propeller.tools.character

get-ascii

(get-ascii c)
Gets the ASCII code of a char

is-digit

(is-digit c)
Returns true if the given character is a digit, 0-9.

is-letter

(is-letter c)
Returns true if the given character is a letter, A-Z or a-z.

is-whitespace

(is-whitespace c)
Returns true if the given character is whitespace (newline, space, tab).