Revision history for Perl extension DateTime::Format::Natural.

1.04_01  2017-03-03  <schubiger@cpan.org>

 - New supported format: beginning/end of last month.
   [rt #120436 - Shawn M. Moore]

1.04  2016-07-24  <schubiger@cpan.org>

 - Merged development version to stable.

1.03_02  2016-07-15  <schubiger@cpan.org>

 - Document format: ISO 8601 <date>T<time>.

 - Amend introduction text for examples section.

 - List Ricardo Signes in credits.

1.03_01  2016-07-09  <schubiger@cpan.org>

 - New supported format: ISO 8601 <date>T<time>.
   [rt #115737 - Ricardo Signes]

1.03  2015-08-02  <schubiger@cpan.org>

 - Merged development version to stable.

1.02_03  2015-07-21  <schubiger@cpan.org>

 - Suggestions for simple documentation improvements.
   [rt #98634 - Tim Bunce]

1.02_02  2015-06-05  <schubiger@cpan.org>

 - Add encoding directive to POD. [rt #105000 - Debian Perl Group]

1.02_01  2014-02-09  <schubiger@cpan.org>

 - Add metadata repository link. [David Steinbrunner]

1.02  2013-04-30  <schubiger@cpan.org>

 - Merged development version to stable.

1.01_05  2013-04-01  <schubiger@cpan.org>

 - Parse and extract relative durations in reversed order.

 - Document reversed relative durations under examples.

 - Treat for <count> <unit> grammar expressions as durations.

 - Refine gathering idents for from <count> to <count> durations.

 - Use rightmost matching token on left side of duration as type.

 - Split duration string only if accompanied by whitespace.

 - Strengthen matching duration substrings against regexes.

 - Extract regex captured punctuation marks in loop body.

 - Undo some loop indentation in test files.

 - Reorder version number variable in Calc class.

1.01_04  2013-01-17  <schubiger@cpan.org>

 - Concatenate duration expression chunks with separator.

 - Merge calls for extracting duration expressions.

 - Distinguish between expression types when finalizing.

 - Simplify finalizing date/grammar duration expressions.

 - Test that expressions do not overlap with duration ones.

 - Strip timespan separators from extract string.

 - Normalize whitespace of duration expressions.

 - Keep duration extract methods private.

 - Don't declare a plan for extract-expression tests.

 - Enhance comment in extract-expression test file.

1.01_03  2012-12-06  <schubiger@cpan.org>

 - Fix fatal error from extract tests on 5.{8.9,10.0}.

 - Display extracted strings for dateparse.

1.01_02  2012-11-29  <schubiger@cpan.org>

 - Extract relative and rewritten duration expressions.

 - Check parsing of extracted expressions.

1.01_01  2012-10-25  <schubiger@cpan.org>

 - Narrow scope of variables in _extract_expressions().

 - Improve finalizing duration expressions.

1.01  2012-09-07  <schubiger@cpan.org>

 - Merged development version to stable.

1.00_02  2012-09-01  <schubiger@cpan.org>

 - Duplicate and extend types only for grammar expansion.

 - Initialize subscript variable.

 - Remove trailing semicolon in do block.

1.00_01  2012-07-21  <schubiger@cpan.org>

 - Extract expanded expressions and add a test.

1.00  2012-05-30  <schubiger@cpan.org>

 - Merged development version to stable.

 - Replace use of constant pragma with boolean.

0.99_01  2012-05-20  <schubiger@cpan.org>

 - Introduce ::Expand which handles expanding grammar.

 - Enhance main grammar loop to enable grammar expansion.

 - Include count of tokens for expanded grammar in lookup map.

 - Add test file for expansions.

 - Make the truncate_to grammar option an array reference.

 - Truncate values after each worker method called.

 - Move truncating code to a separate method.

 - Require Clone as prerequisite.

 - Mention expansion of grammar in docs.

0.99  2012-04-26  <schubiger@cpan.org>

 - Merged development version to stable.

0.98_03  2012-04-22  <schubiger@cpan.org>

 - Check if daytime exists in _daytime_variant().

 - Load modules in test files where missing.

0.98_02  2012-04-22  <schubiger@cpan.org>

 - Add validation rules to allow passing DateTime::TimeZone
   objects. [Roman Filippov]

 - Test providing a DateTime::TimeZone object.

 - Load DateTime::TimeZone explicitly.

 - Test validation of constructor arguments.

 - List Roman Filippov in credits.

0.98_01  2012-01-01  <schubiger@cpan.org>

 - Mention and link to dateparse in the See also section.

0.98  2011-10-29  <schubiger@cpan.org>

 - Merged development version to stable.

0.97_02  2011-10-27  <schubiger@cpan.org>

 - Strip leading and trailing spaces from input strings.

0.97_01  2011-10-25  <schubiger@cpan.org>

 - Support parsing timestamp. [Xiao Yafeng]

0.97  2011-08-17  <schubiger@cpan.org>

 - Merged development version to stable.

0.96_04  2011-08-16  <schubiger@cpan.org>

 - Check that the datetime string for dateparse has at most
   two chunks (date/time); also require DateTime.

 - Elaborate on the format of dateparse's datetime string.

0.96_03  2011-08-13  <schubiger@cpan.org>

 - Add the datetime switch to dateparse and document it.

 - Print dateparse's dates formatted according to ISO 8601.

0.96_02  2011-08-10  <schubiger@cpan.org>

 - Revert truncating of <count> <unit> ago formats.

 - Add Xiao Yafeng to credits.

0.96_01  2011-08-01  <schubiger@cpan.org>

 - New supported format: today <count> <unit> ago. [Xiao Yafeng]

 - Truncate for this and other ago formats to day if there is
   no time component in order to produce more consistent results.

 - Add new and adjust existing regular tests for these formats;
   moreover, complete the list of parse failure tests.

 - List the added grammar in the documentation.

0.96  2011-06-01  <schubiger@cpan.org>

 - Merged development version to stable.

0.95_03  2011-05-30  <schubiger@cpan.org>

 - Add the extract switch to dateparse and document it.

 - Change dateparse's prefer_future option to be not negatable.

0.95_02  2011-05-28  <schubiger@cpan.org>

 - Reorder the nested extract loop iterating through the grammar
   entries to process only one subentry for all matching tokens.

 - Move the check for a date when extracting expressions to a method.

 - Add assert tests for extract_datetime(): one for the context
   dependant return and another for the nested extract loop fix.

 - Improve code visually of the parse success and failure test files.

0.95_01  2011-05-19  <schubiger@cpan.org>

 - Do no longer recommend Test::Pod and Test::Pod::Coverage.

 - Use quantifier which matches 1 or more times when extracting
   subroutine or method names.

 - Assign a list instead of pushing a string for time entries.

0.95  2011-05-14  <schubiger@cpan.org>

 - Merged development version to stable.

0.94_04  2011-05-11  <schubiger@cpan.org>

 - New supported format: <monthday> <month> <year> <time am/pm>.
   [rt #67780 - Colm Dougan]

 - Conditionally rewrite date strings, currently ones with an 'at'
   followed by a time or daytime (e.g., noon).

 - Place the rewrite data in the grammar class; add an accessor.

 - Adapt the grammar by merging or removing now superfluous entries.

 - Mention rewriting by use of a comment in the grammar class.

 - Rewrite all patterns and refine handling punctuation marks
   when extracting parsable expressions; add tests.

 - Make generation of time entries for tests capable of processing
   the {at} placeholder and use it within the test strings.

 - Test parsing of date strings with rewritten time precision.

0.94_03  2011-05-03  <schubiger@cpan.org>

 - Rename the aliases class to the more generic name rewrite.

 - Parse times with AM/PM at word boundary separated by a space
   (through removing the space before parsing).
   [rt #67561 - Dave Rolsky]

 - Purge now unused grammar entries and consolidate tests.

0.94_02  2011-04-14  <schubiger@cpan.org>

 - Parse and document formatted dates with an abbreviated month name
   in the middle; add a regular and a case related success test.
   [rt #67395 - Rod Taylor]

 - Extend the format regex accordingly and fix partly broken
   checking for a formatted date boundary.

 - Add assert tests for the fixed formatted date boundary check
   and new month name validation.

0.94_01  2011-04-07  <schubiger@cpan.org>

 - Rewrite aliases when extracting parsable expressions; amend
   an extract test. [Colm Dougan]

 - Add, test and document another weekday alias for thursday.
   [Colm Dougan]

 - Remove commas from date string now before rewriting aliases.

 - Test that commas are filtered for aliases.

0.94  2011-04-02  <schubiger@cpan.org>

 - Merged development version to stable.

0.93_02  2011-03-31  <schubiger@cpan.org>

 - Set month and implicit day explicitly to avoid overlap parse
   failures; add a regression test. [reported by Chifung Fan]

 - Keep the minute or higher precision requirement when extracting
   one token time expressions, but undo the grammar change.

 - Test one token time expression with precision in hour.

 - Use more descriptive variable names within the extract class.

0.93_01  2011-03-21  <schubiger@cpan.org>

 - Introduce a class to extract parsable expressions from strings.
   [suggested by Colm Dougan]

 - Add and document the extract_datetime() method.

 - Test extracting parsable expressions.

 - Require precision in hour or higher for one token time expressions,
   otherwise extracting expressions would be impeded.

 - Move the formatted string regex to the grammar class;
   furthermore, move the according checks to the formatted class.

0.93  2011-02-04  <schubiger@cpan.org>

 - Merged development version to stable.

0.92_02  2011-01-25  <schubiger@cpan.org>

 - New supported format: <month> <monthday>, <year> <time am/pm>.
   [rt #65072 - Dave Rolsky]

 - Sort weekdays and months metadata arrays in ascending order.

 - Purge unused hour precisions from truncate_to grammar options.

0.92_01  2011-01-23  <schubiger@cpan.org>

 - Place the constant.pm segmentation fault workaround comment
   at the top of the grammar class.

0.92  2011-01-14  <schubiger@cpan.org>

 - Merged development version to stable.

0.91_04  2011-01-12  <schubiger@cpan.org>

 - Merge _daytime_in_the_variant() into _daytime().

 - Document for times that precision in seconds may be applied.

0.91_03  2011-01-09  <schubiger@cpan.org>

 - Allow for time regexes to match times with precision in seconds.

 - Handle these times in _at_time() and adjust the according
   post-processed truncate_to options within the grammar entries.

 - Remove _time_full() and call _at_time() instead.

 - Conditionally truncate to units and remove unit assignments of zero.

 - When advancing to future time, omit checking for modified minute.

 - Insert and process placeholders for test entries with variable units.

0.91_02  2010-12-07  <schubiger@cpan.org>

 - New supported format: <weekday> <daytime>.
   [rt #63438 - Tim Esselens]

 - New supported format: <year> <month> <monthday>.
   [rt #63429 - Rod Taylor]

 - Rename the dayframe grammar keywords.

0.91_01  2010-12-06  <schubiger@cpan.org>

 - Enhance parsing <token(s)> <count> combined relative durations; add
   some regular tests and others for durations expected to succeed.

 - Document the new supported kind of durations.

 - Move the duration patterns and other metadata to the grammar
   class and add a nested duration class with the duration checks.

 - Invoke the duration checks through a function wrapper.

 - Don't parse ambiguous <time>, <monthday> and <month> expressions.

 - Shrink date strings in parse_datetime_duration() and fail;
   reword documentation accordingly.

 - Skip documentation tests for non-release testing.

 - Test that parse_datetime_duration() shrinks and fails.

 - Find module files and names for tests where necessary.

 - Bundle common exportable test routines/data with a tag.

 - Save the missing trace for present durations.

 - Check with anchored regexp tokens in _advance_future().

0.91  2010-11-01  <schubiger@cpan.org>

 - Merged development version to stable.

0.90_04  2010-10-30  <schubiger@cpan.org>

 - New supported formats: <time> <month> <monthday> and
   <time> AM/PM <month> <monthday>. [rt #62164 - Vladimir Marek]

 - Add support for the <time am/pm> <month> <monthday> format.

 - Test and document the new formats.

0.90_03  2010-10-28  <schubiger@cpan.org>

 - New supported formats: <monthday> <month> <time>,
   <monthday> <month> <time> AM/PM and <month> <monthday>
   <time> AM/PM. [rt #62164 - Vladimir Marek]

 - Add support for the <monthday> <month> <time am/pm> format.

 - Test and document the new formats.

0.90_02  2010-10-22  <schubiger@cpan.org>

 - New supported formats: <variant> <weekday> <time> AM/PM and
   <time> AM/PM <variant> <weekday>. [rt #62164 - Vladimir Marek]

 - Add support for the <variant> <weekday> <time am/pm> format.

 - Test and document the new formats.

 - Record the grammar keyword for each valid expression parsed.

 - Describe trace()'s purpose and its inclusion of a grammar keyword.

 - Insert expected grammar keywords in 14-trace.t.

0.90_01  2010-10-13  <schubiger@cpan.org>

 - Fix reference to the Calc class in the documentation of trace().

 - Adjust phrasing of parse_datetime_duration()'s documentation.

 - Correct spelling of the examples description.

0.90  2010-10-04  <schubiger@cpan.org>

 - Merged development version to stable.

0.89_02  2010-09-29  <schubiger@cpan.org>

 - Create the metadata package name string through joining it.

 - Provide a generated list of values to _Day_of_Week().

0.89_01  2010-09-21  <schubiger@cpan.org>

 - Reword dateparse's help screen to be more descriptive.

 - List Getopt::Long as prerequisite.

0.89  2010-08-05  <schubiger@cpan.org>

 - Merged development version to stable.

0.88_02  2010-07-29  <schubiger@cpan.org>

 - Replace calling of _valid_date() in _count_weekday_variant_month()
   with _check_date(), because errors are handled separate.

 - Use more descriptive variable names in _parse_formatted_ymd().

 - Minor indentation and code tweaks.

0.88_01  2010-07-18  <schubiger@cpan.org>

 - Check if suffixes used for ordinal numbers are suitable.

 - Test that invalid ordinal numbers fail and valid ones succeed.

 - Add a test file for the tests expected to succeed.

 - Verify for parse failures their errors emitted.

 - While processing grammar expressions, save all captured values
   in order to pass the extra ones to the extended checks.

 - Improve whitespace of regular expressions handling durations.

0.88  2010-06-16  <schubiger@cpan.org>

 - Merged development version to stable.

0.87_03  2010-06-12  <schubiger@cpan.org>

 - Fix broken use_ok() test for the Calc module.

 - Insert some missing examples in the grammar documentation.

0.87_02  2010-06-09  <schubiger@cpan.org>

 - Strengthen the check for invalid units of prefixed dates.

 - Add a test file for parse asserts.

 - Rename Base.pm to Calc.pm and adjust trace tests.

 - Reword the according abstract and description.

 - Document where arguments to dateparse's switches are required.

 - Allow dateparse to handle the language code in uppercase.

0.87_01  2010-06-06  <schubiger@cpan.org>

 - Match case-insensitively in the language option check.

 - Require (and not use) the grammar class in runtime eval.

 - Purge the remains of the formatted instance data member.

 - Delete some instance data through hash slices.

 - Convert a few non-option identifiers to lowercase.

0.87  2010-05-29  <schubiger@cpan.org>

 - Merged development version to stable.

0.86_02  2010-05-27  <schubiger@cpan.org>

 - Emit an error for 0 AM/PM suggesting to use 12 as zero.

 - Add tests for this extended check failure.

 - Adjust related prefer_future tests to make them pass.

 - When verifying that extended checks fail, call _get_error()
   to see whether it returns an error as expected.

 - Reset in _unset_error() with undef instead of empty string.

0.86_01  2010-05-18  <schubiger@cpan.org>

 - Introduce and use two flag handlers for AM/PM time values.
   [rt #56955 - Andrew Sterling Hanenkamp]

 - Assert that these values pass the extended meridiem check.

 - Split implicit matching of time only from grammar entries
   with an optional AM suffix.

 - Add tests for 12 AM/PM and the splitted grammar entries
   (including prefer_future ones).

 - Test that invalid meridiem time values fail.

 - Remove addition of 12 hours for PM time values in _at_time()
   and _time_full().

 - Dispatch to _at() for AM/PM time, to _time() for time only.

 - Comment the purpose of the wrappers _at() and _time().

0.86  2010-04-20  <schubiger@cpan.org>

 - Merged development version to stable.

0.85_02  2010-04-11  <schubiger@cpan.org>

 - Extract both caller and sub in ::Lang::Base's AUTOLOAD() at once.

 - Correct the indentation of the same subroutine.

0.85_01  2010-04-08  <schubiger@cpan.org>

 - New supported format: <time full> AM/PM. [Wes Morgan]

 - Make _time_full() capable of working with an hours option.

 - Initialize the hours option in _at_time() after having processed
   the arguments.

0.85  2010-03-13  <schubiger@cpan.org>

 - Merged development version to stable.

0.84_03  2010-03-11  <schubiger@cpan.org>

 - Resolve short aliases only if preceded by a digit.

 - Don't capture the date separator for matching with the format.

0.84_02  2010-03-09  <schubiger@cpan.org>

 - Guess the format of dates with a dot or hyphen as separator.

 - Check for separator mismatch when not in lax mode.

0.84_01  2010-02-24  <schubiger@cpan.org>

 - Use the format parameter case-insensitively and test it.

 - Don't bless into a reference within the metadata base constructor.

 - Add some missing commas to the grammar description.

0.84  2010-02-22  <schubiger@cpan.org>

 - Merged development version to stable.

0.83_04  2010-02-16  <schubiger@cpan.org>

 - Enhance the regular expression matching a non-word alias.

 - Correct the indentation of _Nth_Weekday_of_Month_Year().

0.83_03  2010-02-14  <schubiger@cpan.org>

 - Introduce short name aliases. [rt #53976 - Kevin Field]

 - Support shortened relative dates with a +/- prefix.
   [rt #53976 - Kevin Field]

 - Add according tests for aliases and prefixed dates.

 - Test for case-insensitive processing of input strings.

 - Test compile-time loading of Aliases.pm.

0.83_02 Wed Jan 27 10:42:41 CET 2010

 - New supported formats: <time> <weekday> and <time> on <weekday>.
   [rt #53979 - Kevin Field]

0.83_01 Mon Jan 18 10:28:42 CET 2010

 - Pass the time zone object instead of name to the final DateTime
   constructor. [rt #53268 - Eric Wilhelm]

0.83 Wed Jan 13 15:51:11 CET 2010

 - Merged development version to stable.

0.82_02 Wed Jan  6 10:57:43 CET 2010

 - New supported format: M/D. [rt #53187 - Shawn M. Moore]

 - Handle the new format with prefer-future semantics.

 - Add tests for the new format and also for related durations.

 - Document the new format and variations of it.

 - Restrict counting of format separators to the formatted substring.

 - Move the code processing formatted dates to a separate class.

 - Fix the checking for an invalid format parameter.

 - Complete <date> <time> to <time> type of durations.

 - Split the duration string at word boundary of the separator.

 - Restore the datetime object for each parse when running tests.

 - Test compile-time loading of Formatted.pm.

0.82_01 Thu Dec 31 12:10:30 CET 2009

 - Save the trace of each parse while processing a duration.

 - Call for formatted dates the wrapper _set() instead of set()
   in order to alter the modified counters.

 - dateparse: when printing traces, print a trace for each object
   returned.

 - Add tests for the trace method and improve its documentation.

 - Document possible bugs and caveats.

 - Rename some variables with method name strings to be more
   descriptive and also interpolate their strings initially.

 - Substitute an expression for a block as used by 'map'.

0.82 Mon Dec 21 10:15:52 CET 2009

 - Merged development version to stable.

0.81_04 Wed Dec 16 13:32:35 CET 2009

 - dateparse: use the same class instance for each parse run;
   match case-insensitively for commands that quit.

0.81_03 Fri Dec 11 10:32:08 CET 2009

 - Use string interpolation instead of concatenation for symbolic
   references in __new().

0.81_02 Wed Dec  9 20:07:19 CET 2009

 - Reduce the common logic of _valid_date() and _valid_time()
   by moving most of it to a method.

 - Store the daytime option internally with a less nested name.

0.81_01 Mon Dec  7 11:14:19 CET 2009

 - Place the common body of _add() and _subtract() in a single method.

 - Comment the inverse use of _add() within _add_or_subtract().

 - Set values at once within _check_time().

 - Initialize tokens with an anonymous array reference.

 - Purge last unneeded occurrence of 'scalar'.

0.81 Sat Nov 21 12:59:17 CET 2009

 - Merged development version to stable.

0.80_02 Wed Nov 18 10:53:05 CET 2009

 - Move utility and wrapper methods to separate classes.

 - Test compile-time loading of Utils.pm and Wrappers.pm.

 - Don't force explicit scalar context where an implicit one exists.

0.80_01 Mon Nov  2 10:59:46 CET 2009

 - Invoke _valid_date() in _day_month_year() to assert the
   validity of the date before setting it.

 - Separate fixed time data for testing purpose from code.

0.80 Fri Oct 30 10:15:53 CET 2009

 - Merged development version to stable.

0.79_02 Mon Oct 26 10:11:09 CET 2009

 - Improve wording and formatting of the documentation.

 - Update broken license links.

0.79_01 Mon Oct 19 13:30:14 CEST 2009

 - Parse certain common variations of AM/PM or missing " at ".
   [rt #50547 - Andrew Sterling Hanenkamp]

 - Match case-insensitively for grammar regular expressions.

 - Rename _at() to _at_time() and wrap it twice; dispatch to
   _at() instead of _time() where suitable (and vice-versa).

 - Sort the indexes metadata field in ascending order.

0.79 Sat Sep 19 12:23:20 CEST 2009

 - Merged development version to stable.

0.78_03 Thu Sep 17 12:13:08 CEST 2009

 - Relocate the formatted string printing of result strings
   used within the tests to the Test class.

0.78_02 Mon Sep 14 17:18:40 CEST 2009

 - Add support for ranges representing the first and last day
   of a month or year. [rt #44067 - Michael Reddick]

 - Move the insertion code in parse_datetime_duration() to the
   Duration class and the checks to the english metadata class.

 - Quote for parsing failures with duration strings the entire
   input string instead of a partial date string.

 - Save and restore state for parse_datetime_duration().

 - Test compile-time loading of Duration.pm.

0.78_01 Tue Sep  1 15:51:59 CEST 2009

 - Set units at once within _check_date() when Date::Calc is
   not available and add a test. [rt #49326 - Clayton L. Scott]

0.78 Fri Aug  7 11:32:31 CEST 2009

 - Merged development version to stable.

0.77_01 Thu Jun 25 16:00:27 CEST 2009

 - Add a handful of new formats. [rt #43468 - Clayton L. Scott]

 - Don't eventually try to guess the century.

 - Introduce and use a class for common test routines.

 - Test compile-time loading of Test.pm.

 - Rename the misnamed 'hour' metadata option to 'hours'.

 - _daytime() does not use the 'hours' metadata option when
   it is set and hence remove such existing entries.

 - For base methods which use the 'hours' metadata option,
   assume a zero when no value is provided.

0.77 Sun Jun 14 20:46:53 CEST 2009

 - Merged development version to stable.

0.76_04 Sat Jun 13 14:04:21 CEST 2009

 - Remove comment in code about the legacy debug option.

 - Use '\s+' instead of the ambiguous ' ' as token split pattern.

 - Add some whitespace to the regexp which recognizes additional
   tokens for formatted dates.

0.76_03 Wed Jun 10 11:50:42 CEST 2009

 - The current "now" can be overridden through the 'datetime'
   option. [rt #45127 - Giovanni Pensa]

 - parse_datetime_duration() handles durations where the second
   part is relative to the first one. [rt #45127 - Giovanni Pensa]

 - New supported relative duration: for <count> <unit>.
   [rt #45127 - Giovanni Pensa]

0.76_02 Sat Jun  6 13:24:58 CEST 2009

 - When using prefer_future, also allow for weekdays combined with
   the time of day to be parsed correctly. [rt #46689 - Jason May]

 - New supported format: <weekday> <time>. [rt #46689 - Jason May]

0.76_01 Mon Jun  1 21:34:06 CEST 2009

 - Change in default behavior: Use DateTime's truncate method
   to reset time components. Inspired by [rt #43468 - Clayton
   L. Scott] and suggestions from others.

0.76 Thu Apr  9 12:08:32 CEST 2009

 - Merged development version to stable.

0.75_05 Mon Apr  6 12:42:26 CEST 2009

 - New supported format: final <weekday> in <month>.
   [rt #44810 - Christian Brink]

 - Wrap Days_in_Month() in Compat.pm.

0.75_04 Fri Apr  3 15:13:36 CEST 2009

 - New supported formats: some suggested by [rt #44067 - Michael
   Reddick], while others have been independently added.

 - Fix a regression [rt #44691 - Jason May].

 - Shift common conversion logic within base calculation methods
   to the grammar class.

 - Introduce a helper class for handling actions related to
   metadata flags and to serve as container for setter/checker
   methods.

 - Wrap Decode_Month() in Compat.pm.

 - Test both implementations within each method in Compat.pm.

 - Preserve order of tests.

 - Add a test-file for regressions.

 - Remove the obsoleted internal use of a total-modified counter.

0.75_03 Wed Mar  4 13:39:08 CET 2009

 - Enhance the extended checks mechanism further to have it set 
   an error message when a check fails.

 - Run tests without sorting the input strings first.

 - Test compile-time loading of Compat.pm.  

0.75_02 Thu Feb 26 11:01:11 CET 2009

 - Date::Calc is no longer a prerequisite; use it when available 
   for calculations, otherwise fall back to using DateTime.
   [rt #43521 - Jesse Vincent <jesse@bestpractical.com>]

0.75_01 Sun Feb 22 12:09:32 CET 2009

 - When prefer_future is set: Advance the day if the time
   specified is noticeable in the past. [rt #43417 - Jason May]

 - New supported format: <month> <monthday> <year>.
   [rt #43467 - Clayton L. Scott <clscott@cpan.org>]  

0.75 Thu Feb 19 16:50:19 CET 2009
 
 - Merged development version to stable.

0.74_04 Son Feb 15 20:59:28 CET 2009

 - Refrain from adding leading zeros to unit values via
   sprintf() when constructing the final DateTime object.

 - Do not import Date_to_Days(), it's no longer required.

0.74_03 Fri Feb 13 13:15:11 CET 2009

 - Guard against invalid expressions with a 's' suffix,
   but no multiple unit count.  

 - Work around the segmentation fault taking place in 0.74_02
   on perl 5.8.9 and 5.10.0. 

0.74_02 Sun Feb  8 11:47:50 CET 2009

 - New supported format: <count> <weekday>(s) from now.
   [rt #43088 - Anirvan Chatterjee]

 - Add a new field to the language grammar entries to handle
   extended checks of captured regex data.

0.74_01 Thu Jan  8 16:06:17 CET 2009

 - When a four digit year is found, also allow for mm/dd/yyyy
   kind of formats. [Elliot Shank <perl@galumph.com>]

0.74 Sat Dec 20 15:06:50 CET 2008

 - Merged development version to stable.

0.73_04 Sun Nov 30 12:27:26 CET 2008

 - Be more exact with english time matching regular expressions,
   which fixes [rt #41266 - Alex Bowley] partly.

 - The date and time validation methods do now honor all their
   arguments; this reduces the amount of false errors.

 - Wrap the code calling Nth_Weekday_of_Month_Year() in eval
   blocks to catch errors and add some code to act upon the results.

 - Do not call the setter method multiple times if the values can
   be set at once.

0.73_03 Thu Nov 13 21:20:53 CET 2008

 - Move some duplicated logic to helper methods.

 - Do not save intermediate data when generating the trace output.

 - Use the proper data structure name in parse_datetime_duration().

0.73_02 Sun Nov  2 21:40:31 CET 2008

 - The grammar parser now, for each run, only iterates through
   entries with an according count of fields.

0.73_01 Sat Oct 18 22:21:56 CEST 2008

 - Corrected a few typos in the main documentation and also 
   reworded some bits.

0.73 Thu Sep  4 19:53:44 CEST 2008

 - Fixed the 'prefer_future' parameter validation error by
   extending its type definition.

 - Merged development version to stable.

0.72_02 Thu Sep  4 11:06:36 CEST 2008

 - Use the "boolean" pragma for true/false values.

0.72_01 Sun Aug 31 12:33:53 CEST 2008

 - Adjusted the dispatch entries for exact non-formatted dates
   and introduced an according method to avoid false errors.
   [rt #38857 - Ankur Gupta <ankur655@gmail.com>]

 - Call DateTime's set method for exact formatted dates once
   instead of setting each unit separately.

 - Changed the parser to handle internal value positions (i.e.,
   data related to tokens) with more respect when encountering
   lists with a sequence that differs from a truly ascending one.

0.72 Sat Aug 16 13:39:27 CEST 2008

 - When referring within classes to themselves, use the proper
   term "class" instead of "module".

 - Merged development version to stable.

0.71_04 Thu Aug  7 11:28:36 CEST 2008

 - Call validation_options() when DateTime::Format::Natural
   gets loaded (instead of relying on it to be called from
   within a method).

0.71_03 Sun Aug  3 11:06:09 CEST 2008

 - Declared some more expected types when validating arguments
   with Params::Validate.

0.71_02 Fri Aug  1 13:54:02 CEST 2008

 - Moved some duplicated code fragments within the main base class
   to separate methods.

0.71_01 Wed Jul 30 22:15:49 CEST 2008

 - Added time_zone parameter support to 'dateparse' and a shortcut
   to leave it quickly.

0.71 Thu Jun 12 11:17:22 CEST 2008

 - When processing "date abbreviations" call Date::Calc's check_date()
   instead of calling _valid_date() thrice, which could cause bogus
   error messages. [Pat Kale <kale1@llnl.gov>]

0.70 Mon Apr  7 20:29:39 CEST 2008

 - Fixed 'dateparse' failures which were introduced along with
   Params::Validate.

 - Added missing trace calls to _day_today(), _day_yesterday()
   and _day_tomorrow().

0.69 Sat Mar 15 13:44:03 CET 2008

 - Validation of arguments is now handled by Params::Validate.

0.68_01 Thu Mar 13 22:13:26 CET 2008

 - Undo for trailing newlines to be printed when initially
   checking the arguments for validity and some invalid ones are
   encountered. Furthermore, add quoting to the error message.

0.68 Sun Feb 17 14:19:07 CET 2008

 - Added 'prefer_future' test-file.

 - Added Test::MockTime to the dependency list in Build.PL.

 - Restructured documentation.

0.67 Fri Feb  8 01:04:38 CET 2008

 - Extended parser to accept a formatted date and time string.
   [suggested by Shawn M. Moore <sartak@gmail.com>]

0.66 Tue Jan 15 12:04:06 CET 2008

 - Merged development version to stable.

0.65_01 Tue Jan  8 14:13:18 CET 2008

 - Convey less filename information for all test-files (removed
   'en' suffixes), because they needlessly clutter the test output.
   Considering that the grammar is pluggable, we could still move language
   specific tests into subdirs, once multiple language grammars should be
   implemented.

0.65 Fri Dec 28 18:49:40 CET 2007

 - Localized $_ while constructing the format separator.
   [rt #31968 - Shawn M. Moore <sartak@gmail.com>]

0.64 Mon Dec 24 16:19:37 CET 2007

 - Improved the options parsing within scripts/dateparse (by
   introducing a subroutine to set default values independently).

0.63 Thu Dec 20 15:50:07 CET 2007

 - Merged development version to stable.

 - Renamed time_zone test-file (added 'en' suffix).

0.62_03 Thu Dec 13 20:53:11 CET 2007

 - Replaced remaining tabs within the entire source with
   regular spaces (4).

0.62_02 Thu Dec 13 12:12:06 CET 2007

 - Localized $1 within the grammar parser (i.e., the method _process())
   before examining whether a regular expression succeeded and if it did,
   check whether it did capture some content and save it on the "regex-stack".

 - Enhanced the diagnostic printed when faulty grammar types are encountered.

 - Changed a type definition from 'SCALAR' to 'REGEXP' within EN.pm.

0.62_01 Tue Dec 11 13:28:31 CET 2007

 - No "functional" changes, merely "cosmetic" ones.

0.62 Mon Dec  3 21:06:05 CET 2007

 - Added support for abbreviated week-/monthnames when 'prefer_future'
   option is enabled. [rt #31254 - Shawn M. Moore <sartak@gmail.com>]

 - Deprecated export of subs within Lang/Base.pm to Lang/EN.pm
   (the ISA relationship is sufficient).

0.61 Sat Nov 24 10:32:31 CET 2007

 - Improved code efficiency a bit & removed some dead code.

0.60 Tue Nov 20 16:59:24 CET 2007

 - Implemented better timezone handling and added according tests.
   [rt #30765 - Shawn M. Moore <sartak@gmail.com>]

0.59 Thu Nov 15 23:54:25 CET 2007

 - Made the 'prefer_future' parameter a bit more context-sensitive
   with regard to incremental of the current year.
   [rt #30763 - Shawn M. Moore <sartak@gmail.com>]

 - Updated the "SEE ALSO" sections within the documentation
   to refer back to the main package.

0.58 Thu Nov  1 19:54:41 CET 2007

 - Deprecated broken 'debug' parameter to parse_datetime*().

 - Fixed some parameters within scripts/dateparse which were
   erroneously declarated.

0.57 Thu Oct 25 21:21:56 CEST 2007

 - Added tests for durations (i.e., the method parse_datetime_duration()).

0.56 Sat Oct 20 20:02:24 CEST 2007

 - Extended grammar to reflect some suggestions.
   [rt #30147 - Jason May <jason.a.may@gmail.com>]

0.55 Wed Oct 17 15:24:25 CEST 2007

 - Changed behavior of the 'prefer_future' option concerning weekdays.
   [rt #29068 - Jesse Vincent <jesse@bestpractical.com>]

0.54 Fri Oct  5 23:30:28 CEST 2007

 - Added Term::ReadLine support to 'dateparse'.

 - Updated t/* to ensure that all results are being marked successful.

 - Fixed formatted dates, which never succeeded previously.

0.53 Sun Sep 30 13:55:11 CEST 2007

 - Added grammar definitions & according tests for "[day] at [daytime]".

 - Internally documented the grammar layout.

 - Replaced %s with %d for sprintf() format-strings.
   [Jonny Schulz <http://www.bloonix.de>]

0.52 Sat Sep 29 17:02:40 CEST 2007

 - Removed all mentions of german language support within the
   documentation and the code.

 - Extended documentation to explain the grammar a bit.

0.51 Thu Sep 27 17:12:49 CEST 2007

 - Removed no longer necessary 'use_ok()' test for the german language
   metadata. [rt #29651 - Andreas J. König <andreas.koenig@anima.de>]

0.50 Thu Sep 27 00:39:08 CEST 2007

 - Major redo of flexible language metadata handling.

0.40 Sun Sep 23 17:34:48 CEST 2007

 - Empty the marked tokens list on each instance of parse_datetime()/
   parse_datetime_duration().

0.39 Sun Sep  9 00:41:30 CEST 2007

 - Improved handling of dates when no format-string was provided
   or was unsuitable. [rt #29227 - Shawn M. Moore <sartak@gmail.com>]

 - Implemented mechanisms to mark tokens when processed and added
   an according getter method for multiple tokens.

0.38_01 Tue Sep  4 18:10:48 CEST 2007

 - Undone use'ing constant with a hashref provided (breaks on
   older versions of Perl [testers #598724 - David Cantrell <david@cantrell.co.uk>]).

0.38 Wed Aug 29 22:07:00 CEST 2007

 - Redone code formatting.

0.37 Sun Aug 19 11:33:05 CEST 2007

 - Fixed the parsing of unambigious dates such as "next [month]" &
   "last [month]" while the 'prefer_future' option is enabled.

 - Explicitly call methods within the superclass with 'SUPER::'.

 - Documented the 'prefer_future' switch in scripts/dateparse.

0.36 Thu Jun  7 13:42:35 CEST 2007

 - Fixed version numbers which were treated as floating point numbers,
   not as v-string. [rt #27350 - Andres J. König <andreas.koenig@anima.de>]

 - Fixed _set_datetime() which failed whenever a 31st day didn't exist
   in the current month. [rt #27360 - Chia-liang Kao <clkao@clkao.org>]

 - Reversed the order of the day/month/year setter calls within
   parse_datetime(). [mike <pulsation@gmail.com>]

 - Added a 'prefer_future' option to turn ambigious weekdays/months
   to their futuristic equivalents - implemented by counting how often
   an unit was being modified by the appropriate setter call within the
   Base class. [Shawn M. Moore <sartak@gmail.com>]

 - Extended the test-suite to include more exhaustive tests and accordingly
   updated the EXAMPLES in the language metadata classes.

 - Introduced the public method trace() which will show which methods were
   called within the Base class and how often certain units were modified
   by according Datetime setter calls.

0.35 Wed May 23 21:00:39 CEST 2007

 - Implemented next [monthname] & last [monthname] parsing and
   added according tests. [Shawn M. Moore <sartak@gmail.com>]

 - Added tests for the constant daytime values.

 - Albeit it's unlikely that someone will ever subclass Lang/Base.pm,
   a bug in the statement involving bless() within the constructor has
   been fixed (ref($class) 'check' must come first, otherwise subclassing
   is impossible).

 - scripts/dateparse is now being installed.

0.34 Sun May 20 17:09:09 CEST 2007

 - Hopefully fixed "Type of arg 1 to List::MoreUtils::any must be block
   or sub {} (not list)" errors.

 - Added _init_check() which is being called by _init() to validate
   the options passed to the constructor new().

0.33 Sat May 19 03:08:29 CEST 2007

 - Got mostly rid of the "no warnings 'uninitialized'" statements and
   ensured that no undefined values will be encountered by introducing
   an according token accessor which will return either a reference to
   an existing token or to a defined string (in case a token does not
   yield any defined value).

 - Disallowed 'am/pm' for german language metadata since they're
   not known to a native german speaker assuming it is referred
   to the german language itself. [Urs Stotz <stotz@gmx.ch]

 - Introduced two methods, success() and error(). Former indicates
   whether the parsing of a date/time string succeeded or not; latter
   provides the error string if former one should fail. Furthermore,
   the entire system is now reliant upon both of them and doesn't
   croak any longer if parsing should fail.

 - Added according getter/setter/unsetter accessors for the internal
   error and failure attributes.

0.32 Thu May 10 23:52:00 CEST 2007

 - Replaced some conditional variables with early return statements.

 - Introcuded Date::Calc's check_date() and check_time() to assure
   for integrity of date/time values submitted to according setter
   methods.

 - Wrapped check_date() and check_time() in subs which croak upon
   error and supply the type of value and the actual value in the
   message delivered to the caller, otherwise return true.

 - Separated datetime_parse_duration() logic from datetime_parse()
   and added according documentation [Cory Watson <jheephat@gmail.com>]

0.31 Sun May  6 02:57:13 CEST 2007

 - Replaced undef on hash elements within Natural/Base.pm with delete.

 - Changed 'time_zone' parameter's value in calls to DateTime->now()
   with 'floating' instead of 'local'. This should function as fix
   to failures reported on MSWin & Cygwin platforms according to
   [Dave Rolsky <urth@autarch.org>].

 - Due to an unlocalized signal warning handler, uninitialized
   warnings in code which either required/use'd DateTime::Format::Natural
   were being supressed. The handler has been commented out (and left in
   for debugging/development purpose) and replaced by an according
   'no warnings' statements in both Natural.pm & Natural/Base.pm.

0.30 Sun Apr 29 02:33:16 CEST 2007

 - Fixed some spurious date results assumptions in t/01-parse_en.t
   and t/02-parse_de.t which were caused by a bug.

 - Extended documentation to include options pertaining to method
   calls within the documentation in listed form.

 - Added functionality to change the default values for specific
   daytimes. Furthermore, according testcases have been added.

0.29 Mon Apr 16 22:00:27 CEST 2007

 - Support for parsing seconds and minutes in ago stanzas
   [Tuomas Jormola <tj@solitudo.net>]

 - Added according testcases to the testsuite for parsing
   seconds and minutes in ago stanzas.

 - Modified scripts/dateparse.pl to return a absolute time
   with precision in seconds.

0.28 Wed Apr 11 01:44:49 CEST 2007

 - Moved timespan separator definition to language metadata
   base classes.

 - scripts/dateparse.pl language chosen always defaulted
   to 'en' irrespective whether another one has been chosen
   or not. Changed it to only fallback to the default language
   ('en') if no other one has been provided.

 - Added t/03-parse_format.t to the testsuite which tests datestrings
   with various differing format strings.
 
0.27 Tue Apr 10 22:19:15 CEST 2007

 - Mentioning Tatsuhiko Miyagawa as the inspiration source in
   the documentation's Credits section.

 - Implemented a simple timespan calculation, provided the natural
   dates are separated by the literal token 'to' (case-insensitive).
   [Mark Stosberg <mark@summersault.com>]

0.26 Wed Mar 14 13:15:07 CET 2007

 - The constructor accepts now an optional 'format' parameter specifying
   in which format numeric dates should be parsed (either / or - may be
   used to separate the units). [mike <pulsation@gmail.com>]

0.25 Sun Mar 11 23:02:45 CET 2007

 - Separated the logic within parse_datetime() to _process()
   and according internal subroutines.

 - Commented the majority of functions within Base.pm.

 - Introduced List::MoreUtils' any() & none() functions;
   deprecated use of 'no warnings' statement which need
   arose by accessing indexes of @{$self->{tokens}} where
   no members were present.

 - Created TODO file with pending items.

0.24 Wed Jan 17 22:51:51 CET 2007

 - Introduced a warning handler to silence the warnings about
   undefined values when pattern matching, subtracting and
   performing string comparisons in Natural/Base.pm.

 - Merged the "frontend" scripts to a single one taking
   optionally a language argument indicating the country
   code among other arguments.

 - Made 01-parse_en.t's & 02-parse_de.t's code more readable
   by adding some more separating lines.

 - Moved 'our' declarations in DE.pm & EN.pm towards the top.

0.23 Tue Jan 16 19:51:50 CET 2007

 - The language metadata classes have an AUTOLOAD handler & __new
   constructor automatically exported to their namespaces. Because
   some local fiddling with AUTOLOAD and dynamic variable lookup is
   done, a bunch of symbolic references are created on-the-fly.

0.22 Tue Jan 16 02:58:15 CET 2007

 - Previously four digits were occasionally interpreted as year
   and as well as time based upon context. Disambiguated usage
   as year (applies to all Lang:: classes) and fixed all test
   cases were bogus return values from parse_datetime() have
   been expected in order to have no tests fail.

 - Bound the temporary disablement of strictness for references
   to a tighter scope (applies to all Lang:: classes).

0.21 Tue Nov 28 09:31:20 CET 2006

 - Corrected the classes names provided to use_ok() in 00-load.t.
   [SEKIMURA sekimura@gmail.com]

0.20 Tue Nov 28 01:44:46 CET 2006

 - Optimised the regular expressions used in the AUTOLOAD routine
   in the language classes.

0.19 Mon Nov 27 20:06:17 CET 2006

 - Added to DE.pm & EN.pm an AUTOLOAD handler for each of them.
   The subroutine called prefixed with two underscores will be
   translated to an according variable name without underscores.
   The parameter to the subroutine will function as variable
   lookup key.

0.18 Sun Nov 26 17:35:17 CET 2006

 - Fixed all occurences of the global weekday hash by adding the
   missing key "{data}" to the variable lookup.

0.17 Sun Nov 26 16:50:14 CET 2006

 - Encapsulated the metadata within the language packages in an
   object which class gets subclassed from Natural.pm.
   [Tatsuhiko Miyagawa <miyagawa@gmail.com>]

0.16 Sat Nov 25 18:09:48 CET 2006

 - Added missing '1;' to the documentation of Authoring.pod.

 - Changed strings in Authoring.pod to be italic.

 - The testsuite now contains a german aquivalent of the english
   parsing test.

0.15 Sam Nov 25 16:49:22 CET 2006

 - Added DateTime::Format::Natural::Lang::Authoring documentation.

0.14 Sat Nov 25 14:34:33 CET 2006

 - Corrected broken package definition.

0.13 Sat Nov 25 04:14:54 CET 2006

 - Separated data from logic by keeping all regular expressions in
   separate packages.

 - Language support for german has been included.

0.12 Fri Nov 24 20:36:37 CET 2006

 - Added some basic tests to the testsuite which exercice
   converting natural format strings to an according datetime object.

 - Enhanced the collection of valid strings that are translated.

0.11 Fri Nov 24 02:15:30 CET 2006

 - Refactored the code where duplicated chunks were available.

 - Evaluated whether the current listed expressions pass the parsing.

0.10 Thu Nov 23 01:14:44 CET 2006

 - Substituted additions/subtractions where possible with the
   appropriate DateTime method calls.

 - An Exception is thrown if no valid input has been given.
   [Tatsuhiko Miyagawa <miyagawa@gmail.com>]

0.09 Sun Nov 19 14:38:24 CET 2006

 - Date strings with slashes are now being split and assigned
   to the appropriate variables.

 - Moved the initialization of object data into a sub.
   Same procedure for the code chunk returning a datetime object.

0.08 Sun Nov 19 12:30:24 CET 2006

 - Code is now object-oriented.

0.07 Sat Oct 28 17:16:53 CEST 2006

 - Replaced all tabs in EN.pm with regular spaces (4).

0.06 Wed Oct 25 20:24:38 CEST 2006

 - Substituted exporting functions with an object-oriented constructor.
   parse_datetime() is now called as a method.
   [Dave Rolsky <urth@autarch.org>]

 - parse_datetime() takes either a datestring or an options hash.
   [Dave Rolsky <urth@autarch.org>]

0.05 Wed Oct 25 11:27:26 CEST 2006

 - Moved from namespace DateTime::Natural::Parse to DateTime::From::Natural::EN
   [Dave Rolsky <urth@autarch.org>]

 - Renamed natural_parse() to parse_datestring().

0.04 Wed Oct 25 00:17:01 CEST 2006

 - Updated the code to process some "complex" input.

 - Actualized the documentation accordingly.

0.03 Tue Oct 24 01:25:03 CEST 2006

 - Appended the i(ncasesensitive) Modifier to a few regular expressions.

 - Fixed the broken newlines for the example documentation.

0.02 Mon Oct 23 23:22:41 CEST 2006

 - DateTime has been added to the dependencies list.

 - natural_parse() returns a DateTime object [Clayton L. Scott <clscott@cpan.org>]

 - Extended documentation to include some example human readable time strings.

0.01 Sun Oct 22 22:15:54 CEST 2006

 - Initial version.