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renderer.rb
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renderer.rb
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module CiteProc
module Ruby
class Renderer
attr_reader :state
attr_accessor :engine
def initialize(options_or_engine = nil)
@state = State.new
case options_or_engine
when Engine
@engine = options_or_engine
when Hash
locale, format = options_or_engine.values_at(:locale, :format)
@locale = locale.is_a?(CSL::Locale) ? locale : CSL::Locale.load(locale)
@format = Format.load(format)
end
end
def abbreviate(*arguments)
return unless engine
engine.abbreviate(*arguments)
end
alias abbrev abbreviate
def allow_locale_overrides?
return false unless engine
engine.options[:allow_locale_overrides]
end
# @param item [CiteProc::CitationItem]
# @param node [CSL::Node]
# @return [String] the rendered and formatted string
def render(item, node)
raise ArgumentError, "no CSL node: #{node.inspect}" unless
node.respond_to?(:nodename)
specialize = "render_#{node.nodename.tr('-', '_')}"
raise ArgumentError, "#{specialize} not implemented" unless
respond_to?(specialize, true)
format! send(specialize, item, node), node
end
# @param data [CiteProc::CitationData]
# @param node [CSL::Style::Citation]
# @return [String] the rendered and formatted string
def render_citation(data, node)
state.store! data, node
citations = join data.map { |item|
render_single_citation item, node.layout
}, node.layout.delimiter || ''
result = format! citations, node.layout
ensure
state.clear! result
end
# @param data [CiteProc::CitationItem]
# @param node [CSL::Style::Layout]
# @return [String] the rendered and string
def render_single_citation(item, node)
# TODO author_only
item.suppress! 'author' if item.suppress_author?
join [item.prefix, render_layout(item, node), item.suffix].compact
end
# @param item [CiteProc::CitationItem]
# @param node [CSL::Style::Bibliography]
# @return [String] the rendered and formatted string
def render_bibliography(item, node)
state.store! item, node
if allow_locale_overrides? && item.language != locale.language
begin
new_locale = CSL::Locale.load(item.language)
unless new_locale.nil?
original_locale, @locale = @locale, new_locale
end
rescue ParseError
# locale not found
end
end
result = render item, node.layout
ensure
unless original_locale.nil?
@locale = original_locale
end
state.clear! result
end
def render_sort(a, b, node, key)
state.store! nil, key
original_format = @format
@format = Formats::Sort.new
if a.is_a?(CiteProc::Names)
[render_name(a, node), render_name(b, node)]
else
# We need to clear any items that are suppressed
# because they were used as substitutes during
# rendering for sorting purposes!
a_rendered = render a.cite, node
a.suppressed.clear
b_rendered = render b.cite, node
b.suppressed.clear
[a_rendered, b_rendered]
end
ensure
@format = original_format
state.clear!
end
end
end
end