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

Revision history for Perl extension JSON::XS

TODO: document precision loss for floating point.
        - 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).
        - 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:	1.141
Committed:	Thu Mar 11 17:36:09 2010 UTC (14 years, 2 months ago) by root
Branch:	MAIN
Changes since 1.140:	+1 -0 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	1.141	TODO: document precision loss for floating point.
4	root	1.139	- implement our own atof function - perl's can be orders of
5			magnitudes slower than even the system one. on the positive
6			side, ours seems to be more exact in general than perl's.
7			(testcase provided by Tim Meadowcroft).
8	root	1.138	- update jpsykes csrf article url.
9	root	1.140	- updated benchmark section - JSON::PP became much faster!
10	root	1.138
11	root	1.137	2.27 Thu Jan 7 07:35:08 CET 2010
12	root	1.136	- support relaxed option inside the incremental parser
13	root	1.137	(testcase provided by IKEGAMI via Makamaka).
14	root	1.136
15	root	1.135	2.26 Sat Oct 10 03:26:19 CEST 2009
16			- big integers could become truncated (based on patch
17			by Strobl Anton).
18	root	1.134	- output format change: indent now adds a final newline, which is
19			more expected and more true to the documentation.
20	root	1.132
21	root	1.131	2.25 Sat Aug 8 12:04:41 CEST 2009
22			- the perl debugger completely breaks lvalue subs - try to work
23			around the issue.
24	root	1.130	- ignore RMAGICAL hashes w.r.t. CANONICAL.
25	root	1.128	- try to work around a possible char signedness issue on aix.
26	root	1.129	- require common sense.
27	root	1.128
28	root	1.127	2.24 Sat May 30 08:25:45 CEST 2009
29			- the incremental parser did not update its parse offset
30			pointer correctly when parsing utf8-strings (nicely
31			debugged by Martin Evans).
32			- appending a non-utf8-string to the incremental parser
33			in utf8 mode failed to upgrade the string.
34			- wording of parse error messages has been improved.
35
36	root	1.126	2.232 Sun Feb 22 11:12:25 CET 2009
37	root	1.125	- use an exponential algorithm to extend strings, to
38	root	1.126	help platforms with bad or abysmal==windows memory
39			allocater performance, at the expense of some memory
40	root	1.125	wastage (use shrink to recover this extra memory).
41			(nicely analysed by Dmitry Karasik).
42
43	root	1.124	2.2311 Thu Feb 19 02:12:54 CET 2009
44	root	1.123	- add a section "JSON and ECMAscript" to explain some
45			incompatibilities between the two (problem was noted by
46			various people).
47	root	1.122	- add t/20_faihu.t.
48
49	root	1.121	2.231 Thu Nov 20 04:59:08 CET 2008
50			- work around 5.10.0 magic bugs where manipulating magic values
51			(such as $1) would permanently damage them as perl would
52			ignore the magicalness, by making a full copy of the string,
53			reported by Dmitry Karasik.
54	root	1.125	- work around spurious warnings under older perl 5.8's.
55	root	1.121
56	root	1.120	2.23 Mon Sep 29 05:08:29 CEST 2008
57			- fix a compilation problem when perl is not using char * as, well,
58			char *.
59	root	1.119	- use PL_hexdigit in favour of rolling our own.
60
61	root	1.118	2.2222 Sun Jul 20 18:49:00 CEST 2008
62			- same game again, broken 5.10 finds yet another assertion
63			failure, and the workaround causes additional runtime warnings.
64			Work around the next assertion AND the warning. 5.10 seriously
65			needs to adjust it's attitude against working code.
66
67	root	1.117	2.222 Sat Jul 19 06:15:34 CEST 2008
68			- you work around one -DDEBUGGING assertion bug in perl 5.10
69			just to hit the next one. work around this one, too.
70
71	root	1.116	2.22 Tue Jul 15 13:26:51 CEST 2008
72	root	1.115	- allow higher nesting levels in incremental parser.
73			- error out earlier in some cases in the incremental parser
74			(as suggested by Yuval Kogman).
75			- improve incr-parser test (Yuval Kogman).
76
77	root	1.114	2.21 Tue Jun 3 08:43:23 CEST 2008
78			- (hopefully) work around a perl 5.10 bug with -DDEBUGGING.
79	root	1.112	- remove the experimental status of the incremental parser interface.
80	root	1.111	- move =encoding around again, to avoid bugs with search.cpan.org.
81			when can we finally have utf-8 in pod???
82	root	1.113	- add ->incr_reset method.
83	root	1.111
84	root	1.110	2.2 Wed Apr 16 20:37:25 CEST 2008
85	root	1.109	- lifted the log2 rounding restriction of max_depth and max_size.
86	root	1.107	- make booleans mutable by creating a copy instead of handing out
87			the same scalar (reported by pasha sadri).
88	root	1.105	- added support for incremental json parsing (still EXPERIMENTAL).
89	root	1.103	- implemented and added a json_xs command line utility that can convert
90			from/to a number of serialisation formats - tell me if you need more.
91	root	1.108	- implement allow_unknown/get_allow_unknown methods.
92	root	1.109	- fixed documentation of max_depth w.r.t. higher and equal.
93	root	1.112	- moved down =encoding directive a bit, too much breaks if it's the first
94	root	1.102	pod directive :/.
95	root	1.106	- removed documentation section on other modules, it became somewhat
96			outdated and is nowadays mostly of historical interest.
97	root	1.102
98	root	1.101	2.1 Wed Mar 19 23:23:18 CET 2008
99			- update documentation here and there: add a large section
100			about utf8/latin1/ascii flags, add a security consideration
101			and extend and clarify the JSON and YAML section.
102	root	1.98	- medium speed enhancements when encoding/decoding non-ascii chars.
103	root	1.100	- minor speedup in number encoding case.
104	root	1.92	- extend and clarify the section on incompatibilities
105			between YAML and JSON.
106	root	1.95	- switch to static inline from just inline when using gcc.
107	root	1.94	- add =encoding utf-8 to the manpage, now that perl 5.10 supports it.
108	root	1.100	- fix some issues with UV to JSON conversion of unknown impact.
109	root	1.99	- published the yahoo locals search result used in benchmarks as the
110			original url changes so comparison is impossible.
111	root	1.92
112	root	1.91	2.01 Wed Dec 5 11:40:28 CET 2007
113			- INCOMPATIBLE API CHANGE: to_json and from_json have been
114			renamed to encode_json/decode_json for JSON.pm compatibility.
115			The old functions croak and might be replaced by JSON.pm
116			comaptible versions in some later release.
117
118	root	1.90	2.0 Tue Dec 4 11:30:46 CET 2007
119			- this is supposed to be the first version of JSON::XS
120			compatible with version 2.0+ of the JSON module.
121			Using the JSON module as frontend to JSON::XS should be
122			as fast as using JSON::XS directly, so consider using it
123			instead.
124	root	1.88	- added get_* methods for all "simple" options.
125	root	1.89	- make JSON::XS subclassable.
126	root	1.88
127	root	1.86	1.53 Tue Nov 13 23:58:33 CET 2007
128	root	1.85	- minor doc clarifications.
129			- fixed many doc typos (patch by Thomas L. Shinnick).
130
131	root	1.84	1.52 Mon Oct 15 03:22:06 CEST 2007
132	root	1.83	- remove =encoding pod directive again, it confuses too many pod
133			parsers :/.
134
135	root	1.82	1.51 Sat Oct 13 03:55:56 CEST 2007
136	root	1.81	- encode empty arrays/hashes in a compact way when pretty is enabled.
137	root	1.87	- apparently JSON::XS was used to find some bugs in the
138	root	1.80	JSON_checker testsuite, so add (the corrected) JSON_checker tests to
139			the testsuite.
140			- quite a bit of doc updates/extension.
141	root	1.79	- require 5.8.2, as this seems to be the first unicode-stable version.
142	root	1.78
143	root	1.77	1.5 Tue Aug 28 04:05:38 CEST 2007
144	root	1.74	- add support for tied hashes, based on ideas and testcase by
145			Marcus Holland-Moritz.
146	root	1.75	- implemented relaxed parsing mode where some extensions are being
147			accepted. generation is still JSON-only.
148	root	1.74
149			1.44 Wed Aug 22 01:02:44 CEST 2007
150	root	1.73	- very experimental process-emulation support, slowing everything down.
151			the horribly broken perl threads are still not supported - YMMV.
152
153	root	1.72	1.43 Thu Jul 26 13:26:37 CEST 2007
154			- convert big json numbers exclusively consisting of digits to NV
155			only when there is no loss of precision, otherwise to string.
156
157	root	1.71	1.42 Tue Jul 24 00:51:18 CEST 2007
158			- fix a crash caused by not handling missing array elements
159			(report and testcase by Jay Kuri).
160
161	root	1.70	1.41 Tue Jul 10 18:21:44 CEST 2007
162			- fix compilation with NDEBUG (assert side-effect),
163			affects convert_blessed only.
164	root	1.69	- fix a bug in decode filters calling ENTER; SAVETMPS;
165			one time too often.
166	root	1.70	- catch a typical error in TO_JSON methods.
167	root	1.69	- antique-ised XS.xs again to work with outdated
168			C compilers (windows...).
169
170	root	1.68	1.4 Mon Jul 2 10:06:30 CEST 2007
171	root	1.63	- add convert_blessed setting.
172	root	1.56	- encode did not catch all blessed objects, encoding their
173			contents in most cases. This has been fixed by introducing
174			the allow_blessed setting.
175	root	1.65	- added filter_json_object and filter_json_single_key_object
176			settings that specify a callback to be called when
177	root	1.67	all/specific json objects are encountered.
178	root	1.59	- assume that most object keys are simple ascii words and
179			optimise this case, penalising the general case. This can
180			speed up decoding by 30% in typical cases and gives
181			a smaller and faster perl hash.
182	root	1.58	- implemented simpleminded, optional resource size checking
183			in decode_json.
184	root	1.61	- remove objToJson/jsonToObj aliases, as the next version
185			of JSON will not have them either.
186	root	1.62	- bit the bullet and converted the very simple json object
187			into a more complex one.
188	root	1.64	- work around a bug where perl wrongly claims an integer
189			is not an integer.
190	root	1.65	- unbundle JSON::XS::Boolean into own pm file so Storable
191			and similar modules can resolve the overloading when thawing.
192	root	1.56
193	root	1.55	1.3 Sun Jun 24 01:55:02 CEST 2007
194	root	1.54	- make JSON::XS::true and false special overloaded objects
195			and return those instead of 1 and 0 for those json atoms
196			(JSON::PP compatibility is NOT achieved yet).
197			- add JSON::XS::is_bool predicate to test for those special
198			values.
199	root	1.52	- add a reference to
200			http://jpsykes.com/47/practical-csrf-and-json-security.
201	root	1.60	- removed require 5.8.8 again, it is just not very expert-friendly.
202			Also try to be more compatible with slightly older versions,
203	root	1.54	which are not recommended (because they are buggy).
204	root	1.52
205	root	1.51	1.24 Mon Jun 11 05:40:49 CEST 2007
206	root	1.49	- added informative section on JSON-as-YAML.
207	root	1.51	- get rid of some c99-isms again.
208	root	1.50	- localise dec->cur in decode_str, speeding up
209			string decoding considerably (>15% on my amd64 + gcc).
210			- increased SHORT_STRING_LEN to 16kb: stack space is
211			usually plenty, and this actually saves memory
212	root	1.51	when !shrinking as short strings will fit perfectly.
213	root	1.49
214	root	1.47	1.23 Wed Jun 6 20:13:06 CEST 2007
215	root	1.46	- greatly improved small integer encoding and decoding speed.
216			- implement a number of µ-optimisations.
217	root	1.47	- updated benchmarks.
218	root	1.46
219	root	1.45	1.22 Thu May 24 00:07:25 CEST 2007
220	root	1.42	- require 5.8.8 explicitly as older perls do not seem to offer
221			the required macros.
222	root	1.43	- possibly made it compile on so-called C compilers by microsoft.
223	root	1.42
224	root	1.41	1.21 Wed May 9 18:40:32 CEST 2007
225	root	1.47	- character offset reported for trailing garbage was random.
226	root	1.41
227	root	1.40	1.2 Wed May 9 18:35:01 CEST 2007
228			- decode did not work with magical scalars (doh!).
229	root	1.38	- added latin1 flag to produce JSON texts in the latin1 subset
230			of unicode.
231	root	1.39	- flag trailing garbage as error.
232			- new decode_prefix method that returns the number
233			of characters consumed by a decode.
234	root	1.40	- max octets/char in perls UTF-X is actually 13, not 11,
235			as pointed out by Glenn Linderman.
236			- fixed typoe reported by YAMASHINA Hio.
237	root	1.34
238	root	1.32	1.11 Mon Apr 9 07:05:49 CEST 2007
239			- properly 0-terminate sv's returned by encode to help
240			C libraries that expect that 0 to be there.
241	root	1.31	- partially "port" JSON from C to microsofts fucking broken
242			pseudo-C. They should be burned to the ground for pissing
243			on standards. And I should be stoned for even trying to
244	root	1.32	support this filthy excuse for a c compiler.
245	root	1.6
246	root	1.30	1.1 Wed Apr 4 01:45:00 CEST 2007
247	root	1.28	- clarify documentation (pointed out by Quinn Weaver).
248	root	1.29	- decode_utf8 sometimes did not correctly flag errors,
249			leading to segfaults.
250	root	1.30	- further reduced default nesting depth to 512 due to the test
251			failure by that anonymous "chris" whose e-mail address seems
252			to be impossible to get. Tests on other freebsd systems indicate
253			that this is likely a problem in his/her configuration and not this
254			module.
255			- renamed json => JSON in error messages.
256			- corrected the character offset in some error messages.
257	root	1.28
258	root	1.27	1.01 Sat Mar 31 16:15:40 CEST 2007
259			- do not segfault when from_json/decode gets passed
260			a non-string object (reported by Florian Ragwitz).
261			This has no effect on normal operation.
262
263	root	1.25	1.0 Thu Mar 29 04:43:34 CEST 2007
264			- the long awaited (by me) 1.0 version.
265			- add \0 (JSON::XS::false) and \1 (JSON::XS::true) mappings to JSON
266			true and false.
267	root	1.24	- add some more notes to shrink, as suggested by Alex Efros.
268	root	1.25	- improve testsuite.
269	root	1.26	- halve the default nesting depth limit, to hopefully make it
270	root	1.25	work on Freebsd (unfortunately, the cpan tester did not
271			send me his report, so I cannot ask about the stack limit on fbsd).
272	root	1.24
273	root	1.23	0.8 Mon Mar 26 00:10:48 CEST 2007
274	root	1.21	- fix a memleak when decoding hashes.
275	root	1.20	- export jsonToBj and objToJson as aliases
276			to to_json and from_json, to reduce incompatibilities
277			between JSON/JSON::PC and JSON::XS. (experimental).
278	root	1.21	- implement a maximum nesting depth for both en- and de-coding.
279			- added a security considerations sections.
280	root	1.20
281	root	1.19	0.7 Sun Mar 25 01:46:30 CET 2007
282	root	1.16	- code cleanup.
283			- fix a memory overflow bug when indenting.
284			- pretty-printing now up to 15% faster.
285			- improve decoding speed of strings by
286			up to 50% by specialcasing short strings.
287			- further decoding speedups for strings using
288			lots of \u escapes.
289	root	1.17	- improve utf8 decoding speed for U+80 .. U+7FF.
290	root	1.16
291	root	1.15	0.5 Sat Mar 24 20:41:51 CET 2007
292	root	1.14	- added the UTF-16 encoding example hinted at in previous
293			versions.
294			- minor documentation fixes.
295	root	1.15	- fix a bug in and optimise canonicalising fastpath
296			(reported by Craig Manley).
297			- remove a subtest that breaks with bleadperl (reported
298			by Andreas König).
299	root	1.14
300	root	1.13	0.31 Sat Mar 24 02:14:34 CET 2007
301	root	1.12	- documentation updates.
302	root	1.13	- do some casting to hopefully fix Andreas' problem.
303			- nuke bogus json rpc stuff.
304	root	1.12
305	root	1.11	0.3 Fri Mar 23 19:33:21 CET 2007
306	root	1.5	- remove spurious PApp::Util reference (John McNamara).
307			- adapted lots of tests from other json modules
308			(idea by Chris Carline).
309	root	1.9	- documented mapping from json to perl and vice versa.
310	root	1.11	- improved the documentation by adding more examples.
311	root	1.5	- added short escaping forms, reducing the created
312			json texts a bit.
313			- added shrink flag.
314			- when flag methods are called without enable argument
315			they will by default enable their flag.
316			- considerably improved string encoding speed (at least
317			with gcc 4).
318	root	1.7	- added a test that covers lots of different characters.
319			- clarified some error messages.
320			- error messages now use correct character offset
321			with F_UTF8.
322	root	1.8	- improve the "no bytes" and "no warnings" hacks in
323			case the called functions do... stuff.
324	root	1.9	- croak when encoding to ascii and an out-of-range
325			(non-unicode) codepoint is encountered.
326	root	1.4
327	root	1.3	0.2 Fri Mar 23 00:23:34 CET 2007
328	root	1.109	- the "could not sleep without debugging release".
329	root	1.3	it should basically work now, with many bugs as
330			no production tests have been run yet.
331			- added more testcases.
332			- the expected shitload of bugfixes.
333			- handle utf8 flag correctly in decode.
334			- fix segfault in decoder.
335			- utf8n_to_uvuni sets retlen to -1, but retlen is an
336			unsigned types (argh).
337			- fix decoding of utf-8 strings.
338			- improved error diagnostics.
339			- fix decoding of 'null'.
340			- fix parsing of empty array/hashes
341			- silence warnings when we prepare the croak message.
342
343	root	1.2	0.1 Thu Mar 22 22:13:43 CET 2007
344			- first release, very untested, basically just to claim
345			the namespace.
346	root	1.1
347			0.01 Thu Mar 22 06:08:12 CET 2007
348			- original version; cloned from Convert-Scalar
349