Implement escape sequence for cursor down

1 files changed, 12 insertions, 21 deletions

diff --git a/win32/winansi.c b/win32/winansi.c
index 415105fcd..c47e29a28 100644
--- a/win32/winansi.c
+++ b/win32/winansi.c
@@ -123,7 +123,7 @@ static void erase_till_end_of_screen(void)
                                             pos, &dummy);
 }
 
-static void move_cursor_up(int n)
+static void move_cursor_row(int n)
 {
         CONSOLE_SCREEN_BUFFER_INFO sbi;
 
@@ -131,11 +131,11 @@ static void move_cursor_up(int n)
                 return;
 
         GetConsoleScreenBufferInfo(console, &sbi);
-        sbi.dwCursorPosition.Y -= n;
+        sbi.dwCursorPosition.Y += n;
         SetConsoleCursorPosition(console, sbi.dwCursorPosition);
 }
 
-static void move_cursor_forward(int n)
+static void move_cursor_column(int n)
 {
         CONSOLE_SCREEN_BUFFER_INFO sbi;
 
@@ -147,18 +147,6 @@ static void move_cursor_forward(int n)
         SetConsoleCursorPosition(console, sbi.dwCursorPosition);
 }
 
-static void move_cursor_back(int n)
-{
-        CONSOLE_SCREEN_BUFFER_INFO sbi;
-
-        if (!console)
-                return;
-
-        GetConsoleScreenBufferInfo(console, &sbi);
-        sbi.dwCursorPosition.X -= n;
-        SetConsoleCursorPosition(console, sbi.dwCursorPosition);
-}
-
 static void move_cursor(int x, int y)
 {
         COORD pos;
@@ -309,14 +297,17 @@ static const char *set_attr(const char *str)
 
                 set_console_attr();
                 break;
-        case 'A':
-                move_cursor_up(strtol(str, (char **)&str, 10));
+        case 'A': /* up */
+                move_cursor_row(-strtol(str, (char **)&str, 10));
+                break;
+        case 'B': /* down */
+                move_cursor_row(strtol(str, (char **)&str, 10));
                 break;
-        case 'C':
-                move_cursor_forward(strtol(str, (char **)&str, 10));
+        case 'C': /* forward */
+                move_cursor_column(strtol(str, (char **)&str, 10));
                 break;
-        case 'D':
-                move_cursor_back(strtol(str, (char **)&str, 10));
+        case 'D': /* back */
+                move_cursor_column(-strtol(str, (char **)&str, 10));
                 break;
         case 'H':
                 if (!len)