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Revision: 1.178
Committed: Thu Aug 17 03:47:54 2017 UTC (6 years, 9 months ago) by root
Branch: MAIN
CVS Tags: rel-3_04
Changes since 1.177: +1 -3 lines
Log Message:
3.04

File Contents

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21 - switch from YAML to YAML::XS in json_xs, as YAML is way too buggy and outdated.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