Revision history for Perl extension RiveScript.
1.32 Feb 24 2014
- Maintenance release to fix some errors per the CPANTS.
- Add license to Makefile.PL
- Make Makefile.PL not executable
- Make version numbers consistent
1.30 Nov 25 2013
- Added "TCP Mode" to the `rivescript` command so that it can listen on a
socket instead of using standard input and output.
- Added a "--data" option to the `rivescript` command for providing JSON
input as a command line argument instead of standard input.
- Added experimental UTF-8 support.
- Bugfix: don't use hacky ROT13-encoded placeholders for message
substitutions... use a null character method instead. ;)
- Make .rive the default preferred file extension for RiveScript documents
instead of .rs (which conflicts with the Rust programming language).
Backwards compatibility remains to load .rs files, though.
1.28 Aug 14 2012
- FIXED: Typos in RiveScript::WD (Bug #77618)
- Added constants RS_ERR_MATCH and RS_ERR_REPLY.
1.26 May 29 2012
- Added EXE_FILES to Makefile.PL so the rivescript utility installs
correctly.
1.24 May 15 2012
- Fixed: having a single-line, multiline comment, e.g. /* ... */
- Fixed: you can use <input> and <reply> in triggers now, instead of only
<input1>-<input9> and <reply1>-<reply9>
- When a trigger consists of nothing but multiple wildcard symbols, sort
the trigger by length, this way you can have '* * * * *' type triggers
still work correctly (each <star> tag would get one word, with the final
<star> collecting the remainder).
- Backported new feature from Python lib: you can now use <bot> and <env>
to SET variables (eg. <bot mood=happy>). The {!...} tag is deprecated.
- New feature: deparse() will return a Perl data structure representing all
of the RiveScript code parsed by the module so far. This way you can build
a user interface for editing replies without requiring a user to edit the
code directly.
- New method: write() will use deparse() to write a RiveScript document using
all of the in-memory triggers/responses/etc.
- Cleaned up the POD documentation, put POD code along side the Perl functions
it documents, removed useless bloat from the docs.
- POD documentation now only shows recent changes. For older changes, see the
"CHANGES" file in the distribution.
- Removed the `rsup` script from the distribution (it upgrades RiveScript 1.x
code to 2.x; there probably isn't any 1.x code out in the wild anyway).
1.22 Sep 22 2011
- Cleaned up the documentation of RiveScript; moved the JavaScript object
example to a separate document in the `docs' directory.
- Obsoleted the `rsdemo` command that used to ship with the distribution. In
its place is `rivescript`, which can also be used non-interactively so that a
third party, non-Perl application could still make use of RiveScript.
- RiveScript.pm is now dual licensed. It uses the GPLv2 for open source
applications as before, but you can contact the author for details if you
want to use RiveScript.pm in a closed source commercial application.
1.20 Jul 30 2009
- Added automatic syntax checking when parsing RiveScript code. Also added
'strict mode' - if true (default), a syntax error is a fatal error. If false,
a syntax error is a warning, and RiveScript aborts processing the file any
further.
- Changed the behavior of "inherits" a bit: a new type has been added called
"includes" which does what the old "inherits" does (mixes the trigger list
of both topics together into the same pool). The new "inherits" option though
causes the trigger list from the source topic to be higher in matching priority
than the trigger list of the inherited topic.
- Moving to a new versioning scheme: development releases will have odd
version numbers, stable (CPAN) versions will have even numbers.
- Fixed the Eliza brain; in many places a <star2> was used when there was only one
star in the trigger. Fixes lots of issues with Eliza.
- Bugfix: recursion depth limits weren't taken into account when the {@} tag
was responsible for a redirection. Fixed.
- Bugfix: there was a problem in the regular expression that counts real words
while sorting triggers, so that triggers with *'s in them weren't sorted
properly and would therefore cause matching issues.
- Bugfix: when the internal _getreply is called because of a recursive
redirection (@, {@}), the %previous tags should be ignored. They weren't.
since "lastreply" is always the same no matter how deeply recursive _getreply
is going, it could result in some infinite recursion in rare cases. Fixed.
- Bugfix: using a reserved name as a global variable wasn't working properly
and would crash RiveScript. Fixed.
1.19 Apr 12 2009
- Added support for defining custom object handlers for non-Perl programming
languages.
- All the methods like setGlobal, setVariable, setUservar, etc. will now
accept undef or "<undef>" as values - this will delete the variables.
- There are no reserved global variable names anymore. Now, if a variable name
would conflict with a reserved name, it is put into a "protected" space
elsewhere in the object. Still take note of which names are reserved though.
1.18 Dec 31 2008
- Added support for topics to inherit their triggers from other topics.
e.g. > topic alpha inherits beta
- Fixed some bugs related to !array with ^continue's, and expanded its
functionality therein.
- Updated the getUservars() function to optionally be able to get just a specific
variable from the user's data. Added getUservar() as a grammatically correct
alias to this new functionality.
- Added the functions freezeUservars() and thawUservars() to back up and
restore a user's variables.
- Added the function lastMatch(), which returns the text of the trigger that
matched the user's last message.
- The # command for RiveScript comments has been deprecated in revision 7 of
the RiveScript Working Draft. The Perl module will now emit warnings each
time the # comments are processed.
- Modified a couple of triggers in the default Eliza brain to improve matching
issues therein.
- +Triggers can contain user <get> tags now.
- Updated the RiveScript Working Draft.
1.17 Sep 15 2008
- Updated the rsdemo tool to be more flexible as a general debugging and
developing program. Also updated rsdemo and rsup to include POD documentation
that can be read via `perldoc`.
- Added a global variable $RiveScript::basedir which is the the path to your
Perl lib/RiveScript folder. This is used by `rsdemo` as its default location
to search for replies.
- Tweak: Triggers of only # and _ can exist now alongside the old single-wildcard
trigger of *.
- Bugfix: The lookahead code would throw Perl warnings if the following line
had a single space in it, but was otherwise empty.
- Bugfix: Inline comment removing has been fixed.
- Bugfix: In conditionals, any blank side of the equality will get a default
value of "undefined". This way you can use a matching array inside an optional
and check if that <star> tag is defined.
+ i am wearing a [(@colors)] shirt
* <star> ne undefined => Why are you wearing a <star> shirt?
- What color is it?
- Updated the RiveScript Working Draft.
1.16 Jul 22 2008
- New options to the constructor: 'verbose' and 'debugfile'. See the new()
constructor for details.
- Added new wildcard variants:
* matches anything (previous behavior)
# matches only numbers
_ matches only letters
So you can have a trigger like "+ i am # years old" and "+ i am * years old",
with the latter trigger telling them to try that again and use a NUMBER this
time. :)
- Bugfix: when there were multiple +trigger's that had a common %previous,
there was no internal sort buffer for those +trigger's. As a result, matching
wasn't very efficient. Added the method sortThatTriggers() to fix this.
- Bugfix: tags weren't being processed in @Redirects when they really
should've!
- Bugfix: The ^Continue lookahead code wouldn't work if the next line began
with a tab. Fixed!
- Updated the RiveScript Working Draft.
1.15 Jun 19 2008
- Person substitutions support multiple-word patterns now.
- Message substititons also support multiple-word patterns now.
- Added syntax tracking, so Deep Recursion errors can give you a filename and
line number where the problem occurred.
- Added a handler for detecting when a user was put into an empty topic.
- Rearranged tag priority.
- Updated the RiveScript Working Draft.
1.14 Apr 2 2008
- Bugfix: If a BEGIN/request trigger didn't exist, RiveScript would not fetch
any replies for the client's message. Fixed.
- Bugfix: Tags weren't being re-processed for the text of the BEGIN statement,
so i.e. {uppercase}{ok}{/uppercase} wasn't working as expected. Fixed.
- Bugfix: RiveScript wasn't parsing out inline comments properly.
- Rearranged tag priorities.
- Optimization: When substituting <star>s in, an added bit of code will insert
'' (nothing) if the variable is undefined. This prevents Perl warnings that
occurred frequently with the Eliza brain.
- Updated the RiveScript Working Draft.
1.13 Mar 18 2008
- Included an "rsup" script for upgrading old RiveScript code.
- Attempted to fix the package for CPAN (1.12 was a broken upload).
- Bugfix: <bot> didn't have higher priority than <set>, so
i.e. <set name=<bot name>> wouldn't work as expected. Fixed.
1.12 Mar 16 2008
- Initial beta release for a RiveScript 2.00 parser.