我正在寻找使用键迭代替换字符串中的文本。我有下面的代码,但我想知道是否有更简单或更有效的方法来做到这一点
library(stringi)
library(magrittr)
library(dplyr)
old_texts = c("blah blah value1 blah blah value2",
"blah value1 blah value2")
key = data_frame(
old = c("value1", "value2"),
new = c("value3", "value4") )
replace_key_individual = function(old_text, key)
key %>%
mutate(call = paste0(
"stri_replace_all_fixed('", old, "','", new, "')") ) %>%
summarize(new_call =
call %>%
paste(collapse = " %>% ")) %>%
`$`(new_call) %>%
paste("old_text %>% ", .) %>%
parse(text = .) %>%
eval
replace_key = function(old_texts, key)
old_texts %>%
sapply(. %>% replace_key_individual(key)) %>%
unname
replace_key(old_texts, key = key)