[ViewVC] Contents of: cvs/JSON-XS/Changes

Revision history for Perl extension JSON::XS

TODO: maybe detetc and croak on more invalid inputs (e.g. +-inf/nan)
TODO: maybe avoid the reblessing and better support readonly objects.

        - add bencode as to/from option in bin/json_xs.

2.32 Thu Aug 11 19:06:38 CEST 2011
        - fix a bug in the initial whitespace accumulation.

2.31 Wed Jul 27 17:53:05 CEST 2011
        - don't accumulate initial whitespace in the incremental buffer
          (this can be useful to allow whitespace-keepalive on a tcp
          connection without triggering the max_size limit).
        - properly croak on some invalid inputs that are not strings
          (e.g. undef) when trying to decode a json text (reported
          and analyzed by Goro Fuji).

2.3   Wed Aug 18 01:26:47 CEST 2010
        - make sure decoder doesn't change the decoding in the incremental
          parser (testcase provided by Hendrik Schumacher).
        - applied patch by DaTa for Data::Dumper support in json_xs.
        - added -t dump support to json_xs, using Data::Dump.
        - added -f eval support to json_xs.

2.29  Wed Mar 17 02:39:12 CET 2010
        - fix a memory leak when callbacks set using filter_json_object
          or filter_json_single_key_object were called (great testcase
          by Eric Wilhelm).

2.28  Thu Mar 11 20:30:46 CET 2010
        - implement our own atof function - perl's can be orders of
          magnitudes slower than even the system one. on the positive
          side, ours seems to be more exact in general than perl's.
          (testcase provided by Tim Meadowcroft).
        - clarify floating point conversion issues a bit.
        - update jpsykes csrf article url.
        - updated benchmark section - JSON::PP became much faster!

2.27  Thu Jan  7 07:35:08 CET 2010
        - support relaxed option inside the incremental parser
          (testcase provided by IKEGAMI via Makamaka).

2.26  Sat Oct 10 03:26:19 CEST 2009
        - big integers could become truncated (based on patch
          by Strobl Anton).
        - output format change: indent now adds a final newline, which is
          more expected and more true to the documentation.

2.25  Sat Aug  8 12:04:41 CEST 2009
        - the perl debugger completely breaks lvalue subs - try to work
          around the issue.
        - ignore RMAGICAL hashes w.r.t. CANONICAL.
        - try to work around a possible char signedness issue on aix.
        - require common sense.

2.24  Sat May 30 08:25:45 CEST 2009
        - the incremental parser did not update its parse offset
          pointer correctly when parsing utf8-strings (nicely
          debugged by Martin Evans).
        - appending a non-utf8-string to the incremental parser
          in utf8 mode failed to upgrade the string.
        - wording of parse error messages has been improved.

2.232 Sun Feb 22 11:12:25 CET 2009
        - use an exponential algorithm to extend strings, to
          help platforms with bad or abysmal==windows memory
          allocater performance, at the expense of some memory
          wastage (use shrink to recover this extra memory).
          (nicely analysed by Dmitry Karasik).

2.2311 Thu Feb 19 02:12:54 CET 2009
        - add a section "JSON and ECMAscript" to explain some
          incompatibilities between the two (problem was noted by
          various people).
        - add t/20_faihu.t.

2.231 Thu Nov 20 04:59:08 CET 2008
        - work around 5.10.0 magic bugs where manipulating magic values
          (such as $1) would permanently damage them as perl would
          ignore the magicalness, by making a full copy of the string,
          reported by Dmitry Karasik.
        - work around spurious warnings under older perl 5.8's.

2.23 Mon Sep 29 05:08:29 CEST 2008
        - fix a compilation problem when perl is not using char * as, well,
          char *.
        - use PL_hexdigit in favour of rolling our own.

2.2222 Sun Jul 20 18:49:00 CEST 2008
        - same game again, broken 5.10 finds yet another assertion
          failure, and the workaround causes additional runtime warnings.
          Work around the next assertion AND the warning. 5.10 seriously
          needs to adjust it's attitude against working code.

2.222 Sat Jul 19 06:15:34 CEST 2008
        - you work around one -DDEBUGGING assertion bug in perl 5.10
          just to hit the next one. work around this one, too.

2.22 Tue Jul 15 13:26:51 CEST 2008
        - allow higher nesting levels in incremental parser.
        - error out earlier in some cases in the incremental parser
          (as suggested by Yuval Kogman).
        - improve incr-parser test (Yuval Kogman).

2.21 Tue Jun  3 08:43:23 CEST 2008
        - (hopefully) work around a perl 5.10 bug with -DDEBUGGING.
        - remove the experimental status of the incremental parser interface.
        - move =encoding around again, to avoid bugs with search.cpan.org.
          when can we finally have utf-8 in pod???
        - add ->incr_reset method.

2.2  Wed Apr 16 20:37:25 CEST 2008
        - lifted the log2 rounding restriction of max_depth and max_size.
        - make booleans mutable by creating a copy instead of handing out
          the same scalar (reported by pasha sadri).
        - added support for incremental json parsing (still EXPERIMENTAL).
        - implemented and added a json_xs command line utility that can convert
          from/to a number of serialisation formats - tell me if you need more.
        - implement allow_unknown/get_allow_unknown methods.
        - fixed documentation of max_depth w.r.t. higher and equal.
        - moved down =encoding directive a bit, too much breaks if it's the first
          pod directive :/.
        - removed documentation section on other modules, it became somewhat
          outdated and is nowadays mostly of historical interest.

2.1  Wed Mar 19 23:23:18 CET 2008
        - update documentation here and there: add a large section
          about utf8/latin1/ascii flags, add a security consideration
          and extend and clarify the JSON and YAML section.
        - medium speed enhancements when encoding/decoding non-ascii chars.
        - minor speedup in number encoding case.
        - extend and clarify the section on incompatibilities
          between YAML and JSON.
        - switch to static inline from just inline when using gcc.
        - add =encoding utf-8 to the manpage, now that perl 5.10 supports it.
        - fix some issues with UV to JSON conversion of unknown impact.
        - published the yahoo locals search result used in benchmarks as the
          original url changes so comparison is impossible.

2.01 Wed Dec  5 11:40:28 CET 2007
        - INCOMPATIBLE API CHANGE: to_json and from_json have been
          renamed to encode_json/decode_json for JSON.pm compatibility.
          The old functions croak and might be replaced by JSON.pm
          comaptible versions in some later release.

2.0  Tue Dec  4 11:30:46 CET 2007
        - this is supposed to be the first version of JSON::XS
          compatible with version 2.0+ of the JSON module.
          Using the JSON module as frontend to JSON::XS should be
          as fast as using JSON::XS directly, so consider using it
          instead.
        - added get_* methods for all "simple" options.
        - make JSON::XS subclassable.

1.53 Tue Nov 13 23:58:33 CET 2007
        - minor doc clarifications.
        - fixed many doc typos (patch by Thomas L. Shinnick).

1.52 Mon Oct 15 03:22:06 CEST 2007
        - remove =encoding pod directive again, it confuses too many pod
          parsers :/.

1.51 Sat Oct 13 03:55:56 CEST 2007
        - encode empty arrays/hashes in a compact way when pretty is enabled.
        - apparently JSON::XS was used to find some bugs in the
          JSON_checker testsuite, so add (the corrected) JSON_checker tests to
          the testsuite.
        - quite a bit of doc updates/extension.
        - require 5.8.2, as this seems to be the first unicode-stable version.

1.5  Tue Aug 28 04:05:38 CEST 2007
        - add support for tied hashes, based on ideas and testcase by
          Marcus Holland-Moritz.
        - implemented relaxed parsing mode where some extensions are being
          accepted. generation is still JSON-only.

1.44 Wed Aug 22 01:02:44 CEST 2007
        - very experimental process-emulation support, slowing everything down.
          the horribly broken perl threads are still not supported - YMMV.

1.43 Thu Jul 26 13:26:37 CEST 2007
        - convert big json numbers exclusively consisting of digits to NV
          only when there is no loss of precision, otherwise to string.

1.42 Tue Jul 24 00:51:18 CEST 2007
        - fix a crash caused by not handling missing array elements
          (report and testcase by Jay Kuri).

1.41 Tue Jul 10 18:21:44 CEST 2007
        - fix compilation with NDEBUG (assert side-effect),
          affects convert_blessed only.
        - fix a bug in decode filters calling ENTER; SAVETMPS;
          one time too often.
        - catch a typical error in TO_JSON methods.
        - antique-ised XS.xs again to work with outdated
          C compilers (windows...).

1.4  Mon Jul  2 10:06:30 CEST 2007
        - add convert_blessed setting.
        - encode did not catch all blessed objects, encoding their
          contents in most cases. This has been fixed by introducing
          the allow_blessed setting.
        - added filter_json_object and filter_json_single_key_object
          settings that specify a callback to be called when
          all/specific json objects are encountered.
        - assume that most object keys are simple ascii words and
          optimise this case, penalising the general case. This can
          speed up decoding by 30% in typical cases and gives
          a smaller and faster perl hash.
        - implemented simpleminded, optional resource size checking
          in decode_json.
        - remove objToJson/jsonToObj aliases, as the next version
          of JSON will not have them either.
        - bit the bullet and converted the very simple json object
          into a more complex one.
        - work around a bug where perl wrongly claims an integer
          is not an integer.
        - unbundle JSON::XS::Boolean into own pm file so Storable
          and similar modules can resolve the overloading when thawing.

1.3  Sun Jun 24 01:55:02 CEST 2007
        - make JSON::XS::true and false special overloaded objects
          and return those instead of 1 and 0 for those json atoms
          (JSON::PP compatibility is NOT achieved yet).
        - add JSON::XS::is_bool predicate to test for those special
          values.
        - add a reference to
          http://jpsykes.com/47/practical-csrf-and-json-security.
        - removed require 5.8.8 again, it is just not very expert-friendly.
          Also try to be more compatible with slightly older versions,
          which are not recommended (because they are buggy).

1.24 Mon Jun 11 05:40:49 CEST 2007
        - added informative section on JSON-as-YAML.
        - get rid of some c99-isms again.
        - localise dec->cur in decode_str, speeding up
          string decoding considerably (>15% on my amd64 + gcc).
        - increased SHORT_STRING_LEN to 16kb: stack space is
          usually plenty, and this actually saves memory
          when !shrinking as short strings will fit perfectly.

1.23 Wed Jun  6 20:13:06 CEST 2007
        - greatly improved small integer encoding and decoding speed.
        - implement a number of µ-optimisations.
        - updated benchmarks.

1.22 Thu May 24 00:07:25 CEST 2007
        - require 5.8.8 explicitly as older perls do not seem to offer
          the required macros.
        - possibly made it compile on so-called C compilers by microsoft.

1.21 Wed May  9 18:40:32 CEST 2007
        - character offset reported for trailing garbage was random.

1.2  Wed May  9 18:35:01 CEST 2007
        - decode did not work with magical scalars (doh!).
        - added latin1 flag to produce JSON texts in the latin1 subset
          of unicode.
        - flag trailing garbage as error.
        - new decode_prefix method that returns the number
          of characters consumed by a decode.
        - max octets/char in perls UTF-X is actually 13, not 11,
          as pointed out by Glenn Linderman.
        - fixed typoe reported by YAMASHINA Hio.

1.11 Mon Apr  9 07:05:49 CEST 2007
        - properly 0-terminate sv's returned by encode to help
          C libraries that expect that 0 to be there.
        - partially "port" JSON from C to microsofts fucking broken
          pseudo-C. They should be burned to the ground for pissing
          on standards. And I should be stoned for even trying to
          support this filthy excuse for a c compiler.

1.1  Wed Apr  4 01:45:00 CEST 2007
        - clarify documentation (pointed out by Quinn Weaver).
        - decode_utf8 sometimes did not correctly flag errors,
          leading to segfaults.
        - further reduced default nesting depth to 512 due to the test
          failure by that anonymous "chris" whose e-mail address seems
          to be impossible to get. Tests on other freebsd systems indicate
          that this is likely a problem in his/her configuration and not this
          module.
        - renamed json => JSON in error messages.
        - corrected the character offset in some error messages.

1.01 Sat Mar 31 16:15:40 CEST 2007
        - do not segfault when from_json/decode gets passed
          a non-string object (reported by Florian Ragwitz).
          This has no effect on normal operation.

1.0  Thu Mar 29 04:43:34 CEST 2007
        - the long awaited (by me) 1.0 version.
        - add \0 (JSON::XS::false) and \1 (JSON::XS::true) mappings to JSON
          true and false.
        - add some more notes to shrink, as suggested by Alex Efros.
        - improve testsuite.
        - halve the default nesting depth limit, to hopefully make it
          work on Freebsd (unfortunately, the cpan tester did not
          send me his report, so I cannot ask about the stack limit on fbsd).

0.8  Mon Mar 26 00:10:48 CEST 2007
        - fix a memleak when decoding hashes.
        - export jsonToBj and objToJson as aliases
          to to_json and from_json, to reduce incompatibilities
          between JSON/JSON::PC and JSON::XS. (experimental).
        - implement a maximum nesting depth for both en- and de-coding.
        - added a security considerations sections.

0.7  Sun Mar 25 01:46:30 CET 2007
        - code cleanup.
        - fix a memory overflow bug when indenting.
        - pretty-printing now up to 15% faster.
        - improve decoding speed of strings by
          up to 50% by specialcasing short strings.
        - further decoding speedups for strings using
          lots of \u escapes.
        - improve utf8 decoding speed for U+80 .. U+7FF.

0.5  Sat Mar 24 20:41:51 CET 2007
        - added the UTF-16 encoding example hinted at in previous
          versions.
        - minor documentation fixes.
        - fix a bug in and optimise canonicalising fastpath
          (reported by Craig Manley).
        - remove a subtest that breaks with bleadperl (reported
          by Andreas König).

0.31 Sat Mar 24 02:14:34 CET 2007
        - documentation updates.
        - do some casting to hopefully fix Andreas' problem.
        - nuke bogus json rpc stuff.

0.3  Fri Mar 23 19:33:21 CET 2007
        - remove spurious PApp::Util reference (John McNamara).
        - adapted lots of tests from other json modules
          (idea by Chris Carline).
        - documented mapping from json to perl and vice versa.
        - improved the documentation by adding more examples.
        - added short escaping forms, reducing the created
          json texts a bit.
        - added shrink flag.
        - when flag methods are called without enable argument
          they will by default enable their flag.
        - considerably improved string encoding speed (at least
          with gcc 4).
        - added a test that covers lots of different characters.
        - clarified some error messages.
        - error messages now use correct character offset
          with F_UTF8.
        - improve the "no bytes" and "no warnings" hacks in
          case the called functions do... stuff.
        - croak when encoding to ascii and an out-of-range
          (non-unicode) codepoint is encountered.

0.2  Fri Mar 23 00:23:34 CET 2007
        - the "could not sleep without debugging release".
          it should basically work now, with many bugs as
          no production tests have been run yet.
        - added more testcases.
        - the expected shitload of bugfixes.
        - handle utf8 flag correctly in decode.
        - fix segfault in decoder.
        - utf8n_to_uvuni sets retlen to -1, but retlen is an
          unsigned types (argh).
        - fix decoding of utf-8 strings.
        - improved error diagnostics.
        - fix decoding of 'null'.
        - fix parsing of empty array/hashes
        - silence warnings when we prepare the croak message.

0.1   Thu Mar 22 22:13:43 CET 2007
        - first release, very untested, basically just to claim
          the namespace.
 
0.01  Thu Mar 22 06:08:12 CET 2007
        - original version; cloned from Convert-Scalar

Revision:	1.151
Committed:	Thu Sep 22 19:37:24 2011 UTC (12 years, 7 months ago) by root
Branch:	MAIN
Changes since 1.150:	+3 -0 lines
Log Message:	* empty log message *
#	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
6	- add bencode as to/from option in bin/json_xs.
7
8	2.32 Thu Aug 11 19:06:38 CEST 2011
9	- fix a bug in the initial whitespace accumulation.
10
11	2.31 Wed Jul 27 17:53:05 CEST 2011
12	- don't accumulate initial whitespace in the incremental buffer
13	(this can be useful to allow whitespace-keepalive on a tcp
14	connection without triggering the max_size limit).
15	- properly croak on some invalid inputs that are not strings
16	(e.g. undef) when trying to decode a json text (reported
17	and analyzed by Goro Fuji).
18
19	2.3 Wed Aug 18 01:26:47 CEST 2010
20	- make sure decoder doesn't change the decoding in the incremental
21	parser (testcase provided by Hendrik Schumacher).
22	- applied patch by DaTa for Data::Dumper support in json_xs.
23	- added -t dump support to json_xs, using Data::Dump.
24	- added -f eval support to json_xs.
25
26	2.29 Wed Mar 17 02:39:12 CET 2010
27	- fix a memory leak when callbacks set using filter_json_object
28	or filter_json_single_key_object were called (great testcase
29	by Eric Wilhelm).
30
31	2.28 Thu Mar 11 20:30:46 CET 2010
32	- implement our own atof function - perl's can be orders of
33	magnitudes slower than even the system one. on the positive
34	side, ours seems to be more exact in general than perl's.
35	(testcase provided by Tim Meadowcroft).
36	- clarify floating point conversion issues a bit.
37	- update jpsykes csrf article url.
38	- updated benchmark section - JSON::PP became much faster!
39
40	2.27 Thu Jan 7 07:35:08 CET 2010
41	- support relaxed option inside the incremental parser
42	(testcase provided by IKEGAMI via Makamaka).
43
44	2.26 Sat Oct 10 03:26:19 CEST 2009
45	- big integers could become truncated (based on patch
46	by Strobl Anton).
47	- output format change: indent now adds a final newline, which is
48	more expected and more true to the documentation.
49
50	2.25 Sat Aug 8 12:04:41 CEST 2009
51	- the perl debugger completely breaks lvalue subs - try to work
52	around the issue.
53	- ignore RMAGICAL hashes w.r.t. CANONICAL.
54	- try to work around a possible char signedness issue on aix.
55	- require common sense.
56
57	2.24 Sat May 30 08:25:45 CEST 2009
58	- the incremental parser did not update its parse offset
59	pointer correctly when parsing utf8-strings (nicely
60	debugged by Martin Evans).
61	- appending a non-utf8-string to the incremental parser
62	in utf8 mode failed to upgrade the string.
63	- wording of parse error messages has been improved.
64
65	2.232 Sun Feb 22 11:12:25 CET 2009
66	- use an exponential algorithm to extend strings, to
67	help platforms with bad or abysmal==windows memory
68	allocater performance, at the expense of some memory
69	wastage (use shrink to recover this extra memory).
70	(nicely analysed by Dmitry Karasik).
71
72	2.2311 Thu Feb 19 02:12:54 CET 2009
73	- add a section "JSON and ECMAscript" to explain some
74	incompatibilities between the two (problem was noted by
75	various people).
76	- add t/20_faihu.t.
77
78	2.231 Thu Nov 20 04:59:08 CET 2008
79	- work around 5.10.0 magic bugs where manipulating magic values
80	(such as $1) would permanently damage them as perl would
81	ignore the magicalness, by making a full copy of the string,
82	reported by Dmitry Karasik.
83	- work around spurious warnings under older perl 5.8's.
84
85	2.23 Mon Sep 29 05:08:29 CEST 2008
86	- fix a compilation problem when perl is not using char * as, well,
87	char *.
88	- use PL_hexdigit in favour of rolling our own.
89
90	2.2222 Sun Jul 20 18:49:00 CEST 2008
91	- same game again, broken 5.10 finds yet another assertion
92	failure, and the workaround causes additional runtime warnings.
93	Work around the next assertion AND the warning. 5.10 seriously
94	needs to adjust it's attitude against working code.
95
96	2.222 Sat Jul 19 06:15:34 CEST 2008
97	- you work around one -DDEBUGGING assertion bug in perl 5.10
98	just to hit the next one. work around this one, too.
99
100	2.22 Tue Jul 15 13:26:51 CEST 2008
101	- allow higher nesting levels in incremental parser.
102	- error out earlier in some cases in the incremental parser
103	(as suggested by Yuval Kogman).
104	- improve incr-parser test (Yuval Kogman).
105
106	2.21 Tue Jun 3 08:43:23 CEST 2008
107	- (hopefully) work around a perl 5.10 bug with -DDEBUGGING.
108	- remove the experimental status of the incremental parser interface.
109	- move =encoding around again, to avoid bugs with search.cpan.org.
110	when can we finally have utf-8 in pod???
111	- add ->incr_reset method.
112
113	2.2 Wed Apr 16 20:37:25 CEST 2008
114	- lifted the log2 rounding restriction of max_depth and max_size.
115	- make booleans mutable by creating a copy instead of handing out
116	the same scalar (reported by pasha sadri).
117	- added support for incremental json parsing (still EXPERIMENTAL).
118	- implemented and added a json_xs command line utility that can convert
119	from/to a number of serialisation formats - tell me if you need more.
120	- implement allow_unknown/get_allow_unknown methods.
121	- fixed documentation of max_depth w.r.t. higher and equal.
122	- moved down =encoding directive a bit, too much breaks if it's the first
123	pod directive :/.
124	- removed documentation section on other modules, it became somewhat
125	outdated and is nowadays mostly of historical interest.
126
127	2.1 Wed Mar 19 23:23:18 CET 2008
128	- update documentation here and there: add a large section
129	about utf8/latin1/ascii flags, add a security consideration
130	and extend and clarify the JSON and YAML section.
131	- medium speed enhancements when encoding/decoding non-ascii chars.
132	- minor speedup in number encoding case.
133	- extend and clarify the section on incompatibilities
134	between YAML and JSON.
135	- switch to static inline from just inline when using gcc.
136	- add =encoding utf-8 to the manpage, now that perl 5.10 supports it.
137	- fix some issues with UV to JSON conversion of unknown impact.
138	- published the yahoo locals search result used in benchmarks as the
139	original url changes so comparison is impossible.
140
141	2.01 Wed Dec 5 11:40:28 CET 2007
142	- INCOMPATIBLE API CHANGE: to_json and from_json have been
143	renamed to encode_json/decode_json for JSON.pm compatibility.
144	The old functions croak and might be replaced by JSON.pm
145	comaptible versions in some later release.
146
147	2.0 Tue Dec 4 11:30:46 CET 2007
148	- this is supposed to be the first version of JSON::XS
149	compatible with version 2.0+ of the JSON module.
150	Using the JSON module as frontend to JSON::XS should be
151	as fast as using JSON::XS directly, so consider using it
152	instead.
153	- added get_* methods for all "simple" options.
154	- make JSON::XS subclassable.
155
156	1.53 Tue Nov 13 23:58:33 CET 2007
157	- minor doc clarifications.
158	- fixed many doc typos (patch by Thomas L. Shinnick).
159
160	1.52 Mon Oct 15 03:22:06 CEST 2007
161	- remove =encoding pod directive again, it confuses too many pod
162	parsers :/.
163
164	1.51 Sat Oct 13 03:55:56 CEST 2007
165	- encode empty arrays/hashes in a compact way when pretty is enabled.
166	- apparently JSON::XS was used to find some bugs in the
167	JSON_checker testsuite, so add (the corrected) JSON_checker tests to
168	the testsuite.
169	- quite a bit of doc updates/extension.
170	- require 5.8.2, as this seems to be the first unicode-stable version.
171
172	1.5 Tue Aug 28 04:05:38 CEST 2007
173	- add support for tied hashes, based on ideas and testcase by
174	Marcus Holland-Moritz.
175	- implemented relaxed parsing mode where some extensions are being
176	accepted. generation is still JSON-only.
177
178	1.44 Wed Aug 22 01:02:44 CEST 2007
179	- very experimental process-emulation support, slowing everything down.
180	the horribly broken perl threads are still not supported - YMMV.
181
182	1.43 Thu Jul 26 13:26:37 CEST 2007
183	- convert big json numbers exclusively consisting of digits to NV
184	only when there is no loss of precision, otherwise to string.
185
186	1.42 Tue Jul 24 00:51:18 CEST 2007
187	- fix a crash caused by not handling missing array elements
188	(report and testcase by Jay Kuri).
189
190	1.41 Tue Jul 10 18:21:44 CEST 2007
191	- fix compilation with NDEBUG (assert side-effect),
192	affects convert_blessed only.
193	- fix a bug in decode filters calling ENTER; SAVETMPS;
194	one time too often.
195	- catch a typical error in TO_JSON methods.
196	- antique-ised XS.xs again to work with outdated
197	C compilers (windows...).
198
199	1.4 Mon Jul 2 10:06:30 CEST 2007
200	- add convert_blessed setting.
201	- encode did not catch all blessed objects, encoding their
202	contents in most cases. This has been fixed by introducing
203	the allow_blessed setting.
204	- added filter_json_object and filter_json_single_key_object
205	settings that specify a callback to be called when
206	all/specific json objects are encountered.
207	- assume that most object keys are simple ascii words and
208	optimise this case, penalising the general case. This can
209	speed up decoding by 30% in typical cases and gives
210	a smaller and faster perl hash.
211	- implemented simpleminded, optional resource size checking
212	in decode_json.
213	- remove objToJson/jsonToObj aliases, as the next version
214	of JSON will not have them either.
215	- bit the bullet and converted the very simple json object
216	into a more complex one.
217	- work around a bug where perl wrongly claims an integer
218	is not an integer.
219	- unbundle JSON::XS::Boolean into own pm file so Storable
220	and similar modules can resolve the overloading when thawing.
221
222	1.3 Sun Jun 24 01:55:02 CEST 2007
223	- make JSON::XS::true and false special overloaded objects
224	and return those instead of 1 and 0 for those json atoms
225	(JSON::PP compatibility is NOT achieved yet).
226	- add JSON::XS::is_bool predicate to test for those special
227	values.
228	- add a reference to
229	http://jpsykes.com/47/practical-csrf-and-json-security.
230	- removed require 5.8.8 again, it is just not very expert-friendly.
231	Also try to be more compatible with slightly older versions,
232	which are not recommended (because they are buggy).
233
234	1.24 Mon Jun 11 05:40:49 CEST 2007
235	- added informative section on JSON-as-YAML.
236	- get rid of some c99-isms again.
237	- localise dec->cur in decode_str, speeding up
238	string decoding considerably (>15% on my amd64 + gcc).
239	- increased SHORT_STRING_LEN to 16kb: stack space is
240	usually plenty, and this actually saves memory
241	when !shrinking as short strings will fit perfectly.
242
243	1.23 Wed Jun 6 20:13:06 CEST 2007
244	- greatly improved small integer encoding and decoding speed.
245	- implement a number of µ-optimisations.
246	- updated benchmarks.
247
248	1.22 Thu May 24 00:07:25 CEST 2007
249	- require 5.8.8 explicitly as older perls do not seem to offer
250	the required macros.
251	- possibly made it compile on so-called C compilers by microsoft.
252
253	1.21 Wed May 9 18:40:32 CEST 2007
254	- character offset reported for trailing garbage was random.
255
256	1.2 Wed May 9 18:35:01 CEST 2007
257	- decode did not work with magical scalars (doh!).
258	- added latin1 flag to produce JSON texts in the latin1 subset
259	of unicode.
260	- flag trailing garbage as error.
261	- new decode_prefix method that returns the number
262	of characters consumed by a decode.
263	- max octets/char in perls UTF-X is actually 13, not 11,
264	as pointed out by Glenn Linderman.
265	- fixed typoe reported by YAMASHINA Hio.
266
267	1.11 Mon Apr 9 07:05:49 CEST 2007
268	- properly 0-terminate sv's returned by encode to help
269	C libraries that expect that 0 to be there.
270	- partially "port" JSON from C to microsofts fucking broken
271	pseudo-C. They should be burned to the ground for pissing
272	on standards. And I should be stoned for even trying to
273	support this filthy excuse for a c compiler.
274
275	1.1 Wed Apr 4 01:45:00 CEST 2007
276	- clarify documentation (pointed out by Quinn Weaver).
277	- decode_utf8 sometimes did not correctly flag errors,
278	leading to segfaults.
279	- further reduced default nesting depth to 512 due to the test
280	failure by that anonymous "chris" whose e-mail address seems
281	to be impossible to get. Tests on other freebsd systems indicate
282	that this is likely a problem in his/her configuration and not this
283	module.
284	- renamed json => JSON in error messages.
285	- corrected the character offset in some error messages.
286
287	1.01 Sat Mar 31 16:15:40 CEST 2007
288	- do not segfault when from_json/decode gets passed
289	a non-string object (reported by Florian Ragwitz).
290	This has no effect on normal operation.
291
292	1.0 Thu Mar 29 04:43:34 CEST 2007
293	- the long awaited (by me) 1.0 version.
294	- add \0 (JSON::XS::false) and \1 (JSON::XS::true) mappings to JSON
295	true and false.
296	- add some more notes to shrink, as suggested by Alex Efros.
297	- improve testsuite.
298	- halve the default nesting depth limit, to hopefully make it
299	work on Freebsd (unfortunately, the cpan tester did not
300	send me his report, so I cannot ask about the stack limit on fbsd).
301
302	0.8 Mon Mar 26 00:10:48 CEST 2007
303	- fix a memleak when decoding hashes.
304	- export jsonToBj and objToJson as aliases
305	to to_json and from_json, to reduce incompatibilities
306	between JSON/JSON::PC and JSON::XS. (experimental).
307	- implement a maximum nesting depth for both en- and de-coding.
308	- added a security considerations sections.
309
310	0.7 Sun Mar 25 01:46:30 CET 2007
311	- code cleanup.
312	- fix a memory overflow bug when indenting.
313	- pretty-printing now up to 15% faster.
314	- improve decoding speed of strings by
315	up to 50% by specialcasing short strings.
316	- further decoding speedups for strings using
317	lots of \u escapes.
318	- improve utf8 decoding speed for U+80 .. U+7FF.
319
320	0.5 Sat Mar 24 20:41:51 CET 2007
321	- added the UTF-16 encoding example hinted at in previous
322	versions.
323	- minor documentation fixes.
324	- fix a bug in and optimise canonicalising fastpath
325	(reported by Craig Manley).
326	- remove a subtest that breaks with bleadperl (reported
327	by Andreas König).
328
329	0.31 Sat Mar 24 02:14:34 CET 2007
330	- documentation updates.
331	- do some casting to hopefully fix Andreas' problem.
332	- nuke bogus json rpc stuff.
333
334	0.3 Fri Mar 23 19:33:21 CET 2007
335	- remove spurious PApp::Util reference (John McNamara).
336	- adapted lots of tests from other json modules
337	(idea by Chris Carline).
338	- documented mapping from json to perl and vice versa.
339	- improved the documentation by adding more examples.
340	- added short escaping forms, reducing the created
341	json texts a bit.
342	- added shrink flag.
343	- when flag methods are called without enable argument
344	they will by default enable their flag.
345	- considerably improved string encoding speed (at least
346	with gcc 4).
347	- added a test that covers lots of different characters.
348	- clarified some error messages.
349	- error messages now use correct character offset
350	with F_UTF8.
351	- improve the "no bytes" and "no warnings" hacks in
352	case the called functions do... stuff.
353	- croak when encoding to ascii and an out-of-range
354	(non-unicode) codepoint is encountered.
355
356	0.2 Fri Mar 23 00:23:34 CET 2007
357	- the "could not sleep without debugging release".
358	it should basically work now, with many bugs as
359	no production tests have been run yet.
360	- added more testcases.
361	- the expected shitload of bugfixes.
362	- handle utf8 flag correctly in decode.
363	- fix segfault in decoder.
364	- utf8n_to_uvuni sets retlen to -1, but retlen is an
365	unsigned types (argh).
366	- fix decoding of utf-8 strings.
367	- improved error diagnostics.
368	- fix decoding of 'null'.
369	- fix parsing of empty array/hashes
370	- silence warnings when we prepare the croak message.
371
372	0.1 Thu Mar 22 22:13:43 CET 2007
373	- first release, very untested, basically just to claim
374	the namespace.
375
376	0.01 Thu Mar 22 06:08:12 CET 2007
377	- original version; cloned from Convert-Scalar
378