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Go to LATEST version (http://vll.java.net/)
The code in this project has been superceded by a new version that has numerous additional features but retains the simplicity of use. The code in this project is not being maintained or upgraded any more.
Go to LATEST version (http://vll.java.net/)

A Visual IDE-Style LL(k) Parser Generator that uses an editable tree with icons for tokens and non-terminals to represent the grammar symbols and grammar rules.

The tool is completely interactive. Errors in the grammar are indicated by adorning the affected icons as the rule-tree is edited, and the generated parser code is displayed in an adjacent pane so the effect of edits on the rule-tree can be immediately verified.

The visual tree representation of grammar rules completely eliminates the need to use and understand cryptic specifications as used in YACC, ANTLR and JavaCC. The grammar is saved to (and read from) data files using pure-Java mechanisms.

The built-in scanner can also be customized for the application via the GUI.



 
 
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