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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 31 I32 purity, I32 deepcopy, I32 quotekeys, SV *bless,
e9105f86 32 I32 maxdepth, SV *sortkeys);
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,
e9105f86 182 I32 deepcopy, I32 quotekeys, SV *bless, I32 maxdepth, SV *sortkeys)
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 $o = ", 13);
cea2e8a9 354 DD_dump(aTHX_ ival, SvPVX(namesv), SvCUR(namesv), retval, seenhv,
7820172a 355 postav, levelp, indent, pad, xpad, apad, sep,
a2126434 356 freezer, toaster, purity, deepcopy, quotekeys, bless,
e9105f86 357 maxdepth, sortkeys);
823edd99 358 sv_catpvn(retval, ")}", 2);
7820172a 359 } /* plain */
823edd99
GS		 360 else {
361 sv_catpvn(retval, "\\", 1);
cea2e8a9 362 DD_dump(aTHX_ ival, SvPVX(namesv), SvCUR(namesv), retval, seenhv,
7820172a 363 postav, levelp, indent, pad, xpad, apad, sep,
a2126434 364 freezer, toaster, purity, deepcopy, quotekeys, bless,
e9105f86 365 maxdepth, sortkeys);
823edd99 366 }
7820172a
GS		 367 SvREFCNT_dec(namesv);
368 }
369 else if (realtype == SVt_PVGV) { /* glob ref */
370 SV *namesv = newSVpvn("*{", 2);
371 sv_catpvn(namesv, name, namelen);
372 sv_catpvn(namesv, "}", 1);
373 sv_catpvn(retval, "\\", 1);
cea2e8a9 374 DD_dump(aTHX_ ival, SvPVX(namesv), SvCUR(namesv), retval, seenhv,
7820172a 375 postav, levelp, indent, pad, xpad, apad, sep,
a2126434 376 freezer, toaster, purity, deepcopy, quotekeys, bless,
e9105f86 377 maxdepth, sortkeys);
7820172a 378 SvREFCNT_dec(namesv);
823edd99
GS		 379 }
380 else if (realtype == SVt_PVAV) {
381 SV *totpad;
382 I32 ix = 0;
383 I32 ixmax = av_len((AV *)ival);
6cde4e94 384
823edd99
GS		 385 SV *ixsv = newSViv(0);
386 /* allowing for a 24 char wide array index */
387 New(0, iname, namelen+28, char);
388 (void)strcpy(iname, name);
389 inamelen = namelen;
390 if (name[0] == '@') {
391 sv_catpvn(retval, "(", 1);
392 iname[0] = '$';
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 445 freezer, toaster, purity, deepcopy, quotekeys, bless,
e9105f86 446 maxdepth, sortkeys);
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;
e9105f86 471 AV *keys = Nullav;
6cde4e94 472
7820172a 473 iname = newSVpvn(name, namelen);
823edd99
GS		 474 if (name[0] == '%') {
475 sv_catpvn(retval, "(", 1);
476 (SvPVX(iname))[0] = '$';
477 }
478 else {
479 sv_catpvn(retval, "{", 1);
7820172a
GS		 480 /* omit "->" in $foo[0]->{bar}, but not in ${$foo}->{bar} */
481 if ((namelen > 0
482 && name[namelen-1] != ']' && name[namelen-1] != '}')
483 || (namelen > 4
484 && (name[1] == '{'
485 || (name[0] == '\\' && name[2] == '{'))))
486 {
823edd99
GS		 487 sv_catpvn(iname, "->", 2);
488 }
489 }
490 if (name[0] == '*' && name[namelen-1] == '}' && namelen >= 8 &&
491 (instr(name+namelen-8, "{SCALAR}") ||
492 instr(name+namelen-7, "{ARRAY}") ||
493 instr(name+namelen-6, "{HASH}"))) {
494 sv_catpvn(iname, "->", 2);
495 }
496 sv_catpvn(iname, "{", 1);
497 totpad = newSVsv(sep);
498 sv_catsv(totpad, pad);
499 sv_catsv(totpad, apad);
6cde4e94 500
e9105f86
IN		 501 /* If requested, get a sorted/filtered array of hash keys */
502 if (sortkeys) {
503 if (sortkeys == &PL_sv_yes) {
504 keys = newAV();
505 (void)hv_iterinit((HV*)ival);
20d72259 506 while ((entry = hv_iternext((HV*)ival))) {
e9105f86
IN		 507 sv = hv_iterkeysv(entry);
508 SvREFCNT_inc(sv);
509 av_push(keys, sv);
510 }
503ec68f 511#ifdef USE_LOCALE_NUMERIC
e9105f86
IN		 512 sortsv(AvARRAY(keys),
513 av_len(keys)+1,
3c253d0e 514 IN_LOCALE ? Perl_sv_cmp_locale : Perl_sv_cmp);
02a99678 515#else
503ec68f
JH		 516 sortsv(AvARRAY(keys),
517 av_len(keys)+1,
518 Perl_sv_cmp);
02a99678 519#endif
e9105f86
IN		 520 }
521 else {
522 dSP; ENTER; SAVETMPS; PUSHMARK(sp);
523 XPUSHs(sv_2mortal(newRV_inc(ival))); PUTBACK;
524 i = perl_call_sv(sortkeys, G_SCALAR | G_EVAL);
525 SPAGAIN;
526 if (i) {
527 sv = POPs;
528 if (SvROK(sv) && (SvTYPE(SvRV(sv)) == SVt_PVAV))
529 keys = (AV*)SvREFCNT_inc(SvRV(sv));
530 }
531 if (! keys)
532 warn("Sortkeys subroutine did not return ARRAYREF\n");
533 PUTBACK; FREETMPS; LEAVE;
534 }
535 if (keys)
536 sv_2mortal((SV*)keys);
537 }
538 else
539 (void)hv_iterinit((HV*)ival);
ecfc8647
AMS		 540
541 /* foreach (keys %hash) */
542 for (i = 0; 1; i++) {
dc71dc59 543 char *nkey = NULL;
823edd99 544 I32 nticks = 0;
dc71dc59
JH		 545 SV* keysv;
546 STRLEN keylen;
547 bool do_utf8 = FALSE;
ecfc8647
AMS		 548
549 if ((sortkeys && !(keys && i <= av_len(keys))) ||
550 !(entry = hv_iternext((HV *)ival)))
551 break;
552
823edd99
GS		 553 if (i)
554 sv_catpvn(retval, ",", 1);
e9105f86
IN		 555
556 if (sortkeys) {
557 char *key;
558 svp = av_fetch(keys, i, FALSE);
559 keysv = svp ? *svp : sv_mortalcopy(&PL_sv_undef);
560 key = SvPV(keysv, keylen);
561 svp = hv_fetch((HV*)ival, key, keylen, 0);
562 hval = svp ? *svp : sv_mortalcopy(&PL_sv_undef);
563 }
564 else {
565 keysv = hv_iterkeysv(entry);
566 hval = hv_iterval((HV*)ival, entry);
567 }
568
dc71dc59
JH		 569 do_utf8 = DO_UTF8(keysv);
570 key = SvPV(keysv, keylen);
571 klen = keylen;
572
573 if (do_utf8) {
574 char *okey = SvPVX(retval) + SvCUR(retval);
575 I32 nlen;
576
577 sv_catsv(retval, totpad);
578 sv_catsv(retval, ipad);
6cde4e94 579 nlen = esc_q_utf8(aTHX_ retval, key, klen);
dc71dc59
JH		 580
581 sname = newSVsv(iname);
582 sv_catpvn(sname, okey, nlen);
583 sv_catpvn(sname, "}", 1);
823edd99
GS		 584 }
585 else {
dc71dc59
JH		 586 if (quotekeys || needs_quote(key)) {
587 nticks = num_q(key, klen);
588 New(0, nkey, klen+nticks+3, char);
589 nkey[0] = '\'';
590 if (nticks)
591 klen += esc_q(nkey+1, key, klen);
592 else
593 (void)Copy(key, nkey+1, klen, char);
594 nkey[++klen] = '\'';
595 nkey[++klen] = '\0';
596 }
597 else {
598 New(0, nkey, klen, char);
599 (void)Copy(key, nkey, klen, char);
600 }
823edd99 601
dc71dc59
JH		 602 sname = newSVsv(iname);
603 sv_catpvn(sname, nkey, klen);
604 sv_catpvn(sname, "}", 1);
605
606 sv_catsv(retval, totpad);
607 sv_catsv(retval, ipad);
608 sv_catpvn(retval, nkey, klen);
609 }
823edd99
GS		 610 sv_catpvn(retval, " => ", 4);
611 if (indent >= 2) {
612 char *extra;
613 I32 elen = 0;
614 newapad = newSVsv(apad);
615 New(0, extra, klen+4+1, char);
616 while (elen < (klen+4))
617 extra[elen++] = ' ';
618 extra[elen] = '\0';
619 sv_catpvn(newapad, extra, elen);
620 Safefree(extra);
621 }
622 else
623 newapad = apad;
624
cea2e8a9 625 DD_dump(aTHX_ hval, SvPVX(sname), SvCUR(sname), retval, seenhv,
823edd99 626 postav, levelp, indent, pad, xpad, newapad, sep,
a2126434 627 freezer, toaster, purity, deepcopy, quotekeys, bless,
e9105f86 628 maxdepth, sortkeys);
823edd99
GS		 629 SvREFCNT_dec(sname);
630 Safefree(nkey);
631 if (indent >= 2)
632 SvREFCNT_dec(newapad);
633 }
634 if (i) {
cea2e8a9 635 SV *opad = sv_x(aTHX_ Nullsv, SvPVX(xpad), SvCUR(xpad), *levelp-1);
823edd99
GS		 636 sv_catsv(retval, totpad);
637 sv_catsv(retval, opad);
638 SvREFCNT_dec(opad);
639 }
640 if (name[0] == '%')
641 sv_catpvn(retval, ")", 1);
642 else
643 sv_catpvn(retval, "}", 1);
644 SvREFCNT_dec(iname);
645 SvREFCNT_dec(totpad);
646 }
647 else if (realtype == SVt_PVCV) {
648 sv_catpvn(retval, "sub { \"DUMMY\" }", 15);
649 if (purity)
650 warn("Encountered CODE ref, using dummy placeholder");
651 }
652 else {
653 warn("cannot handle ref type %ld", realtype);
654 }
655
656 if (realpack) { /* free blessed allocs */
657 if (indent >= 2) {
658 SvREFCNT_dec(apad);
659 apad = blesspad;
660 }
661 sv_catpvn(retval, ", '", 3);
662 sv_catpvn(retval, realpack, strlen(realpack));
663 sv_catpvn(retval, "' )", 3);
664 if (toaster && SvPOK(toaster) && SvCUR(toaster)) {
665 sv_catpvn(retval, "->", 2);
666 sv_catsv(retval, toaster);
667 sv_catpvn(retval, "()", 2);
668 }
669 }
670 SvREFCNT_dec(ipad);
671 (*levelp)--;
672 }
673 else {
674 STRLEN i;
675
676 if (namelen) {
677 (void) sprintf(id, "0x%lx", (unsigned long)val);
678 if ((svp = hv_fetch(seenhv, id, (idlen = strlen(id)), FALSE)) &&
679 (sv = *svp) && SvROK(sv) &&
7820172a
GS		 680 (seenentry = (AV*)SvRV(sv)))
681 {
823edd99 682 SV *othername;
7820172a
GS		 683 if ((svp = av_fetch(seenentry, 0, FALSE)) && (othername = *svp)
684 && (svp = av_fetch(seenentry, 2, FALSE)) && *svp && SvIV(*svp) > 0)
685 {
686 sv_catpvn(retval, "${", 2);
823edd99 687 sv_catsv(retval, othername);
7820172a 688 sv_catpvn(retval, "}", 1);
823edd99
GS		 689 return 1;
690 }
691 }
692 else {
693 SV *namesv;
7820172a 694 namesv = newSVpvn("\\", 1);
823edd99
GS		 695 sv_catpvn(namesv, name, namelen);
696 seenentry = newAV();
697 av_push(seenentry, namesv);
7820172a 698 av_push(seenentry, newRV(val));
823edd99
GS		 699 (void)hv_store(seenhv, id, strlen(id), newRV((SV*)seenentry), 0);
700 SvREFCNT_dec(seenentry);
701 }
702 }
7820172a 703
823edd99
GS		 704 if (SvIOK(val)) {
705 STRLEN len;
0e8b3009 706 if (SvIsUV(val))
5e8f63cb 707 (void) sprintf(tmpbuf, "%"UVuf, SvUV(val));
0e8b3009
GS		 708 else
709 (void) sprintf(tmpbuf, "%"IVdf, SvIV(val));
823edd99 710 len = strlen(tmpbuf);
c4cce848
NC		 711 /* For 5.6.x and earlier will need to change this test to check
712 NV if NOK, as there NOK trumps IOK, and NV=3.5,IV=3 is valid.
713 Current code will Dump that as $VAR1 = 3;
714 Changes in 5.7 series mean that now IOK is only set if scalar
715 is precisely integer. */
716 if (SvPOK(val)) {
717 /* Need to check to see if this is a string such as " 0".
718 I'm assuming from sprintf isn't going to clash with utf8.
719 Is this valid on EBCDIC? */
720 STRLEN pvlen;
721 const char *pv = SvPV(val, pvlen);
722 if (pvlen != len || memNE(pv, tmpbuf, len))
723 goto integer_came_from_string;
724 }
725 if (len > 10) {
726 /* Looks like we're on a 64 bit system. Make it a string so that
727 if a 32 bit system reads the number it will cope better. */
728 sv_catpvf(retval, "'%s'", tmpbuf);
729 } else
730 sv_catpvn(retval, tmpbuf, len);
823edd99
GS		 731 }
732 else if (realtype == SVt_PVGV) {/* GLOBs can end up with scribbly names */
733 c = SvPV(val, i);
734 ++c; --i; /* just get the name */
735 if (i >= 6 && strncmp(c, "main::", 6) == 0) {
736 c += 4;
737 i -= 4;
738 }
739 if (needs_quote(c)) {
740 sv_grow(retval, SvCUR(retval)+6+2*i);
741 r = SvPVX(retval)+SvCUR(retval);
742 r[0] = '*'; r[1] = '{'; r[2] = '\'';
743 i += esc_q(r+3, c, i);
744 i += 3;
745 r[i++] = '\''; r[i++] = '}';
746 r[i] = '\0';
747 }
748 else {
749 sv_grow(retval, SvCUR(retval)+i+2);
750 r = SvPVX(retval)+SvCUR(retval);
751 r[0] = '*'; strcpy(r+1, c);
752 i++;
753 }
7820172a 754 SvCUR_set(retval, SvCUR(retval)+i);
823edd99
GS		 755
756 if (purity) {
757 static char *entries[] = { "{SCALAR}", "{ARRAY}", "{HASH}" };
758 static STRLEN sizes[] = { 8, 7, 6 };
759 SV *e;
7820172a
GS		 760 SV *nname = newSVpvn("", 0);
761 SV *newapad = newSVpvn("", 0);
823edd99
GS		 762 GV *gv = (GV*)val;
763 I32 j;
764
765 for (j=0; j<3; j++) {
766 e = ((j == 0) ? GvSV(gv) : (j == 1) ? (SV*)GvAV(gv) : (SV*)GvHV(gv));
7820172a
GS		 767 if (!e)
768 continue;
769 if (j == 0 && !SvOK(e))
770 continue;
771
772 {
823edd99 773 I32 nlevel = 0;
7820172a 774 SV *postentry = newSVpvn(r,i);
823edd99
GS		 775
776 sv_setsv(nname, postentry);
777 sv_catpvn(nname, entries[j], sizes[j]);
778 sv_catpvn(postentry, " = ", 3);
779 av_push(postav, postentry);
780 e = newRV(e);
781
782 SvCUR(newapad) = 0;
783 if (indent >= 2)
cea2e8a9 784 (void)sv_x(aTHX_ newapad, " ", 1, SvCUR(postentry));
823edd99 785
cea2e8a9 786 DD_dump(aTHX_ e, SvPVX(nname), SvCUR(nname), postentry,
823edd99
GS		 787 seenhv, postav, &nlevel, indent, pad, xpad,
788 newapad, sep, freezer, toaster, purity,
e9105f86
IN		 789 deepcopy, quotekeys, bless, maxdepth,
790 sortkeys);
823edd99
GS		 791 SvREFCNT_dec(e);
792 }
793 }
794
795 SvREFCNT_dec(newapad);
796 SvREFCNT_dec(nname);
797 }
798 }
7820172a
GS		 799 else if (val == &PL_sv_undef || !SvOK(val)) {
800 sv_catpvn(retval, "undef", 5);
801 }
823edd99 802 else {
c4cce848 803 integer_came_from_string:
823edd99 804 c = SvPV(val, i);
dc71dc59 805 if (DO_UTF8(val))
6cde4e94 806 i += esc_q_utf8(aTHX_ retval, c, i);
dc71dc59
JH		 807 else {
808 sv_grow(retval, SvCUR(retval)+3+2*i); /* 3: ""\0 */
809 r = SvPVX(retval) + SvCUR(retval);
810 r[0] = '\'';
811 i += esc_q(r+1, c, i);
812 ++i;
813 r[i++] = '\'';
814 r[i] = '\0';
815 SvCUR_set(retval, SvCUR(retval)+i);
816 }
823edd99 817 }
823edd99
GS		 818 }
819
7820172a
GS		 820 if (idlen) {
821 if (deepcopy)
822 (void)hv_delete(seenhv, id, idlen, G_DISCARD);
823 else if (namelen && seenentry) {
824 SV *mark = *av_fetch(seenentry, 2, TRUE);
825 sv_setiv(mark,1);
826 }
827 }
823edd99
GS		 828 return 1;
829}
830
831
832MODULE = Data::Dumper PACKAGE = Data::Dumper PREFIX = Data_Dumper_
833
834#
835# This is the exact equivalent of Dump. Well, almost. The things that are
836# different as of now (due to Laziness):
837# * doesnt do double-quotes yet.
838#
839
840void
841Data_Dumper_Dumpxs(href, ...)
842 SV *href;
843 PROTOTYPE: $;$$
844 PPCODE:
845 {
846 HV *hv;
847 SV *retval, *valstr;
848 HV *seenhv = Nullhv;
849 AV *postav, *todumpav, *namesav;
850 I32 level = 0;
497b47a8 851 I32 indent, terse, i, imax, postlen;
823edd99 852 SV **svp;
497b47a8 853 SV *val, *name, *pad, *xpad, *apad, *sep, *varname;
e9105f86 854 SV *freezer, *toaster, *bless, *sortkeys;
7b0972df 855 I32 purity, deepcopy, quotekeys, maxdepth = 0;
823edd99
GS		 856 char tmpbuf[1024];
857 I32 gimme = GIMME;
858
859 if (!SvROK(href)) { /* call new to get an object first */
0f1923bd
GS		 860 if (items < 2)
861 croak("Usage: Data::Dumper::Dumpxs(PACKAGE, VAL_ARY_REF, [NAME_ARY_REF])");
823edd99
GS		 862
863 ENTER;
864 SAVETMPS;
865
866 PUSHMARK(sp);
867 XPUSHs(href);
0f1923bd
GS		 868 XPUSHs(sv_2mortal(newSVsv(ST(1))));
869 if (items >= 3)
870 XPUSHs(sv_2mortal(newSVsv(ST(2))));
823edd99
GS		 871 PUTBACK;
872 i = perl_call_method("new", G_SCALAR);
873 SPAGAIN;
874 if (i)
875 href = newSVsv(POPs);
876
877 PUTBACK;
878 FREETMPS;
879 LEAVE;
880 if (i)
881 (void)sv_2mortal(href);
882 }
883
884 todumpav = namesav = Nullav;
885 seenhv = Nullhv;
497b47a8 886 val = pad = xpad = apad = sep = varname
3280af22 887 = freezer = toaster = bless = &PL_sv_undef;
823edd99
GS		 888 name = sv_newmortal();
889 indent = 2;
497b47a8 890 terse = purity = deepcopy = 0;
823edd99 891 quotekeys = 1;
6cde4e94 892
7820172a 893 retval = newSVpvn("", 0);
823edd99
GS		 894 if (SvROK(href)
895 && (hv = (HV*)SvRV((SV*)href))
896 && SvTYPE(hv) == SVt_PVHV) {
897
898 if ((svp = hv_fetch(hv, "seen", 4, FALSE)) && SvROK(*svp))
899 seenhv = (HV*)SvRV(*svp);
900 if ((svp = hv_fetch(hv, "todump", 6, FALSE)) && SvROK(*svp))
901 todumpav = (AV*)SvRV(*svp);
902 if ((svp = hv_fetch(hv, "names", 5, FALSE)) && SvROK(*svp))
903 namesav = (AV*)SvRV(*svp);
904 if ((svp = hv_fetch(hv, "indent", 6, FALSE)))
905 indent = SvIV(*svp);
906 if ((svp = hv_fetch(hv, "purity", 6, FALSE)))
907 purity = SvIV(*svp);
908 if ((svp = hv_fetch(hv, "terse", 5, FALSE)))
909 terse = SvTRUE(*svp);
497b47a8 910#if 0 /* useqq currently unused */
823edd99
GS		 911 if ((svp = hv_fetch(hv, "useqq", 5, FALSE)))
912 useqq = SvTRUE(*svp);
497b47a8 913#endif
823edd99
GS		 914 if ((svp = hv_fetch(hv, "pad", 3, FALSE)))
915 pad = *svp;
916 if ((svp = hv_fetch(hv, "xpad", 4, FALSE)))
917 xpad = *svp;
918 if ((svp = hv_fetch(hv, "apad", 4, FALSE)))
919 apad = *svp;
920 if ((svp = hv_fetch(hv, "sep", 3, FALSE)))
921 sep = *svp;
922 if ((svp = hv_fetch(hv, "varname", 7, FALSE)))
923 varname = *svp;
924 if ((svp = hv_fetch(hv, "freezer", 7, FALSE)))
925 freezer = *svp;
926 if ((svp = hv_fetch(hv, "toaster", 7, FALSE)))
927 toaster = *svp;
928 if ((svp = hv_fetch(hv, "deepcopy", 8, FALSE)))
929 deepcopy = SvTRUE(*svp);
930 if ((svp = hv_fetch(hv, "quotekeys", 9, FALSE)))
931 quotekeys = SvTRUE(*svp);
932 if ((svp = hv_fetch(hv, "bless", 5, FALSE)))
933 bless = *svp;
a2126434
JN		 934 if ((svp = hv_fetch(hv, "maxdepth", 8, FALSE)))
935 maxdepth = SvIV(*svp);
e9105f86
IN		 936 if ((svp = hv_fetch(hv, "sortkeys", 8, FALSE))) {
937 sortkeys = *svp;
938 if (! SvTRUE(sortkeys))
939 sortkeys = NULL;
940 else if (! (SvROK(sortkeys) &&
941 SvTYPE(SvRV(sortkeys)) == SVt_PVCV) )
942 {
943 /* flag to use qsortsv() for sorting hash keys */
944 sortkeys = &PL_sv_yes;
945 }
946 }
823edd99
GS		 947 postav = newAV();
948
949 if (todumpav)
950 imax = av_len(todumpav);
951 else
952 imax = -1;
7820172a 953 valstr = newSVpvn("",0);
823edd99
GS		 954 for (i = 0; i <= imax; ++i) {
955 SV *newapad;
6cde4e94 956
823edd99
GS		 957 av_clear(postav);
958 if ((svp = av_fetch(todumpav, i, FALSE)))
959 val = *svp;
960 else
3280af22 961 val = &PL_sv_undef;
823edd99
GS		 962 if ((svp = av_fetch(namesav, i, TRUE)))
963 sv_setsv(name, *svp);
964 else
8063af02 965 (void)SvOK_off(name);
6cde4e94 966
823edd99
GS		 967 if (SvOK(name)) {
968 if ((SvPVX(name))[0] == '*') {
969 if (SvROK(val)) {
970 switch (SvTYPE(SvRV(val))) {
971 case SVt_PVAV:
972 (SvPVX(name))[0] = '@';
973 break;
974 case SVt_PVHV:
975 (SvPVX(name))[0] = '%';
976 break;
977 case SVt_PVCV:
978 (SvPVX(name))[0] = '*';
979 break;
980 default:
981 (SvPVX(name))[0] = '$';
982 break;
983 }
984 }
985 else
986 (SvPVX(name))[0] = '$';
987 }
988 else if ((SvPVX(name))[0] != '$')
989 sv_insert(name, 0, 0, "$", 1);
990 }
991 else {
992 STRLEN nchars = 0;
993 sv_setpvn(name, "$", 1);
994 sv_catsv(name, varname);
faccc32b 995 (void) sprintf(tmpbuf, "%"IVdf, (IV)(i+1));
823edd99
GS		 996 nchars = strlen(tmpbuf);
997 sv_catpvn(name, tmpbuf, nchars);
998 }
6cde4e94 999
823edd99 1000 if (indent >= 2) {
cea2e8a9 1001 SV *tmpsv = sv_x(aTHX_ Nullsv, " ", 1, SvCUR(name)+3);
823edd99
GS		 1002 newapad = newSVsv(apad);
1003 sv_catsv(newapad, tmpsv);
1004 SvREFCNT_dec(tmpsv);
1005 }
1006 else
1007 newapad = apad;
6cde4e94 1008
cea2e8a9 1009 DD_dump(aTHX_ val, SvPVX(name), SvCUR(name), valstr, seenhv,
823edd99
GS		 1010 postav, &level, indent, pad, xpad, newapad, sep,
1011 freezer, toaster, purity, deepcopy, quotekeys,
e9105f86 1012 bless, maxdepth, sortkeys);
6cde4e94 1013
823edd99
GS		 1014 if (indent >= 2)
1015 SvREFCNT_dec(newapad);
1016
1017 postlen = av_len(postav);
1018 if (postlen >= 0 || !terse) {
1019 sv_insert(valstr, 0, 0, " = ", 3);
1020 sv_insert(valstr, 0, 0, SvPVX(name), SvCUR(name));
1021 sv_catpvn(valstr, ";", 1);
1022 }
1023 sv_catsv(retval, pad);
1024 sv_catsv(retval, valstr);
1025 sv_catsv(retval, sep);
1026 if (postlen >= 0) {
1027 I32 i;
1028 sv_catsv(retval, pad);
1029 for (i = 0; i <= postlen; ++i) {
1030 SV *elem;
1031 svp = av_fetch(postav, i, FALSE);
1032 if (svp && (elem = *svp)) {
1033 sv_catsv(retval, elem);
1034 if (i < postlen) {
1035 sv_catpvn(retval, ";", 1);
1036 sv_catsv(retval, sep);
1037 sv_catsv(retval, pad);
1038 }
1039 }
1040 }
1041 sv_catpvn(retval, ";", 1);
1042 sv_catsv(retval, sep);
1043 }
1044 sv_setpvn(valstr, "", 0);
1045 if (gimme == G_ARRAY) {
1046 XPUSHs(sv_2mortal(retval));
1047 if (i < imax) /* not the last time thro ? */
7820172a 1048 retval = newSVpvn("",0);
823edd99
GS		 1049 }
1050 }
1051 SvREFCNT_dec(postav);
1052 SvREFCNT_dec(valstr);
1053 }
1054 else
1055 croak("Call to new() method failed to return HASH ref");
1056 if (gimme == G_SCALAR)
1057 XPUSHs(sv_2mortal(retval));
1058 }
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