Merge commit '6c33fb4dcebd5464d89ca3fb98bdf23847d81fbf' as 'dist/termcolor'

2 years ago · b557656649
parent ce015954ea 6c33fb4dce
commit b557656649
20 changed files with 1689 additions and 0 deletions
--- a/dist/termcolor/.gitignore
+++ b/dist/termcolor/.gitignore
@ -0,0 +1,3 @@
+*.o
+build/
+docs/_build
--- a/dist/termcolor/.mailmap
+++ b/dist/termcolor/.mailmap
@ -0,0 +1 @@
+Ihor Kalnytskyi <ihor@kalnytskyi.com> <igor@kalnitsky.org>
--- a/dist/termcolor/.travis.yml
+++ b/dist/termcolor/.travis.yml
@ -0,0 +1,156 @@
+language: cpp
+
+script:
+  - eval "CXX=${COMPILER} CXXFLAGS=-std=c++11"
+  - cmake -DTERMCOLOR_TESTS=ON .
+  - cmake --build .
+  - ./test_termcolor
+
+jobs:
+  include:
+    - os: linux
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages: g++-5
+      env: COMPILER="g++-5"
+
+    - os: linux
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages: g++-6
+      env: COMPILER="g++-6"
+
+    - os: linux
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages: g++-7
+      env: COMPILER="g++-7"
+
+    - os: linux
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-xenial-3.8
+          packages: clang-3.8
+      env: COMPILER="clang++-3.8"
+
+    - os: linux
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-xenial-3.9
+          packages: clang-3.9
+      env: COMPILER="clang++-3.9"
+
+    - os: linux
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-xenial-4.0
+          packages: clang-4.0
+      env: COMPILER="clang++-4.0"
+
+    - os: linux
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-xenial-5.0
+          packages: clang-5.0
+      env: COMPILER="clang++-5.0"
+
+    - os: linux
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-xenial-6.0
+          packages: clang-6.0
+      env: COMPILER="clang++-6.0"
+
+    - os: linux
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-xenial-7
+          packages: clang-7
+      env: COMPILER="clang++-7"
+
+    - os: linux
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-xenial-8
+          packages: clang-8
+      env: COMPILER="clang++-8"
+
+    - os: linux
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+            - sourceline: deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial-9 main
+              key_url: https://apt.llvm.org/llvm-snapshot.gpg.key
+          packages: clang-9
+      env: COMPILER="clang++-9"
+
+    - os: osx
+      osx_image: xcode10
+
+    - os: osx
+      osx_image: xcode11
+
+    - os: windows
+      script:
+        - cmake -DTERMCOLOR_TESTS=ON .
+        - cmake --build .
+        - ./Debug/test_termcolor.exe
+
+    - os: windows
+      script:
+        - cmake -DCMAKE_SH="CMAKE_SH-NOTFOUND" -DTERMCOLOR_TESTS=ON -G "MinGW Makefiles" .
+        - cmake --build .
+        - ./test_termcolor
+
+    - script:
+        - mkdir -p /tmp/termcolor && cd "$_"
+        - cmake $TRAVIS_BUILD_DIR
+        - sudo make install
+
+        - mkdir -p /tmp/example && cd "$_"
+        - cmake $TRAVIS_BUILD_DIR/examples/cmake-package
+        - make && ./example
+      name: cmake package
+
+    - script:
+        - sudo pip install cmake
+        - mkdir -p /tmp/example && cd "$_"
+        - /usr/local/bin/cmake $TRAVIS_BUILD_DIR/examples/cmake-fetch
+        - make && ./example
+      name: cmake fetch
+
+    - script:
+        - mkdir -p /tmp/example && cd "$_"
+        - cmake $TRAVIS_BUILD_DIR/examples/cmake-submodule
+        - make && ./example
+      name: cmake submodule
+
+    - script:
+        - mkdir -p /tmp/example && cd "$_"
+        - cmake $TRAVIS_BUILD_DIR/examples/cmake-external
+        - make && ./example
+      name: cmake external
+
+notifications:
+  email: false
--- a/dist/termcolor/CMakeLists.txt
+++ b/dist/termcolor/CMakeLists.txt
@ -0,0 +1,55 @@
+cmake_minimum_required(VERSION 3.0)
+project(termcolor)
+
+#
+# target
+#
+
+add_library(${PROJECT_NAME} INTERFACE)
+add_library(${PROJECT_NAME}::${PROJECT_NAME} ALIAS ${PROJECT_NAME})
+
+target_include_directories(${PROJECT_NAME} INTERFACE
+  $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
+  $<INSTALL_INTERFACE:include>)
+target_compile_features(${PROJECT_NAME} INTERFACE cxx_std_11)
+
+#
+# tests
+#
+
+option(TERMCOLOR_TESTS "Build termcolor tests." OFF)
+
+if(TERMCOLOR_TESTS)
+  add_executable(test_${PROJECT_NAME} test/test.cpp)
+  target_link_libraries(
+    test_${PROJECT_NAME} ${PROJECT_NAME}::${PROJECT_NAME})
+endif()
+
+#
+# install
+#
+
+include(CMakePackageConfigHelpers)
+
+configure_package_config_file(
+  cmake/config.cmake.in
+  ${CMAKE_CURRENT_BINARY_DIR}/generated/${PROJECT_NAME}-config.cmake
+  INSTALL_DESTINATION lib/cmake/${PROJECT_NAME})
+
+install(
+  FILES ${CMAKE_CURRENT_BINARY_DIR}/generated/${PROJECT_NAME}-config.cmake
+  DESTINATION lib/cmake/${PROJECT_NAME})
+
+install(
+  DIRECTORY include/
+  DESTINATION include)
+
+install(
+  TARGETS ${PROJECT_NAME}
+  EXPORT ${PROJECT_NAME}-targets
+  INCLUDES DESTINATION include)
+
+install(
+  EXPORT ${PROJECT_NAME}-targets
+  NAMESPACE ${PROJECT_NAME}::
+  DESTINATION lib/cmake/${PROJECT_NAME})
--- a/dist/termcolor/LICENSE
+++ b/dist/termcolor/LICENSE
@ -0,0 +1,31 @@
+Copyright (c) 2013, Ihor Kalnytskyi.
+All rights reserved.
+
+Redistribution and use in source and binary forms of the software as well
+as documentation, with or without modification, are permitted provided
+that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright
+  notice, this list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the following
+  disclaimer in the documentation and/or other materials provided
+  with the distribution.
+
+* The names of the contributors may not be used to endorse or
+  promote products derived from this software without specific
+  prior written permission.
+
+THIS SOFTWARE AND DOCUMENTATION IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
+NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE AND DOCUMENTATION, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGE.
--- a/dist/termcolor/README.rst
+++ b/dist/termcolor/README.rst
@ -0,0 +1,236 @@
+Termcolor
+=========
+
+.. image:: docs/_static/example.png
+   :alt: termcolor in action
+   :align: left
+
+.. -*- inclusion-marker-for-sphinx-docs -*-
+
+Termcolor_ is a header-only C++ library for printing colored messages to the
+terminal. Written just for fun with a help of `the Force`_. Termcolor uses
+`ANSI color formatting`_, so you can use it on every system that is used such
+terminals (most \*nix systems, including Linux and Mac OS).
+
+.. note::
+
+   On Windows, `Windows API`_ is used instead of escape codes but some
+   limitations are applied (not everything is supported). That's why it's
+   recommended to enter `virtual terminal processing`_ mode and set
+   ``TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES`` macro to trick termcolor to use
+   ANSI color codes.
+
+   .. _virtual terminal processing: https://docs.microsoft.com/en-us/windows/console/console-virtual-terminal-sequences
+
+It's licensed under the BSD (3-clause) License. That basically means: do
+whatever you want as long as copyright sticks around.
+
+.. _Termcolor: https://github.com/ikalnytskyi/termcolor
+.. _the Force: https://starwars.wikia.com/wiki/The_Force
+.. _ANSI color formatting: https://en.wikipedia.org/wiki/ANSI_escape_code#Colors
+.. _Windows API: https://docs.microsoft.com/en-us/windows/console/setconsoletextattribute
+
+
+Installation
+------------
+
+* Add ``termcolor.hpp`` (grab it from ``include/termcolor/termcolor.hpp``) to
+  the project and use stream manipulators from the ``termcolor`` namespace.
+
+* You can also use vcpkg_ to install the library:
+
+  .. code:: sh
+
+     $ vcpkg install termcolor
+
+  .. _vcpkg: https://github.com/microsoft/vcpkg
+
+* Or if you are on macOS, you can use Homebrew_ for that purpose:
+
+  .. code:: sh
+
+     $ brew install termcolor
+
+  .. _Homebrew: https://brew.sh/
+
+* For up-to-date information about existing packages, refer to the the following
+  picture:
+
+  .. image:: https://repology.org/badge/vertical-allrepos/termcolor.svg
+     :target: https://repology.org/project/termcolor/versions
+     :alt: Packaging Status
+
+
+How to use?
+-----------
+
+It's very easy to use. The idea is built upon C++ stream manipulators.
+Typical «Hello World» application looks like this:
+
+.. code:: c++
+
+    #include <iostream>
+    #include <termcolor/termcolor.hpp>
+
+    int main(int /*argc*/, char** /*argv*/)
+    {
+        std::cout << termcolor::red << "Hello, ";                   // 16 colors
+        std::cout << termcolor::color<100> << "Colorful ";          // 256 colors
+        std::cout << termcolor::color<211, 54, 130> << "World!";    // true colors
+        std::cout << std::endl;
+        return 0;
+    }
+
+The application above prints a string using different colors. There is one
+caveat though. You must not forget to reset colors, otherwise they will be
+applied to other prints as well.
+
+.. code:: c++
+
+    std::cout << termcolor::red << "Hello, Colorful World!" << std::endl;
+    std::cout << "I'm RED too!" << std::endl;
+
+Correct version of the code above should look like this:
+
+.. code:: c++
+
+    std::cout << termcolor::red << "Hello, Colorful World!" << termcolor::reset << std::endl;
+    std::cout << termcolor::reset << "Here I'm!" << std::endl;
+
+By default, Termcolor ignores any colors for non-tty streams (e.g.
+``std::stringstream``), so the following snippet
+
+.. code:: c++
+
+    std::stringstream ss;
+    ss << termcolor::red << "unicorn";
+    std::cout << ss.str();
+
+will print «unicorn» using default color, not red. In order to change this
+behaviour one can use ``termcolor::colorize`` manipulator that enforce colors
+no matter what.
+
+
+What manipulators are supported?
+--------------------------------
+
+The manipulators are divided into four groups:
+
+* *foreground*, which changes text color;
+* *background*, which changes text background color;
+* *attributes*, which changes some text style (bold, underline, etc);
+* *control*, which changes termcolor's behaviour.
+
+Also, there are color manipulators for `16 colors`_, `256 colors`_ and
+`true colors`_ palettes.
+
+.. note::
+
+   While ``termcolor`` supports true color, it's required for the terminal
+   emulator you use to run your software to support true color too. So please
+   ensure it's supported before filing an issue.
+
+.. _16 colors: https://en.wikipedia.org/wiki/Color_depth#4-bit_color
+.. _256 colors: https://en.wikipedia.org/wiki/Color_depth#8-bit_color
+.. _true colors: https://en.wikipedia.org/wiki/Color_depth#True_color_(24-bit)
+
+
+Foreground manipulators
+.......................
+
+16 colors
+`````````
+
+#. ``termcolor::grey``
+#. ``termcolor::red``
+#. ``termcolor::green``
+#. ``termcolor::yellow``
+#. ``termcolor::blue``
+#. ``termcolor::magenta``
+#. ``termcolor::cyan``
+#. ``termcolor::white``
+#. ``termcolor::bright_grey``
+#. ``termcolor::bright_red``
+#. ``termcolor::bright_green``
+#. ``termcolor::bright_yellow``
+#. ``termcolor::bright_blue``
+#. ``termcolor::bright_magenta``
+#. ``termcolor::bright_cyan``
+#. ``termcolor::bright_white``
+
+256 colors
+``````````
+
+#. ``termcolor::color<256_COLOR_CODE>``
+
+true colors
+```````````
+
+#. ``termcolor::color<RED, GREEN, BLUE>``
+
+
+Background manipulators
+.......................
+
+16 colors
+`````````
+
+#. ``termcolor::on_grey``
+#. ``termcolor::on_red``
+#. ``termcolor::on_green``
+#. ``termcolor::on_yellow``
+#. ``termcolor::on_blue``
+#. ``termcolor::on_magenta``
+#. ``termcolor::on_cyan``
+#. ``termcolor::on_white``
+#. ``termcolor::on_bright_grey``
+#. ``termcolor::on_bright_red``
+#. ``termcolor::on_bright_green``
+#. ``termcolor::on_bright_yellow``
+#. ``termcolor::on_bright_blue``
+#. ``termcolor::on_bright_magenta``
+#. ``termcolor::on_bright_cyan``
+#. ``termcolor::on_bright_white``
+
+256 colors
+``````````
+
+#. ``termcolor::on_color<256_COLOR_CODE>``
+
+
+true colors
+```````````
+
+#. ``termcolor::on_color<RED, GREEN, BLUE>``
+
+
+Attribute manipulators
+......................
+
+(Windows API does not support these manipulators except for ``underline``)
+
+#. ``termcolor::bold``
+#. ``termcolor::dark``
+#. ``termcolor::italic``
+#. ``termcolor::underline``
+#. ``termcolor::blink``
+#. ``termcolor::reverse``
+#. ``termcolor::concealed``
+#. ``termcolor::crossed``
+
+Control manipulators
+....................
+
+(Windows API does not support these manipulators)
+
+#. ``termcolor::colorize``
+#. ``termcolor::nocolorize``
+
+
+Caveats
+-------
+
+#. On Windows, due to internal usage of ``<windows.h>``, global namespace could
+   be polluted with `min`/`max` macros. If such effect is desireable, please
+   consider using ``#define NOMINMAX`` before ``#include <termcolor.hpp>``.
+
--- a/dist/termcolor/cmake/config.cmake.in
+++ b/dist/termcolor/cmake/config.cmake.in
@ -0,0 +1,4 @@
+@PACKAGE_INIT@
+
+include("${CMAKE_CURRENT_LIST_DIR}/@CMAKE_PROJECT_NAME@-targets.cmake")
+check_required_components("@CMAKE_PROJECT_NAME@")
--- a/dist/termcolor/docs/_static/example.png
+++ b/dist/termcolor/docs/_static/example.png
--- a/dist/termcolor/docs/conf.py
+++ b/dist/termcolor/docs/conf.py
@ -0,0 +1,36 @@
+# -*- coding: utf-8 -*-
+"""
+termcolor's documentation settings
+"""
+from __future__ import unicode_literals
+
+import os
+
+
+# project information
+project = 'termcolor'
+copyright = '2013, Ihor Kalnytskyi'
+version = '0.1'
+release = '0.1'
+
+# sphinx settings
+extensions = []
+templates_path = ['_templates']
+source_suffix = '.rst'
+master_doc = 'index'
+exclude_patterns = ['_build']
+pygments_style = 'sphinx'
+highlight_language = 'c++'
+
+# html output settings
+html_theme = 'default'
+html_static_path = ['_static']
+
+# Unfortunately, Sphinx doesn't support code highlighting for standard
+# reStructuredText `code` directive. So let's register 'code' directive
+# as alias for Sphinx's own implementation.
+#
+# https://github.com/sphinx-doc/sphinx/issues/2155
+from docutils.parsers.rst import directives
+from sphinx.directives.code import CodeBlock
+directives.register_directive('code', CodeBlock)
--- a/dist/termcolor/docs/index.rst
+++ b/dist/termcolor/docs/index.rst
@ -0,0 +1,11 @@
+:orphan:
+
+Welcome to Termcolor C++ library
+================================
+
+.. image:: _static/example.png
+   :alt: termcolor in action
+   :align: center
+
+.. include:: ../README.rst
+    :start-after: -*- inclusion-marker-for-sphinx-docs -*-
--- a/dist/termcolor/examples/cmake-external/CMakeLists.txt
+++ b/dist/termcolor/examples/cmake-external/CMakeLists.txt
@ -0,0 +1,23 @@
+cmake_minimum_required(VERSION 3.0)
+project(example)
+
+include(ExternalProject)
+
+ExternalProject_Add(termcolor_project
+  GIT_REPOSITORY git://github.com/ikalnytskyi/termcolor.git
+  GIT_TAG origin/master
+
+  # Termcolor is a header-only library which means we need to
+  # neither configure nor build nor install it. Thus, noop
+  # the hooks.
+  CONFIGURE_COMMAND "" BUILD_COMMAND "" INSTALL_COMMAND "")
+ExternalProject_Get_Property(termcolor_project SOURCE_DIR)
+
+set(CMAKE_CXX_STANDARD 11)
+
+include_directories(${SOURCE_DIR}/include)
+add_library(termcolor INTERFACE IMPORTED)
+add_dependencies(termcolor termcolor_project)
+
+add_executable(${CMAKE_PROJECT_NAME} example.cpp)
+target_link_libraries(${CMAKE_PROJECT_NAME} PRIVATE termcolor)
--- a/dist/termcolor/examples/cmake-external/example.cpp
+++ b/dist/termcolor/examples/cmake-external/example.cpp
@ -0,0 +1,10 @@
+#include <iostream>
+#include <termcolor/termcolor.hpp>
+
+int main(int /* argc */, char** /* argv */) {
+    std::cout
+        << termcolor::yellow << "Warm welcome to "
+        << termcolor::blue << termcolor::underline << "TERMCOLOR"
+        << termcolor::reset << std::endl;
+    return 0;
+}
--- a/dist/termcolor/examples/cmake-fetch/CMakeLists.txt
+++ b/dist/termcolor/examples/cmake-fetch/CMakeLists.txt
@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.11)
+project(example)
+
+include(FetchContent)
+
+FetchContent_Declare(termcolor
+  GIT_REPOSITORY git://github.com/ikalnytskyi/termcolor.git
+  GIT_TAG origin/master)
+FetchContent_GetProperties(termcolor)
+
+if(NOT termcolor_POPULATED)
+  FetchContent_Populate(termcolor)
+  add_subdirectory(${termcolor_SOURCE_DIR} ${termcolor_BINARY_DIR} EXCLUDE_FROM_ALL)
+endif()
+
+add_executable(${CMAKE_PROJECT_NAME} example.cpp)
+target_link_libraries(${CMAKE_PROJECT_NAME} PRIVATE termcolor)
--- a/dist/termcolor/examples/cmake-fetch/example.cpp
+++ b/dist/termcolor/examples/cmake-fetch/example.cpp
@ -0,0 +1,10 @@
+#include <iostream>
+#include <termcolor/termcolor.hpp>
+
+int main(int /* argc */, char** /* argv */) {
+    std::cout
+        << termcolor::yellow << "Warm welcome to "
+        << termcolor::blue << termcolor::underline << "TERMCOLOR"
+        << termcolor::reset << std::endl;
+    return 0;
+}
--- a/dist/termcolor/examples/cmake-package/CMakeLists.txt
+++ b/dist/termcolor/examples/cmake-package/CMakeLists.txt
@ -0,0 +1,7 @@
+cmake_minimum_required(VERSION 3.0)
+project(example)
+
+find_package(termcolor REQUIRED)
+
+add_executable(${CMAKE_PROJECT_NAME} example.cpp)
+target_link_libraries(${CMAKE_PROJECT_NAME} PRIVATE termcolor::termcolor)
--- a/dist/termcolor/examples/cmake-package/example.cpp
+++ b/dist/termcolor/examples/cmake-package/example.cpp
@ -0,0 +1,10 @@
+#include <iostream>
+#include <termcolor/termcolor.hpp>
+
+int main(int /* argc */, char** /* argv */) {
+    std::cout
+        << termcolor::yellow << "Warm welcome to "
+        << termcolor::blue << termcolor::underline << "TERMCOLOR"
+        << termcolor::reset << std::endl;
+    return 0;
+}
--- a/dist/termcolor/examples/cmake-submodule/CMakeLists.txt
+++ b/dist/termcolor/examples/cmake-submodule/CMakeLists.txt
@ -0,0 +1,7 @@
+cmake_minimum_required(VERSION 3.0)
+project(example)
+
+add_subdirectory(../.. ${CMAKE_CURRENT_BINARY_DIR}/termcolor EXCLUDE_FROM_ALL)
+
+add_executable(${CMAKE_PROJECT_NAME} example.cpp)
+target_link_libraries(${CMAKE_PROJECT_NAME} PRIVATE termcolor::termcolor)
--- a/dist/termcolor/examples/cmake-submodule/example.cpp
+++ b/dist/termcolor/examples/cmake-submodule/example.cpp
@ -0,0 +1,10 @@
+#include <iostream>
+#include <termcolor/termcolor.hpp>
+
+int main(int /* argc */, char** /* argv */) {
+    std::cout
+        << termcolor::yellow << "Warm welcome to "
+        << termcolor::blue << termcolor::underline << "TERMCOLOR"
+        << termcolor::reset << std::endl;
+    return 0;
+}
--- a/dist/termcolor/include/termcolor/termcolor.hpp
+++ b/dist/termcolor/include/termcolor/termcolor.hpp
@ -0,0 +1,911 @@
+//!
+//! termcolor
+//! ~~~~~~~~~
+//!
+//! termcolor is a header-only c++ library for printing colored messages
+//! to the terminal. Written just for fun with a help of the Force.
+//!
+//! :copyright: (c) 2013 by Ihor Kalnytskyi
+//! :license: BSD, see LICENSE for details
+//!
+
+#ifndef TERMCOLOR_HPP_
+#define TERMCOLOR_HPP_
+
+#include <iostream>
+#include <cstdio>
+
+// Detect target's platform and set some macros in order to wrap platform
+// specific code this library depends on.
+#if defined(_WIN32) || defined(_WIN64)
+#   define TERMCOLOR_TARGET_WINDOWS
+#elif defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__))
+#   define TERMCOLOR_TARGET_POSIX
+#endif
+
+// If implementation has not been explicitly set, try to choose one based on
+// target platform.
+#if !defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES) && !defined(TERMCOLOR_USE_WINDOWS_API) && !defined(TERMCOLOR_USE_NOOP)
+#   if defined(TERMCOLOR_TARGET_POSIX)
+#       define TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES
+#       define TERMCOLOR_AUTODETECTED_IMPLEMENTATION
+#   elif defined(TERMCOLOR_TARGET_WINDOWS)
+#       define TERMCOLOR_USE_WINDOWS_API
+#       define TERMCOLOR_AUTODETECTED_IMPLEMENTATION
+#   endif
+#endif
+
+// These headers provide isatty()/fileno() functions, which are used for
+// testing whether a standard stream refers to the terminal.
+#if defined(TERMCOLOR_TARGET_POSIX)
+#   include <unistd.h>
+#elif defined(TERMCOLOR_TARGET_WINDOWS)
+#   include <io.h>
+#   include <windows.h>
+#endif
+
+
+namespace termcolor
+{
+    // Forward declaration of the `_internal` namespace.
+    // All comments are below.
+    namespace _internal
+    {
+        inline int colorize_index();
+        inline FILE* get_standard_stream(const std::ostream& stream);
+        inline bool is_colorized(std::ostream& stream);
+        inline bool is_atty(const std::ostream& stream);
+
+    #if defined(TERMCOLOR_TARGET_WINDOWS)
+        inline void win_change_attributes(std::ostream& stream, int foreground, int background=-1);
+    #endif
+    }
+
+    inline
+    std::ostream& colorize(std::ostream& stream)
+    {
+        stream.iword(_internal::colorize_index()) = 1L;
+        return stream;
+    }
+
+    inline
+    std::ostream& nocolorize(std::ostream& stream)
+    {
+        stream.iword(_internal::colorize_index()) = 0L;
+        return stream;
+    }
+
+    inline
+    std::ostream& reset(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[00m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream, -1, -1);
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& bold(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[1m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& dark(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[2m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& italic(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[3m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& underline(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[4m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream, -1, COMMON_LVB_UNDERSCORE);
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& blink(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[5m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& reverse(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[7m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& concealed(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[8m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& crossed(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[9m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+        #endif
+        }
+        return stream;
+    }
+
+    template <uint8_t code> inline
+    std::ostream& color(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            char command[12];
+            std::snprintf(command, sizeof(command), "\033[38;5;%dm", code);
+            stream << command;
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+        #endif
+        }
+        return stream;
+    }
+
+    template <uint8_t code> inline
+    std::ostream& on_color(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            char command[12];
+            std::snprintf(command, sizeof(command), "\033[48;5;%dm", code);
+            stream << command;
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+        #endif
+        }
+        return stream;
+    }
+
+    template <uint8_t r, uint8_t g, uint8_t b> inline
+    std::ostream& color(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            char command[20];
+            std::snprintf(command, sizeof(command), "\033[38;2;%d;%d;%dm", r, g, b);
+            stream << command;
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+        #endif
+        }
+        return stream;
+    }
+
+    template <uint8_t r, uint8_t g, uint8_t b> inline
+    std::ostream& on_color(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            char command[20];
+            std::snprintf(command, sizeof(command), "\033[48;2;%d;%d;%dm", r, g, b);
+            stream << command;
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& grey(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[30m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream,
+                0   // grey (black)
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& red(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[31m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream,
+                FOREGROUND_RED
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& green(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[32m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream,
+                FOREGROUND_GREEN
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& yellow(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[33m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream,
+                FOREGROUND_GREEN | FOREGROUND_RED
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& blue(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[34m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream,
+                FOREGROUND_BLUE
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& magenta(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[35m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream,
+                FOREGROUND_BLUE | FOREGROUND_RED
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& cyan(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[36m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream,
+                FOREGROUND_BLUE | FOREGROUND_GREEN
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& white(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[37m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream,
+                FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED
+            );
+        #endif
+        }
+        return stream;
+    }
+
+
+    inline
+    std::ostream& bright_grey(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[90m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream,
+                0 | FOREGROUND_INTENSITY   // grey (black)
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& bright_red(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[91m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream,
+                FOREGROUND_RED | FOREGROUND_INTENSITY
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& bright_green(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[92m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream,
+                FOREGROUND_GREEN | FOREGROUND_INTENSITY
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& bright_yellow(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[93m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream,
+                FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_INTENSITY
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& bright_blue(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[94m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream,
+                FOREGROUND_BLUE | FOREGROUND_INTENSITY
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& bright_magenta(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[95m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream,
+                FOREGROUND_BLUE | FOREGROUND_RED | FOREGROUND_INTENSITY
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& bright_cyan(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[96m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream,
+                FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_INTENSITY
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& bright_white(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[97m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream,
+                FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_INTENSITY
+            );
+        #endif
+        }
+        return stream;
+    }
+
+
+    inline
+    std::ostream& on_grey(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[40m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream, -1,
+                0   // grey (black)
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& on_red(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[41m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream, -1,
+                BACKGROUND_RED
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& on_green(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[42m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream, -1,
+                BACKGROUND_GREEN
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& on_yellow(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[43m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream, -1,
+                BACKGROUND_GREEN | BACKGROUND_RED
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& on_blue(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[44m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream, -1,
+                BACKGROUND_BLUE
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& on_magenta(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[45m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream, -1,
+                BACKGROUND_BLUE | BACKGROUND_RED
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& on_cyan(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[46m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream, -1,
+                BACKGROUND_GREEN | BACKGROUND_BLUE
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& on_white(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[47m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream, -1,
+                BACKGROUND_GREEN | BACKGROUND_BLUE | BACKGROUND_RED
+            );
+        #endif
+        }
+
+        return stream;
+    }
+
+
+    inline
+    std::ostream& on_bright_grey(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[100m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream, -1,
+                0 | BACKGROUND_INTENSITY   // grey (black)
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& on_bright_red(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[101m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream, -1,
+                BACKGROUND_RED | BACKGROUND_INTENSITY
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& on_bright_green(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[102m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream, -1,
+                BACKGROUND_GREEN | BACKGROUND_INTENSITY
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& on_bright_yellow(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[103m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream, -1,
+                BACKGROUND_GREEN | BACKGROUND_RED | BACKGROUND_INTENSITY
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& on_bright_blue(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[104m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream, -1,
+                BACKGROUND_BLUE | BACKGROUND_INTENSITY
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& on_bright_magenta(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[105m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream, -1,
+                BACKGROUND_BLUE | BACKGROUND_RED | BACKGROUND_INTENSITY
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& on_bright_cyan(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[106m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream, -1,
+                BACKGROUND_GREEN | BACKGROUND_BLUE | BACKGROUND_INTENSITY
+            );
+        #endif
+        }
+        return stream;
+    }
+
+    inline
+    std::ostream& on_bright_white(std::ostream& stream)
+    {
+        if (_internal::is_colorized(stream))
+        {
+        #if defined(TERMCOLOR_USE_ANSI_ESCAPE_SEQUENCES)
+            stream << "\033[107m";
+        #elif defined(TERMCOLOR_USE_WINDOWS_API)
+            _internal::win_change_attributes(stream, -1,
+                BACKGROUND_GREEN | BACKGROUND_BLUE | BACKGROUND_RED | BACKGROUND_INTENSITY
+            );
+        #endif
+        }
+
+        return stream;
+    }
+
+
+
+    //! Since C++ hasn't a way to hide something in the header from
+    //! the outer access, I have to introduce this namespace which
+    //! is used for internal purpose and should't be access from
+    //! the user code.
+    namespace _internal
+    {
+        // An index to be used to access a private storage of I/O streams. See
+        // colorize / nocolorize I/O manipulators for details. Due to the fact
+        // that static variables ain't shared between translation units, inline
+        // function with local static variable is used to do the trick and share
+        // the variable value between translation units.
+        inline int colorize_index()
+        {
+            static int colorize_index = std::ios_base::xalloc();
+            return colorize_index;
+        }
+
+        //! Since C++ hasn't a true way to extract stream handler
+        //! from the a given `std::ostream` object, I have to write
+        //! this kind of hack.
+        inline
+        FILE* get_standard_stream(const std::ostream& stream)
+        {
+            if (&stream == &std::cout)
+                return stdout;
+            else if ((&stream == &std::cerr) || (&stream == &std::clog))
+                return stderr;
+
+            return nullptr;
+        }
+
+        // Say whether a given stream should be colorized or not. It's always
+        // true for ATTY streams and may be true for streams marked with
+        // colorize flag.
+        inline
+        bool is_colorized(std::ostream& stream)
+        {
+            return is_atty(stream) || static_cast<bool>(stream.iword(colorize_index()));
+        }
+
+        //! Test whether a given `std::ostream` object refers to
+        //! a terminal.
+        inline
+        bool is_atty(const std::ostream& stream)
+        {
+            FILE* std_stream = get_standard_stream(stream);
+
+            // Unfortunately, fileno() ends with segmentation fault
+            // if invalid file descriptor is passed. So we need to
+            // handle this case gracefully and assume it's not a tty
+            // if standard stream is not detected, and 0 is returned.
+            if (!std_stream)
+                return false;
+
+        #if defined(TERMCOLOR_TARGET_POSIX)
+            return ::isatty(fileno(std_stream));
+        #elif defined(TERMCOLOR_TARGET_WINDOWS)
+            return ::_isatty(_fileno(std_stream));
+        #else
+            return false;
+        #endif
+        }
+
+    #if defined(TERMCOLOR_TARGET_WINDOWS)
+        //! Change Windows Terminal colors attribute. If some
+        //! parameter is `-1` then attribute won't changed.
+        inline void win_change_attributes(std::ostream& stream, int foreground, int background)
+        {
+            // yeah, i know.. it's ugly, it's windows.
+            static WORD defaultAttributes = 0;
+
+            // Windows doesn't have ANSI escape sequences and so we use special
+            // API to change Terminal output color. That means we can't
+            // manipulate colors by means of "std::stringstream" and hence
+            // should do nothing in this case.
+            if (!_internal::is_atty(stream))
+                return;
+
+            // get terminal handle
+            HANDLE hTerminal = INVALID_HANDLE_VALUE;
+            if (&stream == &std::cout)
+                hTerminal = GetStdHandle(STD_OUTPUT_HANDLE);
+            else if (&stream == &std::cerr)
+                hTerminal = GetStdHandle(STD_ERROR_HANDLE);
+
+            // save default terminal attributes if it unsaved
+            if (!defaultAttributes)
+            {
+                CONSOLE_SCREEN_BUFFER_INFO info;
+                if (!GetConsoleScreenBufferInfo(hTerminal, &info))
+                    return;
+                defaultAttributes = info.wAttributes;
+            }
+
+            // restore all default settings
+            if (foreground == -1 && background == -1)
+            {
+                SetConsoleTextAttribute(hTerminal, defaultAttributes);
+                return;
+            }
+
+            // get current settings
+            CONSOLE_SCREEN_BUFFER_INFO info;
+            if (!GetConsoleScreenBufferInfo(hTerminal, &info))
+                return;
+
+            if (foreground != -1)
+            {
+                info.wAttributes &= ~(info.wAttributes & 0x0F);
+                info.wAttributes |= static_cast<WORD>(foreground);
+            }
+
+            if (background != -1)
+            {
+                info.wAttributes &= ~(info.wAttributes & 0xF0);
+                info.wAttributes |= static_cast<WORD>(
				`@ -0,0 +1 @@`
				`Ihor Kalnytskyi <ihor@kalnytskyi.com> <igor@kalnitsky.org>`