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ReDoS. A regular expression denial of service ( ReDoS) [1] is an algorithmic complexity attack that produces a denial-of-service by providing a regular expression and/or an input that takes a long time to evaluate. The attack exploits the fact that many [2] regular expression implementations have super-linear worst-case complexity; on certain ...
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 "find and replace" operations on strings, or for input validation.
Java Apache java.util.regex Java's User manual: Java GNU GPLv2 with Classpath exception jEdit: JRegex JRegex: Java BSD MATLAB: Regular Expressions: MATLAB Language: Proprietary Oniguruma: Kosako: C BSD Atom, Take Command Console, Tera Term, TextMate, Sublime Text, SubEthaEdit, EmEditor and jq Pattwo Stevesoft Java (compatible with Java 1.0 ...
Database search with regular expressions support Indexed search Search folders [Note 2] IMAP ticker tray icon tooltip sound Search IDLE Alpine: mbox, mbx, MIX, maildir (with patches), MMDF, tenex, mtx, MH, mx, news, phile ? Yes Partial ? ? ? Yes Yes No ? No Yes Yes Yes No Becky! Internet Mail: mbox? ? No Yes ? Yes Yes ? ? ? Yes ? Yes Yes Yes ...
Backus–Naur form. In computer science, Backus–Naur form ( / ˌbækəs ˈnaʊər /) (BNF or Backus normal form) is a notation used to describe the syntax of programming languages or other formal languages. It was developed by John Backus and Peter Naur. BNF can be described as a metasyntax notation for context-free grammars.
Bounce Address Tag Validation. In computing, Bounce Address Tag Validation ( BATV) is a method, defined in an Internet Draft, for determining whether the bounce address specified in an E-mail message is valid. It is designed to reject backscatter, that is, bounce messages to forged return addresses.
Bean Validation defines a metadata model and API for JavaBean validation. The metadata source is annotations, with the ability to override and extend the meta-data through the use of XML validation descriptors. Originally defined as part of Java EE, version 2 aims to work in Java SE apps as well. Java Bean Validation ( JSR 303) originated as a ...
Email authentication, or validation, is a collection of techniques aimed at providing verifiable information about the origin of email messages by validating the domain ownership of any message transfer agents (MTA) who participated in transferring and possibly modifying a message. The original base of Internet email, Simple Mail Transfer ...