2. TECHNICAL CONTENT BRAIN SAFETY

4. DSL DSLs are generally very high level languages tailored to specific tasks. They are designed to make their users particularly effective in a specific domain. DSLs include a wide range of applications, many of which you might not consider languages. DSLs include data for mats, configuration file for mats, network protocols, text processing languages, protein patter ns, gene sequences, space probe control languages, and domain-specific programming languages.

6. Rules DSL? try Drools labs.jboss.org/drools

9. Antlr A sophisticated parser generator you can use to implement language interpreters, compilers, and other translators.

10. Low Complexity? recipe "PBJ Sandwich" ingredients "two slices of bread", "one heaping tablespoon of peanut butter", "one teaspoon of jam" instructions "spread peanut butter...", "spread jam...", "place other slice..." servings 1 prep_time "2 minutes"

12. Overall Translation Data Flow

13. Compilation Process

15. ***A lexeme is an abstract unit of morphological analysis in linguistics, A token is a categorized block of text, usually consisting of indivisible characters known as lexemes. A lexical analyser processes lexemes to categorize them according to function, giving them meaning. This assignment of meaning is known as tokenization . A token can look like anything: English, gibberish symbols, anything; it just needs to be a useful part of the structured text.

16. Java programming language: sum=3+2; lexeme token type sum IDENT = ASSIGN_OP 3 NUMBER + ADD_OP 2 NUMBER ; SEMICOLON

17. Parsing parsing (more formally syntactic analysis) is the process of analyzing a sequence of tokens to determine its grammatical structure with respect to a given formal grammar.

18. Parsing transforms input text into a data structure (AST) x = y - z * 3

19. Parser is the component of a compiler that carries out this task.

20. Relationship Between Characters, Tokens, and ASTs

21. A State Machine That Generates Blues Lyrics

23. The Grammar File

24. The rule section

25. ANTLRWorks Grammar Development Environment

26. Now ... Hands on Macs ! http://fmeyer.org/antlr/antlr-cj-lab.tar.gz Download the sample app from