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windows default iconVisualLangLab Publisher's description

VisualLangLab is a visual parser-generator IDE for development of parsers without code or script of any kind.

VisualLangLab is a visual parser-generator IDE for development of parsers without code or script of any kind. It is simple in use, and easy to learn. Unlike other parser-generators, VisualLangLab represents parser rules as visual grammar-trees with distinct icons for the grammar-tree nodes. The following figures show how it represents the rules of the arithmetic expression parser in section 31.1 of Programming in Scala.

The grammar-trees are executable, and can be run at any time at the click of a button. No other skills or tools are needed. Input for the parser can be entered into the IDE or obtained from user-nominated files. This simplifies testing, promotes an iterative-incremental development process, and speeds up development manyfold. Optional actions — snippets of code in javascript or Scala — can also be embedded in the grammar.

The parser development process is reduced to creating the equivalent grammar-tree(s) using menu-bar and context-menu operations of the GUI. Textual input from the keyboard is required only for naming the parser rules and tokens, and for specifying regular expression patterns for tokens.

What's New in This Release:

В· FAQ web-page added

System Requirements:

В· Scala 2.9.0+
Program Release Status: New Release
Program Install Support: Install and Uninstall

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