Regular expressions are an essential part of any programmer’s toolkit. These are very useful kits for web developer to validate, match or replace text. To help user there are number of tools and resources are developed. The tools and resources like Greedliness / Laziness, Back referencing, Word boundaries, Named Groups, Word Boundaries, Atomic Groups, Recursion, Call Backs, Commenting, Regex helps to test regular expression in a different ways.
If you would like to modify a htaccess file to make clean URLs, or some other advanced works as filtering RSS or other data. Some resources and tools given bellow which let you step forward to achieve good mastery over regex.
With the enormous technology development, everything is being made simple, accessible, and user-friendly. Regular expression also known as ‘regexp’ or ‘regex’ is one such method that offers a brief and adaptable mode of text strings to describe a search pattern with minimal effort. The idea of regular expression is to provide great flexibility in matching the text patterns or strings and hence provide a powerful approach for an easy search.
The answer is very simple. It is one of most powerful tools a programmer can think of! However just take a look at some of the reasons :
There are the two main types of regular expressions. These provide you with all the required matches according to your need. Either you want to match a single character, or a range of characters in the desired pattern. You are exposed to Perl-derivative regular expressions, Simple regular expressions, Posix character classes, and Posix basic regular expressions with the apt examples for you to learn to use the regular expressions appropriately. Expressive power and compactness
Before you can decide on the regex engine that you want to choose, it is advised to go through the comparison chart to know the features offered by various regex engines. This gives you the entire list of libraries, list of languages that are available with the regex support, and comparison of other features. Comparison of regular expression engines
You ought to know certain basic terms before you can use the regular expressions. Some of the basic easy guidance along with definitions is provided with sufficient examples. Go ahead and get the feel of the basics before you proceed to the next step!
Regular expression references display a list of books and references.
Display pattern provides 38 categories in expression and description for each category.
This displays regex useful regular expression, in that board index, programming, regex is mentioned. Each contains details of resources. And we can also see valuable suggestions given by the user.
A Regex resource is a collection of many tools and resources. Some of those are like, the regulator, Fric gunperson’s RegEx work bench, Jregex tester, the RegEx coach, expresso, rework etc.
Here is a detailed description about using regular expression in web work. There are many general resources and references like, Mastering regular expression books can be comforting when tackling intimidating topics, Pocket reference book, Resources on regular expressions, Brief guide to regular expression. In additions to these details there is description on dual approaches, application and scripting languages.
Many regular expression resources like the 30 minute regex tutorial, regular expression info, Microsoft regular expression webcast, regexlib, NET framework regular expression reference, mastering regular expression listed here.
Programming languages and libraries, databases, general applications with notable support for regular expressions, specialized tools and utilities for working with regular expressions are some important ingredients in this regular expression info tools. These tools and utilities have regular expressions as the core of their functionality.
This is about mastering regular expression, which covers regular expression syntax, mechanics of expression-processing, common pitfalls, performance issues, and implementation of specific differences.
To over come some shortcomings of simple regular expression this advanced regular expressions. It discusses eight commonly used concepts such as, greedliness/laziness, back reference, named groups, word boundaries, atomic groups, recursion, callbacks and commenting.
Here you can find a regular expression user guide it many contents namely a gentle introduction, apache browser recognition, posix standard character classes, commonly available extensions, substances groups and back references, regular expression tester, common example, notes etc.
The complete regular expression guide is mainly for web developer and web administrator. Developers can use this to parse text files and administrator can use it for search logs, automate boring tasks and sniff the net work traffic etc.
Virtuosi media provides 37 PHP tutorials to both beginners to advance. This gives all the information about validation, database interaction, and how to create simple scripts like a blog or login page. It also covers OOP, frame work development, and Ajax.
Sample regular expression gives more detailed examples, they are numeric ranges, matching a floating point numbers, matching an email address, match valid dates, finding or verifying credit card numbers, matching complete lines, removing duplicate lines or items, regex examples for processing code.
Regular expression tutorial teaches you how to create your own regular expression. It starts with most basic concepts and ends with most advanced and specialized capabilities.
Regular expression examples teach you how to get mastery over regular expression. It starts with simple examples and continues wide list of cases.
Php regular expression shows how to use php regular expression in your script. Here two types of regular expression mentioned one is Posix and another is Perl compatible. To make easy learning syntax it lists some characters of syntax.
Demystifying regular expression describes simple usage of regular expression. Its prime intention intention is let user to try most powerful search and replace paradigm.
The joy of regular expression introduces you regex syntax. It describes contents like, resources, background, why do we need regular expression?, grasping the concept, learning by doing, positive matching, expression delimiters and pattern modifiers, exact match, validating a user name.
This is the second part of Sitepoint here it continues its quest for hunting many other issues. Its main aim is to provide information on web designing for both beginner and experts.
This article is about essential aids for building and testing regular expression in unix system. And it also describes some tools and techniques like highlighting matches, showing only the matches and not the lines, calling a wizard, studying doc.
This regular expression tutorial teaches you all aspect of regular expressions. Such as how a regex engine works internally, character classes or character sets, the dots, start of string and end of string anchors etc…
It is equally suitable teaching tool for beginner or for the advanced programmer or web designer with an expertise and extensive knowledge of regular expressions.
It is interactive window application that designed to help programmer to learn, develop or design regular expression.
Regex tester is tool that offers options like single line, case insensitive, multiline, ignore whitespace in expression and explicit capture.
This offers some development functions to test and create regular expression with some tools like case sensitive, global and multiline search, color highlighting of found expression, display of special characters etc.
Html2regexp is a ruby program of generating regular expressions for extracting HTML elements.
It’s a regular expression workbench. The main features it has replace, Multiple, Split, Scan, Parse and Graph.
This service uses PHP regular expression functions as a base for its operations. It can be useful for programmers of other languages as well.
An innovative and intuitive tool for learning, writing, and testing Regular Expressions. It includes some other features; they are-shows results as you type, roll over your expression to see information on specific elements, your saved expressions are saved locally.
The Regex Coach is a graphical application for Windows which can be used to experiment with (Perl-compatible) regular expressions interactively, as you are make change in application all other parts are instantly update.
Rubular is a Ruby-based regular expression editor. It’s a handy and simple way to test your regular expressions.
Using this explorer you can find an existing regular expression example, create your own regular expression example and save a regular expression to the community.
It is a fun little tool that shows a graphic representation of the finite state machines that a regular expression engine uses to perform a regular expression search.
This tool is your perfect friend for working with regular expressions. It leads to integrate with favorite searching and editing tool. You can quickly test any regex on sample strings and files.
This is a user friendly regex generator. This script runs on top of JDC 1.0.3 in Internet Explorer which is why it is executed slightly faster in Firefox, Opera and Safari.
One of the web based python regular expression tool for rapidly testing regular expressions. Includes support for python regex specific functions such as dotall and unicode.
RegexMagic makes sure to generate a regular expression that works with it. It is also generate snippets in many programming languages that you can copy and paste directly into your source code to implement your regular expression.
This is about regular expression basics. It gives list of quantifier control numbers of characters. Signs for start line and end line, single character and any number of characters, 0 0r 1 of the character optional, alternation, character class, negated character class, grouping are mentioned clearly.
The Regular Expressions Cheat Sheet is a quick reference guide for regular expressions, including symbols, ranges, grouping, assertions and some sample patterns.
There is description on regular expression syntax like characters, character class and character sets, dot, anchor, word boundaries, alternation and quantifier.
This cheat sheet is about some signs for basic syntax and for POSIX character classes and Perl-style Metacharacters.
Net regular expression cheat sheets define metacharacters, and makes list of basic signs for metacharacter and character classes.
Regex-cheat sheet.pdf is a quick reference guide for regular expression. It provides guidance on literal character, character group, counts, alternation, lookahead and lookbehind, grouping and back references, Posix character class, non-printing character class, anchor etc.
Mysql-regular expression- cheat sheet defines how regular expression in mysql are used within REGEXP and RLIKE sections of where clauses in the selection of records for display, update or deletion. It also displays operator types with example and description.
Regex cheat sheet describes what regular expression cheat sheet is.
Regex-cheat-sheet.aspx defines metacharacter, character escape and character classes.
Scriptmonkeys regular expression cheat sheet displays a chart, where regular expression basics are listed.
Python-regular-expression-cheat-sheet stored some codes and HTML. You can share it with other programmer and designer.
If you seek for an excellent resource for string manipulation and validation, regular expressions is the answer for it. Hundreds of online resources provide you with more than needed information to start from scratch and reach perfection.
While compiling this list, it’s always a possibility that we missed some other great resources. Feel free to share it with us.