Book Image

Delphi Cookbook - Third Edition

By : Spinetti, Daniele Teti
Book Image

Delphi Cookbook - Third Edition

By: Spinetti, Daniele Teti

Overview of this book

Delphi is a cross-platform integrated development environment (IDE) that supports rapid application development on different platforms, saving you the pain of wandering amid GUI widget details or having to tackle inter-platform incompatibilities. Delphi Cookbook begins with the basics of Delphi and gets you acquainted with JSON format strings, XSLT transformations, Unicode encodings, and various types of streams. You’ll then move on to more advanced topics such as developing higher-order functions and using enumerators and run-time type information (RTTI). As you make your way through the chapters, you’ll understand Delphi RTL functions, use FireMonkey in a VCL application, and cover topics such as multithreading, using aparallel programming library and deploying Delphi on a server. You’ll take a look at the new feature of WebBroker Apache modules, join the mobile revolution with FireMonkey, and learn to build data-driven mobile user interfaces using the FireDAC database access framework. This book will also show you how to integrate your apps with Internet of Things (IoT). By the end of the book, you will have become proficient in Delphi by exploring its different aspects such as building cross-platforms and mobile applications, designing server-side programs, and integrating these programs with IoT.
Table of Contents (12 chapters)

Checking strings with regular expressions

A regular expression (RegEx) is a sequence of characters that form a search pattern where some characters have a special meaning. It's mainly used to match patterns on strings. A simple case is something like this: check whether string A matches the criteria defined in string B. Regular expressions follow a specific language to define the criteria. Regular expressions are not only present in Delphi. Many languages have a regular expression library in their standard built-in library. So, if you don't know what a regular expression is, you can read the general documentation at http://en.wikipedia.org/wiki/Regular_expression and then check the Delphi-specific built-in implementation at http://docwiki.embarcadero.com/RADStudio/en/Regular_Expressions.

With regular expressions, perhaps you'll need an external tool to test the...