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# frozen_string_literal: true
require 'singleton'
require 'redcarpet'
require 'redcarpet/render_strip'
module NanoBot
module Logic
module Cartridge
module Parser
def self.parse(raw, format:)
normalized = format.to_s.downcase.gsub('.', '').strip
if %w[yml yaml].include?(normalized)
yaml(raw)
elsif %w[markdown mdown mkdn md].include?(normalized)
markdown(raw)
else
raise "Unknown cartridge format: '#{format}'"
end
end
def self.markdown(raw)
yaml_source = []
tools = []
blocks = Markdown.new.render(raw).blocks
previous_block_is_tool = false
blocks.each do |block|
if block[:language] == 'yaml'
parsed = Logic::Helpers::Hash.symbolize_keys(
YAML.safe_load(block[:source], permitted_classes: [Symbol])
)
if parsed.key?(:tools) && parsed[:tools].is_a?(Array) && !parsed[:tools].empty?
previous_block_is_tool = true
tools.concat(parsed[:tools])
parsed.delete(:tools)
unless parsed.empty?
yaml_source << YAML.dump(Logic::Helpers::Hash.stringify_keys(
parsed
)).gsub(/^---/, '') # TODO: Is this safe enough?
end
else
yaml_source << block[:source]
previous_block_is_tool = false
nil
end
elsif previous_block_is_tool
tools.last[block[:language].to_sym] = block[:source]
previous_block_is_tool = false
end
end
unless tools.empty?
yaml_source << YAML.dump(Logic::Helpers::Hash.stringify_keys(
{ tools: }
)).gsub(/^---/, '') # TODO: Is this safe enough?
end
yaml(yaml_source.join("\n"))
end
def self.yaml(raw)
Logic::Helpers::Hash.symbolize_keys(
YAML.safe_load(raw, permitted_classes: [Symbol])
)
end
class Renderer < Redcarpet::Render::Base
LANGUAGES_MAP = {
'yml' => 'yaml',
'yaml' => 'yaml',
'lua' => 'lua',
'fnl' => 'fennel',
'fennel' => 'fennel',
'clj' => 'clojure',
'clojure' => 'clojure'
}.freeze
LANGUAGES = LANGUAGES_MAP.keys.freeze
def initialize(...)
super(...)
@_nano_bots_blocks = []
end
attr_reader :_nano_bots_blocks
def block_code(code, language)
key = language.to_s.downcase.strip
return nil unless LANGUAGES.include?(key)
@_nano_bots_blocks << { language: LANGUAGES_MAP[key], source: code }
nil
end
end
class Markdown
attr_reader :markdown
def initialize
@renderer = Renderer.new
@markdown = Redcarpet::Markdown.new(@renderer, fenced_code_blocks: true)
end
def blocks
@renderer._nano_bots_blocks
end
def render(raw)
@markdown.render(raw.gsub(/```\w/, "\n\n\\0"))
self
end
end
end
end
end
end
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