#include "EXTERN.h"
#define PERL_IN_DOOP_C
#include "perl.h"
+#include "invlist_inline.h"
#ifndef PERL_MICRO
#include <signal.h>
#endif
-STATIC I32
-S_do_trans_simple(pTHX_ SV * const sv)
+
+/* Helper function for do_trans().
+ * Handles cases where the search and replacement charlists aren't UTF-8,
+ * aren't identical, and neither the /d nor /s flag is present.
+ *
+ * sv may or may not be utf8. Note that no code point above 255 can possibly
+ * be in the to-translate set
+ */
+
+STATIC Size_t
+S_do_trans_simple(pTHX_ SV * const sv, const OPtrans_map * const tbl)
{
- I32 matches = 0;
+ Size_t matches = 0;
STRLEN len;
U8 *s = (U8*)SvPV_nomg(sv,len);
U8 * const send = s+len;
- const short * const tbl = (short*)cPVOP->op_pv;
PERL_ARGS_ASSERT_DO_TRANS_SIMPLE;
-
- if (!tbl)
- Perl_croak(aTHX_ "panic: do_trans_simple line %d",__LINE__);
+ DEBUG_y(PerlIO_printf(Perl_debug_log, "%s: %d: entering do_trans_simple:"
+ " input sv:\n",
+ __FILE__, __LINE__));
+ DEBUG_y(sv_dump(sv));
/* First, take care of non-UTF-8 input strings, because they're easy */
if (!SvUTF8(sv)) {
while (s < send) {
- const I32 ch = tbl[*s];
+ const short ch = tbl->map[*s];
if (ch >= 0) {
matches++;
*s = (U8)ch;
SvSETMAGIC(sv);
}
else {
- const I32 grows = PL_op->op_private & OPpTRANS_GROWS;
+ const bool grows = cBOOL(PL_op->op_private & OPpTRANS_GROWS);
U8 *d;
U8 *dstart;
- /* Allow for expansion: $_="a".chr(400); tr/a/\xFE/, FE needs encoding */
+ /* Allow for worst-case expansion: Each input byte can become 2. For a
+ * given input character, this happens when it occupies a single byte
+ * under UTF-8, but is to be translated to something that occupies two:
+ * $_="a".chr(400); tr/a/\xFE/, FE needs encoding. */
if (grows)
Newx(d, len*2+1, U8);
else
dstart = d;
while (s < send) {
STRLEN ulen;
- I32 ch;
+ short ch;
/* Need to check this, otherwise 128..255 won't match */
const UV c = utf8n_to_uvchr(s, send - s, &ulen, UTF8_ALLOW_DEFAULT);
- if (c < 0x100 && (ch = tbl[c]) >= 0) {
+ if (c < 0x100 && (ch = tbl->map[c]) >= 0) {
matches++;
- d = uvchr_to_utf8(d, ch);
+ d = uvchr_to_utf8(d, (UV)ch);
s += ulen;
}
else { /* No match -> copy */
SvUTF8_on(sv);
SvSETMAGIC(sv);
}
+ DEBUG_y(PerlIO_printf(Perl_debug_log, "%s: %d: returning %zu\n",
+ __FILE__, __LINE__, matches));
+ DEBUG_y(sv_dump(sv));
return matches;
}
-STATIC I32
-S_do_trans_count(pTHX_ SV * const sv)
+
+/* Helper function for do_trans().
+ * Handles cases where the search and replacement charlists are identical and
+ * non-utf8: so the string isn't modified, and only a count of modifiable
+ * chars is needed.
+ *
+ * Note that it doesn't handle /d or /s, since these modify the string even if
+ * the replacement list is empty.
+ *
+ * sv may or may not be utf8. Note that no code point above 255 can possibly
+ * be in the to-translate set
+ */
+
+STATIC Size_t
+S_do_trans_count(pTHX_ SV * const sv, const OPtrans_map * const tbl)
{
STRLEN len;
const U8 *s = (const U8*)SvPV_nomg_const(sv, len);
const U8 * const send = s + len;
- I32 matches = 0;
- const short * const tbl = (short*)cPVOP->op_pv;
+ Size_t matches = 0;
PERL_ARGS_ASSERT_DO_TRANS_COUNT;
- if (!tbl)
- Perl_croak(aTHX_ "panic: do_trans_count line %d",__LINE__);
+ DEBUG_y(PerlIO_printf(Perl_debug_log, "%s: %d: entering do_trans_count:"
+ " input sv:\n",
+ __FILE__, __LINE__));
+ DEBUG_y(sv_dump(sv));
if (!SvUTF8(sv)) {
while (s < send) {
- if (tbl[*s++] >= 0)
+ if (tbl->map[*s++] >= 0)
matches++;
}
}
else {
- const I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT;
+ const bool complement = cBOOL(PL_op->op_private & OPpTRANS_COMPLEMENT);
while (s < send) {
STRLEN ulen;
const UV c = utf8n_to_uvchr(s, send - s, &ulen, UTF8_ALLOW_DEFAULT);
if (c < 0x100) {
- if (tbl[c] >= 0)
+ if (tbl->map[c] >= 0)
matches++;
} else if (complement)
matches++;
}
}
+ DEBUG_y(PerlIO_printf(Perl_debug_log, "%s: %d: count returning %zu\n",
+ __FILE__, __LINE__, matches));
return matches;
}
-STATIC I32
-S_do_trans_complex(pTHX_ SV * const sv)
+
+/* Helper function for do_trans().
+ * Handles cases where the search and replacement charlists aren't identical
+ * and both are non-utf8, and one or both of /d, /s is specified.
+ *
+ * sv may or may not be utf8. Note that no code point above 255 can possibly
+ * be in the to-translate set
+ */
+
+STATIC Size_t
+S_do_trans_complex(pTHX_ SV * const sv, const OPtrans_map * const tbl)
{
STRLEN len;
U8 *s = (U8*)SvPV_nomg(sv, len);
U8 * const send = s+len;
- I32 matches = 0;
- const short * const tbl = (short*)cPVOP->op_pv;
+ Size_t matches = 0;
+ const bool complement = cBOOL(PL_op->op_private & OPpTRANS_COMPLEMENT);
PERL_ARGS_ASSERT_DO_TRANS_COMPLEX;
- if (!tbl)
- Perl_croak(aTHX_ "panic: do_trans_complex line %d",__LINE__);
+ DEBUG_y(PerlIO_printf(Perl_debug_log, "%s: %d: entering do_trans_complex:"
+ " input sv:\n",
+ __FILE__, __LINE__));
+ DEBUG_y(sv_dump(sv));
if (!SvUTF8(sv)) {
U8 *d = s;
U8 * const dstart = d;
if (PL_op->op_private & OPpTRANS_SQUASH) {
- const U8* p = send;
+
+ /* What the mapping of the previous character was to. If the new
+ * character has the same mapping, it is squashed from the output
+ * (but still is included in the count) */
+ short previous_map = (short) TR_OOB;
+
while (s < send) {
- const I32 ch = tbl[*s];
- if (ch >= 0) {
- *d = (U8)ch;
- matches++;
- if (p != d - 1 || *p != *d)
- p = d++;
+ const short this_map = tbl->map[*s];
+ if (this_map >= 0) {
+ matches++;
+ if (this_map != previous_map) {
+ *d++ = (U8)this_map;
+ previous_map = this_map;
+ }
}
- else if (ch == -1) /* -1 is unmapped character */
- *d++ = *s;
- else if (ch == -2) /* -2 is delete character */
- matches++;
+ else {
+ if (this_map == (short) TR_UNMAPPED) {
+ *d++ = *s;
+ previous_map = (short) TR_OOB;
+ }
+ else {
+ assert(this_map == (short) TR_DELETE);
+ matches++;
+ }
+ }
+
s++;
}
}
- else {
+ else { /* Not to squash */
while (s < send) {
- const I32 ch = tbl[*s];
- if (ch >= 0) {
+ const short this_map = tbl->map[*s];
+ if (this_map >= 0) {
matches++;
- *d++ = (U8)ch;
+ *d++ = (U8)this_map;
}
- else if (ch == -1) /* -1 is unmapped character */
+ else if (this_map == (short) TR_UNMAPPED)
*d++ = *s;
- else if (ch == -2) /* -2 is delete character */
+ else if (this_map == (short) TR_DELETE)
matches++;
s++;
}
SvCUR_set(sv, d - dstart);
}
else { /* is utf8 */
- const I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT;
- const I32 grows = PL_op->op_private & OPpTRANS_GROWS;
- const I32 del = PL_op->op_private & OPpTRANS_DELETE;
+ const bool squash = cBOOL(PL_op->op_private & OPpTRANS_SQUASH);
+ const bool grows = cBOOL(PL_op->op_private & OPpTRANS_GROWS);
U8 *d;
U8 *dstart;
- STRLEN rlen = 0;
+ Size_t size = tbl->size;
+
+ /* What the mapping of the previous character was to. If the new
+ * character has the same mapping, it is squashed from the output (but
+ * still is included in the count) */
+ UV pch = TR_OOB;
if (grows)
+ /* Allow for worst-case expansion: Each input byte can become 2.
+ * For a given input character, this happens when it occupies a
+ * single byte under UTF-8, but is to be translated to something
+ * that occupies two: */
Newx(d, len*2+1, U8);
else
d = s;
dstart = d;
- if (complement && !del)
- rlen = tbl[0x100];
- if (PL_op->op_private & OPpTRANS_SQUASH) {
- UV pch = 0xfeedface;
- while (s < send) {
- STRLEN len;
- const UV comp = utf8n_to_uvchr(s, send - s, &len,
- UTF8_ALLOW_DEFAULT);
- I32 ch;
-
- if (comp > 0xff) {
- if (!complement) {
- Move(s, d, len, U8);
- d += len;
- }
- else {
- matches++;
- if (!del) {
- ch = (rlen == 0) ? (I32)comp :
- (comp - 0x100 < rlen) ?
- tbl[comp+1] : tbl[0x100+rlen];
- if ((UV)ch != pch) {
- d = uvchr_to_utf8(d, ch);
- pch = (UV)ch;
- }
- s += len;
- continue;
- }
- }
- }
- else if ((ch = tbl[comp]) >= 0) {
- matches++;
- if ((UV)ch != pch) {
- d = uvchr_to_utf8(d, ch);
- pch = (UV)ch;
- }
- s += len;
- continue;
- }
- else if (ch == -1) { /* -1 is unmapped character */
- Move(s, d, len, U8);
- d += len;
- }
- else if (ch == -2) /* -2 is delete character */
- matches++;
- s += len;
- pch = 0xfeedface;
- }
- }
- else {
- while (s < send) {
- STRLEN len;
- const UV comp = utf8n_to_uvchr(s, send - s, &len,
- UTF8_ALLOW_DEFAULT);
- I32 ch;
- if (comp > 0xff) {
- if (!complement) {
- Move(s, d, len, U8);
- d += len;
- }
- else {
- matches++;
- if (!del) {
- if (comp - 0x100 < rlen)
- d = uvchr_to_utf8(d, tbl[comp+1]);
- else
- d = uvchr_to_utf8(d, tbl[0x100+rlen]);
- }
- }
- }
- else if ((ch = tbl[comp]) >= 0) {
- d = uvchr_to_utf8(d, ch);
- matches++;
- }
- else if (ch == -1) { /* -1 is unmapped character */
- Move(s, d, len, U8);
- d += len;
- }
- else if (ch == -2) /* -2 is delete character */
- matches++;
- s += len;
- }
- }
+ while (s < send) {
+ STRLEN len;
+ const UV comp = utf8n_to_uvchr(s, send - s, &len,
+ UTF8_ALLOW_DEFAULT);
+ UV ch;
+ short sch;
+
+ sch = (comp < size)
+ ? tbl->map[comp]
+ : (! complement)
+ ? (short) TR_UNMAPPED
+ : tbl->map[size];
+
+ if (sch >= 0) {
+ ch = (UV)sch;
+ replace:
+ matches++;
+ if (LIKELY(!squash || ch != pch)) {
+ d = uvchr_to_utf8(d, ch);
+ pch = ch;
+ }
+ s += len;
+ continue;
+ }
+ else if (sch == (short) TR_UNMAPPED) {
+ Move(s, d, len, U8);
+ d += len;
+ pch = TR_OOB;
+ }
+ else if (sch == (short) TR_DELETE)
+ matches++;
+ else {
+ assert(sch == (short) TR_R_EMPTY); /* empty replacement */
+ ch = comp;
+ goto replace;
+ }
+
+ s += len;
+ }
+
if (grows) {
sv_setpvn(sv, (char*)dstart, d - dstart);
Safefree(dstart);
SvUTF8_on(sv);
}
SvSETMAGIC(sv);
+ DEBUG_y(PerlIO_printf(Perl_debug_log, "%s: %d: returning %zu\n",
+ __FILE__, __LINE__, matches));
+ DEBUG_y(sv_dump(sv));
return matches;
}
-STATIC I32
-S_do_trans_simple_utf8(pTHX_ SV * const sv)
+
+/* Helper function for do_trans().
+ * Handles cases where an inversion map implementation is to be used and the
+ * search and replacement charlists are identical: so the string isn't
+ * modified, and only a count of modifiable chars is needed.
+ *
+ * Note that it doesn't handle /d nor /s, since these modify the string
+ * even if the replacement charlist is empty.
+ *
+ * sv may or may not be utf8.
+ */
+
+STATIC Size_t
+S_do_trans_count_invmap(pTHX_ SV * const sv, AV * const invmap)
{
U8 *s;
U8 *send;
- U8 *d;
- U8 *start;
- U8 *dstart, *dend;
- I32 matches = 0;
- const I32 grows = PL_op->op_private & OPpTRANS_GROWS;
+ Size_t matches = 0;
STRLEN len;
- SV* const rv =
-#ifdef USE_ITHREADS
- PAD_SVl(cPADOP->op_padix);
-#else
- MUTABLE_SV(cSVOP->op_sv);
-#endif
- HV* const hv = MUTABLE_HV(SvRV(rv));
- SV* const * svp = hv_fetchs(hv, "NONE", FALSE);
- const UV none = svp ? SvUV(*svp) : 0x7fffffff;
- const UV extra = none + 1;
- UV final = 0;
- U8 hibit = 0;
-
- PERL_ARGS_ASSERT_DO_TRANS_SIMPLE_UTF8;
+ SV** const from_invlist_ptr = av_fetch(invmap, 0, TRUE);
+ SV** const to_invmap_ptr = av_fetch(invmap, 1, TRUE);
+ SV* from_invlist = *from_invlist_ptr;
+ SV* to_invmap_sv = *to_invmap_ptr;
+ UV* map = (UV *) SvPVX(to_invmap_sv);
+
+ PERL_ARGS_ASSERT_DO_TRANS_COUNT_INVMAP;
+
+ DEBUG_y(PerlIO_printf(Perl_debug_log, "%s: %d:"
+ "entering do_trans_count_invmap:"
+ " input sv:\n",
+ __FILE__, __LINE__));
+ DEBUG_y(sv_dump(sv));
+ DEBUG_y(PerlIO_printf(Perl_debug_log, "mapping:\n"));
+ DEBUG_y(invmap_dump(from_invlist, (UV *) SvPVX(to_invmap_sv)));
s = (U8*)SvPV_nomg(sv, len);
- if (!SvUTF8(sv)) {
- const U8 *t = s;
- const U8 * const e = s + len;
- while (t < e) {
- const U8 ch = *t++;
- hibit = !NATIVE_BYTE_IS_INVARIANT(ch);
- if (hibit) {
- s = bytes_to_utf8(s, &len);
- break;
- }
- }
- }
- send = s + len;
- start = s;
-
- svp = hv_fetchs(hv, "FINAL", FALSE);
- if (svp)
- final = SvUV(*svp);
- if (grows) {
- /* d needs to be bigger than s, in case e.g. upgrading is required */
- Newx(d, len * 3 + UTF8_MAXBYTES, U8);
- dend = d + len * 3;
- dstart = d;
- }
- else {
- dstart = d = s;
- dend = d + len;
- }
+ send = s + len;
while (s < send) {
- const UV uv = swash_fetch(rv, s, TRUE);
- if (uv < none) {
- s += UTF8SKIP(s);
- matches++;
- d = uvchr_to_utf8(d, uv);
- }
- else if (uv == none) {
- const int i = UTF8SKIP(s);
- Move(s, d, i, U8);
- d += i;
- s += i;
- }
- else if (uv == extra) {
- s += UTF8SKIP(s);
- matches++;
- d = uvchr_to_utf8(d, final);
- }
- else
- s += UTF8SKIP(s);
-
- if (d > dend) {
- const STRLEN clen = d - dstart;
- const STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES;
- if (!grows)
- Perl_croak(aTHX_ "panic: do_trans_simple_utf8 line %d",__LINE__);
- Renew(dstart, nlen + UTF8_MAXBYTES, U8);
- d = dstart + clen;
- dend = dstart + nlen;
- }
- }
- if (grows || hibit) {
- sv_setpvn(sv, (char*)dstart, d - dstart);
- Safefree(dstart);
- if (grows && hibit)
- Safefree(start);
- }
- else {
- *d = '\0';
- SvCUR_set(sv, d - dstart);
- }
- SvSETMAGIC(sv);
- SvUTF8_on(sv);
-
- return matches;
-}
-
-STATIC I32
-S_do_trans_count_utf8(pTHX_ SV * const sv)
-{
- const U8 *s;
- const U8 *start = NULL;
- const U8 *send;
- I32 matches = 0;
- STRLEN len;
- SV* const rv =
-#ifdef USE_ITHREADS
- PAD_SVl(cPADOP->op_padix);
-#else
- MUTABLE_SV(cSVOP->op_sv);
-#endif
- HV* const hv = MUTABLE_HV(SvRV(rv));
- SV* const * const svp = hv_fetchs(hv, "NONE", FALSE);
- const UV none = svp ? SvUV(*svp) : 0x7fffffff;
- const UV extra = none + 1;
- U8 hibit = 0;
+ UV from;
+ SSize_t i;
+ STRLEN s_len;
+
+ /* Get the code point of the next character in the string */
+ if (! SvUTF8(sv) || UTF8_IS_INVARIANT(*s)) {
+ from = *s;
+ s_len = 1;
+ }
+ else {
+ from = utf8_to_uvchr_buf(s, send, &s_len);
+ if (from == 0 && *s != '\0') {
+ _force_out_malformed_utf8_message(s, send, 0, /*die*/TRUE);
+ }
+ }
- PERL_ARGS_ASSERT_DO_TRANS_COUNT_UTF8;
+ /* Look the code point up in the data structure for this tr/// to get
+ * what it maps to */
+ i = _invlist_search(from_invlist, from);
+ assert(i >= 0);
- s = (const U8*)SvPV_nomg_const(sv, len);
- if (!SvUTF8(sv)) {
- const U8 *t = s;
- const U8 * const e = s + len;
- while (t < e) {
- const U8 ch = *t++;
- hibit = !NATIVE_BYTE_IS_INVARIANT(ch);
- if (hibit) {
- start = s = bytes_to_utf8(s, &len);
- break;
- }
- }
- }
- send = s + len;
+ if (map[i] != (UV) TR_UNLISTED) {
+ matches++;
+ }
- while (s < send) {
- const UV uv = swash_fetch(rv, s, TRUE);
- if (uv < none || uv == extra)
- matches++;
- s += UTF8SKIP(s);
+ s += s_len;
}
- if (hibit)
- Safefree(start);
+ DEBUG_y(PerlIO_printf(Perl_debug_log, "%s: %d: returning %zu\n",
+ __FILE__, __LINE__, matches));
return matches;
}
-STATIC I32
-S_do_trans_complex_utf8(pTHX_ SV * const sv)
+/* Helper function for do_trans().
+ * Handles cases where an inversion map implementation is to be used and the
+ * search and replacement charlists are either not identical or flags are
+ * present.
+ *
+ * sv may or may not be utf8.
+ */
+
+STATIC Size_t
+S_do_trans_invmap(pTHX_ SV * const sv, AV * const invmap)
{
- U8 *start, *send;
+ U8 *s;
+ U8 *send;
U8 *d;
- I32 matches = 0;
- const I32 squash = PL_op->op_private & OPpTRANS_SQUASH;
- const I32 del = PL_op->op_private & OPpTRANS_DELETE;
- const I32 grows = PL_op->op_private & OPpTRANS_GROWS;
- SV* const rv =
-#ifdef USE_ITHREADS
- PAD_SVl(cPADOP->op_padix);
-#else
- MUTABLE_SV(cSVOP->op_sv);
-#endif
- HV * const hv = MUTABLE_HV(SvRV(rv));
- SV * const *svp = hv_fetchs(hv, "NONE", FALSE);
- const UV none = svp ? SvUV(*svp) : 0x7fffffff;
- const UV extra = none + 1;
- UV final = 0;
- bool havefinal = FALSE;
+ U8 *s0;
+ U8 *d0;
+ Size_t matches = 0;
STRLEN len;
- U8 *dstart, *dend;
- U8 hibit = 0;
- U8 *s = (U8*)SvPV_nomg(sv, len);
-
- PERL_ARGS_ASSERT_DO_TRANS_COMPLEX_UTF8;
-
- if (!SvUTF8(sv)) {
- const U8 *t = s;
- const U8 * const e = s + len;
- while (t < e) {
- const U8 ch = *t++;
- hibit = !NATIVE_BYTE_IS_INVARIANT(ch);
- if (hibit) {
- s = bytes_to_utf8(s, &len);
- break;
- }
- }
+ SV** const from_invlist_ptr = av_fetch(invmap, 0, TRUE);
+ SV** const to_invmap_ptr = av_fetch(invmap, 1, TRUE);
+ SV** const to_expansion_ptr = av_fetch(invmap, 2, TRUE);
+ NV max_expansion = SvNV(*to_expansion_ptr);
+ SV* from_invlist = *from_invlist_ptr;
+ SV* to_invmap_sv = *to_invmap_ptr;
+ UV* map = (UV *) SvPVX(to_invmap_sv);
+ UV previous_map = TR_OOB;
+ const bool squash = cBOOL(PL_op->op_private & OPpTRANS_SQUASH);
+ const bool delete_unfound = cBOOL(PL_op->op_private & OPpTRANS_DELETE);
+ bool inplace = ! cBOOL(PL_op->op_private & OPpTRANS_GROWS);
+ const UV* from_array = invlist_array(from_invlist);
+ UV final_map = TR_OOB;
+ bool out_is_utf8 = cBOOL(SvUTF8(sv));
+ STRLEN s_len;
+
+ PERL_ARGS_ASSERT_DO_TRANS_INVMAP;
+
+ /* A third element in the array indicates that the replacement list was
+ * shorter than the search list, and this element contains the value to use
+ * for the items that don't correspond */
+ if (av_top_index(invmap) >= 3) {
+ SV** const final_map_ptr = av_fetch(invmap, 3, TRUE);
+ SV* const final_map_sv = *final_map_ptr;
+ final_map = SvUV(final_map_sv);
}
- send = s + len;
- start = s;
- svp = hv_fetchs(hv, "FINAL", FALSE);
- if (svp) {
- final = SvUV(*svp);
- havefinal = TRUE;
+ /* If there is something in the transliteration that could force the input
+ * to be changed to UTF-8, we don't know if we can do it in place, so
+ * assume cannot */
+ if (! out_is_utf8 && (PL_op->op_private & OPpTRANS_CAN_FORCE_UTF8)) {
+ inplace = FALSE;
}
- if (grows) {
- /* d needs to be bigger than s, in case e.g. upgrading is required */
- Newx(d, len * 3 + UTF8_MAXBYTES, U8);
- dend = d + len * 3;
- dstart = d;
+ s = (U8*)SvPV_nomg(sv, len);
+ DEBUG_y(PerlIO_printf(Perl_debug_log, "%s: %d: entering do_trans_invmap:"
+ " input sv:\n",
+ __FILE__, __LINE__));
+ DEBUG_y(sv_dump(sv));
+ DEBUG_y(PerlIO_printf(Perl_debug_log, "mapping:\n"));
+ DEBUG_y(invmap_dump(from_invlist, map));
+
+ send = s + len;
+ s0 = s;
+
+ /* We know by now if there are some possible input strings whose
+ * transliterations are longer than the input. If none can, we just edit
+ * in place. */
+ if (inplace) {
+ d0 = d = s;
}
else {
- dstart = d = s;
- dend = d + len;
+ /* Here, we can't edit in place. We have no idea how much, if any,
+ * this particular input string will grow. However, the compilation
+ * calculated the maximum expansion possible. Use that to allocate
+ * based on the worst case scenario. (First +1 is to round up; 2nd is
+ * for \0) */
+ Newx(d, (STRLEN) (len * max_expansion + 1 + 1), U8);
+ d0 = d;
}
- if (squash) {
- UV puv = 0xfeedface;
- while (s < send) {
- UV uv = swash_fetch(rv, s, TRUE);
-
- if (d > dend) {
- const STRLEN clen = d - dstart;
- const STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES;
- if (!grows)
- Perl_croak(aTHX_ "panic: do_trans_complex_utf8 line %d",__LINE__);
- Renew(dstart, nlen + UTF8_MAXBYTES, U8);
- d = dstart + clen;
- dend = dstart + nlen;
- }
- if (uv < none) {
- matches++;
- s += UTF8SKIP(s);
- if (uv != puv) {
- d = uvchr_to_utf8(d, uv);
- puv = uv;
- }
- continue;
- }
- else if (uv == none) { /* "none" is unmapped character */
- const int i = UTF8SKIP(s);
- Move(s, d, i, U8);
- d += i;
- s += i;
- puv = 0xfeedface;
- continue;
- }
- else if (uv == extra && !del) {
- matches++;
- if (havefinal) {
- s += UTF8SKIP(s);
- if (puv != final) {
- d = uvchr_to_utf8(d, final);
- puv = final;
- }
- }
- else {
- STRLEN len;
- uv = utf8n_to_uvchr(s, send - s, &len, UTF8_ALLOW_DEFAULT);
- if (uv != puv) {
- Move(s, d, len, U8);
- d += len;
- puv = uv;
- }
- s += len;
- }
- continue;
- }
- matches++; /* "none+1" is delete character */
- s += UTF8SKIP(s);
- }
- }
- else {
- while (s < send) {
- const UV uv = swash_fetch(rv, s, TRUE);
- if (d > dend) {
- const STRLEN clen = d - dstart;
- const STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES;
- if (!grows)
- Perl_croak(aTHX_ "panic: do_trans_complex_utf8 line %d",__LINE__);
- Renew(dstart, nlen + UTF8_MAXBYTES, U8);
- d = dstart + clen;
- dend = dstart + nlen;
- }
- if (uv < none) {
- matches++;
- s += UTF8SKIP(s);
- d = uvchr_to_utf8(d, uv);
- continue;
- }
- else if (uv == none) { /* "none" is unmapped character */
- const int i = UTF8SKIP(s);
- Move(s, d, i, U8);
- d += i;
- s += i;
- continue;
- }
- else if (uv == extra && !del) {
- matches++;
- s += UTF8SKIP(s);
- d = uvchr_to_utf8(d, final);
- continue;
- }
- matches++; /* "none+1" is delete character */
- s += UTF8SKIP(s);
+ restart:
+
+ /* Do the actual transliteration */
+ while (s < send) {
+ UV from;
+ UV to;
+ SSize_t i;
+ STRLEN s_len;
+
+ /* Get the code point of the next character in the string */
+ if (! SvUTF8(sv) || UTF8_IS_INVARIANT(*s)) {
+ from = *s;
+ s_len = 1;
+ }
+ else {
+ from = utf8_to_uvchr_buf(s, send, &s_len);
+ if (from == 0 && *s != '\0') {
+ _force_out_malformed_utf8_message(s, send, 0, /*die*/TRUE);
+ }
+ }
+
+ /* Look the code point up in the data structure for this tr/// to get
+ * what it maps to */
+ i = _invlist_search(from_invlist, from);
+ assert(i >= 0);
+
+ to = map[i];
+
+ if (to == (UV) TR_UNLISTED) { /* Just copy the unreplaced character */
+ if (UVCHR_IS_INVARIANT(from) || ! out_is_utf8) {
+ *d++ = (U8) from;
+ }
+ else if (SvUTF8(sv)) {
+ Move(s, d, s_len, U8);
+ d += s_len;
+ }
+ else { /* Convert to UTF-8 */
+ append_utf8_from_native_byte(*s, &d);
+ }
+
+ previous_map = to;
+ s += s_len;
+ continue;
}
+
+ /* Everything else is counted as a match */
+ matches++;
+
+ if (to == (UV) TR_SPECIAL_HANDLING) {
+ if (delete_unfound) {
+ s += s_len;
+ continue;
+ }
+
+ /* Use the final character in the replacement list */
+ to = final_map;
+ }
+ else { /* Here the input code point is to be remapped. The actual
+ value is offset from the base of this entry */
+ to += from - from_array[i];
+ }
+
+ /* If copying all occurrences, or this is the first occurrence, copy it
+ * to the output */
+ if (! squash || to != previous_map) {
+ if (out_is_utf8) {
+ d = uvchr_to_utf8(d, to);
+ }
+ else {
+ if (to >= 256) { /* If need to convert to UTF-8, restart */
+ out_is_utf8 = TRUE;
+ s = s0;
+ d = d0;
+ matches = 0;
+ goto restart;
+ }
+ *d++ = (U8) to;
+ }
+ }
+
+ previous_map = to;
+ s += s_len;
}
- if (grows || hibit) {
- sv_setpvn(sv, (char*)dstart, d - dstart);
- Safefree(dstart);
- if (grows && hibit)
- Safefree(start);
+
+ s_len = 0;
+ s += s_len;
+ if (! inplace) {
+ sv_setpvn(sv, (char*)d0, d - d0);
+ Safefree(d0);
}
else {
*d = '\0';
- SvCUR_set(sv, d - dstart);
+ SvCUR_set(sv, d - d0);
+ }
+
+ if (! SvUTF8(sv) && out_is_utf8) {
+ SvUTF8_on(sv);
}
- SvUTF8_on(sv);
SvSETMAGIC(sv);
+ DEBUG_y(PerlIO_printf(Perl_debug_log, "%s: %d: returning %zu\n",
+ __FILE__, __LINE__, matches));
+ DEBUG_y(sv_dump(sv));
return matches;
}
-I32
+/* Execute a tr//. sv is the value to be translated, while PL_op
+ * should be an OP_TRANS or OP_TRANSR op, whose op_pv field contains a
+ * translation table or whose op_sv field contains an inversion map.
+ *
+ * Returns a count of number of characters translated
+ */
+
+Size_t
Perl_do_trans(pTHX_ SV *sv)
{
STRLEN len;
- const I32 flags = PL_op->op_private;
- const I32 hasutf = flags & (OPpTRANS_FROM_UTF | OPpTRANS_TO_UTF);
+ const U8 flags = PL_op->op_private;
+ bool use_utf8_fcns = cBOOL(flags & OPpTRANS_USE_SVOP);
+ bool identical = cBOOL(flags & OPpTRANS_IDENTICAL);
PERL_ARGS_ASSERT_DO_TRANS;
- if (SvREADONLY(sv) && !(flags & OPpTRANS_IDENTICAL)) {
+ if (SvREADONLY(sv) && ! identical) {
Perl_croak_no_modify();
}
(void)SvPV_const(sv, len);
if (!len)
return 0;
- if (!(flags & OPpTRANS_IDENTICAL)) {
+ if (! identical) {
if (!SvPOKp(sv) || SvTHINKFIRST(sv))
(void)SvPV_force_nomg(sv, len);
(void)SvPOK_only_UTF8(sv);
}
- DEBUG_t( Perl_deb(aTHX_ "2.TBL\n"));
+ if (use_utf8_fcns) {
+ SV* const map =
+#ifdef USE_ITHREADS
+ PAD_SVl(cPADOP->op_padix);
+#else
+ MUTABLE_SV(cSVOP->op_sv);
+#endif
- /* If we use only OPpTRANS_IDENTICAL to bypass the READONLY check,
- * we must also rely on it to choose the readonly strategy.
- */
- if (flags & OPpTRANS_IDENTICAL) {
- return hasutf ? do_trans_count_utf8(sv) : do_trans_count(sv);
- } else if (flags & (OPpTRANS_SQUASH|OPpTRANS_DELETE|OPpTRANS_COMPLEMENT)) {
- return hasutf ? do_trans_complex_utf8(sv) : do_trans_complex(sv);
- } else {
- return hasutf ? do_trans_simple_utf8(sv) : do_trans_simple(sv);
+ if (identical) {
+ return do_trans_count_invmap(sv, (AV *) map);
+ }
+ else {
+ return do_trans_invmap(sv, (AV *) map);
+ }
+ }
+ else {
+ const OPtrans_map * const map = (OPtrans_map*)cPVOP->op_pv;
+
+ if (identical) {
+ return do_trans_count(sv, map);
+ }
+ else if (flags & (OPpTRANS_SQUASH|OPpTRANS_DELETE|OPpTRANS_COMPLEMENT)) {
+ return do_trans_complex(sv, map);
+ }
+ else
+ return do_trans_simple(sv, map);
}
}
SvTAINTED_on(sv);
}
-/* currently converts input to bytes if possible, but doesn't sweat failure */
UV
Perl_do_vecget(pTHX_ SV *sv, STRLEN offset, int size)
{
if (!s) {
s = (unsigned char *)"";
}
-
+
PERL_ARGS_ASSERT_DO_VECGET;
if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */
Perl_croak(aTHX_ "Illegal number of bits in vec");
if (SvUTF8(sv)) {
- if (Perl_sv_utf8_downgrade(aTHX_ sv, TRUE)) {
+ if (Perl_sv_utf8_downgrade_flags(aTHX_ sv, TRUE, 0)) {
/* PVX may have changed */
s = (unsigned char *) SvPV_flags(sv, srclen, svpv_flags);
}
else {
- Perl_ck_warner_d(aTHX_ packWARN(WARN_DEPRECATED),
- "Use of strings with code points over 0xFF as"
- " arguments to vec is deprecated. This will"
- " be a fatal error in Perl 5.32");
+ Perl_croak(aTHX_ "Use of strings with code points over 0xFF"
+ " as arguments to vec is forbidden");
}
}
}
}
else if (size < 8)
- retnum = (s[uoffset] >> bitoffs) & ((1 << size) - 1);
+ retnum = (s[uoffset] >> bitoffs) & nBIT_MASK(size);
else {
if (size == 8)
retnum = s[uoffset];
SV_GMAGIC | SV_UNDEF_RETURNS_NULL);
if (SvUTF8(targ)) {
/* This is handled by the SvPOK_only below...
- if (!Perl_sv_utf8_downgrade(aTHX_ targ, TRUE))
+ if (!Perl_sv_utf8_downgrade_flags(aTHX_ targ, TRUE, 0))
SvUTF8_off(targ);
*/
- (void) Perl_sv_utf8_downgrade(aTHX_ targ, TRUE);
+ (void) Perl_sv_utf8_downgrade_flags(aTHX_ targ, TRUE, 0);
}
(void)SvPOK_only(targ);
}
if (size < 8) {
- mask = (1 << size) - 1;
+ mask = nBIT_MASK(size);
lval &= mask;
s[offset] &= ~(mask << bitoffs);
s[offset] |= lval << bitoffs;
void
Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right)
{
-#ifdef LIBERAL
long *dl;
long *ll;
long *rl;
-#endif
char *dc;
STRLEN leftlen;
STRLEN rightlen;
const char *lc;
const char *rc;
- STRLEN len;
+ STRLEN len = 0;
STRLEN lensave;
const char *lsave;
const char *rsave;
* on zeros without having to do it. In the case of '&', the result is
* zero, and the dangling portion is simply discarded. For '|' and '^', the
* result is the same as the other operand, so the dangling part is just
- * appended to the final result, unchanged. We currently accept above-FF
- * code points in the dangling portion, as that's how it has long worked,
- * and code depends on it staying that way. But it is now fatal for
- * above-FF to appear in the portion that does get operated on. Hence, any
- * above-FF must come only in the longer operand, and only in its dangling
- * portion. That means that at least one of the operands has to be
- * entirely non-UTF-8, and the length of that operand has to be before the
- * first above-FF in the other */
- if (left_utf8) {
- if (right_utf8 || rightlen > leftlen) {
- Perl_croak(aTHX_ fatal_above_ff_msg, PL_op_desc[optype]);
- }
- len = rightlen;
- }
- else if (right_utf8) {
- if (leftlen > rightlen) {
- Perl_croak(aTHX_ fatal_above_ff_msg, PL_op_desc[optype]);
- }
- len = leftlen;
+ * appended to the final result, unchanged. As of perl-5.32, we no longer
+ * accept above-FF code points in the dangling portion.
+ */
+ if (left_utf8 || right_utf8) {
+ Perl_croak(aTHX_ FATAL_ABOVE_FF_MSG, PL_op_desc[optype]);
}
else { /* Neither is UTF-8 */
- len = leftlen < rightlen ? leftlen : rightlen;
+ len = MIN(leftlen, rightlen);
}
lensave = len;
lsave = lc;
rsave = rc;
- SvCUR_set(sv, len);
(void)SvPOK_only(sv);
if (SvOK(sv) || SvTYPE(sv) > SVt_PVMG) {
dc = SvPV_force_nomg_nolen(sv);
sv_usepvn_flags(sv, dc, needlen, SV_HAS_TRAILING_NUL);
dc = SvPVX(sv); /* sv_usepvn() calls Renew() */
}
+ SvCUR_set(sv, len);
-#ifdef LIBERAL
if (len >= sizeof(long)*4 &&
- !((unsigned long)dc % sizeof(long)) &&
- !((unsigned long)lc % sizeof(long)) &&
- !((unsigned long)rc % sizeof(long))) /* It's almost always aligned... */
+ !(PTR2nat(dc) % sizeof(long)) &&
+ !(PTR2nat(lc) % sizeof(long)) &&
+ !(PTR2nat(rc) % sizeof(long))) /* It's almost always aligned... */
{
const STRLEN remainder = len % (sizeof(long)*4);
len /= (sizeof(long)*4);
len = remainder;
}
-#endif
+
switch (optype) {
case OP_BIT_AND:
while (len--)
len = lensave;
if (rightlen > len) {
if (dc == rc)
- SvCUR(sv) = rightlen;
+ SvCUR_set(sv, rightlen);
else
sv_catpvn_nomg(sv, rsave + len, rightlen - len);
}
else if (leftlen > len) {
if (dc == lc)
- SvCUR(sv) = leftlen;
+ SvCUR_set(sv, leftlen);
else
sv_catpvn_nomg(sv, lsave + len, leftlen - len);
}
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