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Diffstat (limited to 'Src/builtin.c')
-rw-r--r--Src/builtin.c100
1 files changed, 68 insertions, 32 deletions
diff --git a/Src/builtin.c b/Src/builtin.c
index b43c08235..b5a98cbd2 100644
--- a/Src/builtin.c
+++ b/Src/builtin.c
@@ -58,7 +58,7 @@ static struct builtin builtins[] =
BUILTIN("disable", 0, bin_enable, 0, -1, BIN_DISABLE, "afmrs", NULL),
BUILTIN("disown", 0, bin_fg, 0, -1, BIN_DISOWN, NULL, NULL),
BUILTIN("echo", BINF_SKIPINVALID, bin_print, 0, -1, BIN_ECHO, "neE", "-"),
- BUILTIN("emulate", 0, bin_emulate, 0, 3, 0, "LR", NULL),
+ BUILTIN("emulate", 0, bin_emulate, 0, -1, 0, "LR", NULL),
BUILTIN("enable", 0, bin_enable, 0, -1, BIN_ENABLE, "afmrs", NULL),
BUILTIN("eval", BINF_PSPECIAL, bin_eval, 0, -1, BIN_EVAL, NULL, NULL),
BUILTIN("exit", BINF_PSPECIAL, bin_break, 0, 1, BIN_EXIT, NULL, NULL),
@@ -1498,7 +1498,7 @@ bin_fc(char *nam, char **argv, Options ops, int func)
}
if (OPT_ISSET(ops,'l')) {
/* list the required part of the history */
- retval = fclist(stdout, ops, first, last, asgf, pprog);
+ retval = fclist(stdout, ops, first, last, asgf, pprog, 0);
unqueue_signals();
}
else {
@@ -1530,7 +1530,7 @@ bin_fc(char *nam, char **argv, Options ops, int func)
}
}
ops->ind['n'] = 1; /* No line numbers here. */
- if (!fclist(out, ops, first, last, asgf, pprog)) {
+ if (!fclist(out, ops, first, last, asgf, pprog, 1)) {
char *editor;
if (func == BIN_R)
@@ -1639,7 +1639,7 @@ fcsubs(char **sp, struct asgment *sub)
/**/
static int
fclist(FILE *f, Options ops, zlong first, zlong last,
- struct asgment *subs, Patprog pprog)
+ struct asgment *subs, Patprog pprog, int is_command)
{
int fclistdone = 0;
zlong tmp;
@@ -1652,8 +1652,8 @@ fclist(FILE *f, Options ops, zlong first, zlong last,
last = first;
first = tmp;
}
- if (first > last) {
- zwarnnam("fc", "history events are in wrong order, aborted");
+ if (is_command && first > last) {
+ zwarnnam("fc", "history events can't be executed backwards, aborted");
if (f != stdout)
fclose(f);
return 1;
@@ -1976,9 +1976,10 @@ typeset_single(char *cname, char *pname, Param pm, UNUSED(int func),
tc = 0; /* but don't do a normal conversion */
}
} else if (!setsecondstype(pm, on, off)) {
- if (value && !setsparam(pname, ztrdup(value)))
+ if (value && !(pm = setsparam(pname, ztrdup(value))))
return NULL;
- return pm;
+ usepm = 1;
+ err = 0;
}
}
if (err)
@@ -3054,6 +3055,34 @@ bin_unset(char *name, char **argv, Options ops, int func)
*sse = ']';
}
paramtab = tht;
+ } else if (PM_TYPE(pm->node.flags) == PM_SCALAR ||
+ PM_TYPE(pm->node.flags) == PM_ARRAY) {
+ struct value vbuf;
+ vbuf.isarr = (PM_TYPE(pm->node.flags) == PM_ARRAY ?
+ SCANPM_ARRONLY : 0);
+ vbuf.pm = pm;
+ vbuf.flags = 0;
+ vbuf.start = 0;
+ vbuf.end = -1;
+ vbuf.arr = 0;
+ *ss = '[';
+ if (getindex(&ss, &vbuf, SCANPM_ASSIGNING) == 0 &&
+ vbuf.pm && !(vbuf.pm->node.flags & PM_UNSET)) {
+ if (PM_TYPE(pm->node.flags) == PM_SCALAR) {
+ setstrvalue(&vbuf, ztrdup(""));
+ } else {
+ /* start is after the element for reverse index */
+ int start = vbuf.start - !!(vbuf.flags & VALFLAG_INV);
+ if (start < arrlen(vbuf.pm->u.arr)) {
+ char *arr[2];
+ arr[0] = "";
+ arr[1] = 0;
+ setarrvalue(&vbuf, zarrdup(arr));
+ }
+ }
+ }
+ returnval = errflag;
+ errflag = 0;
} else {
zerrnam(name, "%s: invalid element for unset", s);
returnval = 1;
@@ -4958,14 +4987,14 @@ bin_emulate(UNUSED(char *nam), char **argv, Options ops, UNUSED(int func))
{
int opt_L = OPT_ISSET(ops, 'L');
int opt_R = OPT_ISSET(ops, 'R');
- int saveemulation, savesticky_emulation;
- int ret;
+ int saveemulation, savesticky_emulation, savehackchar;
+ int ret = 1;
char saveopts[OPT_SIZE];
+ char *cmd = 0;
+ const char *shname = *argv;
/* without arguments just print current emulation */
- if (!*argv) {
- const char *shname;
-
+ if (!shname) {
if (opt_L || opt_R) {
zwarnnam("emulate", "not enough arguments");
return 1;
@@ -4995,39 +5024,46 @@ bin_emulate(UNUSED(char *nam), char **argv, Options ops, UNUSED(int func))
/* with single argument set current emulation */
if (!argv[1]) {
- emulate(*argv, OPT_ISSET(ops,'R'));
+ emulate(shname, OPT_ISSET(ops,'R'));
if (OPT_ISSET(ops,'L'))
opts[LOCALOPTIONS] = opts[LOCALTRAPS] = 1;
return 0;
}
- /* If "-c command" is given, evaluate command using specified
- * emulation mode.
- */
- if (strcmp(argv[1], "-c")) {
- zwarnnam("emulate", "unknown argument %s", argv[1]);
- return 1;
- }
+ argv++;
+ memcpy(saveopts, opts, sizeof(opts));
+ savehackchar = keyboardhackchar;
+ cmd = parseopts("emulate", &argv);
- if (!argv[2]) {
- zwarnnam("emulate", "not enough arguments");
- return 1;
+ /* parseopts() has consumed anything that looks like an option */
+ if (*argv) {
+ zwarnnam("emulate", "unknown argument %s", *argv);
+ goto restore;
}
- if (opt_L) {
- zwarnnam("emulate", "option -L incompatible with -c");
- return 1;
- }
+ /* If "-c command" is given, evaluate command using specified
+ * emulation mode.
+ */
+ if (cmd) {
+ if (opt_L) {
+ zwarnnam("emulate", "option -L incompatible with -c");
+ goto restore;
+ }
+ *--argv = cmd; /* on stack, never free()d, see execbuiltin() */
+ } else
+ return 0;
- memcpy(saveopts, opts, sizeof(opts));
saveemulation = emulation;
savesticky_emulation = sticky_emulation;
- emulate(*argv, OPT_ISSET(ops,'R'));
+ emulate(shname, OPT_ISSET(ops,'R'));
sticky_emulation = emulation;
- ret = eval(argv+2);
- memcpy(opts, saveopts, sizeof(opts));
+ ret = eval(argv);
sticky_emulation = savesticky_emulation;
emulation = saveemulation;
+ restore:
+ memcpy(opts, saveopts, sizeof(opts));
+ keyboardhackchar = savehackchar;
+ inittyptab(); /* restore banghist */
return ret;
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-06-19 21:25:57 +0000