采用正则表达式的四则运算:在VBA环境中,如何使用正则表达式,将正则表达式应用到四则运算中的算是分解中。 Dim r1 As RegExp Dim m1 As Match Dim mc1 As MatchCollection Dim str As String Dim sstr As String Set r = New RegExp Set r1 = New RegExp r.Global = True r1.Global = True r.Pattern = "\w*\([^()]*\)"
Her e's the scenario: you're given the job of checking the pages on a web server for doubled words (such as this this), a common problem with documents subject to heavy editing.
收集常用的正则,大概有3000个 tExpression tDEscr iptION matchs ((19|20)[0-9]{2})-(([1-9])|(0[1-9])|(1[0-2]))-((3[0-1])|([0-2][0-9])|([0-9])) Validate the year month and day. 2008-12-15 ^1+0+$ A simple regular expression to determine if a subnet mask is contiguou
This book is part tutorial, part reference manual, and part story, depending on when you use it. Readers familiar with regular expressions might feel that they can immediately begin using this book as a detailed reference, flipping directly to the s
Delphi的正则表达式控件 --------------------------------------------------------------- To do --------------------------------------------------------------- -=- VCL-version of TRegExpr - for dummies ;) and TRegExprEdit (replacement for TMaskEdit). -=- worki
本篇文章通过两个示例给大家介绍数据库中使用正则表达式小结,在此不多说,具体内容请看下文详解吧。
示例一:
CREATE FUNCTION dbo.RegExpTest (
source varchar(), --需要匹配的源字符串
regexp varchar(), --正则表达式
ignorecase bit = --是否区分大小写,默认为false
)
RETURNS bit --返回结果-false,-true
AS
BEGIN
--(成功)或非零数字(失败),是由OLE 自动化对象返回
常规(WIP)
用于在Haskell中表示常规语言(确定性有限自动机,非确定性有限自动机,正则表达式等)的类型安全形式主义。
例子
这是Dizz FizzBuzz的一个小示例:
-- A DFA which accepts numbers (as a string of digits) only when
-- they are evenly divisible by 5.
by5 ∷ DFA Bool Fin ₁₀
by5 = DFA δ q₀ f
where
-- The
本文实例讲述了Python正则表达式匹配中文用法。分享给大家供大家参考,具体如下:
#!/usr/bin/python
#-*- coding:cp936-*-#思路,将str转换成unicode,方可用正则表达式,前提是,要知道文件的编码,本例中是gbk
import cPickle as mypickle
import re
import sys
if (__name__=='__main__'):
fid1=file('demo.txt','r');#demo.txt写入字符如:软件