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anfederico/format_str.R

Created April 25, 2019 03:12
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Python style string formatting in R
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format_str.R
example <- "An example {1} where adding {2} and {2} and {3}"
val.1 <- "Value 1"
val.2 <- "Value 2"
val.3 <- "Value 3"
format_str <- function(string, ...) {
args <- list(...)
for (i in 1:length(args)) {
pattern <- paste("\\{", i, "}", sep="")
replacement <- args[[i]]
string <- gsub(pattern, replacement, string)
}
return(string)
}
print(format_str(example, val.1, val.2, val.3))
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