const int code = keyword(s + 6, SvCUR(TOPs) - 6, 1);
if (!code || code == -KEY_CORE)
DIE(aTHX_ "Can't find an opnumber for \"%s\"", s+6);
- if (code < 0) { /* Overridable. */
+ {
SV * const sv = core_prototype(NULL, s + 6, code, NULL);
if (sv) ret = sv;
}
RETPUSHNO;
}
+ /* Make study a no-op. It's no longer useful and its existence
+ complicates matters elsewhere. This is a low-impact band-aid.
+ The relevant code will be neatly removed in a future release. */
+ RETPUSHYES;
+
if (len < 0xFF) {
quanta = 1;
} else if (len < 0xFFFF) {
const UV u = SvUV_nomg(left) & SvUV_nomg(right);
SETu(u);
}
- if (left_ro_nonnum) SvNIOK_off(left);
+ if (left_ro_nonnum && left != TARG) SvNIOK_off(left);
if (right_ro_nonnum) SvNIOK_off(right);
}
else {
const UV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r);
SETu(result);
}
- if (left_ro_nonnum) SvNIOK_off(left);
+ if (left_ro_nonnum && left != TARG) SvNIOK_off(left);
if (right_ro_nonnum) SvNIOK_off(right);
}
else {
if (PL_encoding && !IN_BYTES) {
sv_recode_to_utf8(TARG, PL_encoding);
tmps = SvPVX(TARG);
- if (SvCUR(TARG) == 0 || !is_utf8_string((U8*)tmps, SvCUR(TARG)) ||
- UNICODE_IS_REPLACEMENT(utf8_to_uvchr((U8*)tmps, NULL))) {
+ if (SvCUR(TARG) == 0
+ || ! is_utf8_string((U8*)tmps, SvCUR(TARG))
+ || UTF8_IS_REPLACEMENT((U8*) tmps, (U8*) tmps + SvCUR(TARG)))
+ {
SvGROW(TARG, 2);
tmps = SvPVX(TARG);
SvCUR_set(TARG, 1);
uv = _to_utf8_upper_flags(s, tmpbuf, &ulen,
cBOOL(IN_LOCALE_RUNTIME), &tainted);
if (uv == GREEK_CAPITAL_LETTER_IOTA
- && utf8_to_uvchr(s, 0) == COMBINING_GREEK_YPOGEGRAMMENI)
+ && utf8_to_uvchr_buf(s, send, 0) == COMBINING_GREEK_YPOGEGRAMMENI)
{
in_iota_subscript = TRUE;
}
d = SvPVX(TARG);
if (DO_UTF8(sv)) {
while (len) {
- if (UTF8_IS_CONTINUED(*s)) {
- STRLEN ulen = UTF8SKIP(s);
- if (ulen > len)
- ulen = len;
- len -= ulen;
- while (ulen--)
- *d++ = *s++;
+ STRLEN ulen = UTF8SKIP(s);
+ bool to_quote = FALSE;
+
+ if (UTF8_IS_INVARIANT(*s)) {
+ if (_isQUOTEMETA(*s)) {
+ to_quote = TRUE;
+ }
}
- else {
- if (!isALNUM(*s))
- *d++ = '\\';
- *d++ = *s++;
- len--;
+ else if (UTF8_IS_DOWNGRADEABLE_START(*s)) {
+
+ /* In locale, we quote all non-ASCII Latin1 chars.
+ * Otherwise use the quoting rules */
+ if (IN_LOCALE_RUNTIME
+ || _isQUOTEMETA(TWO_BYTE_UTF8_TO_UNI(*s, *(s + 1))))
+ {
+ to_quote = TRUE;
+ }
}
+ else if (_is_utf8_quotemeta((U8 *) s)) {
+ to_quote = TRUE;
+ }
+
+ if (to_quote) {
+ *d++ = '\\';
+ }
+ if (ulen > len)
+ ulen = len;
+ len -= ulen;
+ while (ulen--)
+ *d++ = *s++;
}
SvUTF8_on(TARG);
}
+ else if (IN_UNI_8_BIT) {
+ while (len--) {
+ if (_isQUOTEMETA(*s))
+ *d++ = '\\';
+ *d++ = *s++;
+ }
+ }
else {
+ /* For non UNI_8_BIT (and hence in locale) just quote all \W
+ * including everything above ASCII */
while (len--) {
- if (!isALNUM(*s))
+ if (!isWORDCHAR_A(*s))
*d++ = '\\';
*d++ = *s++;
}
RETURN;
}
+PP(pp_fc)
+{
+ dVAR;
+ dTARGET;
+ dSP;
+ SV *source = TOPs;
+ STRLEN len;
+ STRLEN min;
+ SV *dest;
+ const U8 *s;
+ const U8 *send;
+ U8 *d;
+ U8 tmpbuf[UTF8_MAXBYTES * UTF8_MAX_FOLD_CHAR_EXPAND + 1];
+ const bool full_folding = TRUE;
+ const U8 flags = ( full_folding ? FOLD_FLAGS_FULL : 0 )
+ | ( IN_LOCALE_RUNTIME ? FOLD_FLAGS_LOCALE : 0 );
+
+ /* This is a facsimile of pp_lc, but with a thousand bugs thanks to me.
+ * You are welcome(?) -Hugmeir
+ */
+
+ SvGETMAGIC(source);
+
+ dest = TARG;
+
+ if (SvOK(source)) {
+ s = (const U8*)SvPV_nomg_const(source, len);
+ } else {
+ if (ckWARN(WARN_UNINITIALIZED))
+ report_uninit(source);
+ s = (const U8*)"";
+ len = 0;
+ }
+
+ min = len + 1;
+
+ SvUPGRADE(dest, SVt_PV);
+ d = (U8*)SvGROW(dest, min);
+ (void)SvPOK_only(dest);
+
+ SETs(dest);
+
+ send = s + len;
+ if (DO_UTF8(source)) { /* UTF-8 flagged string. */
+ bool tainted = FALSE;
+ while (s < send) {
+ const STRLEN u = UTF8SKIP(s);
+ STRLEN ulen;
+
+ _to_utf8_fold_flags(s, tmpbuf, &ulen, flags, &tainted);
+
+ if (ulen > u && (SvLEN(dest) < (min += ulen - u))) {
+ const UV o = d - (U8*)SvPVX_const(dest);
+ SvGROW(dest, min);
+ d = (U8*)SvPVX(dest) + o;
+ }
+
+ Copy(tmpbuf, d, ulen, U8);
+ d += ulen;
+ s += u;
+ }
+ SvUTF8_on(dest);
+ if (tainted) {
+ TAINT;
+ SvTAINTED_on(dest);
+ }
+ } /* Unflagged string */
+ else if (len) {
+ /* For locale, bytes, and nothing, the behavior is supposed to be the
+ * same as lc().
+ */
+ if ( IN_LOCALE_RUNTIME ) { /* Under locale */
+ TAINT;
+ SvTAINTED_on(dest);
+ for (; s < send; d++, s++)
+ *d = toLOWER_LC(*s);
+ }
+ else if ( !IN_UNI_8_BIT ) { /* Under nothing, or bytes */
+ for (; s < send; d++, s++)
+ *d = toLOWER(*s);
+ }
+ else {
+ /* For ASCII and the Latin-1 range, there's only two troublesome folds,
+ * \x{DF} (\N{LATIN SMALL LETTER SHARP S}), which under full casefolding
+ * becomes 'ss', and \x{B5} (\N{MICRO SIGN}), which under any fold becomes
+ * \x{3BC} (\N{GREEK SMALL LETTER MU}) -- For the rest, the casefold is
+ * their lowercase.
+ */
+ for (; s < send; d++, s++) {
+ if (*s == MICRO_SIGN) {
+ /* \N{MICRO SIGN}'s casefold is \N{GREEK SMALL LETTER MU}, which
+ * is outside of the latin-1 range. There's a couple of ways to
+ * deal with this -- khw discusses them in pp_lc/uc, so go there :)
+ * What we do here is upgrade what we had already casefolded,
+ * then enter an inner loop that appends the rest of the characters
+ * as UTF-8.
+ */
+ len = d - (U8*)SvPVX_const(dest);
+ SvCUR_set(dest, len);
+ len = sv_utf8_upgrade_flags_grow(dest,
+ SV_GMAGIC|SV_FORCE_UTF8_UPGRADE,
+ /* The max expansion for latin1
+ * chars is 1 byte becomes 2 */
+ (send -s) * 2 + 1);
+ d = (U8*)SvPVX(dest) + len;
+
+ CAT_UNI_TO_UTF8_TWO_BYTE(d, GREEK_SMALL_LETTER_MU);
+ s++;
+ for (; s < send; s++) {
+ STRLEN ulen;
+ UV fc = _to_uni_fold_flags(*s, tmpbuf, &ulen, flags);
+ if UNI_IS_INVARIANT(fc) {
+ if ( full_folding && *s == LATIN_SMALL_LETTER_SHARP_S) {
+ *d++ = 's';
+ *d++ = 's';
+ }
+ else
+ *d++ = (U8)fc;
+ }
+ else {
+ Copy(tmpbuf, d, ulen, U8);
+ d += ulen;
+ }
+ }
+ break;
+ }
+ else if (full_folding && *s == LATIN_SMALL_LETTER_SHARP_S) {
+ /* Under full casefolding, LATIN SMALL LETTER SHARP S becomes "ss",
+ * which may require growing the SV.
+ */
+ if (SvLEN(dest) < ++min) {
+ const UV o = d - (U8*)SvPVX_const(dest);
+ SvGROW(dest, min);
+ d = (U8*)SvPVX(dest) + o;
+ }
+ *(d)++ = 's';
+ *d = 's';
+ }
+ else { /* If it's not one of those two, the fold is their lower case */
+ *d = toLOWER_LATIN1(*s);
+ }
+ }
+ }
+ }
+ *d = '\0';
+ SvCUR_set(dest, d - (U8*)SvPVX_const(dest));
+
+ if (SvTAINTED(source))
+ SvTAINT(dest);
+ SvSETMAGIC(dest);
+ RETURN;
+}
+
/* Arrays. */
PP(pp_aslice)
continue;
}
else {
- if (!utf8_to_uvchr(s, 0))
+ if (!utf8_to_uvchr_buf(s, send, 0))
break;
up = (char*)s;
s += UTF8SKIP(s);
{
dSP;
int opnum = SvIOK(cSVOP_sv) ? (int)SvUV(cSVOP_sv) : 0;
- int defgv = PL_opargs[opnum] & OA_DEFGV, whicharg = 0;
+ int defgv = PL_opargs[opnum] & OA_DEFGV ||opnum==OP_GLOB, whicharg = 0;
AV * const at_ = GvAV(PL_defgv);
- SV **svp = AvARRAY(at_);
- I32 minargs = 0, maxargs = 0, numargs = AvFILLp(at_)+1;
+ SV **svp = at_ ? AvARRAY(at_) : NULL;
+ I32 minargs = 0, maxargs = 0, numargs = at_ ? AvFILLp(at_)+1 : 0;
I32 oa = opnum ? PL_opargs[opnum] >> OASHIFT : 0;
bool seen_question = 0;
const char *err = NULL;
/* diag_listed_as: Too many arguments for %s */
Perl_croak(aTHX_
"%s arguments for %s", err,
- opnum ? OP_DESC(PL_op->op_next) : SvPV_nolen_const(cSVOP_sv)
+ opnum ? PL_op_desc[opnum] : SvPV_nolen_const(cSVOP_sv)
);
/* Reset the stack pointer. Without this, we end up returning our own
whicharg++;
switch (oa & 7) {
case OA_SCALAR:
+ try_defsv:
if (!numargs && defgv && whicharg == minargs + 1) {
PERL_SI * const oldsi = PL_curstackinfo;
I32 const oldcxix = oldsi->si_cxix;
}
break;
case OA_SCALARREF:
- {
+ if (!numargs) goto try_defsv;
+ else {
const bool wantscalar =
PL_op->op_private & OPpCOREARGS_SCALARMOD;
if (!svp || !*svp || !SvROK(*svp)
: "reference to one of [$@%*]"
);
PUSHs(SvRV(*svp));
- break;
}
+ break;
default:
DIE(aTHX_ "panic: unknown OA_*: %x", (unsigned)(oa&7));
}
https://perl5.git.perl.org / perl5.git / blobdiff