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# -*- encoding: utf-8 -*-
require "unicode_utils/read_cdata"
module UnicodeUtils
GENERAL_CATEGORY_PER_CP_MAP =
Impl.read_general_category_per_cp("general_category_per_cp") # :nodoc:
GENERAL_CATEGORY_RANGES =
Impl.read_general_category_ranges("general_category_ranges") # :nodoc:
# Get the two letter general category alias of the given char. The
# first letter denotes a major class, the second letter a subclass
# of the major class.
#
# See section 4.5 in Unicode 6.0.0.
#
# Example:
#
# require "unicode_utils/gc"
# UnicodeUtils.gc("A") # => :Lu (Letter, uppercase)
#
# Returns nil for ordinals outside the Unicode code point range, a
# two letter symbol otherwise.
#
# See also: UnicodeUtils.general_category, UnicodeUtils.char_type
def gc(char)
cp = char.ord
cat = GENERAL_CATEGORY_PER_CP_MAP[cp] and return cat
GENERAL_CATEGORY_RANGES.each { |pair|
return pair[1] if pair[0].cover?(cp)
}
if cp >= 0x0 && cp <= 0x10FFFF
:Cn # Other, not assigned
else
nil
end
end
module_function :gc
end
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