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