Simple IntelliJ plugin to demonstrate file type detection, based on content

Directory structure

• src/main/java: Java sources
• src/main/resources: Java resource files
• src/test/java: Java test case sources
• src/test/resources: Java test case resource files

Continous integration builds

.travis.yml configures a Travic-ci.org build.

Documentation

• Article about this topic: https://www.plugin-dev.com/intellij/custom-language/file-type-detection/