正则表达式删除单词，如果它同时在R中多次包含字母/特殊字符 [英] regex to remove words if it contains a letter/special character multiple times simultaneously in R

问题描述

我想删除单词中的字母/特殊字符同时出现两次以上的单词.

I want to remove those words where the number of letters/special characters in a word occurs more than twice simultaneously.

例如，输入就像

"Google in theee lland of whhhat c#, c++ and e###"

，输出应为

"Google in lland of c#, c++ and"

推荐答案

x <- "Google in theee lland of whhhat c#, c++ and e###"
gsub("\\S*(\\S)\\1\\1\\S*\\s?", "", x)
# [1] "Google in lland of c#, c++ and "

(\\S)\\1\\1查找单个非空格字符的三个连续重复的序列.

(\\S)\\1\\1 finds sequences of three consecutive repetitions of a single non-space character.

周围的\\S*和\\S*\\s?仅捕获同一单词中的前后字符，以及该单词后的任何单个空格.

The surrounding \\S* and \\S*\\s? just capture preceding and succeeding characters within the same word, as well as any single space immediately following the word.

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