[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
TODO: how to cope with tagged values and standard json decoders
TODO: investigate magic (Eric Brine)
TODO: rfc7464
TODO: Victor Efimov

3.03 Wed Nov 16 20:20:59 CET 2016
        - fix a bug introduced by a perl bug workaround that would cause
          incremental parsing to fail with a sv_chop panic.
        - json_xs: toformat failure error message fixed.
        - json_xs: allow cyclic data structures in CBOR.

3.02 Fri Feb 26 22:45:20 CET 2016
        - allow_nonref now affects booleans (\1, $Types::Serialiser::Boolean)
          as well (reported by Alex Efros).
        - allow literal tabs in strings in relaxed mode (patch by
          lubo.rintel@gooddata.com).
        - support "cbor" format in json_xs tool.
        - support (and fix) calling encode and decode in list context
          (reported by Вадим Власов).
        - work around a bug in older perls crashing when presented
          with shared hash keys (Reini Urban).
        - use stability canary.

3.01 Tue Oct 29 16:55:15 CET 2013
        - backport to perls < 5.18 (reported by Paul Howarth).

3.0  Tue Oct 29 01:35:37 CET 2013
        - implemented an object tagging extension (using the
          Types::Serialiser serialisation protocol).
        - reworked the documentation regarding object serialisation,
          add a new OBJECT SERIALISATION section that explains th
          whole process.
        - new setting: allow_tags.
        - 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:	1.175
Committed:	Wed Nov 16 19:21:53 2016 UTC (7 years, 6 months ago) by root
Branch:	MAIN
CVS Tags:	rel-3_03
Changes since 1.174:	+2 -1 lines
Log Message:	3.03
#	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	1.163	TODO: how to cope with tagged values and standard json decoders
7	root	1.167	TODO: investigate magic (Eric Brine)
8	root	1.170	TODO: rfc7464
9			TODO: Victor Efimov
10	root	1.169
11	root	1.175	3.03 Wed Nov 16 20:20:59 CET 2016
12	root	1.174	- fix a bug introduced by a perl bug workaround that would cause
13	root	1.175	incremental parsing to fail with a sv_chop panic.
14	root	1.171	- json_xs: toformat failure error message fixed.
15	root	1.172	- json_xs: allow cyclic data structures in CBOR.
16	root	1.171
17	root	1.169	3.02 Fri Feb 26 22:45:20 CET 2016
18	root	1.168	- allow_nonref now affects booleans (\1, $Types::Serialiser::Boolean)
19			as well (reported by Alex Efros).
20	root	1.166	- allow literal tabs in strings in relaxed mode (patch by
21			lubo.rintel@gooddata.com).
22	root	1.167	- support "cbor" format in json_xs tool.
23			- support (and fix) calling encode and decode in list context
24			(reported by Вадим Власов).
25	root	1.169	- work around a bug in older perls crashing when presented
26			with shared hash keys (Reini Urban).
27			- use stability canary.
28	root	1.166
29	root	1.162	3.01 Tue Oct 29 16:55:15 CET 2013
30			- backport to perls < 5.18 (reported by Paul Howarth).
31
32	root	1.161	3.0 Tue Oct 29 01:35:37 CET 2013
33			- implemented an object tagging extension (using the
34	root	1.159	Types::Serialiser serialisation protocol).
35			- reworked the documentation regarding object serialisation,
36	root	1.165	add a new OBJECT SERIALISATION section that explains th
37	root	1.159	whole process.
38	root	1.160	- new setting: allow_tags.
39	root	1.158	- switch to Types::Serialiser booleans.
40	root	1.156	- remove to_json/from_json.
41	root	1.159	- other minor improvements to the documentation.
42	root	1.156
43	root	1.155	2.34 Thu May 23 11:30:34 CEST 2013
44			- work around bugs in perl 5.18 breaking more than 100
45			widely used modules, without a fix in sight because
46			p5pers don't care about CPAN anymore.
47	root	1.154	- when canonicalising, only allocate up to 64 hash key
48			pointers on the stack. for larger hashes, use the heap,
49			to avoid using too much stackspace.
50	root	1.155	- discuss the problem with setlocale (reported by a few victims).
51	root	1.154
52	root	1.153	2.33 Wed Aug 1 21:03:52 CEST 2012
53			- internal encode/decode XS wrappers did not expect stack
54			moves caused by callbacks (analyzed and testcase by Jesse Luehrs).
55	root	1.151	- add bencode as to/from option in bin/json_xs.
56	root	1.152	- add -e option to json_xs, and none and string in/out formats.
57	root	1.147
58	root	1.150	2.32 Thu Aug 11 19:06:38 CEST 2011
59			- fix a bug in the initial whitespace accumulation.
60
61	root	1.149	2.31 Wed Jul 27 17:53:05 CEST 2011
62	root	1.153	- don't accumulate initial whitespace in the incremental buffer
63	root	1.149	(this can be useful to allow whitespace-keepalive on a tcp
64			connection without triggering the max_size limit).
65	root	1.148	- properly croak on some invalid inputs that are not strings
66			(e.g. undef) when trying to decode a json text (reported
67			and analyzed by Goro Fuji).
68
69	root	1.146	2.3 Wed Aug 18 01:26:47 CEST 2010
70			- make sure decoder doesn't change the decoding in the incremental
71			parser (testcase provided by Hendrik Schumacher).
72	root	1.144	- applied patch by DaTa for Data::Dumper support in json_xs.
73	root	1.145	- added -t dump support to json_xs, using Data::Dump.
74	root	1.146	- added -f eval support to json_xs.
75	root	1.144
76	root	1.143	2.29 Wed Mar 17 02:39:12 CET 2010
77			- fix a memory leak when callbacks set using filter_json_object
78			or filter_json_single_key_object were called (great testcase
79			by Eric Wilhelm).
80
81	root	1.142	2.28 Thu Mar 11 20:30:46 CET 2010
82	root	1.139	- implement our own atof function - perl's can be orders of
83			magnitudes slower than even the system one. on the positive
84			side, ours seems to be more exact in general than perl's.
85			(testcase provided by Tim Meadowcroft).
86	root	1.142	- clarify floating point conversion issues a bit.
87	root	1.138	- update jpsykes csrf article url.
88	root	1.140	- updated benchmark section - JSON::PP became much faster!
89	root	1.138
90	root	1.137	2.27 Thu Jan 7 07:35:08 CET 2010
91	root	1.136	- support relaxed option inside the incremental parser
92	root	1.137	(testcase provided by IKEGAMI via Makamaka).
93	root	1.136
94	root	1.135	2.26 Sat Oct 10 03:26:19 CEST 2009
95			- big integers could become truncated (based on patch
96			by Strobl Anton).
97	root	1.134	- output format change: indent now adds a final newline, which is
98			more expected and more true to the documentation.
99	root	1.132
100	root	1.131	2.25 Sat Aug 8 12:04:41 CEST 2009
101			- the perl debugger completely breaks lvalue subs - try to work
102			around the issue.
103	root	1.130	- ignore RMAGICAL hashes w.r.t. CANONICAL.
104	root	1.128	- try to work around a possible char signedness issue on aix.
105	root	1.129	- require common sense.
106	root	1.128
107	root	1.127	2.24 Sat May 30 08:25:45 CEST 2009
108			- the incremental parser did not update its parse offset
109			pointer correctly when parsing utf8-strings (nicely
110			debugged by Martin Evans).
111			- appending a non-utf8-string to the incremental parser
112			in utf8 mode failed to upgrade the string.
113			- wording of parse error messages has been improved.
114
115	root	1.126	2.232 Sun Feb 22 11:12:25 CET 2009
116	root	1.125	- use an exponential algorithm to extend strings, to
117	root	1.126	help platforms with bad or abysmal==windows memory
118			allocater performance, at the expense of some memory
119	root	1.125	wastage (use shrink to recover this extra memory).
120			(nicely analysed by Dmitry Karasik).
121
122	root	1.124	2.2311 Thu Feb 19 02:12:54 CET 2009
123	root	1.123	- add a section "JSON and ECMAscript" to explain some
124			incompatibilities between the two (problem was noted by
125			various people).
126	root	1.122	- add t/20_faihu.t.
127
128	root	1.121	2.231 Thu Nov 20 04:59:08 CET 2008
129			- work around 5.10.0 magic bugs where manipulating magic values
130			(such as $1) would permanently damage them as perl would
131			ignore the magicalness, by making a full copy of the string,
132			reported by Dmitry Karasik.
133	root	1.125	- work around spurious warnings under older perl 5.8's.
134	root	1.121
135	root	1.120	2.23 Mon Sep 29 05:08:29 CEST 2008
136			- fix a compilation problem when perl is not using char * as, well,
137			char *.
138	root	1.119	- use PL_hexdigit in favour of rolling our own.
139
140	root	1.118	2.2222 Sun Jul 20 18:49:00 CEST 2008
141			- same game again, broken 5.10 finds yet another assertion
142			failure, and the workaround causes additional runtime warnings.
143			Work around the next assertion AND the warning. 5.10 seriously
144			needs to adjust it's attitude against working code.
145
146	root	1.117	2.222 Sat Jul 19 06:15:34 CEST 2008
147			- you work around one -DDEBUGGING assertion bug in perl 5.10
148			just to hit the next one. work around this one, too.
149
150	root	1.116	2.22 Tue Jul 15 13:26:51 CEST 2008
151	root	1.115	- allow higher nesting levels in incremental parser.
152			- error out earlier in some cases in the incremental parser
153			(as suggested by Yuval Kogman).
154			- improve incr-parser test (Yuval Kogman).
155
156	root	1.114	2.21 Tue Jun 3 08:43:23 CEST 2008
157			- (hopefully) work around a perl 5.10 bug with -DDEBUGGING.
158	root	1.112	- remove the experimental status of the incremental parser interface.
159	root	1.111	- move =encoding around again, to avoid bugs with search.cpan.org.
160			when can we finally have utf-8 in pod???
161	root	1.113	- add ->incr_reset method.
162	root	1.111
163	root	1.110	2.2 Wed Apr 16 20:37:25 CEST 2008
164	root	1.109	- lifted the log2 rounding restriction of max_depth and max_size.
165	root	1.107	- make booleans mutable by creating a copy instead of handing out
166			the same scalar (reported by pasha sadri).
167	root	1.164	- added support for incremental json parsing (still EXPERIMENTAL).
168	root	1.103	- implemented and added a json_xs command line utility that can convert
169			from/to a number of serialisation formats - tell me if you need more.
170	root	1.108	- implement allow_unknown/get_allow_unknown methods.
171	root	1.109	- fixed documentation of max_depth w.r.t. higher and equal.
172	root	1.112	- moved down =encoding directive a bit, too much breaks if it's the first
173	root	1.102	pod directive :/.
174	root	1.106	- removed documentation section on other modules, it became somewhat
175			outdated and is nowadays mostly of historical interest.
176	root	1.102
177	root	1.101	2.1 Wed Mar 19 23:23:18 CET 2008
178			- update documentation here and there: add a large section
179			about utf8/latin1/ascii flags, add a security consideration
180			and extend and clarify the JSON and YAML section.
181	root	1.98	- medium speed enhancements when encoding/decoding non-ascii chars.
182	root	1.100	- minor speedup in number encoding case.
183	root	1.92	- extend and clarify the section on incompatibilities
184			between YAML and JSON.
185	root	1.95	- switch to static inline from just inline when using gcc.
186	root	1.94	- add =encoding utf-8 to the manpage, now that perl 5.10 supports it.
187	root	1.100	- fix some issues with UV to JSON conversion of unknown impact.
188	root	1.99	- published the yahoo locals search result used in benchmarks as the
189			original url changes so comparison is impossible.
190	root	1.92
191	root	1.91	2.01 Wed Dec 5 11:40:28 CET 2007
192			- INCOMPATIBLE API CHANGE: to_json and from_json have been
193			renamed to encode_json/decode_json for JSON.pm compatibility.
194			The old functions croak and might be replaced by JSON.pm
195			comaptible versions in some later release.
196
197	root	1.90	2.0 Tue Dec 4 11:30:46 CET 2007
198			- this is supposed to be the first version of JSON::XS
199			compatible with version 2.0+ of the JSON module.
200			Using the JSON module as frontend to JSON::XS should be
201			as fast as using JSON::XS directly, so consider using it
202			instead.
203	root	1.88	- added get_* methods for all "simple" options.
204	root	1.89	- make JSON::XS subclassable.
205	root	1.88
206	root	1.86	1.53 Tue Nov 13 23:58:33 CET 2007
207	root	1.85	- minor doc clarifications.
208			- fixed many doc typos (patch by Thomas L. Shinnick).
209
210	root	1.84	1.52 Mon Oct 15 03:22:06 CEST 2007
211	root	1.83	- remove =encoding pod directive again, it confuses too many pod
212			parsers :/.
213
214	root	1.82	1.51 Sat Oct 13 03:55:56 CEST 2007
215	root	1.81	- encode empty arrays/hashes in a compact way when pretty is enabled.
216	root	1.87	- apparently JSON::XS was used to find some bugs in the
217	root	1.80	JSON_checker testsuite, so add (the corrected) JSON_checker tests to
218			the testsuite.
219			- quite a bit of doc updates/extension.
220	root	1.79	- require 5.8.2, as this seems to be the first unicode-stable version.
221	root	1.78
222	root	1.77	1.5 Tue Aug 28 04:05:38 CEST 2007
223	root	1.74	- add support for tied hashes, based on ideas and testcase by
224			Marcus Holland-Moritz.
225	root	1.75	- implemented relaxed parsing mode where some extensions are being
226			accepted. generation is still JSON-only.
227	root	1.74
228			1.44 Wed Aug 22 01:02:44 CEST 2007
229	root	1.73	- very experimental process-emulation support, slowing everything down.
230			the horribly broken perl threads are still not supported - YMMV.
231
232	root	1.72	1.43 Thu Jul 26 13:26:37 CEST 2007
233			- convert big json numbers exclusively consisting of digits to NV
234			only when there is no loss of precision, otherwise to string.
235
236	root	1.71	1.42 Tue Jul 24 00:51:18 CEST 2007
237			- fix a crash caused by not handling missing array elements
238			(report and testcase by Jay Kuri).
239
240	root	1.70	1.41 Tue Jul 10 18:21:44 CEST 2007
241			- fix compilation with NDEBUG (assert side-effect),
242			affects convert_blessed only.
243	root	1.69	- fix a bug in decode filters calling ENTER; SAVETMPS;
244			one time too often.
245	root	1.70	- catch a typical error in TO_JSON methods.
246	root	1.69	- antique-ised XS.xs again to work with outdated
247			C compilers (windows...).
248
249	root	1.68	1.4 Mon Jul 2 10:06:30 CEST 2007
250	root	1.63	- add convert_blessed setting.
251	root	1.56	- encode did not catch all blessed objects, encoding their
252			contents in most cases. This has been fixed by introducing
253			the allow_blessed setting.
254	root	1.65	- added filter_json_object and filter_json_single_key_object
255			settings that specify a callback to be called when
256	root	1.67	all/specific json objects are encountered.
257	root	1.59	- assume that most object keys are simple ascii words and
258			optimise this case, penalising the general case. This can
259			speed up decoding by 30% in typical cases and gives
260			a smaller and faster perl hash.
261	root	1.58	- implemented simpleminded, optional resource size checking
262			in decode_json.
263	root	1.61	- remove objToJson/jsonToObj aliases, as the next version
264			of JSON will not have them either.
265	root	1.62	- bit the bullet and converted the very simple json object
266			into a more complex one.
267	root	1.64	- work around a bug where perl wrongly claims an integer
268			is not an integer.
269	root	1.65	- unbundle JSON::XS::Boolean into own pm file so Storable
270			and similar modules can resolve the overloading when thawing.
271	root	1.56
272	root	1.55	1.3 Sun Jun 24 01:55:02 CEST 2007
273	root	1.54	- make JSON::XS::true and false special overloaded objects
274			and return those instead of 1 and 0 for those json atoms
275			(JSON::PP compatibility is NOT achieved yet).
276			- add JSON::XS::is_bool predicate to test for those special
277			values.
278	root	1.52	- add a reference to
279			http://jpsykes.com/47/practical-csrf-and-json-security.
280	root	1.60	- removed require 5.8.8 again, it is just not very expert-friendly.
281			Also try to be more compatible with slightly older versions,
282	root	1.54	which are not recommended (because they are buggy).
283	root	1.52
284	root	1.51	1.24 Mon Jun 11 05:40:49 CEST 2007
285	root	1.49	- added informative section on JSON-as-YAML.
286	root	1.51	- get rid of some c99-isms again.
287	root	1.50	- localise dec->cur in decode_str, speeding up
288			string decoding considerably (>15% on my amd64 + gcc).
289			- increased SHORT_STRING_LEN to 16kb: stack space is
290			usually plenty, and this actually saves memory
291	root	1.51	when !shrinking as short strings will fit perfectly.
292	root	1.49
293	root	1.47	1.23 Wed Jun 6 20:13:06 CEST 2007
294	root	1.46	- greatly improved small integer encoding and decoding speed.
295			- implement a number of µ-optimisations.
296	root	1.47	- updated benchmarks.
297	root	1.46
298	root	1.45	1.22 Thu May 24 00:07:25 CEST 2007
299	root	1.42	- require 5.8.8 explicitly as older perls do not seem to offer
300			the required macros.
301	root	1.43	- possibly made it compile on so-called C compilers by microsoft.
302	root	1.42
303	root	1.41	1.21 Wed May 9 18:40:32 CEST 2007
304	root	1.47	- character offset reported for trailing garbage was random.
305	root	1.41
306	root	1.40	1.2 Wed May 9 18:35:01 CEST 2007
307			- decode did not work with magical scalars (doh!).
308	root	1.38	- added latin1 flag to produce JSON texts in the latin1 subset
309			of unicode.
310	root	1.39	- flag trailing garbage as error.
311			- new decode_prefix method that returns the number
312			of characters consumed by a decode.
313	root	1.40	- max octets/char in perls UTF-X is actually 13, not 11,
314			as pointed out by Glenn Linderman.
315			- fixed typoe reported by YAMASHINA Hio.
316	root	1.34
317	root	1.32	1.11 Mon Apr 9 07:05:49 CEST 2007
318			- properly 0-terminate sv's returned by encode to help
319			C libraries that expect that 0 to be there.
320	root	1.31	- partially "port" JSON from C to microsofts fucking broken
321			pseudo-C. They should be burned to the ground for pissing
322			on standards. And I should be stoned for even trying to
323	root	1.32	support this filthy excuse for a c compiler.
324	root	1.6
325	root	1.30	1.1 Wed Apr 4 01:45:00 CEST 2007
326	root	1.28	- clarify documentation (pointed out by Quinn Weaver).
327	root	1.29	- decode_utf8 sometimes did not correctly flag errors,
328			leading to segfaults.
329	root	1.30	- further reduced default nesting depth to 512 due to the test
330			failure by that anonymous "chris" whose e-mail address seems
331			to be impossible to get. Tests on other freebsd systems indicate
332			that this is likely a problem in his/her configuration and not this
333			module.
334			- renamed json => JSON in error messages.
335			- corrected the character offset in some error messages.
336	root	1.28
337	root	1.27	1.01 Sat Mar 31 16:15:40 CEST 2007
338			- do not segfault when from_json/decode gets passed
339			a non-string object (reported by Florian Ragwitz).
340			This has no effect on normal operation.
341
342	root	1.25	1.0 Thu Mar 29 04:43:34 CEST 2007
343			- the long awaited (by me) 1.0 version.
344			- add \0 (JSON::XS::false) and \1 (JSON::XS::true) mappings to JSON
345			true and false.
346	root	1.24	- add some more notes to shrink, as suggested by Alex Efros.
347	root	1.25	- improve testsuite.
348	root	1.26	- halve the default nesting depth limit, to hopefully make it
349	root	1.25	work on Freebsd (unfortunately, the cpan tester did not
350			send me his report, so I cannot ask about the stack limit on fbsd).
351	root	1.24
352	root	1.23	0.8 Mon Mar 26 00:10:48 CEST 2007
353	root	1.21	- fix a memleak when decoding hashes.
354	root	1.20	- export jsonToBj and objToJson as aliases
355			to to_json and from_json, to reduce incompatibilities
356			between JSON/JSON::PC and JSON::XS. (experimental).
357	root	1.21	- implement a maximum nesting depth for both en- and de-coding.
358			- added a security considerations sections.
359	root	1.20
360	root	1.19	0.7 Sun Mar 25 01:46:30 CET 2007
361	root	1.16	- code cleanup.
362			- fix a memory overflow bug when indenting.
363			- pretty-printing now up to 15% faster.
364			- improve decoding speed of strings by
365			up to 50% by specialcasing short strings.
366			- further decoding speedups for strings using
367			lots of \u escapes.
368	root	1.17	- improve utf8 decoding speed for U+80 .. U+7FF.
369	root	1.16
370	root	1.15	0.5 Sat Mar 24 20:41:51 CET 2007
371	root	1.14	- added the UTF-16 encoding example hinted at in previous
372			versions.
373			- minor documentation fixes.
374	root	1.15	- fix a bug in and optimise canonicalising fastpath
375			(reported by Craig Manley).
376			- remove a subtest that breaks with bleadperl (reported
377			by Andreas König).
378	root	1.14
379	root	1.13	0.31 Sat Mar 24 02:14:34 CET 2007
380	root	1.12	- documentation updates.
381	root	1.13	- do some casting to hopefully fix Andreas' problem.
382			- nuke bogus json rpc stuff.
383	root	1.12
384	root	1.11	0.3 Fri Mar 23 19:33:21 CET 2007
385	root	1.5	- remove spurious PApp::Util reference (John McNamara).
386			- adapted lots of tests from other json modules
387			(idea by Chris Carline).
388	root	1.9	- documented mapping from json to perl and vice versa.
389	root	1.11	- improved the documentation by adding more examples.
390	root	1.5	- added short escaping forms, reducing the created
391			json texts a bit.
392			- added shrink flag.
393			- when flag methods are called without enable argument
394			they will by default enable their flag.
395			- considerably improved string encoding speed (at least
396			with gcc 4).
397	root	1.7	- added a test that covers lots of different characters.
398			- clarified some error messages.
399			- error messages now use correct character offset
400			with F_UTF8.
401	root	1.8	- improve the "no bytes" and "no warnings" hacks in
402			case the called functions do... stuff.
403	root	1.9	- croak when encoding to ascii and an out-of-range
404			(non-unicode) codepoint is encountered.
405	root	1.4
406	root	1.3	0.2 Fri Mar 23 00:23:34 CET 2007
407	root	1.109	- the "could not sleep without debugging release".
408	root	1.3	it should basically work now, with many bugs as
409			no production tests have been run yet.
410			- added more testcases.
411			- the expected shitload of bugfixes.
412			- handle utf8 flag correctly in decode.
413			- fix segfault in decoder.
414			- utf8n_to_uvuni sets retlen to -1, but retlen is an
415			unsigned types (argh).
416			- fix decoding of utf-8 strings.
417			- improved error diagnostics.
418			- fix decoding of 'null'.
419			- fix parsing of empty array/hashes
420			- silence warnings when we prepare the croak message.
421
422	root	1.2	0.1 Thu Mar 22 22:13:43 CET 2007
423			- first release, very untested, basically just to claim
424			the namespace.
425	root	1.1
426			0.01 Thu Mar 22 06:08:12 CET 2007
427			- original version; cloned from Convert-Scalar
428