Sha256: 25f85e1571963b0a3c12e38232273b15aab6d4b1be1e7236aaf8de47e4b944a6
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Size: 1.97 KB
Versions: 9
Compression:
Stored size: 1.97 KB
Contents
module Chronic
class Scalar < Tag #:nodoc:
def self.scan(tokens)
# for each token
tokens.each_index do |i|
if t = self.scan_for_scalars(tokens[i], tokens[i + 1]) then tokens[i].tag(t) end
if t = self.scan_for_days(tokens[i], tokens[i + 1]) then tokens[i].tag(t) end
if t = self.scan_for_months(tokens[i], tokens[i + 1]) then tokens[i].tag(t) end
if t = self.scan_for_years(tokens[i], tokens[i + 1]) then tokens[i].tag(t) end
end
tokens
end
def self.scan_for_scalars(token, post_token)
if token.word =~ /^\d*$/
unless post_token && %w{am pm morning afternoon evening night}.include?(post_token)
return Scalar.new(token.word.to_i)
end
end
return nil
end
def self.scan_for_days(token, post_token)
if token.word =~ /^\d\d?$/
unless token.word.to_i > 31 || (post_token && %w{am pm morning afternoon evening night}.include?(post_token))
return ScalarDay.new(token.word.to_i)
end
end
return nil
end
def self.scan_for_months(token, post_token)
if token.word =~ /^\d\d?$/
unless token.word.to_i > 12 || (post_token && %w{am pm morning afternoon evening night}.include?(post_token))
return ScalarMonth.new(token.word.to_i)
end
end
return nil
end
def self.scan_for_years(token, post_token)
if token.word =~ /^([1-9]\d)?\d\d?$/
unless post_token && %w{am pm morning afternoon evening night}.include?(post_token)
return ScalarYear.new(token.word.to_i)
end
end
return nil
end
def to_s
'scalar'
end
end
class ScalarDay < Scalar #:nodoc:
def to_s
super << '-day-' << @type.to_s
end
end
class ScalarMonth < Scalar #:nodoc:
def to_s
super << '-month-' << @type.to_s
end
end
class ScalarYear < Scalar #:nodoc:
def to_s
super << '-year-' << @type.to_s
end
end
end
Version data entries
9 entries across 9 versions & 2 rubygems