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[perl5.git] / ext / Data / Dumper / Dumper.xs
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c5be433b 1#define PERL_NO_GET_CONTEXT
823edd99
GS
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
GS
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
GS
23static I32 num_q (char *s, STRLEN slen);
24static I32 esc_q (char *dest, char *src, STRLEN slen);
cea2e8a9
GS
25static SV *sv_x (pTHX_ SV *sv, char *str, STRLEN len, I32 n);
26static I32 DD_dump (pTHX_ SV *val, char *name, STRLEN namelen, SV *retval,
20ce7b12
GS
27 HV *seenhv, AV *postav, I32 *levelp, I32 indent,
28 SV *pad, SV *xpad, SV *apad, SV *sep,
29 SV *freezer, SV *toaster,
30 I32 purity, I32 deepcopy, I32 quotekeys, SV *bless);
823edd99
GS
31
32/* does a string need to be protected? */
33static I32
34needs_quote(register char *s)
35{
36TOP:
37 if (s[0] == ':') {
38 if (*++s) {
39 if (*s++ != ':')
40 return 1;
41 }
42 else
43 return 1;
44 }
45 if (isIDFIRST(*s)) {
46 while (*++s)
47 if (!isALNUM(*s))
48 if (*s == ':')
49 goto TOP;
50 else
51 return 1;
52 }
53 else
54 return 1;
55 return 0;
56}
57
58/* count the number of "'"s and "\"s in string */
59static I32
6c1ab3c2 60num_q(register char *s, register STRLEN slen)
823edd99
GS
61{
62 register I32 ret = 0;
6c1ab3c2
SR
63
64 while (slen > 0) {
823edd99
GS
65 if (*s == '\'' || *s == '\\')
66 ++ret;
67 ++s;
6c1ab3c2 68 --slen;
823edd99
GS
69 }
70 return ret;
71}
72
73
74/* returns number of chars added to escape "'"s and "\"s in s */
75/* slen number of characters in s will be escaped */
76/* destination must be long enough for additional chars */
77static I32
78esc_q(register char *d, register char *s, register STRLEN slen)
79{
80 register I32 ret = 0;
81
82 while (slen > 0) {
83 switch (*s) {
84 case '\'':
85 case '\\':
86 *d = '\\';
87 ++d; ++ret;
88 default:
89 *d = *s;
90 ++d; ++s; --slen;
91 break;
92 }
93 }
94 return ret;
95}
96
97/* append a repeated string to an SV */
98static SV *
cea2e8a9 99sv_x(pTHX_ SV *sv, register char *str, STRLEN len, I32 n)
823edd99
GS
100{
101 if (sv == Nullsv)
7820172a 102 sv = newSVpvn("", 0);
823edd99
GS
103 else
104 assert(SvTYPE(sv) >= SVt_PV);
105
106 if (n > 0) {
107 SvGROW(sv, len*n + SvCUR(sv) + 1);
108 if (len == 1) {
109 char *start = SvPVX(sv) + SvCUR(sv);
110 SvCUR(sv) += n;
111 start[n] = '\0';
112 while (n > 0)
113 start[--n] = str[0];
114 }
115 else
116 while (n > 0) {
117 sv_catpvn(sv, str, len);
118 --n;
119 }
120 }
121 return sv;
122}
123
124/*
125 * This ought to be split into smaller functions. (it is one long function since
126 * it exactly parallels the perl version, which was one long thing for
127 * efficiency raisins.) Ugggh!
128 */
129static I32
cea2e8a9 130DD_dump(pTHX_ SV *val, char *name, STRLEN namelen, SV *retval, HV *seenhv,
823edd99
GS
131 AV *postav, I32 *levelp, I32 indent, SV *pad, SV *xpad,
132 SV *apad, SV *sep, SV *freezer, SV *toaster, I32 purity,
133 I32 deepcopy, I32 quotekeys, SV *bless)
134{
135 char tmpbuf[128];
136 U32 i;
137 char *c, *r, *realpack, id[128];
138 SV **svp;
7820172a 139 SV *sv, *ipad, *ival;
823edd99 140 SV *blesspad = Nullsv;
7820172a 141 AV *seenentry = Nullav;
823edd99
GS
142 char *iname;
143 STRLEN inamelen, idlen = 0;
144 U32 flags;
145 U32 realtype;
146
147 if (!val)
148 return 0;
149
150 flags = SvFLAGS(val);
151 realtype = SvTYPE(val);
152
153 if (SvGMAGICAL(val))
154 mg_get(val);
823edd99
GS
155 if (SvROK(val)) {
156
157 if (SvOBJECT(SvRV(val)) && freezer &&
158 SvPOK(freezer) && SvCUR(freezer))
159 {
160 dSP; ENTER; SAVETMPS; PUSHMARK(sp);
161 XPUSHs(val); PUTBACK;
162 i = perl_call_method(SvPVX(freezer), G_EVAL|G_SCALAR);
163 SPAGAIN;
7820172a 164 if (SvTRUE(ERRSV))
823edd99 165 warn("WARNING(Freezer method call failed): %s",
7820172a 166 SvPVX(ERRSV));
823edd99
GS
167 else if (i)
168 val = newSVsv(POPs);
169 PUTBACK; FREETMPS; LEAVE;
170 if (i)
171 (void)sv_2mortal(val);
172 }
173
174 ival = SvRV(val);
175 flags = SvFLAGS(ival);
176 realtype = SvTYPE(ival);
177 (void) sprintf(id, "0x%lx", (unsigned long)ival);
178 idlen = strlen(id);
179 if (SvOBJECT(ival))
180 realpack = HvNAME(SvSTASH(ival));
181 else
182 realpack = Nullch;
7820172a
GS
183
184 /* if it has a name, we need to either look it up, or keep a tab
185 * on it so we know when we hit it later
186 */
187 if (namelen) {
188 if ((svp = hv_fetch(seenhv, id, idlen, FALSE))
189 && (sv = *svp) && SvROK(sv) && (seenentry = (AV*)SvRV(sv)))
190 {
191 SV *othername;
192 if ((svp = av_fetch(seenentry, 0, FALSE))
193 && (othername = *svp))
194 {
195 if (purity && *levelp > 0) {
196 SV *postentry;
197
198 if (realtype == SVt_PVHV)
199 sv_catpvn(retval, "{}", 2);
200 else if (realtype == SVt_PVAV)
201 sv_catpvn(retval, "[]", 2);
202 else
203 sv_catpvn(retval, "''", 2);
204 postentry = newSVpvn(name, namelen);
205 sv_catpvn(postentry, " = ", 3);
206 sv_catsv(postentry, othername);
207 av_push(postav, postentry);
208 }
209 else {
210 if (name[0] == '@' || name[0] == '%') {
211 if ((SvPVX(othername))[0] == '\\' &&
212 (SvPVX(othername))[1] == name[0]) {
213 sv_catpvn(retval, SvPVX(othername)+1,
214 SvCUR(othername)-1);
215 }
216 else {
217 sv_catpvn(retval, name, 1);
218 sv_catpvn(retval, "{", 1);
219 sv_catsv(retval, othername);
220 sv_catpvn(retval, "}", 1);
221 }
823edd99 222 }
7820172a 223 else
823edd99 224 sv_catsv(retval, othername);
823edd99 225 }
7820172a
GS
226 return 1;
227 }
228 else {
229 warn("ref name not found for %s", id);
230 return 0;
823edd99 231 }
823edd99 232 }
7820172a
GS
233 else { /* store our name and continue */
234 SV *namesv;
235 if (name[0] == '@' || name[0] == '%') {
236 namesv = newSVpvn("\\", 1);
237 sv_catpvn(namesv, name, namelen);
238 }
239 else if (realtype == SVt_PVCV && name[0] == '*') {
240 namesv = newSVpvn("\\", 2);
241 sv_catpvn(namesv, name, namelen);
242 (SvPVX(namesv))[1] = '&';
243 }
244 else
245 namesv = newSVpvn(name, namelen);
246 seenentry = newAV();
247 av_push(seenentry, namesv);
248 (void)SvREFCNT_inc(val);
249 av_push(seenentry, val);
250 (void)hv_store(seenhv, id, strlen(id),
251 newRV((SV*)seenentry), 0);
252 SvREFCNT_dec(seenentry);
823edd99 253 }
823edd99 254 }
823edd99 255
7894fbab
GS
256 if (realpack) {
257 if (*realpack == 'R' && strEQ(realpack, "Regexp")) {
258 STRLEN rlen;
259 char *rval = SvPV(val, rlen);
260 char *slash = strchr(rval, '/');
261 sv_catpvn(retval, "qr/", 3);
262 while (slash) {
263 sv_catpvn(retval, rval, slash-rval);
264 sv_catpvn(retval, "\\/", 2);
265 rlen -= slash-rval+1;
266 rval = slash+1;
267 slash = strchr(rval, '/');
268 }
269 sv_catpvn(retval, rval, rlen);
270 sv_catpvn(retval, "/", 1);
271 return 1;
272 }
273 else { /* we have a blessed ref */
274 STRLEN blesslen;
275 char *blessstr = SvPV(bless, blesslen);
276 sv_catpvn(retval, blessstr, blesslen);
277 sv_catpvn(retval, "( ", 2);
278 if (indent >= 2) {
279 blesspad = apad;
280 apad = newSVsv(apad);
281 sv_x(aTHX_ apad, " ", 1, blesslen+2);
282 }
823edd99
GS
283 }
284 }
285
7894fbab
GS
286 (*levelp)++;
287 ipad = sv_x(aTHX_ Nullsv, SvPVX(xpad), SvCUR(xpad), *levelp);
288
7820172a
GS
289 if (realtype <= SVt_PVBM) { /* scalar ref */
290 SV *namesv = newSVpvn("${", 2);
291 sv_catpvn(namesv, name, namelen);
292 sv_catpvn(namesv, "}", 1);
293 if (realpack) { /* blessed */
823edd99 294 sv_catpvn(retval, "do{\\(my $o = ", 13);
cea2e8a9 295 DD_dump(aTHX_ ival, SvPVX(namesv), SvCUR(namesv), retval, seenhv,
7820172a 296 postav, levelp, indent, pad, xpad, apad, sep,
823edd99
GS
297 freezer, toaster, purity, deepcopy, quotekeys, bless);
298 sv_catpvn(retval, ")}", 2);
7820172a 299 } /* plain */
823edd99
GS
300 else {
301 sv_catpvn(retval, "\\", 1);
cea2e8a9 302 DD_dump(aTHX_ ival, SvPVX(namesv), SvCUR(namesv), retval, seenhv,
7820172a 303 postav, levelp, indent, pad, xpad, apad, sep,
823edd99
GS
304 freezer, toaster, purity, deepcopy, quotekeys, bless);
305 }
7820172a
GS
306 SvREFCNT_dec(namesv);
307 }
308 else if (realtype == SVt_PVGV) { /* glob ref */
309 SV *namesv = newSVpvn("*{", 2);
310 sv_catpvn(namesv, name, namelen);
311 sv_catpvn(namesv, "}", 1);
312 sv_catpvn(retval, "\\", 1);
cea2e8a9 313 DD_dump(aTHX_ ival, SvPVX(namesv), SvCUR(namesv), retval, seenhv,
7820172a
GS
314 postav, levelp, indent, pad, xpad, apad, sep,
315 freezer, toaster, purity, deepcopy, quotekeys, bless);
316 SvREFCNT_dec(namesv);
823edd99
GS
317 }
318 else if (realtype == SVt_PVAV) {
319 SV *totpad;
320 I32 ix = 0;
321 I32 ixmax = av_len((AV *)ival);
322
323 SV *ixsv = newSViv(0);
324 /* allowing for a 24 char wide array index */
325 New(0, iname, namelen+28, char);
326 (void)strcpy(iname, name);
327 inamelen = namelen;
328 if (name[0] == '@') {
329 sv_catpvn(retval, "(", 1);
330 iname[0] = '$';
331 }
332 else {
333 sv_catpvn(retval, "[", 1);
7820172a
GS
334 /* omit "->" in $foo{bar}->[0], but not in ${$foo}->[0] */
335 /*if (namelen > 0
336 && name[namelen-1] != ']' && name[namelen-1] != '}'
337 && (namelen < 4 || (name[1] != '{' && name[2] != '{')))*/
338 if ((namelen > 0
339 && name[namelen-1] != ']' && name[namelen-1] != '}')
340 || (namelen > 4
341 && (name[1] == '{'
342 || (name[0] == '\\' && name[2] == '{'))))
343 {
823edd99
GS
344 iname[inamelen++] = '-'; iname[inamelen++] = '>';
345 iname[inamelen] = '\0';
346 }
347 }
348 if (iname[0] == '*' && iname[inamelen-1] == '}' && inamelen >= 8 &&
349 (instr(iname+inamelen-8, "{SCALAR}") ||
350 instr(iname+inamelen-7, "{ARRAY}") ||
351 instr(iname+inamelen-6, "{HASH}"))) {
352 iname[inamelen++] = '-'; iname[inamelen++] = '>';
353 }
354 iname[inamelen++] = '['; iname[inamelen] = '\0';
355 totpad = newSVsv(sep);
356 sv_catsv(totpad, pad);
357 sv_catsv(totpad, apad);
358
359 for (ix = 0; ix <= ixmax; ++ix) {
360 STRLEN ilen;
361 SV *elem;
362 svp = av_fetch((AV*)ival, ix, FALSE);
363 if (svp)
364 elem = *svp;
365 else
3280af22 366 elem = &PL_sv_undef;
823edd99
GS
367
368 ilen = inamelen;
369 sv_setiv(ixsv, ix);
370 (void) sprintf(iname+ilen, "%ld", ix);
371 ilen = strlen(iname);
372 iname[ilen++] = ']'; iname[ilen] = '\0';
373 if (indent >= 3) {
374 sv_catsv(retval, totpad);
375 sv_catsv(retval, ipad);
376 sv_catpvn(retval, "#", 1);
377 sv_catsv(retval, ixsv);
378 }
379 sv_catsv(retval, totpad);
380 sv_catsv(retval, ipad);
cea2e8a9 381 DD_dump(aTHX_ elem, iname, ilen, retval, seenhv, postav,
823edd99
GS
382 levelp, indent, pad, xpad, apad, sep,
383 freezer, toaster, purity, deepcopy, quotekeys, bless);
384 if (ix < ixmax)
385 sv_catpvn(retval, ",", 1);
386 }
387 if (ixmax >= 0) {
cea2e8a9 388 SV *opad = sv_x(aTHX_ Nullsv, SvPVX(xpad), SvCUR(xpad), (*levelp)-1);
823edd99
GS
389 sv_catsv(retval, totpad);
390 sv_catsv(retval, opad);
391 SvREFCNT_dec(opad);
392 }
393 if (name[0] == '@')
394 sv_catpvn(retval, ")", 1);
395 else
396 sv_catpvn(retval, "]", 1);
397 SvREFCNT_dec(ixsv);
398 SvREFCNT_dec(totpad);
399 Safefree(iname);
400 }
401 else if (realtype == SVt_PVHV) {
402 SV *totpad, *newapad;
403 SV *iname, *sname;
404 HE *entry;
405 char *key;
406 I32 klen;
407 SV *hval;
408
7820172a 409 iname = newSVpvn(name, namelen);
823edd99
GS
410 if (name[0] == '%') {
411 sv_catpvn(retval, "(", 1);
412 (SvPVX(iname))[0] = '$';
413 }
414 else {
415 sv_catpvn(retval, "{", 1);
7820172a
GS
416 /* omit "->" in $foo[0]->{bar}, but not in ${$foo}->{bar} */
417 if ((namelen > 0
418 && name[namelen-1] != ']' && name[namelen-1] != '}')
419 || (namelen > 4
420 && (name[1] == '{'
421 || (name[0] == '\\' && name[2] == '{'))))
422 {
823edd99
GS
423 sv_catpvn(iname, "->", 2);
424 }
425 }
426 if (name[0] == '*' && name[namelen-1] == '}' && namelen >= 8 &&
427 (instr(name+namelen-8, "{SCALAR}") ||
428 instr(name+namelen-7, "{ARRAY}") ||
429 instr(name+namelen-6, "{HASH}"))) {
430 sv_catpvn(iname, "->", 2);
431 }
432 sv_catpvn(iname, "{", 1);
433 totpad = newSVsv(sep);
434 sv_catsv(totpad, pad);
435 sv_catsv(totpad, apad);
436
437 (void)hv_iterinit((HV*)ival);
438 i = 0;
439 while ((entry = hv_iternext((HV*)ival))) {
440 char *nkey;
441 I32 nticks = 0;
442
443 if (i)
444 sv_catpvn(retval, ",", 1);
445 i++;
446 key = hv_iterkey(entry, &klen);
447 hval = hv_iterval((HV*)ival, entry);
448
449 if (quotekeys || needs_quote(key)) {
6c1ab3c2 450 nticks = num_q(key, klen);
823edd99
GS
451 New(0, nkey, klen+nticks+3, char);
452 nkey[0] = '\'';
453 if (nticks)
454 klen += esc_q(nkey+1, key, klen);
455 else
456 (void)Copy(key, nkey+1, klen, char);
457 nkey[++klen] = '\'';
458 nkey[++klen] = '\0';
459 }
460 else {
461 New(0, nkey, klen, char);
462 (void)Copy(key, nkey, klen, char);
463 }
464
465 sname = newSVsv(iname);
466 sv_catpvn(sname, nkey, klen);
467 sv_catpvn(sname, "}", 1);
468
469 sv_catsv(retval, totpad);
470 sv_catsv(retval, ipad);
471 sv_catpvn(retval, nkey, klen);
472 sv_catpvn(retval, " => ", 4);
473 if (indent >= 2) {
474 char *extra;
475 I32 elen = 0;
476 newapad = newSVsv(apad);
477 New(0, extra, klen+4+1, char);
478 while (elen < (klen+4))
479 extra[elen++] = ' ';
480 extra[elen] = '\0';
481 sv_catpvn(newapad, extra, elen);
482 Safefree(extra);
483 }
484 else
485 newapad = apad;
486
cea2e8a9 487 DD_dump(aTHX_ hval, SvPVX(sname), SvCUR(sname), retval, seenhv,
823edd99
GS
488 postav, levelp, indent, pad, xpad, newapad, sep,
489 freezer, toaster, purity, deepcopy, quotekeys, bless);
490 SvREFCNT_dec(sname);
491 Safefree(nkey);
492 if (indent >= 2)
493 SvREFCNT_dec(newapad);
494 }
495 if (i) {
cea2e8a9 496 SV *opad = sv_x(aTHX_ Nullsv, SvPVX(xpad), SvCUR(xpad), *levelp-1);
823edd99
GS
497 sv_catsv(retval, totpad);
498 sv_catsv(retval, opad);
499 SvREFCNT_dec(opad);
500 }
501 if (name[0] == '%')
502 sv_catpvn(retval, ")", 1);
503 else
504 sv_catpvn(retval, "}", 1);
505 SvREFCNT_dec(iname);
506 SvREFCNT_dec(totpad);
507 }
508 else if (realtype == SVt_PVCV) {
509 sv_catpvn(retval, "sub { \"DUMMY\" }", 15);
510 if (purity)
511 warn("Encountered CODE ref, using dummy placeholder");
512 }
513 else {
514 warn("cannot handle ref type %ld", realtype);
515 }
516
517 if (realpack) { /* free blessed allocs */
518 if (indent >= 2) {
519 SvREFCNT_dec(apad);
520 apad = blesspad;
521 }
522 sv_catpvn(retval, ", '", 3);
523 sv_catpvn(retval, realpack, strlen(realpack));
524 sv_catpvn(retval, "' )", 3);
525 if (toaster && SvPOK(toaster) && SvCUR(toaster)) {
526 sv_catpvn(retval, "->", 2);
527 sv_catsv(retval, toaster);
528 sv_catpvn(retval, "()", 2);
529 }
530 }
531 SvREFCNT_dec(ipad);
532 (*levelp)--;
533 }
534 else {
535 STRLEN i;
536
537 if (namelen) {
538 (void) sprintf(id, "0x%lx", (unsigned long)val);
539 if ((svp = hv_fetch(seenhv, id, (idlen = strlen(id)), FALSE)) &&
540 (sv = *svp) && SvROK(sv) &&
7820172a
GS
541 (seenentry = (AV*)SvRV(sv)))
542 {
823edd99 543 SV *othername;
7820172a
GS
544 if ((svp = av_fetch(seenentry, 0, FALSE)) && (othername = *svp)
545 && (svp = av_fetch(seenentry, 2, FALSE)) && *svp && SvIV(*svp) > 0)
546 {
547 sv_catpvn(retval, "${", 2);
823edd99 548 sv_catsv(retval, othername);
7820172a 549 sv_catpvn(retval, "}", 1);
823edd99
GS
550 return 1;
551 }
552 }
553 else {
554 SV *namesv;
7820172a 555 namesv = newSVpvn("\\", 1);
823edd99
GS
556 sv_catpvn(namesv, name, namelen);
557 seenentry = newAV();
558 av_push(seenentry, namesv);
7820172a 559 av_push(seenentry, newRV(val));
823edd99
GS
560 (void)hv_store(seenhv, id, strlen(id), newRV((SV*)seenentry), 0);
561 SvREFCNT_dec(seenentry);
562 }
563 }
7820172a 564
823edd99
GS
565 if (SvIOK(val)) {
566 STRLEN len;
567 i = SvIV(val);
568 (void) sprintf(tmpbuf, "%d", i);
569 len = strlen(tmpbuf);
570 sv_catpvn(retval, tmpbuf, len);
823edd99
GS
571 }
572 else if (realtype == SVt_PVGV) {/* GLOBs can end up with scribbly names */
573 c = SvPV(val, i);
574 ++c; --i; /* just get the name */
575 if (i >= 6 && strncmp(c, "main::", 6) == 0) {
576 c += 4;
577 i -= 4;
578 }
579 if (needs_quote(c)) {
580 sv_grow(retval, SvCUR(retval)+6+2*i);
581 r = SvPVX(retval)+SvCUR(retval);
582 r[0] = '*'; r[1] = '{'; r[2] = '\'';
583 i += esc_q(r+3, c, i);
584 i += 3;
585 r[i++] = '\''; r[i++] = '}';
586 r[i] = '\0';
587 }
588 else {
589 sv_grow(retval, SvCUR(retval)+i+2);
590 r = SvPVX(retval)+SvCUR(retval);
591 r[0] = '*'; strcpy(r+1, c);
592 i++;
593 }
7820172a 594 SvCUR_set(retval, SvCUR(retval)+i);
823edd99
GS
595
596 if (purity) {
597 static char *entries[] = { "{SCALAR}", "{ARRAY}", "{HASH}" };
598 static STRLEN sizes[] = { 8, 7, 6 };
599 SV *e;
7820172a
GS
600 SV *nname = newSVpvn("", 0);
601 SV *newapad = newSVpvn("", 0);
823edd99
GS
602 GV *gv = (GV*)val;
603 I32 j;
604
605 for (j=0; j<3; j++) {
606 e = ((j == 0) ? GvSV(gv) : (j == 1) ? (SV*)GvAV(gv) : (SV*)GvHV(gv));
7820172a
GS
607 if (!e)
608 continue;
609 if (j == 0 && !SvOK(e))
610 continue;
611
612 {
823edd99 613 I32 nlevel = 0;
7820172a 614 SV *postentry = newSVpvn(r,i);
823edd99
GS
615
616 sv_setsv(nname, postentry);
617 sv_catpvn(nname, entries[j], sizes[j]);
618 sv_catpvn(postentry, " = ", 3);
619 av_push(postav, postentry);
620 e = newRV(e);
621
622 SvCUR(newapad) = 0;
623 if (indent >= 2)
cea2e8a9 624 (void)sv_x(aTHX_ newapad, " ", 1, SvCUR(postentry));
823edd99 625
cea2e8a9 626 DD_dump(aTHX_ e, SvPVX(nname), SvCUR(nname), postentry,
823edd99
GS
627 seenhv, postav, &nlevel, indent, pad, xpad,
628 newapad, sep, freezer, toaster, purity,
629 deepcopy, quotekeys, bless);
630 SvREFCNT_dec(e);
631 }
632 }
633
634 SvREFCNT_dec(newapad);
635 SvREFCNT_dec(nname);
636 }
637 }
7820172a
GS
638 else if (val == &PL_sv_undef || !SvOK(val)) {
639 sv_catpvn(retval, "undef", 5);
640 }
823edd99
GS
641 else {
642 c = SvPV(val, i);
643 sv_grow(retval, SvCUR(retval)+3+2*i);
644 r = SvPVX(retval)+SvCUR(retval);
645 r[0] = '\'';
646 i += esc_q(r+1, c, i);
647 ++i;
648 r[i++] = '\'';
649 r[i] = '\0';
7820172a 650 SvCUR_set(retval, SvCUR(retval)+i);
823edd99 651 }
823edd99
GS
652 }
653
7820172a
GS
654 if (idlen) {
655 if (deepcopy)
656 (void)hv_delete(seenhv, id, idlen, G_DISCARD);
657 else if (namelen && seenentry) {
658 SV *mark = *av_fetch(seenentry, 2, TRUE);
659 sv_setiv(mark,1);
660 }
661 }
823edd99
GS
662 return 1;
663}
664
665
666MODULE = Data::Dumper PACKAGE = Data::Dumper PREFIX = Data_Dumper_
667
668#
669# This is the exact equivalent of Dump. Well, almost. The things that are
670# different as of now (due to Laziness):
671# * doesnt do double-quotes yet.
672#
673
674void
675Data_Dumper_Dumpxs(href, ...)
676 SV *href;
677 PROTOTYPE: $;$$
678 PPCODE:
679 {
680 HV *hv;
681 SV *retval, *valstr;
682 HV *seenhv = Nullhv;
683 AV *postav, *todumpav, *namesav;
684 I32 level = 0;
685 I32 indent, terse, useqq, i, imax, postlen;
686 SV **svp;
687 SV *val, *name, *pad, *xpad, *apad, *sep, *tmp, *varname;
688 SV *freezer, *toaster, *bless;
689 I32 purity, deepcopy, quotekeys;
690 char tmpbuf[1024];
691 I32 gimme = GIMME;
692
693 if (!SvROK(href)) { /* call new to get an object first */
694 SV *valarray;
695 SV *namearray;
696
697 if (items == 3) {
698 valarray = ST(1);
699 namearray = ST(2);
700 }
701 else
702 croak("Usage: Data::Dumper::Dumpxs(PACKAGE, VAL_ARY_REF, NAME_ARY_REF)");
703
704 ENTER;
705 SAVETMPS;
706
707 PUSHMARK(sp);
708 XPUSHs(href);
709 XPUSHs(sv_2mortal(newSVsv(valarray)));
710 XPUSHs(sv_2mortal(newSVsv(namearray)));
711 PUTBACK;
712 i = perl_call_method("new", G_SCALAR);
713 SPAGAIN;
714 if (i)
715 href = newSVsv(POPs);
716
717 PUTBACK;
718 FREETMPS;
719 LEAVE;
720 if (i)
721 (void)sv_2mortal(href);
722 }
723
724 todumpav = namesav = Nullav;
725 seenhv = Nullhv;
726 val = pad = xpad = apad = sep = tmp = varname
3280af22 727 = freezer = toaster = bless = &PL_sv_undef;
823edd99
GS
728 name = sv_newmortal();
729 indent = 2;
730 terse = useqq = purity = deepcopy = 0;
731 quotekeys = 1;
732
7820172a 733 retval = newSVpvn("", 0);
823edd99
GS
734 if (SvROK(href)
735 && (hv = (HV*)SvRV((SV*)href))
736 && SvTYPE(hv) == SVt_PVHV) {
737
738 if ((svp = hv_fetch(hv, "seen", 4, FALSE)) && SvROK(*svp))
739 seenhv = (HV*)SvRV(*svp);
740 if ((svp = hv_fetch(hv, "todump", 6, FALSE)) && SvROK(*svp))
741 todumpav = (AV*)SvRV(*svp);
742 if ((svp = hv_fetch(hv, "names", 5, FALSE)) && SvROK(*svp))
743 namesav = (AV*)SvRV(*svp);
744 if ((svp = hv_fetch(hv, "indent", 6, FALSE)))
745 indent = SvIV(*svp);
746 if ((svp = hv_fetch(hv, "purity", 6, FALSE)))
747 purity = SvIV(*svp);
748 if ((svp = hv_fetch(hv, "terse", 5, FALSE)))
749 terse = SvTRUE(*svp);
750 if ((svp = hv_fetch(hv, "useqq", 5, FALSE)))
751 useqq = SvTRUE(*svp);
752 if ((svp = hv_fetch(hv, "pad", 3, FALSE)))
753 pad = *svp;
754 if ((svp = hv_fetch(hv, "xpad", 4, FALSE)))
755 xpad = *svp;
756 if ((svp = hv_fetch(hv, "apad", 4, FALSE)))
757 apad = *svp;
758 if ((svp = hv_fetch(hv, "sep", 3, FALSE)))
759 sep = *svp;
760 if ((svp = hv_fetch(hv, "varname", 7, FALSE)))
761 varname = *svp;
762 if ((svp = hv_fetch(hv, "freezer", 7, FALSE)))
763 freezer = *svp;
764 if ((svp = hv_fetch(hv, "toaster", 7, FALSE)))
765 toaster = *svp;
766 if ((svp = hv_fetch(hv, "deepcopy", 8, FALSE)))
767 deepcopy = SvTRUE(*svp);
768 if ((svp = hv_fetch(hv, "quotekeys", 9, FALSE)))
769 quotekeys = SvTRUE(*svp);
770 if ((svp = hv_fetch(hv, "bless", 5, FALSE)))
771 bless = *svp;
772 postav = newAV();
773
774 if (todumpav)
775 imax = av_len(todumpav);
776 else
777 imax = -1;
7820172a 778 valstr = newSVpvn("",0);
823edd99
GS
779 for (i = 0; i <= imax; ++i) {
780 SV *newapad;
781
782 av_clear(postav);
783 if ((svp = av_fetch(todumpav, i, FALSE)))
784 val = *svp;
785 else
3280af22 786 val = &PL_sv_undef;
823edd99
GS
787 if ((svp = av_fetch(namesav, i, TRUE)))
788 sv_setsv(name, *svp);
789 else
790 SvOK_off(name);
791
792 if (SvOK(name)) {
793 if ((SvPVX(name))[0] == '*') {
794 if (SvROK(val)) {
795 switch (SvTYPE(SvRV(val))) {
796 case SVt_PVAV:
797 (SvPVX(name))[0] = '@';
798 break;
799 case SVt_PVHV:
800 (SvPVX(name))[0] = '%';
801 break;
802 case SVt_PVCV:
803 (SvPVX(name))[0] = '*';
804 break;
805 default:
806 (SvPVX(name))[0] = '$';
807 break;
808 }
809 }
810 else
811 (SvPVX(name))[0] = '$';
812 }
813 else if ((SvPVX(name))[0] != '$')
814 sv_insert(name, 0, 0, "$", 1);
815 }
816 else {
817 STRLEN nchars = 0;
818 sv_setpvn(name, "$", 1);
819 sv_catsv(name, varname);
820 (void) sprintf(tmpbuf, "%ld", i+1);
821 nchars = strlen(tmpbuf);
822 sv_catpvn(name, tmpbuf, nchars);
823 }
824
825 if (indent >= 2) {
cea2e8a9 826 SV *tmpsv = sv_x(aTHX_ Nullsv, " ", 1, SvCUR(name)+3);
823edd99
GS
827 newapad = newSVsv(apad);
828 sv_catsv(newapad, tmpsv);
829 SvREFCNT_dec(tmpsv);
830 }
831 else
832 newapad = apad;
833
cea2e8a9 834 DD_dump(aTHX_ val, SvPVX(name), SvCUR(name), valstr, seenhv,
823edd99
GS
835 postav, &level, indent, pad, xpad, newapad, sep,
836 freezer, toaster, purity, deepcopy, quotekeys,
837 bless);
838
839 if (indent >= 2)
840 SvREFCNT_dec(newapad);
841
842 postlen = av_len(postav);
843 if (postlen >= 0 || !terse) {
844 sv_insert(valstr, 0, 0, " = ", 3);
845 sv_insert(valstr, 0, 0, SvPVX(name), SvCUR(name));
846 sv_catpvn(valstr, ";", 1);
847 }
848 sv_catsv(retval, pad);
849 sv_catsv(retval, valstr);
850 sv_catsv(retval, sep);
851 if (postlen >= 0) {
852 I32 i;
853 sv_catsv(retval, pad);
854 for (i = 0; i <= postlen; ++i) {
855 SV *elem;
856 svp = av_fetch(postav, i, FALSE);
857 if (svp && (elem = *svp)) {
858 sv_catsv(retval, elem);
859 if (i < postlen) {
860 sv_catpvn(retval, ";", 1);
861 sv_catsv(retval, sep);
862 sv_catsv(retval, pad);
863 }
864 }
865 }
866 sv_catpvn(retval, ";", 1);
867 sv_catsv(retval, sep);
868 }
869 sv_setpvn(valstr, "", 0);
870 if (gimme == G_ARRAY) {
871 XPUSHs(sv_2mortal(retval));
872 if (i < imax) /* not the last time thro ? */
7820172a 873 retval = newSVpvn("",0);
823edd99
GS
874 }
875 }
876 SvREFCNT_dec(postav);
877 SvREFCNT_dec(valstr);
878 }
879 else
880 croak("Call to new() method failed to return HASH ref");
881 if (gimme == G_SCALAR)
882 XPUSHs(sv_2mortal(retval));
883 }