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Revision: 1.166
Committed: Mon Nov 24 18:42:51 2014 UTC (9 years, 5 months ago) by root
Branch: MAIN
Changes since 1.165: +3 -0 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 - allow literal tabs in strings in relaxed mode (patch by
11 lubo.rintel@gooddata.com).
12
13 3.01 Tue Oct 29 16:55:15 CET 2013
14 - backport to perls < 5.18 (reported by Paul Howarth).
15
16 3.0 Tue Oct 29 01:35:37 CET 2013
17 - implemented an object tagging extension (using the
18 Types::Serialiser serialisation protocol).
19 - reworked the documentation regarding object serialisation,
20 add a new OBJECT SERIALISATION section that explains th
21 whole process.
22 - new setting: allow_tags.
23 - switch to Types::Serialiser booleans.
24 - remove to_json/from_json.
25 - other minor improvements to the documentation.
26
27 2.34 Thu May 23 11:30:34 CEST 2013
28 - work around bugs in perl 5.18 breaking more than 100
29 widely used modules, without a fix in sight because
30 p5pers don't care about CPAN anymore.
31 - when canonicalising, only allocate up to 64 hash key
32 pointers on the stack. for larger hashes, use the heap,
33 to avoid using too much stackspace.
34 - discuss the problem with setlocale (reported by a few victims).
35
36 2.33 Wed Aug 1 21:03:52 CEST 2012
37 - internal encode/decode XS wrappers did not expect stack
38 moves caused by callbacks (analyzed and testcase by Jesse Luehrs).
39 - add bencode as to/from option in bin/json_xs.
40 - add -e option to json_xs, and none and string in/out formats.
41
42 2.32 Thu Aug 11 19:06:38 CEST 2011
43 - fix a bug in the initial whitespace accumulation.
44
45 2.31 Wed Jul 27 17:53:05 CEST 2011
46 - don't accumulate initial whitespace in the incremental buffer
47 (this can be useful to allow whitespace-keepalive on a tcp
48 connection without triggering the max_size limit).
49 - properly croak on some invalid inputs that are not strings
50 (e.g. undef) when trying to decode a json text (reported
51 and analyzed by Goro Fuji).
52
53 2.3 Wed Aug 18 01:26:47 CEST 2010
54 - make sure decoder doesn't change the decoding in the incremental
55 parser (testcase provided by Hendrik Schumacher).
56 - applied patch by DaTa for Data::Dumper support in json_xs.
57 - added -t dump support to json_xs, using Data::Dump.
58 - added -f eval support to json_xs.
59
60 2.29 Wed Mar 17 02:39:12 CET 2010
61 - fix a memory leak when callbacks set using filter_json_object
62 or filter_json_single_key_object were called (great testcase
63 by Eric Wilhelm).
64
65 2.28 Thu Mar 11 20:30:46 CET 2010
66 - implement our own atof function - perl's can be orders of
67 magnitudes slower than even the system one. on the positive
68 side, ours seems to be more exact in general than perl's.
69 (testcase provided by Tim Meadowcroft).
70 - clarify floating point conversion issues a bit.
71 - update jpsykes csrf article url.
72 - updated benchmark section - JSON::PP became much faster!
73
74 2.27 Thu Jan 7 07:35:08 CET 2010
75 - support relaxed option inside the incremental parser
76 (testcase provided by IKEGAMI via Makamaka).
77
78 2.26 Sat Oct 10 03:26:19 CEST 2009
79 - big integers could become truncated (based on patch
80 by Strobl Anton).
81 - output format change: indent now adds a final newline, which is
82 more expected and more true to the documentation.
83
84 2.25 Sat Aug 8 12:04:41 CEST 2009
85 - the perl debugger completely breaks lvalue subs - try to work
86 around the issue.
87 - ignore RMAGICAL hashes w.r.t. CANONICAL.
88 - try to work around a possible char signedness issue on aix.
89 - require common sense.
90
91 2.24 Sat May 30 08:25:45 CEST 2009
92 - the incremental parser did not update its parse offset
93 pointer correctly when parsing utf8-strings (nicely
94 debugged by Martin Evans).
95 - appending a non-utf8-string to the incremental parser
96 in utf8 mode failed to upgrade the string.
97 - wording of parse error messages has been improved.
98
99 2.232 Sun Feb 22 11:12:25 CET 2009
100 - use an exponential algorithm to extend strings, to
101 help platforms with bad or abysmal==windows memory
102 allocater performance, at the expense of some memory
103 wastage (use shrink to recover this extra memory).
104 (nicely analysed by Dmitry Karasik).
105
106 2.2311 Thu Feb 19 02:12:54 CET 2009
107 - add a section "JSON and ECMAscript" to explain some
108 incompatibilities between the two (problem was noted by
109 various people).
110 - add t/20_faihu.t.
111
112 2.231 Thu Nov 20 04:59:08 CET 2008
113 - work around 5.10.0 magic bugs where manipulating magic values
114 (such as $1) would permanently damage them as perl would
115 ignore the magicalness, by making a full copy of the string,
116 reported by Dmitry Karasik.
117 - work around spurious warnings under older perl 5.8's.
118
119 2.23 Mon Sep 29 05:08:29 CEST 2008
120 - fix a compilation problem when perl is not using char * as, well,
121 char *.
122 - use PL_hexdigit in favour of rolling our own.
123
124 2.2222 Sun Jul 20 18:49:00 CEST 2008
125 - same game again, broken 5.10 finds yet another assertion
126 failure, and the workaround causes additional runtime warnings.
127 Work around the next assertion AND the warning. 5.10 seriously
128 needs to adjust it's attitude against working code.
129
130 2.222 Sat Jul 19 06:15:34 CEST 2008
131 - you work around one -DDEBUGGING assertion bug in perl 5.10
132 just to hit the next one. work around this one, too.
133
134 2.22 Tue Jul 15 13:26:51 CEST 2008
135 - allow higher nesting levels in incremental parser.
136 - error out earlier in some cases in the incremental parser
137 (as suggested by Yuval Kogman).
138 - improve incr-parser test (Yuval Kogman).
139
140 2.21 Tue Jun 3 08:43:23 CEST 2008
141 - (hopefully) work around a perl 5.10 bug with -DDEBUGGING.
142 - remove the experimental status of the incremental parser interface.
143 - move =encoding around again, to avoid bugs with search.cpan.org.
144 when can we finally have utf-8 in pod???
145 - add ->incr_reset method.
146
147 2.2 Wed Apr 16 20:37:25 CEST 2008
148 - lifted the log2 rounding restriction of max_depth and max_size.
149 - make booleans mutable by creating a copy instead of handing out
150 the same scalar (reported by pasha sadri).
151 - added support for incremental json parsing (still EXPERIMENTAL).
152 - implemented and added a json_xs command line utility that can convert
153 from/to a number of serialisation formats - tell me if you need more.
154 - implement allow_unknown/get_allow_unknown methods.
155 - fixed documentation of max_depth w.r.t. higher and equal.
156 - moved down =encoding directive a bit, too much breaks if it's the first
157 pod directive :/.
158 - removed documentation section on other modules, it became somewhat
159 outdated and is nowadays mostly of historical interest.
160
161 2.1 Wed Mar 19 23:23:18 CET 2008
162 - update documentation here and there: add a large section
163 about utf8/latin1/ascii flags, add a security consideration
164 and extend and clarify the JSON and YAML section.
165 - medium speed enhancements when encoding/decoding non-ascii chars.
166 - minor speedup in number encoding case.
167 - extend and clarify the section on incompatibilities
168 between YAML and JSON.
169 - switch to static inline from just inline when using gcc.
170 - add =encoding utf-8 to the manpage, now that perl 5.10 supports it.
171 - fix some issues with UV to JSON conversion of unknown impact.
172 - published the yahoo locals search result used in benchmarks as the
173 original url changes so comparison is impossible.
174
175 2.01 Wed Dec 5 11:40:28 CET 2007
176 - INCOMPATIBLE API CHANGE: to_json and from_json have been
177 renamed to encode_json/decode_json for JSON.pm compatibility.
178 The old functions croak and might be replaced by JSON.pm
179 comaptible versions in some later release.
180
181 2.0 Tue Dec 4 11:30:46 CET 2007
182 - this is supposed to be the first version of JSON::XS
183 compatible with version 2.0+ of the JSON module.
184 Using the JSON module as frontend to JSON::XS should be
185 as fast as using JSON::XS directly, so consider using it
186 instead.
187 - added get_* methods for all "simple" options.
188 - make JSON::XS subclassable.
189
190 1.53 Tue Nov 13 23:58:33 CET 2007
191 - minor doc clarifications.
192 - fixed many doc typos (patch by Thomas L. Shinnick).
193
194 1.52 Mon Oct 15 03:22:06 CEST 2007
195 - remove =encoding pod directive again, it confuses too many pod
196 parsers :/.
197
198 1.51 Sat Oct 13 03:55:56 CEST 2007
199 - encode empty arrays/hashes in a compact way when pretty is enabled.
200 - apparently JSON::XS was used to find some bugs in the
201 JSON_checker testsuite, so add (the corrected) JSON_checker tests to
202 the testsuite.
203 - quite a bit of doc updates/extension.
204 - require 5.8.2, as this seems to be the first unicode-stable version.
205
206 1.5 Tue Aug 28 04:05:38 CEST 2007
207 - add support for tied hashes, based on ideas and testcase by
208 Marcus Holland-Moritz.
209 - implemented relaxed parsing mode where some extensions are being
210 accepted. generation is still JSON-only.
211
212 1.44 Wed Aug 22 01:02:44 CEST 2007
213 - very experimental process-emulation support, slowing everything down.
214 the horribly broken perl threads are still not supported - YMMV.
215
216 1.43 Thu Jul 26 13:26:37 CEST 2007
217 - convert big json numbers exclusively consisting of digits to NV
218 only when there is no loss of precision, otherwise to string.
219
220 1.42 Tue Jul 24 00:51:18 CEST 2007
221 - fix a crash caused by not handling missing array elements
222 (report and testcase by Jay Kuri).
223
224 1.41 Tue Jul 10 18:21:44 CEST 2007
225 - fix compilation with NDEBUG (assert side-effect),
226 affects convert_blessed only.
227 - fix a bug in decode filters calling ENTER; SAVETMPS;
228 one time too often.
229 - catch a typical error in TO_JSON methods.
230 - antique-ised XS.xs again to work with outdated
231 C compilers (windows...).
232
233 1.4 Mon Jul 2 10:06:30 CEST 2007
234 - add convert_blessed setting.
235 - encode did not catch all blessed objects, encoding their
236 contents in most cases. This has been fixed by introducing
237 the allow_blessed setting.
238 - added filter_json_object and filter_json_single_key_object
239 settings that specify a callback to be called when
240 all/specific json objects are encountered.
241 - assume that most object keys are simple ascii words and
242 optimise this case, penalising the general case. This can
243 speed up decoding by 30% in typical cases and gives
244 a smaller and faster perl hash.
245 - implemented simpleminded, optional resource size checking
246 in decode_json.
247 - remove objToJson/jsonToObj aliases, as the next version
248 of JSON will not have them either.
249 - bit the bullet and converted the very simple json object
250 into a more complex one.
251 - work around a bug where perl wrongly claims an integer
252 is not an integer.
253 - unbundle JSON::XS::Boolean into own pm file so Storable
254 and similar modules can resolve the overloading when thawing.
255
256 1.3 Sun Jun 24 01:55:02 CEST 2007
257 - make JSON::XS::true and false special overloaded objects
258 and return those instead of 1 and 0 for those json atoms
259 (JSON::PP compatibility is NOT achieved yet).
260 - add JSON::XS::is_bool predicate to test for those special
261 values.
262 - add a reference to
263 http://jpsykes.com/47/practical-csrf-and-json-security.
264 - removed require 5.8.8 again, it is just not very expert-friendly.
265 Also try to be more compatible with slightly older versions,
266 which are not recommended (because they are buggy).
267
268 1.24 Mon Jun 11 05:40:49 CEST 2007
269 - added informative section on JSON-as-YAML.
270 - get rid of some c99-isms again.
271 - localise dec->cur in decode_str, speeding up
272 string decoding considerably (>15% on my amd64 + gcc).
273 - increased SHORT_STRING_LEN to 16kb: stack space is
274 usually plenty, and this actually saves memory
275 when !shrinking as short strings will fit perfectly.
276
277 1.23 Wed Jun 6 20:13:06 CEST 2007
278 - greatly improved small integer encoding and decoding speed.
279 - implement a number of µ-optimisations.
280 - updated benchmarks.
281
282 1.22 Thu May 24 00:07:25 CEST 2007
283 - require 5.8.8 explicitly as older perls do not seem to offer
284 the required macros.
285 - possibly made it compile on so-called C compilers by microsoft.
286
287 1.21 Wed May 9 18:40:32 CEST 2007
288 - character offset reported for trailing garbage was random.
289
290 1.2 Wed May 9 18:35:01 CEST 2007
291 - decode did not work with magical scalars (doh!).
292 - added latin1 flag to produce JSON texts in the latin1 subset
293 of unicode.
294 - flag trailing garbage as error.
295 - new decode_prefix method that returns the number
296 of characters consumed by a decode.
297 - max octets/char in perls UTF-X is actually 13, not 11,
298 as pointed out by Glenn Linderman.
299 - fixed typoe reported by YAMASHINA Hio.
300
301 1.11 Mon Apr 9 07:05:49 CEST 2007
302 - properly 0-terminate sv's returned by encode to help
303 C libraries that expect that 0 to be there.
304 - partially "port" JSON from C to microsofts fucking broken
305 pseudo-C. They should be burned to the ground for pissing
306 on standards. And I should be stoned for even trying to
307 support this filthy excuse for a c compiler.
308
309 1.1 Wed Apr 4 01:45:00 CEST 2007
310 - clarify documentation (pointed out by Quinn Weaver).
311 - decode_utf8 sometimes did not correctly flag errors,
312 leading to segfaults.
313 - further reduced default nesting depth to 512 due to the test
314 failure by that anonymous "chris" whose e-mail address seems
315 to be impossible to get. Tests on other freebsd systems indicate
316 that this is likely a problem in his/her configuration and not this
317 module.
318 - renamed json => JSON in error messages.
319 - corrected the character offset in some error messages.
320
321 1.01 Sat Mar 31 16:15:40 CEST 2007
322 - do not segfault when from_json/decode gets passed
323 a non-string object (reported by Florian Ragwitz).
324 This has no effect on normal operation.
325
326 1.0 Thu Mar 29 04:43:34 CEST 2007
327 - the long awaited (by me) 1.0 version.
328 - add \0 (JSON::XS::false) and \1 (JSON::XS::true) mappings to JSON
329 true and false.
330 - add some more notes to shrink, as suggested by Alex Efros.
331 - improve testsuite.
332 - halve the default nesting depth limit, to hopefully make it
333 work on Freebsd (unfortunately, the cpan tester did not
334 send me his report, so I cannot ask about the stack limit on fbsd).
335
336 0.8 Mon Mar 26 00:10:48 CEST 2007
337 - fix a memleak when decoding hashes.
338 - export jsonToBj and objToJson as aliases
339 to to_json and from_json, to reduce incompatibilities
340 between JSON/JSON::PC and JSON::XS. (experimental).
341 - implement a maximum nesting depth for both en- and de-coding.
342 - added a security considerations sections.
343
344 0.7 Sun Mar 25 01:46:30 CET 2007
345 - code cleanup.
346 - fix a memory overflow bug when indenting.
347 - pretty-printing now up to 15% faster.
348 - improve decoding speed of strings by
349 up to 50% by specialcasing short strings.
350 - further decoding speedups for strings using
351 lots of \u escapes.
352 - improve utf8 decoding speed for U+80 .. U+7FF.
353
354 0.5 Sat Mar 24 20:41:51 CET 2007
355 - added the UTF-16 encoding example hinted at in previous
356 versions.
357 - minor documentation fixes.
358 - fix a bug in and optimise canonicalising fastpath
359 (reported by Craig Manley).
360 - remove a subtest that breaks with bleadperl (reported
361 by Andreas König).
362
363 0.31 Sat Mar 24 02:14:34 CET 2007
364 - documentation updates.
365 - do some casting to hopefully fix Andreas' problem.
366 - nuke bogus json rpc stuff.
367
368 0.3 Fri Mar 23 19:33:21 CET 2007
369 - remove spurious PApp::Util reference (John McNamara).
370 - adapted lots of tests from other json modules
371 (idea by Chris Carline).
372 - documented mapping from json to perl and vice versa.
373 - improved the documentation by adding more examples.
374 - added short escaping forms, reducing the created
375 json texts a bit.
376 - added shrink flag.
377 - when flag methods are called without enable argument
378 they will by default enable their flag.
379 - considerably improved string encoding speed (at least
380 with gcc 4).
381 - added a test that covers lots of different characters.
382 - clarified some error messages.
383 - error messages now use correct character offset
384 with F_UTF8.
385 - improve the "no bytes" and "no warnings" hacks in
386 case the called functions do... stuff.
387 - croak when encoding to ascii and an out-of-range
388 (non-unicode) codepoint is encountered.
389
390 0.2 Fri Mar 23 00:23:34 CET 2007
391 - the "could not sleep without debugging release".
392 it should basically work now, with many bugs as
393 no production tests have been run yet.
394 - added more testcases.
395 - the expected shitload of bugfixes.
396 - handle utf8 flag correctly in decode.
397 - fix segfault in decoder.
398 - utf8n_to_uvuni sets retlen to -1, but retlen is an
399 unsigned types (argh).
400 - fix decoding of utf-8 strings.
401 - improved error diagnostics.
402 - fix decoding of 'null'.
403 - fix parsing of empty array/hashes
404 - silence warnings when we prepare the croak message.
405
406 0.1 Thu Mar 22 22:13:43 CET 2007
407 - first release, very untested, basically just to claim
408 the namespace.
409
410 0.01 Thu Mar 22 06:08:12 CET 2007
411 - original version; cloned from Convert-Scalar
412