What is language DSL?
A domain-specific language (DSL) is a computer language specialized to a particular application domain. This is in contrast to a general-purpose language (GPL), which is broadly applicable across domains. Simpler DSLs, particularly ones used by a single application, are sometimes informally called mini-languages.
How do I create a DSL language?
Creating a Domain-Specific Language Solution
- Start the DSL Wizard by creating a new Domain-Specific Language Designer project.
- Choose a DSL template.
- Enter a filename extension on the File Extension page.
- Inspect, and if necessary adjust, the fields in the remaining pages of the wizard.
How are domain specific languages used in DSL?
Many domain-specific languages can be used in more than one way. DSL code embedded in a host language may have special syntax support, such as regexes in sed, AWK, Perl or JavaScript, or may be passed as strings.
Which is an example of a DSL definition?
The DSL definition specifies what types of model elements and links can exist in the model. For example, in a DSL created from the Minimal Language template, there is one type of model element, and one type of link. The DSL definition can specify how the model appears on a diagram. You can choose from a variety of styles of shapes and connectors.
How to write a DSL language in Python?
So the first version of our DSL will look like this: Blank lines or comment lines that start with “#” are ignored, just like Python. Any other line starts with the module name, then the function name followed by its arguments, separated by spaces. Python makes this easy by simply reading the DSL source file line by line and using string methods.
What’s the difference between a UML and a DSL?
By contrast, languages such as UML are general-purpose. In a DSL, you can define the types of model element and their relationships, and how they are presented on the screen. When you have designed a DSL, you can distribute it as part of a Visual Studio Integration Extension (VSIX) package.