University of Twente Student Theses


A Derivative-based, Colored-edged Parser Generator for Nested Words

Marcelis, Bas (2023) A Derivative-based, Colored-edged Parser Generator for Nested Words.

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Abstract:The language class of nested words lies between regular- and context-free languages on the Chomsky hierarchy. It combines the expressiveness of hierarchy from context-free languages with the robustness of regular languages. An optimised parser generator for this language would be promising, as the nesting of words can be seen in multiple popular programming languages, such as HTML, JSON, and XML, proving the popularity of its applications. This research combines a derivative-based parser with colored nested words to provide a parser generator for well-matched VPGs that accepts ambiguity and returns all possible parse trees, while also having proper error handling by accepting pending calls. The performance of a prototype based on these findings is linear complexity for unambiguous grammars and linear complexity for every possible parse tree for ambiguous grammars, which is proven in both theory and practice.
Item Type:Essay (Bachelor)
Faculty:EEMCS: Electrical Engineering, Mathematics and Computer Science
Programme:Computer Science BSc (56964)
Awards:Best Paper Award
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