Declarative specification of template-based textual editors

Syntax discoverability has been a crucial advantage of structure editors for new users of a language. Despite this advantage, structure editors have not been widely adopted. Nevertheless, the Cheetah system, developed at Capgemini, leverages a structure editor to aid domain experts modeling tax-benefit rules in a domain specific language. The structure editor suffers from a lack of free form editing and conversions from/to plain text. The Spoofax language workbench, developed at Delft University of Technology, uses a textual editor, which is syntax-aware due to immediate parsing and analyses. In this thesis we describe a migration from Cheetah to Spoofax, which aims to bring the advantages of text editing to the tax-benefit rule modeling language. During the migration, we experienced that current text-based language workbenches, such as Spoofax, require redundant specification of the ingredients for a template-based editor, which is detrimental to the quality of syntactic completion, as consistency and completeness of the definition cannot be guaranteed. We describe the design and implementation of a specification language for syntax definition based on templates. It unifies the specification of parser, pretty printer and template-based editor. We evaluate the template language by application to the tax-benefit rule modeling language and a language for mobile web applications.

Subject

domain specific languages
language workbenches
pretty printing
editors
language specification
syntax definition
spoofax

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http://resolver.tudelft.nl/uuid:8907468c-b102-4a35-aa84-d49bb2110541

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Student theses

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master thesis

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