Minor bit of cleanup in the ant scripts around the build src and target on javac, enabling use of Java 11 language features within processing itself. Note that the build is sustained on either 1.8 or 11 in terms of lanugage features but the code is no longer compatible with the Java 8 runtime due to backwards-incompatable changes made starting in Java 9.
Refactor ANTLR message simplification infrastructure to reduce class count within preproc given @benfy feedback within https://github.com/processing/processing4/pull/1. Note that some supporting are left out but those can be further refactored behind classes as desired but strategies are all made anon or inner.
In response to @benfry feedback within https://github.com/processing/processing4/pull/1, consolidated all of the runtime path calculation into a single class while still maintaining all of the tests and caching logic. This reduces the class count but still adapts to jmod and javafx path calculation requirements for java 11.
* Move to ANTLR 4 with Java 11 lang features and localization.
Introduces ANTLR4 and Java 8 language feature support within IDE while also adding additional hooks for localization of syntax error messages, addressing https://github.com/processing/processing/issues/3054 and https://github.com/processing/processing/issues/3055.
The PR is broadly a continuation of https://github.com/processing/processing/issues/3055, bringing it up to speed with the latest Processing master plus the changes introduced at https://github.com/processing/processing/pull/5753. **Requires https://github.com/processing/processing/pull/5753 as pre-requisite.** This introduces a number of edits beyond https://github.com/processing/processing/issues/3055 beyond compatibility with current Processing master and https://github.com/processing/processing/pull/5753 including:
- Update to the grammar itself
- Change ANTLR listeners to emit `TextTransform.Edit` to unify JDT-based `PreprocessingService` and `JavaBuild`, removing code with duplicate purpose.
- Introduction of syntax error rewriting with support for localization.
- Addition of complete localized strings set for English and Spanish.
- Addition of partial localized strings set for other languages.
- Refactor of ANTLR-related code for testability and readability
- Expansion of tests including full parse tests for new Java features (type inference, lambdas).
* Ask travis for ant upgrade prior to run.
* Ask Travis for java11 update.
* Add openjdk ppa
* Travis no confirmation on add ppa.
* Force newer ant on travis.
* Swtich ant download to www-us mirror.
* Switch ant to 1.10.7
* Start x for unit tests in travis.
* More complete start x in travis.
* Revert x in travis.
* Try x in services.
Ben Fry