I32 arg;
SV *sv = NULL; /* current item */
const char *item = NULL;/* string value of current item */
- I32 itemsize = 0; /* length of current item, possibly truncated */
+ I32 itemsize = 0; /* length (chars) of item, possibly truncated */
+ I32 itembytes = 0; /* as itemsize, but length in bytes */
I32 fieldsize = 0; /* width of current field */
I32 lines = 0; /* number of lines that have been output */
bool chopspace = (strchr(PL_chopset, ' ') != NULL); /* does $: have space */
STRLEN linemark = 0; /* pos of start of line in output */
NV value;
bool gotsome = FALSE; /* seen at least one non-blank item on this line */
- STRLEN len;
+ STRLEN len; /* length of current sv */
STRLEN linemax; /* estimate of output size in bytes */
bool item_is_utf8 = FALSE;
bool targ_is_utf8 = FALSE;
PerlIO_printf(Perl_debug_log, "%-16s\n", name);
} );
switch (*fpc++) {
- case FF_LINEMARK:
+ case FF_LINEMARK: /* start (or end) of a line */
linemark = t - SvPVX(PL_formtarget);
lines++;
gotsome = FALSE;
break;
- case FF_LITERAL:
+ case FF_LITERAL: /* append <arg> literal chars */
to_copy = *fpc++;
source = (U8 *)f;
f += to_copy;
item_is_utf8 = targ_is_utf8 ? !!DO_UTF8(formsv) : !!SvUTF8(formsv);
goto append;
- case FF_SKIP:
+ case FF_SKIP: /* skip <arg> chars in format */
f += *fpc++;
break;
- case FF_FETCH:
+ case FF_FETCH: /* get next item and set field size to <arg> */
arg = *fpc++;
f += arg;
fieldsize = arg;
SvTAINTED_on(PL_formtarget);
break;
- case FF_CHECKNL:
+ case FF_CHECKNL: /* find max len of item (up to \n) that fits field */
{
- const char *send;
const char *s = item = SvPV_const(sv, len);
- itemsize = len;
- if (DO_UTF8(sv)) {
- itemsize = sv_len_utf8(sv);
- if (itemsize != (I32)len) {
- I32 itembytes;
- if (itemsize > fieldsize) {
- itemsize = fieldsize;
- itembytes = itemsize;
- sv_pos_u2b(sv, &itembytes, 0);
- }
- else
- itembytes = len;
- send = chophere = s + itembytes;
- while (s < send) {
- if (! isCNTRL(*s))
- gotsome = TRUE;
- else if (*s == '\n')
- break;
- s++;
- }
- item_is_utf8 = TRUE;
- itemsize = s - item;
- sv_pos_b2u(sv, &itemsize);
- break;
- }
- }
- item_is_utf8 = FALSE;
- if (itemsize > fieldsize)
- itemsize = fieldsize;
- send = chophere = s + itemsize;
- while (s < send) {
- if (! isCNTRL(*s))
- gotsome = TRUE;
- else if (*s == '\n')
- break;
- s++;
- }
- itemsize = s - item;
+ const char *send = s + len;
+
+ itemsize = 0;
+ item_is_utf8 = DO_UTF8(sv);
+ while (s < send) {
+ if (!isCNTRL(*s))
+ gotsome = TRUE;
+ else if (*s == '\n')
+ break;
+
+ if (item_is_utf8)
+ s += UTF8SKIP(s);
+ else
+ s++;
+ itemsize++;
+ if (itemsize == fieldsize)
+ break;
+ }
+ itembytes = s - item;
break;
}
- case FF_CHECKCHOP:
+ case FF_CHECKCHOP: /* like CHECKNL, but up to highest split point */
{
const char *s = item = SvPV_const(sv, len);
- itemsize = len;
- if (DO_UTF8(sv)) {
- itemsize = sv_len_utf8(sv);
- if (itemsize != (I32)len) {
- I32 itembytes;
- if (itemsize <= fieldsize) {
- const char *send = chophere = s + itemsize;
- while (s < send) {
- if (*s == '\r') {
- itemsize = s - item;
- chophere = s;
- break;
- }
- if (! isCNTRL(*s))
- gotsome = TRUE;
- s++;
- }
- }
- else {
- const char *send;
- itemsize = fieldsize;
- itembytes = itemsize;
- sv_pos_u2b(sv, &itembytes, 0);
- send = chophere = s + itembytes;
- while (s < send || (s == send && isSPACE(*s))) {
- if (isSPACE(*s)) {
- if (chopspace)
- chophere = s;
- if (*s == '\r')
- break;
- }
- else {
- if (! isCNTRL(*s))
- gotsome = TRUE;
- if (strchr(PL_chopset, *s))
- chophere = s + 1;
- }
- s++;
- }
- itemsize = chophere - item;
- sv_pos_b2u(sv, &itemsize);
- }
- item_is_utf8 = TRUE;
- break;
- }
- }
- item_is_utf8 = FALSE;
- if (itemsize <= fieldsize) {
- const char *const send = chophere = s + itemsize;
- while (s < send) {
- if (*s == '\r') {
- itemsize = s - item;
- chophere = s;
- break;
- }
- if (! isCNTRL(*s))
- gotsome = TRUE;
+ const char *send = s + len;
+ I32 size = 0;
+
+ chophere = NULL;
+ item_is_utf8 = DO_UTF8(sv);
+ while (s < send) {
+ /* look for a legal split position */
+ if (isSPACE(*s)) {
+ if (*s == '\r') {
+ chophere = s;
+ itemsize = size;
+ break;
+ }
+ if (chopspace) {
+ /* provisional split point */
+ chophere = s;
+ itemsize = size;
+ }
+ /* we delay testing fieldsize until after we've
+ * processed the possible split char directly
+ * following the last field char; so if fieldsize=3
+ * and item="a b cdef", we consume "a b", not "a".
+ * Ditto further down.
+ */
+ if (size == fieldsize)
+ break;
+ }
+ else {
+ if (strchr(PL_chopset, *s)) {
+ /* provisional split point */
+ /* for a non-space split char, we include
+ * the split char; hence the '+1' */
+ chophere = s + 1;
+ itemsize = size;
+ }
+ if (size == fieldsize)
+ break;
+ if (!isCNTRL(*s))
+ gotsome = TRUE;
+ }
+
+ if (item_is_utf8)
+ s += UTF8SKIP(s);
+ else
s++;
- }
- }
- else {
- const char *send;
- itemsize = fieldsize;
- send = chophere = s + itemsize;
- while (s < send || (s == send && isSPACE(*s))) {
- if (isSPACE(*s)) {
- if (chopspace)
- chophere = s;
- if (*s == '\r')
- break;
- }
- else {
- if (! isCNTRL(*s))
- gotsome = TRUE;
- if (strchr(PL_chopset, *s))
- chophere = s + 1;
- }
- s++;
- }
- itemsize = chophere - item;
- }
+ size++;
+ }
+ if (!chophere || s == send) {
+ chophere = s;
+ itemsize = size;
+ }
+ itembytes = chophere - item;
+
break;
}
- case FF_SPACE:
+ case FF_SPACE: /* append padding space (diff of field, item size) */
arg = fieldsize - itemsize;
if (arg) {
fieldsize -= arg;
}
break;
- case FF_HALFSPACE:
+ case FF_HALFSPACE: /* like FF_SPACE, but only append half as many */
arg = fieldsize - itemsize;
if (arg) {
arg /= 2;
}
break;
- case FF_ITEM:
- to_copy = itemsize;
+ case FF_ITEM: /* append a text item, while blanking ctrl chars */
+ to_copy = itembytes;
source = (U8 *)item;
trans = 1;
- if (item_is_utf8) {
- /* convert to_copy from chars to bytes */
- U8 *s = source;
- while (to_copy--)
- s += UTF8SKIP(s);
- to_copy = s - source;
- }
goto append;
- case FF_CHOP:
+ case FF_CHOP: /* (for ^*) chop the current item */
{
const char *s = chophere;
if (chopspace) {
while (isSPACE(*s))
s++;
}
- sv_chop(sv,s);
+ if (SvPOKp(sv))
+ sv_chop(sv,s);
+ else
+ /* tied, overloaded or similar strangeness.
+ * Do it the hard way */
+ sv_setpvn(sv, s, len - (s-item));
SvSETMAGIC(sv);
break;
}
- case FF_LINESNGL:
+ case FF_LINESNGL: /* process ^* */
chopspace = 0;
- case FF_LINEGLOB:
+
+ case FF_LINEGLOB: /* process @* */
{
const bool oneline = fpc[-1] == FF_LINESNGL;
const char *s = item = SvPV_const(sv, len);
while (s < send) {
if (*s++ == '\n') {
if (oneline) {
- to_copy = s - SvPVX_const(sv) - 1;
+ to_copy = s - item - 1;
chophere = s;
break;
} else {
break;
}
- case FF_0DECIMAL:
+ case FF_0DECIMAL: /* like FF_DECIMAL but for 0### */
arg = *fpc++;
#if defined(USE_LONG_DOUBLE)
fmt = (const char *)
"%#0*.*f" : "%0*.*f");
#endif
goto ff_dec;
- case FF_DECIMAL:
+
+ case FF_DECIMAL: /* do @##, ^##, where <arg>=(precision|flags) */
arg = *fpc++;
#if defined(USE_LONG_DOUBLE)
fmt = (const char *)
}
/* Formats aren't yet marked for locales, so assume "yes". */
{
- STORE_NUMERIC_STANDARD_SET_LOCAL();
+ DECLARE_STORE_LC_NUMERIC_SET_TO_NEEDED();
arg &= ~(FORM_NUM_POINT|FORM_NUM_BLANK);
+ /* we generate fmt ourselves so it is safe */
+ GCC_DIAG_IGNORE(-Wformat-nonliteral);
my_snprintf(t, SvLEN(PL_formtarget) - (t - SvPVX(PL_formtarget)), fmt, (int) fieldsize, (int) arg, value);
- RESTORE_NUMERIC_STANDARD();
+ GCC_DIAG_RESTORE;
+ RESTORE_LC_NUMERIC();
}
t += fieldsize;
break;
- case FF_NEWLINE:
+ case FF_NEWLINE: /* delete trailing spaces, then append \n */
f++;
while (t-- > (SvPVX(PL_formtarget) + linemark) && *t == ' ') ;
t++;
*t++ = '\n';
break;
- case FF_BLANK:
+ case FF_BLANK: /* for arg==0: do '~'; for arg>0 : do '~~' */
arg = *fpc++;
if (gotsome) {
if (arg) { /* repeat until fields exhausted? */
}
break;
- case FF_MORE:
+ case FF_MORE: /* replace long end of string with '...' */
{
const char *s = chophere;
const char *send = item + len;
}
break;
}
- case FF_END:
+
+ case FF_END: /* tidy up, then return */
end:
assert(t < SvPVX_const(PL_formtarget) + SvLEN(PL_formtarget));
*t = '\0';
/*
=for apidoc caller_cx
-The XSUB-writer's equivalent of L<caller()|perlfunc/caller>. The
+The XSUB-writer's equivalent of L<caller()|perlfunc/caller>. The
returned C<PERL_CONTEXT> structure can be interrogated to find all the
-information returned to Perl by C<caller>. Note that XSUBs don't get a
+information returned to Perl by C<caller>. Note that XSUBs don't get a
stack frame, so C<caller_cx(0, NULL)> will return information for the
immediately-surrounding Perl code.
This function skips over the automatic calls to C<&DB::sub> made on the
-behalf of the debugger. If the stack frame requested was a sub called by
+behalf of the debugger. If the stack frame requested was a sub called by
C<DB::sub>, the return value will be the frame for the call to
C<DB::sub>, since that has the correct line number/etc. for the call
-site. If I<dbcxp> is non-C<NULL>, it will be set to a pointer to the
+site. If I<dbcxp> is non-C<NULL>, it will be set to a pointer to the
frame for the sub call itself.
=cut
return NORMAL;
}
+/* SVs on the stack that have any of the flags passed in are left as is.
+ Other SVs are protected via the mortals stack if lvalue is true, and
+ copied otherwise. */
+
STATIC SV **
-S_adjust_stack_on_leave(pTHX_ SV **newsp, SV **sp, SV **mark, I32 gimme, U32 flags)
+S_adjust_stack_on_leave(pTHX_ SV **newsp, SV **sp, SV **mark, I32 gimme,
+ U32 flags, bool lvalue)
{
bool padtmp = 0;
PERL_ARGS_ASSERT_ADJUST_STACK_ON_LEAVE;
if (gimme == G_SCALAR) {
if (MARK < SP)
*++newsp = ((SvFLAGS(*SP) & flags) || (padtmp && SvPADTMP(*SP)))
- ? *SP : sv_mortalcopy(*SP);
+ ? *SP
+ : lvalue
+ ? sv_2mortal(SvREFCNT_inc_simple_NN(*SP))
+ : sv_mortalcopy(*SP);
else {
/* MEXTEND() only updates MARK, so reuse it instead of newsp. */
MARK = newsp;
if ((SvFLAGS(*MARK) & flags) || (padtmp && SvPADTMP(*MARK)))
*++newsp = *MARK;
else {
- *++newsp = sv_mortalcopy(*MARK);
+ *++newsp = lvalue
+ ? sv_2mortal(SvREFCNT_inc_simple_NN(*MARK))
+ : sv_mortalcopy(*MARK);
TAINT_NOT; /* Each item is independent */
}
}
gimme = OP_GIMME(PL_op, (cxstack_ix >= 0) ? gimme : G_SCALAR);
TAINT_NOT;
- SP = adjust_stack_on_leave(newsp, SP, newsp, gimme, SVs_PADTMP|SVs_TEMP);
+ SP = adjust_stack_on_leave(newsp, SP, newsp, gimme, SVs_PADTMP|SVs_TEMP,
+ PL_op->op_private & OPpLVALUE);
PL_curpm = newpm; /* Don't pop $1 et al till now */
LEAVE_with_name("block");
newsp = PL_stack_base + cx->blk_loop.resetsp;
TAINT_NOT;
- SP = adjust_stack_on_leave(newsp, SP, MARK, gimme, 0);
+ SP = adjust_stack_on_leave(newsp, SP, MARK, gimme, 0,
+ PL_op->op_private & OPpLVALUE);
PUTBACK;
POPLOOP(cx); /* Stack values are safe: release loop vars ... */
else {
anum = SvIVx(POPs);
#ifdef VMS
- if (anum == 1 && (PL_op->op_private & OPpEXIT_VMSISH))
+ if (anum == 1
+ && SvTRUE(cop_hints_fetch_pvs(PL_curcop, "vmsish_exit", 0)))
anum = 0;
- VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
+ VMSISH_HUSHED =
+ VMSISH_HUSHED || (PL_curcop->op_private & OPpHUSH_VMSISH);
#endif
}
PL_exit_flags |= PERL_EXIT_EXPECTED;
Locate the CV corresponding to the currently executing sub or eval.
If db_seqp is non_null, skip CVs that are in the DB package and populate
*db_seqp with the cop sequence number at the point that the DB:: code was
-entered. (allows debuggers to eval in the scope of the breakpoint rather
-than in the scope of the debugger itself).
+entered. (This allows debuggers to eval in the scope of the breakpoint
+rather than in the scope of the debugger itself.)
=cut
*/
if (!IS_SAFE_PATHNAME(p, len, "require"))
return NULL;
+ /* we use the value of errno later to see how stat() or open() failed.
+ * We don't want it set if the stat succeeded but we still failed,
+ * such as if the name exists, but is a directory */
+ errno = 0;
+
st_rc = PerlLIO_stat(p, &st);
if (st_rc < 0 || S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode)) {
return NULL;
}
-#if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO)
+#if !defined(PERLIO_IS_STDIO)
return PerlIO_openn(aTHX_ ":", PERL_SCRIPT_MODE, -1, 0, 0, NULL, 1, &name);
#else
return PerlIO_open(p, PERL_SCRIPT_MODE);
STRLEN unixlen;
#ifdef VMS
int vms_unixname = 0;
- char *unixnamebuf;
char *unixdir;
- char *unixdirbuf;
#endif
const char *tryname = NULL;
SV *namesv = NULL;
* name can be translated to UNIX.
*/
- if ((unixnamebuf = SvPVX(sv_2mortal(newSVpv("", VMS_MAXRSS-1))))
- && (unixname = tounixspec(name, unixnamebuf)) != NULL) {
+ if ((unixname =
+ tounixspec(name, SvPVX(sv_2mortal(newSVpv("", VMS_MAXRSS-1)))))
+ != NULL) {
unixlen = strlen(unixname);
vms_unixname = 1;
}
if (vms_unixname)
#endif
{
+ SV *nsv = sv;
namesv = newSV_type(SVt_PV);
for (i = 0; i <= AvFILL(ar); i++) {
SV * const dirsv = *av_fetch(ar, i, TRUE);
- if (SvTIED_mg((const SV *)ar, PERL_MAGIC_tied))
- mg_get(dirsv);
+ SvGETMAGIC(dirsv);
if (SvROK(dirsv)) {
int count;
SV **svp;
SV *loader = dirsv;
if (SvTYPE(SvRV(loader)) == SVt_PVAV
- && !sv_isobject(loader))
+ && !SvOBJECT(SvRV(loader)))
{
loader = *av_fetch(MUTABLE_AV(SvRV(loader)), 0, TRUE);
+ SvGETMAGIC(loader);
}
Perl_sv_setpvf(aTHX_ namesv, "/loader/0x%"UVxf"/%s",
tryname = SvPVX_const(namesv);
tryrsfp = NULL;
+ if (SvPADTMP(nsv)) {
+ nsv = sv_newmortal();
+ SvSetSV_nosteal(nsv,sv);
+ }
+
ENTER_with_name("call_INC");
SAVETMPS;
EXTEND(SP, 2);
PUSHMARK(SP);
PUSHs(dirsv);
- PUSHs(sv);
+ PUSHs(nsv);
PUTBACK;
+ if (SvGMAGICAL(loader)) {
+ SV *l = sv_newmortal();
+ sv_setsv_nomg(l, loader);
+ loader = l;
+ }
if (sv_isobject(loader))
count = call_method("INC", G_ARRAY);
else
STRLEN dirlen;
if (SvOK(dirsv)) {
- dir = SvPV_const(dirsv, dirlen);
+ dir = SvPV_nomg_const(dirsv, dirlen);
} else {
dir = "";
dirlen = 0;
if (!IS_SAFE_SYSCALL(dir, dirlen, "@INC entry", "require"))
continue;
#ifdef VMS
- if (((unixdirbuf = SvPVX(sv_2mortal(newSVpv("", VMS_MAXRSS-1)))) == NULL)
- || ((unixdir = tounixpath(dir, unixdirbuf)) == NULL))
+ if ((unixdir =
+ tounixpath(dir, SvPVX(sv_2mortal(newSVpv("", VMS_MAXRSS-1)))))
+ == NULL)
continue;
sv_setpv(namesv, unixdir);
sv_catpv(namesv, unixname);
TAINT_NOT;
SP = adjust_stack_on_leave((gimme == G_VOID) ? SP : newsp, SP, newsp,
- gimme, SVs_TEMP);
+ gimme, SVs_TEMP, FALSE);
PL_curpm = newpm; /* Don't pop $1 et al till now */
#ifdef DEBUGGING
PERL_UNUSED_VAR(optype);
TAINT_NOT;
- SP = adjust_stack_on_leave(newsp, SP, newsp, gimme, SVs_PADTMP|SVs_TEMP);
+ SP = adjust_stack_on_leave(newsp, SP, newsp, gimme,
+ SVs_PADTMP|SVs_TEMP, FALSE);
PL_curpm = newpm; /* Don't pop $1 et al till now */
LEAVE_with_name("eval_scope");
assert(CxTYPE(cx) == CXt_GIVEN);
TAINT_NOT;
- SP = adjust_stack_on_leave(newsp, SP, newsp, gimme, SVs_PADTMP|SVs_TEMP);
+ SP = adjust_stack_on_leave(newsp, SP, newsp, gimme,
+ SVs_PADTMP|SVs_TEMP, FALSE);
PL_curpm = newpm; /* Don't pop $1 et al till now */
LEAVE_with_name("given");
assert(CxTYPE(cx) == CXt_WHEN);
TAINT_NOT;
- SP = adjust_stack_on_leave(newsp, SP, newsp, gimme, SVs_PADTMP|SVs_TEMP);
+ SP = adjust_stack_on_leave(newsp, SP, newsp, gimme,
+ SVs_PADTMP|SVs_TEMP, FALSE);
PL_curpm = newpm; /* pop $1 et al */
LEAVE_with_name("when");
https://perl5.git.perl.org / perl5.git / blobdiff