win32: winansi: implement \033[J

1 files changed, 21 insertions, 0 deletions

diff --git a/win32/winansi.c b/win32/winansi.c
index e2e7010fb..51bfad67c 100644
--- a/win32/winansi.c
+++ b/win32/winansi.c
@@ -91,6 +91,24 @@ static void erase_in_line(void)
                 NULL);
 }
 
+static void erase_till_end_of_screen(void)
+{
+        CONSOLE_SCREEN_BUFFER_INFO sbi;
+        COORD pos;
+
+        if (!console)
+                return;
+
+        GetConsoleScreenBufferInfo(console, &sbi);
+        FillConsoleOutputCharacterA(console, ' ',
+                sbi.dwSize.X - sbi.dwCursorPosition.X, sbi.dwCursorPosition,
+                NULL);
+
+        pos.X = 0;
+        for (pos.Y = sbi.dwCursorPosition.Y+1; pos.Y < sbi.dwSize.Y; pos.Y++)
+                FillConsoleOutputCharacterA(console, ' ', sbi.dwSize.X,
+                                            pos, NULL);
+}
 
 static const char *set_attr(const char *str)
 {
@@ -230,6 +248,9 @@ static const char *set_attr(const char *str)
 
                 set_console_attr();
                 break;
+        case 'J':
+                erase_till_end_of_screen();
+                break;
         case 'K':
                 erase_in_line();
                 break;