Extract all characters in a string before a match

Source: R/strings.R

If a string has more than one match, this will only return the first one.

extract_before(full_string, before_string, trim_spaces = TRUE)

Arguments

full_string

The full character string to extract from.

before_string

A pattern specifying the string should be extracted before this.

trim_spaces

logical T/F, if there are any spaces within the extracted string, they will be removed. Default is TRUE.

Value

A string

Examples


extract_before("What does the fox say?", before_string = "say")
#> [1] "What does the fox"