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regcomp_debug.c
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#ifdef PERL_EXT_RE_BUILD
#include "re_top.h"
#endif
#include "EXTERN.h"
#define PERL_IN_REGEX_ENGINE
#define PERL_IN_REGCOMP_ANY
#define PERL_IN_REGCOMP_DEBUG_C
#include "perl.h"
#ifdef PERL_IN_XSUB_RE
# include "re_comp.h"
#else
# include "regcomp.h"
#endif
#include "invlist_inline.h"
#include "unicode_constants.h"
#include "regcomp_internal.h"
#ifdef PERL_RE_BUILD_DEBUG
int
Perl_re_printf(pTHX_ const char *fmt, ...)
{
va_list ap;
int result;
PerlIO *f= Perl_debug_log;
PERL_ARGS_ASSERT_RE_PRINTF;
va_start(ap, fmt);
result = PerlIO_vprintf(f, fmt, ap);
va_end(ap);
return result;
}
int
Perl_re_indentf(pTHX_ const char *fmt, U32 depth, ...)
{
va_list ap;
int result;
PerlIO *f= Perl_debug_log;
PERL_ARGS_ASSERT_RE_INDENTF;
va_start(ap, depth);
PerlIO_printf(f, "%*s", ( (int)depth % 20 ) * 2, "");
result = PerlIO_vprintf(f, fmt, ap);
va_end(ap);
return result;
}
void
Perl_debug_show_study_flags(pTHX_ U32 flags, const char *open_str,
const char *close_str)
{
PERL_ARGS_ASSERT_DEBUG_SHOW_STUDY_FLAGS;
if (!flags)
return;
Perl_re_printf( aTHX_ "%s", open_str);
DEBUG_SHOW_STUDY_FLAG(flags, SF_BEFORE_SEOL);
DEBUG_SHOW_STUDY_FLAG(flags, SF_BEFORE_MEOL);
DEBUG_SHOW_STUDY_FLAG(flags, SF_IS_INF);
DEBUG_SHOW_STUDY_FLAG(flags, SF_HAS_PAR);
DEBUG_SHOW_STUDY_FLAG(flags, SF_IN_PAR);
DEBUG_SHOW_STUDY_FLAG(flags, SF_HAS_EVAL);
DEBUG_SHOW_STUDY_FLAG(flags, SCF_DO_SUBSTR);
DEBUG_SHOW_STUDY_FLAG(flags, SCF_DO_STCLASS_AND);
DEBUG_SHOW_STUDY_FLAG(flags, SCF_DO_STCLASS_OR);
DEBUG_SHOW_STUDY_FLAG(flags, SCF_DO_STCLASS);
DEBUG_SHOW_STUDY_FLAG(flags, SCF_WHILEM_VISITED_POS);
DEBUG_SHOW_STUDY_FLAG(flags, SCF_TRIE_RESTUDY);
DEBUG_SHOW_STUDY_FLAG(flags, SCF_SEEN_ACCEPT);
DEBUG_SHOW_STUDY_FLAG(flags, SCF_TRIE_DOING_RESTUDY);
DEBUG_SHOW_STUDY_FLAG(flags, SCF_IN_DEFINE);
Perl_re_printf( aTHX_ "%s", close_str);
}
void
Perl_debug_studydata(pTHX_ const char *where, scan_data_t *data,
U32 depth, int is_inf,
SSize_t min, SSize_t stopmin, SSize_t delta)
{
PERL_ARGS_ASSERT_DEBUG_STUDYDATA;
DECLARE_AND_GET_RE_DEBUG_FLAGS;
DEBUG_OPTIMISE_MORE_r({
if (!data) {
Perl_re_indentf(aTHX_ "%s: NO DATA",
depth,
where);
return;
}
Perl_re_indentf(aTHX_ "%s: M/S/D: %" IVdf "/%" IVdf "/%" IVdf " Pos:%" IVdf "/%" IVdf " Flags: 0x%" UVXf,
depth,
where,
min, stopmin, delta,
(IV)data->pos_min,
(IV)data->pos_delta,
(UV)data->flags
);
Perl_debug_show_study_flags(aTHX_ data->flags," [","]");
Perl_re_printf( aTHX_
" Whilem_c: %" IVdf " Lcp: %" IVdf " %s",
(IV)data->whilem_c,
(IV)(data->last_closep ? *((data)->last_closep) : -1),
is_inf ? "INF " : ""
);
if (data->last_found) {
int i;
Perl_re_printf(aTHX_
"Last:'%s' %" IVdf ":%" IVdf "/%" IVdf,
SvPVX_const(data->last_found),
(IV)data->last_end,
(IV)data->last_start_min,
(IV)data->last_start_max
);
for (i = 0; i < 2; i++) {
Perl_re_printf(aTHX_
" %s%s: '%s' @ %" IVdf "/%" IVdf,
data->cur_is_floating == i ? "*" : "",
i ? "Float" : "Fixed",
SvPVX_const(data->substrs[i].str),
(IV)data->substrs[i].min_offset,
(IV)data->substrs[i].max_offset
);
Perl_debug_show_study_flags(aTHX_ data->substrs[i].flags," [","]");
}
}
Perl_re_printf( aTHX_ "\n");
});
}
void
Perl_debug_peep(pTHX_ const char *str, const RExC_state_t *pRExC_state,
regnode *scan, U32 depth, U32 flags)
{
PERL_ARGS_ASSERT_DEBUG_PEEP;
DECLARE_AND_GET_RE_DEBUG_FLAGS;
DEBUG_OPTIMISE_r({
regnode *Next;
if (!scan)
return;
Next = regnext(scan);
regprop(RExC_rx, RExC_mysv, scan, NULL, pRExC_state);
Perl_re_indentf( aTHX_ "%s>%3d: %s (%d)",
depth,
str,
REG_NODE_NUM(scan), SvPV_nolen_const(RExC_mysv),
Next ? (REG_NODE_NUM(Next)) : 0 );
Perl_debug_show_study_flags(aTHX_ flags," [ ","]");
Perl_re_printf( aTHX_ "\n");
});
}
const regnode *
Perl_dumpuntil(pTHX_ const regexp *r, const regnode *start, const regnode *node,
const regnode *last, const regnode *plast,
SV* sv, I32 indent, U32 depth)
{
const regnode *next;
const regnode *optstart= NULL;
RXi_GET_DECL(r, ri);
DECLARE_AND_GET_RE_DEBUG_FLAGS;
PERL_ARGS_ASSERT_DUMPUNTIL;
#ifdef DEBUG_DUMPUNTIL
Perl_re_printf( aTHX_ "--- %d : %d - %d - %d\n", indent, node-start,
last ? last-start : 0, plast ? plast-start : 0);
#endif
if (plast && plast < last)
last = plast;
while (node && (!last || node < last)) {
const U8 op = OP(node);
if (op == CLOSE || op == SRCLOSE || op == WHILEM)
indent--;
next = regnext((regnode *)node);
const regnode *after = regnode_after((regnode *)node,0);
/* Where, what. */
if (op == OPTIMIZED) {
if (!optstart && RE_DEBUG_FLAG(RE_DEBUG_COMPILE_OPTIMISE))
optstart = node;
else
goto after_print;
} else
CLEAR_OPTSTART;
regprop(r, sv, node, NULL, NULL);
Perl_re_printf( aTHX_ "%4" IVdf ":%*s%s", (IV)(node - start),
(int)(2*indent + 1), "", SvPVX_const(sv));
if (op != OPTIMIZED) {
if (next == NULL) /* Next ptr. */
Perl_re_printf( aTHX_ " (0)");
else if (REGNODE_TYPE(op) == BRANCH
&& REGNODE_TYPE(OP(next)) != BRANCH )
Perl_re_printf( aTHX_ " (FAIL)");
else
Perl_re_printf( aTHX_ " (%" IVdf ")", (IV)(next - start));
Perl_re_printf( aTHX_ "\n");
}
after_print:
if (REGNODE_TYPE(op) == BRANCHJ) {
assert(next);
const regnode *nnode = (OP(next) == LONGJMP
? regnext((regnode *)next)
: next);
if (last && nnode > last)
nnode = last;
DUMPUNTIL(after, nnode);
}
else if (REGNODE_TYPE(op) == BRANCH) {
assert(next);
DUMPUNTIL(after, next);
}
else if ( REGNODE_TYPE(op) == TRIE ) {
const regnode *this_trie = node;
const U32 n = ARG1u(node);
const reg_ac_data * const ac = op >= AHOCORASICK ?
(reg_ac_data *)ri->data->data[n] :
NULL;
const reg_trie_data * const trie =
(reg_trie_data*)ri->data->data[op < AHOCORASICK ? n : ac->trie];
#ifdef DEBUGGING
AV *const trie_words
= MUTABLE_AV(ri->data->data[n + TRIE_WORDS_OFFSET]);
#endif
const regnode *nextbranch= NULL;
I32 word_idx;
SvPVCLEAR(sv);
for (word_idx= 0; word_idx < (I32)trie->wordcount; word_idx++) {
SV ** const elem_ptr = av_fetch_simple(trie_words, word_idx, 0);
Perl_re_indentf( aTHX_ "%s ",
indent+3,
elem_ptr
? pv_pretty(sv, SvPV_nolen_const(*elem_ptr),
SvCUR(*elem_ptr), PL_dump_re_max_len,
PL_colors[0], PL_colors[1],
(SvUTF8(*elem_ptr)
? PERL_PV_ESCAPE_UNI
: 0)
| PERL_PV_PRETTY_ELLIPSES
| PERL_PV_PRETTY_LTGT
)
: "???"
);
if (trie->jump) {
U16 dist = trie->jump[word_idx+1];
Perl_re_printf( aTHX_ "(%" UVuf ")\n",
(UV)((dist ? this_trie + dist : next) - start));
if (dist) {
if (!nextbranch)
nextbranch = this_trie + trie->jump[0];
DUMPUNTIL(this_trie + dist, nextbranch);
}
if (nextbranch && REGNODE_TYPE(OP(nextbranch))==BRANCH)
nextbranch = regnext((regnode *)nextbranch);
} else {
Perl_re_printf( aTHX_ "\n");
}
}
if (last && next > last)
node = last;
else
node = next;
}
else if ( op == CURLY ) { /* "next" might be very big: optimizer */
DUMPUNTIL(after, after + 1); /* +1 is NOT a REGNODE_AFTER */
}
else if (REGNODE_TYPE(op) == CURLY && op != CURLYX) {
assert(next);
DUMPUNTIL(after, next);
}
else if ( op == PLUS || op == STAR) {
DUMPUNTIL(after, after + 1); /* +1 NOT a REGNODE_AFTER */
}
else if (REGNODE_TYPE(op) == EXACT || op == ANYOFHs) {
/* Literal string, where present. */
node = (const regnode *)REGNODE_AFTER_varies(node);
}
else {
node = REGNODE_AFTER_opcode(node,op);
}
if (op == CURLYX || op == OPEN || op == SROPEN)
indent++;
if (REGNODE_TYPE(op) == END)
break;
}
CLEAR_OPTSTART;
#ifdef DEBUG_DUMPUNTIL
Perl_re_printf( aTHX_ "--- %d\n", (int)indent);
#endif
return node;
}
#endif /* PERL_RE_BUILD_DEBUG */
/*
- regdump - dump a regexp onto Perl_debug_log in vaguely comprehensible form
*/
#ifdef DEBUGGING
static void
S_regdump_intflags(pTHX_ const char *lead, const U32 flags)
{
int bit;
int set = 0;
STATIC_ASSERT_STMT(REG_INTFLAGS_NAME_SIZE <= sizeof(flags) * CHARBITS);
for (bit = 0; bit < REG_INTFLAGS_NAME_SIZE; bit++) {
if (flags & (1 << bit)) {
if (!set++ && lead)
Perl_re_printf( aTHX_ "%s", lead);
Perl_re_printf( aTHX_ "%s ", PL_reg_intflags_name[bit]);
}
}
if (lead) {
if (set)
Perl_re_printf( aTHX_ "\n");
else
Perl_re_printf( aTHX_ "%s[none-set]\n", lead);
}
}
static void
S_regdump_extflags(pTHX_ const char *lead, const U32 flags)
{
int bit;
int set = 0;
regex_charset cs;
STATIC_ASSERT_STMT(REG_EXTFLAGS_NAME_SIZE <= sizeof(flags) * CHARBITS);
for (bit = 0; bit < REG_EXTFLAGS_NAME_SIZE; bit++) {
if (flags & (1U << bit)) {
if ((1U << bit) & RXf_PMf_CHARSET) { /* Output separately, below */
continue;
}
if (!set++ && lead)
Perl_re_printf( aTHX_ "%s", lead);
Perl_re_printf( aTHX_ "%s ", PL_reg_extflags_name[bit]);
}
}
if ((cs = get_regex_charset(flags)) != REGEX_DEPENDS_CHARSET) {
if (!set++ && lead) {
Perl_re_printf( aTHX_ "%s", lead);
}
switch (cs) {
case REGEX_UNICODE_CHARSET:
Perl_re_printf( aTHX_ "UNICODE");
break;
case REGEX_LOCALE_CHARSET:
Perl_re_printf( aTHX_ "LOCALE");
break;
case REGEX_ASCII_RESTRICTED_CHARSET:
Perl_re_printf( aTHX_ "ASCII-RESTRICTED");
break;
case REGEX_ASCII_MORE_RESTRICTED_CHARSET:
Perl_re_printf( aTHX_ "ASCII-MORE_RESTRICTED");
break;
default:
Perl_re_printf( aTHX_ "UNKNOWN CHARACTER SET");
break;
}
}
if (lead) {
if (set)
Perl_re_printf( aTHX_ "\n");
else
Perl_re_printf( aTHX_ "%s[none-set]\n", lead);
}
}
#endif
void
Perl_regdump(pTHX_ const regexp *r)
{
#ifdef DEBUGGING
int i;
SV * const sv = sv_newmortal();
SV *dsv= sv_newmortal();
RXi_GET_DECL(r, ri);
DECLARE_AND_GET_RE_DEBUG_FLAGS;
PERL_ARGS_ASSERT_REGDUMP;
(void)dumpuntil(r, ri->program, ri->program + 1, NULL, NULL, sv, 0, 0);
/* Header fields of interest. */
for (i = 0; i < 2; i++) {
if (r->substrs->data[i].substr) {
RE_PV_QUOTED_DECL(s, 0, dsv,
SvPVX_const(r->substrs->data[i].substr),
RE_SV_DUMPLEN(r->substrs->data[i].substr),
PL_dump_re_max_len);
Perl_re_printf( aTHX_
"%s %s%s at %" IVdf "..%" UVuf " ",
i ? "floating" : "anchored",
s,
RE_SV_TAIL(r->substrs->data[i].substr),
(IV)r->substrs->data[i].min_offset,
(UV)r->substrs->data[i].max_offset);
}
else if (r->substrs->data[i].utf8_substr) {
RE_PV_QUOTED_DECL(s, 1, dsv,
SvPVX_const(r->substrs->data[i].utf8_substr),
RE_SV_DUMPLEN(r->substrs->data[i].utf8_substr),
30);
Perl_re_printf( aTHX_
"%s utf8 %s%s at %" IVdf "..%" UVuf " ",
i ? "floating" : "anchored",
s,
RE_SV_TAIL(r->substrs->data[i].utf8_substr),
(IV)r->substrs->data[i].min_offset,
(UV)r->substrs->data[i].max_offset);
}
}
if (r->check_substr || r->check_utf8)
Perl_re_printf( aTHX_
(const char *)
( r->check_substr == r->substrs->data[1].substr
&& r->check_utf8 == r->substrs->data[1].utf8_substr
? "(checking floating" : "(checking anchored"));
if (r->intflags & PREGf_NOSCAN)
Perl_re_printf( aTHX_ " noscan");
if (r->extflags & RXf_CHECK_ALL)
Perl_re_printf( aTHX_ " isall");
if (r->check_substr || r->check_utf8)
Perl_re_printf( aTHX_ ") ");
if (ri->regstclass) {
regprop(r, sv, ri->regstclass, NULL, NULL);
Perl_re_printf( aTHX_ "stclass %s ", SvPVX_const(sv));
}
if (r->intflags & PREGf_ANCH) {
Perl_re_printf( aTHX_ "anchored");
if (r->intflags & PREGf_ANCH_MBOL)
Perl_re_printf( aTHX_ "(MBOL)");
if (r->intflags & PREGf_ANCH_SBOL)
Perl_re_printf( aTHX_ "(SBOL)");
if (r->intflags & PREGf_ANCH_GPOS)
Perl_re_printf( aTHX_ "(GPOS)");
Perl_re_printf( aTHX_ " ");
}
if (r->intflags & PREGf_GPOS_SEEN)
Perl_re_printf( aTHX_ "GPOS:%" UVuf " ", (UV)r->gofs);
if (r->intflags & PREGf_SKIP)
Perl_re_printf( aTHX_ "plus ");
if (r->intflags & PREGf_IMPLICIT)
Perl_re_printf( aTHX_ "implicit ");
Perl_re_printf( aTHX_ "minlen %" IVdf " ", (IV)r->minlen);
if (r->extflags & RXf_EVAL_SEEN)
Perl_re_printf( aTHX_ "with eval ");
Perl_re_printf( aTHX_ "\n");
DEBUG_FLAGS_r({
regdump_extflags("r->extflags: ", r->extflags);
regdump_intflags("r->intflags: ", r->intflags);
});
#else
PERL_ARGS_ASSERT_REGDUMP;
PERL_UNUSED_CONTEXT;
PERL_UNUSED_ARG(r);
#endif /* DEBUGGING */
}
/* Should be synchronized with ANYOF_ #defines in regcomp.h */
#ifdef DEBUGGING
# if CC_WORDCHAR_ != 0 || CC_DIGIT_ != 1 || CC_ALPHA_ != 2 \
|| CC_LOWER_ != 3 || CC_UPPER_ != 4 || CC_PUNCT_ != 5 \
|| CC_PRINT_ != 6 || CC_ALPHANUMERIC_ != 7 || CC_GRAPH_ != 8 \
|| CC_CASED_ != 9 || CC_SPACE_ != 10 || CC_BLANK_ != 11 \
|| CC_XDIGIT_ != 12 || CC_CNTRL_ != 13 || CC_ASCII_ != 14 \
|| CC_VERTSPACE_ != 15
# error Need to adjust order of anyofs[]
# endif
static const char * const anyofs[] = {
"\\w",
"\\W",
"\\d",
"\\D",
"[:alpha:]",
"[:^alpha:]",
"[:lower:]",
"[:^lower:]",
"[:upper:]",
"[:^upper:]",
"[:punct:]",
"[:^punct:]",
"[:print:]",
"[:^print:]",
"[:alnum:]",
"[:^alnum:]",
"[:graph:]",
"[:^graph:]",
"[:cased:]",
"[:^cased:]",
"\\s",
"\\S",
"[:blank:]",
"[:^blank:]",
"[:xdigit:]",
"[:^xdigit:]",
"[:cntrl:]",
"[:^cntrl:]",
"[:ascii:]",
"[:^ascii:]",
"\\v",
"\\V"
};
#endif
/*
- regprop - printable representation of opcode, with run time support
*/
void
Perl_regprop(pTHX_ const regexp *prog, SV *sv, const regnode *o, const regmatch_info *reginfo, const RExC_state_t *pRExC_state)
{
#ifdef DEBUGGING
U8 k;
const U8 op = OP(o);
RXi_GET_DECL(prog, progi);
DECLARE_AND_GET_RE_DEBUG_FLAGS;
PERL_ARGS_ASSERT_REGPROP;
SvPVCLEAR(sv);
if (op > REGNODE_MAX) { /* regnode.type is unsigned */
if (pRExC_state) { /* This gives more info, if we have it */
FAIL3("panic: corrupted regexp opcode %d > %d",
(int)op, (int)REGNODE_MAX);
}
else {
Perl_croak(aTHX_ "panic: corrupted regexp opcode %d > %d",
(int)op, (int)REGNODE_MAX);
}
}
sv_catpv(sv, REGNODE_NAME(op)); /* Take off const! */
k = REGNODE_TYPE(op);
if (op == BRANCH) {
Perl_sv_catpvf(aTHX_ sv, " (buf:%" IVdf "/%" IVdf ")", (IV)ARG1a(o),(IV)ARG1b(o));
}
else if (op == BRANCHJ) {
Perl_sv_catpvf(aTHX_ sv, " (buf:%" IVdf "/%" IVdf ")", (IV)ARG2a(o),(IV)ARG2b(o));
}
else if (k == EXACT) {
sv_catpvs(sv, " ");
/* Using is_utf8_string() (via PERL_PV_UNI_DETECT)
* is a crude hack but it may be the best for now since
* we have no flag "this EXACTish node was UTF-8"
* --jhi */
pv_pretty(sv, STRING(o), STR_LEN(o), PL_dump_re_max_len,
PL_colors[0], PL_colors[1],
PERL_PV_ESCAPE_UNI_DETECT |
PERL_PV_ESCAPE_NONASCII |
PERL_PV_PRETTY_ELLIPSES |
PERL_PV_PRETTY_LTGT |
PERL_PV_PRETTY_NOCLEAR
);
} else if (k == TRIE) {
/* print the details of the trie in dumpuntil instead, as
* progi->data isn't available here */
const U32 n = ARG1u(o);
const reg_ac_data * const ac = IS_TRIE_AC(op) ?
(reg_ac_data *)progi->data->data[n] :
NULL;
const reg_trie_data * const trie
= (reg_trie_data*)progi->data->data[!IS_TRIE_AC(op) ? n : ac->trie];
Perl_sv_catpvf(aTHX_ sv, "-%s", REGNODE_NAME(FLAGS(o)));
DEBUG_TRIE_COMPILE_r({
if (trie->jump)
sv_catpvs(sv, "(JUMP)");
Perl_sv_catpvf(aTHX_ sv,
"<S:%" UVuf "/%" IVdf " W:%" UVuf " L:%" UVuf "/%" UVuf " C:%" UVuf "/%" UVuf ">",
(UV)trie->startstate,
(IV)trie->statecount-1, /* -1 because of the unused 0 element */
(UV)trie->wordcount,
(UV)trie->minlen,
(UV)trie->maxlen,
(UV)TRIE_CHARCOUNT(trie),
(UV)trie->uniquecharcount
);
});
if ( IS_ANYOF_TRIE(op) || trie->bitmap ) {
sv_catpvs(sv, "[");
(void) put_charclass_bitmap_innards(sv,
((IS_ANYOF_TRIE(op))
? ANYOF_BITMAP(o)
: TRIE_BITMAP(trie)),
NULL,
NULL,
NULL,
0,
FALSE
);
sv_catpvs(sv, "]");
}
if (trie->before_paren || trie->after_paren)
Perl_sv_catpvf(aTHX_ sv, " (buf:%" IVdf "/%" IVdf ")",
(IV)trie->before_paren,(IV)trie->after_paren);
} else if (k == CURLY) {
U32 lo = ARG1i(o), hi = ARG2i(o);
if (ARG3u(o)) /* check both ARG3a and ARG3b at the same time */
Perl_sv_catpvf(aTHX_ sv, "<%d:%d>", ARG3a(o),ARG3b(o)); /* paren before, paren after */
if (op == CURLYM || op == CURLYN || op == CURLYX)
Perl_sv_catpvf(aTHX_ sv, "[%d]", FLAGS(o)); /* Parenth number */
Perl_sv_catpvf(aTHX_ sv, "{%u,", (unsigned) lo);
if (hi == REG_INFTY)
sv_catpvs(sv, "INFTY");
else
Perl_sv_catpvf(aTHX_ sv, "%u", (unsigned) hi);
sv_catpvs(sv, "}");
}
else if (k == WHILEM && FLAGS(o)) /* Ordinal/of */
Perl_sv_catpvf(aTHX_ sv, "[%d/%d]", FLAGS(o) & 0xf, FLAGS(o)>>4);
else if (k == REF || k == OPEN || k == CLOSE
|| k == GROUPP || op == ACCEPT)
{
AV *name_list= NULL;
U32 parno = (op == ACCEPT) ? ARG2u(o) :
(op == OPEN || op == CLOSE) ? PARNO(o) :
ARG1u(o);
if ( RXp_PAREN_NAMES(prog) ) {
name_list = MUTABLE_AV(progi->data->data[progi->name_list_idx]);
} else if ( pRExC_state ) {
name_list = RExC_paren_name_list;
}
if ( name_list ) {
if ( k != REF || (op < REFN)) {
UV logical_parno = parno;
if (prog->parno_to_logical)
logical_parno = prog->parno_to_logical[parno];
Perl_sv_catpvf(aTHX_ sv, "%" UVuf, (UV)logical_parno); /* Parenth number */
if (parno != logical_parno)
Perl_sv_catpvf(aTHX_ sv, "/%" UVuf, (UV)parno); /* Parenth number */
SV **name= av_fetch_simple(name_list, parno, 0 );
if (name)
Perl_sv_catpvf(aTHX_ sv, " '%" SVf "'", SVfARG(*name));
}
else
if (parno > 0) {
/* parno must always be larger than 0 for this block
* as it represents a slot into the data array, which
* has the 0 slot reserved for a placeholder so any valid
* index into it is always true, eg non-zero
* see the '%' "what" type and the implementation of
* S_reg_add_data()
*/
SV *sv_dat= MUTABLE_SV(progi->data->data[ parno ]);
I32 *nums = (I32*)SvPVX(sv_dat);
SV **name= av_fetch_simple(name_list, nums[0], 0 );
I32 n;
if (name) {
for ( n = 0; n < SvIVX(sv_dat); n++ ) {
Perl_sv_catpvf(aTHX_ sv, "%s%" IVdf,
(n ? "," : ""), (IV)nums[n]);
}
Perl_sv_catpvf(aTHX_ sv, " '%" SVf "'", SVfARG(*name));
}
}
} else if (parno > 0) {
UV logical_parno = parno;
if (prog->parno_to_logical)
logical_parno = prog->parno_to_logical[parno];
Perl_sv_catpvf(aTHX_ sv, "%" UVuf, (UV)logical_parno); /* Parenth number */
if (logical_parno != parno)
Perl_sv_catpvf(aTHX_ sv, "/%" UVuf, (UV)parno); /* Parenth number */
}
if ( k == REF ) {
Perl_sv_catpvf(aTHX_ sv, " <%" IVdf ">", (IV)ARG2i(o));
}
if ( k == REF && reginfo) {
U32 n = ARG1u(o); /* which paren pair */
I32 ln = RXp_OFFS_START(prog,n);
if (RXp_LASTPAREN(prog) < n || ln == -1 || RXp_OFFS_END(prog,n) == -1)
Perl_sv_catpvf(aTHX_ sv, ": FAIL");
else if (ln == RXp_OFFS_END(prog,n))
Perl_sv_catpvf(aTHX_ sv, ": ACCEPT - EMPTY STRING");
else {
const char *s = reginfo->strbeg + ln;
Perl_sv_catpvf(aTHX_ sv, ": ");
Perl_pv_pretty( aTHX_ sv, s, RXp_OFFS_END(prog,n) - RXp_OFFS_START(prog,n), 32, 0, 0,
PERL_PV_ESCAPE_UNI_DETECT|PERL_PV_PRETTY_NOCLEAR|PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_QUOTE );
}
}
} else if (k == GOSUB) {
AV *name_list= NULL;
IV parno = ARG1u(o);
IV logical_parno = (parno && prog->parno_to_logical)
? prog->parno_to_logical[parno]
: parno;
if ( RXp_PAREN_NAMES(prog) ) {
name_list = MUTABLE_AV(progi->data->data[progi->name_list_idx]);
} else if ( pRExC_state ) {
name_list = RExC_paren_name_list;
}
/* Paren and offset */
Perl_sv_catpvf(aTHX_ sv, "%" IVdf, logical_parno);
if (logical_parno != parno)
Perl_sv_catpvf(aTHX_ sv, "/%" IVdf, parno);
Perl_sv_catpvf(aTHX_ sv, "[%+d:%d]", (int)ARG2i(o),
(int)((o + (int)ARG2i(o)) - progi->program) );
if (name_list) {
SV **name= av_fetch_simple(name_list, ARG1u(o), 0 );
if (name)
Perl_sv_catpvf(aTHX_ sv, " '%" SVf "'", SVfARG(*name));
}
}
else if (k == LOGICAL)
/* 2: embedded, otherwise 1 */
Perl_sv_catpvf(aTHX_ sv, "[%d]", FLAGS(o));
else if (k == ANYOF || k == ANYOFH || k == ANYOFR) {
U8 flags;
char * bitmap;
U8 do_sep = 0; /* Do we need to separate various components of the
output? */
/* Set if there is still an unresolved user-defined property */
SV *unresolved = NULL;
/* Things that are ignored except when the runtime locale is UTF-8 */
SV *only_utf8_locale_invlist = NULL;
/* Code points that don't fit in the bitmap */
SV *nonbitmap_invlist = NULL;
/* And things that aren't in the bitmap, but are small enough to be */
SV* bitmap_range_not_in_bitmap = NULL;
bool inverted;
if (k != ANYOF) {
flags = 0;
bitmap = NULL;
}
else {
flags = ANYOF_FLAGS(o);
bitmap = ANYOF_BITMAP(o);
}
if (op == ANYOFL || op == ANYOFPOSIXL) {
if ((flags & ANYOFL_UTF8_LOCALE_REQD)) {
sv_catpvs(sv, "{utf8-locale-reqd}");
}
if (flags & ANYOFL_FOLD) {
sv_catpvs(sv, "{i}");
}
}
inverted = flags & ANYOF_INVERT;
/* If there is stuff outside the bitmap, get it */
if (k == ANYOFR) {
/* For a single range, split into the parts inside vs outside the
* bitmap. */
UV start = ANYOFRbase(o);
UV end = ANYOFRbase(o) + ANYOFRdelta(o);
if (start < NUM_ANYOF_CODE_POINTS) {
if (end < NUM_ANYOF_CODE_POINTS) {
bitmap_range_not_in_bitmap
= _add_range_to_invlist(bitmap_range_not_in_bitmap,
start, end);
}
else {
bitmap_range_not_in_bitmap
= _add_range_to_invlist(bitmap_range_not_in_bitmap,
start, NUM_ANYOF_CODE_POINTS);
start = NUM_ANYOF_CODE_POINTS;
}
}
if (start >= NUM_ANYOF_CODE_POINTS) {
nonbitmap_invlist = _add_range_to_invlist(nonbitmap_invlist,
ANYOFRbase(o),
ANYOFRbase(o) + ANYOFRdelta(o));
}
}
else if (ANYOF_MATCHES_ALL_OUTSIDE_BITMAP(o)) {
nonbitmap_invlist = _add_range_to_invlist(nonbitmap_invlist,
NUM_ANYOF_CODE_POINTS,
UV_MAX);
}
else if (ANYOF_HAS_AUX(o)) {
(void) GET_REGCLASS_AUX_DATA(prog, o, FALSE,
&unresolved,
&only_utf8_locale_invlist,
&nonbitmap_invlist);
/* The aux data may contain stuff that could fit in the bitmap.
* This could come from a user-defined property being finally
* resolved when this call was done; or much more likely because
* there are matches that require UTF-8 to be valid, and so aren't
* in the bitmap (or ANYOFR). This is teased apart later */
_invlist_intersection(nonbitmap_invlist,
PL_InBitmap,
&bitmap_range_not_in_bitmap);
/* Leave just the things that don't fit into the bitmap */
_invlist_subtract(nonbitmap_invlist,
PL_InBitmap,
&nonbitmap_invlist);
}
/* Ready to start outputting. First, the initial left bracket */
Perl_sv_catpvf(aTHX_ sv, "[%s", PL_colors[0]);
if ( bitmap
|| bitmap_range_not_in_bitmap
|| only_utf8_locale_invlist
|| unresolved)
{
/* Then all the things that could fit in the bitmap */
do_sep = put_charclass_bitmap_innards(
sv,
bitmap,
bitmap_range_not_in_bitmap,
only_utf8_locale_invlist,
o,
flags,
/* Can't try inverting for a
* better display if there
* are things that haven't
* been resolved */
(unresolved != NULL || k == ANYOFR));
SvREFCNT_dec(bitmap_range_not_in_bitmap);
/* If there are user-defined properties which haven't been defined
* yet, output them. If the result is not to be inverted, it is
* clearest to output them in a separate [] from the bitmap range
* stuff. If the result is to be complemented, we have to show
* everything in one [], as the inversion applies to the whole
* thing. Use {braces} to separate them from anything in the
* bitmap and anything above the bitmap. */
if (unresolved) {
if (inverted) {
if (! do_sep) { /* If didn't output anything in the bitmap
*/
sv_catpvs(sv, "^");
}
sv_catpvs(sv, "{");
}
else if (do_sep) {
Perl_sv_catpvf(aTHX_ sv,"%s][%s", PL_colors[1],
PL_colors[0]);
}
sv_catsv(sv, unresolved);
if (inverted) {
sv_catpvs(sv, "}");
}
do_sep = ! inverted;
}
else if ( do_sep == 2
&& ! nonbitmap_invlist
&& ANYOF_MATCHES_NONE_OUTSIDE_BITMAP(o))
{
/* Here, the display shows the class as inverted, and
* everything above the lower display should also match, but
* there is no indication of that. Add this range so the code
* below will add it to the display */
_invlist_union_complement_2nd(nonbitmap_invlist,
PL_InBitmap,
&nonbitmap_invlist);
}
}
/* And, finally, add the above-the-bitmap stuff */
if (nonbitmap_invlist && _invlist_len(nonbitmap_invlist)) {
SV* contents;
/* See if truncation size is overridden */
const STRLEN dump_len = (PL_dump_re_max_len > 256)
? PL_dump_re_max_len
: 256;
/* This is output in a separate [] */
if (do_sep) {
Perl_sv_catpvf(aTHX_ sv,"%s][%s", PL_colors[1], PL_colors[0]);
}
/* And, for easy of understanding, it is shown in the
* uncomplemented form if possible. The one exception being if
* there are unresolved items, where the inversion has to be
* delayed until runtime */
if (inverted && ! unresolved) {
_invlist_invert(nonbitmap_invlist);
_invlist_subtract(nonbitmap_invlist, PL_InBitmap, &nonbitmap_invlist);
}
contents = invlist_contents(nonbitmap_invlist,
FALSE /* output suitable for catsv */
);
/* If the output is shorter than the permissible maximum, just do it. */
if (SvCUR(contents) <= dump_len) {
sv_catsv(sv, contents);
}
else {
const char * contents_string = SvPVX(contents);
STRLEN i = dump_len;
/* Otherwise, start at the permissible max and work back to the
* first break possibility */
while (i > 0 && contents_string[i] != ' ') {
i--;
}
if (i == 0) { /* Fail-safe. Use the max if we couldn't
find a legal break */
i = dump_len;
}
sv_catpvn(sv, contents_string, i);
sv_catpvs(sv, "...");
}
SvREFCNT_dec_NN(contents);
SvREFCNT_dec_NN(nonbitmap_invlist);
}
/* And finally the matching, closing ']' */
Perl_sv_catpvf(aTHX_ sv, "%s]", PL_colors[1]);
if (op == ANYOFHs) {
Perl_sv_catpvf(aTHX_ sv, " (Leading UTF-8 bytes = %s",
_byte_dump_string((U8 *) ((struct regnode_anyofhs *) o)->string,
FLAGS(o), 1));
}
else if (REGNODE_TYPE(op) != ANYOF) {
U8 lowest = (op != ANYOFHr)
? FLAGS(o)
: LOWEST_ANYOF_HRx_BYTE(FLAGS(o));
U8 highest = (op == ANYOFHr)
? HIGHEST_ANYOF_HRx_BYTE(FLAGS(o))
: (op == ANYOFH || op == ANYOFR)
? 0xFF
: lowest;
#ifndef EBCDIC
if (op != ANYOFR || ! isASCII(ANYOFRbase(o) + ANYOFRdelta(o)))
#endif
{
Perl_sv_catpvf(aTHX_ sv, " (First UTF-8 byte = %02X", lowest);
if (lowest != highest) {
Perl_sv_catpvf(aTHX_ sv, "-%02X", highest);
}
Perl_sv_catpvf(aTHX_ sv, ")");
}
}
SvREFCNT_dec(unresolved);
}
else if (k == ANYOFM) {
SV * cp_list = get_ANYOFM_contents(o);
Perl_sv_catpvf(aTHX_ sv, "[%s", PL_colors[0]);
if (op == NANYOFM) {
_invlist_invert(cp_list);
}
put_charclass_bitmap_innards(sv, NULL, cp_list, NULL, NULL, 0, TRUE);
Perl_sv_catpvf(aTHX_ sv, "%s]", PL_colors[1]);
SvREFCNT_dec(cp_list);
}
else if (k == ANYOFHbbm) {
SV * cp_list = get_ANYOFHbbm_contents(o);
Perl_sv_catpvf(aTHX_ sv, "[%s", PL_colors[0]);
sv_catsv(sv, invlist_contents(cp_list,
FALSE /* output suitable for catsv */
));
Perl_sv_catpvf(aTHX_ sv, "%s]", PL_colors[1]);
SvREFCNT_dec(cp_list);
}
else if (k == POSIXD || k == NPOSIXD) {
U8 index = FLAGS(o) * 2;