlen = zlecontext = 0;
alarm(0);
freeundo();
if (eofsent || errflag || exit_pending) {
s = NULL;
} else {
zleline[zlell++] = ZWC('\n');
s = zlegetline(NULL, NULL);
}
free(zleline);
zleline = NULL;
forget_edits();
errno = old_errno;
/* highlight no longer valid */
set_region_highlight(NULL, NULL);
return s;
}
static int
inputline(void)
{
char *ingetcline, **ingetcpmptl = NULL, **ingetcpmptr = NULL;
int context = ZLCON_LINE_START;
/* If reading code interactively, work out the prompts. */
if (interact && isset(SHINSTDIN)) {
if (!isfirstln) {
ingetcpmptl = &prompt2;
if (rprompt2)
ingetcpmptr = &rprompt2;
context = ZLCON_LINE_CONT;
}
else {
ingetcpmptl = &prompt;
if (rprompt)
ingetcpmptr = &rprompt;
}
}
if (!(interact && isset(SHINSTDIN) && SHTTY != -1 && isset(USEZLE))) {
/*
* If not using zle, read the line straight from the input file.
* Possibly we don't get the whole line at once: in that case,
* we get another chunk with the next call to inputline().
*/
if (interact && isset(SHINSTDIN)) {
/*
* We may still be interactive (e.g. running under emacs),
* so output a prompt if necessary. We don't know enough
* about the input device to be able to handle an rprompt,
* though.
*/
char *pptbuf;
int pptlen;
pptbuf = unmetafy(promptexpand(ingetcpmptl ? *ingetcpmptl : NULL,
0, NULL, NULL, NULL), &pptlen);
write_loop(2, pptbuf, pptlen);
free(pptbuf);
}
ingetcline = shingetline();
} else {
/*
* Since we may have to read multiple lines before getting
* a complete piece of input, we tell zle not to restore the
* original tty settings after reading each chunk. Instead,
* this is done when the history mechanism for the current input
* terminates, which is not until we have the whole input.
* This is supposed to minimise problems on systems that clobber
* typeahead when the terminal settings are altered.
* pws 1998/03/12
*/
int flags = ZLRF_HISTORY|ZLRF_NOSETTY;
if (isset(IGNOREEOF))
flags |= ZLRF_IGNOREEOF;
ingetcline = zleentry(ZLE_CMD_READ, ingetcpmptl, ingetcpmptr,
flags, context);
histdone |= HISTFLAG_SETTY;
}
if (!ingetcline) {
return lexstop = 1;
}
if (errflag) {
free(ingetcline);
return lexstop = errflag = 1;
}
if (isset(VERBOSE)) {
/* Output the whole line read so far. */
zputs(ingetcline, stderr);
fflush(stderr);
}
if (keyboardhackchar && *ingetcline &&
ingetcline[strlen(ingetcline) - 1] == '\n' &&
interact && isset(SHINSTDIN) &&
SHTTY != -1 && ingetcline[1])
{
char *stripptr = ingetcline + strlen(ingetcline) - 2;
if (*stripptr == keyboardhackchar) {
/* Junk an unwanted character at the end of the line.
(key too close to return key) */
int ct = 1; /* force odd */
char *ptr;
if (keyboardhackchar == '\'' || keyboardhackchar == '"' ||
keyboardhackchar == '`') {
/*
* for the chars above, also require an odd count before
* junking
*/
for (ct = 0, ptr = ingetcline; *ptr; ptr++)
if (*ptr == keyboardhackchar)
ct++;
}
if (ct & 1) {
stripptr[0] = '\n';
stripptr[1] = '\0';
}
}
}
isfirstch = 1;
/* Put this into the input channel. */
inputsetline(ingetcline, INP_FREE);
return 0;
}
char *
zleread(char **lp, char **rp, int flags, int context)
{
char *s;
int old_errno = errno;
int tmout = getiparam("TMOUT");
#if defined(HAVE_POLL) || defined(HAVE_SELECT)
/* may not be set, but that's OK since getiparam() returns 0 == off */
baud = getiparam("BAUD");
costmult = (baud) ? 3840000L / baud : 0;
#endif
/* ZLE doesn't currently work recursively. This is needed in case a *
* select loop is used in a function called from ZLE. vared handles *
* this differently itself. */
if(zleactive) {
char *pptbuf;
int pptlen;
pptbuf = unmetafy(promptexpand(lp ? *lp : NULL, 0, NULL, NULL,
&pmpt_attr),
&pptlen);
write_loop(2, pptbuf, pptlen);
free(pptbuf);
return shingetline();
}
/*
* The current status is what we need if we are going
* to display a prompt. We'll remember it here for
* use further in.
*/
pre_zle_status = lastval;
keytimeout = (time_t)getiparam("KEYTIMEOUT");
if (!shout) {
if (SHTTY != -1)
init_shout();
if (!shout)
return NULL;
/* We could be smarter and default to a system read. */
/* If we just got a new shout, make sure the terminal is set up. */
if (termflags & TERM_UNKNOWN)
init_term();
}
fflush(shout);
fflush(stderr);
intr();
insmode = unset(OVERSTRIKE);
eofsent = 0;
resetneeded = 0;
fetchttyinfo = 0;
trashedzle = 0;
raw_lp = lp;
lpromptbuf = promptexpand(lp ? *lp : NULL, 1, NULL, NULL, &pmpt_attr);
raw_rp = rp;
rpmpt_attr = pmpt_attr;
rpromptbuf = promptexpand(rp ? *rp : NULL, 1, NULL, NULL, &rpmpt_attr);
free_prepostdisplay();
zlereadflags = flags;
zlecontext = context;
histline = curhist;
undoing = 1;
zleline = (ZLE_STRING_T)zalloc(((linesz = 256) + 2) * ZLE_CHAR_SIZE);
*zleline = ZWC('\0');
virangeflag = lastcmd = done = zlecs = zlell = mark = 0;
vichgflag = 0;
viinsbegin = 0;
statusline = NULL;
selectkeymap("main", 1);
selectlocalmap(NULL);
fixsuffix();
if ((s = getlinknode(bufstack))) {
setline(s, ZSL_TOEND);
zsfree(s);
if (stackcs != -1) {
zlecs = stackcs;
stackcs = -1;
if (zlecs > zlell)
zlecs = zlell;
CCLEFT();
}
if (stackhist != -1) {
histline = stackhist;
stackhist = -1;
}
}
initundo();
if (isset(PROMPTCR))
putc('\r', shout);
if (tmout)
alarm(tmout);
zleactive = 1;
resetneeded = 1;
errflag = retflag = 0;
lastcol = -1;
initmodifier(&zmod);
prefixflag = 0;
zrefresh();
zlecallhook("zle-line-init", NULL);
zlecore();
if (errflag)
setsparam("ZLE_LINE_ABORTED", zlegetline(NULL, NULL));
if (done && !exit_pending && !errflag)
zlecallhook("zle-line-finish", NULL);
statusline = NULL;
invalidatelist();
trashzle();
free(lpromptbuf);
free(rpromptbuf);
zleactive = zlereadflags = lastlistlen = zlecontext = 0;
alarm(0);
freeundo();
if (eofsent) {
s = NULL;
} else {
zleline[zlell++] = ZWC('\n');
s = zlegetline(NULL, NULL);
}
free(zleline);
zleline = NULL;
forget_edits();
errno = old_errno;
/* highlight no longer valid */
set_region_highlight(NULL, NULL);
return s;
}
