The internal type name for Gregorian calendar is "gregory" so that it can fit
into a language tag ("zh-u-ca-gregory") as "gregorian" exceeds the 8-char
limit.
Operands for use in evaluating localized plural rules: See:
http://www.unicode.org/reports/tr35/tr35-numbers.html#Plural_Operand_Meanings
symbol value ---------------- n absolute value of the source number (integer and decimals) i integer digits of n v
number of visible fraction digits in n, with trailing zeros w number of visible fraction digits in n, without
trailing zeros f visible fractional digits in n, with trailing zeros t visible fractional digits in n, without
trailing zeros