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Convert string to upper case, lower case, title case, or sentence case

Source: R/case.R
case.Rd

  • str_to_upper() converts to upper case.

  • str_to_lower() converts to lower case.

  • str_to_title() converts to title case, where only the first letter of each word is capitalized.

  • str_to_sentence() convert to sentence case, where only the first letter of sentence is capitalized.

Usage

str_to_upper(string, locale = "en")  str_to_lower(string, locale = "en")  str_to_title(string, locale = "en")  str_to_sentence(string, locale = "en")

Arguments

string

Input vector. Either a character vector, or something coercible to one.

locale

Locale to use for comparisons. See stringi::stri_locale_list() for all possible options. Defaults to "en" (English) to ensure that default behaviour is consistent across platforms.

Value

A character vector the same length as string.

Examples

dog <- "The quick brown dog" str_to_upper(dog) #> [1] "THE QUICK BROWN DOG" str_to_lower(dog) #> [1] "the quick brown dog" str_to_title(dog) #> [1] "The Quick Brown Dog" str_to_sentence("the quick brown dog") #> [1] "The quick brown dog"  # Locale matters! str_to_upper("i") # English #> [1] "I" str_to_upper("i", "tr") # Turkish #> [1] "İ"