This easy-to-use, fast-moving tutorial introduces you to functional programming with Haskell. You'll learn how to use Haskell in a variety of practical ways, from short scripts to large and demanding applications. Real World Haskell takes you through the basics of functional programming at a brisk pace, and then helps you increase your understanding of Haskell in real-world issues like I/O, performance, dealing with data, concurrency, and more as you move through each chapter. With this book, you will: Understand the differences between procedural and functional programmingLearn the features of Haskell, and how to use it to develop useful programsInteract with filesystems, databases, and network servicesWrite solid code with automated tests, code coverage, and error handlingHarness the power of multicore systems via concurrent and parallel programming

You'll find plenty of hands-on exercises, along with examples of real Haskell programs that you can modify, compile, and run. Whether or not you've used a functional language before, if you want to understand why Haskell is coming into its own as a practical language in so many major organizations, Real World Haskell is the best place to start.

This instructive book takes you step by step through ways to track, merge, and manage both open source and commercial software projects with Mercurial, using Windows, Mac OS X, Linux, Solaris, and other systems. Mercurial is the easiest system to learn when it comes to distributed revision control. And it's a very flexible tool that's ideal whether you're a lone programmer working on a small project, or part of a huge team dealing with thousands of files. Mercurial permits a countless variety of development and collaboration methods, and this book offers several concrete suggestions to get you started. This guide will help you: Learn the basics of working with a repository, changesets, and revisions Merge changes from separate repositories Set up Mercurial to work with files on a daily basis, including which ones to track Get examples and tools for setting up various workflow models Manage a project that's making progress on multiple fronts at once Find and fix mistakes by isolating problem sources Use hooks to perform actions automatically in response to repository events Customize the output of Mercurial"Mercurial: The Definitive Guide" maintains a strong focus on simplicity to help you learn Mercurial quickly and thoroughly.

The people most impacted by criminal justice policies and practices are seldom included in the decision-making processes that affect their lives. Building on the 'nothing about us without us' social movement, this edited volume advocates an inclusive approach to criminology that gives voice to historically marginalized, silenced, and ignored groups. Incorporating the experiences of service users, academics, and state and grassroots practitioners, this volume considers how researchers might bridge the gap between theory and lived experience. It furthers criminological scholarship by capturing the voices of marginalized groups and exploring how criminology can authentically incorporate these voices.