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Revision: 1.148
Committed: Tue Mar 8 10:18:50 2011 UTC (13 years, 2 months ago) by root
Branch: MAIN
Changes since 1.147: +4 -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
5 - properly croak on some invalid inputs that are not strings
6 (e.g. undef) when trying to decode a json text (reported
7 and analyzed by Goro Fuji).
8
9 2.3 Wed Aug 18 01:26:47 CEST 2010
10 - make sure decoder doesn't change the decoding in the incremental
11 parser (testcase provided by Hendrik Schumacher).
12 - applied patch by DaTa for Data::Dumper support in json_xs.
13 - added -t dump support to json_xs, using Data::Dump.
14 - added -f eval support to json_xs.
15
16 2.29 Wed Mar 17 02:39:12 CET 2010
17 - fix a memory leak when callbacks set using filter_json_object
18 or filter_json_single_key_object were called (great testcase
19 by Eric Wilhelm).
20
21 2.28 Thu Mar 11 20:30:46 CET 2010
22 - implement our own atof function - perl's can be orders of
23 magnitudes slower than even the system one. on the positive
24 side, ours seems to be more exact in general than perl's.
25 (testcase provided by Tim Meadowcroft).
26 - clarify floating point conversion issues a bit.
27 - update jpsykes csrf article url.
28 - updated benchmark section - JSON::PP became much faster!
29
30 2.27 Thu Jan 7 07:35:08 CET 2010
31 - support relaxed option inside the incremental parser
32 (testcase provided by IKEGAMI via Makamaka).
33
34 2.26 Sat Oct 10 03:26:19 CEST 2009
35 - big integers could become truncated (based on patch
36 by Strobl Anton).
37 - output format change: indent now adds a final newline, which is
38 more expected and more true to the documentation.
39
40 2.25 Sat Aug 8 12:04:41 CEST 2009
41 - the perl debugger completely breaks lvalue subs - try to work
42 around the issue.
43 - ignore RMAGICAL hashes w.r.t. CANONICAL.
44 - try to work around a possible char signedness issue on aix.
45 - require common sense.
46
47 2.24 Sat May 30 08:25:45 CEST 2009
48 - the incremental parser did not update its parse offset
49 pointer correctly when parsing utf8-strings (nicely
50 debugged by Martin Evans).
51 - appending a non-utf8-string to the incremental parser
52 in utf8 mode failed to upgrade the string.
53 - wording of parse error messages has been improved.
54
55 2.232 Sun Feb 22 11:12:25 CET 2009
56 - use an exponential algorithm to extend strings, to
57 help platforms with bad or abysmal==windows memory
58 allocater performance, at the expense of some memory
59 wastage (use shrink to recover this extra memory).
60 (nicely analysed by Dmitry Karasik).
61
62 2.2311 Thu Feb 19 02:12:54 CET 2009
63 - add a section "JSON and ECMAscript" to explain some
64 incompatibilities between the two (problem was noted by
65 various people).
66 - add t/20_faihu.t.
67
68 2.231 Thu Nov 20 04:59:08 CET 2008
69 - work around 5.10.0 magic bugs where manipulating magic values
70 (such as $1) would permanently damage them as perl would
71 ignore the magicalness, by making a full copy of the string,
72 reported by Dmitry Karasik.
73 - work around spurious warnings under older perl 5.8's.
74
75 2.23 Mon Sep 29 05:08:29 CEST 2008
76 - fix a compilation problem when perl is not using char * as, well,
77 char *.
78 - use PL_hexdigit in favour of rolling our own.
79
80 2.2222 Sun Jul 20 18:49:00 CEST 2008
81 - same game again, broken 5.10 finds yet another assertion
82 failure, and the workaround causes additional runtime warnings.
83 Work around the next assertion AND the warning. 5.10 seriously
84 needs to adjust it's attitude against working code.
85
86 2.222 Sat Jul 19 06:15:34 CEST 2008
87 - you work around one -DDEBUGGING assertion bug in perl 5.10
88 just to hit the next one. work around this one, too.
89
90 2.22 Tue Jul 15 13:26:51 CEST 2008
91 - allow higher nesting levels in incremental parser.
92 - error out earlier in some cases in the incremental parser
93 (as suggested by Yuval Kogman).
94 - improve incr-parser test (Yuval Kogman).
95
96 2.21 Tue Jun 3 08:43:23 CEST 2008
97 - (hopefully) work around a perl 5.10 bug with -DDEBUGGING.
98 - remove the experimental status of the incremental parser interface.
99 - move =encoding around again, to avoid bugs with search.cpan.org.
100 when can we finally have utf-8 in pod???
101 - add ->incr_reset method.
102
103 2.2 Wed Apr 16 20:37:25 CEST 2008
104 - lifted the log2 rounding restriction of max_depth and max_size.
105 - make booleans mutable by creating a copy instead of handing out
106 the same scalar (reported by pasha sadri).
107 - added support for incremental json parsing (still EXPERIMENTAL).
108 - implemented and added a json_xs command line utility that can convert
109 from/to a number of serialisation formats - tell me if you need more.
110 - implement allow_unknown/get_allow_unknown methods.
111 - fixed documentation of max_depth w.r.t. higher and equal.
112 - moved down =encoding directive a bit, too much breaks if it's the first
113 pod directive :/.
114 - removed documentation section on other modules, it became somewhat
115 outdated and is nowadays mostly of historical interest.
116
117 2.1 Wed Mar 19 23:23:18 CET 2008
118 - update documentation here and there: add a large section
119 about utf8/latin1/ascii flags, add a security consideration
120 and extend and clarify the JSON and YAML section.
121 - medium speed enhancements when encoding/decoding non-ascii chars.
122 - minor speedup in number encoding case.
123 - extend and clarify the section on incompatibilities
124 between YAML and JSON.
125 - switch to static inline from just inline when using gcc.
126 - add =encoding utf-8 to the manpage, now that perl 5.10 supports it.
127 - fix some issues with UV to JSON conversion of unknown impact.
128 - published the yahoo locals search result used in benchmarks as the
129 original url changes so comparison is impossible.
130
131 2.01 Wed Dec 5 11:40:28 CET 2007
132 - INCOMPATIBLE API CHANGE: to_json and from_json have been
133 renamed to encode_json/decode_json for JSON.pm compatibility.
134 The old functions croak and might be replaced by JSON.pm
135 comaptible versions in some later release.
136
137 2.0 Tue Dec 4 11:30:46 CET 2007
138 - this is supposed to be the first version of JSON::XS
139 compatible with version 2.0+ of the JSON module.
140 Using the JSON module as frontend to JSON::XS should be
141 as fast as using JSON::XS directly, so consider using it
142 instead.
143 - added get_* methods for all "simple" options.
144 - make JSON::XS subclassable.
145
146 1.53 Tue Nov 13 23:58:33 CET 2007
147 - minor doc clarifications.
148 - fixed many doc typos (patch by Thomas L. Shinnick).
149
150 1.52 Mon Oct 15 03:22:06 CEST 2007
151 - remove =encoding pod directive again, it confuses too many pod
152 parsers :/.
153
154 1.51 Sat Oct 13 03:55:56 CEST 2007
155 - encode empty arrays/hashes in a compact way when pretty is enabled.
156 - apparently JSON::XS was used to find some bugs in the
157 JSON_checker testsuite, so add (the corrected) JSON_checker tests to
158 the testsuite.
159 - quite a bit of doc updates/extension.
160 - require 5.8.2, as this seems to be the first unicode-stable version.
161
162 1.5 Tue Aug 28 04:05:38 CEST 2007
163 - add support for tied hashes, based on ideas and testcase by
164 Marcus Holland-Moritz.
165 - implemented relaxed parsing mode where some extensions are being
166 accepted. generation is still JSON-only.
167
168 1.44 Wed Aug 22 01:02:44 CEST 2007
169 - very experimental process-emulation support, slowing everything down.
170 the horribly broken perl threads are still not supported - YMMV.
171
172 1.43 Thu Jul 26 13:26:37 CEST 2007
173 - convert big json numbers exclusively consisting of digits to NV
174 only when there is no loss of precision, otherwise to string.
175
176 1.42 Tue Jul 24 00:51:18 CEST 2007
177 - fix a crash caused by not handling missing array elements
178 (report and testcase by Jay Kuri).
179
180 1.41 Tue Jul 10 18:21:44 CEST 2007
181 - fix compilation with NDEBUG (assert side-effect),
182 affects convert_blessed only.
183 - fix a bug in decode filters calling ENTER; SAVETMPS;
184 one time too often.
185 - catch a typical error in TO_JSON methods.
186 - antique-ised XS.xs again to work with outdated
187 C compilers (windows...).
188
189 1.4 Mon Jul 2 10:06:30 CEST 2007
190 - add convert_blessed setting.
191 - encode did not catch all blessed objects, encoding their
192 contents in most cases. This has been fixed by introducing
193 the allow_blessed setting.
194 - added filter_json_object and filter_json_single_key_object
195 settings that specify a callback to be called when
196 all/specific json objects are encountered.
197 - assume that most object keys are simple ascii words and
198 optimise this case, penalising the general case. This can
199 speed up decoding by 30% in typical cases and gives
200 a smaller and faster perl hash.
201 - implemented simpleminded, optional resource size checking
202 in decode_json.
203 - remove objToJson/jsonToObj aliases, as the next version
204 of JSON will not have them either.
205 - bit the bullet and converted the very simple json object
206 into a more complex one.
207 - work around a bug where perl wrongly claims an integer
208 is not an integer.
209 - unbundle JSON::XS::Boolean into own pm file so Storable
210 and similar modules can resolve the overloading when thawing.
211
212 1.3 Sun Jun 24 01:55:02 CEST 2007
213 - make JSON::XS::true and false special overloaded objects
214 and return those instead of 1 and 0 for those json atoms
215 (JSON::PP compatibility is NOT achieved yet).
216 - add JSON::XS::is_bool predicate to test for those special
217 values.
218 - add a reference to
219 http://jpsykes.com/47/practical-csrf-and-json-security.
220 - removed require 5.8.8 again, it is just not very expert-friendly.
221 Also try to be more compatible with slightly older versions,
222 which are not recommended (because they are buggy).
223
224 1.24 Mon Jun 11 05:40:49 CEST 2007
225 - added informative section on JSON-as-YAML.
226 - get rid of some c99-isms again.
227 - localise dec->cur in decode_str, speeding up
228 string decoding considerably (>15% on my amd64 + gcc).
229 - increased SHORT_STRING_LEN to 16kb: stack space is
230 usually plenty, and this actually saves memory
231 when !shrinking as short strings will fit perfectly.
232
233 1.23 Wed Jun 6 20:13:06 CEST 2007
234 - greatly improved small integer encoding and decoding speed.
235 - implement a number of µ-optimisations.
236 - updated benchmarks.
237
238 1.22 Thu May 24 00:07:25 CEST 2007
239 - require 5.8.8 explicitly as older perls do not seem to offer
240 the required macros.
241 - possibly made it compile on so-called C compilers by microsoft.
242
243 1.21 Wed May 9 18:40:32 CEST 2007
244 - character offset reported for trailing garbage was random.
245
246 1.2 Wed May 9 18:35:01 CEST 2007
247 - decode did not work with magical scalars (doh!).
248 - added latin1 flag to produce JSON texts in the latin1 subset
249 of unicode.
250 - flag trailing garbage as error.
251 - new decode_prefix method that returns the number
252 of characters consumed by a decode.
253 - max octets/char in perls UTF-X is actually 13, not 11,
254 as pointed out by Glenn Linderman.
255 - fixed typoe reported by YAMASHINA Hio.
256
257 1.11 Mon Apr 9 07:05:49 CEST 2007
258 - properly 0-terminate sv's returned by encode to help
259 C libraries that expect that 0 to be there.
260 - partially "port" JSON from C to microsofts fucking broken
261 pseudo-C. They should be burned to the ground for pissing
262 on standards. And I should be stoned for even trying to
263 support this filthy excuse for a c compiler.
264
265 1.1 Wed Apr 4 01:45:00 CEST 2007
266 - clarify documentation (pointed out by Quinn Weaver).
267 - decode_utf8 sometimes did not correctly flag errors,
268 leading to segfaults.
269 - further reduced default nesting depth to 512 due to the test
270 failure by that anonymous "chris" whose e-mail address seems
271 to be impossible to get. Tests on other freebsd systems indicate
272 that this is likely a problem in his/her configuration and not this
273 module.
274 - renamed json => JSON in error messages.
275 - corrected the character offset in some error messages.
276
277 1.01 Sat Mar 31 16:15:40 CEST 2007
278 - do not segfault when from_json/decode gets passed
279 a non-string object (reported by Florian Ragwitz).
280 This has no effect on normal operation.
281
282 1.0 Thu Mar 29 04:43:34 CEST 2007
283 - the long awaited (by me) 1.0 version.
284 - add \0 (JSON::XS::false) and \1 (JSON::XS::true) mappings to JSON
285 true and false.
286 - add some more notes to shrink, as suggested by Alex Efros.
287 - improve testsuite.
288 - halve the default nesting depth limit, to hopefully make it
289 work on Freebsd (unfortunately, the cpan tester did not
290 send me his report, so I cannot ask about the stack limit on fbsd).
291
292 0.8 Mon Mar 26 00:10:48 CEST 2007
293 - fix a memleak when decoding hashes.
294 - export jsonToBj and objToJson as aliases
295 to to_json and from_json, to reduce incompatibilities
296 between JSON/JSON::PC and JSON::XS. (experimental).
297 - implement a maximum nesting depth for both en- and de-coding.
298 - added a security considerations sections.
299
300 0.7 Sun Mar 25 01:46:30 CET 2007
301 - code cleanup.
302 - fix a memory overflow bug when indenting.
303 - pretty-printing now up to 15% faster.
304 - improve decoding speed of strings by
305 up to 50% by specialcasing short strings.
306 - further decoding speedups for strings using
307 lots of \u escapes.
308 - improve utf8 decoding speed for U+80 .. U+7FF.
309
310 0.5 Sat Mar 24 20:41:51 CET 2007
311 - added the UTF-16 encoding example hinted at in previous
312 versions.
313 - minor documentation fixes.
314 - fix a bug in and optimise canonicalising fastpath
315 (reported by Craig Manley).
316 - remove a subtest that breaks with bleadperl (reported
317 by Andreas König).
318
319 0.31 Sat Mar 24 02:14:34 CET 2007
320 - documentation updates.
321 - do some casting to hopefully fix Andreas' problem.
322 - nuke bogus json rpc stuff.
323
324 0.3 Fri Mar 23 19:33:21 CET 2007
325 - remove spurious PApp::Util reference (John McNamara).
326 - adapted lots of tests from other json modules
327 (idea by Chris Carline).
328 - documented mapping from json to perl and vice versa.
329 - improved the documentation by adding more examples.
330 - added short escaping forms, reducing the created
331 json texts a bit.
332 - added shrink flag.
333 - when flag methods are called without enable argument
334 they will by default enable their flag.
335 - considerably improved string encoding speed (at least
336 with gcc 4).
337 - added a test that covers lots of different characters.
338 - clarified some error messages.
339 - error messages now use correct character offset
340 with F_UTF8.
341 - improve the "no bytes" and "no warnings" hacks in
342 case the called functions do... stuff.
343 - croak when encoding to ascii and an out-of-range
344 (non-unicode) codepoint is encountered.
345
346 0.2 Fri Mar 23 00:23:34 CET 2007
347 - the "could not sleep without debugging release".
348 it should basically work now, with many bugs as
349 no production tests have been run yet.
350 - added more testcases.
351 - the expected shitload of bugfixes.
352 - handle utf8 flag correctly in decode.
353 - fix segfault in decoder.
354 - utf8n_to_uvuni sets retlen to -1, but retlen is an
355 unsigned types (argh).
356 - fix decoding of utf-8 strings.
357 - improved error diagnostics.
358 - fix decoding of 'null'.
359 - fix parsing of empty array/hashes
360 - silence warnings when we prepare the croak message.
361
362 0.1 Thu Mar 22 22:13:43 CET 2007
363 - first release, very untested, basically just to claim
364 the namespace.
365
366 0.01 Thu Mar 22 06:08:12 CET 2007
367 - original version; cloned from Convert-Scalar
368