class Object

# File lib/nokogiri.rb, line 108
def Nokogiri(*args, &block)
  if block
    Nokogiri::HTML4::Builder.new(&block).doc.root
  else
    Nokogiri.parse(*args)
  end
end

# File ext/nokogiri/extconf.rb, line 319
def abort_could_not_find_library(lib)
  callers = caller(1..2).join("\n")
  abort("-----\n#{callers}\n#{lib} is missing. Please locate mkmf.log to investigate how it is failing.\n-----")
end

# File ext/nokogiri/extconf.rb, line 208
def aix?
  RbConfig::CONFIG["target_os"].include?("aix")
end

# File ext/nokogiri/extconf.rb, line 324
def chdir_for_build(&block)
  # When using rake-compiler-dock on Windows, the underlying Virtualbox shared
  # folders don't support symlinks, but libiconv expects it for a build on
  # Linux. We work around this limitation by using the temp dir for cooking.
  build_dir = /mingw|mswin|cygwin/.match?(ENV["RCD_HOST_RUBY_PLATFORM"].to_s) ? "/tmp" : "."
  Dir.chdir(build_dir, &block)
end

# File ext/nokogiri/extconf.rb, line 224
def concat_flags(*args)
  args.compact.join(" ")
end

# File ext/nokogiri/extconf.rb, line 169
def config_clean?
  enable_config("clean", true)
end

# File ext/nokogiri/extconf.rb, line 178
def config_cross_build?
  enable_config("cross-build")
end

# File ext/nokogiri/extconf.rb, line 173
def config_static?
  default_static = !truffle?
  enable_config("static", default_static)
end

# File ext/nokogiri/extconf.rb, line 182
def config_system_libraries?
  enable_config("system-libraries", ENV.key?("NOKOGIRI_USE_SYSTEM_LIBRARIES")) do |_, default|
    arg_config("--use-system-libraries", default)
  end
end

# File ext/nokogiri/extconf.rb, line 188
def config_with_xml2_legacy?
  enable_config("xml2-legacy", true)
end

# File ext/nokogiri/extconf.rb, line 557
def copy_packaged_libraries_headers(to_path:, from_recipes:)
  FileUtils.rm_rf(to_path, secure: true)
  FileUtils.mkdir(to_path)
  from_recipes.each do |recipe|
    FileUtils.cp_r(Dir[File.join(recipe.path, "include/*")], to_path)
  end
end

# File ext/nokogiri/extconf.rb, line 200
def darwin?
  RbConfig::CONFIG["target_os"].include?("darwin")
end

# File ext/nokogiri/extconf.rb, line 570
def do_clean
  root = Pathname(PACKAGE_ROOT_DIR)
  pwd  = Pathname(Dir.pwd)

  # Skip if this is a development work tree
  unless (root + ".git").exist?
    message("Cleaning files only used during build.\n")

    # (root + 'tmp') cannot be removed at this stage because
    # nokogiri.so is yet to be copied to lib.

    # clean the ports build directory
    Pathname.glob(pwd.join("tmp", "*", "ports")) do |dir|
      FileUtils.rm_rf(dir, verbose: true)
    end

    if config_static?
      # ports installation can be safely removed if statically linked.
      FileUtils.rm_rf(root + "ports", verbose: true)
    else
      FileUtils.rm_rf(root + "ports" + "archives", verbose: true)
    end
  end

  exit!(0)
end

# File ext/nokogiri/extconf.rb, line 565
def do_help
  print(NOKOGIRI_HELP_MESSAGE)
  exit!(0)
end

# File ext/nokogiri/extconf.rb, line 308
def ensure_func(func, headers = nil)
  have_func(func, headers) || abort_could_not_find_library(func)
end

# File ext/nokogiri/extconf.rb, line 303
def ensure_package_configuration(opt: nil, pc: nil, lib:, func:, headers:)
  have_package_configuration(opt: opt, pc: pc, lib: lib, func: func, headers: headers) ||
    abort_could_not_find_library(lib)
end

# File ext/nokogiri/extconf.rb, line 242
def gnome_source
  "https://download.gnome.org"
end

# File ext/nokogiri/extconf.rb, line 361
def have_libxml_headers?(version = nil)
  source = if version.nil?
    <<~SRC
      #include <libxml/xmlversion.h>
    SRC
  else
    version_int = format("%d%2.2d%2.2d", *version.split("."))
    <<~SRC
      #include <libxml/xmlversion.h>
      #if LIBXML_VERSION < #{version_int}
      #  error libxml2 is older than #{version}
      #endif
    SRC
  end

  try_cpp(source)
end

# File ext/nokogiri/extconf.rb, line 286
def have_package_configuration(opt: nil, pc: nil, lib:, func:, headers:)
  if opt
    dir_config(opt)
    dir_config("opt")
  end

  # see if we have enough path info to do this without trying any harder
  unless ENV.key?("NOKOGIRI_TEST_PKG_CONFIG")
    return true if local_have_library(lib, func, headers)
  end

  try_package_configuration(pc) if pc

  # verify that we can compile and link against the library
  local_have_library(lib, func, headers)
end

# File ext/nokogiri/extconf.rb, line 400
def iconv_configure_flags
  # give --with-iconv-dir and --with-opt-dir first priority
  ["iconv", "opt"].each do |target|
    config = preserving_globals { dir_config(target) }
    next unless config.any? && try_link_iconv("--with-#{target}-* flags") { dir_config(target) }

    idirs, ldirs = config.map do |dirs|
      Array(dirs).flat_map do |dir|
        dir.split(File::PATH_SEPARATOR)
      end if dirs
    end

    return [
      "--with-iconv=yes",
      *("CPPFLAGS=#{idirs.map { |dir| "-I" + dir }.join(" ")}" if idirs),
      *("LDFLAGS=#{ldirs.map { |dir| "-L" + dir }.join(" ")}" if ldirs),
    ]
  end

  if try_link_iconv
    return ["--with-iconv=yes"]
  end

  config = preserving_globals { pkg_config("libiconv") }
  if config && try_link_iconv("pkg-config libiconv") { pkg_config("libiconv") }
    cflags, ldflags, libs = config

    return [
      "--with-iconv=yes",
      "CPPFLAGS=#{cflags}",
      "LDFLAGS=#{ldflags}",
      "LIBS=#{libs}",
    ]
  end

  abort_could_not_find_library("libiconv")
end

# File ext/nokogiri/extconf.rb, line 354
def libflag_to_filename(ldflag)
  case ldflag
  when /\A-l(.+)/
    "lib#{Regexp.last_match(1)}.#{$LIBEXT}"
  end
end

# File ext/nokogiri/extconf.rb, line 228
def local_have_library(lib, func = nil, headers = nil)
  have_library(lib, func, headers) || have_library("lib#{lib}", func, headers)
end

# File ext/nokogiri/extconf.rb, line 619
def needs_darwin_linker_hack
  config_cross_build? &&
    darwin? &&
    Gem::Requirement.new("~> 3.2").satisfied_by?(Gem::Version.new(RbConfig::CONFIG["ruby_version"].split("+").first))
end

# File ext/nokogiri/extconf.rb, line 216
def nix?
  ENV.key?("NIX_CC")
end

# File ext/nokogiri/extconf.rb, line 204
def openbsd?
  RbConfig::CONFIG["target_os"].include?("openbsd")
end

# File ext/nokogiri/extconf.rb, line 312
def preserving_globals
  values = [$arg_config, $INCFLAGS, $CFLAGS, $CPPFLAGS, $LDFLAGS, $DLDFLAGS, $LIBPATH, $libs].map(&:dup)
  yield
ensure
  $arg_config, $INCFLAGS, $CFLAGS, $CPPFLAGS, $LDFLAGS, $DLDFLAGS, $LIBPATH, $libs = values
end

# File ext/nokogiri/extconf.rb, line 438
def process_recipe(name, version, static_p, cross_p, cacheable_p = true)
  require "rubygems"
  gem("mini_portile2", REQUIRED_MINI_PORTILE_VERSION) # gemspec is not respected at install time
  require "mini_portile2"
  message("Using mini_portile version #{MiniPortile::VERSION}\n")

  unless ["libxml2", "libxslt"].include?(name)
    OTHER_LIBRARY_VERSIONS[name] = version
  end

  MiniPortile.new(name, version).tap do |recipe|
    def recipe.port_path
      "#{@target}/#{RUBY_PLATFORM}/#{@name}/#{@version}"
    end

    # We use 'host' to set compiler prefix for cross-compiling. Prefer host_alias over host. And
    # prefer i686 (what external dev tools use) to i386 (what ruby's configure.ac emits).
    recipe.host = RbConfig::CONFIG["host_alias"].empty? ? RbConfig::CONFIG["host"] : RbConfig::CONFIG["host_alias"]
    recipe.host = recipe.host.gsub("i386", "i686")

    recipe.target = File.join(PACKAGE_ROOT_DIR, "ports") if cacheable_p
    recipe.configure_options << "--libdir=#{File.join(recipe.path, "lib")}"

    yield recipe

    env = Hash.new do |hash, key|
      hash[key] = (ENV[key]).to_s
    end

    recipe.configure_options.flatten!

    recipe.configure_options.delete_if do |option|
      case option
      when /\A(\w+)=(.*)\z/
        env[Regexp.last_match(1)] = if env.key?(Regexp.last_match(1))
          concat_flags(env[Regexp.last_match(1)], Regexp.last_match(2))
        else
          Regexp.last_match(2)
        end
        true
      else
        false
      end
    end

    if static_p
      recipe.configure_options += [
        "--disable-shared",
        "--enable-static",
      ]
      env["CFLAGS"] = concat_flags(env["CFLAGS"], "-fPIC")
    else
      recipe.configure_options += [
        "--enable-shared",
        "--disable-static",
      ]
    end

    if cross_p
      recipe.configure_options += [
        "--target=#{recipe.host}",
        "--host=#{recipe.host}",
      ]
    end

    if RbConfig::CONFIG["target_cpu"] == "universal"
      ["CFLAGS", "LDFLAGS"].each do |key|
        unless env[key].include?("-arch")
          env[key] = concat_flags(env[key], RbConfig::CONFIG["ARCH_FLAG"])
        end
      end
    end

    recipe.configure_options += env.map do |key, value|
      "#{key}=#{value.strip}"
    end

    checkpoint = "#{recipe.target}/#{recipe.name}-#{recipe.version}-#{RUBY_PLATFORM}.installed"
    if File.exist?(checkpoint) && !recipe.source_directory
      message("Building Nokogiri with a packaged version of #{name}-#{version}.\n")
    else
      message(<<~EOM)
        ---------- IMPORTANT NOTICE ----------
        Building Nokogiri with a packaged version of #{name}-#{version}.
        Configuration options: #{recipe.configure_options.shelljoin}
      EOM

      unless recipe.patch_files.empty?
        message("The following patches are being applied:\n")

        recipe.patch_files.each do |patch|
          message(format("  - %s\n", File.basename(patch)))
        end
      end

      message(<<~EOM) if name != "libgumbo"

        The Nokogiri maintainers intend to provide timely security updates, but if
        this is a concern for you and want to use your OS/distro system library
        instead, then abort this installation process and install nokogiri as
        instructed at:

          https://nokogiri.org/tutorials/installing_nokogiri.html#installing-using-standard-system-libraries

      EOM

      message(<<~EOM) if name == "libxml2"
        Note, however, that nokogiri cannot guarantee compatibility with every
        version of libxml2 that may be provided by OS/package vendors.

      EOM

      chdir_for_build { recipe.cook }
      FileUtils.touch(checkpoint)
    end
    recipe.activate
  end
end

# File bin/nokogiri, line 43
def safe_read(uri_or_path)
  uri = URI.parse(uri_or_path)
  case uri
  when URI::HTTP
    uri.read
  when URI::File
    File.read(uri.path)
  else
    File.read(uri_or_path)
  end
end

# File ext/nokogiri/extconf.rb, line 332
def sh_export_path(path)
  # because libxslt 1.1.29 configure.in uses AC_PATH_TOOL which treats ":"
  # as a $PATH separator, we need to convert windows paths from
  #
  #   C:/path/to/foo
  #
  # to
  #
  #   /C/path/to/foo
  #
  # which is sh-compatible, in order to find things properly during
  # configuration
  return path unless windows?

  match = Regexp.new("^([A-Z]):(/.*)").match(path)
  if match && match.length == 3
    return File.join("/", match[1], match[2])
  end

  path
end

# File ext/nokogiri/extconf.rb, line 196
def solaris?
  RbConfig::CONFIG["target_os"].include?("solaris")
end

# File ext/nokogiri/extconf.rb, line 220
def truffle?
  RUBY_ENGINE == "truffleruby"
end

# File ext/nokogiri/extconf.rb, line 379
def try_link_iconv(using = nil)
  checking_for(using ? "iconv using #{using}" : "iconv") do
    ["", "-liconv"].any? do |opt|
      preserving_globals do
        yield if block_given?

        try_link(<<~SRC, opt)
          #include <stdlib.h>
          #include <iconv.h>
          int main(void)
          {
              iconv_t cd = iconv_open("", "");
              iconv(cd, NULL, NULL, NULL, NULL);
              return EXIT_SUCCESS;
          }
        SRC
      end
    end
  end
end

# File ext/nokogiri/extconf.rb, line 252
def try_package_configuration(pc)
  unless ENV.key?("NOKOGIRI_TEST_PKG_CONFIG_GEM")
    # try MakeMakefile#pkg_config, which uses the system utility `pkg-config`.
    return if checking_for("#{pc} using `pkg_config`", LOCAL_PACKAGE_RESPONSE) do
      pkg_config(pc)
    end
  end

  # `pkg-config` probably isn't installed, which appears to be the case for lots of freebsd systems.
  # let's fall back to the pkg-config gem, which knows how to parse .pc files, and wrap it with the
  # same logic as MakeMakefile#pkg_config
  begin
    require "rubygems"
    gem("pkg-config", REQUIRED_PKG_CONFIG_VERSION)
    require "pkg-config"

    checking_for("#{pc} using pkg-config gem version #{PKGConfig::VERSION}", LOCAL_PACKAGE_RESPONSE) do
      if PKGConfig.have_package(pc)
        cflags  = PKGConfig.cflags(pc)
        ldflags = PKGConfig.libs_only_L(pc)
        libs    = PKGConfig.libs_only_l(pc)

        Logging.message("pkg-config gem found package configuration for %s\n", pc)
        Logging.message("cflags: %s\nldflags: %s\nlibs: %s\n\n", cflags, ldflags, libs)

        [cflags, ldflags, libs]
      end
    end
  rescue LoadError
    message("Please install either the `pkg-config` utility or the `pkg-config` rubygem.\n")
  end
end

# File ext/nokogiri/extconf.rb, line 212
def unix?
  !(windows? || solaris? || darwin?)
end

# File ext/nokogiri/extconf.rb, line 192
def windows?
  RbConfig::CONFIG["target_os"].match?(/mingw|mswin/)
end

# File ext/nokogiri/extconf.rb, line 232
def zlib_source(version_string)
  # As of 2022-12, I'm starting to see failed downloads often enough from zlib.net that I want to
  # change the default to github.
  if ENV["NOKOGIRI_USE_CANONICAL_ZLIB_SOURCE"]
    "https://zlib.net/fossils/zlib-#{version_string}.tar.gz"
  else
    "https://github.com/madler/zlib/releases/download/v#{version_string}/zlib-#{version_string}.tar.gz"
  end
end