Setting up ANTLR IDE with Eclipse Juno

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Installing the ANTLR IDE addon for Eclipse Juno is a pain in the ass.

So here are the steps:

1. Download version 3.0 DLTK Component Core Frameworks for Eclipse (Direct Link)
2. Extract that and copy the folders into the Eclipse root
3. Download the latest ANTLR distribution
4. Open Eclipse
5. Help -> Eclipse Marketplace
6. Search "ANTLR"
7. Install ANTLR IDE
8. Window -> Preferences
9. ANTLR/Builder
10. Installed Packages: Add
11. Directory = Antlr Root/lib/antlr
12. Create new project
13. New -> Other -> ANTLR/Combined Grammar
14. Paste a grammar with a 'header':

grammar Esper;

options {
  language = Java;
  output = AST;
}

@lexer::header {
  package antlrGenerated;
}

@parser::header {
  package antlrGenerated;
}

 15.  Save

  16.  Classes should be automatically generated

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