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Browsing by Author "Fonseca, Ruben"

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  • Comparing generators for language-based tools
    Publication . Cruz, Daniela; Pereira, Maria João; Berón, Mario; Fonseca, Ruben; Henriques, Pedro Rangel
    The first step in any language development project is the Compiler Generator choice. Nowadays there are many offers, based on translation grammars, attribute grammars or other language specification formalisms. To make up a decision, more factors than just the tool user-friendliness and the processor’s quality should be taken into account. To aid the language developer, we analyze in this paper three Compiler Generators. The traditional and well known YACC, and two more recent ones, LISA and AnTLR-3. The first produces a Syntax-Directed Translator, while the others generate a Semantic-Directed Translator based on attribute evaluation. Moreover both the AG-based generators also produce other Language-based Tools that are mentioned and compared.
    2007Conference paper Open access Show more
  • How to interconnect operational and behavioral views of web applications
    Publication . Fonseca, Ruben; Cruz, Daniela; Henriques, Pedro Rangel; Pereira, Maria João
    In the context of our research project, we are looking for program comprehension tools that are able to interconnect operational and behavioral views, aiming at aiding the programmer to relate problem and program domains to reach a full understanding of software systems. In particular we have been studying the adaptation of that principle to web applications. In this context, we had designed and implemented a tool called WebAppViewer. In this paper, we emphasize the development of the module (BORS) that is responsible for providing interconnection functionalities and we propose a tool demonstration. A dedicated web server is included in the system to allow the execution of the piece of code selected by the user. This feature is used to relate the source text (html, php, etc) executed by the server, with the web page received by the client. Code instrumentation is used to collect dynamic information.
    2008Conference paper Open access Show more