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# frozen_string_literal: true
require 'asciidoctor'
module Gitlab
module Asciidoc
# Mermaid BlockProcessor
class MermaidBlockProcessor < ::Asciidoctor::Extensions::BlockProcessor
use_dsl
named :mermaid
on_context :literal, :listing
parse_content_as :simple
def process(parent, reader, attrs)
create_mermaid_source_block(parent, reader.read, attrs)
end
private
def create_mermaid_source_block(parent, content, attrs)
# If "subs" attribute is specified, substitute accordingly.
# Be careful not to specify "specialcharacters" or your diagram code won't be valid anymore!
subs = attrs['subs']
content = parent.apply_subs(content, parent.resolve_subs(subs)) if subs
html = %(<div><pre data-mermaid-style="display">#{CGI.escape_html(content)}</pre></div>)
::Asciidoctor::Block.new(parent, :pass, {
content_model: :raw,
source: html,
subs: :default
}.merge(attrs))
end
end
end
end
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