A Parsing Methodology for the Implementation of Visual Systems
IEEE Transactions on Software Engineering
Visual language theory
Generalized L.R. Parsing
Efficient Parsing for Natural Language: A Fast Algorithm for Practical Systems
Efficient Parsing for Natural Language: A Fast Algorithm for Practical Systems
A component-based visual environment development process
SEKE '02 Proceedings of the 14th international conference on Software engineering and knowledge engineering
Concepts and realization of a diagram editor generator based on hypergraph transformation
Science of Computer Programming - Special issue on applications of graph transformations (GRATRA 2000)
A visual environment for visual languages
Science of Computer Programming - Special issue on applications of graph transformations (GRATRA 2000)
VL '00 Proceedings of the 2000 IEEE International Symposium on Visual Languages (VL'00)
Automatic generation of intelligent diagram editors
ACM Transactions on Computer-Human Interaction (TOCHI)
Compilers: Principles, Techniques, and Tools (2nd Edition)
Compilers: Principles, Techniques, and Tools (2nd Edition)
Syntax analysis for diagram editors: a constraint satisfaction problem
Proceedings of the working conference on Advanced visual interfaces
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Editors for visual languages should provide a user-friendly environment supporting end users in the composition of visual sentences in an effective way. Syntax-aware editors are a class of editors that prompt users into writing syntactically correct programs by exploiting information on the visual language syntax. In particular, they do not constrain users to enter only correct syntactic states in a visual sentence. They merely inform the user when visual objects are syntactically correct. This means detecting both syntax and potential semantic errors as early as possible and providing feedback on such errors in a non-intrusive way during editing. As a consequence, error handling strategies are an essential part of such editing style of visual sentences. In this work, we develop a strategy for the construction of syntax-aware visual language editors by integrating incremental subsentence parsers into free-hand editors. The parser combines the LR-based techniques for parsing visual languages with the more general incremental Generalized LR parsing techniques developed for string languages. Such approach has been profitably exploited for introducing a noncorrecting error recovery strategy, and for prompting during the editing the continuation of what the user is drawing.