Merge pull request #27 from Tieske/windowsHEADmaster

enable Windows support

2 files changed, 19 insertions, 0 deletions

diff --git a/README.md b/README.md
index 9ea4dd6..faf0194 100644
--- a/README.md
+++ b/README.md
@@ -42,6 +42,12 @@ zypper in lua-luaterm
 
 Adjust the repository URL to your version of openSUSE by substituting `openSUSE_Tumbleweed` with your actual version eg `opensSUSE_42.2`.
 
+## Windows
+
+lua-term works on Windows as well when virtual terminal processing is enabled. To have this enabled automatically ensure that
+[LuaSystem](https://github.com/lunarmodules/luasystem) is installed (version 0.4.0 or newer). If found, that module will be used
+to enable virtual terminal processing and to switch output to utf-8.
+
 Usage
 -----
 
diff --git a/term/init.lua b/term/init.lua
index bd2024b..b0387a6 100644
--- a/term/init.lua
+++ b/term/init.lua
@@ -18,6 +18,19 @@
 -- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 -- THE SOFTWARE.
 
+do -- set console to utf-8 and enable ANSI escape sequences on Windows
+  local ok, sys = pcall(require, "system")
+  if ok and sys.setconsoleflags and sys.windows then
+    sys.setconsoleoutputcp(sys.CODEPAGE_UTF8)
+    if sys.isatty(io.stdout) then
+      sys.setconsoleflags(io.stdout, sys.getconsoleflags(io.stdout) + sys.COF_VIRTUAL_TERMINAL_PROCESSING)
+    end
+    if sys.isatty(io.stderr) then
+      sys.setconsoleflags(io.stderr, sys.getconsoleflags(io.stderr) + sys.COF_VIRTUAL_TERMINAL_PROCESSING)
+    end
+  end
+end
+
 local term    = require 'term.core'
 local sformat = string.format
 local iotype  = io.type