vlib: use new filename format

vlib/term/term_windows.c.v

@@ -0,0 +1,40 @@
+module term
+
+import os
+
+struct Coord {
+	x i16
+	y i16
+}
+
+struct SmallRect {
+	Left   i16
+	Top    i16
+	Right  i16
+	Bottom i16
+}
+
+struct ConsoleScreenBufferInfo {
+	dwSize              Coord
+	dwCursorPosition    Coord
+	wAttributes         u16
+	srWindow            SmallRect
+	dwMaximumWindowSize Coord
+}
+
+fn C.GetConsoleScreenBufferInfo(handle os.HANDLE, info &ConsoleScreenBufferInfo) bool
+
+// get_terminal_size returns a number of colums and rows of terminal window.
+pub fn get_terminal_size() (int, int) {
+	if is_atty(1) > 0 && os.getenv('TERM') != 'dumb' {
+		info := ConsoleScreenBufferInfo{}
+
+		if C.GetConsoleScreenBufferInfo(C.GetStdHandle(C.STD_OUTPUT_HANDLE), &info) {
+			columns := int(info.srWindow.Right - info.srWindow.Left + 1)
+			rows := int(info.srWindow.Bottom - info.srWindow.Top + 1)
+			return columns, rows
+		}
+	}
+
+	return default_columns_size, default_rows_size
+}