Visual Language Editing Using a Grammar-Based Visual Structure Editor

Abstract We describe a structure editor that allows visual programs and other visual structures to be created and manipulated in a visual component-based manner with automatic layout. The structure editor is able to edit any number of visual languages simultaneously through the use of visual grammars to control the editing action. In this paper, we describe the operation of the editor, the visual grammar which is based upon containment and adjacency between visual objects, and how the visual grammar controls object layout on a visual display.

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