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Revision: 1.168
Committed: Sun Feb 21 16:18:19 2016 UTC (8 years, 2 months ago) by root
Branch: MAIN
Changes since 1.167: +2 -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
7 TODO: how to cope with tagged values and standard json decoders
8 TODO: work around <=5.16 bugs (Reini Urban)
9 TODO: decide what to do with RFC7158 incompatibilities.
10 TODO: investigate magic (Eric Brine)
11 - allow_nonref now affects booleans (\1, $Types::Serialiser::Boolean)
12 as well (reported by Alex Efros).
13 - allow literal tabs in strings in relaxed mode (patch by
14 lubo.rintel@gooddata.com).
15 - support "cbor" format in json_xs tool.
16 - support (and fix) calling encode and decode in list context
17 (reported by Вадим Власов).
18
19 3.01 Tue Oct 29 16:55:15 CET 2013
20 - backport to perls < 5.18 (reported by Paul Howarth).
21
22 3.0 Tue Oct 29 01:35:37 CET 2013
23 - implemented an object tagging extension (using the
24 Types::Serialiser serialisation protocol).
25 - reworked the documentation regarding object serialisation,
26 add a new OBJECT SERIALISATION section that explains th
27 whole process.
28 - new setting: allow_tags.
29 - switch to Types::Serialiser booleans.
30 - remove to_json/from_json.
31 - other minor improvements to the documentation.
32
33 2.34 Thu May 23 11:30:34 CEST 2013
34 - work around bugs in perl 5.18 breaking more than 100
35 widely used modules, without a fix in sight because
36 p5pers don't care about CPAN anymore.
37 - when canonicalising, only allocate up to 64 hash key
38 pointers on the stack. for larger hashes, use the heap,
39 to avoid using too much stackspace.
40 - discuss the problem with setlocale (reported by a few victims).
41
42 2.33 Wed Aug 1 21:03:52 CEST 2012
43 - internal encode/decode XS wrappers did not expect stack
44 moves caused by callbacks (analyzed and testcase by Jesse Luehrs).
45 - add bencode as to/from option in bin/json_xs.
46 - add -e option to json_xs, and none and string in/out formats.
47
48 2.32 Thu Aug 11 19:06:38 CEST 2011
49 - fix a bug in the initial whitespace accumulation.
50
51 2.31 Wed Jul 27 17:53:05 CEST 2011
52 - don't accumulate initial whitespace in the incremental buffer
53 (this can be useful to allow whitespace-keepalive on a tcp
54 connection without triggering the max_size limit).
55 - properly croak on some invalid inputs that are not strings
56 (e.g. undef) when trying to decode a json text (reported
57 and analyzed by Goro Fuji).
58
59 2.3 Wed Aug 18 01:26:47 CEST 2010
60 - make sure decoder doesn't change the decoding in the incremental
61 parser (testcase provided by Hendrik Schumacher).
62 - applied patch by DaTa for Data::Dumper support in json_xs.
63 - added -t dump support to json_xs, using Data::Dump.
64 - added -f eval support to json_xs.
65
66 2.29 Wed Mar 17 02:39:12 CET 2010
67 - fix a memory leak when callbacks set using filter_json_object
68 or filter_json_single_key_object were called (great testcase
69 by Eric Wilhelm).
70
71 2.28 Thu Mar 11 20:30:46 CET 2010
72 - implement our own atof function - perl's can be orders of
73 magnitudes slower than even the system one. on the positive
74 side, ours seems to be more exact in general than perl's.
75 (testcase provided by Tim Meadowcroft).
76 - clarify floating point conversion issues a bit.
77 - update jpsykes csrf article url.
78 - updated benchmark section - JSON::PP became much faster!
79
80 2.27 Thu Jan 7 07:35:08 CET 2010
81 - support relaxed option inside the incremental parser
82 (testcase provided by IKEGAMI via Makamaka).
83
84 2.26 Sat Oct 10 03:26:19 CEST 2009
85 - big integers could become truncated (based on patch
86 by Strobl Anton).
87 - output format change: indent now adds a final newline, which is
88 more expected and more true to the documentation.
89
90 2.25 Sat Aug 8 12:04:41 CEST 2009
91 - the perl debugger completely breaks lvalue subs - try to work
92 around the issue.
93 - ignore RMAGICAL hashes w.r.t. CANONICAL.
94 - try to work around a possible char signedness issue on aix.
95 - require common sense.
96
97 2.24 Sat May 30 08:25:45 CEST 2009
98 - the incremental parser did not update its parse offset
99 pointer correctly when parsing utf8-strings (nicely
100 debugged by Martin Evans).
101 - appending a non-utf8-string to the incremental parser
102 in utf8 mode failed to upgrade the string.
103 - wording of parse error messages has been improved.
104
105 2.232 Sun Feb 22 11:12:25 CET 2009
106 - use an exponential algorithm to extend strings, to
107 help platforms with bad or abysmal==windows memory
108 allocater performance, at the expense of some memory
109 wastage (use shrink to recover this extra memory).
110 (nicely analysed by Dmitry Karasik).
111
112 2.2311 Thu Feb 19 02:12:54 CET 2009
113 - add a section "JSON and ECMAscript" to explain some
114 incompatibilities between the two (problem was noted by
115 various people).
116 - add t/20_faihu.t.
117
118 2.231 Thu Nov 20 04:59:08 CET 2008
119 - work around 5.10.0 magic bugs where manipulating magic values
120 (such as $1) would permanently damage them as perl would
121 ignore the magicalness, by making a full copy of the string,
122 reported by Dmitry Karasik.
123 - work around spurious warnings under older perl 5.8's.
124
125 2.23 Mon Sep 29 05:08:29 CEST 2008
126 - fix a compilation problem when perl is not using char * as, well,
127 char *.
128 - use PL_hexdigit in favour of rolling our own.
129
130 2.2222 Sun Jul 20 18:49:00 CEST 2008
131 - same game again, broken 5.10 finds yet another assertion
132 failure, and the workaround causes additional runtime warnings.
133 Work around the next assertion AND the warning. 5.10 seriously
134 needs to adjust it's attitude against working code.
135
136 2.222 Sat Jul 19 06:15:34 CEST 2008
137 - you work around one -DDEBUGGING assertion bug in perl 5.10
138 just to hit the next one. work around this one, too.
139
140 2.22 Tue Jul 15 13:26:51 CEST 2008
141 - allow higher nesting levels in incremental parser.
142 - error out earlier in some cases in the incremental parser
143 (as suggested by Yuval Kogman).
144 - improve incr-parser test (Yuval Kogman).
145
146 2.21 Tue Jun 3 08:43:23 CEST 2008
147 - (hopefully) work around a perl 5.10 bug with -DDEBUGGING.
148 - remove the experimental status of the incremental parser interface.
149 - move =encoding around again, to avoid bugs with search.cpan.org.
150 when can we finally have utf-8 in pod???
151 - add ->incr_reset method.
152
153 2.2 Wed Apr 16 20:37:25 CEST 2008
154 - lifted the log2 rounding restriction of max_depth and max_size.
155 - make booleans mutable by creating a copy instead of handing out
156 the same scalar (reported by pasha sadri).
157 - added support for incremental json parsing (still EXPERIMENTAL).
158 - implemented and added a json_xs command line utility that can convert
159 from/to a number of serialisation formats - tell me if you need more.
160 - implement allow_unknown/get_allow_unknown methods.
161 - fixed documentation of max_depth w.r.t. higher and equal.
162 - moved down =encoding directive a bit, too much breaks if it's the first
163 pod directive :/.
164 - removed documentation section on other modules, it became somewhat
165 outdated and is nowadays mostly of historical interest.
166
167 2.1 Wed Mar 19 23:23:18 CET 2008
168 - update documentation here and there: add a large section
169 about utf8/latin1/ascii flags, add a security consideration
170 and extend and clarify the JSON and YAML section.
171 - medium speed enhancements when encoding/decoding non-ascii chars.
172 - minor speedup in number encoding case.
173 - extend and clarify the section on incompatibilities
174 between YAML and JSON.
175 - switch to static inline from just inline when using gcc.
176 - add =encoding utf-8 to the manpage, now that perl 5.10 supports it.
177 - fix some issues with UV to JSON conversion of unknown impact.
178 - published the yahoo locals search result used in benchmarks as the
179 original url changes so comparison is impossible.
180
181 2.01 Wed Dec 5 11:40:28 CET 2007
182 - INCOMPATIBLE API CHANGE: to_json and from_json have been
183 renamed to encode_json/decode_json for JSON.pm compatibility.
184 The old functions croak and might be replaced by JSON.pm
185 comaptible versions in some later release.
186
187 2.0 Tue Dec 4 11:30:46 CET 2007
188 - this is supposed to be the first version of JSON::XS
189 compatible with version 2.0+ of the JSON module.
190 Using the JSON module as frontend to JSON::XS should be
191 as fast as using JSON::XS directly, so consider using it
192 instead.
193 - added get_* methods for all "simple" options.
194 - make JSON::XS subclassable.
195
196 1.53 Tue Nov 13 23:58:33 CET 2007
197 - minor doc clarifications.
198 - fixed many doc typos (patch by Thomas L. Shinnick).
199
200 1.52 Mon Oct 15 03:22:06 CEST 2007
201 - remove =encoding pod directive again, it confuses too many pod
202 parsers :/.
203
204 1.51 Sat Oct 13 03:55:56 CEST 2007
205 - encode empty arrays/hashes in a compact way when pretty is enabled.
206 - apparently JSON::XS was used to find some bugs in the
207 JSON_checker testsuite, so add (the corrected) JSON_checker tests to
208 the testsuite.
209 - quite a bit of doc updates/extension.
210 - require 5.8.2, as this seems to be the first unicode-stable version.
211
212 1.5 Tue Aug 28 04:05:38 CEST 2007
213 - add support for tied hashes, based on ideas and testcase by
214 Marcus Holland-Moritz.
215 - implemented relaxed parsing mode where some extensions are being
216 accepted. generation is still JSON-only.
217
218 1.44 Wed Aug 22 01:02:44 CEST 2007
219 - very experimental process-emulation support, slowing everything down.
220 the horribly broken perl threads are still not supported - YMMV.
221
222 1.43 Thu Jul 26 13:26:37 CEST 2007
223 - convert big json numbers exclusively consisting of digits to NV
224 only when there is no loss of precision, otherwise to string.
225
226 1.42 Tue Jul 24 00:51:18 CEST 2007
227 - fix a crash caused by not handling missing array elements
228 (report and testcase by Jay Kuri).
229
230 1.41 Tue Jul 10 18:21:44 CEST 2007
231 - fix compilation with NDEBUG (assert side-effect),
232 affects convert_blessed only.
233 - fix a bug in decode filters calling ENTER; SAVETMPS;
234 one time too often.
235 - catch a typical error in TO_JSON methods.
236 - antique-ised XS.xs again to work with outdated
237 C compilers (windows...).
238
239 1.4 Mon Jul 2 10:06:30 CEST 2007
240 - add convert_blessed setting.
241 - encode did not catch all blessed objects, encoding their
242 contents in most cases. This has been fixed by introducing
243 the allow_blessed setting.
244 - added filter_json_object and filter_json_single_key_object
245 settings that specify a callback to be called when
246 all/specific json objects are encountered.
247 - assume that most object keys are simple ascii words and
248 optimise this case, penalising the general case. This can
249 speed up decoding by 30% in typical cases and gives
250 a smaller and faster perl hash.
251 - implemented simpleminded, optional resource size checking
252 in decode_json.
253 - remove objToJson/jsonToObj aliases, as the next version
254 of JSON will not have them either.
255 - bit the bullet and converted the very simple json object
256 into a more complex one.
257 - work around a bug where perl wrongly claims an integer
258 is not an integer.
259 - unbundle JSON::XS::Boolean into own pm file so Storable
260 and similar modules can resolve the overloading when thawing.
261
262 1.3 Sun Jun 24 01:55:02 CEST 2007
263 - make JSON::XS::true and false special overloaded objects
264 and return those instead of 1 and 0 for those json atoms
265 (JSON::PP compatibility is NOT achieved yet).
266 - add JSON::XS::is_bool predicate to test for those special
267 values.
268 - add a reference to
269 http://jpsykes.com/47/practical-csrf-and-json-security.
270 - removed require 5.8.8 again, it is just not very expert-friendly.
271 Also try to be more compatible with slightly older versions,
272 which are not recommended (because they are buggy).
273
274 1.24 Mon Jun 11 05:40:49 CEST 2007
275 - added informative section on JSON-as-YAML.
276 - get rid of some c99-isms again.
277 - localise dec->cur in decode_str, speeding up
278 string decoding considerably (>15% on my amd64 + gcc).
279 - increased SHORT_STRING_LEN to 16kb: stack space is
280 usually plenty, and this actually saves memory
281 when !shrinking as short strings will fit perfectly.
282
283 1.23 Wed Jun 6 20:13:06 CEST 2007
284 - greatly improved small integer encoding and decoding speed.
285 - implement a number of µ-optimisations.
286 - updated benchmarks.
287
288 1.22 Thu May 24 00:07:25 CEST 2007
289 - require 5.8.8 explicitly as older perls do not seem to offer
290 the required macros.
291 - possibly made it compile on so-called C compilers by microsoft.
292
293 1.21 Wed May 9 18:40:32 CEST 2007
294 - character offset reported for trailing garbage was random.
295
296 1.2 Wed May 9 18:35:01 CEST 2007
297 - decode did not work with magical scalars (doh!).
298 - added latin1 flag to produce JSON texts in the latin1 subset
299 of unicode.
300 - flag trailing garbage as error.
301 - new decode_prefix method that returns the number
302 of characters consumed by a decode.
303 - max octets/char in perls UTF-X is actually 13, not 11,
304 as pointed out by Glenn Linderman.
305 - fixed typoe reported by YAMASHINA Hio.
306
307 1.11 Mon Apr 9 07:05:49 CEST 2007
308 - properly 0-terminate sv's returned by encode to help
309 C libraries that expect that 0 to be there.
310 - partially "port" JSON from C to microsofts fucking broken
311 pseudo-C. They should be burned to the ground for pissing
312 on standards. And I should be stoned for even trying to
313 support this filthy excuse for a c compiler.
314
315 1.1 Wed Apr 4 01:45:00 CEST 2007
316 - clarify documentation (pointed out by Quinn Weaver).
317 - decode_utf8 sometimes did not correctly flag errors,
318 leading to segfaults.
319 - further reduced default nesting depth to 512 due to the test
320 failure by that anonymous "chris" whose e-mail address seems
321 to be impossible to get. Tests on other freebsd systems indicate
322 that this is likely a problem in his/her configuration and not this
323 module.
324 - renamed json => JSON in error messages.
325 - corrected the character offset in some error messages.
326
327 1.01 Sat Mar 31 16:15:40 CEST 2007
328 - do not segfault when from_json/decode gets passed
329 a non-string object (reported by Florian Ragwitz).
330 This has no effect on normal operation.
331
332 1.0 Thu Mar 29 04:43:34 CEST 2007
333 - the long awaited (by me) 1.0 version.
334 - add \0 (JSON::XS::false) and \1 (JSON::XS::true) mappings to JSON
335 true and false.
336 - add some more notes to shrink, as suggested by Alex Efros.
337 - improve testsuite.
338 - halve the default nesting depth limit, to hopefully make it
339 work on Freebsd (unfortunately, the cpan tester did not
340 send me his report, so I cannot ask about the stack limit on fbsd).
341
342 0.8 Mon Mar 26 00:10:48 CEST 2007
343 - fix a memleak when decoding hashes.
344 - export jsonToBj and objToJson as aliases
345 to to_json and from_json, to reduce incompatibilities
346 between JSON/JSON::PC and JSON::XS. (experimental).
347 - implement a maximum nesting depth for both en- and de-coding.
348 - added a security considerations sections.
349
350 0.7 Sun Mar 25 01:46:30 CET 2007
351 - code cleanup.
352 - fix a memory overflow bug when indenting.
353 - pretty-printing now up to 15% faster.
354 - improve decoding speed of strings by
355 up to 50% by specialcasing short strings.
356 - further decoding speedups for strings using
357 lots of \u escapes.
358 - improve utf8 decoding speed for U+80 .. U+7FF.
359
360 0.5 Sat Mar 24 20:41:51 CET 2007
361 - added the UTF-16 encoding example hinted at in previous
362 versions.
363 - minor documentation fixes.
364 - fix a bug in and optimise canonicalising fastpath
365 (reported by Craig Manley).
366 - remove a subtest that breaks with bleadperl (reported
367 by Andreas König).
368
369 0.31 Sat Mar 24 02:14:34 CET 2007
370 - documentation updates.
371 - do some casting to hopefully fix Andreas' problem.
372 - nuke bogus json rpc stuff.
373
374 0.3 Fri Mar 23 19:33:21 CET 2007
375 - remove spurious PApp::Util reference (John McNamara).
376 - adapted lots of tests from other json modules
377 (idea by Chris Carline).
378 - documented mapping from json to perl and vice versa.
379 - improved the documentation by adding more examples.
380 - added short escaping forms, reducing the created
381 json texts a bit.
382 - added shrink flag.
383 - when flag methods are called without enable argument
384 they will by default enable their flag.
385 - considerably improved string encoding speed (at least
386 with gcc 4).
387 - added a test that covers lots of different characters.
388 - clarified some error messages.
389 - error messages now use correct character offset
390 with F_UTF8.
391 - improve the "no bytes" and "no warnings" hacks in
392 case the called functions do... stuff.
393 - croak when encoding to ascii and an out-of-range
394 (non-unicode) codepoint is encountered.
395
396 0.2 Fri Mar 23 00:23:34 CET 2007
397 - the "could not sleep without debugging release".
398 it should basically work now, with many bugs as
399 no production tests have been run yet.
400 - added more testcases.
401 - the expected shitload of bugfixes.
402 - handle utf8 flag correctly in decode.
403 - fix segfault in decoder.
404 - utf8n_to_uvuni sets retlen to -1, but retlen is an
405 unsigned types (argh).
406 - fix decoding of utf-8 strings.
407 - improved error diagnostics.
408 - fix decoding of 'null'.
409 - fix parsing of empty array/hashes
410 - silence warnings when we prepare the croak message.
411
412 0.1 Thu Mar 22 22:13:43 CET 2007
413 - first release, very untested, basically just to claim
414 the namespace.
415
416 0.01 Thu Mar 22 06:08:12 CET 2007
417 - original version; cloned from Convert-Scalar
418