class GenMachine::CharSet
Attributes
kind[RW]
Public Class Methods
new(kind = :include)
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# File lib/genmachine/char_set.rb, line 4 def initialize(kind = :include) @kind = kind @include_intervals = [] @include_any = false end
Public Instance Methods
+(val)
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# File lib/genmachine/char_set.rb, line 24 def +(val) self.send(:<<,val) end
<<(val)
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# File lib/genmachine/char_set.rb, line 25 def <<(val) if val.is_a?(String) && val =~ /([^-])-([^-])/ include_range($1,$2) elsif val.is_a?(Range) include_range(val.first, val.last) elsif val == :any @include_any = true else include_char(val) end end
[](k)
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# File lib/genmachine/char_set.rb, line 11 def [](k) for_conditional[k] end
for_conditional()
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# File lib/genmachine/char_set.rb, line 13 def for_conditional if @include_any return {:kind=>@kind, :ranges=>[:any]} else ivals = @include_intervals.map do |a,b| a == b ? a : [a,b] end return {:kind=>@kind, :ranges=>ivals} end end
include_char(char)
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# File lib/genmachine/char_set.rb, line 35 def include_char(char) include_range(char,char) end
include_range(from, to)
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# File lib/genmachine/char_set.rb, line 37 def include_range(from, to) from = from.to_utf8_char_array[0] if from.is_a?(String) to = to.to_utf8_char_array[0] if to.is_a?(String) @include_intervals << [from,to].sort if @include_intervals.length > 1 @include_intervals.sort! merged = [] curr_a, curr_b = @include_intervals.shift @include_intervals.each_with_index do |ab,i| a,b = ab if a <= (curr_b+1) curr_b = [curr_b,b].max else merged << [curr_a, curr_b] curr_a,curr_b = ab end end merged << [curr_a, curr_b] @include_intervals = merged end end
inspect()
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# File lib/genmachine/char_set.rb, line 10 def inspect() for_conditional.inspect end