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##
# An array of attributes which parallels the characters in a string.
class RDoc::Markup::AttrSpan
##
# Creates a new AttrSpan for +length+ characters
def initialize(length)
@attrs = Array.new(length, 0)
end
##
# Toggles +bits+ from +start+ to +length+
def set_attrs(start, length, bits)
for i in start ... (start+length)
@attrs[i] |= bits
end
end
##
# Accesses flags for character +n+
def [](n)
@attrs[n]
end
end
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