(bb|[^b]{2}); [Tt]hat is the \?\. Regular expressions are great tools for testers. I have found them useful for describing GUI objects to GUI test automation tools. I have found them useful for automation results validation. I have found them useful for extracting data I care about from voluminous log files. I've also found them useful for manipulating data.What are regular expressions? Regular expressions are patterns for finding text of interest. They are supported by many test tools, system utilities, text editors, and programming languages.Regular expressions can include the following meta characters to define patterns.^ Matches the beginning$ Matches the end. Matches any single character* Matches zero or more occurrences of the preceding character\ Escape character? Matches zero or one occurrence of the preceding character+ Matches one or more occurrences of the previous character[ ] Defines a character class[^ ] Defines an exclusion-based character class\{ \} M
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Author: Jeffrey FriedlPaperback: 542 pagesPublisher: O'Reilly Media, Inc.; 3 edition (August 8, 2006) Language: EnglishISBN: 0596528124 Regular expressions are an extremely powerful tool for manipulating text and data. They are now standard features in a wide range of languages and popular tools, including Perl, Python, Ruby, Java, VB.NET and C# (and any language using the .NET Framework), PHP, and MySQL. If you don't use regular expressions yet, you will discover in this book a whole new world of mastery over your data. If you already use them, you'll appreciate this book's unprecedented detail and breadth of coverage. If you think you know all you need to know about regular expressions, this book is a stunning eye-opener.As this book shows, a command of regular expressions is an invaluable skill. Regular expressions allow you to code complex and subtle text processing that you never imagined could be automated. Regular expressions can save you time and aggravation. They can
Author: Andrew WattPaperback: 768 pagesPublisher: Wrox (February 4, 2005) Language: EnglishISBN: 0764574892 Regular expressions help users and developers to find and manipulate text more effectively and efficiently. In addition, regular expressions are supported by many scripting languages, programming languages, and databases. This example-rich tutorial helps debunk the traditional reputation of regular expressions as being cryptic. It explains the various parts of a regular expression pattern, what those parts mean, how to use them, and common pitfalls to avoid when writing regular expressions. With chapters on using regular expressions with popularWindows platform software including databases, cross platform scripting languages, and programming languages, you'll learn to make effective use of the power provided by regular expressions once you fully comprehend their strengths and potential. What you will learn from this book -Fundamental concepts of regular expressions and how
Author: Ben FortaPaperback: 160 pagesPublisher: Sams; 1st edition (February 28, 2004) Language: EnglishISBN: 0672325667 RegEx is supported in all major development environments (for use in editing and working with code) and will thus appeal to anyone using these tools. In addition, every JavaScript developer should be using RegEx, but most don't as it has never been taught to them properly before.Developers using ASP, C#, ColdFusion, Java JSP, PHP, Perl, Python, and more can (and should) be using RegEx, and so every one of them is a potential reader too. The reader of this book will learn how to:Match characters sets Match repeating characters (using minimums and maximums if needed) Match (or ignore) based on case Build sub-expressions Use all of the special characters Work with excape sequences Use POSIX classes to simplify complex expressions Use back-references Use look-behind operators Sams Teach Yourself Regular Expressions in 10 Minutes is a tutorial book organized into a
Author: Jonathan Gennick, Peter LinsleyPaperback: 64 pagesPublisher: O'Reilly Media, Inc.; 1 edition (September 5, 2003) Language: EnglishISBN: 0596006012 Support for regular expressions in SQL and PL/SQL is one of the most exciting features of Oracle Database 10G. Oracle has long supported the ANSI-standard LIKE predicate for rudimentary pattern matching, but regular expressions take pattern matching to a new level. They provide a powerful way to select data that matches a pattern, as well as to manipulate, rearrange, and change that data. This concise pocket guide is part tutorial and part quick-reference. It's suitable for those who have never used regular expressions before, as well as those who have experience with Perl and other languages supporting regular expressions. The book describes Oracle Database 10G's support for regular expressions, including globalization support and differences between Perl's syntax and the POSIX syntax supported by Oracle 10G. It also prov
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A friend sent me a couple of idiomatic expressions in English, and given the fact that English is not my native language (not a big secret there) these come in hand very useful and thought of sharing them (I know they are not fun as the one in the image below, but are wiser).If you have a website you can use them to display a random idiomatic expression on your website, with the respective explanation. I won't write a tutorial in here about adding that kind of code to your website, but there are a lot of scripts and programs that you can use (for free) to do that. Just pay HotScripts a visit and follow the instructions.Here is the list of idiomatic expressions: Never count your chickens before they are hatched. Meaning: Don’t spend money that you haven’t earned yet. Don’t cry over spilled milk. Meaning: What is done is done. Just make the best of a bad situation, and get on with your life. Never look a gift-horse in the mouth. Meaning: If someone gives you a gift, you are behavi
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