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[perl5.git] / ext / Data / Dumper / Dumper.xs
CommitLineData
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);
6cde4e94 25static I32 esc_q_utf8 (pTHX_ SV *sv, char *src, STRLEN slen);
cea2e8a9
GS
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
GS
28 HV *seenhv, AV *postav, I32 *levelp, I32 indent,
29 SV *pad, SV *xpad, SV *apad, SV *sep,
30 SV *freezer, SV *toaster,
a2126434
JN
31 I32 purity, I32 deepcopy, I32 quotekeys, SV *bless,
32 I32 maxdepth);
823edd99
GS
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
GS
50 if (*s == ':')
51 goto TOP;
52 else
53 return 1;
7b0972df 54 }
823edd99 55 }
6cde4e94 56 else
823edd99
GS
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
GS
64{
65 register I32 ret = 0;
6c1ab3c2
SR
66
67 while (slen > 0) {
823edd99
GS
68 if (*s == '\'' || *s == '\\')
69 ++ret;
70 ++s;
6c1ab3c2 71 --slen;
823edd99
GS
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
GS
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
JH
102{
103 char *s, *send, *r;
104 STRLEN grow = 0, j = 1, l;
105 bool dquote = FALSE;
6cde4e94 106
dc71dc59
JH
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
JH
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
JH
132 r[j++] = '}';
133 dquote = TRUE;
134 }
135 }
136 if (dquote)
137 r[0] = r[j++] = '"';
138 else
139 r[0] = r[j++] = '\'';
f397e026 140 r[j] = '\0';
dc71dc59
JH
141 SvCUR_set(sv, SvCUR(sv) + j);
142
143 return j;
144}
145
823edd99
GS
146/* append a repeated string to an SV */
147static SV *
cea2e8a9 148sv_x(pTHX_ SV *sv, register char *str, STRLEN len, I32 n)
823edd99
GS
149{
150 if (sv == Nullsv)
7820172a 151 sv = newSVpvn("", 0);
823edd99
GS
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
GS
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
GS
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
GS
191 char *iname;
192 STRLEN inamelen, idlen = 0;
823edd99
GS
193 U32 realtype;
194
195 if (!val)
196 return 0;
197
823edd99 198 realtype = SvTYPE(val);
6cde4e94 199
823edd99
GS
200 if (SvGMAGICAL(val))
201 mg_get(val);
823edd99
GS
202 if (SvROK(val)) {
203
204 if (SvOBJECT(SvRV(val)) && freezer &&
205 SvPOK(freezer) && SvCUR(freezer))
206 {
207 dSP; ENTER; SAVETMPS; PUSHMARK(sp);
208 XPUSHs(val); PUTBACK;
209 i = perl_call_method(SvPVX(freezer), G_EVAL|G_SCALAR);
210 SPAGAIN;
7820172a 211 if (SvTRUE(ERRSV))
823edd99 212 warn("WARNING(Freezer method call failed): %s",
7820172a 213 SvPVX(ERRSV));
823edd99
GS
214 else if (i)
215 val = newSVsv(POPs);
216 PUTBACK; FREETMPS; LEAVE;
217 if (i)
218 (void)sv_2mortal(val);
219 }
220
221 ival = SvRV(val);
823edd99
GS
222 realtype = SvTYPE(ival);
223 (void) sprintf(id, "0x%lx", (unsigned long)ival);
224 idlen = strlen(id);
225 if (SvOBJECT(ival))
226 realpack = HvNAME(SvSTASH(ival));
227 else
228 realpack = Nullch;
7820172a
GS
229
230 /* if it has a name, we need to either look it up, or keep a tab
231 * on it so we know when we hit it later
232 */
233 if (namelen) {
234 if ((svp = hv_fetch(seenhv, id, idlen, FALSE))
235 && (sv = *svp) && SvROK(sv) && (seenentry = (AV*)SvRV(sv)))
236 {
237 SV *othername;
238 if ((svp = av_fetch(seenentry, 0, FALSE))
239 && (othername = *svp))
240 {
241 if (purity && *levelp > 0) {
242 SV *postentry;
243
244 if (realtype == SVt_PVHV)
245 sv_catpvn(retval, "{}", 2);
246 else if (realtype == SVt_PVAV)
247 sv_catpvn(retval, "[]", 2);
248 else
5df59fb6 249 sv_catpvn(retval, "do{my $o}", 9);
7820172a
GS
250 postentry = newSVpvn(name, namelen);
251 sv_catpvn(postentry, " = ", 3);
252 sv_catsv(postentry, othername);
253 av_push(postav, postentry);
254 }
255 else {
256 if (name[0] == '@' || name[0] == '%') {
257 if ((SvPVX(othername))[0] == '\\' &&
258 (SvPVX(othername))[1] == name[0]) {
259 sv_catpvn(retval, SvPVX(othername)+1,
260 SvCUR(othername)-1);
261 }
262 else {
263 sv_catpvn(retval, name, 1);
264 sv_catpvn(retval, "{", 1);
265 sv_catsv(retval, othername);
266 sv_catpvn(retval, "}", 1);
267 }
823edd99 268 }
7820172a 269 else
823edd99 270 sv_catsv(retval, othername);
823edd99 271 }
7820172a
GS
272 return 1;
273 }
274 else {
275 warn("ref name not found for %s", id);
276 return 0;
823edd99 277 }
823edd99 278 }
7820172a
GS
279 else { /* store our name and continue */
280 SV *namesv;
281 if (name[0] == '@' || name[0] == '%') {
282 namesv = newSVpvn("\\", 1);
283 sv_catpvn(namesv, name, namelen);
284 }
285 else if (realtype == SVt_PVCV && name[0] == '*') {
286 namesv = newSVpvn("\\", 2);
287 sv_catpvn(namesv, name, namelen);
288 (SvPVX(namesv))[1] = '&';
289 }
290 else
291 namesv = newSVpvn(name, namelen);
292 seenentry = newAV();
293 av_push(seenentry, namesv);
294 (void)SvREFCNT_inc(val);
295 av_push(seenentry, val);
296 (void)hv_store(seenhv, id, strlen(id),
297 newRV((SV*)seenentry), 0);
298 SvREFCNT_dec(seenentry);
823edd99 299 }
823edd99 300 }
823edd99 301
a2126434
JN
302 if (realpack && *realpack == 'R' && strEQ(realpack, "Regexp")) {
303 STRLEN rlen;
304 char *rval = SvPV(val, rlen);
305 char *slash = strchr(rval, '/');
306 sv_catpvn(retval, "qr/", 3);
307 while (slash) {
308 sv_catpvn(retval, rval, slash-rval);
309 sv_catpvn(retval, "\\/", 2);
310 rlen -= slash-rval+1;
311 rval = slash+1;
312 slash = strchr(rval, '/');
7894fbab 313 }
a2126434
JN
314 sv_catpvn(retval, rval, rlen);
315 sv_catpvn(retval, "/", 1);
316 return 1;
317 }
318
319 /* If purity is not set and maxdepth is set, then check depth:
320 * if we have reached maximum depth, return the string
321 * representation of the thing we are currently examining
6cde4e94 322 * at this depth (i.e., 'Foo=ARRAY(0xdeadbeef)').
a2126434
JN
323 */
324 if (!purity && maxdepth > 0 && *levelp >= maxdepth) {
325 STRLEN vallen;
326 char *valstr = SvPV(val,vallen);
327 sv_catpvn(retval, "'", 1);
328 sv_catpvn(retval, valstr, vallen);
329 sv_catpvn(retval, "'", 1);
330 return 1;
331 }
332
333 if (realpack) { /* we have a blessed ref */
334 STRLEN blesslen;
335 char *blessstr = SvPV(bless, blesslen);
336 sv_catpvn(retval, blessstr, blesslen);
337 sv_catpvn(retval, "( ", 2);
338 if (indent >= 2) {
339 blesspad = apad;
340 apad = newSVsv(apad);
341 sv_x(aTHX_ apad, " ", 1, blesslen+2);
823edd99
GS
342 }
343 }
344
7894fbab
GS
345 (*levelp)++;
346 ipad = sv_x(aTHX_ Nullsv, SvPVX(xpad), SvCUR(xpad), *levelp);
347
7820172a
GS
348 if (realtype <= SVt_PVBM) { /* scalar ref */
349 SV *namesv = newSVpvn("${", 2);
350 sv_catpvn(namesv, name, namelen);
351 sv_catpvn(namesv, "}", 1);
6cde4e94 352 if (realpack) { /* blessed */
823edd99 353 sv_catpvn(retval, "do{\\(my $o = ", 13);
cea2e8a9 354 DD_dump(aTHX_ ival, SvPVX(namesv), SvCUR(namesv), retval, seenhv,
7820172a 355 postav, levelp, indent, pad, xpad, apad, sep,
a2126434
JN
356 freezer, toaster, purity, deepcopy, quotekeys, bless,
357 maxdepth);
823edd99 358 sv_catpvn(retval, ")}", 2);
7820172a 359 } /* plain */
823edd99
GS
360 else {
361 sv_catpvn(retval, "\\", 1);
cea2e8a9 362 DD_dump(aTHX_ ival, SvPVX(namesv), SvCUR(namesv), retval, seenhv,
7820172a 363 postav, levelp, indent, pad, xpad, apad, sep,
a2126434
JN
364 freezer, toaster, purity, deepcopy, quotekeys, bless,
365 maxdepth);
823edd99 366 }
7820172a
GS
367 SvREFCNT_dec(namesv);
368 }
369 else if (realtype == SVt_PVGV) { /* glob ref */
370 SV *namesv = newSVpvn("*{", 2);
371 sv_catpvn(namesv, name, namelen);
372 sv_catpvn(namesv, "}", 1);
373 sv_catpvn(retval, "\\", 1);
cea2e8a9 374 DD_dump(aTHX_ ival, SvPVX(namesv), SvCUR(namesv), retval, seenhv,
7820172a 375 postav, levelp, indent, pad, xpad, apad, sep,
a2126434
JN
376 freezer, toaster, purity, deepcopy, quotekeys, bless,
377 maxdepth);
7820172a 378 SvREFCNT_dec(namesv);
823edd99
GS
379 }
380 else if (realtype == SVt_PVAV) {
381 SV *totpad;
382 I32 ix = 0;
383 I32 ixmax = av_len((AV *)ival);
6cde4e94 384
823edd99
GS
385 SV *ixsv = newSViv(0);
386 /* allowing for a 24 char wide array index */
387 New(0, iname, namelen+28, char);
388 (void)strcpy(iname, name);
389 inamelen = namelen;
390 if (name[0] == '@') {
391 sv_catpvn(retval, "(", 1);
392 iname[0] = '$';
393 }
394 else {
395 sv_catpvn(retval, "[", 1);
7820172a
GS
396 /* omit "->" in $foo{bar}->[0], but not in ${$foo}->[0] */
397 /*if (namelen > 0
398 && name[namelen-1] != ']' && name[namelen-1] != '}'
399 && (namelen < 4 || (name[1] != '{' && name[2] != '{')))*/
400 if ((namelen > 0
401 && name[namelen-1] != ']' && name[namelen-1] != '}')
402 || (namelen > 4
403 && (name[1] == '{'
404 || (name[0] == '\\' && name[2] == '{'))))
405 {
823edd99
GS
406 iname[inamelen++] = '-'; iname[inamelen++] = '>';
407 iname[inamelen] = '\0';
408 }
409 }
410 if (iname[0] == '*' && iname[inamelen-1] == '}' && inamelen >= 8 &&
411 (instr(iname+inamelen-8, "{SCALAR}") ||
412 instr(iname+inamelen-7, "{ARRAY}") ||
413 instr(iname+inamelen-6, "{HASH}"))) {
414 iname[inamelen++] = '-'; iname[inamelen++] = '>';
415 }
416 iname[inamelen++] = '['; iname[inamelen] = '\0';
417 totpad = newSVsv(sep);
418 sv_catsv(totpad, pad);
419 sv_catsv(totpad, apad);
420
421 for (ix = 0; ix <= ixmax; ++ix) {
422 STRLEN ilen;
423 SV *elem;
424 svp = av_fetch((AV*)ival, ix, FALSE);
425 if (svp)
426 elem = *svp;
427 else
3280af22 428 elem = &PL_sv_undef;
823edd99
GS
429
430 ilen = inamelen;
431 sv_setiv(ixsv, ix);
7b0972df 432 (void) sprintf(iname+ilen, "%"IVdf, (IV)ix);
823edd99
GS
433 ilen = strlen(iname);
434 iname[ilen++] = ']'; iname[ilen] = '\0';
435 if (indent >= 3) {
436 sv_catsv(retval, totpad);
437 sv_catsv(retval, ipad);
438 sv_catpvn(retval, "#", 1);
439 sv_catsv(retval, ixsv);
440 }
441 sv_catsv(retval, totpad);
442 sv_catsv(retval, ipad);
cea2e8a9 443 DD_dump(aTHX_ elem, iname, ilen, retval, seenhv, postav,
823edd99 444 levelp, indent, pad, xpad, apad, sep,
a2126434
JN
445 freezer, toaster, purity, deepcopy, quotekeys, bless,
446 maxdepth);
823edd99
GS
447 if (ix < ixmax)
448 sv_catpvn(retval, ",", 1);
449 }
450 if (ixmax >= 0) {
cea2e8a9 451 SV *opad = sv_x(aTHX_ Nullsv, SvPVX(xpad), SvCUR(xpad), (*levelp)-1);
823edd99
GS
452 sv_catsv(retval, totpad);
453 sv_catsv(retval, opad);
454 SvREFCNT_dec(opad);
455 }
456 if (name[0] == '@')
457 sv_catpvn(retval, ")", 1);
458 else
459 sv_catpvn(retval, "]", 1);
460 SvREFCNT_dec(ixsv);
461 SvREFCNT_dec(totpad);
462 Safefree(iname);
463 }
464 else if (realtype == SVt_PVHV) {
465 SV *totpad, *newapad;
466 SV *iname, *sname;
467 HE *entry;
468 char *key;
469 I32 klen;
470 SV *hval;
6cde4e94 471
7820172a 472 iname = newSVpvn(name, namelen);
823edd99
GS
473 if (name[0] == '%') {
474 sv_catpvn(retval, "(", 1);
475 (SvPVX(iname))[0] = '$';
476 }
477 else {
478 sv_catpvn(retval, "{", 1);
7820172a
GS
479 /* omit "->" in $foo[0]->{bar}, but not in ${$foo}->{bar} */
480 if ((namelen > 0
481 && name[namelen-1] != ']' && name[namelen-1] != '}')
482 || (namelen > 4
483 && (name[1] == '{'
484 || (name[0] == '\\' && name[2] == '{'))))
485 {
823edd99
GS
486 sv_catpvn(iname, "->", 2);
487 }
488 }
489 if (name[0] == '*' && name[namelen-1] == '}' && namelen >= 8 &&
490 (instr(name+namelen-8, "{SCALAR}") ||
491 instr(name+namelen-7, "{ARRAY}") ||
492 instr(name+namelen-6, "{HASH}"))) {
493 sv_catpvn(iname, "->", 2);
494 }
495 sv_catpvn(iname, "{", 1);
496 totpad = newSVsv(sep);
497 sv_catsv(totpad, pad);
498 sv_catsv(totpad, apad);
6cde4e94 499
823edd99
GS
500 (void)hv_iterinit((HV*)ival);
501 i = 0;
502 while ((entry = hv_iternext((HV*)ival))) {
dc71dc59 503 char *nkey = NULL;
823edd99 504 I32 nticks = 0;
dc71dc59
JH
505 SV* keysv;
506 STRLEN keylen;
507 bool do_utf8 = FALSE;
823edd99
GS
508
509 if (i)
510 sv_catpvn(retval, ",", 1);
511 i++;
dc71dc59
JH
512 keysv = hv_iterkeysv(entry);
513 hval = hv_iterval((HV*)ival, entry);
514
515 do_utf8 = DO_UTF8(keysv);
516 key = SvPV(keysv, keylen);
517 klen = keylen;
518
519 if (do_utf8) {
520 char *okey = SvPVX(retval) + SvCUR(retval);
521 I32 nlen;
522
523 sv_catsv(retval, totpad);
524 sv_catsv(retval, ipad);
6cde4e94 525 nlen = esc_q_utf8(aTHX_ retval, key, klen);
dc71dc59
JH
526
527 sname = newSVsv(iname);
528 sv_catpvn(sname, okey, nlen);
529 sv_catpvn(sname, "}", 1);
823edd99
GS
530 }
531 else {
dc71dc59
JH
532 if (quotekeys || needs_quote(key)) {
533 nticks = num_q(key, klen);
534 New(0, nkey, klen+nticks+3, char);
535 nkey[0] = '\'';
536 if (nticks)
537 klen += esc_q(nkey+1, key, klen);
538 else
539 (void)Copy(key, nkey+1, klen, char);
540 nkey[++klen] = '\'';
541 nkey[++klen] = '\0';
542 }
543 else {
544 New(0, nkey, klen, char);
545 (void)Copy(key, nkey, klen, char);
546 }
823edd99 547
dc71dc59
JH
548 sname = newSVsv(iname);
549 sv_catpvn(sname, nkey, klen);
550 sv_catpvn(sname, "}", 1);
551
552 sv_catsv(retval, totpad);
553 sv_catsv(retval, ipad);
554 sv_catpvn(retval, nkey, klen);
555 }
823edd99
GS
556 sv_catpvn(retval, " => ", 4);
557 if (indent >= 2) {
558 char *extra;
559 I32 elen = 0;
560 newapad = newSVsv(apad);
561 New(0, extra, klen+4+1, char);
562 while (elen < (klen+4))
563 extra[elen++] = ' ';
564 extra[elen] = '\0';
565 sv_catpvn(newapad, extra, elen);
566 Safefree(extra);
567 }
568 else
569 newapad = apad;
570
cea2e8a9 571 DD_dump(aTHX_ hval, SvPVX(sname), SvCUR(sname), retval, seenhv,
823edd99 572 postav, levelp, indent, pad, xpad, newapad, sep,
a2126434
JN
573 freezer, toaster, purity, deepcopy, quotekeys, bless,
574 maxdepth);
823edd99
GS
575 SvREFCNT_dec(sname);
576 Safefree(nkey);
577 if (indent >= 2)
578 SvREFCNT_dec(newapad);
579 }
580 if (i) {
cea2e8a9 581 SV *opad = sv_x(aTHX_ Nullsv, SvPVX(xpad), SvCUR(xpad), *levelp-1);
823edd99
GS
582 sv_catsv(retval, totpad);
583 sv_catsv(retval, opad);
584 SvREFCNT_dec(opad);
585 }
586 if (name[0] == '%')
587 sv_catpvn(retval, ")", 1);
588 else
589 sv_catpvn(retval, "}", 1);
590 SvREFCNT_dec(iname);
591 SvREFCNT_dec(totpad);
592 }
593 else if (realtype == SVt_PVCV) {
594 sv_catpvn(retval, "sub { \"DUMMY\" }", 15);
595 if (purity)
596 warn("Encountered CODE ref, using dummy placeholder");
597 }
598 else {
599 warn("cannot handle ref type %ld", realtype);
600 }
601
602 if (realpack) { /* free blessed allocs */
603 if (indent >= 2) {
604 SvREFCNT_dec(apad);
605 apad = blesspad;
606 }
607 sv_catpvn(retval, ", '", 3);
608 sv_catpvn(retval, realpack, strlen(realpack));
609 sv_catpvn(retval, "' )", 3);
610 if (toaster && SvPOK(toaster) && SvCUR(toaster)) {
611 sv_catpvn(retval, "->", 2);
612 sv_catsv(retval, toaster);
613 sv_catpvn(retval, "()", 2);
614 }
615 }
616 SvREFCNT_dec(ipad);
617 (*levelp)--;
618 }
619 else {
620 STRLEN i;
621
622 if (namelen) {
623 (void) sprintf(id, "0x%lx", (unsigned long)val);
624 if ((svp = hv_fetch(seenhv, id, (idlen = strlen(id)), FALSE)) &&
625 (sv = *svp) && SvROK(sv) &&
7820172a
GS
626 (seenentry = (AV*)SvRV(sv)))
627 {
823edd99 628 SV *othername;
7820172a
GS
629 if ((svp = av_fetch(seenentry, 0, FALSE)) && (othername = *svp)
630 && (svp = av_fetch(seenentry, 2, FALSE)) && *svp && SvIV(*svp) > 0)
631 {
632 sv_catpvn(retval, "${", 2);
823edd99 633 sv_catsv(retval, othername);
7820172a 634 sv_catpvn(retval, "}", 1);
823edd99
GS
635 return 1;
636 }
637 }
638 else {
639 SV *namesv;
7820172a 640 namesv = newSVpvn("\\", 1);
823edd99
GS
641 sv_catpvn(namesv, name, namelen);
642 seenentry = newAV();
643 av_push(seenentry, namesv);
7820172a 644 av_push(seenentry, newRV(val));
823edd99
GS
645 (void)hv_store(seenhv, id, strlen(id), newRV((SV*)seenentry), 0);
646 SvREFCNT_dec(seenentry);
647 }
648 }
7820172a 649
823edd99
GS
650 if (SvIOK(val)) {
651 STRLEN len;
0e8b3009 652 if (SvIsUV(val))
5e8f63cb 653 (void) sprintf(tmpbuf, "%"UVuf, SvUV(val));
0e8b3009
GS
654 else
655 (void) sprintf(tmpbuf, "%"IVdf, SvIV(val));
823edd99
GS
656 len = strlen(tmpbuf);
657 sv_catpvn(retval, tmpbuf, len);
823edd99
GS
658 }
659 else if (realtype == SVt_PVGV) {/* GLOBs can end up with scribbly names */
660 c = SvPV(val, i);
661 ++c; --i; /* just get the name */
662 if (i >= 6 && strncmp(c, "main::", 6) == 0) {
663 c += 4;
664 i -= 4;
665 }
666 if (needs_quote(c)) {
667 sv_grow(retval, SvCUR(retval)+6+2*i);
668 r = SvPVX(retval)+SvCUR(retval);
669 r[0] = '*'; r[1] = '{'; r[2] = '\'';
670 i += esc_q(r+3, c, i);
671 i += 3;
672 r[i++] = '\''; r[i++] = '}';
673 r[i] = '\0';
674 }
675 else {
676 sv_grow(retval, SvCUR(retval)+i+2);
677 r = SvPVX(retval)+SvCUR(retval);
678 r[0] = '*'; strcpy(r+1, c);
679 i++;
680 }
7820172a 681 SvCUR_set(retval, SvCUR(retval)+i);
823edd99
GS
682
683 if (purity) {
684 static char *entries[] = { "{SCALAR}", "{ARRAY}", "{HASH}" };
685 static STRLEN sizes[] = { 8, 7, 6 };
686 SV *e;
7820172a
GS
687 SV *nname = newSVpvn("", 0);
688 SV *newapad = newSVpvn("", 0);
823edd99
GS
689 GV *gv = (GV*)val;
690 I32 j;
691
692 for (j=0; j<3; j++) {
693 e = ((j == 0) ? GvSV(gv) : (j == 1) ? (SV*)GvAV(gv) : (SV*)GvHV(gv));
7820172a
GS
694 if (!e)
695 continue;
696 if (j == 0 && !SvOK(e))
697 continue;
698
699 {
823edd99 700 I32 nlevel = 0;
7820172a 701 SV *postentry = newSVpvn(r,i);
823edd99
GS
702
703 sv_setsv(nname, postentry);
704 sv_catpvn(nname, entries[j], sizes[j]);
705 sv_catpvn(postentry, " = ", 3);
706 av_push(postav, postentry);
707 e = newRV(e);
708
709 SvCUR(newapad) = 0;
710 if (indent >= 2)
cea2e8a9 711 (void)sv_x(aTHX_ newapad, " ", 1, SvCUR(postentry));
823edd99 712
cea2e8a9 713 DD_dump(aTHX_ e, SvPVX(nname), SvCUR(nname), postentry,
823edd99
GS
714 seenhv, postav, &nlevel, indent, pad, xpad,
715 newapad, sep, freezer, toaster, purity,
a2126434 716 deepcopy, quotekeys, bless, maxdepth);
823edd99
GS
717 SvREFCNT_dec(e);
718 }
719 }
720
721 SvREFCNT_dec(newapad);
722 SvREFCNT_dec(nname);
723 }
724 }
7820172a
GS
725 else if (val == &PL_sv_undef || !SvOK(val)) {
726 sv_catpvn(retval, "undef", 5);
727 }
823edd99
GS
728 else {
729 c = SvPV(val, i);
dc71dc59 730 if (DO_UTF8(val))
6cde4e94 731 i += esc_q_utf8(aTHX_ retval, c, i);
dc71dc59
JH
732 else {
733 sv_grow(retval, SvCUR(retval)+3+2*i); /* 3: ""\0 */
734 r = SvPVX(retval) + SvCUR(retval);
735 r[0] = '\'';
736 i += esc_q(r+1, c, i);
737 ++i;
738 r[i++] = '\'';
739 r[i] = '\0';
740 SvCUR_set(retval, SvCUR(retval)+i);
741 }
823edd99 742 }
823edd99
GS
743 }
744
7820172a
GS
745 if (idlen) {
746 if (deepcopy)
747 (void)hv_delete(seenhv, id, idlen, G_DISCARD);
748 else if (namelen && seenentry) {
749 SV *mark = *av_fetch(seenentry, 2, TRUE);
750 sv_setiv(mark,1);
751 }
752 }
823edd99
GS
753 return 1;
754}
755
756
757MODULE = Data::Dumper PACKAGE = Data::Dumper PREFIX = Data_Dumper_
758
759#
760# This is the exact equivalent of Dump. Well, almost. The things that are
761# different as of now (due to Laziness):
762# * doesnt do double-quotes yet.
763#
764
765void
766Data_Dumper_Dumpxs(href, ...)
767 SV *href;
768 PROTOTYPE: $;$$
769 PPCODE:
770 {
771 HV *hv;
772 SV *retval, *valstr;
773 HV *seenhv = Nullhv;
774 AV *postav, *todumpav, *namesav;
775 I32 level = 0;
497b47a8 776 I32 indent, terse, i, imax, postlen;
823edd99 777 SV **svp;
497b47a8 778 SV *val, *name, *pad, *xpad, *apad, *sep, *varname;
823edd99 779 SV *freezer, *toaster, *bless;
7b0972df 780 I32 purity, deepcopy, quotekeys, maxdepth = 0;
823edd99
GS
781 char tmpbuf[1024];
782 I32 gimme = GIMME;
783
784 if (!SvROK(href)) { /* call new to get an object first */
0f1923bd
GS
785 if (items < 2)
786 croak("Usage: Data::Dumper::Dumpxs(PACKAGE, VAL_ARY_REF, [NAME_ARY_REF])");
823edd99
GS
787
788 ENTER;
789 SAVETMPS;
790
791 PUSHMARK(sp);
792 XPUSHs(href);
0f1923bd
GS
793 XPUSHs(sv_2mortal(newSVsv(ST(1))));
794 if (items >= 3)
795 XPUSHs(sv_2mortal(newSVsv(ST(2))));
823edd99
GS
796 PUTBACK;
797 i = perl_call_method("new", G_SCALAR);
798 SPAGAIN;
799 if (i)
800 href = newSVsv(POPs);
801
802 PUTBACK;
803 FREETMPS;
804 LEAVE;
805 if (i)
806 (void)sv_2mortal(href);
807 }
808
809 todumpav = namesav = Nullav;
810 seenhv = Nullhv;
497b47a8 811 val = pad = xpad = apad = sep = varname
3280af22 812 = freezer = toaster = bless = &PL_sv_undef;
823edd99
GS
813 name = sv_newmortal();
814 indent = 2;
497b47a8 815 terse = purity = deepcopy = 0;
823edd99 816 quotekeys = 1;
6cde4e94 817
7820172a 818 retval = newSVpvn("", 0);
823edd99
GS
819 if (SvROK(href)
820 && (hv = (HV*)SvRV((SV*)href))
821 && SvTYPE(hv) == SVt_PVHV) {
822
823 if ((svp = hv_fetch(hv, "seen", 4, FALSE)) && SvROK(*svp))
824 seenhv = (HV*)SvRV(*svp);
825 if ((svp = hv_fetch(hv, "todump", 6, FALSE)) && SvROK(*svp))
826 todumpav = (AV*)SvRV(*svp);
827 if ((svp = hv_fetch(hv, "names", 5, FALSE)) && SvROK(*svp))
828 namesav = (AV*)SvRV(*svp);
829 if ((svp = hv_fetch(hv, "indent", 6, FALSE)))
830 indent = SvIV(*svp);
831 if ((svp = hv_fetch(hv, "purity", 6, FALSE)))
832 purity = SvIV(*svp);
833 if ((svp = hv_fetch(hv, "terse", 5, FALSE)))
834 terse = SvTRUE(*svp);
497b47a8 835#if 0 /* useqq currently unused */
823edd99
GS
836 if ((svp = hv_fetch(hv, "useqq", 5, FALSE)))
837 useqq = SvTRUE(*svp);
497b47a8 838#endif
823edd99
GS
839 if ((svp = hv_fetch(hv, "pad", 3, FALSE)))
840 pad = *svp;
841 if ((svp = hv_fetch(hv, "xpad", 4, FALSE)))
842 xpad = *svp;
843 if ((svp = hv_fetch(hv, "apad", 4, FALSE)))
844 apad = *svp;
845 if ((svp = hv_fetch(hv, "sep", 3, FALSE)))
846 sep = *svp;
847 if ((svp = hv_fetch(hv, "varname", 7, FALSE)))
848 varname = *svp;
849 if ((svp = hv_fetch(hv, "freezer", 7, FALSE)))
850 freezer = *svp;
851 if ((svp = hv_fetch(hv, "toaster", 7, FALSE)))
852 toaster = *svp;
853 if ((svp = hv_fetch(hv, "deepcopy", 8, FALSE)))
854 deepcopy = SvTRUE(*svp);
855 if ((svp = hv_fetch(hv, "quotekeys", 9, FALSE)))
856 quotekeys = SvTRUE(*svp);
857 if ((svp = hv_fetch(hv, "bless", 5, FALSE)))
858 bless = *svp;
a2126434
JN
859 if ((svp = hv_fetch(hv, "maxdepth", 8, FALSE)))
860 maxdepth = SvIV(*svp);
823edd99
GS
861 postav = newAV();
862
863 if (todumpav)
864 imax = av_len(todumpav);
865 else
866 imax = -1;
7820172a 867 valstr = newSVpvn("",0);
823edd99
GS
868 for (i = 0; i <= imax; ++i) {
869 SV *newapad;
6cde4e94 870
823edd99
GS
871 av_clear(postav);
872 if ((svp = av_fetch(todumpav, i, FALSE)))
873 val = *svp;
874 else
3280af22 875 val = &PL_sv_undef;
823edd99
GS
876 if ((svp = av_fetch(namesav, i, TRUE)))
877 sv_setsv(name, *svp);
878 else
8063af02 879 (void)SvOK_off(name);
6cde4e94 880
823edd99
GS
881 if (SvOK(name)) {
882 if ((SvPVX(name))[0] == '*') {
883 if (SvROK(val)) {
884 switch (SvTYPE(SvRV(val))) {
885 case SVt_PVAV:
886 (SvPVX(name))[0] = '@';
887 break;
888 case SVt_PVHV:
889 (SvPVX(name))[0] = '%';
890 break;
891 case SVt_PVCV:
892 (SvPVX(name))[0] = '*';
893 break;
894 default:
895 (SvPVX(name))[0] = '$';
896 break;
897 }
898 }
899 else
900 (SvPVX(name))[0] = '$';
901 }
902 else if ((SvPVX(name))[0] != '$')
903 sv_insert(name, 0, 0, "$", 1);
904 }
905 else {
906 STRLEN nchars = 0;
907 sv_setpvn(name, "$", 1);
908 sv_catsv(name, varname);
faccc32b 909 (void) sprintf(tmpbuf, "%"IVdf, (IV)(i+1));
823edd99
GS
910 nchars = strlen(tmpbuf);
911 sv_catpvn(name, tmpbuf, nchars);
912 }
6cde4e94 913
823edd99 914 if (indent >= 2) {
cea2e8a9 915 SV *tmpsv = sv_x(aTHX_ Nullsv, " ", 1, SvCUR(name)+3);
823edd99
GS
916 newapad = newSVsv(apad);
917 sv_catsv(newapad, tmpsv);
918 SvREFCNT_dec(tmpsv);
919 }
920 else
921 newapad = apad;
6cde4e94 922
cea2e8a9 923 DD_dump(aTHX_ val, SvPVX(name), SvCUR(name), valstr, seenhv,
823edd99
GS
924 postav, &level, indent, pad, xpad, newapad, sep,
925 freezer, toaster, purity, deepcopy, quotekeys,
a2126434 926 bless, maxdepth);
6cde4e94 927
823edd99
GS
928 if (indent >= 2)
929 SvREFCNT_dec(newapad);
930
931 postlen = av_len(postav);
932 if (postlen >= 0 || !terse) {
933 sv_insert(valstr, 0, 0, " = ", 3);
934 sv_insert(valstr, 0, 0, SvPVX(name), SvCUR(name));
935 sv_catpvn(valstr, ";", 1);
936 }
937 sv_catsv(retval, pad);
938 sv_catsv(retval, valstr);
939 sv_catsv(retval, sep);
940 if (postlen >= 0) {
941 I32 i;
942 sv_catsv(retval, pad);
943 for (i = 0; i <= postlen; ++i) {
944 SV *elem;
945 svp = av_fetch(postav, i, FALSE);
946 if (svp && (elem = *svp)) {
947 sv_catsv(retval, elem);
948 if (i < postlen) {
949 sv_catpvn(retval, ";", 1);
950 sv_catsv(retval, sep);
951 sv_catsv(retval, pad);
952 }
953 }
954 }
955 sv_catpvn(retval, ";", 1);
956 sv_catsv(retval, sep);
957 }
958 sv_setpvn(valstr, "", 0);
959 if (gimme == G_ARRAY) {
960 XPUSHs(sv_2mortal(retval));
961 if (i < imax) /* not the last time thro ? */
7820172a 962 retval = newSVpvn("",0);
823edd99
GS
963 }
964 }
965 SvREFCNT_dec(postav);
966 SvREFCNT_dec(valstr);
967 }
968 else
969 croak("Call to new() method failed to return HASH ref");
970 if (gimme == G_SCALAR)
971 XPUSHs(sv_2mortal(retval));
972 }