sample dir locals

.dir-locals.el

(
 (nil . ((tab-width . 4)
     (indent-tabs-mode . nil)))

 (c++-mode . ((c-basic-offset . 4)
        (tab-width . 4)
        (indent-tabs-mode . t)
        (compile-command . "cmake --build . --config Debug --target INSTALL")
        (cd-compile-directory . "C:\\Users\\sonictk/Git\\experiments\\opengl_test\\build")
        (cc-search-directories . ("."
                    ".\\thirdparty"
                    "C:\\Program Files\\glew\\include"
                    "C:\\Program Files\\GLFW\\include"
                    "C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\Community\\VC\\Tools\\MSVC\\14.11.25503\\include"
                    "C:\\Program Files (x86)\\Windows Kits\\10\\Include\\10.0.14393.0\\shared"
                    "C:\\Program Files (x86)\\Windows Kits\\10\\Include\\10.0.14393.0\\ucrt"
                    "C:\\Program Files (x86)\\Windows Kits\\10\\Include\\10.0.14393.0\\um"
                    "C:\\Program Files (x86)\\Windows Kits\\10\\Include\\10.0.14393.0\\winrt"))
        ))

 (c-mode . ((c-basic-offset . 4)
      (tab-width . 4)
      (indent-tabs-mode . t)
      (compile-command . "cmake --build . --config Debug --target INSTALL")
      (cd-compile-directory . "C:\\Users\\sonictk/Git\\experiments\\opengl_test\\build")
      (cc-search-directories . ("."
                    ".\\thirdparty"
                    "C:\\Program Files\\glew\\include"
                    "C:\\Program Files\\GLFW\\include"
                    "C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\Community\\VC\\Tools\\MSVC\\14.11.25503\\include"
                    "C:\\Program Files (x86)\\Windows Kits\\10\\Include\\10.0.14393.0\\shared"
                    "C:\\Program Files (x86)\\Windows Kits\\10\\Include\\10.0.14393.0\\ucrt"
                    "C:\\Program Files (x86)\\Windows Kits\\10\\Include\\10.0.14393.0\\um"
                    "C:\\Program Files (x86)\\Windows Kits\\10\\Include\\10.0.14393.0\\winrt"))
      ))
)