Language Implementation Patterns--New from Pragmatic Bookshelf

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Language Implementation Patterns--New from Pragmatic Bookshelf
Create Your Own Domain-Specific and General Programming Languages

Raleigh, NC--Developers crave the power of creating their own domain-specific languages. It's a
very practical, productive technique that lets developers boost their productivity by building
applications that are tailor-made for their unique requirements. However, most books on language
development can be a waste of time. They dwell on building compilers and give the impression that
language development requires a lot of theoretical computer science.

Terence Parr shatters that impression in his new book, Language Implementation Patterns: Create
Your Own Domain-Specific and General Programming Languages (Pragmatic Bookshelf, $34.95). Using
detailed descriptions of 31 language patterns--common data structures, algorithms, or
strategies--Parr demystifies the universal elements of languages. The patterns aren't presented as
language design theory or a library of language implementations, they're presented as tools for
developing modest, day-to-day language applications. This is language development put to pragmatic
use.

Organized into four parts, the book leads readers to a rich understanding of DSLs and
general-purpose programming languages. First, Parr presents the overall architecture of language
applications and the key patterns of language recognition (parsing). Next, he uses parsers to build
trees that represent language constructs in memory. By "walking the trees," language developers use
patterns that check whether input streams make sense. Then, in the third part, Parr reveals
patterns for high-level and bytecode interpreters. Last, he shows how to translate languages and
generate text using the StringTemplate template engine. Drawing on the architecture of some
interesting language applications, readers then launch into building their own languages.

Readers apply the patterns toward building configuration file readers, data readers, model-driven
code generators, source-to-source translators, source analyzers, and interpreters. Code snippets
and implementations are written in Java and ANTLR (the well-known parser generator that Parr
created).

But you're not limited to Java or ANTLR. As Parr points out, "You'll have no problem transferring
your knowledge to other tools after you finish the book. It's like learning to fly--you have no
choice but to pick a first airplane. Later, you can move easily to another airplane. Gaining
piloting skills is the key, not learning the details of a particular aircraft cockpit."

No longer is language development the dark art of computer scientists. Using the patterns shared by
programming languages, developers can reap the rewards of building DSLs. Language Implementation
Patterns gives developers true power: the power to code in their own language.

Advance Praise
"Throw away your compiler theory book! Terence Parr shows how to write practical parsers,
translators, interpreters, and other language applications using modern tools and design patterns.
Whether you're designing your own DSL or mining existing code for bugs or gems, you'll find example
code and suggested patterns in this clearly written book about all aspects of parsing technology."
--Guido van Rossum, Creator of the Python language

For a review copy or more information please email maryr@oreilly.com. Please include your delivery
address and contact information.

Terence Parr is a professor of computer science and graduate program director at the University of
San Francisco, where he continues to work on his ANTLR parser generator
(http://post.oreilly.com/rd/9z1z0he8i1v4ibm172mp1vh432rsq8...) and template engine
(http://post.oreilly.com/rd/9z1zfaol9p3h7ik9t8fdmteh8tt1ti...).

Additional Resources:
For more information about the book, including table of contents, index, author bios, and cover
graphic, see: http://post.oreilly.com/rd/9z1zoiq5rlv9rs1ie1cvqtnpvmmli1...

Language Implementation Patterns
http://post.oreilly.com/rd/9z1zlnu782kko9ckbb3h6pmkle3if9...
Publisher: Pragmatic Bookshelf
Terence Parr
ISBN 13: 9781934356456, 350 pages,
$34.95 USD
order@oreilly.com
1-800-998-9938
1-707-827-7000

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