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Versions: 23
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Stored size: 1.85 KB
Contents
require 'set'
require 'stringio'
module CommonMarker
class Renderer
attr_accessor :in_tight, :warnings, :in_plain
def initialize
@stream = StringIO.new("".force_encoding("utf-8"))
@need_blocksep = false
@warnings = Set.new []
@in_tight = false
@in_plain = false
@buffer = ''
end
def out(*args)
args.each do |arg|
if arg == :children
@node.each { |child| out(child) }
elsif arg.is_a?(Array)
arg.each { |x| render(x) }
elsif arg.is_a?(Node)
render(arg)
else
@buffer << arg.to_s.force_encoding('utf-8')
@stream.write(arg)
end
end
end
def render(node)
@node = node
if node.type == :document
document(node)
return @stream.string
elsif @in_plain && node.type != :text && node.type != :softbreak
node.each { |child| render(child) }
else
begin
send(node.type, node)
rescue NoMethodError => e
@warnings.add("WARNING: #{node.type} not implemented.")
raise e
end
end
end
def document(_node)
out(:children)
end
def code_block(node)
code_block(node)
end
def reference_def(_node)
end
def cr
return if @buffer.empty? || @buffer[-1] == "\n"
out("\n")
end
def blocksep
out("\n")
end
def containersep
cr unless @in_tight
end
def block
cr
yield
cr
end
def container(starter, ender)
out(starter)
yield
out(ender)
end
def plain
old_in_plain = @in_plain
@in_plain = true
yield
@in_plain = old_in_plain
end
private
def escape_href(str)
@node.html_escape_href(str)
end
def escape_html(str)
@node.html_escape_html(str)
end
end
end
Version data entries
23 entries across 23 versions & 1 rubygems