Question

我正在尝试使用stringi来替换使用stri_replace的某些单词，但是在替换单词的相似部分时遇到了一个问题。在下面的例子中，我正在修复三角形的拼写错误，但它似乎变得混乱，因为＆＃39; tri＆＃39;是'trian＆＃39;的一部分是＆＃39;三角形的一部分，它就像“trainglegle”一样。＆＃39;我对stri_replace并不熟悉，是否有一些我不知道的争论？谢谢你的帮助。

stri_replace_all_regex("The quick brown tri jumped over the lazy trian.",
      c("tri", "trian", "fox"), c("triangle",  "triangle", "bear"), 
         vectorize_all=FALSE)

## [1] "The quick brown trianglegle jumped over the lazy triangleglean."

Answer 1

您可能希望隔离单词以使它们不同。 \\W是非字符。你可以试试这样的东西：

stri_replace_all_regex("The quick brown tri jumped over the lazy trian.",
                   paste0(c("trian", "tri",  "fox"), "(\\W)"), 
                   paste0(c("triangle","triangle", "bear"),"$1"),
                   vectorize_all = FALSE)
[1] "The quick brown triangle jumped over the lazy triangle."

Answer 2

如果你不想完成部分匹配，那么用空格终止一些（或者甚至所有你的模式参数）（并且还替换空格：

stri_replace_all_regex("The quick brown tri jumped over the lazy trian.",
  pattern=c("tri "), repl=c("triangle "), 
     vectorize_all=FALSE)

stri_replace_all_regex("The quick brown tri jumped over the lazy trian.",
       c("tri ", "trian", "fox "), c("triangle ",  "triangle", "bear "), 
          vectorize_all=TRUE)
[1] "The quick brown triangle jumped over the lazy trian."
[2] "The quick brown tri jumped over the lazy triangle."  
[3] "The quick brown tri jumped over the lazy trian."

用stringi替换单词

2 个答案: