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module Chronic
class TimeZone < Tag
# Scan an Array of {Token}s and apply any necessary TimeZone tags to
# each token
#
# @param [Array<Token>] tokens Array of tokens to scan
# @param [Hash] options Options specified in {Chronic.parse}
# @return [Array] list of tokens
def self.scan(tokens, options)
tokens.each do |token|
if t = scan_for_all(token) then token.tag(t); next end
end
end
# @param [Token] token
# @return [TimeZone, nil]
def self.scan_for_all(token)
scan_for token, self,
{
/[PMCE][DS]T|UTC/i => :tz,
/(tzminus)?\d{2}:?\d{2}/ => :tz
}
end
def to_s
'timezone'
end
end
end
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