Working with QSL

What is QSL ?

QSL stands for Questionnaire Structure Language . We can use this language to specify structure of a questionnaire template including questionnaire's properties , questions and question's properties . Though QSL has not been supported completely questionnaire template ( there are a few features missing ), it is an advance way to work with questionnaire template . Once getting familiar with QSL , user can create a questionnaire template quicker than using the GUI .

From which version QSL has supported ?

QSL started in version 5.4 (VN1197QNR - Import of Questionnaire template) . In 5.5 , we re-defined the grammar of QSL and keep it up to now . An improvement was made in 5.6 so that the engine can catch syntax error and support test resource for error message .

Before working with QSL

QSL is a domain specific language (DSL) . It is always a painful to deal with DSL by our own but everything is easier thank to ANTLR (AnoTher Tool for Language Recognition). This is a language tool that provides a framework for constructing recognizers, compilers, and translators from grammatical descriptions containing actions in a variety of target languages. It is widely used because it's easy to understand, powerful, flexible, generates human-readable output and free . It is recommended that developers read the book "The Definitive Antlr Reference Building Domain-Specific Languages" to have a background before getting into QSL

Processing QSL

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