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extension.rb
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extension.rb
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require 'asciidoctor/extensions' unless RUBY_ENGINE == 'opal'
require 'tilt'
require 'slim'
include Asciidoctor
# An extension that processes the contents of a block
# as a Slim template.
#
# Usage
#
# [slim]
# --
# p Hello, World!
# ul
# li red
# li green
# li blue
# --
#
class SlimBlock < Extensions::BlockProcessor
use_dsl
named :slim
on_context :open
parse_content_as :raw
def process parent, reader, attrs
document = parent.document
lines = reader.lines
pretty = attrs.fetch('pretty', 'true') == 'true'
html_syntax = (document.attr 'htmlsyntax', 'html') == 'html' ? :html5 : :xhtml
tmpl = Slim::Template.new(format: html_syntax, pretty: pretty) { lines * EOL }
html = tmpl.render document, (attributes_to_locals document.attributes)
# QUESTION should we allow attribute references in slim source or allow subs to be specified?
#create_pass_block parent, html, attrs
create_pass_block parent, html, attrs, subs: nil
end
def attributes_to_locals attrs
attrs.inject({}) do |accum, (key,val)|
accum[key.tr '-', '_'] = val
accum
end
end
end