[ViewVC] Annotation 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.
TODO: http://stevehanov.ca/blog/index.php?id=104 compression

3.0
        - experimental object tagging extension (using the
          Types::Serialiser serialisation protocol).
        - reworked the documentation regarding object serialisation,
          add a new OBJECT SERIALISATION section that explains the
          whole process.
        - switch to Types::Serialiser booleans.
        - remove to_json/from_json.
        - other minor improvements to the documentation.

2.34 Thu May 23 11:30:34 CEST 2013
        - work around bugs in perl 5.18 breaking more than 100
          widely used modules, without a fix in sight because
          p5pers don't care about CPAN anymore.
        - when canonicalising, only allocate up to 64 hash key
          pointers on the stack. for larger hashes, use the heap,
          to avoid using too much stackspace.
        - discuss the problem with setlocale (reported by a few victims).

2.33 Wed Aug  1 21:03:52 CEST 2012
        - internal encode/decode XS wrappers did not expect stack
          moves caused by callbacks (analyzed and testcase by Jesse Luehrs).
        - add bencode as to/from option in bin/json_xs.
        - add -e option to json_xs, and none and string in/out formats.

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:	1.159
Committed:	Tue Oct 29 00:06:40 2013 UTC (10 years, 6 months ago) by root
Branch:	MAIN
Changes since 1.158:	+7 -1 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	Revision history for Perl extension JSON::XS
2	root	1.2
3	root	1.147	TODO: maybe detetc and croak on more invalid inputs (e.g. +-inf/nan)
4	root	1.151	TODO: maybe avoid the reblessing and better support readonly objects.
5	root	1.153	TODO: http://stevehanov.ca/blog/index.php?id=104 compression
6	root	1.151
7	root	1.159	3.0
8			- experimental object tagging extension (using the
9			Types::Serialiser serialisation protocol).
10			- reworked the documentation regarding object serialisation,
11			add a new OBJECT SERIALISATION section that explains the
12			whole process.
13	root	1.158	- switch to Types::Serialiser booleans.
14	root	1.156	- remove to_json/from_json.
15	root	1.159	- other minor improvements to the documentation.
16	root	1.156
17	root	1.155	2.34 Thu May 23 11:30:34 CEST 2013
18			- work around bugs in perl 5.18 breaking more than 100
19			widely used modules, without a fix in sight because
20			p5pers don't care about CPAN anymore.
21	root	1.154	- when canonicalising, only allocate up to 64 hash key
22			pointers on the stack. for larger hashes, use the heap,
23			to avoid using too much stackspace.
24	root	1.155	- discuss the problem with setlocale (reported by a few victims).
25	root	1.154
26	root	1.153	2.33 Wed Aug 1 21:03:52 CEST 2012
27			- internal encode/decode XS wrappers did not expect stack
28			moves caused by callbacks (analyzed and testcase by Jesse Luehrs).
29	root	1.151	- add bencode as to/from option in bin/json_xs.
30	root	1.152	- add -e option to json_xs, and none and string in/out formats.
31	root	1.147
32	root	1.150	2.32 Thu Aug 11 19:06:38 CEST 2011
33			- fix a bug in the initial whitespace accumulation.
34
35	root	1.149	2.31 Wed Jul 27 17:53:05 CEST 2011
36	root	1.153	- don't accumulate initial whitespace in the incremental buffer
37	root	1.149	(this can be useful to allow whitespace-keepalive on a tcp
38			connection without triggering the max_size limit).
39	root	1.148	- properly croak on some invalid inputs that are not strings
40			(e.g. undef) when trying to decode a json text (reported
41			and analyzed by Goro Fuji).
42
43	root	1.146	2.3 Wed Aug 18 01:26:47 CEST 2010
44			- make sure decoder doesn't change the decoding in the incremental
45			parser (testcase provided by Hendrik Schumacher).
46	root	1.144	- applied patch by DaTa for Data::Dumper support in json_xs.
47	root	1.145	- added -t dump support to json_xs, using Data::Dump.
48	root	1.146	- added -f eval support to json_xs.
49	root	1.144
50	root	1.143	2.29 Wed Mar 17 02:39:12 CET 2010
51			- fix a memory leak when callbacks set using filter_json_object
52			or filter_json_single_key_object were called (great testcase
53			by Eric Wilhelm).
54
55	root	1.142	2.28 Thu Mar 11 20:30:46 CET 2010
56	root	1.139	- implement our own atof function - perl's can be orders of
57			magnitudes slower than even the system one. on the positive
58			side, ours seems to be more exact in general than perl's.
59			(testcase provided by Tim Meadowcroft).
60	root	1.142	- clarify floating point conversion issues a bit.
61	root	1.138	- update jpsykes csrf article url.
62	root	1.140	- updated benchmark section - JSON::PP became much faster!
63	root	1.138
64	root	1.137	2.27 Thu Jan 7 07:35:08 CET 2010
65	root	1.136	- support relaxed option inside the incremental parser
66	root	1.137	(testcase provided by IKEGAMI via Makamaka).
67	root	1.136
68	root	1.135	2.26 Sat Oct 10 03:26:19 CEST 2009
69			- big integers could become truncated (based on patch
70			by Strobl Anton).
71	root	1.134	- output format change: indent now adds a final newline, which is
72			more expected and more true to the documentation.
73	root	1.132
74	root	1.131	2.25 Sat Aug 8 12:04:41 CEST 2009
75			- the perl debugger completely breaks lvalue subs - try to work
76			around the issue.
77	root	1.130	- ignore RMAGICAL hashes w.r.t. CANONICAL.
78	root	1.128	- try to work around a possible char signedness issue on aix.
79	root	1.129	- require common sense.
80	root	1.128
81	root	1.127	2.24 Sat May 30 08:25:45 CEST 2009
82			- the incremental parser did not update its parse offset
83			pointer correctly when parsing utf8-strings (nicely
84			debugged by Martin Evans).
85			- appending a non-utf8-string to the incremental parser
86			in utf8 mode failed to upgrade the string.
87			- wording of parse error messages has been improved.
88
89	root	1.126	2.232 Sun Feb 22 11:12:25 CET 2009
90	root	1.125	- use an exponential algorithm to extend strings, to
91	root	1.126	help platforms with bad or abysmal==windows memory
92			allocater performance, at the expense of some memory
93	root	1.125	wastage (use shrink to recover this extra memory).
94			(nicely analysed by Dmitry Karasik).
95
96	root	1.124	2.2311 Thu Feb 19 02:12:54 CET 2009
97	root	1.123	- add a section "JSON and ECMAscript" to explain some
98			incompatibilities between the two (problem was noted by
99			various people).
100	root	1.122	- add t/20_faihu.t.
101
102	root	1.121	2.231 Thu Nov 20 04:59:08 CET 2008
103			- work around 5.10.0 magic bugs where manipulating magic values
104			(such as $1) would permanently damage them as perl would
105			ignore the magicalness, by making a full copy of the string,
106			reported by Dmitry Karasik.
107	root	1.125	- work around spurious warnings under older perl 5.8's.
108	root	1.121
109	root	1.120	2.23 Mon Sep 29 05:08:29 CEST 2008
110			- fix a compilation problem when perl is not using char * as, well,
111			char *.
112	root	1.119	- use PL_hexdigit in favour of rolling our own.
113
114	root	1.118	2.2222 Sun Jul 20 18:49:00 CEST 2008
115			- same game again, broken 5.10 finds yet another assertion
116			failure, and the workaround causes additional runtime warnings.
117			Work around the next assertion AND the warning. 5.10 seriously
118			needs to adjust it's attitude against working code.
119
120	root	1.117	2.222 Sat Jul 19 06:15:34 CEST 2008
121			- you work around one -DDEBUGGING assertion bug in perl 5.10
122			just to hit the next one. work around this one, too.
123
124	root	1.116	2.22 Tue Jul 15 13:26:51 CEST 2008
125	root	1.115	- allow higher nesting levels in incremental parser.
126			- error out earlier in some cases in the incremental parser
127			(as suggested by Yuval Kogman).
128			- improve incr-parser test (Yuval Kogman).
129
130	root	1.114	2.21 Tue Jun 3 08:43:23 CEST 2008
131			- (hopefully) work around a perl 5.10 bug with -DDEBUGGING.
132	root	1.112	- remove the experimental status of the incremental parser interface.
133	root	1.111	- move =encoding around again, to avoid bugs with search.cpan.org.
134			when can we finally have utf-8 in pod???
135	root	1.113	- add ->incr_reset method.
136	root	1.111
137	root	1.110	2.2 Wed Apr 16 20:37:25 CEST 2008
138	root	1.109	- lifted the log2 rounding restriction of max_depth and max_size.
139	root	1.107	- make booleans mutable by creating a copy instead of handing out
140			the same scalar (reported by pasha sadri).
141	root	1.105	- added support for incremental json parsing (still EXPERIMENTAL).
142	root	1.103	- implemented and added a json_xs command line utility that can convert
143			from/to a number of serialisation formats - tell me if you need more.
144	root	1.108	- implement allow_unknown/get_allow_unknown methods.
145	root	1.109	- fixed documentation of max_depth w.r.t. higher and equal.
146	root	1.112	- moved down =encoding directive a bit, too much breaks if it's the first
147	root	1.102	pod directive :/.
148	root	1.106	- removed documentation section on other modules, it became somewhat
149			outdated and is nowadays mostly of historical interest.
150	root	1.102
151	root	1.101	2.1 Wed Mar 19 23:23:18 CET 2008
152			- update documentation here and there: add a large section
153			about utf8/latin1/ascii flags, add a security consideration
154			and extend and clarify the JSON and YAML section.
155	root	1.98	- medium speed enhancements when encoding/decoding non-ascii chars.
156	root	1.100	- minor speedup in number encoding case.
157	root	1.92	- extend and clarify the section on incompatibilities
158			between YAML and JSON.
159	root	1.95	- switch to static inline from just inline when using gcc.
160	root	1.94	- add =encoding utf-8 to the manpage, now that perl 5.10 supports it.
161	root	1.100	- fix some issues with UV to JSON conversion of unknown impact.
162	root	1.99	- published the yahoo locals search result used in benchmarks as the
163			original url changes so comparison is impossible.
164	root	1.92
165	root	1.91	2.01 Wed Dec 5 11:40:28 CET 2007
166			- INCOMPATIBLE API CHANGE: to_json and from_json have been
167			renamed to encode_json/decode_json for JSON.pm compatibility.
168			The old functions croak and might be replaced by JSON.pm
169			comaptible versions in some later release.
170
171	root	1.90	2.0 Tue Dec 4 11:30:46 CET 2007
172			- this is supposed to be the first version of JSON::XS
173			compatible with version 2.0+ of the JSON module.
174			Using the JSON module as frontend to JSON::XS should be
175			as fast as using JSON::XS directly, so consider using it
176			instead.
177	root	1.88	- added get_* methods for all "simple" options.
178	root	1.89	- make JSON::XS subclassable.
179	root	1.88
180	root	1.86	1.53 Tue Nov 13 23:58:33 CET 2007
181	root	1.85	- minor doc clarifications.
182			- fixed many doc typos (patch by Thomas L. Shinnick).
183
184	root	1.84	1.52 Mon Oct 15 03:22:06 CEST 2007
185	root	1.83	- remove =encoding pod directive again, it confuses too many pod
186			parsers :/.
187
188	root	1.82	1.51 Sat Oct 13 03:55:56 CEST 2007
189	root	1.81	- encode empty arrays/hashes in a compact way when pretty is enabled.
190	root	1.87	- apparently JSON::XS was used to find some bugs in the
191	root	1.80	JSON_checker testsuite, so add (the corrected) JSON_checker tests to
192			the testsuite.
193			- quite a bit of doc updates/extension.
194	root	1.79	- require 5.8.2, as this seems to be the first unicode-stable version.
195	root	1.78
196	root	1.77	1.5 Tue Aug 28 04:05:38 CEST 2007
197	root	1.74	- add support for tied hashes, based on ideas and testcase by
198			Marcus Holland-Moritz.
199	root	1.75	- implemented relaxed parsing mode where some extensions are being
200			accepted. generation is still JSON-only.
201	root	1.74
202			1.44 Wed Aug 22 01:02:44 CEST 2007
203	root	1.73	- very experimental process-emulation support, slowing everything down.
204			the horribly broken perl threads are still not supported - YMMV.
205
206	root	1.72	1.43 Thu Jul 26 13:26:37 CEST 2007
207			- convert big json numbers exclusively consisting of digits to NV
208			only when there is no loss of precision, otherwise to string.
209
210	root	1.71	1.42 Tue Jul 24 00:51:18 CEST 2007
211			- fix a crash caused by not handling missing array elements
212			(report and testcase by Jay Kuri).
213
214	root	1.70	1.41 Tue Jul 10 18:21:44 CEST 2007
215			- fix compilation with NDEBUG (assert side-effect),
216			affects convert_blessed only.
217	root	1.69	- fix a bug in decode filters calling ENTER; SAVETMPS;
218			one time too often.
219	root	1.70	- catch a typical error in TO_JSON methods.
220	root	1.69	- antique-ised XS.xs again to work with outdated
221			C compilers (windows...).
222
223	root	1.68	1.4 Mon Jul 2 10:06:30 CEST 2007
224	root	1.63	- add convert_blessed setting.
225	root	1.56	- encode did not catch all blessed objects, encoding their
226			contents in most cases. This has been fixed by introducing
227			the allow_blessed setting.
228	root	1.65	- added filter_json_object and filter_json_single_key_object
229			settings that specify a callback to be called when
230	root	1.67	all/specific json objects are encountered.
231	root	1.59	- assume that most object keys are simple ascii words and
232			optimise this case, penalising the general case. This can
233			speed up decoding by 30% in typical cases and gives
234			a smaller and faster perl hash.
235	root	1.58	- implemented simpleminded, optional resource size checking
236			in decode_json.
237	root	1.61	- remove objToJson/jsonToObj aliases, as the next version
238			of JSON will not have them either.
239	root	1.62	- bit the bullet and converted the very simple json object
240			into a more complex one.
241	root	1.64	- work around a bug where perl wrongly claims an integer
242			is not an integer.
243	root	1.65	- unbundle JSON::XS::Boolean into own pm file so Storable
244			and similar modules can resolve the overloading when thawing.
245	root	1.56
246	root	1.55	1.3 Sun Jun 24 01:55:02 CEST 2007
247	root	1.54	- make JSON::XS::true and false special overloaded objects
248			and return those instead of 1 and 0 for those json atoms
249			(JSON::PP compatibility is NOT achieved yet).
250			- add JSON::XS::is_bool predicate to test for those special
251			values.
252	root	1.52	- add a reference to
253			http://jpsykes.com/47/practical-csrf-and-json-security.
254	root	1.60	- removed require 5.8.8 again, it is just not very expert-friendly.
255			Also try to be more compatible with slightly older versions,
256	root	1.54	which are not recommended (because they are buggy).
257	root	1.52
258	root	1.51	1.24 Mon Jun 11 05:40:49 CEST 2007
259	root	1.49	- added informative section on JSON-as-YAML.
260	root	1.51	- get rid of some c99-isms again.
261	root	1.50	- localise dec->cur in decode_str, speeding up
262			string decoding considerably (>15% on my amd64 + gcc).
263			- increased SHORT_STRING_LEN to 16kb: stack space is
264			usually plenty, and this actually saves memory
265	root	1.51	when !shrinking as short strings will fit perfectly.
266	root	1.49
267	root	1.47	1.23 Wed Jun 6 20:13:06 CEST 2007
268	root	1.46	- greatly improved small integer encoding and decoding speed.
269			- implement a number of µ-optimisations.
270	root	1.47	- updated benchmarks.
271	root	1.46
272	root	1.45	1.22 Thu May 24 00:07:25 CEST 2007
273	root	1.42	- require 5.8.8 explicitly as older perls do not seem to offer
274			the required macros.
275	root	1.43	- possibly made it compile on so-called C compilers by microsoft.
276	root	1.42
277	root	1.41	1.21 Wed May 9 18:40:32 CEST 2007
278	root	1.47	- character offset reported for trailing garbage was random.
279	root	1.41
280	root	1.40	1.2 Wed May 9 18:35:01 CEST 2007
281			- decode did not work with magical scalars (doh!).
282	root	1.38	- added latin1 flag to produce JSON texts in the latin1 subset
283			of unicode.
284	root	1.39	- flag trailing garbage as error.
285			- new decode_prefix method that returns the number
286			of characters consumed by a decode.
287	root	1.40	- max octets/char in perls UTF-X is actually 13, not 11,
288			as pointed out by Glenn Linderman.
289			- fixed typoe reported by YAMASHINA Hio.
290	root	1.34
291	root	1.32	1.11 Mon Apr 9 07:05:49 CEST 2007
292			- properly 0-terminate sv's returned by encode to help
293			C libraries that expect that 0 to be there.
294	root	1.31	- partially "port" JSON from C to microsofts fucking broken
295			pseudo-C. They should be burned to the ground for pissing
296			on standards. And I should be stoned for even trying to
297	root	1.32	support this filthy excuse for a c compiler.
298	root	1.6
299	root	1.30	1.1 Wed Apr 4 01:45:00 CEST 2007
300	root	1.28	- clarify documentation (pointed out by Quinn Weaver).
301	root	1.29	- decode_utf8 sometimes did not correctly flag errors,
302			leading to segfaults.
303	root	1.30	- further reduced default nesting depth to 512 due to the test
304			failure by that anonymous "chris" whose e-mail address seems
305			to be impossible to get. Tests on other freebsd systems indicate
306			that this is likely a problem in his/her configuration and not this
307			module.
308			- renamed json => JSON in error messages.
309			- corrected the character offset in some error messages.
310	root	1.28
311	root	1.27	1.01 Sat Mar 31 16:15:40 CEST 2007
312			- do not segfault when from_json/decode gets passed
313			a non-string object (reported by Florian Ragwitz).
314			This has no effect on normal operation.
315
316	root	1.25	1.0 Thu Mar 29 04:43:34 CEST 2007
317			- the long awaited (by me) 1.0 version.
318			- add \0 (JSON::XS::false) and \1 (JSON::XS::true) mappings to JSON
319			true and false.
320	root	1.24	- add some more notes to shrink, as suggested by Alex Efros.
321	root	1.25	- improve testsuite.
322	root	1.26	- halve the default nesting depth limit, to hopefully make it
323	root	1.25	work on Freebsd (unfortunately, the cpan tester did not
324			send me his report, so I cannot ask about the stack limit on fbsd).
325	root	1.24
326	root	1.23	0.8 Mon Mar 26 00:10:48 CEST 2007
327	root	1.21	- fix a memleak when decoding hashes.
328	root	1.20	- export jsonToBj and objToJson as aliases
329			to to_json and from_json, to reduce incompatibilities
330			between JSON/JSON::PC and JSON::XS. (experimental).
331	root	1.21	- implement a maximum nesting depth for both en- and de-coding.
332			- added a security considerations sections.
333	root	1.20
334	root	1.19	0.7 Sun Mar 25 01:46:30 CET 2007
335	root	1.16	- code cleanup.
336			- fix a memory overflow bug when indenting.
337			- pretty-printing now up to 15% faster.
338			- improve decoding speed of strings by
339			up to 50% by specialcasing short strings.
340			- further decoding speedups for strings using
341			lots of \u escapes.
342	root	1.17	- improve utf8 decoding speed for U+80 .. U+7FF.
343	root	1.16
344	root	1.15	0.5 Sat Mar 24 20:41:51 CET 2007
345	root	1.14	- added the UTF-16 encoding example hinted at in previous
346			versions.
347			- minor documentation fixes.
348	root	1.15	- fix a bug in and optimise canonicalising fastpath
349			(reported by Craig Manley).
350			- remove a subtest that breaks with bleadperl (reported
351			by Andreas König).
352	root	1.14
353	root	1.13	0.31 Sat Mar 24 02:14:34 CET 2007
354	root	1.12	- documentation updates.
355	root	1.13	- do some casting to hopefully fix Andreas' problem.
356			- nuke bogus json rpc stuff.
357	root	1.12
358	root	1.11	0.3 Fri Mar 23 19:33:21 CET 2007
359	root	1.5	- remove spurious PApp::Util reference (John McNamara).
360			- adapted lots of tests from other json modules
361			(idea by Chris Carline).
362	root	1.9	- documented mapping from json to perl and vice versa.
363	root	1.11	- improved the documentation by adding more examples.
364	root	1.5	- added short escaping forms, reducing the created
365			json texts a bit.
366			- added shrink flag.
367			- when flag methods are called without enable argument
368			they will by default enable their flag.
369			- considerably improved string encoding speed (at least
370			with gcc 4).
371	root	1.7	- added a test that covers lots of different characters.
372			- clarified some error messages.
373			- error messages now use correct character offset
374			with F_UTF8.
375	root	1.8	- improve the "no bytes" and "no warnings" hacks in
376			case the called functions do... stuff.
377	root	1.9	- croak when encoding to ascii and an out-of-range
378			(non-unicode) codepoint is encountered.
379	root	1.4
380	root	1.3	0.2 Fri Mar 23 00:23:34 CET 2007
381	root	1.109	- the "could not sleep without debugging release".
382	root	1.3	it should basically work now, with many bugs as
383			no production tests have been run yet.
384			- added more testcases.
385			- the expected shitload of bugfixes.
386			- handle utf8 flag correctly in decode.
387			- fix segfault in decoder.
388			- utf8n_to_uvuni sets retlen to -1, but retlen is an
389			unsigned types (argh).
390			- fix decoding of utf-8 strings.
391			- improved error diagnostics.
392			- fix decoding of 'null'.
393			- fix parsing of empty array/hashes
394			- silence warnings when we prepare the croak message.
395
396	root	1.2	0.1 Thu Mar 22 22:13:43 CET 2007
397			- first release, very untested, basically just to claim
398			the namespace.
399	root	1.1
400			0.01 Thu Mar 22 06:08:12 CET 2007
401			- original version; cloned from Convert-Scalar
402