R：如何根据逗号分割包含逗号的字符串

Question

实施例

test <- unlist(strsplit(noquote(string), ","))
test <- gsub("[^A-Za-z0-9' ']", "", test)
gsub("^\\s+|\\s+$", "", test)

[1] "field1"     "field2"     "there is a" "in field3" 
[5] "field4"     "2"          "456"        "field6"    

否定尝试：

\" ... \"

请注意，包含逗号的字段位于{{1}}。

之间

Answer 1

read.table函数将忽略引号内的逗号。

string <- "field1,field2,\"there is a , in field3\", field4, \"2,456\", field6"

desired_result <- read.table(text=string, sep=",")