what is dsl language

A domain-specific language (DSL) is a computer language specialized to a particular application domain, in contrast to a general-purpose language, which is broadly applicable across domains. DSLs can range from widely used languages for common domains, such as HTML for web pages, to languages used by only one or a few pieces of software. They can be further subdivided into domain-specific markup languages, domain-specific modeling languages, and domain-specific programming languages. DSLs can be implemented via an independent interpreter or compiler (External DSLs) or within a host language as a library (Internal DSLs). They are used to provide a higher level of abstraction optimized for a specific class of problems