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Avoid AV and HV in perlio.c by inventing PerlIO_list_t which is AV-ish
[p5sagit/p5-mst-13.2.git] / ext / Data / Dumper / Dumper.xs
CommitLineData
c5be433b 1#define PERL_NO_GET_CONTEXT
823edd99 2#include "EXTERN.h"
3#include "perl.h"
4#include "XSUB.h"
823edd99 5
cceca5ed 6#ifndef PERL_VERSION
0f4592ef 7#include "patchlevel.h"
5a930efa 8#define PERL_VERSION PATCHLEVEL
cceca5ed 9#endif
0f4592ef 10
cceca5ed 11#if PERL_VERSION < 5
7820172a 12# ifndef PL_sv_undef
13# define PL_sv_undef sv_undef
14# endif
15# ifndef ERRSV
16# define ERRSV GvSV(errgv)
17# endif
18# ifndef newSVpvn
19# define newSVpvn newSVpv
20# endif
21#endif
823edd99 22
20ce7b12 23static I32 num_q (char *s, STRLEN slen);
24static I32 esc_q (char *dest, char *src, STRLEN slen);
6cde4e94 25static I32 esc_q_utf8 (pTHX_ SV *sv, char *src, STRLEN slen);
cea2e8a9 26static SV *sv_x (pTHX_ SV *sv, char *str, STRLEN len, I32 n);
27static I32 DD_dump (pTHX_ SV *val, char *name, STRLEN namelen, SV *retval,
20ce7b12 28 HV *seenhv, AV *postav, I32 *levelp, I32 indent,
29 SV *pad, SV *xpad, SV *apad, SV *sep,
30 SV *freezer, SV *toaster,
a2126434 31 I32 purity, I32 deepcopy, I32 quotekeys, SV *bless,
32 I32 maxdepth);
823edd99 33
34/* does a string need to be protected? */
35static I32
36needs_quote(register char *s)
37{
38TOP:
39 if (s[0] == ':') {
40 if (*++s) {
41 if (*s++ != ':')
42 return 1;
43 }
44 else
45 return 1;
46 }
47 if (isIDFIRST(*s)) {
48 while (*++s)
7b0972df 49 if (!isALNUM(*s)) {
823edd99 50 if (*s == ':')
51 goto TOP;
52 else
53 return 1;
7b0972df 54 }
823edd99 55 }
6cde4e94 56 else
823edd99 57 return 1;
58 return 0;
59}
60
61/* count the number of "'"s and "\"s in string */
62static I32
6c1ab3c2 63num_q(register char *s, register STRLEN slen)
823edd99 64{
65 register I32 ret = 0;
6c1ab3c2 66
67 while (slen > 0) {
823edd99 68 if (*s == '\'' || *s == '\\')
69 ++ret;
70 ++s;
6c1ab3c2 71 --slen;
823edd99 72 }
73 return ret;
74}
75
76
77/* returns number of chars added to escape "'"s and "\"s in s */
78/* slen number of characters in s will be escaped */
79/* destination must be long enough for additional chars */
80static I32
81esc_q(register char *d, register char *s, register STRLEN slen)
82{
83 register I32 ret = 0;
6cde4e94 84
823edd99 85 while (slen > 0) {
86 switch (*s) {
87 case '\'':
88 case '\\':
89 *d = '\\';
90 ++d; ++ret;
91 default:
92 *d = *s;
93 ++d; ++s; --slen;
94 break;
95 }
96 }
97 return ret;
98}
99
dc71dc59 100static I32
6cde4e94 101esc_q_utf8(pTHX_ SV* sv, register char *src, register STRLEN slen)
dc71dc59 102{
103 char *s, *send, *r;
104 STRLEN grow = 0, j = 1, l;
105 bool dquote = FALSE;
6cde4e94 106
dc71dc59 107 /* this will need EBCDICification */
108 for (s = src, send = src + slen; s < send; s += UTF8SKIP(s)) {
109 UV k = utf8_to_uvchr((U8*)s, &l);
6cde4e94 110
dc71dc59 111 grow +=
112 (*s == '"' || *s == '\\') ? 2 :
113 (k < 0x80 ? 1 : UNISKIP(k) + 1 + 4); /* 4: \x{} */
114 }
115 sv_grow(sv, SvCUR(sv)+3+grow); /* 3: ""\0 */
116 r = SvPVX(sv) + SvCUR(sv);
117
118 for (s = src; s < send; s += UTF8SKIP(s)) {
119 UV k = utf8_to_uvchr((U8*)s, &l);
120
121 if (*s == '"' || *s == '\\') {
122 r[j++] = '\\';
123 r[j++] = *s;
124 }
125 else if (k < 0x80)
126 r[j++] = k;
127 else {
128 r[j++] = '\\';
129 r[j++] = 'x';
130 r[j++] = '{';
29b291f7 131 j += sprintf(r + j, "%"UVxf, k);
dc71dc59 132 r[j++] = '}';
133 dquote = TRUE;
134 }
135 }
136 if (dquote)
137 r[0] = r[j++] = '"';
138 else
139 r[0] = r[j++] = '\'';
140 r[j++] = '\0';
141 SvCUR_set(sv, SvCUR(sv) + j);
142
143 return j;
144}
145
823edd99 146/* append a repeated string to an SV */
147static SV *
cea2e8a9 148sv_x(pTHX_ SV *sv, register char *str, STRLEN len, I32 n)
823edd99 149{
150 if (sv == Nullsv)
7820172a 151 sv = newSVpvn("", 0);
823edd99 152 else
153 assert(SvTYPE(sv) >= SVt_PV);
154
155 if (n > 0) {
156 SvGROW(sv, len*n + SvCUR(sv) + 1);
157 if (len == 1) {
158 char *start = SvPVX(sv) + SvCUR(sv);
159 SvCUR(sv) += n;
160 start[n] = '\0';
161 while (n > 0)
162 start[--n] = str[0];
163 }
164 else
165 while (n > 0) {
166 sv_catpvn(sv, str, len);
167 --n;
168 }
169 }
170 return sv;
171}
172
173/*
174 * This ought to be split into smaller functions. (it is one long function since
175 * it exactly parallels the perl version, which was one long thing for
176 * efficiency raisins.) Ugggh!
177 */
178static I32
cea2e8a9 179DD_dump(pTHX_ SV *val, char *name, STRLEN namelen, SV *retval, HV *seenhv,
823edd99 180 AV *postav, I32 *levelp, I32 indent, SV *pad, SV *xpad,
181 SV *apad, SV *sep, SV *freezer, SV *toaster, I32 purity,
a2126434 182 I32 deepcopy, I32 quotekeys, SV *bless, I32 maxdepth)
823edd99 183{
184 char tmpbuf[128];
185 U32 i;
186 char *c, *r, *realpack, id[128];
187 SV **svp;
7820172a 188 SV *sv, *ipad, *ival;
823edd99 189 SV *blesspad = Nullsv;
7820172a 190 AV *seenentry = Nullav;
823edd99 191 char *iname;
192 STRLEN inamelen, idlen = 0;
193 U32 flags;
194 U32 realtype;
195
196 if (!val)
197 return 0;
198
199 flags = SvFLAGS(val);
200 realtype = SvTYPE(val);
6cde4e94 201
823edd99 202 if (SvGMAGICAL(val))
203 mg_get(val);
823edd99 204 if (SvROK(val)) {
205
206 if (SvOBJECT(SvRV(val)) && freezer &&
207 SvPOK(freezer) && SvCUR(freezer))
208 {
209 dSP; ENTER; SAVETMPS; PUSHMARK(sp);
210 XPUSHs(val); PUTBACK;
211 i = perl_call_method(SvPVX(freezer), G_EVAL|G_SCALAR);
212 SPAGAIN;
7820172a 213 if (SvTRUE(ERRSV))
823edd99 214 warn("WARNING(Freezer method call failed): %s",
7820172a 215 SvPVX(ERRSV));
823edd99 216 else if (i)
217 val = newSVsv(POPs);
218 PUTBACK; FREETMPS; LEAVE;
219 if (i)
220 (void)sv_2mortal(val);
221 }
222
223 ival = SvRV(val);
224 flags = SvFLAGS(ival);
225 realtype = SvTYPE(ival);
226 (void) sprintf(id, "0x%lx", (unsigned long)ival);
227 idlen = strlen(id);
228 if (SvOBJECT(ival))
229 realpack = HvNAME(SvSTASH(ival));
230 else
231 realpack = Nullch;
7820172a 232
233 /* if it has a name, we need to either look it up, or keep a tab
234 * on it so we know when we hit it later
235 */
236 if (namelen) {
237 if ((svp = hv_fetch(seenhv, id, idlen, FALSE))
238 && (sv = *svp) && SvROK(sv) && (seenentry = (AV*)SvRV(sv)))
239 {
240 SV *othername;
241 if ((svp = av_fetch(seenentry, 0, FALSE))
242 && (othername = *svp))
243 {
244 if (purity && *levelp > 0) {
245 SV *postentry;
246
247 if (realtype == SVt_PVHV)
248 sv_catpvn(retval, "{}", 2);
249 else if (realtype == SVt_PVAV)
250 sv_catpvn(retval, "[]", 2);
251 else
5df59fb6 252 sv_catpvn(retval, "do{my $o}", 9);
7820172a 253 postentry = newSVpvn(name, namelen);
254 sv_catpvn(postentry, " = ", 3);
255 sv_catsv(postentry, othername);
256 av_push(postav, postentry);
257 }
258 else {
259 if (name[0] == '@' || name[0] == '%') {
260 if ((SvPVX(othername))[0] == '\\' &&
261 (SvPVX(othername))[1] == name[0]) {
262 sv_catpvn(retval, SvPVX(othername)+1,
263 SvCUR(othername)-1);
264 }
265 else {
266 sv_catpvn(retval, name, 1);
267 sv_catpvn(retval, "{", 1);
268 sv_catsv(retval, othername);
269 sv_catpvn(retval, "}", 1);
270 }
823edd99 271 }
7820172a 272 else
823edd99 273 sv_catsv(retval, othername);
823edd99 274 }
7820172a 275 return 1;
276 }
277 else {
278 warn("ref name not found for %s", id);
279 return 0;
823edd99 280 }
823edd99 281 }
7820172a 282 else { /* store our name and continue */
283 SV *namesv;
284 if (name[0] == '@' || name[0] == '%') {
285 namesv = newSVpvn("\\", 1);
286 sv_catpvn(namesv, name, namelen);
287 }
288 else if (realtype == SVt_PVCV && name[0] == '*') {
289 namesv = newSVpvn("\\", 2);
290 sv_catpvn(namesv, name, namelen);
291 (SvPVX(namesv))[1] = '&';
292 }
293 else
294 namesv = newSVpvn(name, namelen);
295 seenentry = newAV();
296 av_push(seenentry, namesv);
297 (void)SvREFCNT_inc(val);
298 av_push(seenentry, val);
299 (void)hv_store(seenhv, id, strlen(id),
300 newRV((SV*)seenentry), 0);
301 SvREFCNT_dec(seenentry);
823edd99 302 }
823edd99 303 }
823edd99 304
a2126434 305 if (realpack && *realpack == 'R' && strEQ(realpack, "Regexp")) {
306 STRLEN rlen;
307 char *rval = SvPV(val, rlen);
308 char *slash = strchr(rval, '/');
309 sv_catpvn(retval, "qr/", 3);
310 while (slash) {
311 sv_catpvn(retval, rval, slash-rval);
312 sv_catpvn(retval, "\\/", 2);
313 rlen -= slash-rval+1;
314 rval = slash+1;
315 slash = strchr(rval, '/');
7894fbab 316 }
a2126434 317 sv_catpvn(retval, rval, rlen);
318 sv_catpvn(retval, "/", 1);
319 return 1;
320 }
321
322 /* If purity is not set and maxdepth is set, then check depth:
323 * if we have reached maximum depth, return the string
324 * representation of the thing we are currently examining
6cde4e94 325 * at this depth (i.e., 'Foo=ARRAY(0xdeadbeef)').
a2126434 326 */
327 if (!purity && maxdepth > 0 && *levelp >= maxdepth) {
328 STRLEN vallen;
329 char *valstr = SvPV(val,vallen);
330 sv_catpvn(retval, "'", 1);
331 sv_catpvn(retval, valstr, vallen);
332 sv_catpvn(retval, "'", 1);
333 return 1;
334 }
335
336 if (realpack) { /* we have a blessed ref */
337 STRLEN blesslen;
338 char *blessstr = SvPV(bless, blesslen);
339 sv_catpvn(retval, blessstr, blesslen);
340 sv_catpvn(retval, "( ", 2);
341 if (indent >= 2) {
342 blesspad = apad;
343 apad = newSVsv(apad);
344 sv_x(aTHX_ apad, " ", 1, blesslen+2);
823edd99 345 }
346 }
347
7894fbab 348 (*levelp)++;
349 ipad = sv_x(aTHX_ Nullsv, SvPVX(xpad), SvCUR(xpad), *levelp);
350
7820172a 351 if (realtype <= SVt_PVBM) { /* scalar ref */
352 SV *namesv = newSVpvn("${", 2);
353 sv_catpvn(namesv, name, namelen);
354 sv_catpvn(namesv, "}", 1);
6cde4e94 355 if (realpack) { /* blessed */
823edd99 356 sv_catpvn(retval, "do{\\(my $o = ", 13);
cea2e8a9 357 DD_dump(aTHX_ ival, SvPVX(namesv), SvCUR(namesv), retval, seenhv,
7820172a 358 postav, levelp, indent, pad, xpad, apad, sep,
a2126434 359 freezer, toaster, purity, deepcopy, quotekeys, bless,
360 maxdepth);
823edd99 361 sv_catpvn(retval, ")}", 2);
7820172a 362 } /* plain */
823edd99 363 else {
364 sv_catpvn(retval, "\\", 1);
cea2e8a9 365 DD_dump(aTHX_ ival, SvPVX(namesv), SvCUR(namesv), retval, seenhv,
7820172a 366 postav, levelp, indent, pad, xpad, apad, sep,
a2126434 367 freezer, toaster, purity, deepcopy, quotekeys, bless,
368 maxdepth);
823edd99 369 }
7820172a 370 SvREFCNT_dec(namesv);
371 }
372 else if (realtype == SVt_PVGV) { /* glob ref */
373 SV *namesv = newSVpvn("*{", 2);
374 sv_catpvn(namesv, name, namelen);
375 sv_catpvn(namesv, "}", 1);
376 sv_catpvn(retval, "\\", 1);
cea2e8a9 377 DD_dump(aTHX_ ival, SvPVX(namesv), SvCUR(namesv), retval, seenhv,
7820172a 378 postav, levelp, indent, pad, xpad, apad, sep,
a2126434 379 freezer, toaster, purity, deepcopy, quotekeys, bless,
380 maxdepth);
7820172a 381 SvREFCNT_dec(namesv);
823edd99 382 }
383 else if (realtype == SVt_PVAV) {
384 SV *totpad;
385 I32 ix = 0;
386 I32 ixmax = av_len((AV *)ival);
6cde4e94 387
823edd99 388 SV *ixsv = newSViv(0);
389 /* allowing for a 24 char wide array index */
390 New(0, iname, namelen+28, char);
391 (void)strcpy(iname, name);
392 inamelen = namelen;
393 if (name[0] == '@') {
394 sv_catpvn(retval, "(", 1);
395 iname[0] = '$';
396 }
397 else {
398 sv_catpvn(retval, "[", 1);
7820172a 399 /* omit "->" in $foo{bar}->[0], but not in ${$foo}->[0] */
400 /*if (namelen > 0
401 && name[namelen-1] != ']' && name[namelen-1] != '}'
402 && (namelen < 4 || (name[1] != '{' && name[2] != '{')))*/
403 if ((namelen > 0
404 && name[namelen-1] != ']' && name[namelen-1] != '}')
405 || (namelen > 4
406 && (name[1] == '{'
407 || (name[0] == '\\' && name[2] == '{'))))
408 {
823edd99 409 iname[inamelen++] = '-'; iname[inamelen++] = '>';
410 iname[inamelen] = '\0';
411 }
412 }
413 if (iname[0] == '*' && iname[inamelen-1] == '}' && inamelen >= 8 &&
414 (instr(iname+inamelen-8, "{SCALAR}") ||
415 instr(iname+inamelen-7, "{ARRAY}") ||
416 instr(iname+inamelen-6, "{HASH}"))) {
417 iname[inamelen++] = '-'; iname[inamelen++] = '>';
418 }
419 iname[inamelen++] = '['; iname[inamelen] = '\0';
420 totpad = newSVsv(sep);
421 sv_catsv(totpad, pad);
422 sv_catsv(totpad, apad);
423
424 for (ix = 0; ix <= ixmax; ++ix) {
425 STRLEN ilen;
426 SV *elem;
427 svp = av_fetch((AV*)ival, ix, FALSE);
428 if (svp)
429 elem = *svp;
430 else
3280af22 431 elem = &PL_sv_undef;
823edd99 432
433 ilen = inamelen;
434 sv_setiv(ixsv, ix);
7b0972df 435 (void) sprintf(iname+ilen, "%"IVdf, (IV)ix);
823edd99 436 ilen = strlen(iname);
437 iname[ilen++] = ']'; iname[ilen] = '\0';
438 if (indent >= 3) {
439 sv_catsv(retval, totpad);
440 sv_catsv(retval, ipad);
441 sv_catpvn(retval, "#", 1);
442 sv_catsv(retval, ixsv);
443 }
444 sv_catsv(retval, totpad);
445 sv_catsv(retval, ipad);
cea2e8a9 446 DD_dump(aTHX_ elem, iname, ilen, retval, seenhv, postav,
823edd99 447 levelp, indent, pad, xpad, apad, sep,
a2126434 448 freezer, toaster, purity, deepcopy, quotekeys, bless,
449 maxdepth);
823edd99 450 if (ix < ixmax)
451 sv_catpvn(retval, ",", 1);
452 }
453 if (ixmax >= 0) {
cea2e8a9 454 SV *opad = sv_x(aTHX_ Nullsv, SvPVX(xpad), SvCUR(xpad), (*levelp)-1);
823edd99 455 sv_catsv(retval, totpad);
456 sv_catsv(retval, opad);
457 SvREFCNT_dec(opad);
458 }
459 if (name[0] == '@')
460 sv_catpvn(retval, ")", 1);
461 else
462 sv_catpvn(retval, "]", 1);
463 SvREFCNT_dec(ixsv);
464 SvREFCNT_dec(totpad);
465 Safefree(iname);
466 }
467 else if (realtype == SVt_PVHV) {
468 SV *totpad, *newapad;
469 SV *iname, *sname;
470 HE *entry;
471 char *key;
472 I32 klen;
473 SV *hval;
6cde4e94 474
7820172a 475 iname = newSVpvn(name, namelen);
823edd99 476 if (name[0] == '%') {
477 sv_catpvn(retval, "(", 1);
478 (SvPVX(iname))[0] = '$';
479 }
480 else {
481 sv_catpvn(retval, "{", 1);
7820172a 482 /* omit "->" in $foo[0]->{bar}, but not in ${$foo}->{bar} */
483 if ((namelen > 0
484 && name[namelen-1] != ']' && name[namelen-1] != '}')
485 || (namelen > 4
486 && (name[1] == '{'
487 || (name[0] == '\\' && name[2] == '{'))))
488 {
823edd99 489 sv_catpvn(iname, "->", 2);
490 }
491 }
492 if (name[0] == '*' && name[namelen-1] == '}' && namelen >= 8 &&
493 (instr(name+namelen-8, "{SCALAR}") ||
494 instr(name+namelen-7, "{ARRAY}") ||
495 instr(name+namelen-6, "{HASH}"))) {
496 sv_catpvn(iname, "->", 2);
497 }
498 sv_catpvn(iname, "{", 1);
499 totpad = newSVsv(sep);
500 sv_catsv(totpad, pad);
501 sv_catsv(totpad, apad);
6cde4e94 502
823edd99 503 (void)hv_iterinit((HV*)ival);
504 i = 0;
505 while ((entry = hv_iternext((HV*)ival))) {
dc71dc59 506 char *nkey = NULL;
823edd99 507 I32 nticks = 0;
dc71dc59 508 SV* keysv;
509 STRLEN keylen;
510 bool do_utf8 = FALSE;
823edd99 511
512 if (i)
513 sv_catpvn(retval, ",", 1);
514 i++;
dc71dc59 515 keysv = hv_iterkeysv(entry);
516 hval = hv_iterval((HV*)ival, entry);
517
518 do_utf8 = DO_UTF8(keysv);
519 key = SvPV(keysv, keylen);
520 klen = keylen;
521
522 if (do_utf8) {
523 char *okey = SvPVX(retval) + SvCUR(retval);
524 I32 nlen;
525
526 sv_catsv(retval, totpad);
527 sv_catsv(retval, ipad);
6cde4e94 528 nlen = esc_q_utf8(aTHX_ retval, key, klen);
dc71dc59 529
530 sname = newSVsv(iname);
531 sv_catpvn(sname, okey, nlen);
532 sv_catpvn(sname, "}", 1);
823edd99 533 }
534 else {
dc71dc59 535 if (quotekeys || needs_quote(key)) {
536 nticks = num_q(key, klen);
537 New(0, nkey, klen+nticks+3, char);
538 nkey[0] = '\'';
539 if (nticks)
540 klen += esc_q(nkey+1, key, klen);
541 else
542 (void)Copy(key, nkey+1, klen, char);
543 nkey[++klen] = '\'';
544 nkey[++klen] = '\0';
545 }
546 else {
547 New(0, nkey, klen, char);
548 (void)Copy(key, nkey, klen, char);
549 }
823edd99 550
dc71dc59 551 sname = newSVsv(iname);
552 sv_catpvn(sname, nkey, klen);
553 sv_catpvn(sname, "}", 1);
554
555 sv_catsv(retval, totpad);
556 sv_catsv(retval, ipad);
557 sv_catpvn(retval, nkey, klen);
558 }
823edd99 559 sv_catpvn(retval, " => ", 4);
560 if (indent >= 2) {
561 char *extra;
562 I32 elen = 0;
563 newapad = newSVsv(apad);
564 New(0, extra, klen+4+1, char);
565 while (elen < (klen+4))
566 extra[elen++] = ' ';
567 extra[elen] = '\0';
568 sv_catpvn(newapad, extra, elen);
569 Safefree(extra);
570 }
571 else
572 newapad = apad;
573
cea2e8a9 574 DD_dump(aTHX_ hval, SvPVX(sname), SvCUR(sname), retval, seenhv,
823edd99 575 postav, levelp, indent, pad, xpad, newapad, sep,
a2126434 576 freezer, toaster, purity, deepcopy, quotekeys, bless,
577 maxdepth);
823edd99 578 SvREFCNT_dec(sname);
579 Safefree(nkey);
580 if (indent >= 2)
581 SvREFCNT_dec(newapad);
582 }
583 if (i) {
cea2e8a9 584 SV *opad = sv_x(aTHX_ Nullsv, SvPVX(xpad), SvCUR(xpad), *levelp-1);
823edd99 585 sv_catsv(retval, totpad);
586 sv_catsv(retval, opad);
587 SvREFCNT_dec(opad);
588 }
589 if (name[0] == '%')
590 sv_catpvn(retval, ")", 1);
591 else
592 sv_catpvn(retval, "}", 1);
593 SvREFCNT_dec(iname);
594 SvREFCNT_dec(totpad);
595 }
596 else if (realtype == SVt_PVCV) {
597 sv_catpvn(retval, "sub { \"DUMMY\" }", 15);
598 if (purity)
599 warn("Encountered CODE ref, using dummy placeholder");
600 }
601 else {
602 warn("cannot handle ref type %ld", realtype);
603 }
604
605 if (realpack) { /* free blessed allocs */
606 if (indent >= 2) {
607 SvREFCNT_dec(apad);
608 apad = blesspad;
609 }
610 sv_catpvn(retval, ", '", 3);
611 sv_catpvn(retval, realpack, strlen(realpack));
612 sv_catpvn(retval, "' )", 3);
613 if (toaster && SvPOK(toaster) && SvCUR(toaster)) {
614 sv_catpvn(retval, "->", 2);
615 sv_catsv(retval, toaster);
616 sv_catpvn(retval, "()", 2);
617 }
618 }
619 SvREFCNT_dec(ipad);
620 (*levelp)--;
621 }
622 else {
623 STRLEN i;
624
625 if (namelen) {
626 (void) sprintf(id, "0x%lx", (unsigned long)val);
627 if ((svp = hv_fetch(seenhv, id, (idlen = strlen(id)), FALSE)) &&
628 (sv = *svp) && SvROK(sv) &&
7820172a 629 (seenentry = (AV*)SvRV(sv)))
630 {
823edd99 631 SV *othername;
7820172a 632 if ((svp = av_fetch(seenentry, 0, FALSE)) && (othername = *svp)
633 && (svp = av_fetch(seenentry, 2, FALSE)) && *svp && SvIV(*svp) > 0)
634 {
635 sv_catpvn(retval, "${", 2);
823edd99 636 sv_catsv(retval, othername);
7820172a 637 sv_catpvn(retval, "}", 1);
823edd99 638 return 1;
639 }
640 }
641 else {
642 SV *namesv;
7820172a 643 namesv = newSVpvn("\\", 1);
823edd99 644 sv_catpvn(namesv, name, namelen);
645 seenentry = newAV();
646 av_push(seenentry, namesv);
7820172a 647 av_push(seenentry, newRV(val));
823edd99 648 (void)hv_store(seenhv, id, strlen(id), newRV((SV*)seenentry), 0);
649 SvREFCNT_dec(seenentry);
650 }
651 }
7820172a 652
823edd99 653 if (SvIOK(val)) {
654 STRLEN len;
0e8b3009 655 if (SvIsUV(val))
5e8f63cb 656 (void) sprintf(tmpbuf, "%"UVuf, SvUV(val));
0e8b3009 657 else
658 (void) sprintf(tmpbuf, "%"IVdf, SvIV(val));
823edd99 659 len = strlen(tmpbuf);
660 sv_catpvn(retval, tmpbuf, len);
823edd99 661 }
662 else if (realtype == SVt_PVGV) {/* GLOBs can end up with scribbly names */
663 c = SvPV(val, i);
664 ++c; --i; /* just get the name */
665 if (i >= 6 && strncmp(c, "main::", 6) == 0) {
666 c += 4;
667 i -= 4;
668 }
669 if (needs_quote(c)) {
670 sv_grow(retval, SvCUR(retval)+6+2*i);
671 r = SvPVX(retval)+SvCUR(retval);
672 r[0] = '*'; r[1] = '{'; r[2] = '\'';
673 i += esc_q(r+3, c, i);
674 i += 3;
675 r[i++] = '\''; r[i++] = '}';
676 r[i] = '\0';
677 }
678 else {
679 sv_grow(retval, SvCUR(retval)+i+2);
680 r = SvPVX(retval)+SvCUR(retval);
681 r[0] = '*'; strcpy(r+1, c);
682 i++;
683 }
7820172a 684 SvCUR_set(retval, SvCUR(retval)+i);
823edd99 685
686 if (purity) {
687 static char *entries[] = { "{SCALAR}", "{ARRAY}", "{HASH}" };
688 static STRLEN sizes[] = { 8, 7, 6 };
689 SV *e;
7820172a 690 SV *nname = newSVpvn("", 0);
691 SV *newapad = newSVpvn("", 0);
823edd99 692 GV *gv = (GV*)val;
693 I32 j;
694
695 for (j=0; j<3; j++) {
696 e = ((j == 0) ? GvSV(gv) : (j == 1) ? (SV*)GvAV(gv) : (SV*)GvHV(gv));
7820172a 697 if (!e)
698 continue;
699 if (j == 0 && !SvOK(e))
700 continue;
701
702 {
823edd99 703 I32 nlevel = 0;
7820172a 704 SV *postentry = newSVpvn(r,i);
823edd99 705
706 sv_setsv(nname, postentry);
707 sv_catpvn(nname, entries[j], sizes[j]);
708 sv_catpvn(postentry, " = ", 3);
709 av_push(postav, postentry);
710 e = newRV(e);
711
712 SvCUR(newapad) = 0;
713 if (indent >= 2)
cea2e8a9 714 (void)sv_x(aTHX_ newapad, " ", 1, SvCUR(postentry));
823edd99 715
cea2e8a9 716 DD_dump(aTHX_ e, SvPVX(nname), SvCUR(nname), postentry,
823edd99 717 seenhv, postav, &nlevel, indent, pad, xpad,
718 newapad, sep, freezer, toaster, purity,
a2126434 719 deepcopy, quotekeys, bless, maxdepth);
823edd99 720 SvREFCNT_dec(e);
721 }
722 }
723
724 SvREFCNT_dec(newapad);
725 SvREFCNT_dec(nname);
726 }
727 }
7820172a 728 else if (val == &PL_sv_undef || !SvOK(val)) {
729 sv_catpvn(retval, "undef", 5);
730 }
823edd99 731 else {
732 c = SvPV(val, i);
dc71dc59 733 if (DO_UTF8(val))
6cde4e94 734 i += esc_q_utf8(aTHX_ retval, c, i);
dc71dc59 735 else {
736 sv_grow(retval, SvCUR(retval)+3+2*i); /* 3: ""\0 */
737 r = SvPVX(retval) + SvCUR(retval);
738 r[0] = '\'';
739 i += esc_q(r+1, c, i);
740 ++i;
741 r[i++] = '\'';
742 r[i] = '\0';
743 SvCUR_set(retval, SvCUR(retval)+i);
744 }
823edd99 745 }
823edd99 746 }
747
7820172a 748 if (idlen) {
749 if (deepcopy)
750 (void)hv_delete(seenhv, id, idlen, G_DISCARD);
751 else if (namelen && seenentry) {
752 SV *mark = *av_fetch(seenentry, 2, TRUE);
753 sv_setiv(mark,1);
754 }
755 }
823edd99 756 return 1;
757}
758
759
760MODULE = Data::Dumper PACKAGE = Data::Dumper PREFIX = Data_Dumper_
761
762#
763# This is the exact equivalent of Dump. Well, almost. The things that are
764# different as of now (due to Laziness):
765# * doesnt do double-quotes yet.
766#
767
768void
769Data_Dumper_Dumpxs(href, ...)
770 SV *href;
771 PROTOTYPE: $;$$
772 PPCODE:
773 {
774 HV *hv;
775 SV *retval, *valstr;
776 HV *seenhv = Nullhv;
777 AV *postav, *todumpav, *namesav;
778 I32 level = 0;
779 I32 indent, terse, useqq, i, imax, postlen;
780 SV **svp;
781 SV *val, *name, *pad, *xpad, *apad, *sep, *tmp, *varname;
782 SV *freezer, *toaster, *bless;
7b0972df 783 I32 purity, deepcopy, quotekeys, maxdepth = 0;
823edd99 784 char tmpbuf[1024];
785 I32 gimme = GIMME;
786
787 if (!SvROK(href)) { /* call new to get an object first */
0f1923bd 788 if (items < 2)
789 croak("Usage: Data::Dumper::Dumpxs(PACKAGE, VAL_ARY_REF, [NAME_ARY_REF])");
823edd99 790
791 ENTER;
792 SAVETMPS;
793
794 PUSHMARK(sp);
795 XPUSHs(href);
0f1923bd 796 XPUSHs(sv_2mortal(newSVsv(ST(1))));
797 if (items >= 3)
798 XPUSHs(sv_2mortal(newSVsv(ST(2))));
823edd99 799 PUTBACK;
800 i = perl_call_method("new", G_SCALAR);
801 SPAGAIN;
802 if (i)
803 href = newSVsv(POPs);
804
805 PUTBACK;
806 FREETMPS;
807 LEAVE;
808 if (i)
809 (void)sv_2mortal(href);
810 }
811
812 todumpav = namesav = Nullav;
813 seenhv = Nullhv;
814 val = pad = xpad = apad = sep = tmp = varname
3280af22 815 = freezer = toaster = bless = &PL_sv_undef;
823edd99 816 name = sv_newmortal();
817 indent = 2;
818 terse = useqq = purity = deepcopy = 0;
819 quotekeys = 1;
6cde4e94 820
7820172a 821 retval = newSVpvn("", 0);
823edd99 822 if (SvROK(href)
823 && (hv = (HV*)SvRV((SV*)href))
824 && SvTYPE(hv) == SVt_PVHV) {
825
826 if ((svp = hv_fetch(hv, "seen", 4, FALSE)) && SvROK(*svp))
827 seenhv = (HV*)SvRV(*svp);
828 if ((svp = hv_fetch(hv, "todump", 6, FALSE)) && SvROK(*svp))
829 todumpav = (AV*)SvRV(*svp);
830 if ((svp = hv_fetch(hv, "names", 5, FALSE)) && SvROK(*svp))
831 namesav = (AV*)SvRV(*svp);
832 if ((svp = hv_fetch(hv, "indent", 6, FALSE)))
833 indent = SvIV(*svp);
834 if ((svp = hv_fetch(hv, "purity", 6, FALSE)))
835 purity = SvIV(*svp);
836 if ((svp = hv_fetch(hv, "terse", 5, FALSE)))
837 terse = SvTRUE(*svp);
838 if ((svp = hv_fetch(hv, "useqq", 5, FALSE)))
839 useqq = SvTRUE(*svp);
840 if ((svp = hv_fetch(hv, "pad", 3, FALSE)))
841 pad = *svp;
842 if ((svp = hv_fetch(hv, "xpad", 4, FALSE)))
843 xpad = *svp;
844 if ((svp = hv_fetch(hv, "apad", 4, FALSE)))
845 apad = *svp;
846 if ((svp = hv_fetch(hv, "sep", 3, FALSE)))
847 sep = *svp;
848 if ((svp = hv_fetch(hv, "varname", 7, FALSE)))
849 varname = *svp;
850 if ((svp = hv_fetch(hv, "freezer", 7, FALSE)))
851 freezer = *svp;
852 if ((svp = hv_fetch(hv, "toaster", 7, FALSE)))
853 toaster = *svp;
854 if ((svp = hv_fetch(hv, "deepcopy", 8, FALSE)))
855 deepcopy = SvTRUE(*svp);
856 if ((svp = hv_fetch(hv, "quotekeys", 9, FALSE)))
857 quotekeys = SvTRUE(*svp);
858 if ((svp = hv_fetch(hv, "bless", 5, FALSE)))
859 bless = *svp;
a2126434 860 if ((svp = hv_fetch(hv, "maxdepth", 8, FALSE)))
861 maxdepth = SvIV(*svp);
823edd99 862 postav = newAV();
863
864 if (todumpav)
865 imax = av_len(todumpav);
866 else
867 imax = -1;
7820172a 868 valstr = newSVpvn("",0);
823edd99 869 for (i = 0; i <= imax; ++i) {
870 SV *newapad;
6cde4e94 871
823edd99 872 av_clear(postav);
873 if ((svp = av_fetch(todumpav, i, FALSE)))
874 val = *svp;
875 else
3280af22 876 val = &PL_sv_undef;
823edd99 877 if ((svp = av_fetch(namesav, i, TRUE)))
878 sv_setsv(name, *svp);
879 else
8063af02 880 (void)SvOK_off(name);
6cde4e94 881
823edd99 882 if (SvOK(name)) {
883 if ((SvPVX(name))[0] == '*') {
884 if (SvROK(val)) {
885 switch (SvTYPE(SvRV(val))) {
886 case SVt_PVAV:
887 (SvPVX(name))[0] = '@';
888 break;
889 case SVt_PVHV:
890 (SvPVX(name))[0] = '%';
891 break;
892 case SVt_PVCV:
893 (SvPVX(name))[0] = '*';
894 break;
895 default:
896 (SvPVX(name))[0] = '$';
897 break;
898 }
899 }
900 else
901 (SvPVX(name))[0] = '$';
902 }
903 else if ((SvPVX(name))[0] != '$')
904 sv_insert(name, 0, 0, "$", 1);
905 }
906 else {
907 STRLEN nchars = 0;
908 sv_setpvn(name, "$", 1);
909 sv_catsv(name, varname);
faccc32b 910 (void) sprintf(tmpbuf, "%"IVdf, (IV)(i+1));
823edd99 911 nchars = strlen(tmpbuf);
912 sv_catpvn(name, tmpbuf, nchars);
913 }
6cde4e94 914
823edd99 915 if (indent >= 2) {
cea2e8a9 916 SV *tmpsv = sv_x(aTHX_ Nullsv, " ", 1, SvCUR(name)+3);
823edd99 917 newapad = newSVsv(apad);
918 sv_catsv(newapad, tmpsv);
919 SvREFCNT_dec(tmpsv);
920 }
921 else
922 newapad = apad;
6cde4e94 923
cea2e8a9 924 DD_dump(aTHX_ val, SvPVX(name), SvCUR(name), valstr, seenhv,
823edd99 925 postav, &level, indent, pad, xpad, newapad, sep,
926 freezer, toaster, purity, deepcopy, quotekeys,
a2126434 927 bless, maxdepth);
6cde4e94 928
823edd99 929 if (indent >= 2)
930 SvREFCNT_dec(newapad);
931
932 postlen = av_len(postav);
933 if (postlen >= 0 || !terse) {
934 sv_insert(valstr, 0, 0, " = ", 3);
935 sv_insert(valstr, 0, 0, SvPVX(name), SvCUR(name));
936 sv_catpvn(valstr, ";", 1);
937 }
938 sv_catsv(retval, pad);
939 sv_catsv(retval, valstr);
940 sv_catsv(retval, sep);
941 if (postlen >= 0) {
942 I32 i;
943 sv_catsv(retval, pad);
944 for (i = 0; i <= postlen; ++i) {
945 SV *elem;
946 svp = av_fetch(postav, i, FALSE);
947 if (svp && (elem = *svp)) {
948 sv_catsv(retval, elem);
949 if (i < postlen) {
950 sv_catpvn(retval, ";", 1);
951 sv_catsv(retval, sep);
952 sv_catsv(retval, pad);
953 }
954 }
955 }
956 sv_catpvn(retval, ";", 1);
957 sv_catsv(retval, sep);
958 }
959 sv_setpvn(valstr, "", 0);
960 if (gimme == G_ARRAY) {
961 XPUSHs(sv_2mortal(retval));
962 if (i < imax) /* not the last time thro ? */
7820172a 963 retval = newSVpvn("",0);
823edd99 964 }
965 }
966 SvREFCNT_dec(postav);
967 SvREFCNT_dec(valstr);
968 }
969 else
970 croak("Call to new() method failed to return HASH ref");
971 if (gimme == G_SCALAR)
972 XPUSHs(sv_2mortal(retval));
973 }
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