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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
The Regular Expression Visualizer, Simulator & Cross-Compiler Tool
This article is part of Series On Regular Expressions. For more examples of regular expressions to visualize, check out this this list of Regular Expression Test Cases. Your Regex: String To Search: Generate New Random Matching String The Regex As A C Program Common C Code For All Regular Expressions The C source code below is the common code that is required by any of the code samples that are g
はじめにいまや正規表現というのは自動化だけではなく、様々なアプリケーションの文書上での検索／置換機能で利用できる事も多い基本的な機能となりました。もちろん自動処理においても特定の文字列を抽出・置換等に利用可能で、プログラミング上でも上手く使えば処理を簡潔に書けるようになる事も多くあります。 CCアプリケーションでは、Indesignにおける検索置換機能や段落スタイルにおける正規表現スタイル等の様に今や必須の機能となっています。また、CCアプリケーションだけではなく各スクリプト言語においてもサポートされており、自動処理においてはテキスト加工作業においては必須の技術となりますのでしっかりと押さえておきたいものです。 と、まあ、ここまでの文章を読んで頂いた方の中には「あれっ？」て思った人もいらっしゃるかと思います。この記事は過去に自動化総合フォーラムに寄稿したものの再録です。2019年9月のAd
GitHub - mathiasbynens/emoji-regex: A regular expression to match all Emoji-only symbols as per the Unicode Standard.
const emojiRegex = require('emoji-regex'); // Note: because the regular expression has the global flag set, this module // exports a function that returns the regex rather than exporting the regular // expression itself, to make it impossible to (accidentally) mutate the // original regular expression. const text = ` \u{231A}: ⌚ default emoji presentation character (Emoji_Presentation) \u{2194}\u{
The Regular Expression Denial of Service (ReDoS) cheat-sheet
IntroductionThis post is intended as a “technical two-pager” to summarize a security vulnerability called Regex-based Denial of Service (AKA Regex DoS, ReDoS). There are a variety of write-ups about ReDoS, but I’m not aware of a good one-stop-shop with a higher-level treatment of all aspects of the subject. I have included links at the end to more detailed treatments. I have used headings liberall
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Amazon CloudWatch Logs announces regular expression filter pattern syntax support
We are excited to announce regular expression support for Amazon CloudWatch Logs filter pattern syntax, making it easier to search and match relevant logs. Customers use filter pattern syntax today to search logs, extract metrics using metric filters, and send specific logs to other destinations with subscription filters. With today’s launch, customers will be able to further customize these opera
Regular Expression Improvements in .NET 7 - .NET Blog
A friend once quipped to me that “computer science is entirely about sorting and searching”. While that’s a gross overgeneralization, there’s a grain of truth to it. Searching is, in one way, shape, or form, at the heart of many workloads, and it’s so important that multiple domain-specific languages have been created over the years to ease the task of expressing searches. Arguably none is more ub
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正規表現（Regular Expression）について – Automation Skill
Regular Expression Engine Comparison Chart
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