相关疑难解决方法(0)

我想使用R的gsub从文本中删除除撇号之外的所有标点符号.我对正则表达式很新,但我正在学习.

例:

x <- "I like %$@to*&, chew;: gum, but don't like|}{[] bubble@#^)( gum!?"
gsub("[[:punct:]]", "", as.character(x))

电流输出(没有撇号)

[1] "I like to chew gum but dont like bubble gum"

期望的输出(我希望撇号不要留下)

[1] "I like to chew gum but don't like bubble gum"

我有以下正则表达式分裂任何空格或标点符号.如何从中排除1个或多个标点字符:punct:？假设我想排除撇号和逗号.我知道我可以明确使用[all punctuation marks in here]而不是,[[:punct:]]但我希望有一个排除方法.

X <- "I'm not that good at regex yet, but am getting better!"
strsplit(X, "[[:space:]]|(?=[[:punct:]])", perl=TRUE)

 [1] "I"       "'"       "m"       "not"     "that"    "good"    "at"      "regex"   "yet"    
[10] ","       ""        "but"     "am"      "getting" "better"  "!"