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Change History

This documents the history of significant changes to rivescript-java.

v0.11.0 - August 6, 2019

  • Changes:
    • Add loadInputStream() method (#59).
    • Fix for data loss occuring when variable contains = (#55).
    • Upgraded build environment to latest Gradle 5.5.1 version.

v0.10.0 - August 30, 2017

This update focuses on new features and improvements.

  • Changes:
    • Huge performance improvement in StringUtils.quoteMetacharacters(str) (#52).
    • Add method getVariables() to get all variables (#51).
    • Add method getTopics() to return all topics (#47).
    • Add ability to set a default (brain-wide) concat flag (#46).

v0.9.2 - March 19, 2017

This update focuses on bug fixes.

  • Changes:
    • Fix for not able to get JavaScript ScriptEngine in Google App Engine local devserver using new ScriptEngineManager().getEngineByName(engineName). Fallback mechanism added to use
      new ScriptEngineManager(null).getEngineByName(engineName) (#44).

v0.9.1 - March 7, 2017

This update focuses on bug fixes.

  • API Breaking Changes:

    • Remove java.nio.file.Path reference and subsequently also the RiveScript#loadDirectory(Path path, String... extensions) and RiveScript#loadFile(Path path) methods as they caused issues on Adroid. (#43).

  • Changes:

    • Fix for object caller regexp processing internal {__call__} tags. The closing curly brackets were not escaped (#43).

v0.9.0 - March 3, 2017

This update focuses on new features and bug fixes.

  • API Breaking Changes:

    • The load and call methods of the ObjectHandler interface now require the RiveScript instance as an additional (first) argument.

  • Changes:

    • Add RiveScript Spring Boot Starter module (#34). A dedicated RiveScript Spring Boot Starter sample is available under /samples/spring-bootstarter-rsbot for reference.
    • Add JSR-223 Scripting ObjectHandler to support object macros written in any JSR-223 compliant scripting language. The rivescript-core distro comes bundled with out-of-the-box support for JavaScript, Groovy and Ruby object macros using the general Jsr223ScriptingHandler. This Jsr223ScriptingHandler can also be used to easily implement other programming languages which are supported by the JSR-223 Scripting API. Developers should manually add the appropriate Groovy or Ruby dependencies to their projects if they want to use the GroovyHandler or RubyHandler. For the JavaScriptHandler no external dependency is needed. (#32, #36)
    • Fix for removeHandler() causing a ConcurrentModificationException.
    • Fix for making wildcards in optionals not matchable (#42).
    • Add static constants for custom error message keys.
    • Add static constant for "undefined" string (#41).
    • Reorganize tests in proper separation of unit and integration tests (#38).

v0.8.1 - February 20, 2017

This update focuses on bug fixes.

  • Changes:
    • Fix for String#split() returning trailing empty string on Google AppEngine (https://code.google.com/p/googleappengine/issues/detail?id=13565).
    • Fix for NullPointerException being thrown in case Subroutine or ObjectHandler returned null (#40).
    • Fix for object macros to support quoted strings come in as one arg regardless of spaces (#40). Typical use case:
      • <call>object_name "a b"</call> will call the macro with a single arg ["a b"].
      • <call>object_name "a b" c d</call> will call the macro with 3 args ["a b", "c", "d"].
      • <call>object_name "<get name>"</call> will call the macro with a single arg containing the value from the user var. Note <call>object_name <get name></call> would call the macro with multiple args in case the user var value would contain spaces.

v0.8.0 - February 14, 2017

This update focuses on new features and huge code refactoring / reorganization. The rivescript-java implementations has been aligned with the rivescript-go implementation.

  • API Breaking Changes:

    • Removed RiveScript(boolean debug) constructor in favour of RiveScript(Config config) constructor .
    • The RiveScript instance has no notion of debug mode anymore. Debug logging is now based on the SLF4J configuration.
    • Refactored com.rivescript.ObjectMacro to com.rivescript.macro.Subroutine.
    • Renamed ObjectHandler methods from onLoad, onCall to respectively load and call. Also the setClass method has been removed.
    • The org.json dependency is now a optional dependency. Developers using Perl object macros must include this org.json dependency manually to their projects.

  • Changes:

    • Replace System.out logging by using the SLF4J API.
    • Add Unicode support (#30, #31).
    • Add new forceCase config option, which will force-lowercase your triggers during parse time, enabling authors to use uppercase letters in triggers without it being a syntax error. Do note however that Unicode case folding can become an issue with certain symbols.
    • Add customizable error messages config option.
    • Add throw exceptions config option, which will make the bot throw (runtime) exceptions (e.g. DeepRecursionException, ReplyNotFoundException)
      in case of an error instead of just replying with an error message. When enabled, developers should catch these exceptions and take the appropriate actions.
    • The RiveScript constructor now accepts a Config object to configure the RiveScript instance. Also a developer Config.Builder is available.
    • Add support for pluggable session stores for user variables. The default one still keeps user variables in memory, but you can specify your own implementation instead (#33).
    • Add RiveScript shell to quickly demo and test a RiveScript bot. See com.rivescript.cmd.Shell.
    • Separated the Parser which can now be used independently. The parser returns a Abstract Syntax Tree (AST) identical to the rivescript-go parser. It enables third party developers to write applications that simply parse RiveScript code and getting an AST from it.
    • Add option to load RiveScript source code from a java.io.File or java.nio.file.Path.
    • Fix for sorting %Previous triggers (#9).

v0.7.2 - January 17, 2017

  • Changes:
    • Fix to make the RiveScript thread safe using a a ThreadLocal to store the current user. (#18).
    • Add support for escaping _ (underscores) in triggers.

v0.7.1 - January 9, 2017

  • Changes:
    • Fix for arrays in replies (e.g. (@greek)) not being converted to randomized sets (bug #26).
    • Fix trigger regexp processing so that if a {weight} tag contains a space before or after it (or: a space between {weight} and the rest of the trigger text), the spaces are also stripped so that matching isn't broken for that trigger (bug #29).
    • Fix to support embedded tags in replies (bug #28).
    • Fix for list of stars which were growing incorrectly by multiple calls to processTags() (#19).
    • Fix to avoid adding null stars while harvesting the stars (#20).
    • Fix for moving the no-{inherits} triggers to the bottom of the stack when sorting the triggers (#8).

v0.7.0 - December 22, 2016

  • Changes:
    • Refactored project setup to allow separate module.
    • Switched to Gradle as build tool.

v0.6.0 - June 28, 2016

  • Changes:
    • Switched to semantic versioning; com.rivescript.RiveScript.VERSION is now a string "0.6.0" instead of a floating point number.
    • Add support for Java object macros (compile-time) via the new API function setSubroutine()
    • Add API function currentUser() which returns the current user's ID, accessible from a Java object macro.
    • Add API function lastMatch() which returns the text of the most recently matched trigger for a user's message.
    • Add support for ! local concat option to override concatenation mode (file scoped)
    • Add unit tests and fix various bugs discovered in the process:
      • Make the BEGIN block work if it doesn't give an {ok} response.
      • Only crawl the topic inheritance tree if the topic inherits or includes other topics.
      • Process tags on @Redirect before redirecting.
      • Implement the fix from RiveScript-JS #48 with regards to matching optionals.
      • Fix escaping regular expression metacharacters in some places.
      • Implement the ability to set <bot> and <env> variables with the syntax like <bot name=value>.
      • Implement the fix from RiveScript-JS #92 with regards to the <@> tag failing if <star1> is undefined.
      • Fix a couple off-by-one errors with <formal> and <sentence> formatting where the second character was being made uppercase instead of the first.
      • Fix an egregious typo in getTopicTree where RiveScript would crash if a topic inherited other topics, but didn't include other topics. The code was checking for inheritance but looping over includes.

v0.03-beta - Nov 26, 2014

  • Initial official beta release.