update for github.com/AlecAivazis/survey => gopkg.in/AlecAivazis/survey.v1 package

vendor/gopkg.in/AlecAivazis/survey.v1/terminal/display_windows.go

@@ -0,0 +1,28 @@
+package terminal
+
+import (
+	"os"
+	"syscall"
+	"unsafe"
+)
+
+func EraseLine(mode EraseLineMode) {
+	handle := syscall.Handle(os.Stdout.Fd())
+
+	var csbi consoleScreenBufferInfo
+	procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi)))
+
+	var w uint32
+	var x Short
+	cursor := csbi.cursorPosition
+	switch mode {
+	case ERASE_LINE_END:
+		x = csbi.size.X
+	case ERASE_LINE_START:
+		x = 0
+	case ERASE_LINE_ALL:
+		cursor.X = 0
+		x = csbi.size.X
+	}
+	procFillConsoleOutputCharacter.Call(uintptr(handle), uintptr(' '), uintptr(x), uintptr(*(*int32)(unsafe.Pointer(&cursor))), uintptr(unsafe.Pointer(&w)))
+}