static void
printshfuncnode(HashNode hn, int printflags)
{
Shfunc f = (Shfunc) hn;
char *t = 0;
if ((printflags & PRINT_NAMEONLY) ||
((printflags & PRINT_WHENCE_SIMPLE) &&
!(printflags & PRINT_WHENCE_FUNCDEF))) {
zputs(f->nam, stdout);
putchar('\n');
return;
}
if ((printflags & (PRINT_WHENCE_VERBOSE|PRINT_WHENCE_WORD)) &&
!(printflags & PRINT_WHENCE_FUNCDEF)) {
nicezputs(f->nam, stdout);
printf((printflags & PRINT_WHENCE_WORD) ? ": function\n" :
" is a shell function\n");
return;
}
quotedzputs(f->nam, stdout);
if (f->funcdef || f->flags & PM_UNDEFINED) {
printf(" () {\n\t");
if (f->flags & PM_UNDEFINED)
printf("%c undefined\n\t", hashchar);
else
t = getpermtext(f->funcdef, NULL);
if (f->flags & PM_TAGGED)
printf("%c traced\n\t", hashchar);
if (!t) {
char *fopt = "Utkz";
int flgs[] = {
PM_UNALIASED, PM_TAGGED, PM_KSHSTORED, PM_ZSHSTORED, 0
};
int fl;;
zputs("builtin autoload -X", stdout);
for (fl=0;fopt[fl];fl++)
if (f->flags & flgs[fl]) putchar(fopt[fl]);
} else {
zputs(t, stdout);
zsfree(t);
if (f->funcdef->flags & EF_RUN) {
printf("\n\t");
quotedzputs(f->nam, stdout);
printf(" \"$@\"");
}
}
printf("\n}\n");
} else {
printf(" () { }\n");
}
}
void
printshfuncnode(HashNode hn, int printflags)
{
Shfunc f = (Shfunc) hn;
char *t;
if ((printflags & PRINT_NAMEONLY) ||
((printflags & PRINT_WHENCE_SIMPLE) &&
!(printflags & PRINT_WHENCE_FUNCDEF))) {
zputs(f->nam, stdout);
putchar('\n');
return;
}
if ((printflags & PRINT_WHENCE_VERBOSE) &&
!(printflags & PRINT_WHENCE_FUNCDEF)) {
nicezputs(f->nam, stdout);
printf(" is a shell function\n");
return;
}
if (f->flags & PM_UNDEFINED)
printf("undefined ");
if (f->flags & PM_TAGGED)
printf("traced ");
if (!f->funcdef) {
nicezputs(f->nam, stdout);
printf(" () { }\n");
return;
}
t = getpermtext((void *) dupstruct((void *) f->funcdef));
quotedzputs(f->nam, stdout);
printf(" () {\n\t");
zputs(t, stdout);
printf("\n}\n");
zsfree(t);
}
enum loop_return
loop(int toplevel, int justonce)
{
Eprog prog;
int err, non_empty = 0;
queue_signals();
pushheap();
if (!toplevel)
zcontext_save();
for (;;) {
freeheap();
if (stophist == 3) /* re-entry via preprompt() */
hend(NULL);
hbegin(1); /* init history mech */
if (isset(SHINSTDIN)) {
setblock_stdin();
if (interact && toplevel) {
int hstop = stophist;
stophist = 3;
/*
* Reset all errors including the interrupt error status
* immediately, so preprompt runs regardless of what
* just happened. We'll reset again below as a
* precaution to ensure we get back to the command line
* no matter what.
*/
errflag = 0;
preprompt();
if (stophist != 3)
hbegin(1);
else
stophist = hstop;
/*
* Reset all errors, including user interupts.
* This is what allows ^C in an interactive shell
* to return us to the command line.
*/
errflag = 0;
}
}
use_exit_printed = 0;
intr(); /* interrupts on */
lexinit(); /* initialize lexical state */
if (!(prog = parse_event(ENDINPUT))) {
/* if we couldn't parse a list */
hend(NULL);
if ((tok == ENDINPUT && !errflag) ||
(tok == LEXERR && (!isset(SHINSTDIN) || !toplevel)) ||
justonce)
break;
if (exit_pending) {
/*
* Something down there (a ZLE function?) decided
* to exit when there was stuff to clear up.
* Handle that now.
*/
stopmsg = 1;
zexit(exit_pending >> 1, 0);
}
if (tok == LEXERR && !lastval)
lastval = 1;
continue;
}
if (hend(prog)) {
enum lextok toksav = tok;
non_empty = 1;
if (toplevel &&
(getshfunc("preexec") ||
paramtab->getnode(paramtab, "preexec" HOOK_SUFFIX))) {
LinkList args;
char *cmdstr;
/*
* As we're about to freeheap() or popheap()
* anyway, there's no gain in using permanent
* storage here.
*/
args = newlinklist();
addlinknode(args, "preexec");
/* If curline got dumped from the history, we don't know
* what the user typed. */
if (hist_ring && curline.histnum == curhist)
addlinknode(args, hist_ring->node.nam);
else
addlinknode(args, "");
addlinknode(args, dupstring(getjobtext(prog, NULL)));
addlinknode(args, cmdstr = getpermtext(prog, NULL, 0));
callhookfunc("preexec", args, 1, NULL);
/* The only permanent storage is from getpermtext() */
zsfree(cmdstr);
/*
* Note this does *not* remove a user interrupt error
* condition, even though we're at the top level loop:
* that would be inconsistent with the case where
* we didn't execute a preexec function. This is
* an implementation detail that an interrupting user
* does't care about.
*/
errflag &= ~ERRFLAG_ERROR;
}
if (stopmsg) /* unset 'you have stopped jobs' flag */
stopmsg--;
execode(prog, 0, 0, toplevel ? "toplevel" : "file");
tok = toksav;
if (toplevel)
noexitct = 0;
}
if (ferror(stderr)) {
zerr("write error");
clearerr(stderr);
}
if (subsh) /* how'd we get this far in a subshell? */
exit(lastval);
if (((!interact || sourcelevel) && errflag) || retflag)
break;
if (isset(SINGLECOMMAND) && toplevel) {
dont_queue_signals();
if (sigtrapped[SIGEXIT])
dotrap(SIGEXIT);
exit(lastval);
}
if (justonce)
break;
}
static void
printshfuncnode(HashNode hn, int printflags)
{
Shfunc f = (Shfunc) hn;
char *t = 0;
if ((printflags & PRINT_NAMEONLY) ||
((printflags & PRINT_WHENCE_SIMPLE) &&
!(printflags & PRINT_WHENCE_FUNCDEF))) {
zputs(f->node.nam, stdout);
putchar('\n');
return;
}
if ((printflags & (PRINT_WHENCE_VERBOSE|PRINT_WHENCE_WORD)) &&
!(printflags & PRINT_WHENCE_FUNCDEF)) {
nicezputs(f->node.nam, stdout);
printf((printflags & PRINT_WHENCE_WORD) ? ": function" :
(f->node.flags & PM_UNDEFINED) ?
" is an autoload shell function" :
" is a shell function");
if (f->filename && (printflags & PRINT_WHENCE_VERBOSE) &&
strcmp(f->filename, f->node.nam) != 0) {
printf(" from ");
quotedzputs(f->filename, stdout);
}
putchar('\n');
return;
}
quotedzputs(f->node.nam, stdout);
if (f->funcdef || f->node.flags & PM_UNDEFINED) {
printf(" () {\n");
zoutputtab(stdout);
if (f->node.flags & PM_UNDEFINED) {
printf("%c undefined\n", hashchar);
zoutputtab(stdout);
} else
t = getpermtext(f->funcdef, NULL, 1);
if (f->node.flags & (PM_TAGGED|PM_TAGGED_LOCAL)) {
printf("%c traced\n", hashchar);
zoutputtab(stdout);
}
if (!t) {
char *fopt = "UtTkz";
int flgs[] = {
PM_UNALIASED, PM_TAGGED, PM_TAGGED_LOCAL,
PM_KSHSTORED, PM_ZSHSTORED, 0
};
int fl;;
zputs("builtin autoload -X", stdout);
for (fl=0;fopt[fl];fl++)
if (f->node.flags & flgs[fl]) putchar(fopt[fl]);
} else {
zputs(t, stdout);
zsfree(t);
if (f->funcdef->flags & EF_RUN) {
printf("\n");
zoutputtab(stdout);
quotedzputs(f->node.nam, stdout);
printf(" \"$@\"");
}
}
printf("\n}");
} else {
printf(" () { }");
}
if (f->redir) {
t = getpermtext(f->redir, NULL, 1);
if (t) {
zputs(t, stdout);
zsfree(t);
}
}
putchar('\n');
}
enum loop_return
loop(int toplevel, int justonce)
{
Eprog prog;
int err, non_empty = 0;
pushheap();
if (!toplevel)
lexsave();
for (;;) {
freeheap();
if (stophist == 3) /* re-entry via preprompt() */
hend(NULL);
hbegin(1); /* init history mech */
if (isset(SHINSTDIN)) {
setblock_stdin();
if (interact && toplevel) {
int hstop = stophist;
stophist = 3;
preprompt();
if (stophist != 3)
hbegin(1);
else
stophist = hstop;
errflag = 0;
}
}
use_exit_printed = 0;
intr(); /* interrupts on */
lexinit(); /* initialize lexical state */
if (!(prog = parse_event())) { /* if we couldn't parse a list */
hend(NULL);
if ((tok == ENDINPUT && !errflag) ||
(tok == LEXERR && (!isset(SHINSTDIN) || !toplevel)) ||
justonce)
break;
if (exit_pending) {
/*
* Something down there (a ZLE function?) decided
* to exit when there was stuff to clear up.
* Handle that now.
*/
stopmsg = 1;
zexit(exit_pending >> 1, 0);
}
if (tok == LEXERR && !lastval)
lastval = 1;
continue;
}
if (hend(prog)) {
int toksav = tok;
non_empty = 1;
if (toplevel &&
(getshfunc("preexec") ||
paramtab->getnode(paramtab, "preexec" HOOK_SUFFIX))) {
LinkList args;
char *cmdstr;
/*
* As we're about to freeheap() or popheap()
* anyway, there's no gain in using permanent
* storage here.
*/
args = newlinklist();
addlinknode(args, "preexec");
/* If curline got dumped from the history, we don't know
* what the user typed. */
if (hist_ring && curline.histnum == curhist)
addlinknode(args, hist_ring->node.nam);
else
addlinknode(args, "");
addlinknode(args, dupstring(getjobtext(prog, NULL)));
addlinknode(args, cmdstr = getpermtext(prog, NULL, 0));
callhookfunc("preexec", args, 1, NULL);
/* The only permanent storage is from getpermtext() */
zsfree(cmdstr);
errflag = 0;
}
if (stopmsg) /* unset 'you have stopped jobs' flag */
stopmsg--;
execode(prog, 0, 0, toplevel ? "toplevel" : "file");
tok = toksav;
if (toplevel)
noexitct = 0;
}
if (ferror(stderr)) {
zerr("write error");
clearerr(stderr);
}
if (subsh) /* how'd we get this far in a subshell? */
exit(lastval);
if (((!interact || sourcelevel) && errflag) || retflag)
break;
if (isset(SINGLECOMMAND) && toplevel) {
if (sigtrapped[SIGEXIT])
dotrap(SIGEXIT);
exit(lastval);
}
if (justonce)
break;
}
