# include "regcomp.h"
#endif
+#include "dquote_static.c"
+
#ifdef op
#undef op
#endif /* op */
*/
#define WORST 0 /* Worst case. */
#define HASWIDTH 0x01 /* Known to match non-null strings. */
-#define SIMPLE 0x02 /* Simple enough to be STAR/PLUS operand. */
+
+/* Simple enough to be STAR/PLUS operand, in an EXACT node must be a single
+ * character, and if utf8, must be invariant. */
+#define SIMPLE 0x02
#define SPSTART 0x04 /* Starts with * or +. */
#define TRYAGAIN 0x08 /* Weeded out a declaration. */
#define POSTPONED 0x10 /* (?1),(?&name), (??{...}) or similar */
#define PAREN_SET(u8str,paren) PBYTE(u8str,paren) |= PBITVAL(paren)
#define PAREN_UNSET(u8str,paren) PBYTE(u8str,paren) &= (~PBITVAL(paren))
+/* If not already in utf8, do a longjmp back to the beginning */
+#define UTF8_LONGJMP 42 /* Choose a value not likely to ever conflict */
+#define REQUIRE_UTF8 STMT_START { \
+ if (! UTF) JMPENV_JUMP(UTF8_LONGJMP); \
+ } STMT_END
/* About scan_data_t.
#define SCF_TRIE_RESTUDY 0x4000 /* Do restudy? */
#define SCF_SEEN_ACCEPT 0x8000
-#define UTF (RExC_utf8 != 0)
-#define LOC ((RExC_flags & RXf_PMf_LOCALE) != 0)
-#define FOLD ((RExC_flags & RXf_PMf_FOLD) != 0)
+#define UTF cBOOL(RExC_utf8)
+#define LOC cBOOL(RExC_flags & RXf_PMf_LOCALE)
+#define UNI_SEMANTICS cBOOL(RExC_flags & RXf_PMf_UNICODE)
+#define FOLD cBOOL(RExC_flags & RXf_PMf_FOLD)
#define OOB_UNICODE 12345678
#define OOB_NAMEDCLASS -1
Dumps the final compressed table form of the trie to Perl_debug_log.
Used for debugging make_trie().
*/
-
+
STATIC void
S_dump_trie(pTHX_ const struct _reg_trie_data *trie, HV *widecharmap,
AV *revcharmap, U32 depth)
U32 state;
SV *sv=sv_newmortal();
int colwidth= widecharmap ? 6 : 4;
+ U16 word;
GET_RE_DEBUG_FLAGS_DECL;
PERL_ARGS_ASSERT_DUMP_TRIE;
}
PerlIO_printf( Perl_debug_log, "\n" );
}
+ PerlIO_printf(Perl_debug_log, "%*sword_info N:(prev,len)=", (int)depth*2, "");
+ for (word=1; word <= trie->wordcount; word++) {
+ PerlIO_printf(Perl_debug_log, " %d:(%d,%d)",
+ (int)word, (int)(trie->wordinfo[word].prev),
+ (int)(trie->wordinfo[word].len));
+ }
+ PerlIO_printf(Perl_debug_log, "\n" );
}
/*
Dumps a fully constructed but uncompressed trie in list form.
#endif
+
/* make_trie(startbranch,first,last,tail,word_count,flags,depth)
startbranch: the first branch in the whole branch sequence
first : start branch of sequence of branch-exact nodes.
U16 dupe= trie->states[ state ].wordnum; \
regnode * const noper_next = regnext( noper ); \
\
- if (trie->wordlen) \
- trie->wordlen[ curword ] = wordlen; \
DEBUG_r({ \
/* store the word for dumping */ \
SV* tmp; \
}); \
\
curword++; \
+ trie->wordinfo[curword].prev = 0; \
+ trie->wordinfo[curword].len = wordlen; \
+ trie->wordinfo[curword].accept = state; \
\
if ( noper_next < tail ) { \
if (!trie->jump) \
} \
\
if ( dupe ) { \
- /* So it's a dupe. This means we need to maintain a */\
- /* linked-list from the first to the next. */\
- /* we only allocate the nextword buffer when there */\
- /* a dupe, so first time we have to do the allocation */\
- if (!trie->nextword) \
- trie->nextword = (U16 *) \
- PerlMemShared_calloc( word_count + 1, sizeof(U16)); \
- while ( trie->nextword[dupe] ) \
- dupe= trie->nextword[dupe]; \
- trie->nextword[dupe]= curword; \
+ /* It's a dupe. Pre-insert into the wordinfo[].prev */\
+ /* chain, so that when the bits of chain are later */\
+ /* linked together, the dups appear in the chain */\
+ trie->wordinfo[curword].prev = trie->wordinfo[dupe].prev; \
+ trie->wordinfo[dupe].prev = curword; \
} else { \
/* we haven't inserted this word yet. */ \
trie->states[ state ].wordnum = curword; \
regnode *jumper = NULL;
regnode *nextbranch = NULL;
regnode *convert = NULL;
+ U32 *prev_states; /* temp array mapping each state to previous one */
/* we just use folder as a flag in utf8 */
const U8 * const folder = ( flags == EXACTF
? PL_fold
trie->charmap = (U16 *) PerlMemShared_calloc( 256, sizeof(U16) );
if (!(UTF && folder))
trie->bitmap = (char *) PerlMemShared_calloc( ANYOF_BITMAP_SIZE, 1 );
+ trie->wordinfo = (reg_trie_wordinfo *) PerlMemShared_calloc(
+ trie->wordcount+1, sizeof(reg_trie_wordinfo));
+
DEBUG_r({
trie_words = newAV();
});
(int)TRIE_CHARCOUNT(trie), trie->uniquecharcount,
(int)trie->minlen, (int)trie->maxlen )
);
- trie->wordlen = (U32 *) PerlMemShared_calloc( word_count, sizeof(U32) );
/*
We now know what we are dealing with in terms of unique chars and
*/
+ Newx(prev_states, TRIE_CHARCOUNT(trie) + 2, U32);
+ prev_states[1] = 0;
+
if ( (IV)( ( TRIE_CHARCOUNT(trie) + 1 ) * trie->uniquecharcount + 1) > SvIV(re_trie_maxbuff) ) {
/*
Second Pass -- Array Of Lists Representation
}
if ( ! newstate ) {
newstate = next_alloc++;
+ prev_states[newstate] = state;
TRIE_LIST_PUSH( state, charid, newstate );
transcount++;
}
if ( !trie->trans[ state + charid ].next ) {
trie->trans[ state + charid ].next = next_alloc;
trie->trans[ state ].check++;
+ prev_states[TRIE_NODENUM(next_alloc)]
+ = TRIE_NODENUM(state);
next_alloc += trie->uniquecharcount;
}
state = trie->trans[ state + charid ].next;
PerlMemShared_realloc( trie->trans, trie->lasttrans
* sizeof(reg_trie_trans) );
- /* and now dump out the compressed format */
- DEBUG_TRIE_COMPILE_r(dump_trie(trie, widecharmap, revcharmap, depth+1));
-
{ /* Modify the program and insert the new TRIE node*/
U8 nodetype =(U8)(flags & 0xFF);
char *str=NULL;
break;
}
}
+ trie->prefixlen = (state-1);
if (str) {
regnode *n = convert+NODE_SZ_STR(convert);
NEXT_OFF(convert) = NODE_SZ_STR(convert);
Set_Node_Offset_Length(convert,mjd_offset,mjd_nodelen);
});
} /* end node insert */
+
+ /* Finish populating the prev field of the wordinfo array. Walk back
+ * from each accept state until we find another accept state, and if
+ * so, point the first word's .prev field at the second word. If the
+ * second already has a .prev field set, stop now. This will be the
+ * case either if we've already processed that word's accept state,
+ * or that that state had multiple words, and the overspill words
+ * were already linked up earlier.
+ */
+ {
+ U16 word;
+ U32 state;
+ U16 prev;
+
+ for (word=1; word <= trie->wordcount; word++) {
+ prev = 0;
+ if (trie->wordinfo[word].prev)
+ continue;
+ state = trie->wordinfo[word].accept;
+ while (state) {
+ state = prev_states[state];
+ if (!state)
+ break;
+ prev = trie->states[state].wordnum;
+ if (prev)
+ break;
+ }
+ trie->wordinfo[word].prev = prev;
+ }
+ Safefree(prev_states);
+ }
+
+
+ /* and now dump out the compressed format */
+ DEBUG_TRIE_COMPILE_r(dump_trie(trie, widecharmap, revcharmap, depth+1));
+
RExC_rxi->data->data[ data_slot + 1 ] = (void*)widecharmap;
#ifdef DEBUGGING
RExC_rxi->data->data[ data_slot + TRIE_WORDS_OFFSET ] = (void*)trie_words;
}
flags &= ~SCF_DO_STCLASS;
}
- else if (strchr((const char*)PL_varies,OP(scan))) {
+ else if (REGNODE_VARIES(OP(scan))) {
I32 mincount, maxcount, minnext, deltanext, fl = 0;
I32 f = flags, pos_before = 0;
regnode * const oscan = scan;
/* These are the cases when once a subexpression
fails at a particular position, it cannot succeed
even after backtracking at the enclosing scope.
-
+
XXXX what if minimal match and we are at the
initial run of {n,m}? */
if ((mincount != maxcount - 1) && (maxcount != REG_INFTY))
/* Skip open. */
nxt = regnext(nxt);
- if (!strchr((const char*)PL_simple,OP(nxt))
+ if (!REGNODE_SIMPLE(OP(nxt))
&& !(PL_regkind[OP(nxt)] == EXACT
&& STR_LEN(nxt) == 1))
goto nogo;
#ifdef DEBUGGING
OP(nxt1 + 1) = OPTIMIZED; /* was count. */
- NEXT_OFF(nxt1+ 1) = 0; /* just for consistancy. */
- NEXT_OFF(nxt2) = 0; /* just for consistancy with CURLY. */
+ NEXT_OFF(nxt1+ 1) = 0; /* just for consistency. */
+ NEXT_OFF(nxt2) = 0; /* just for consistency with CURLY. */
OP(nxt) = OPTIMIZED; /* was CLOSE. */
OP(nxt + 1) = OPTIMIZED; /* was count. */
- NEXT_OFF(nxt+ 1) = 0; /* just for consistancy. */
+ NEXT_OFF(nxt+ 1) = 0; /* just for consistency. */
#endif
}
nogo:
nxt = nxt2;
OP(nxt2) = SUCCEED; /* Whas WHILEM */
/* Need to optimize away parenths. */
- if (data->flags & SF_IN_PAR) {
+ if ((data->flags & SF_IN_PAR) && OP(nxt) == CLOSE) {
/* Set the parenth number. */
regnode *nxt1 = NEXTOPER(oscan) + EXTRA_STEP_2ARGS; /* OPEN*/
- if (OP(nxt) != CLOSE)
- FAIL("Panic opt close");
oscan->flags = (U8)ARG(nxt);
if (RExC_open_parens) {
RExC_open_parens[ARG(nxt1)-1]=oscan; /*open->CURLYM*/
#if 0
while ( nxt1 && (OP(nxt1) != WHILEM)) {
regnode *nnxt = regnext(nxt1);
-
if (nnxt == nxt) {
if (reg_off_by_arg[OP(nxt1)])
ARG_SET(nxt1, nxt2 - nxt1);
if (UTF)
old = utf8_hop((U8*)s, old) - (U8*)s;
-
l -= old;
/* Get the added string: */
last_str = newSVpvn_utf8(s + old, l, UTF);
if (flags & SCF_DO_STCLASS_AND) {
for (value = 0; value < 256; value++)
if (!is_VERTWS_cp(value))
- ANYOF_BITMAP_CLEAR(data->start_class, value);
- }
- else {
+ ANYOF_BITMAP_CLEAR(data->start_class, value);
+ }
+ else {
for (value = 0; value < 256; value++)
if (is_VERTWS_cp(value))
- ANYOF_BITMAP_SET(data->start_class, value);
- }
+ ANYOF_BITMAP_SET(data->start_class, value);
+ }
if (flags & SCF_DO_STCLASS_OR)
cl_and(data->start_class, and_withp);
flags &= ~SCF_DO_STCLASS;
data->pos_delta += 1;
data->longest = &(data->longest_float);
}
-
}
else if (OP(scan) == FOLDCHAR) {
int d = ARG(scan)==0xDF ? 1 : 2;
data->longest = &(data->longest_float);
}
}
- else if (strchr((const char*)PL_simple,OP(scan))) {
+ else if (REGNODE_SIMPLE(OP(scan))) {
int value = 0;
if (flags & SCF_DO_SUBSTR) {
if (flags & SCF_DO_STCLASS_AND) {
if (!(data->start_class->flags & ANYOF_LOCALE)) {
ANYOF_CLASS_CLEAR(data->start_class,ANYOF_NALNUM);
- for (value = 0; value < 256; value++)
- if (!isALNUM(value))
- ANYOF_BITMAP_CLEAR(data->start_class, value);
+ if (FLAGS(scan) & USE_UNI) {
+ for (value = 0; value < 256; value++) {
+ if (!isWORDCHAR_L1(value)) {
+ ANYOF_BITMAP_CLEAR(data->start_class, value);
+ }
+ }
+ } else {
+ for (value = 0; value < 256; value++) {
+ if (!isALNUM(value)) {
+ ANYOF_BITMAP_CLEAR(data->start_class, value);
+ }
+ }
+ }
}
}
else {
if (data->start_class->flags & ANYOF_LOCALE)
ANYOF_CLASS_SET(data->start_class,ANYOF_ALNUM);
- else {
- for (value = 0; value < 256; value++)
- if (isALNUM(value))
- ANYOF_BITMAP_SET(data->start_class, value);
- }
+ else if (FLAGS(scan) & USE_UNI) {
+ for (value = 0; value < 256; value++) {
+ if (isWORDCHAR_L1(value)) {
+ ANYOF_BITMAP_SET(data->start_class, value);
+ }
+ }
+ } else {
+ for (value = 0; value < 256; value++) {
+ if (isALNUM(value)) {
+ ANYOF_BITMAP_SET(data->start_class, value);
+ }
+ }
+ }
}
break;
case ALNUML:
if (flags & SCF_DO_STCLASS_AND) {
if (!(data->start_class->flags & ANYOF_LOCALE)) {
ANYOF_CLASS_CLEAR(data->start_class,ANYOF_ALNUM);
- for (value = 0; value < 256; value++)
- if (isALNUM(value))
- ANYOF_BITMAP_CLEAR(data->start_class, value);
+ if (FLAGS(scan) & USE_UNI) {
+ for (value = 0; value < 256; value++) {
+ if (isWORDCHAR_L1(value)) {
+ ANYOF_BITMAP_CLEAR(data->start_class, value);
+ }
+ }
+ } else {
+ for (value = 0; value < 256; value++) {
+ if (isALNUM(value)) {
+ ANYOF_BITMAP_CLEAR(data->start_class, value);
+ }
+ }
+ }
}
}
else {
else {
for (value = 0; value < 256; value++)
if (!isALNUM(value))
- ANYOF_BITMAP_SET(data->start_class, value);
+ ANYOF_BITMAP_SET(data->start_class, value);
}
}
break;
if (flags & SCF_DO_STCLASS_AND) {
if (!(data->start_class->flags & ANYOF_LOCALE)) {
ANYOF_CLASS_CLEAR(data->start_class,ANYOF_NSPACE);
- for (value = 0; value < 256; value++)
- if (!isSPACE(value))
- ANYOF_BITMAP_CLEAR(data->start_class, value);
+ if (FLAGS(scan) & USE_UNI) {
+ for (value = 0; value < 256; value++) {
+ if (!isSPACE_L1(value)) {
+ ANYOF_BITMAP_CLEAR(data->start_class, value);
+ }
+ }
+ } else {
+ for (value = 0; value < 256; value++) {
+ if (!isSPACE(value)) {
+ ANYOF_BITMAP_CLEAR(data->start_class, value);
+ }
+ }
+ }
}
}
else {
- if (data->start_class->flags & ANYOF_LOCALE)
+ if (data->start_class->flags & ANYOF_LOCALE) {
ANYOF_CLASS_SET(data->start_class,ANYOF_SPACE);
- else {
- for (value = 0; value < 256; value++)
- if (isSPACE(value))
- ANYOF_BITMAP_SET(data->start_class, value);
+ }
+ else if (FLAGS(scan) & USE_UNI) {
+ for (value = 0; value < 256; value++) {
+ if (isSPACE_L1(value)) {
+ ANYOF_BITMAP_SET(data->start_class, value);
+ }
+ }
+ } else {
+ for (value = 0; value < 256; value++) {
+ if (isSPACE(value)) {
+ ANYOF_BITMAP_SET(data->start_class, value);
+ }
+ }
}
}
break;
if (flags & SCF_DO_STCLASS_AND) {
if (!(data->start_class->flags & ANYOF_LOCALE)) {
ANYOF_CLASS_CLEAR(data->start_class,ANYOF_SPACE);
- for (value = 0; value < 256; value++)
- if (isSPACE(value))
- ANYOF_BITMAP_CLEAR(data->start_class, value);
+ if (FLAGS(scan) & USE_UNI) {
+ for (value = 0; value < 256; value++) {
+ if (isSPACE_L1(value)) {
+ ANYOF_BITMAP_CLEAR(data->start_class, value);
+ }
+ }
+ } else {
+ for (value = 0; value < 256; value++) {
+ if (isSPACE(value)) {
+ ANYOF_BITMAP_CLEAR(data->start_class, value);
+ }
+ }
+ }
}
}
else {
if (data->start_class->flags & ANYOF_LOCALE)
ANYOF_CLASS_SET(data->start_class,ANYOF_NSPACE);
- else {
- for (value = 0; value < 256; value++)
- if (!isSPACE(value))
- ANYOF_BITMAP_SET(data->start_class, value);
- }
+ else if (FLAGS(scan) & USE_UNI) {
+ for (value = 0; value < 256; value++) {
+ if (!isSPACE_L1(value)) {
+ ANYOF_BITMAP_SET(data->start_class, value);
+ }
+ }
+ }
+ else {
+ for (value = 0; value < 256; value++) {
+ if (!isSPACE(value)) {
+ ANYOF_BITMAP_SET(data->start_class, value);
+ }
+ }
+ }
}
break;
case NSPACEL:
else {
for (value = 0; value < 256; value++)
if (isDIGIT(value))
- ANYOF_BITMAP_SET(data->start_class, value);
+ ANYOF_BITMAP_SET(data->start_class, value);
}
}
break;
else {
for (value = 0; value < 256; value++)
if (!isDIGIT(value))
- ANYOF_BITMAP_SET(data->start_class, value);
+ ANYOF_BITMAP_SET(data->start_class, value);
}
}
break;
struct regexp *r;
register regexp_internal *ri;
STRLEN plen;
- char *exp = SvPV(pattern, plen);
- char* xend = exp + plen;
+ char *exp;
+ char* xend;
regnode *scan;
I32 flags;
I32 minlen = 0;
I32 sawplus = 0;
I32 sawopen = 0;
+ U8 jump_ret = 0;
+ dJMPENV;
scan_data_t data;
RExC_state_t RExC_state;
RExC_state_t * const pRExC_state = &RExC_state;
#ifdef TRIE_STUDY_OPT
- int restudied= 0;
+ int restudied;
RExC_state_t copyRExC_state;
#endif
GET_RE_DEBUG_FLAGS_DECL;
RExC_utf8 = RExC_orig_utf8 = SvUTF8(pattern);
- DEBUG_COMPILE_r({
- SV *dsv= sv_newmortal();
- RE_PV_QUOTED_DECL(s, RExC_utf8,
- dsv, exp, plen, 60);
- PerlIO_printf(Perl_debug_log, "%sCompiling REx%s %s\n",
- PL_colors[4],PL_colors[5],s);
- });
-redo_first_pass:
+ /* Longjmp back to here if have to switch in midstream to utf8 */
+ if (! RExC_orig_utf8) {
+ JMPENV_PUSH(jump_ret);
+ }
+
+ if (jump_ret == 0) { /* First time through */
+ exp = SvPV(pattern, plen);
+ xend = exp + plen;
+
+ DEBUG_COMPILE_r({
+ SV *dsv= sv_newmortal();
+ RE_PV_QUOTED_DECL(s, RExC_utf8,
+ dsv, exp, plen, 60);
+ PerlIO_printf(Perl_debug_log, "%sCompiling REx%s %s\n",
+ PL_colors[4],PL_colors[5],s);
+ });
+ }
+ else { /* longjumped back */
+ STRLEN len = plen;
+
+ /* If the cause for the longjmp was other than changing to utf8, pop
+ * our own setjmp, and longjmp to the correct handler */
+ if (jump_ret != UTF8_LONGJMP) {
+ JMPENV_POP;
+ JMPENV_JUMP(jump_ret);
+ }
+
+ GET_RE_DEBUG_FLAGS;
+
+ /* It's possible to write a regexp in ascii that represents Unicode
+ codepoints outside of the byte range, such as via \x{100}. If we
+ detect such a sequence we have to convert the entire pattern to utf8
+ and then recompile, as our sizing calculation will have been based
+ on 1 byte == 1 character, but we will need to use utf8 to encode
+ at least some part of the pattern, and therefore must convert the whole
+ thing.
+ -- dmq */
+ DEBUG_PARSE_r(PerlIO_printf(Perl_debug_log,
+ "UTF8 mismatch! Converting to utf8 for resizing and compile\n"));
+ exp = (char*)Perl_bytes_to_utf8(aTHX_ (U8*)SvPV(pattern, plen), &len);
+ xend = exp + len;
+ RExC_orig_utf8 = RExC_utf8 = 1;
+ SAVEFREEPV(exp);
+ }
+
+#ifdef TRIE_STUDY_OPT
+ restudied = 0;
+#endif
+
RExC_precomp = exp;
RExC_flags = pm_flags;
RExC_sawback = 0;
RExC_precomp = NULL;
return(NULL);
}
- if (RExC_utf8 && !RExC_orig_utf8) {
- /* It's possible to write a regexp in ascii that represents Unicode
- codepoints outside of the byte range, such as via \x{100}. If we
- detect such a sequence we have to convert the entire pattern to utf8
- and then recompile, as our sizing calculation will have been based
- on 1 byte == 1 character, but we will need to use utf8 to encode
- at least some part of the pattern, and therefore must convert the whole
- thing.
- XXX: somehow figure out how to make this less expensive...
- -- dmq */
- STRLEN len = plen;
- DEBUG_PARSE_r(PerlIO_printf(Perl_debug_log,
- "UTF8 mismatch! Converting to utf8 for resizing and compile\n"));
- exp = (char*)Perl_bytes_to_utf8(aTHX_ (U8*)exp, &len);
- xend = exp + len;
- RExC_orig_utf8 = RExC_utf8;
- SAVEFREEPV(exp);
- goto redo_first_pass;
+
+ /* Here, finished first pass. Get rid of our setjmp, which we added for
+ * efficiency only if the passed-in string wasn't in utf8, as shown by
+ * RExC_orig_utf8. But if the first pass was redone, that variable will be
+ * 1 here even though the original string wasn't utf8, but in this case
+ * there will have been a long jump */
+ if (jump_ret == UTF8_LONGJMP || ! RExC_orig_utf8) {
+ JMPENV_POP;
}
DEBUG_PARSE_r({
PerlIO_printf(Perl_debug_log,
r->extflags = pm_flags;
{
bool has_p = ((r->extflags & RXf_PMf_KEEPCOPY) == RXf_PMf_KEEPCOPY);
- bool has_minus = ((r->extflags & RXf_PMf_STD_PMMOD) != RXf_PMf_STD_PMMOD);
+ bool has_charset = cBOOL(r->extflags & (RXf_PMf_LOCALE|RXf_PMf_UNICODE));
+
+ /* The caret is output if there are any defaults: if not all the STD
+ * flags are set, or if no character set specifier is needed */
+ bool has_default =
+ (((r->extflags & RXf_PMf_STD_PMMOD) != RXf_PMf_STD_PMMOD)
+ || ! has_charset);
bool has_runon = ((RExC_seen & REG_SEEN_RUN_ON_COMMENT)==REG_SEEN_RUN_ON_COMMENT);
U16 reganch = (U16)((r->extflags & RXf_PMf_STD_PMMOD)
>> RXf_PMf_STD_PMMOD_SHIFT);
const char *fptr = STD_PAT_MODS; /*"msix"*/
char *p;
- const STRLEN wraplen = plen + has_minus + has_p + has_runon
+ /* Allocate for the worst case, which is all the std flags are turned
+ * on. If more precision is desired, we could do a population count of
+ * the flags set. This could be done with a small lookup table, or by
+ * shifting, masking and adding, or even, when available, assembly
+ * language for a machine-language population count.
+ * We never output a minus, as all those are defaults, so are
+ * covered by the caret */
+ const STRLEN wraplen = plen + has_p + has_runon
+ + has_default /* If needs a caret */
+ + has_charset /* If needs a character set specifier */
+ (sizeof(STD_PAT_MODS) - 1)
+ (sizeof("(?:)") - 1);
- p = sv_grow(MUTABLE_SV(rx), wraplen + 1);
- SvCUR_set(rx, wraplen);
+ p = sv_grow(MUTABLE_SV(rx), wraplen + 1); /* +1 for the ending NUL */
SvPOK_on(rx);
SvFLAGS(rx) |= SvUTF8(pattern);
*p++='('; *p++='?';
+
+ /* If a default, cover it using the caret */
+ if (has_default) {
+ *p++= DEFAULT_PAT_MOD;
+ }
+ if (has_charset) {
+ if (r->extflags & RXf_PMf_LOCALE) {
+ *p++ = LOCALE_PAT_MOD;
+ } else {
+ *p++ = UNICODE_PAT_MOD;
+ }
+ }
if (has_p)
*p++ = KEEPCOPY_PAT_MOD; /*'p'*/
{
- char *r = p + (sizeof(STD_PAT_MODS) - 1) + has_minus - 1;
- char *colon = r + 1;
char ch;
-
while((ch = *fptr++)) {
if(reganch & 1)
*p++ = ch;
- else
- *r-- = ch;
reganch >>= 1;
}
- if(has_minus) {
- *r = '-';
- p = colon;
- }
}
*p++ = ':';
*p++ = '\n';
*p++ = ')';
*p = 0;
+ SvCUR_set(rx, p - SvPVX_const(rx));
}
r->intflags = 0;
ri->regstclass = trie_op;
}
#endif
- else if (strchr((const char*)PL_simple,OP(first)))
+ else if (REGNODE_SIMPLE(OP(first)))
ri->regstclass = first;
else if (PL_regkind[OP(first)] == BOUND ||
PL_regkind[OP(first)] == NBOUND)
#endif
#ifdef DEBUGGING
if (RExC_paren_names) {
- ri->name_list_idx = add_data( pRExC_state, 1, "p" );
+ ri->name_list_idx = add_data( pRExC_state, 1, "a" );
ri->data->data[ri->name_list_idx] = (void*)SvREFCNT_inc(RExC_paren_name_list);
} else
#endif
if (flags & RXapif_FETCH) {
return reg_named_buff_fetch(rx, key, flags);
} else if (flags & (RXapif_STORE | RXapif_DELETE | RXapif_CLEAR)) {
- Perl_croak(aTHX_ "%s", PL_no_modify);
+ Perl_croak_no_modify(aTHX);
return NULL;
} else if (flags & RXapif_EXISTS) {
return reg_named_buff_exists(rx, key, flags)
PERL_UNUSED_ARG(value);
if (!PL_localizing)
- Perl_croak(aTHX_ "%s", PL_no_modify);
+ Perl_croak_no_modify(aTHX);
}
I32
if (*RExC_parse == '?') { /* (?...) */
bool is_logical = 0;
const char * const seqstart = RExC_parse;
+ bool has_use_defaults = FALSE;
RExC_parse++;
paren = *RExC_parse++;
RExC_parse++;
case '=': /* (?=...) */
RExC_seen_zerolen++;
- break;
+ break;
case '!': /* (?!...) */
RExC_seen_zerolen++;
if (*RExC_parse == ')') {
RExC_parse--; /* for vFAIL to print correctly */
vFAIL("Sequence (? incomplete");
break;
+ case DEFAULT_PAT_MOD: /* Use default flags with the exceptions
+ that follow */
+ has_use_defaults = TRUE;
+ STD_PMMOD_FLAGS_CLEAR(&RExC_flags);
+ RExC_flags &= ~(RXf_PMf_LOCALE|RXf_PMf_UNICODE);
+ goto parse_flags;
default:
--RExC_parse;
parse_flags: /* (?i) */
{
U32 posflags = 0, negflags = 0;
U32 *flagsp = &posflags;
+ bool has_charset_modifier = 0;
while (*RExC_parse) {
/* && strchr("iogcmsx", *RExC_parse) */
and must be globally applied -- japhy */
switch (*RExC_parse) {
CASE_STD_PMMOD_FLAGS_PARSE_SET(flagsp);
+ case LOCALE_PAT_MOD:
+ if (has_charset_modifier || flagsp == &negflags) {
+ goto fail_modifiers;
+ }
+ *flagsp &= ~RXf_PMf_UNICODE;
+ *flagsp |= RXf_PMf_LOCALE;
+ has_charset_modifier = 1;
+ break;
+ case UNICODE_PAT_MOD:
+ if (has_charset_modifier || flagsp == &negflags) {
+ goto fail_modifiers;
+ }
+ *flagsp &= ~RXf_PMf_LOCALE;
+ *flagsp |= RXf_PMf_UNICODE;
+ has_charset_modifier = 1;
+ break;
+ case DUAL_PAT_MOD:
+ if (has_use_defaults
+ || has_charset_modifier
+ || flagsp == &negflags)
+ {
+ goto fail_modifiers;
+ }
+ *flagsp &= ~(RXf_PMf_LOCALE|RXf_PMf_UNICODE);
+ has_charset_modifier = 1;
+ break;
case ONCE_PAT_MOD: /* 'o' */
case GLOBAL_PAT_MOD: /* 'g' */
if (SIZE_ONLY && ckWARN(WARN_REGEXP)) {
}
break;
case '-':
- if (flagsp == &negflags) {
+ /* A flag is a default iff it is following a minus, so
+ * if there is a minus, it means will be trying to
+ * re-specify a default which is an error */
+ if (has_use_defaults || flagsp == &negflags) {
+ fail_modifiers:
RExC_parse++;
vFAIL3("Sequence (%.*s...) not recognized", RExC_parse-seqstart, seqstart);
/*NOTREACHED*/
return (regnode *) &RExC_parse; /* Invalid regnode pointer */
}
- RExC_utf8 = 1; /* named sequences imply Unicode semantics */
+ REQUIRE_UTF8; /* named sequences imply Unicode semantics */
RExC_parse += 2; /* Skip past the 'U+' */
if (valuep) { /* In a bracketed char class */
| PERL_SCAN_DISALLOW_PREFIX
| (SIZE_ONLY ? PERL_SCAN_SILENT_ILLDIGIT : 0);
- char * endchar = strchr(RExC_parse, '.');
- if (endchar) {
+ char * endchar = RExC_parse + strcspn(RExC_parse, ".}");
+ if (endchar < endbrace) {
ckWARNreg(endchar, "Using just the first character returned by \\N{} in character class");
}
- else endchar = endbrace;
length_of_hex = (STRLEN)(endchar - RExC_parse);
*valuep = grok_hex(RExC_parse, &length_of_hex, &flags, NULL);
}
else { /* Not a char class */
char *s; /* String to put in generated EXACT node */
- STRLEN len = 0; /* Its current length */
+ STRLEN len = 0; /* Its current byte length */
char *endchar; /* Points to '.' or '}' ending cur char in the input
stream */
/* Exact nodes can hold only a U8 length's of text = 255. Loop through
* the input which is of the form now 'c1.c2.c3...}' until find the
- * ending brace or exeed length 255. The characters that exceed this
+ * ending brace or exceed length 255. The characters that exceed this
* limit are dropped. The limit could be relaxed should it become
* desirable by reparsing this as (?:\N{NAME}), so could generate
* multiple EXACT nodes, as is done for just regular input. But this
/* Code points are separated by dots. If none, there is only one
* code point, and is terminated by the brace */
- endchar = strchr(RExC_parse, '.');
- if (! endchar) endchar = endbrace;
+ endchar = RExC_parse + strcspn(RExC_parse, ".}");
/* The values are Unicode even on EBCDIC machines */
length_of_hex = (STRLEN)(endchar - RExC_parse);
*flagp |= HASWIDTH;
goto finish_meta_pat;
case 'w':
- ret = reg_node(pRExC_state, (U8)(LOC ? ALNUML : ALNUM));
+ if (LOC) {
+ ret = reg_node(pRExC_state, (U8)(ALNUML));
+ } else {
+ ret = reg_node(pRExC_state, (U8)(ALNUM));
+ FLAGS(ret) = (UNI_SEMANTICS) ? USE_UNI : 0;
+ }
*flagp |= HASWIDTH|SIMPLE;
goto finish_meta_pat;
case 'W':
- ret = reg_node(pRExC_state, (U8)(LOC ? NALNUML : NALNUM));
+ if (LOC) {
+ ret = reg_node(pRExC_state, (U8)(NALNUML));
+ } else {
+ ret = reg_node(pRExC_state, (U8)(NALNUM));
+ FLAGS(ret) = (UNI_SEMANTICS) ? USE_UNI : 0;
+ }
*flagp |= HASWIDTH|SIMPLE;
goto finish_meta_pat;
case 'b':
RExC_seen_zerolen++;
RExC_seen |= REG_SEEN_LOOKBEHIND;
- ret = reg_node(pRExC_state, (U8)(LOC ? BOUNDL : BOUND));
+ if (LOC) {
+ ret = reg_node(pRExC_state, (U8)(BOUNDL));
+ } else {
+ ret = reg_node(pRExC_state, (U8)(BOUND));
+ FLAGS(ret) = (UNI_SEMANTICS) ? USE_UNI : 0;
+ }
*flagp |= SIMPLE;
goto finish_meta_pat;
case 'B':
RExC_seen_zerolen++;
RExC_seen |= REG_SEEN_LOOKBEHIND;
- ret = reg_node(pRExC_state, (U8)(LOC ? NBOUNDL : NBOUND));
+ if (LOC) {
+ ret = reg_node(pRExC_state, (U8)(NBOUNDL));
+ } else {
+ ret = reg_node(pRExC_state, (U8)(NBOUND));
+ FLAGS(ret) = (UNI_SEMANTICS) ? USE_UNI : 0;
+ }
*flagp |= SIMPLE;
goto finish_meta_pat;
case 's':
- ret = reg_node(pRExC_state, (U8)(LOC ? SPACEL : SPACE));
+ if (LOC) {
+ ret = reg_node(pRExC_state, (U8)(SPACEL));
+ } else {
+ ret = reg_node(pRExC_state, (U8)(SPACE));
+ FLAGS(ret) = (UNI_SEMANTICS) ? USE_UNI : 0;
+ }
*flagp |= HASWIDTH|SIMPLE;
goto finish_meta_pat;
case 'S':
- ret = reg_node(pRExC_state, (U8)(LOC ? NSPACEL : NSPACE));
+ if (LOC) {
+ ret = reg_node(pRExC_state, (U8)(NSPACEL));
+ } else {
+ ret = reg_node(pRExC_state, (U8)(NSPACE));
+ FLAGS(ret) = (UNI_SEMANTICS) ? USE_UNI : 0;
+ }
*flagp |= HASWIDTH|SIMPLE;
goto finish_meta_pat;
case 'd':
ender = ASCII_TO_NATIVE('\007');
p++;
break;
+ case 'o':
+ {
+ STRLEN brace_len = len;
+ UV result;
+ const char* error_msg;
+
+ bool valid = grok_bslash_o(p,
+ &result,
+ &brace_len,
+ &error_msg,
+ 1);
+ p += brace_len;
+ if (! valid) {
+ RExC_parse = p; /* going to die anyway; point
+ to exact spot of failure */
+ vFAIL(error_msg);
+ }
+ else
+ {
+ ender = result;
+ }
+ if (PL_encoding && ender < 0x100) {
+ goto recode_encoding;
+ }
+ if (ender > 0xff) {
+ REQUIRE_UTF8;
+ }
+ break;
+ }
case 'x':
if (*++p == '{') {
char* const e = strchr(p, '}');
STRLEN numlen = e - p - 1;
ender = grok_hex(p + 1, &numlen, &flags, NULL);
if (ender > 0xff)
- RExC_utf8 = 1;
+ REQUIRE_UTF8;
p = e + 1;
}
}
case '0': case '1': case '2': case '3':case '4':
case '5': case '6': case '7': case '8':case '9':
if (*p == '0' ||
- (isDIGIT(p[1]) && atoi(p) >= RExC_npar) ) {
- I32 flags = 0;
+ (isDIGIT(p[1]) && atoi(p) >= RExC_npar))
+ {
+ I32 flags = PERL_SCAN_SILENT_ILLDIGIT;
STRLEN numlen = 3;
ender = grok_oct(p, &numlen, &flags, NULL);
-
- /* An octal above 0xff is interpreted differently
- * depending on if the re is in utf8 or not. If it
- * is in utf8, the value will be itself, otherwise
- * it is interpreted as modulo 0x100. It has been
- * decided to discourage the use of octal above the
- * single-byte range. For now, warn only when
- * it ends up modulo */
- if (SIZE_ONLY && ender >= 0x100
- && ! UTF && ! PL_encoding) {
- ckWARNregdep(p, "Use of octal value above 377 is deprecated");
+ if (ender > 0xff) {
+ REQUIRE_UTF8;
}
p += numlen;
}
ender = reg_recode((const char)(U8)ender, &enc);
if (!enc && SIZE_ONLY)
ckWARNreg(p, "Invalid escape in the specified encoding");
- RExC_utf8 = 1;
+ REQUIRE_UTF8;
}
break;
case '\0':
what = WORD; \
break
+/* Like above, but no locale test */
#define _C_C_T_NOLOC_(NAME,TEST,WORD) \
ANYOF_##NAME: \
for (value = 0; value < 256; value++) \
what = WORD; \
break
+/* Like the above, but there are differences if we are in uni-8-bit or not, so
+ * there are two tests passed in, to use depending on that. There aren't any
+ * cases where the label is different from the name, so no need for that
+ * parameter */
+#define _C_C_T_UNI_8_BIT(NAME,TEST_8,TEST_7,WORD) \
+ANYOF_##NAME: \
+ if (LOC) ANYOF_CLASS_SET(ret, ANYOF_##NAME); \
+ else if (UNI_SEMANTICS) { \
+ for (value = 0; value < 256; value++) { \
+ if (TEST_8) ANYOF_BITMAP_SET(ret, value); \
+ } \
+ } \
+ else { \
+ for (value = 0; value < 256; value++) { \
+ if (TEST_7) ANYOF_BITMAP_SET(ret, value); \
+ } \
+ } \
+ yesno = '+'; \
+ what = WORD; \
+ break; \
+case ANYOF_N##NAME: \
+ if (LOC) ANYOF_CLASS_SET(ret, ANYOF_N##NAME); \
+ else if (UNI_SEMANTICS) { \
+ for (value = 0; value < 256; value++) { \
+ if (! TEST_8) ANYOF_BITMAP_SET(ret, value); \
+ } \
+ } \
+ else { \
+ for (value = 0; value < 256; value++) { \
+ if (! TEST_7) ANYOF_BITMAP_SET(ret, value); \
+ } \
+ } \
+ yesno = '!'; \
+ what = WORD; \
+ break
+
/*
We dont use PERL_LEGACY_UNICODE_CHARCLASS_MAPPINGS as the direct test
so that it is possible to override the option here without having to
case 'b': value = '\b'; break;
case 'e': value = ASCII_TO_NATIVE('\033');break;
case 'a': value = ASCII_TO_NATIVE('\007');break;
+ case 'o':
+ RExC_parse--; /* function expects to be pointed at the 'o' */
+ {
+ const char* error_msg;
+ bool valid = grok_bslash_o(RExC_parse,
+ &value,
+ &numlen,
+ &error_msg,
+ SIZE_ONLY);
+ RExC_parse += numlen;
+ if (! valid) {
+ vFAIL(error_msg);
+ }
+ }
+ if (PL_encoding && value < 0x100) {
+ goto recode_encoding;
+ }
+ break;
case 'x':
if (*RExC_parse == '{') {
I32 flags = PERL_SCAN_ALLOW_UNDERSCORES
value = grok_bslash_c(*RExC_parse++, SIZE_ONLY);
break;
case '0': case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9':
+ case '5': case '6': case '7':
{
- I32 flags = 0;
+ /* Take 1-3 octal digits */
+ I32 flags = PERL_SCAN_SILENT_ILLDIGIT;
numlen = 3;
value = grok_oct(--RExC_parse, &numlen, &flags, NULL);
RExC_parse += numlen;
break;
}
default:
- if (!SIZE_ONLY && isALPHA(value))
+ /* Allow \_ to not give an error */
+ if (!SIZE_ONLY && isALNUM(value) && value != '_') {
ckWARN2reg(RExC_parse,
"Unrecognized escape \\%c in character class passed through",
(int)value);
+ }
break;
}
} /* end of \blah */
case _C_C_T_(PUNCT, isPUNCT(value), POSIX_CC_UNI_NAME("Punct"));
case _C_C_T_(UPPER, isUPPER(value), POSIX_CC_UNI_NAME("Upper"));
#ifdef BROKEN_UNICODE_CHARCLASS_MAPPINGS
- case _C_C_T_(ALNUM, isALNUM(value), "Word");
- case _C_C_T_(SPACE, isSPACE(value), "SpacePerl");
+ /* \s, \w match all unicode if utf8. */
+ case _C_C_T_UNI_8_BIT(SPACE, isSPACE_L1(value), isSPACE(value), "SpacePerl");
+ case _C_C_T_UNI_8_BIT(ALNUM, isWORDCHAR_L1(value), isALNUM(value), "Word");
#else
- case _C_C_T_(SPACE, isSPACE(value), "PerlSpace");
- case _C_C_T_(ALNUM, isALNUM(value), "PerlWord");
+ /* \s, \w match ascii and locale only */
+ case _C_C_T_UNI_8_BIT(SPACE, isSPACE_L1(value), isSPACE(value), "PerlSpace");
+ case _C_C_T_UNI_8_BIT(ALNUM, isWORDCHAR_L1(value), isALNUM(value), "PerlWord");
#endif
case _C_C_T_(XDIGIT, isXDIGIT(value), "XDigit");
case _C_C_T_NOLOC_(VERTWS, is_VERTWS_latin1(&value), "VertSpace");
#endif
/*
- - regcurly - a little FSA that accepts {\d+,?\d*}
- */
-#ifndef PERL_IN_XSUB_RE
-I32
-Perl_regcurly(register const char *s)
-{
- PERL_ARGS_ASSERT_REGCURLY;
-
- if (*s++ != '{')
- return FALSE;
- if (!isDIGIT(*s))
- return FALSE;
- while (isDIGIT(*s))
- s++;
- if (*s == ',')
- s++;
- while (isDIGIT(*s))
- s++;
- if (*s != '}')
- return FALSE;
- return TRUE;
-}
-#endif
-
-/*
- regdump - dump a regexp onto Perl_debug_log in vaguely comprehensible form
*/
#ifdef DEBUGGING
while (--n >= 0) {
/* If you add a ->what type here, update the comment in regcomp.h */
switch (ri->data->what[n]) {
+ case 'a':
case 's':
case 'S':
case 'u':
PerlMemShared_free(trie->trans);
if (trie->bitmap)
PerlMemShared_free(trie->bitmap);
- if (trie->wordlen)
- PerlMemShared_free(trie->wordlen);
if (trie->jump)
PerlMemShared_free(trie->jump);
- if (trie->nextword)
- PerlMemShared_free(trie->nextword);
+ PerlMemShared_free(trie->wordinfo);
/* do this last!!!! */
PerlMemShared_free(ri->data->data[n]);
}
Safefree(ri);
}
-#define sv_dup_inc(s,t) SvREFCNT_inc(sv_dup(s,t))
-#define av_dup_inc(s,t) MUTABLE_AV(SvREFCNT_inc(sv_dup((const SV *)s,t)))
-#define hv_dup_inc(s,t) MUTABLE_HV(SvREFCNT_inc(sv_dup((const SV *)s,t)))
+#define av_dup_inc(s,t) MUTABLE_AV(sv_dup_inc((const SV *)s,t))
+#define hv_dup_inc(s,t) MUTABLE_HV(sv_dup_inc((const SV *)s,t))
#define SAVEPVN(p,n) ((p) ? savepvn(p,n) : NULL)
/*
for (i = 0; i < count; i++) {
d->what[i] = ri->data->what[i];
switch (d->what[i]) {
- /* legal options are one of: sSfpontTu
+ /* legal options are one of: sSfpontTua
see also regcomp.h and pregfree() */
+ case 'a': /* actually an AV, but the dup function is identical. */
case 's':
case 'S':
case 'p': /* actually an AV, but the dup function is identical. */
if (!p)
return(NULL);
+ if (OP(p) > REGNODE_MAX) { /* regnode.type is unsigned */
+ Perl_croak(aTHX_ "Corrupted regexp opcode %d > %d", (int)OP(p), (int)REGNODE_MAX);
+ }
+
offset = (reg_off_by_arg[OP(p)] ? ARG(p) : NEXT_OFF(p));
if (offset == 0)
return(NULL);
https://perl5.git.perl.org / perl5.git / blobdiff