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Contents
# encoding: UTF-8
# Copyright 2012 Twitter, Inc
# http://www.apache.org/licenses/LICENSE-2.0
module TwitterCldr
module Parsers
class UnicodeRegexParser
# Regex character range eg. a-z or 0-9
# Can only exist in character classes
class CharacterRange < Component
attr_reader :initial, :final
def initialize(initial, final)
@initial = initial
@final = final
end
# Unfortunately, due to the ambiguity of having both character
# ranges and set operations in the same syntax (which both use
# the "-" operator and square brackets), we have to treat
# CharacterRange as both a token and an operand. This type method
# helps it behave like a token.
def type
:character_range
end
def to_set
TwitterCldr::Utils::RangeSet.new(
[initial.to_set.to_full_a.first..final.to_set.to_full_a.first]
)
end
def codepoints
to_set.to_full_a
end
def to_s
"#{initial.to_s}-#{final.to_s}"
end
end
end
end
end
Version data entries
17 entries across 17 versions & 2 rubygems