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Download Clojure for Domain-specific Languages by Ryan D. Kelker PDF

By Ryan D. Kelker

Tips on how to use Clojure language with examples and advance domain-specific languages at the go
Overview
Explore DSL strategies from current Clojure DSLs and libraries
Bring Clojure into your Java purposes as Clojure may be hosted on a Java platform
A tutorial-based consultant to advance customized domain-specific languages
In Detail
Clojure is a really new and quickly transforming into language that runs on most sensible of the JVM. The language being hosted at the Java platform permits Clojure functions to take advantage of current Java elements. even though there are gadgets in Clojure, the language isn't item orientated.

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Extra info for Clojure for Domain-specific Languages

Sample text

Hiccup Formative makes HTML form building somewhat exciting, but let's see how we can develop this same form in another DSL and Clojure library called Hiccup. Hiccup is like Formative in the sense that it generates HTML after converting Clojure data, but Hiccup isn't restricted to only forms. Hiccup provides two methods for us to make HTML forms. The following code is the same form as the previous HTML and Formative examples, but this time it's written in the Hiccup DSL: (form-to [:post "/guestbook"] (label "username-label" "Username")[:br] (text-field "username")[:br] (label "email-label" "Email")[:br] (email-field "email")[:br] (check-box "agree") (label "agree-label" "Agree")[:br] (submit-button "Submit Form")) This may look a little crowded in comparison to Formative's solution, but this is still clearly better than writing HTML directly.

Also, notice how, in comparison to Korma's solution, the line count is the same but the character count is much more. This portion of the book was a just a small glimpse at what these two Clojure libraries can do. I would encourage you, the reader, to explore them a little bit more for a better understanding of their full capabilities. com/. jdbc. com. com. The HTML domain The HTML problem domain has quite a unique collection of Clojure libraries that can make working with HTML feel like a different language altogether.

This approach also allows us to better build pure functions. A pure function isn't dependent on any variable outside the function. Anything other than the arguments passed to the function can't be realized by a pure function. Because our program will cause side effects as a result of execution, not all of our functions can be truly pure. This doesn't mean we should forget about trying to develop program-like functions. Our code inherently becomes more modular because pure functions can survive on their own.

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