Generate a Markdown Table from the ScummVM source code

generate-games-list.rb

def replace_target(path, target)
  p = path.split('/')
  p[-1] = target
  return p.join('/').to_s
end

def cleanup_title(c)
  title = c.gsub('{','').gsub('}','').gsub("\t", ' ').split(', ')[1..-1].join.strip
  title = title.delete_prefix('"').delete_suffix('"').delete_suffix(' ,').delete_suffix("\",").delete_suffix("\"").delete_suffix("\" ;")
  title
end

target        = "detection.cpp"
fallback      = "detection_tables.h"
search_term   = "static const PlainGameDescriptor "
fallback_term = "const PlainGameDescriptor "

files = %x[find `pwd` -name '#{target}'].split("\n")
result = []

files.each do |f|
  offset  = %x[grep -n "#{search_term}" #{f}].split(':')[0].to_i

  if offset == 0
    f = replace_target(f, fallback)
    offset = %x[grep -n "#{search_term}" #{f}].split(':')[0].to_i if File.exists?(f)
    # kyra
    offset = %x[grep -n "#{fallback_term}" #{f}].split(':')[0].to_i if offset == 0 && File.exists?(f)
  end

  if offset > 0
    terminator1  = %x[sed -n '#{offset + 1}, $ p' '#{f}' | grep -n '0, 0'].split(':')[0].to_i
    terminator2  = %x[sed -n '#{offset + 1}, $ p' '#{f}' | grep -n ';'].split(':')[0].to_i
    length = (terminator1 < terminator2) ? terminator1 : terminator2
    content = %x[sed -n '#{offset + 1}, #{offset + length - 1} p' #{f}]

    engine = f.split('/')[-2]
    content.strip.split(",\n").each do |c|
      title = cleanup_title(c)
      if title.index("//").nil?
        result << { engine: engine, title: title } unless title == "nullptr"
      else
        titles = c.split("\n\t")
        titles.each do |t|
          result << { engine: engine, title: cleanup_title(t) }
        end
      end
    end
  end
end

result.reject! { |obj| obj[:title].empty? }
puts "| Engine | Title (#{result.length}) |"
puts "|--------|--------------------------|"
result.sort_by { |obj| obj[:title] }.each do |o|
  puts "|#{o[:engine]}|#{o[:title]}|"
end