Migrate CompatibilityTable to Compat macro on MDN

migrate.rb

base = ARGV[0]
en_base = ARGV[1]

regexp = /\{\{\s*Compat\s*\(?.*\}\}/i

Dir.glob("**/*.html", base: base).each do |path|
    file = File.join(base, path)
    next if not FileTest.file?(file)

    content = File.read(file)
    next if not content.include?("CompatibilityTable")

    en_file = File.join(en_base, path)
    if not File.exist?(en_file)
        p "English file not found. (#{path})"
        next
    end

    match = File.read(en_file).scan(regexp)
    if match.length == 0
        # p "Macro not found in english file. (#{path})"
        # next
    end
    if match.length > 1
        p "Contains multiple Compat macro (#{path})" if match.length > 1
        next
    end

    lines = Array.new
    skip = false
    content.each_line(chomp: true) do |c|
        if c.include?("CompatibilityTable")
            if match.length == 0
                p "Macro not found in english file. (#{path})"
                while not lines.pop.strip.start_with?("<h2")
                end
            end

            for index in 0...match.length do
                lines.push("<p>#{match[index]}</p>");
                lines.push("")
            end

            skip = true
        end

        if c.strip.start_with?("<h2")
            skip = false
        end

        p "Contains h3 tag: #{c} (#{path})" if skip && c.strip.start_with?("<h3")

        lines.push(c) if !skip
    end

    File.open(file, mode_enc = "w") do |w|
        w.puts(lines.join("\n"))
    end
end