June 2009
Intermediate to advanced
494 pages
14h 7m
English
Content preview from Erlang ProgrammingBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 16. Interfacing Erlang with Other Programming Languages
It is common for modern computer systems of any size to be built using more than one programming language. Device drivers are typically written in C, and many integrated development environments (IDEs)—such as Eclipse—and other GUI-heavy systems are written in Java or C#. Lightweight web apps can be developed in Ruby and PHP, and Erlang can provide lightweight, fault-tolerant concurrency. If you need to efficiently manipulate or parse strings, Perl or Python is the norm. The library that solves a particular problem for you may not be written in your favorite language, and you must choose whether to use the foreign library or bite the bullet and recode the whole thing in Erlang yourself.[36]
Interlanguage communication is never simple in natural languages or in programming. In natural languages, we must understand the different ways in which the languages work. Do they contain articles? Do they denote gender? Where do the verbs occur in a sentence? We also must understand how words translate. Does the verb ser in Portuguese mean the same as “to be” in English, for instance? (It doesn’t.) It’s the same for programming languages. Which paradigm do they come from? Are the languages functional, object-oriented, concurrent, or structured? Is an integer in Java the same thing as an integer in Erlang? (It isn’t!)
Interoperation is not only about interlanguage communication, and Erlang/OTP also supports communication by means ...
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