Rubular: a Ruby regular expression editor and tester
Rubular is a Ruby-based regular expression editor. It's a handy way to test regular expressions as you write them. To start, enter a regular expression and a test string. Or you can try an example.
Rubular is a Ruby-based regular expression editor. It's a handy way to test regular expressions as you write them. To start, enter a regular expression and a test string. Or you can try an example.
Scriptular is a javascript regular expression editor. Inspired by Rubular it gives you a simple way to test javascript regular expressions as you write them. Start by entering a regular expression and then a test string. Or give this example a try. Learn more about regular expressions in javascript.
Regular Expression
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Fluentular: a Fluentd regular expression editor
Regular Expression Test String Custom Time Format (See also ruby document; strptime) Example (Apache) Regular expression: ^(?<host>[^ ]*) [^ ]* (?<user>[^ ]*) \[(?<time>[^\]]*)\] "(?<method>\S+)(?: +(?<path>[^ ]*) +\S*)?" (?<code>[^ ]*) (?<size>[^ ]*)(?: "(?<referer>[^\"]*)" "(?<agent>[^\"]*)")?$ Time Format: %d/%b/%Y:%H:%M:%S %z
Regular Expression Matching with a Trigram Index or How Google Code Search Worked
Regular Expression Matching with a Trigram Index or How Google Code Search Worked Russ Cox rsc@swtch.com January 2012 Introduction In the summer of 2006, I was lucky enough to be an intern at Google. At the time, Google had an internal tool called gsearch that acted as if it ran grep over all the files in the Google source tree and printed the results. Of course, that implementation would be fairl
Visualize Export Image Embed On My Site! IgnoreCase Multiline GlobalMatch
Just copy and paste the email regex below for the language of your choice. Feeling hardcore (or crazy, you decide)? Read the official RFC 5322, or you can check out this Email Validation Summary. Note there is no perfect email regex, hence the 99.99%. General Email Regex (RFC 5322 Official Standard) (?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\
Regular Expression Matching Can Be Simple And Fast (but is slow in Java, Perl, PHP, Python, Ruby, ...) Russ Cox rsc@swtch.com January 2007 Introduction This is a tale of two approaches to regular expression matching. One of them is in widespread use in the standard interpreters for many languages, including Perl. The other is used only in a few places, notably most implementations of awk and grep.
ReJax - Easiest Regular Expression Tester. Ever.
Have a pattern you want to test? Give it a shot. ReJax does one thing and one thing well: pattern testing. Updated June 27th, 2007 ReJax has been down for a while, but is back up now. Sorry for the trouble :) Supported languages: JavaScript PHP 5 PCRE PHP 5 POSIX Ruby - BETA!! PERL 5 UNIX Shell Pattern It is not necessary to enter the beginning and ending slashes in the pattern field. Not all modi
This application requires the Flash plugin. If the plugin is already installed, click here. Warning: include(../../includes/footer.php) [function.include]: failed to open stream: No such file or directory in /home/.sidestep/osteele/osteele.com/tools/reanimator/index.php on line 32 Warning: include() [function.include]: Failed opening '../../includes/footer.php' for inclusion (include_path='.:/usr
HiFi Regex Tester - Live JavaScript Regular Expression Tester
This tool was created to help developers learn, test, and write regular expressions. It is written entirely in JavaScript, HTML, and CSS to provide live validation and match feedback on your regexs. This tool relies on JavaScript's regular expression engine which uses perl regex syntax. Regular Expression Validator As you type your regular expression the background of the box will indicate whether
regular expression editor tool
Regular Expression Library -- presented by ASPSmith.com Training
Expresso is useful for learning how to use regular expressions and for developing and debugging regular expressions prior to incorporating them into C# or Visual Basic code. Expresso Build complex regular expressions by selecting components from a palette Test expressions against real or sample input data Display all matches in a tree structure, showing captured groups, and all captures within a g
re — Regular expression operations — Python 3.7.1rc2 documentation
re — Regular expression operations¶ Source code: Lib/re/ This module provides regular expression matching operations similar to those found in Perl. Both patterns and strings to be searched can be Unicode strings (str) as well as 8-bit strings (bytes). However, Unicode strings and 8-bit strings cannot be mixed: that is, you cannot match a Unicode string with a bytes pattern or vice-versa; similarl
JavaScript RegExp Example: Online Regular Expression Tester
Feel free to test JavaScript’s RegExp support right here in your browser. Obviously, JavaScript (or Microsoft’s variant JScript) will need to be enabled in your browser for this to work. Since this tester is implemented in JavaScript, it will reflect the features and limitations of your web browser’s JavaScript implementation. If you’re looking for a general-purpose regular expression tester suppo
Regular Expression Matching with a Trigram Index or How Google Code Search Worked Russ Cox rsc@swtch.com January 2012 Introduction In the summer of 2006, I was lucky enough to be an intern at Google. At the time, Google had an internal tool called gsearch that acted as if it ran grep over all the files in the Google source tree and printed the results. Of course, that implementation would be fairl
OgreKit -- OniGuruma Regular Expression Framework for Cocoa --
OgreKit -- OniGuruma Regular Expression Framework for Cocoa -- 目次 概要 簡単な使用例 APIの詳細 To Do 更新履歴 Download 共同制作者 謝辞 よくある質問とその回答 注意事項 概要 OgreKitはCocoa用正規表現フレームワークです。 OgreKitはRubyと同等の正規表現処理機能と、高機能検索パネル(screenshot)を提供します。 製作・公開に至った動機は次の通りです。 正規表現は高度なテキスト処理を行うときに必須ですが、Cocoa(やCarbon)には正規表現を扱う機能が欠けています。そのため、独自に正規表現処理機能を実装しているソフトが数多く見受けられます。しかし、それらのソフトの主目的は正規表現を実装することではありませんし、ソフトごとに正規表現の記述規則がまちまちであったり、日本語の
Create Regular Expression Engine - (rudolph-miller)
正規表現エンジンの作り方 (と形式言語とオートマトン). (数式多めなのでPCでの閲覧を推奨.) Regular Expression History Math Regular Language & Regular Expression Ring Semi-ring Idempotent semi-ring Kleene algebra Language Regular Language Pure Regular Expression Regular Expression => Regular Language Regular Language => Regular Expression Regular Language <=> Regular Expression Regular Language & Finite Automaton Abstract machine Finite au
Regular Expression Matching Can Be Simple And Fast (but is slow in Java, Perl, PHP, Python, Ruby, ...) Russ Cox rsc@swtch.com January 2007 Introduction This is a tale of two approaches to regular expression matching. One of them is in widespread use in the standard interpreters for many languages, including Perl. The other is used only in a few places, notably most implementations of awk and grep.
Regular Expression Test Drivefor Java Developer Java正規表現の動作確認ができるサイトです。正規表現をその場でテストできます
Regular Expression Test Drivefor Java Developer Java正規表現の動作確認ができるサイトです。正規表現をその場でテストできます
Upcoming regular expression features | Blog | Chrome for Developers
ES2015 introduced many new features to the JavaScript language, including significant improvements to the regular expression syntax with the Unicode (/u) and sticky (/y) flags. But development has not stopped since then. In tight collaboration with other members at TC39 (the ECMAScript standards body), the V8 team has proposed and co-designed several new features to make regular expressions even m
pythex is a quick way to test your Python regular expressions. Try writing one or test the example.
Blue highlights show the match results of the regular expression pattern: /r[aeiou]+/g (lower case r followed by one or more lower-case vowels). A regular expression (shortened as regex or regexp),[1] sometimes referred to as rational expression,[2][3] is a sequence of characters that specifies a match pattern in text. Usually such patterns are used by string-searching algorithms for "find" or "fi
Eclipse用正規表現チェッカー"Regular Expression Tester v1.3"がリリース | エンタープライズ | マイコミジャーナル
Eclipse上で正規表現のテストを行うためのプラグイン「Regular Expression Tester」の最新バージョンである1.3がリリースされた。Regular Expression TesterのWebサイトから無償でダウンロードできる。 Regular Expression Testerの画面 このプラグインは、Eclipse上で手軽に正規表現のテストを行うことを目的にSebastian Zartner氏が開発しているもので、以下のような機能を備えている。 入力した文字や文章において、正規表現式にマッチした部分をカラーで表示する機能 パターンフラグ(大文字小文字の区別、複数行モードなど)のサポート LiveEval(キー入力と同時に評価やテストを行う)機能 後方参照の置換を含む、4種類のマッチモード このプラグインの導入は、Webサイトからダウンロードしたzipファイルを解
Regular Expression Library
Regular Expression Pocket Reference Ideal as an introduction for beginners and a quick reference for advanced programmers, Regular Expression Pocket Reference is a comprehensive guide to regular expression APIs for C, Perl, PHP, Java, .NET, Python, vi, and the POSIX regular expression libraries. This book offers programmers a complete overview of the syntax and semantics of regular expressions, wh
CVE-2021-41817: Regular Expression Denial of Service Vulnerability of Date Parsing Methods
CVE-2021-41817: Regular Expression Denial of Service Vulnerability of Date Parsing Methods Posted by mame on 15 Nov 2021 We have released date gem version 3.2.1, 3.1.2, 3.0.2, and 2.0.1 that include a security fix for a regular expression denial of service vulnerability (ReDoS) on date parsing methods. An attacker can exploit this vulnerability to cause an effective DoS attack. This vulnerability
Abstract This document is an introductory tutorial to using regular expressions in Python with the re module. It provides a gentler introduction than the corresponding section in the Library Reference. Introduction¶ The re module was added in Python 1.5, and provides Perl-style regular expression patterns. Earlier versions of Python came with the regex module, which provided Emacs-style patterns.
GitHub - microsoft/BlingFire: A lightning fast Finite State machine and REgular expression manipulation library.
Bling Fire Tokenizer provides state of the art performance for Natural Language text tokenization. Bling Fire supports the following tokenization algorithms: Pattern-based tokenization WordPiece tokenization SentencePiece Unigram LM SentencePiece BPE Induced/learned syllabification patterns (identifies possible hyphenation points within a token) Bling Fire provides uniform interface for working wi
txt2re: headache relief for programmers :: regular expression generator
(perl php python java javascript coldfusion c c++ ruby vb vbscript j# c# c++.net vb.net) I hate regular expressions. I come across them fairly regularly in my job and every time I think 'not again'. I find the syntax of regular expressions impossible to remember - and the surrounding code in each language is completely different too. Each language has its own distinct way of doing it. Escaping cha
If you know regular expressions, you might find this to be geek fun. A friend of mine posted this, without a solution, but once I started working it, it seemed put together well enough it was likely solvable. Eventually I did solve it, but not before coding up a web interface for making it easier to interact with, which I recommend using if you are going to try this out. Or just print it out. Clic
google/re2j · GitHub - linear time regular expression matching in Java
RE2 is a regular expression engine that runs in time linear in the size of the input. RE2/J is a port of C++ library RE2 to pure Java. Java's standard regular expression package, java.util.regex, and many other widely used regular expression packages such as PCRE, Perl and Python use a backtracking implementation strategy: when a pattern presents two alternatives such as a|b, the engine will try t
Regular Expression Library
Welcome to RegExLib.com, the Internet's first Regular Expression Library. Currently we have indexed 4149 expressions from 2818 contributors around the world. We hope you'll find this site useful and come back whenever you need help writing an expression, you're looking for an expression for a particular task, or are ready to contribute new expressions you’ve just figured out. Thanks! Add Regex
GitHub - hokein/Automata.js: A regular expression converter
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asPredicate() パターンにマッチするものが1つでもあるかどうかを判定する関数を返す。（JDK1.8）[2014-04-15] Pattern pattern = Pattern.compile("123"); Predicate<String> predicate = pattern.asPredicate(); System.out.println(predicate.test("abc123def")); ↓実行結果 true これは、以下の関数（ラムダ式）と同じ。 Pattern pattern = Pattern.compile("123"); Predicate<String> predicate = s -> pattern.matcher(s).find(); asMatchPredicate() パターンに（完全に）マッチするかどうかを判定する関数を返す。（Ja
Gregable.com: Regular Expression Crossword Puzzle
(ND|ET|IN)[^X]* [CHMNOR]*I[CHMNOR]* P+(..)\1.* (E|CR|MN)* ([^MC]|MM|CC)* [AM]*CM(RC)*R? .* .*H.*H.* (DI|NS|TH|OM)* .*PRR.*DDC.* F.*[AO].*[AO].* (HHX|[^HX])* (O|RHH|MM)* ([^EMC]|EM)* .* .*OXR.* C*MC(CCC|MM)* .*LR.*RL.* [^C]*[^R]*III.* .*SE.*UE.* (...?)\1* (S|MM|HHH)* ([^X]|XCC)* [^M]*M[^M]* (RR|HHH)*.? (RX|[^R])* N.*X.X.X.*E [CEIMU]*OH[AEMOR]* R*D*M* .*(.)C\1X\1.* .(C|HH)* [^C]*MMM[^C]* .*G.*V.*H.*
Regular Expression Matching: the Virtual Machine Approach Russ Cox rsc@swtch.com December 2009 Introduction Name the most widely used bytecode interpreter or virtual machine. Sun's JVM? Adobe's Flash? .NET and Mono? Perl? Python? PHP? These are all certainly popular, but there's one more widely used than all those combined. That bytecode interpreter is Henry Spencer's regular expression library an
Noulakaz The blog of Avinash, Christina, Anya and Kyan Meetoo. Regular expressions are extremely powerful. This is something I read at least once or twice every day while reading articles and blogs on the Web. While browsing today, I found this page which thoroughly describes the use of the regular expression /^1?$|^(11+?)\1+$/ in Perl to check if a number is prime or not!!! /^1?$|^(11+?)\1+$/ To
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A regular expression to check for prime numbers