Spell Strings Using Phonetic Alphabets

Converts characters in a string into their corresponding phonetic representations using either the NATO phonetic alphabet or Morse code.

Usage

strSpell(x, upr = "CAP", type = c("NATO", "Morse"))

Arguments

x

a character vector (typically of length 1)

upr

character string used as a prefix for uppercase letters. Default is "CAP". If NA, no prefix is added.

type

character string specifying the encoding system:

• "NATO": NATO phonetic alphabet (default)

• "Morse": Morse code

Value

A character vector with each character of x replaced by its phonetic representation.

Details

Letters (A–Z, a–z) and digits (0–9) are mapped to their corresponding phonetic representations. Other characters are returned unchanged.

For type = "NATO", uppercase letters can optionally be prefixed (e.g., "CAP Alfa") to distinguish them from lowercase letters.

The function uses Unicode-aware character splitting via stringi::stri_split_boundaries().

See also

strTrim(), stringi::stri_split_boundaries()

string-overview for an overview of all string utilities in pharos.

Examples

# NATO spelling
strSpell("ABC")
#> [1] "CAP Alfa"    "CAP Bravo"   "CAP Charlie"

# with digits
strSpell("A1B2")
#> [1] "CAP Alfa"  "One"       "CAP Bravo" "Two"      

# Morse code
strSpell("SOS", type = "Morse")
#> [1] "..." "---" "..."

# without uppercase prefix
strSpell("ABC", upr = NA)
#> [1] "Alfa"    "Bravo"   "Charlie"