Every regular language that is described by non-deterministic finite automata can also be described by deterministic finite automata. Regular expressions [6] also denote regular languages, which consists of strings of particular type. The patterns of strings described by regular expression are exactly ...
International Conference on Implementation and Application of Automata Abstract In this article we generalize the concepts of position automaton and ZPC structure to the regularK-expressions. We show that the ZPC structure can be built in linear time in the size of the expression and that the assoc...
Regular expressionRESyntax treeBerry-SethiAmbiguityParsingSummary: This new parser generator for ambiguous regular expressions ({\\\it RE}) formally extends the Berry-Sethi ({\\\it BS}) algorithm into a finite-state device that specifies the syntax tree(s). We extend the local testability proper...
Rytter. W., “On the parallel transformations of regular expressions to nondeterministic finite automata”, Information Processing Letters 31 pp. 103–109 ... W Rytter - 《Information Processing Letters》 被引量: 19发表: 1989年 High Speed Regular Expression Matching Engine with Fast Pre-Processing...
pushdown automataquery languagestree searchingSPEX pushdown transducerSPEX regular path expression evaluationXML streamsXPath-like qualifiers... O Dan,T Kiesling,F Bry - International Conference on Data Engineering 被引量: 133发表: 2004年 XML parser Preferably, the grammar of the source code file is ...
Regular Expression的发明者Stephen Cole Kleene在最原始的论文 Representation of events in nerve nets ...
Hyperscan makes use of many different techniques to try to make the regular expression matching task tractable for large numbers of regular expressions. We have not found a single, elegant automata approach that handles arbitrary regular expressions in arbitrary number – although we are still looking...
正则表达式,regular expression 1)regular expression正则表达式 1.The normal form of regular expressions of finite automata;有限自动机的正则表达式的范式 2.WebMail monitor and audit based on regular expression;基于正则表达式的WebMail监控与审计 3.Realization and Application of Regular Expression in SQL Server...
Visualize the Thompson-McNaughton-Yamada construction NFA for a given regular expression. The subset construction algorithm is also applied to the resultant NFA, resulting in a language-equivalent deterministic finite-state automata (DFA).Enter a regular expression: e.g. a*(b|cd)* ...
Regular expression matching is a crucial task in several networking applications. Current implementations are based on one of two types of finite state machines. Non-deterministic finite automata (NFAs) have minimal storage demand but have high memory bandwidth requirements. Deterministic finite automata...