CSSE 404: Day 10

Outline

• FLEX: A lexer generator
• CUP: A parser generator

Resources

• Flex lexical analyzer WikiPedia page
• Sample grammar.
• Sample lcalc.lex file discussed in the article by Lopes and demonstrated in class.
• Sample lcalc.cup file discussed in the article by Lopes and demonstrated in class. NOTICE: The file posted in the online tutorial is incorrect. It uses the non-terminal "primary" rather than "term".
• A quick main.java file for testing.
• The test.txt file that is read by the sample code.
• Flex homepage
• Structure of a .lex file
• CUP homepage
• Structure of a .cup file.
• Linux Gazette article entitled Compiler Construction Tools - Part I: JFlex and CUP by Richard Sevenich
• Linux Gazette article entitled Compiler Construction Tools - Part II: Installing JFlex and CUP; Specific Instructions by Richard Sevenich.
• Linux Gazette article entitled Creating A Calculator Using JFlex And CUP by Christopher Lopes.

Assignments

• Day 14: 23:59: Parser