R 正则表达式例子

my_fenci <- function(line){
#         line1 <- gsub("http","网址",line,ignore.case =T)
#         line2 <- gsub("[a-z]|#|:|/|[0-9]","",line1,ignore.case =T)
#         #                 line3 <- gsub("^[u2E80-u9FFF]+$",line2,ignore.case =T)
        line2 <- str_extract_all(line,pattern="[u2E80-u9FFF]+",simplify = T)
        if (ncol(line2)!=1){
                line3 <- paste(line2,collapse = ',') #有的文本只有一个词 会在算距离时候出错加一个词add
        }else{
                line3 <- paste(line2,"add",')
        }
        line3   

       keys2 <= line3
}
#

library(stringr)
line <- "| 48394 Clearance Delta vs. RAP Exceeded Limit |"
num <- str_extract_all(line,pattern="[0-9]",simplify = T)
Err_Code <- as.numeric(paste(num,collapse = ""))

num <- gregexpr(line,pattern="[a-zA-Z]")[[1]]
Err_Desc <-substring(line,num[1],num[length(num)])
Err_Code
Err_Desc

> Err_Code
[1] 48394
> Err_Desc
[1] "Clearance Delta vs. RAP Exceeded Limit"