Regular Expressions

regular-expression

Great Reads

Ultra-Rapid PHP Application Development

by Christoph Buenger

Describes PHP application development with the free Scavix Web Development Framework (Scavix-WDF).

How to Build a Regex Engine in C#

by honey the codewitch

Build a feature rich, non-backtracking regular expression engine and code generator in C#

Reggie: A Non-Backtracking Streaming Regular Expression Code Generator

by honey the codewitch

Embed fast streaming C# code to match text based on inputted regular expressions

Regex to remove someone's overzealous use of regions.

by Daniel Vaughan

A Visual Studio regex to remove someone's overzealous use of regions in VS. Find and replace: (^.*\#region.*$)|(^.*\#endregion.*$) Remember to enable regular expressions in the Visual Studio find and replace dialog.

Latest Articles

Data Validation with Visual FA

by honey the codewitch

How to validate fields for things like data entry applications.

Visual FA Part 4: Generating Matchers and Lexers with the Visual FA C# Source Generator

by honey the codewitch

Easily add lexers to your project with this simple drop in NuGet package and a few annotations

Visual FA Part 3: The Code Behind It All

by honey the codewitch

In this article, we explore the inner workings of Visual FA

Visual FA Part 2: Using Visual FA to Analyze Automata and to Process Text

by honey the codewitch

Continuing in the Visual FA series, now we explore API fundamentals

All Articles

top

Regular Expressions

Ultra-Rapid PHP Application Development

31 Oct 2014 by Christoph Buenger

Describes PHP application development with the free Scavix Web Development Framework (Scavix-WDF).

SQL

HTML

Javascript

MySQL

How to Build a Regex Engine in C#

21 Nov 2019 by honey the codewitch

Build a feature rich, non-backtracking regular expression engine and code generator in C#

.NET

Dev

regular-expression

Reggie: A Non-Backtracking Streaming Regular Expression Code Generator

10 Nov 2021 by honey the codewitch

Embed fast streaming C# code to match text based on inputted regular expressions

A Regular Expression Engine in C#

31 Mar 2019 by honey the codewitch

A Non-Backtracking Regular Expression Engine for .NET (Core)

FSM Explorer: Learn Regex Engines and Finite Automata

2 Jan 2024 by honey the codewitch

This article presents a program to help visualize regular expression mechanics.

regular-expression

Fun With State Machines: Incrementally Parsing Numbers Using Hacked Regex

2 Jan 2021 by honey the codewitch

Hoodwink your computer into doing your work for you using regular expressions

rxcg: A Simple Text Matcher C Code Generator for IoT

15 Nov 2023 by honey the codewitch

Generate tight C code to match text based on regular expressions

IoT

regular-expression

WiFi Password Recovery and Management Tool

27 Sep 2019 by Mohamed Kalmoua

In this article, I will discuss a WiFi password recovery and management tool that I created in WPF using Visual Studio 2019.

Visual FA Part 1: Understanding Finite Automata

15 Jan 2024 by honey the codewitch

In this article, we will use my Visual FA solution to explore finite automata concepts used for finding patterns in text.

regular-expression

Lex: An Optimizing Compiler for Regular Expressions

3 Feb 2020 by honey the codewitch

A Pike virtual machine and optimizing compiler for regular expressions using an NFA engine

How to Make an LL(1) Parser: Lesson 2

14 Jul 2019 by honey the codewitch

Creating a simple parser in 3 easy lessons

FA: A Unicode Automata and Regular Expression Engine

1 Feb 2020 by honey the codewitch

Add non-backtracking fast DFA regular expression and finite state automata to your projects

FastFA: A Unicode Enabled Regex Engine for Code Generators

25 Dec 2021 by honey the codewitch

Explore, run, and manipulate DFA regular expressions from graphs, to state machines with this library

.NET

text

regular-expression

StringBox Control with Keystroke Validation

22 Jul 2020 by siliconvideo

This StringBox control implements keystroke validation using regular expressions and a touch of glue logic

CollectionRegex -- Regular Expressions for Collections

16 Apr 2012 by Lutosław

Find patterns in a sequence of objects using a familiar language.

InfoIP a tool to find your WAN IP

8 Sep 2014 by cogi83

A SW to send your WAN IP and other info via email

Chronological Expressions (ChronEx) for Event Logs

11 Jun 2018 by Member 10481957

Chronological Expressions is a RegEx inspired Pattern Matching Library and Specification for query event logs

.NET

logging

regular-expression

Dismantling Reggie

8 Nov 2021 by honey the codewitch

Deep dive some advanced source generation in a real world application

The Regular Expression Skidmarklet

12 May 2012 by funboysclub

From Pins to Poops, your bookmark bar can do more. Read about the Skidmarklet... a JavaScript Bookmarklet and lessons in RegEx.

Javascript

regular-expression

SQL Object Dependencies with Simple RegEx and Some Algo Magic

10 Jan 2018 by ASkaeff

A simple yet powerful tool to analyze SQL object dependencies in quite a fast and reliable manner.

SQL

database

regular-expression

Visual FA Part 2: Using Visual FA to Analyze Automata and to Process Text

18 Jan 2024 by honey the codewitch

Continuing in the Visual FA series, now we explore API fundamentals

regular-expression

Visual FA Part 3: The Code Behind It All

20 Jan 2024 by honey the codewitch

In this article, we explore the inner workings of Visual FA

regular-expression

Visual FA Part 4: Generating Matchers and Lexers with the Visual FA C# Source Generator

4 Feb 2024 by honey the codewitch

Easily add lexers to your project with this simple drop in NuGet package and a few annotations

code-generation

regular-expression

Rolex (Interim Release 0.4): A Lexer Generator in C#

31 Jan 2020 by honey the codewitch

Add fast scanners/tokenizers to your C# project

NumberBox Class for Number Entry/Display

7 Apr 2020 by siliconvideo

A NumberBox class for number entry, display, range limits and keystroke validation including binary

An Improved Algorithm for Converting State Machines to Regular Expressions

6 Jan 2022 by honey the codewitch

This article describes an improvement to the state removal algorithm for converting FAs to regular expressions

text

regular-expression

Line Counting Trickery within Visual Studio

10 Oct 2013 by Rion Williams

This post will cover how to get the number of lines of code within your application in both premium and non-premium versions of Visual Studio through either the integrated Code Metrics tools (Premium-versions only) or by leveraging a crafty Regular Expression and without having to resort to USI.

WebSite Scraping

1 Jun 2013 by shah vatsal

Website scraping using Watin

Regex Logviewer

16 Jun 2013 by Amit Bezalel

Using the power of regex to parse your logs

A Tiny Expression Evaluator

18 Aug 2011 by Herre Kuijpers

A utility that allows you to enter simple and more complex mathematical formulas which will be evaluated and calculated on the spot

Rolex: Unicode Enabled Lexer Generator in C#

20 Nov 2023 by honey the codewitch

Generate fast, easy to use lexers/scanners in major .NET languages

LINQ to Regex

12 Aug 2015 by Josef Pihrt

LINQ to Regex library provides language integrated access to the .NET regular expressions.

.NET

LINQ

regular-expression

Learn Regular Expressions (RegEx) with Ease

24 Feb 2014 by Shivprasad koirala

In this article we will try to understand what regex is and how to remember those cryptic syntaxes easily.

A lightweight recursive text template data formatter

13 Mar 2013 by Michael D Bray

Filling in text templates from a data source.

Math Parser .NET

30 Oct 2011 by icemanind

A very easy to use mathematical parser library for .NET.

Fastest method to remove all whitespace from Strings in .NET

30 Jul 2015 by Felipe R. Machado

There are countless ways to trim all whitespace from a string, but which one is faster?

Advanced Classes in C

29 Jun 2013 by Ghosuwa Wogomon

An example of a clean way to implement classes in C

Text Template Transformation Engine / Code Generation Tool in C#

8 May 2021 by Ryan Scott White

A simple drop-in function that provides T4 like template based text generation.

Easily Create Your Own Parser

9 Jul 2011 by icemanind

Create a hand made parser in VB.NET or C# easily and fast

Compiling DFA Regular Expressions into .NET Assemblies

6 Jan 2024 by honey the codewitch

Adventures in Reflection.Emit! Here I present a regular expression engine with a Compile() feature.

compilation

regular-expression

Enhanced String Handling

16 Dec 2010 by Avi Farah

Allow for constructs within a string to be programmatically evaluated for a final string value

I don't like Regex...

17 Jan 2013 by Guirec

This article will introduce you with a set of 3 simple extension methods that can help you getting rid of Regex in many situations

Parsing Latitude and Longitude Information

21 Feb 2012 by Samuel Cragg

Parses user input and extracts latitude and longitude information, taking into account the user's language and regional settings

.NET

processing

regular-expression

html2struct Class Library

5 Nov 2018 by thorssig

html2struct parses HTML code into a simple tree-like structure of objects and provides a little tool-set for extracting data from it

User credential onboarding with KnockoutJS

7 Aug 2013 by DataBytzAI

A cool way to batch upload new user credentials to a web-app using KnockoutJS

PParser - Part 2

5 Sep 2015 by InvisibleMedia

Specify grammatical contexts

m.Facebook with C#

12 Dec 2014 by dontumindit

Performs basic function on your Facebook Profile from C# code without use of Facebook API

Pck/FA: A Regular Expression and Finite State Engine in C#

5 Aug 2019 by honey the codewitch

A regex and finite state engine as part of PCK

Regex as a Tiny "Threaded" Virtual Machine

17 Jan 2020 by honey the codewitch

A Pike VM for running non-backtracking NFA regular expressions in C#

Inserts Tabular Text from Text Files into Microsoft Word Table

26 Aug 2010 by Bassam Alugili

Inserts tabular text into Microsoft Word document

Using Regular Expressions in C# .NET

16 Jul 2010 by Anupam Banerji

Explains regular expressions, and some of the common ways to use them.

Why I Targeted T-SQL: A Confession

11 Nov 2021 by honey the codewitch

Silly SQL Tricks, Mistakes and Other Nonsense

SQL

parsing

regular-expression