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module Chronic
class TimeZone < Tag
# Scan an Array of Token objects and apply any necessary TimeZone
# tags to each token.
#
# tokens - An Array of tokens to scan.
# options - The Hash of options specified in Chronic::parse.
#
# Returns an Array 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
# token - The Token object we want to scan.
#
# Returns a new Pointer object.
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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