Function IsDigit

postgres/parser/lex/predicates.go:43–45

IsDigit returns true if the character is between 0 and 9.

(ch int)

// IsDigit returns true if the character is between 0 and 9.
func IsDigit(ch int) bool {
	return ch >= '0' && ch <= '9'
}

// IsHexDigit returns true if the character is a valid hexadecimal digit.
func IsHexDigit(ch int) bool {