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[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
6c1ab3c2 22static I32 num_q _((char *s, STRLEN slen));
823edd99 23static I32 esc_q _((char *dest, char *src, STRLEN slen));
24static SV *sv_x _((SV *sv, char *str, STRLEN len, I32 n));
25static I32 DD_dump _((SV *val, char *name, STRLEN namelen, SV *retval,
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));
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 *
98sv_x(SV *sv, register char *str, STRLEN len, I32 n)
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
129DD_dump(SV *val, char *name, STRLEN namelen, SV *retval, HV *seenhv,
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 }
254
255 (*levelp)++;
256 ipad = sv_x(Nullsv, SvPVX(xpad), SvCUR(xpad), *levelp);
257
258 if (realpack) { /* we have a blessed ref */
259 STRLEN blesslen;
260 char *blessstr = SvPV(bless, blesslen);
261 sv_catpvn(retval, blessstr, blesslen);
262 sv_catpvn(retval, "( ", 2);
263 if (indent >= 2) {
264 blesspad = apad;
265 apad = newSVsv(apad);
266 sv_x(apad, " ", 1, blesslen+2);
267 }
268 }
269
7820172a 270 if (realtype <= SVt_PVBM) { /* scalar ref */
271 SV *namesv = newSVpvn("${", 2);
272 sv_catpvn(namesv, name, namelen);
273 sv_catpvn(namesv, "}", 1);
274 if (realpack) { /* blessed */
823edd99 275 sv_catpvn(retval, "do{\\(my $o = ", 13);
7820172a 276 DD_dump(ival, SvPVX(namesv), SvCUR(namesv), retval, seenhv,
277 postav, levelp, indent, pad, xpad, apad, sep,
823edd99 278 freezer, toaster, purity, deepcopy, quotekeys, bless);
279 sv_catpvn(retval, ")}", 2);
7820172a 280 } /* plain */
823edd99 281 else {
282 sv_catpvn(retval, "\\", 1);
7820172a 283 DD_dump(ival, SvPVX(namesv), SvCUR(namesv), retval, seenhv,
284 postav, levelp, indent, pad, xpad, apad, sep,
823edd99 285 freezer, toaster, purity, deepcopy, quotekeys, bless);
286 }
7820172a 287 SvREFCNT_dec(namesv);
288 }
289 else if (realtype == SVt_PVGV) { /* glob ref */
290 SV *namesv = newSVpvn("*{", 2);
291 sv_catpvn(namesv, name, namelen);
292 sv_catpvn(namesv, "}", 1);
293 sv_catpvn(retval, "\\", 1);
294 DD_dump(ival, SvPVX(namesv), SvCUR(namesv), retval, seenhv,
295 postav, levelp, indent, pad, xpad, apad, sep,
296 freezer, toaster, purity, deepcopy, quotekeys, bless);
297 SvREFCNT_dec(namesv);
823edd99 298 }
299 else if (realtype == SVt_PVAV) {
300 SV *totpad;
301 I32 ix = 0;
302 I32 ixmax = av_len((AV *)ival);
303
304 SV *ixsv = newSViv(0);
305 /* allowing for a 24 char wide array index */
306 New(0, iname, namelen+28, char);
307 (void)strcpy(iname, name);
308 inamelen = namelen;
309 if (name[0] == '@') {
310 sv_catpvn(retval, "(", 1);
311 iname[0] = '$';
312 }
313 else {
314 sv_catpvn(retval, "[", 1);
7820172a 315 /* omit "->" in $foo{bar}->[0], but not in ${$foo}->[0] */
316 /*if (namelen > 0
317 && name[namelen-1] != ']' && name[namelen-1] != '}'
318 && (namelen < 4 || (name[1] != '{' && name[2] != '{')))*/
319 if ((namelen > 0
320 && name[namelen-1] != ']' && name[namelen-1] != '}')
321 || (namelen > 4
322 && (name[1] == '{'
323 || (name[0] == '\\' && name[2] == '{'))))
324 {
823edd99 325 iname[inamelen++] = '-'; iname[inamelen++] = '>';
326 iname[inamelen] = '\0';
327 }
328 }
329 if (iname[0] == '*' && iname[inamelen-1] == '}' && inamelen >= 8 &&
330 (instr(iname+inamelen-8, "{SCALAR}") ||
331 instr(iname+inamelen-7, "{ARRAY}") ||
332 instr(iname+inamelen-6, "{HASH}"))) {
333 iname[inamelen++] = '-'; iname[inamelen++] = '>';
334 }
335 iname[inamelen++] = '['; iname[inamelen] = '\0';
336 totpad = newSVsv(sep);
337 sv_catsv(totpad, pad);
338 sv_catsv(totpad, apad);
339
340 for (ix = 0; ix <= ixmax; ++ix) {
341 STRLEN ilen;
342 SV *elem;
343 svp = av_fetch((AV*)ival, ix, FALSE);
344 if (svp)
345 elem = *svp;
346 else
3280af22 347 elem = &PL_sv_undef;
823edd99 348
349 ilen = inamelen;
350 sv_setiv(ixsv, ix);
351 (void) sprintf(iname+ilen, "%ld", ix);
352 ilen = strlen(iname);
353 iname[ilen++] = ']'; iname[ilen] = '\0';
354 if (indent >= 3) {
355 sv_catsv(retval, totpad);
356 sv_catsv(retval, ipad);
357 sv_catpvn(retval, "#", 1);
358 sv_catsv(retval, ixsv);
359 }
360 sv_catsv(retval, totpad);
361 sv_catsv(retval, ipad);
362 DD_dump(elem, iname, ilen, retval, seenhv, postav,
363 levelp, indent, pad, xpad, apad, sep,
364 freezer, toaster, purity, deepcopy, quotekeys, bless);
365 if (ix < ixmax)
366 sv_catpvn(retval, ",", 1);
367 }
368 if (ixmax >= 0) {
369 SV *opad = sv_x(Nullsv, SvPVX(xpad), SvCUR(xpad), (*levelp)-1);
370 sv_catsv(retval, totpad);
371 sv_catsv(retval, opad);
372 SvREFCNT_dec(opad);
373 }
374 if (name[0] == '@')
375 sv_catpvn(retval, ")", 1);
376 else
377 sv_catpvn(retval, "]", 1);
378 SvREFCNT_dec(ixsv);
379 SvREFCNT_dec(totpad);
380 Safefree(iname);
381 }
382 else if (realtype == SVt_PVHV) {
383 SV *totpad, *newapad;
384 SV *iname, *sname;
385 HE *entry;
386 char *key;
387 I32 klen;
388 SV *hval;
389
7820172a 390 iname = newSVpvn(name, namelen);
823edd99 391 if (name[0] == '%') {
392 sv_catpvn(retval, "(", 1);
393 (SvPVX(iname))[0] = '$';
394 }
395 else {
396 sv_catpvn(retval, "{", 1);
7820172a 397 /* omit "->" in $foo[0]->{bar}, but not in ${$foo}->{bar} */
398 if ((namelen > 0
399 && name[namelen-1] != ']' && name[namelen-1] != '}')
400 || (namelen > 4
401 && (name[1] == '{'
402 || (name[0] == '\\' && name[2] == '{'))))
403 {
823edd99 404 sv_catpvn(iname, "->", 2);
405 }
406 }
407 if (name[0] == '*' && name[namelen-1] == '}' && namelen >= 8 &&
408 (instr(name+namelen-8, "{SCALAR}") ||
409 instr(name+namelen-7, "{ARRAY}") ||
410 instr(name+namelen-6, "{HASH}"))) {
411 sv_catpvn(iname, "->", 2);
412 }
413 sv_catpvn(iname, "{", 1);
414 totpad = newSVsv(sep);
415 sv_catsv(totpad, pad);
416 sv_catsv(totpad, apad);
417
418 (void)hv_iterinit((HV*)ival);
419 i = 0;
420 while ((entry = hv_iternext((HV*)ival))) {
421 char *nkey;
422 I32 nticks = 0;
423
424 if (i)
425 sv_catpvn(retval, ",", 1);
426 i++;
427 key = hv_iterkey(entry, &klen);
428 hval = hv_iterval((HV*)ival, entry);
429
430 if (quotekeys || needs_quote(key)) {
6c1ab3c2 431 nticks = num_q(key, klen);
823edd99 432 New(0, nkey, klen+nticks+3, char);
433 nkey[0] = '\'';
434 if (nticks)
435 klen += esc_q(nkey+1, key, klen);
436 else
437 (void)Copy(key, nkey+1, klen, char);
438 nkey[++klen] = '\'';
439 nkey[++klen] = '\0';
440 }
441 else {
442 New(0, nkey, klen, char);
443 (void)Copy(key, nkey, klen, char);
444 }
445
446 sname = newSVsv(iname);
447 sv_catpvn(sname, nkey, klen);
448 sv_catpvn(sname, "}", 1);
449
450 sv_catsv(retval, totpad);
451 sv_catsv(retval, ipad);
452 sv_catpvn(retval, nkey, klen);
453 sv_catpvn(retval, " => ", 4);
454 if (indent >= 2) {
455 char *extra;
456 I32 elen = 0;
457 newapad = newSVsv(apad);
458 New(0, extra, klen+4+1, char);
459 while (elen < (klen+4))
460 extra[elen++] = ' ';
461 extra[elen] = '\0';
462 sv_catpvn(newapad, extra, elen);
463 Safefree(extra);
464 }
465 else
466 newapad = apad;
467
468 DD_dump(hval, SvPVX(sname), SvCUR(sname), retval, seenhv,
469 postav, levelp, indent, pad, xpad, newapad, sep,
470 freezer, toaster, purity, deepcopy, quotekeys, bless);
471 SvREFCNT_dec(sname);
472 Safefree(nkey);
473 if (indent >= 2)
474 SvREFCNT_dec(newapad);
475 }
476 if (i) {
477 SV *opad = sv_x(Nullsv, SvPVX(xpad), SvCUR(xpad), *levelp-1);
478 sv_catsv(retval, totpad);
479 sv_catsv(retval, opad);
480 SvREFCNT_dec(opad);
481 }
482 if (name[0] == '%')
483 sv_catpvn(retval, ")", 1);
484 else
485 sv_catpvn(retval, "}", 1);
486 SvREFCNT_dec(iname);
487 SvREFCNT_dec(totpad);
488 }
489 else if (realtype == SVt_PVCV) {
490 sv_catpvn(retval, "sub { \"DUMMY\" }", 15);
491 if (purity)
492 warn("Encountered CODE ref, using dummy placeholder");
493 }
494 else {
495 warn("cannot handle ref type %ld", realtype);
496 }
497
498 if (realpack) { /* free blessed allocs */
499 if (indent >= 2) {
500 SvREFCNT_dec(apad);
501 apad = blesspad;
502 }
503 sv_catpvn(retval, ", '", 3);
504 sv_catpvn(retval, realpack, strlen(realpack));
505 sv_catpvn(retval, "' )", 3);
506 if (toaster && SvPOK(toaster) && SvCUR(toaster)) {
507 sv_catpvn(retval, "->", 2);
508 sv_catsv(retval, toaster);
509 sv_catpvn(retval, "()", 2);
510 }
511 }
512 SvREFCNT_dec(ipad);
513 (*levelp)--;
514 }
515 else {
516 STRLEN i;
517
518 if (namelen) {
519 (void) sprintf(id, "0x%lx", (unsigned long)val);
520 if ((svp = hv_fetch(seenhv, id, (idlen = strlen(id)), FALSE)) &&
521 (sv = *svp) && SvROK(sv) &&
7820172a 522 (seenentry = (AV*)SvRV(sv)))
523 {
823edd99 524 SV *othername;
7820172a 525 if ((svp = av_fetch(seenentry, 0, FALSE)) && (othername = *svp)
526 && (svp = av_fetch(seenentry, 2, FALSE)) && *svp && SvIV(*svp) > 0)
527 {
528 sv_catpvn(retval, "${", 2);
823edd99 529 sv_catsv(retval, othername);
7820172a 530 sv_catpvn(retval, "}", 1);
823edd99 531 return 1;
532 }
533 }
534 else {
535 SV *namesv;
7820172a 536 namesv = newSVpvn("\\", 1);
823edd99 537 sv_catpvn(namesv, name, namelen);
538 seenentry = newAV();
539 av_push(seenentry, namesv);
7820172a 540 av_push(seenentry, newRV(val));
823edd99 541 (void)hv_store(seenhv, id, strlen(id), newRV((SV*)seenentry), 0);
542 SvREFCNT_dec(seenentry);
543 }
544 }
7820172a 545
823edd99 546 if (SvIOK(val)) {
547 STRLEN len;
548 i = SvIV(val);
549 (void) sprintf(tmpbuf, "%d", i);
550 len = strlen(tmpbuf);
551 sv_catpvn(retval, tmpbuf, len);
823edd99 552 }
553 else if (realtype == SVt_PVGV) {/* GLOBs can end up with scribbly names */
554 c = SvPV(val, i);
555 ++c; --i; /* just get the name */
556 if (i >= 6 && strncmp(c, "main::", 6) == 0) {
557 c += 4;
558 i -= 4;
559 }
560 if (needs_quote(c)) {
561 sv_grow(retval, SvCUR(retval)+6+2*i);
562 r = SvPVX(retval)+SvCUR(retval);
563 r[0] = '*'; r[1] = '{'; r[2] = '\'';
564 i += esc_q(r+3, c, i);
565 i += 3;
566 r[i++] = '\''; r[i++] = '}';
567 r[i] = '\0';
568 }
569 else {
570 sv_grow(retval, SvCUR(retval)+i+2);
571 r = SvPVX(retval)+SvCUR(retval);
572 r[0] = '*'; strcpy(r+1, c);
573 i++;
574 }
7820172a 575 SvCUR_set(retval, SvCUR(retval)+i);
823edd99 576
577 if (purity) {
578 static char *entries[] = { "{SCALAR}", "{ARRAY}", "{HASH}" };
579 static STRLEN sizes[] = { 8, 7, 6 };
580 SV *e;
7820172a 581 SV *nname = newSVpvn("", 0);
582 SV *newapad = newSVpvn("", 0);
823edd99 583 GV *gv = (GV*)val;
584 I32 j;
585
586 for (j=0; j<3; j++) {
587 e = ((j == 0) ? GvSV(gv) : (j == 1) ? (SV*)GvAV(gv) : (SV*)GvHV(gv));
7820172a 588 if (!e)
589 continue;
590 if (j == 0 && !SvOK(e))
591 continue;
592
593 {
823edd99 594 I32 nlevel = 0;
7820172a 595 SV *postentry = newSVpvn(r,i);
823edd99 596
597 sv_setsv(nname, postentry);
598 sv_catpvn(nname, entries[j], sizes[j]);
599 sv_catpvn(postentry, " = ", 3);
600 av_push(postav, postentry);
601 e = newRV(e);
602
603 SvCUR(newapad) = 0;
604 if (indent >= 2)
605 (void)sv_x(newapad, " ", 1, SvCUR(postentry));
606
607 DD_dump(e, SvPVX(nname), SvCUR(nname), postentry,
608 seenhv, postav, &nlevel, indent, pad, xpad,
609 newapad, sep, freezer, toaster, purity,
610 deepcopy, quotekeys, bless);
611 SvREFCNT_dec(e);
612 }
613 }
614
615 SvREFCNT_dec(newapad);
616 SvREFCNT_dec(nname);
617 }
618 }
7820172a 619 else if (val == &PL_sv_undef || !SvOK(val)) {
620 sv_catpvn(retval, "undef", 5);
621 }
823edd99 622 else {
623 c = SvPV(val, i);
624 sv_grow(retval, SvCUR(retval)+3+2*i);
625 r = SvPVX(retval)+SvCUR(retval);
626 r[0] = '\'';
627 i += esc_q(r+1, c, i);
628 ++i;
629 r[i++] = '\'';
630 r[i] = '\0';
7820172a 631 SvCUR_set(retval, SvCUR(retval)+i);
823edd99 632 }
823edd99 633 }
634
7820172a 635 if (idlen) {
636 if (deepcopy)
637 (void)hv_delete(seenhv, id, idlen, G_DISCARD);
638 else if (namelen && seenentry) {
639 SV *mark = *av_fetch(seenentry, 2, TRUE);
640 sv_setiv(mark,1);
641 }
642 }
823edd99 643 return 1;
644}
645
646
647MODULE = Data::Dumper PACKAGE = Data::Dumper PREFIX = Data_Dumper_
648
649#
650# This is the exact equivalent of Dump. Well, almost. The things that are
651# different as of now (due to Laziness):
652# * doesnt do double-quotes yet.
653#
654
655void
656Data_Dumper_Dumpxs(href, ...)
657 SV *href;
658 PROTOTYPE: $;$$
659 PPCODE:
660 {
661 HV *hv;
662 SV *retval, *valstr;
663 HV *seenhv = Nullhv;
664 AV *postav, *todumpav, *namesav;
665 I32 level = 0;
666 I32 indent, terse, useqq, i, imax, postlen;
667 SV **svp;
668 SV *val, *name, *pad, *xpad, *apad, *sep, *tmp, *varname;
669 SV *freezer, *toaster, *bless;
670 I32 purity, deepcopy, quotekeys;
671 char tmpbuf[1024];
672 I32 gimme = GIMME;
673
674 if (!SvROK(href)) { /* call new to get an object first */
675 SV *valarray;
676 SV *namearray;
677
678 if (items == 3) {
679 valarray = ST(1);
680 namearray = ST(2);
681 }
682 else
683 croak("Usage: Data::Dumper::Dumpxs(PACKAGE, VAL_ARY_REF, NAME_ARY_REF)");
684
685 ENTER;
686 SAVETMPS;
687
688 PUSHMARK(sp);
689 XPUSHs(href);
690 XPUSHs(sv_2mortal(newSVsv(valarray)));
691 XPUSHs(sv_2mortal(newSVsv(namearray)));
692 PUTBACK;
693 i = perl_call_method("new", G_SCALAR);
694 SPAGAIN;
695 if (i)
696 href = newSVsv(POPs);
697
698 PUTBACK;
699 FREETMPS;
700 LEAVE;
701 if (i)
702 (void)sv_2mortal(href);
703 }
704
705 todumpav = namesav = Nullav;
706 seenhv = Nullhv;
707 val = pad = xpad = apad = sep = tmp = varname
3280af22 708 = freezer = toaster = bless = &PL_sv_undef;
823edd99 709 name = sv_newmortal();
710 indent = 2;
711 terse = useqq = purity = deepcopy = 0;
712 quotekeys = 1;
713
7820172a 714 retval = newSVpvn("", 0);
823edd99 715 if (SvROK(href)
716 && (hv = (HV*)SvRV((SV*)href))
717 && SvTYPE(hv) == SVt_PVHV) {
718
719 if ((svp = hv_fetch(hv, "seen", 4, FALSE)) && SvROK(*svp))
720 seenhv = (HV*)SvRV(*svp);
721 if ((svp = hv_fetch(hv, "todump", 6, FALSE)) && SvROK(*svp))
722 todumpav = (AV*)SvRV(*svp);
723 if ((svp = hv_fetch(hv, "names", 5, FALSE)) && SvROK(*svp))
724 namesav = (AV*)SvRV(*svp);
725 if ((svp = hv_fetch(hv, "indent", 6, FALSE)))
726 indent = SvIV(*svp);
727 if ((svp = hv_fetch(hv, "purity", 6, FALSE)))
728 purity = SvIV(*svp);
729 if ((svp = hv_fetch(hv, "terse", 5, FALSE)))
730 terse = SvTRUE(*svp);
731 if ((svp = hv_fetch(hv, "useqq", 5, FALSE)))
732 useqq = SvTRUE(*svp);
733 if ((svp = hv_fetch(hv, "pad", 3, FALSE)))
734 pad = *svp;
735 if ((svp = hv_fetch(hv, "xpad", 4, FALSE)))
736 xpad = *svp;
737 if ((svp = hv_fetch(hv, "apad", 4, FALSE)))
738 apad = *svp;
739 if ((svp = hv_fetch(hv, "sep", 3, FALSE)))
740 sep = *svp;
741 if ((svp = hv_fetch(hv, "varname", 7, FALSE)))
742 varname = *svp;
743 if ((svp = hv_fetch(hv, "freezer", 7, FALSE)))
744 freezer = *svp;
745 if ((svp = hv_fetch(hv, "toaster", 7, FALSE)))
746 toaster = *svp;
747 if ((svp = hv_fetch(hv, "deepcopy", 8, FALSE)))
748 deepcopy = SvTRUE(*svp);
749 if ((svp = hv_fetch(hv, "quotekeys", 9, FALSE)))
750 quotekeys = SvTRUE(*svp);
751 if ((svp = hv_fetch(hv, "bless", 5, FALSE)))
752 bless = *svp;
753 postav = newAV();
754
755 if (todumpav)
756 imax = av_len(todumpav);
757 else
758 imax = -1;
7820172a 759 valstr = newSVpvn("",0);
823edd99 760 for (i = 0; i <= imax; ++i) {
761 SV *newapad;
762
763 av_clear(postav);
764 if ((svp = av_fetch(todumpav, i, FALSE)))
765 val = *svp;
766 else
3280af22 767 val = &PL_sv_undef;
823edd99 768 if ((svp = av_fetch(namesav, i, TRUE)))
769 sv_setsv(name, *svp);
770 else
771 SvOK_off(name);
772
773 if (SvOK(name)) {
774 if ((SvPVX(name))[0] == '*') {
775 if (SvROK(val)) {
776 switch (SvTYPE(SvRV(val))) {
777 case SVt_PVAV:
778 (SvPVX(name))[0] = '@';
779 break;
780 case SVt_PVHV:
781 (SvPVX(name))[0] = '%';
782 break;
783 case SVt_PVCV:
784 (SvPVX(name))[0] = '*';
785 break;
786 default:
787 (SvPVX(name))[0] = '$';
788 break;
789 }
790 }
791 else
792 (SvPVX(name))[0] = '$';
793 }
794 else if ((SvPVX(name))[0] != '$')
795 sv_insert(name, 0, 0, "$", 1);
796 }
797 else {
798 STRLEN nchars = 0;
799 sv_setpvn(name, "$", 1);
800 sv_catsv(name, varname);
801 (void) sprintf(tmpbuf, "%ld", i+1);
802 nchars = strlen(tmpbuf);
803 sv_catpvn(name, tmpbuf, nchars);
804 }
805
806 if (indent >= 2) {
807 SV *tmpsv = sv_x(Nullsv, " ", 1, SvCUR(name)+3);
808 newapad = newSVsv(apad);
809 sv_catsv(newapad, tmpsv);
810 SvREFCNT_dec(tmpsv);
811 }
812 else
813 newapad = apad;
814
815 DD_dump(val, SvPVX(name), SvCUR(name), valstr, seenhv,
816 postav, &level, indent, pad, xpad, newapad, sep,
817 freezer, toaster, purity, deepcopy, quotekeys,
818 bless);
819
820 if (indent >= 2)
821 SvREFCNT_dec(newapad);
822
823 postlen = av_len(postav);
824 if (postlen >= 0 || !terse) {
825 sv_insert(valstr, 0, 0, " = ", 3);
826 sv_insert(valstr, 0, 0, SvPVX(name), SvCUR(name));
827 sv_catpvn(valstr, ";", 1);
828 }
829 sv_catsv(retval, pad);
830 sv_catsv(retval, valstr);
831 sv_catsv(retval, sep);
832 if (postlen >= 0) {
833 I32 i;
834 sv_catsv(retval, pad);
835 for (i = 0; i <= postlen; ++i) {
836 SV *elem;
837 svp = av_fetch(postav, i, FALSE);
838 if (svp && (elem = *svp)) {
839 sv_catsv(retval, elem);
840 if (i < postlen) {
841 sv_catpvn(retval, ";", 1);
842 sv_catsv(retval, sep);
843 sv_catsv(retval, pad);
844 }
845 }
846 }
847 sv_catpvn(retval, ";", 1);
848 sv_catsv(retval, sep);
849 }
850 sv_setpvn(valstr, "", 0);
851 if (gimme == G_ARRAY) {
852 XPUSHs(sv_2mortal(retval));
853 if (i < imax) /* not the last time thro ? */
7820172a 854 retval = newSVpvn("",0);
823edd99 855 }
856 }
857 SvREFCNT_dec(postav);
858 SvREFCNT_dec(valstr);
859 }
860 else
861 croak("Call to new() method failed to return HASH ref");
862 if (gimme == G_SCALAR)
863 XPUSHs(sv_2mortal(retval));
864 }
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