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Revision: 1.180
Committed: Tue Aug 28 16:16:17 2018 UTC (5 years, 8 months ago) by root
Branch: MAIN
Changes since 1.179: +3 -1 lines
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# Content
1 Revision history for Perl extension JSON::XS
2
3 TODO: maybe detetc and croak on more invalid inputs (e.g. +-inf/nan)
4 TODO: maybe avoid the reblessing and better support readonly objects.
5 TODO: http://stevehanov.ca/blog/index.php?id=104 compression
6 TODO: how to cope with tagged values and standard json decoders
7 TODO: investigate magic (Eric Brine)
8 TODO: rfc7464
9 TODO: Victor Efimov
10 TODO: move json_xs to types::serialiser?
11
12 TODO: [PATCH] Types::Serialiser: Inline true(), false() and error() functions
13
14 TODO: document & testcase ->boolean_values (aristoteles).
15 3.04 Thu Aug 17 04:30:47 CEST 2017
16 - change exponential realloc algorithm on encoding and string decoding to be
17 really exponential (this helps slow/debugging allocators such as libumem)
18 (reported by Matthew Horsfall).
19 - string encoding would needlessly overallocate output space
20 (testcase by Matthew Horsfall).
21 - be very paranoid about extending buffer lengths and croak if buffers get too large,
22 which might (or might not) improve security.
23 - add cbor-packed type to json_xs.
24 - switch from YAML to YAML::XS in json_xs, as YAML is way too buggy and outdated.
25
26 3.03 Wed Nov 16 20:20:59 CET 2016
27 - fix a bug introduced by a perl bug workaround that would cause
28 incremental parsing to fail with a sv_chop panic.
29 - json_xs: toformat failure error message fixed.
30 - json_xs: allow cyclic data structures in CBOR.
31
32 3.02 Fri Feb 26 22:45:20 CET 2016
33 - allow_nonref now affects booleans (\1, $Types::Serialiser::Boolean)
34 as well (reported by Alex Efros).
35 - allow literal tabs in strings in relaxed mode (patch by
36 lubo.rintel@gooddata.com).
37 - support "cbor" format in json_xs tool.
38 - support (and fix) calling encode and decode in list context
39 (reported by Вадим Власов).
40 - work around a bug in older perls crashing when presented
41 with shared hash keys (Reini Urban).
42 - use stability canary.
43
44 3.01 Tue Oct 29 16:55:15 CET 2013
45 - backport to perls < 5.18 (reported by Paul Howarth).
46
47 3.0 Tue Oct 29 01:35:37 CET 2013
48 - implemented an object tagging extension (using the
49 Types::Serialiser serialisation protocol).
50 - reworked the documentation regarding object serialisation,
51 add a new OBJECT SERIALISATION section that explains th
52 whole process.
53 - new setting: allow_tags.
54 - switch to Types::Serialiser booleans.
55 - remove to_json/from_json.
56 - other minor improvements to the documentation.
57
58 2.34 Thu May 23 11:30:34 CEST 2013
59 - work around bugs in perl 5.18 breaking more than 100
60 widely used modules, without a fix in sight because
61 p5pers don't care about CPAN anymore.
62 - when canonicalising, only allocate up to 64 hash key
63 pointers on the stack. for larger hashes, use the heap,
64 to avoid using too much stackspace.
65 - discuss the problem with setlocale (reported by a few victims).
66
67 2.33 Wed Aug 1 21:03:52 CEST 2012
68 - internal encode/decode XS wrappers did not expect stack
69 moves caused by callbacks (analyzed and testcase by Jesse Luehrs).
70 - add bencode as to/from option in bin/json_xs.
71 - add -e option to json_xs, and none and string in/out formats.
72
73 2.32 Thu Aug 11 19:06:38 CEST 2011
74 - fix a bug in the initial whitespace accumulation.
75
76 2.31 Wed Jul 27 17:53:05 CEST 2011
77 - don't accumulate initial whitespace in the incremental buffer
78 (this can be useful to allow whitespace-keepalive on a tcp
79 connection without triggering the max_size limit).
80 - properly croak on some invalid inputs that are not strings
81 (e.g. undef) when trying to decode a json text (reported
82 and analyzed by Goro Fuji).
83
84 2.3 Wed Aug 18 01:26:47 CEST 2010
85 - make sure decoder doesn't change the decoding in the incremental
86 parser (testcase provided by Hendrik Schumacher).
87 - applied patch by DaTa for Data::Dumper support in json_xs.
88 - added -t dump support to json_xs, using Data::Dump.
89 - added -f eval support to json_xs.
90
91 2.29 Wed Mar 17 02:39:12 CET 2010
92 - fix a memory leak when callbacks set using filter_json_object
93 or filter_json_single_key_object were called (great testcase
94 by Eric Wilhelm).
95
96 2.28 Thu Mar 11 20:30:46 CET 2010
97 - implement our own atof function - perl's can be orders of
98 magnitudes slower than even the system one. on the positive
99 side, ours seems to be more exact in general than perl's.
100 (testcase provided by Tim Meadowcroft).
101 - clarify floating point conversion issues a bit.
102 - update jpsykes csrf article url.
103 - updated benchmark section - JSON::PP became much faster!
104
105 2.27 Thu Jan 7 07:35:08 CET 2010
106 - support relaxed option inside the incremental parser
107 (testcase provided by IKEGAMI via Makamaka).
108
109 2.26 Sat Oct 10 03:26:19 CEST 2009
110 - big integers could become truncated (based on patch
111 by Strobl Anton).
112 - output format change: indent now adds a final newline, which is
113 more expected and more true to the documentation.
114
115 2.25 Sat Aug 8 12:04:41 CEST 2009
116 - the perl debugger completely breaks lvalue subs - try to work
117 around the issue.
118 - ignore RMAGICAL hashes w.r.t. CANONICAL.
119 - try to work around a possible char signedness issue on aix.
120 - require common sense.
121
122 2.24 Sat May 30 08:25:45 CEST 2009
123 - the incremental parser did not update its parse offset
124 pointer correctly when parsing utf8-strings (nicely
125 debugged by Martin Evans).
126 - appending a non-utf8-string to the incremental parser
127 in utf8 mode failed to upgrade the string.
128 - wording of parse error messages has been improved.
129
130 2.232 Sun Feb 22 11:12:25 CET 2009
131 - use an exponential algorithm to extend strings, to
132 help platforms with bad or abysmal==windows memory
133 allocater performance, at the expense of some memory
134 wastage (use shrink to recover this extra memory).
135 (nicely analysed by Dmitry Karasik).
136
137 2.2311 Thu Feb 19 02:12:54 CET 2009
138 - add a section "JSON and ECMAscript" to explain some
139 incompatibilities between the two (problem was noted by
140 various people).
141 - add t/20_faihu.t.
142
143 2.231 Thu Nov 20 04:59:08 CET 2008
144 - work around 5.10.0 magic bugs where manipulating magic values
145 (such as $1) would permanently damage them as perl would
146 ignore the magicalness, by making a full copy of the string,
147 reported by Dmitry Karasik.
148 - work around spurious warnings under older perl 5.8's.
149
150 2.23 Mon Sep 29 05:08:29 CEST 2008
151 - fix a compilation problem when perl is not using char * as, well,
152 char *.
153 - use PL_hexdigit in favour of rolling our own.
154
155 2.2222 Sun Jul 20 18:49:00 CEST 2008
156 - same game again, broken 5.10 finds yet another assertion
157 failure, and the workaround causes additional runtime warnings.
158 Work around the next assertion AND the warning. 5.10 seriously
159 needs to adjust it's attitude against working code.
160
161 2.222 Sat Jul 19 06:15:34 CEST 2008
162 - you work around one -DDEBUGGING assertion bug in perl 5.10
163 just to hit the next one. work around this one, too.
164
165 2.22 Tue Jul 15 13:26:51 CEST 2008
166 - allow higher nesting levels in incremental parser.
167 - error out earlier in some cases in the incremental parser
168 (as suggested by Yuval Kogman).
169 - improve incr-parser test (Yuval Kogman).
170
171 2.21 Tue Jun 3 08:43:23 CEST 2008
172 - (hopefully) work around a perl 5.10 bug with -DDEBUGGING.
173 - remove the experimental status of the incremental parser interface.
174 - move =encoding around again, to avoid bugs with search.cpan.org.
175 when can we finally have utf-8 in pod???
176 - add ->incr_reset method.
177
178 2.2 Wed Apr 16 20:37:25 CEST 2008
179 - lifted the log2 rounding restriction of max_depth and max_size.
180 - make booleans mutable by creating a copy instead of handing out
181 the same scalar (reported by pasha sadri).
182 - added support for incremental json parsing (still EXPERIMENTAL).
183 - implemented and added a json_xs command line utility that can convert
184 from/to a number of serialisation formats - tell me if you need more.
185 - implement allow_unknown/get_allow_unknown methods.
186 - fixed documentation of max_depth w.r.t. higher and equal.
187 - moved down =encoding directive a bit, too much breaks if it's the first
188 pod directive :/.
189 - removed documentation section on other modules, it became somewhat
190 outdated and is nowadays mostly of historical interest.
191
192 2.1 Wed Mar 19 23:23:18 CET 2008
193 - update documentation here and there: add a large section
194 about utf8/latin1/ascii flags, add a security consideration
195 and extend and clarify the JSON and YAML section.
196 - medium speed enhancements when encoding/decoding non-ascii chars.
197 - minor speedup in number encoding case.
198 - extend and clarify the section on incompatibilities
199 between YAML and JSON.
200 - switch to static inline from just inline when using gcc.
201 - add =encoding utf-8 to the manpage, now that perl 5.10 supports it.
202 - fix some issues with UV to JSON conversion of unknown impact.
203 - published the yahoo locals search result used in benchmarks as the
204 original url changes so comparison is impossible.
205
206 2.01 Wed Dec 5 11:40:28 CET 2007
207 - INCOMPATIBLE API CHANGE: to_json and from_json have been
208 renamed to encode_json/decode_json for JSON.pm compatibility.
209 The old functions croak and might be replaced by JSON.pm
210 comaptible versions in some later release.
211
212 2.0 Tue Dec 4 11:30:46 CET 2007
213 - this is supposed to be the first version of JSON::XS
214 compatible with version 2.0+ of the JSON module.
215 Using the JSON module as frontend to JSON::XS should be
216 as fast as using JSON::XS directly, so consider using it
217 instead.
218 - added get_* methods for all "simple" options.
219 - make JSON::XS subclassable.
220
221 1.53 Tue Nov 13 23:58:33 CET 2007
222 - minor doc clarifications.
223 - fixed many doc typos (patch by Thomas L. Shinnick).
224
225 1.52 Mon Oct 15 03:22:06 CEST 2007
226 - remove =encoding pod directive again, it confuses too many pod
227 parsers :/.
228
229 1.51 Sat Oct 13 03:55:56 CEST 2007
230 - encode empty arrays/hashes in a compact way when pretty is enabled.
231 - apparently JSON::XS was used to find some bugs in the
232 JSON_checker testsuite, so add (the corrected) JSON_checker tests to
233 the testsuite.
234 - quite a bit of doc updates/extension.
235 - require 5.8.2, as this seems to be the first unicode-stable version.
236
237 1.5 Tue Aug 28 04:05:38 CEST 2007
238 - add support for tied hashes, based on ideas and testcase by
239 Marcus Holland-Moritz.
240 - implemented relaxed parsing mode where some extensions are being
241 accepted. generation is still JSON-only.
242
243 1.44 Wed Aug 22 01:02:44 CEST 2007
244 - very experimental process-emulation support, slowing everything down.
245 the horribly broken perl threads are still not supported - YMMV.
246
247 1.43 Thu Jul 26 13:26:37 CEST 2007
248 - convert big json numbers exclusively consisting of digits to NV
249 only when there is no loss of precision, otherwise to string.
250
251 1.42 Tue Jul 24 00:51:18 CEST 2007
252 - fix a crash caused by not handling missing array elements
253 (report and testcase by Jay Kuri).
254
255 1.41 Tue Jul 10 18:21:44 CEST 2007
256 - fix compilation with NDEBUG (assert side-effect),
257 affects convert_blessed only.
258 - fix a bug in decode filters calling ENTER; SAVETMPS;
259 one time too often.
260 - catch a typical error in TO_JSON methods.
261 - antique-ised XS.xs again to work with outdated
262 C compilers (windows...).
263
264 1.4 Mon Jul 2 10:06:30 CEST 2007
265 - add convert_blessed setting.
266 - encode did not catch all blessed objects, encoding their
267 contents in most cases. This has been fixed by introducing
268 the allow_blessed setting.
269 - added filter_json_object and filter_json_single_key_object
270 settings that specify a callback to be called when
271 all/specific json objects are encountered.
272 - assume that most object keys are simple ascii words and
273 optimise this case, penalising the general case. This can
274 speed up decoding by 30% in typical cases and gives
275 a smaller and faster perl hash.
276 - implemented simpleminded, optional resource size checking
277 in decode_json.
278 - remove objToJson/jsonToObj aliases, as the next version
279 of JSON will not have them either.
280 - bit the bullet and converted the very simple json object
281 into a more complex one.
282 - work around a bug where perl wrongly claims an integer
283 is not an integer.
284 - unbundle JSON::XS::Boolean into own pm file so Storable
285 and similar modules can resolve the overloading when thawing.
286
287 1.3 Sun Jun 24 01:55:02 CEST 2007
288 - make JSON::XS::true and false special overloaded objects
289 and return those instead of 1 and 0 for those json atoms
290 (JSON::PP compatibility is NOT achieved yet).
291 - add JSON::XS::is_bool predicate to test for those special
292 values.
293 - add a reference to
294 http://jpsykes.com/47/practical-csrf-and-json-security.
295 - removed require 5.8.8 again, it is just not very expert-friendly.
296 Also try to be more compatible with slightly older versions,
297 which are not recommended (because they are buggy).
298
299 1.24 Mon Jun 11 05:40:49 CEST 2007
300 - added informative section on JSON-as-YAML.
301 - get rid of some c99-isms again.
302 - localise dec->cur in decode_str, speeding up
303 string decoding considerably (>15% on my amd64 + gcc).
304 - increased SHORT_STRING_LEN to 16kb: stack space is
305 usually plenty, and this actually saves memory
306 when !shrinking as short strings will fit perfectly.
307
308 1.23 Wed Jun 6 20:13:06 CEST 2007
309 - greatly improved small integer encoding and decoding speed.
310 - implement a number of µ-optimisations.
311 - updated benchmarks.
312
313 1.22 Thu May 24 00:07:25 CEST 2007
314 - require 5.8.8 explicitly as older perls do not seem to offer
315 the required macros.
316 - possibly made it compile on so-called C compilers by microsoft.
317
318 1.21 Wed May 9 18:40:32 CEST 2007
319 - character offset reported for trailing garbage was random.
320
321 1.2 Wed May 9 18:35:01 CEST 2007
322 - decode did not work with magical scalars (doh!).
323 - added latin1 flag to produce JSON texts in the latin1 subset
324 of unicode.
325 - flag trailing garbage as error.
326 - new decode_prefix method that returns the number
327 of characters consumed by a decode.
328 - max octets/char in perls UTF-X is actually 13, not 11,
329 as pointed out by Glenn Linderman.
330 - fixed typoe reported by YAMASHINA Hio.
331
332 1.11 Mon Apr 9 07:05:49 CEST 2007
333 - properly 0-terminate sv's returned by encode to help
334 C libraries that expect that 0 to be there.
335 - partially "port" JSON from C to microsofts fucking broken
336 pseudo-C. They should be burned to the ground for pissing
337 on standards. And I should be stoned for even trying to
338 support this filthy excuse for a c compiler.
339
340 1.1 Wed Apr 4 01:45:00 CEST 2007
341 - clarify documentation (pointed out by Quinn Weaver).
342 - decode_utf8 sometimes did not correctly flag errors,
343 leading to segfaults.
344 - further reduced default nesting depth to 512 due to the test
345 failure by that anonymous "chris" whose e-mail address seems
346 to be impossible to get. Tests on other freebsd systems indicate
347 that this is likely a problem in his/her configuration and not this
348 module.
349 - renamed json => JSON in error messages.
350 - corrected the character offset in some error messages.
351
352 1.01 Sat Mar 31 16:15:40 CEST 2007
353 - do not segfault when from_json/decode gets passed
354 a non-string object (reported by Florian Ragwitz).
355 This has no effect on normal operation.
356
357 1.0 Thu Mar 29 04:43:34 CEST 2007
358 - the long awaited (by me) 1.0 version.
359 - add \0 (JSON::XS::false) and \1 (JSON::XS::true) mappings to JSON
360 true and false.
361 - add some more notes to shrink, as suggested by Alex Efros.
362 - improve testsuite.
363 - halve the default nesting depth limit, to hopefully make it
364 work on Freebsd (unfortunately, the cpan tester did not
365 send me his report, so I cannot ask about the stack limit on fbsd).
366
367 0.8 Mon Mar 26 00:10:48 CEST 2007
368 - fix a memleak when decoding hashes.
369 - export jsonToBj and objToJson as aliases
370 to to_json and from_json, to reduce incompatibilities
371 between JSON/JSON::PC and JSON::XS. (experimental).
372 - implement a maximum nesting depth for both en- and de-coding.
373 - added a security considerations sections.
374
375 0.7 Sun Mar 25 01:46:30 CET 2007
376 - code cleanup.
377 - fix a memory overflow bug when indenting.
378 - pretty-printing now up to 15% faster.
379 - improve decoding speed of strings by
380 up to 50% by specialcasing short strings.
381 - further decoding speedups for strings using
382 lots of \u escapes.
383 - improve utf8 decoding speed for U+80 .. U+7FF.
384
385 0.5 Sat Mar 24 20:41:51 CET 2007
386 - added the UTF-16 encoding example hinted at in previous
387 versions.
388 - minor documentation fixes.
389 - fix a bug in and optimise canonicalising fastpath
390 (reported by Craig Manley).
391 - remove a subtest that breaks with bleadperl (reported
392 by Andreas König).
393
394 0.31 Sat Mar 24 02:14:34 CET 2007
395 - documentation updates.
396 - do some casting to hopefully fix Andreas' problem.
397 - nuke bogus json rpc stuff.
398
399 0.3 Fri Mar 23 19:33:21 CET 2007
400 - remove spurious PApp::Util reference (John McNamara).
401 - adapted lots of tests from other json modules
402 (idea by Chris Carline).
403 - documented mapping from json to perl and vice versa.
404 - improved the documentation by adding more examples.
405 - added short escaping forms, reducing the created
406 json texts a bit.
407 - added shrink flag.
408 - when flag methods are called without enable argument
409 they will by default enable their flag.
410 - considerably improved string encoding speed (at least
411 with gcc 4).
412 - added a test that covers lots of different characters.
413 - clarified some error messages.
414 - error messages now use correct character offset
415 with F_UTF8.
416 - improve the "no bytes" and "no warnings" hacks in
417 case the called functions do... stuff.
418 - croak when encoding to ascii and an out-of-range
419 (non-unicode) codepoint is encountered.
420
421 0.2 Fri Mar 23 00:23:34 CET 2007
422 - the "could not sleep without debugging release".
423 it should basically work now, with many bugs as
424 no production tests have been run yet.
425 - added more testcases.
426 - the expected shitload of bugfixes.
427 - handle utf8 flag correctly in decode.
428 - fix segfault in decoder.
429 - utf8n_to_uvuni sets retlen to -1, but retlen is an
430 unsigned types (argh).
431 - fix decoding of utf-8 strings.
432 - improved error diagnostics.
433 - fix decoding of 'null'.
434 - fix parsing of empty array/hashes
435 - silence warnings when we prepare the croak message.
436
437 0.1 Thu Mar 22 22:13:43 CET 2007
438 - first release, very untested, basically just to claim
439 the namespace.
440
441 0.01 Thu Mar 22 06:08:12 CET 2007
442 - original version; cloned from Convert-Scalar
443