Statecharts: A visual formalism for complex systems
Science of Computer Programming
Visual programming
Visual object-oriented programming: concepts and environments
Visual object-oriented programming: concepts and environments
Application of graph transformation to visual languages
Handbook of graph grammars and computing by graph transformation
The PROGRES approach: language and environment
Handbook of graph grammars and computing by graph transformation
Principles of Visual Programming Systems
Principles of Visual Programming Systems
DiaGen: a generator for diagram editors providing direct manipulation and execution of diagrams
VL '95 Proceedings of the 11th International IEEE Symposium on Visual Languages
Flowchart techniques for structured programming
ACM SIGPLAN Notices
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In this contribution we introduce GENGED, an environment which is used to interactively specify and generate syntax-directed editors for visual languages. In analogy to textual languages a visual language is specified by both, an alphabet and a grammar. Hence, the GENGED environment provides an Alphabet Editor and a Grammar Editor, respectively. The grammar rules defined using the Grammar Editor specify not only language-generating rules but additionally the editing commands of the Graphic Editor for the specific visual language. The language-specific Graphic Editor then can be used in various environments to allow for syntax-directed drawing of diagrams.