正如其他人所说，这取决于你的regex引擎，但一个小例子，你可以这样做：/([ _-,.])\1*/\1/g使用sed：使用注解中提到的JavaScript，并假设（从你的问题中看不太清楚）你想要替换的字符是空格字符，.，'，-和,：如果我理解正确的话，你想做以下事情：给定一组字符，用单个字符替换每个字符的任何多次出现。下面是我在perl中的做法：
Remove/Replace/Extract Words With Repeating Characterstext.var
This would match all three-letter words. But what if you want to match a five- or eight-character word. The above method is tedious. There’s a better way to express such a pattern using the{}curly braces notation. All you have to do is specify the number of repeating characters. Her...
It may be useful to filter out words with repeating characters which are not really words at all. p1 <- "aaaahahahahaha that was a good banana joke ahahah haha aha harhar" gsub('\\b(\\S+?)\\1\\S*\\b', '', p1, perl = TRUE) ## [1] " that was a good banana joke aha...
Find and replace a string in the registry Find and Replace special characters text in file Find and Replace Text in a File Find bridge head server Find certificates issued by specific CA? Find Computer Name of the PC that a user is currently logged from their AD Username Find Computers AD ...
Regular expressions can contain both special and ordinary characters. Most ordinary characters, like'A','a', or'0', are the simplest regular expressions; they simply match themselves. You can concatenate ordinary characters, solastmatches the string'last'. (In the rest of this section, we’ll...
Find repeating patterns (that you do not know in advance) in string Find the .csproj path of a .cs file programatically using c# find url from a text file in C# Finding all connected USB Devices and their Friendly Names Finding all special characters in a text file Fire event before selec...
regex 这个正则表达式是什么意思？也可以在regextag details page上看到很多一般性的提示和有用的链接。
I have added the.+metacharacterbefore the second pattern. the dot represents any character except a new line and the plus sign means that the preceding pattern is repeating one or more times. So.+means that before the first group, we have a bunch of characters that we can ignore ...
regex 这个正则表达式是什么意思？也可以在regextag details page上看到很多一般性的提示和有用的链接。