qmrparser (version 0.1.6)

isLetter: Is it a letter?

Description

Checks whether a character is a letter

Restricted to ASCII character (does not process <U+00F1>, <U+00E7>, accented vowels...)

Usage

isLetter(ch)

Arguments

ch

character to be checked

Value

TRUE/FALSE, depending on the character being a letter.

Examples

# NOT RUN {
isLetter('A')
isLetter('a')
isLetter('9')
# }