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

Revision history for Perl extension JSON::XS

        - update documentation here and there, add a large section
          about utf8/latin1/ascii flags, add a security consideration.
        - medium speed enhancements when encoding/decoding non-ascii chars.
        - 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.
        - 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 debuggign 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:	1.99
Committed:	Wed Mar 19 13:25:25 2008 UTC (16 years, 2 months ago) by root
Branch:	MAIN
Changes since 1.98:	+2 -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	1.94	- update documentation here and there, add a large section
4	root	1.96	about utf8/latin1/ascii flags, add a security consideration.
5	root	1.98	- medium speed enhancements when encoding/decoding non-ascii chars.
6	root	1.92	- extend and clarify the section on incompatibilities
7			between YAML and JSON.
8	root	1.95	- switch to static inline from just inline when using gcc.
9	root	1.94	- add =encoding utf-8 to the manpage, now that perl 5.10 supports it.
10	root	1.99	- published the yahoo locals search result used in benchmarks as the
11			original url changes so comparison is impossible.
12	root	1.92
13	root	1.91	2.01 Wed Dec 5 11:40:28 CET 2007
14			- INCOMPATIBLE API CHANGE: to_json and from_json have been
15			renamed to encode_json/decode_json for JSON.pm compatibility.
16			The old functions croak and might be replaced by JSON.pm
17			comaptible versions in some later release.
18
19	root	1.90	2.0 Tue Dec 4 11:30:46 CET 2007
20			- this is supposed to be the first version of JSON::XS
21			compatible with version 2.0+ of the JSON module.
22			Using the JSON module as frontend to JSON::XS should be
23			as fast as using JSON::XS directly, so consider using it
24			instead.
25	root	1.88	- added get_* methods for all "simple" options.
26	root	1.89	- make JSON::XS subclassable.
27	root	1.88
28	root	1.86	1.53 Tue Nov 13 23:58:33 CET 2007
29	root	1.85	- minor doc clarifications.
30			- fixed many doc typos (patch by Thomas L. Shinnick).
31
32	root	1.84	1.52 Mon Oct 15 03:22:06 CEST 2007
33	root	1.83	- remove =encoding pod directive again, it confuses too many pod
34			parsers :/.
35
36	root	1.82	1.51 Sat Oct 13 03:55:56 CEST 2007
37	root	1.81	- encode empty arrays/hashes in a compact way when pretty is enabled.
38	root	1.87	- apparently JSON::XS was used to find some bugs in the
39	root	1.80	JSON_checker testsuite, so add (the corrected) JSON_checker tests to
40			the testsuite.
41			- quite a bit of doc updates/extension.
42	root	1.79	- require 5.8.2, as this seems to be the first unicode-stable version.
43	root	1.78
44	root	1.77	1.5 Tue Aug 28 04:05:38 CEST 2007
45	root	1.74	- add support for tied hashes, based on ideas and testcase by
46			Marcus Holland-Moritz.
47	root	1.75	- implemented relaxed parsing mode where some extensions are being
48			accepted. generation is still JSON-only.
49	root	1.74
50			1.44 Wed Aug 22 01:02:44 CEST 2007
51	root	1.73	- very experimental process-emulation support, slowing everything down.
52			the horribly broken perl threads are still not supported - YMMV.
53
54	root	1.72	1.43 Thu Jul 26 13:26:37 CEST 2007
55			- convert big json numbers exclusively consisting of digits to NV
56			only when there is no loss of precision, otherwise to string.
57
58	root	1.71	1.42 Tue Jul 24 00:51:18 CEST 2007
59			- fix a crash caused by not handling missing array elements
60			(report and testcase by Jay Kuri).
61
62	root	1.70	1.41 Tue Jul 10 18:21:44 CEST 2007
63			- fix compilation with NDEBUG (assert side-effect),
64			affects convert_blessed only.
65	root	1.69	- fix a bug in decode filters calling ENTER; SAVETMPS;
66			one time too often.
67	root	1.70	- catch a typical error in TO_JSON methods.
68	root	1.69	- antique-ised XS.xs again to work with outdated
69			C compilers (windows...).
70
71	root	1.68	1.4 Mon Jul 2 10:06:30 CEST 2007
72	root	1.63	- add convert_blessed setting.
73	root	1.56	- encode did not catch all blessed objects, encoding their
74			contents in most cases. This has been fixed by introducing
75			the allow_blessed setting.
76	root	1.65	- added filter_json_object and filter_json_single_key_object
77			settings that specify a callback to be called when
78	root	1.67	all/specific json objects are encountered.
79	root	1.59	- assume that most object keys are simple ascii words and
80			optimise this case, penalising the general case. This can
81			speed up decoding by 30% in typical cases and gives
82			a smaller and faster perl hash.
83	root	1.58	- implemented simpleminded, optional resource size checking
84			in decode_json.
85	root	1.61	- remove objToJson/jsonToObj aliases, as the next version
86			of JSON will not have them either.
87	root	1.62	- bit the bullet and converted the very simple json object
88			into a more complex one.
89	root	1.64	- work around a bug where perl wrongly claims an integer
90			is not an integer.
91	root	1.65	- unbundle JSON::XS::Boolean into own pm file so Storable
92			and similar modules can resolve the overloading when thawing.
93	root	1.56
94	root	1.55	1.3 Sun Jun 24 01:55:02 CEST 2007
95	root	1.54	- make JSON::XS::true and false special overloaded objects
96			and return those instead of 1 and 0 for those json atoms
97			(JSON::PP compatibility is NOT achieved yet).
98			- add JSON::XS::is_bool predicate to test for those special
99			values.
100	root	1.52	- add a reference to
101			http://jpsykes.com/47/practical-csrf-and-json-security.
102	root	1.60	- removed require 5.8.8 again, it is just not very expert-friendly.
103			Also try to be more compatible with slightly older versions,
104	root	1.54	which are not recommended (because they are buggy).
105	root	1.52
106	root	1.51	1.24 Mon Jun 11 05:40:49 CEST 2007
107	root	1.49	- added informative section on JSON-as-YAML.
108	root	1.51	- get rid of some c99-isms again.
109	root	1.50	- localise dec->cur in decode_str, speeding up
110			string decoding considerably (>15% on my amd64 + gcc).
111			- increased SHORT_STRING_LEN to 16kb: stack space is
112			usually plenty, and this actually saves memory
113	root	1.51	when !shrinking as short strings will fit perfectly.
114	root	1.49
115	root	1.47	1.23 Wed Jun 6 20:13:06 CEST 2007
116	root	1.46	- greatly improved small integer encoding and decoding speed.
117			- implement a number of µ-optimisations.
118	root	1.47	- updated benchmarks.
119	root	1.46
120	root	1.45	1.22 Thu May 24 00:07:25 CEST 2007
121	root	1.42	- require 5.8.8 explicitly as older perls do not seem to offer
122			the required macros.
123	root	1.43	- possibly made it compile on so-called C compilers by microsoft.
124	root	1.42
125	root	1.41	1.21 Wed May 9 18:40:32 CEST 2007
126	root	1.47	- character offset reported for trailing garbage was random.
127	root	1.41
128	root	1.40	1.2 Wed May 9 18:35:01 CEST 2007
129			- decode did not work with magical scalars (doh!).
130	root	1.38	- added latin1 flag to produce JSON texts in the latin1 subset
131			of unicode.
132	root	1.39	- flag trailing garbage as error.
133			- new decode_prefix method that returns the number
134			of characters consumed by a decode.
135	root	1.40	- max octets/char in perls UTF-X is actually 13, not 11,
136			as pointed out by Glenn Linderman.
137			- fixed typoe reported by YAMASHINA Hio.
138	root	1.34
139	root	1.32	1.11 Mon Apr 9 07:05:49 CEST 2007
140			- properly 0-terminate sv's returned by encode to help
141			C libraries that expect that 0 to be there.
142	root	1.31	- partially "port" JSON from C to microsofts fucking broken
143			pseudo-C. They should be burned to the ground for pissing
144			on standards. And I should be stoned for even trying to
145	root	1.32	support this filthy excuse for a c compiler.
146	root	1.6
147	root	1.30	1.1 Wed Apr 4 01:45:00 CEST 2007
148	root	1.28	- clarify documentation (pointed out by Quinn Weaver).
149	root	1.29	- decode_utf8 sometimes did not correctly flag errors,
150			leading to segfaults.
151	root	1.30	- further reduced default nesting depth to 512 due to the test
152			failure by that anonymous "chris" whose e-mail address seems
153			to be impossible to get. Tests on other freebsd systems indicate
154			that this is likely a problem in his/her configuration and not this
155			module.
156			- renamed json => JSON in error messages.
157			- corrected the character offset in some error messages.
158	root	1.28
159	root	1.27	1.01 Sat Mar 31 16:15:40 CEST 2007
160			- do not segfault when from_json/decode gets passed
161			a non-string object (reported by Florian Ragwitz).
162			This has no effect on normal operation.
163
164	root	1.25	1.0 Thu Mar 29 04:43:34 CEST 2007
165			- the long awaited (by me) 1.0 version.
166			- add \0 (JSON::XS::false) and \1 (JSON::XS::true) mappings to JSON
167			true and false.
168	root	1.24	- add some more notes to shrink, as suggested by Alex Efros.
169	root	1.25	- improve testsuite.
170	root	1.26	- halve the default nesting depth limit, to hopefully make it
171	root	1.25	work on Freebsd (unfortunately, the cpan tester did not
172			send me his report, so I cannot ask about the stack limit on fbsd).
173	root	1.24
174	root	1.23	0.8 Mon Mar 26 00:10:48 CEST 2007
175	root	1.21	- fix a memleak when decoding hashes.
176	root	1.20	- export jsonToBj and objToJson as aliases
177			to to_json and from_json, to reduce incompatibilities
178			between JSON/JSON::PC and JSON::XS. (experimental).
179	root	1.21	- implement a maximum nesting depth for both en- and de-coding.
180			- added a security considerations sections.
181	root	1.20
182	root	1.19	0.7 Sun Mar 25 01:46:30 CET 2007
183	root	1.16	- code cleanup.
184			- fix a memory overflow bug when indenting.
185			- pretty-printing now up to 15% faster.
186			- improve decoding speed of strings by
187			up to 50% by specialcasing short strings.
188			- further decoding speedups for strings using
189			lots of \u escapes.
190	root	1.17	- improve utf8 decoding speed for U+80 .. U+7FF.
191	root	1.16
192	root	1.15	0.5 Sat Mar 24 20:41:51 CET 2007
193	root	1.14	- added the UTF-16 encoding example hinted at in previous
194			versions.
195			- minor documentation fixes.
196	root	1.15	- fix a bug in and optimise canonicalising fastpath
197			(reported by Craig Manley).
198			- remove a subtest that breaks with bleadperl (reported
199			by Andreas König).
200	root	1.14
201	root	1.13	0.31 Sat Mar 24 02:14:34 CET 2007
202	root	1.12	- documentation updates.
203	root	1.13	- do some casting to hopefully fix Andreas' problem.
204			- nuke bogus json rpc stuff.
205	root	1.12
206	root	1.11	0.3 Fri Mar 23 19:33:21 CET 2007
207	root	1.5	- remove spurious PApp::Util reference (John McNamara).
208			- adapted lots of tests from other json modules
209			(idea by Chris Carline).
210	root	1.9	- documented mapping from json to perl and vice versa.
211	root	1.11	- improved the documentation by adding more examples.
212	root	1.5	- added short escaping forms, reducing the created
213			json texts a bit.
214			- added shrink flag.
215			- when flag methods are called without enable argument
216			they will by default enable their flag.
217			- considerably improved string encoding speed (at least
218			with gcc 4).
219	root	1.7	- added a test that covers lots of different characters.
220			- clarified some error messages.
221			- error messages now use correct character offset
222			with F_UTF8.
223	root	1.8	- improve the "no bytes" and "no warnings" hacks in
224			case the called functions do... stuff.
225	root	1.9	- croak when encoding to ascii and an out-of-range
226			(non-unicode) codepoint is encountered.
227	root	1.4
228	root	1.3	0.2 Fri Mar 23 00:23:34 CET 2007
229			- the "could not sleep without debuggign release".
230			it should basically work now, with many bugs as
231			no production tests have been run yet.
232			- added more testcases.
233			- the expected shitload of bugfixes.
234			- handle utf8 flag correctly in decode.
235			- fix segfault in decoder.
236			- utf8n_to_uvuni sets retlen to -1, but retlen is an
237			unsigned types (argh).
238			- fix decoding of utf-8 strings.
239			- improved error diagnostics.
240			- fix decoding of 'null'.
241			- fix parsing of empty array/hashes
242			- silence warnings when we prepare the croak message.
243
244	root	1.2	0.1 Thu Mar 22 22:13:43 CET 2007
245			- first release, very untested, basically just to claim
246			the namespace.
247	root	1.1
248			0.01 Thu Mar 22 06:08:12 CET 2007
249			- original version; cloned from Convert-Scalar
250