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diff --git a/EDK/Foundation/Library/Dxe/Print/BoxDraw.c b/EDK/Foundation/Library/Dxe/Print/BoxDraw.c
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+/*++
+
+Copyright (c) 2004, Intel Corporation
+All rights reserved. This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+Module Name:
+
+ BoxDraw.c
+
+Abstract:
+ Lib functions to support Box Draw Unicode code pages.
+
+
+
+Revision History
+
+--*/
+
+#include "Tiano.h"
+#include "EfiDriverLib.h"
+
+
+
+typedef struct {
+ CHAR16 Unicode;
+ CHAR8 PcAnsi;
+ CHAR8 Ascii;
+} UNICODE_TO_CHAR;
+
+
+//
+// This list is used to define the valid extend chars.
+// It also provides a mapping from Unicode to PCANSI or
+// ASCII. The ASCII mapping we just made up.
+//
+//
+
+static UNICODE_TO_CHAR UnicodeToPcAnsiOrAscii[] = {
+ BOXDRAW_HORIZONTAL, 0xc4, L'-',
+ BOXDRAW_VERTICAL, 0xb3, L'|',
+ BOXDRAW_DOWN_RIGHT, 0xda, L'/',
+ BOXDRAW_DOWN_LEFT, 0xbf, L'\\',
+ BOXDRAW_UP_RIGHT, 0xc0, L'\\',
+ BOXDRAW_UP_LEFT, 0xd9, L'/',
+ BOXDRAW_VERTICAL_RIGHT, 0xc3, L'|',
+ BOXDRAW_VERTICAL_LEFT, 0xb4, L'|',
+ BOXDRAW_DOWN_HORIZONTAL, 0xc2, L'+',
+ BOXDRAW_UP_HORIZONTAL, 0xc1, L'+',
+ BOXDRAW_VERTICAL_HORIZONTAL, 0xc5, L'+',
+ BOXDRAW_DOUBLE_HORIZONTAL, 0xcd, L'-',
+ BOXDRAW_DOUBLE_VERTICAL, 0xba, L'|',
+ BOXDRAW_DOWN_RIGHT_DOUBLE, 0xd5, L'/',
+ BOXDRAW_DOWN_DOUBLE_RIGHT, 0xd6, L'/',
+ BOXDRAW_DOUBLE_DOWN_RIGHT, 0xc9, L'/',
+ BOXDRAW_DOWN_LEFT_DOUBLE, 0xb8, L'\\',
+ BOXDRAW_DOWN_DOUBLE_LEFT, 0xb7, L'\\',
+ BOXDRAW_DOUBLE_DOWN_LEFT, 0xbb, L'\\',
+ BOXDRAW_UP_RIGHT_DOUBLE, 0xd4, L'\\',
+ BOXDRAW_UP_DOUBLE_RIGHT, 0xd3, L'\\',
+ BOXDRAW_DOUBLE_UP_RIGHT, 0xc8, L'\\',
+ BOXDRAW_UP_LEFT_DOUBLE, 0xbe, L'/',
+ BOXDRAW_UP_DOUBLE_LEFT, 0xbd, L'/',
+ BOXDRAW_DOUBLE_UP_LEFT, 0xbc, L'/',
+ BOXDRAW_VERTICAL_RIGHT_DOUBLE, 0xc6, L'|',
+ BOXDRAW_VERTICAL_DOUBLE_RIGHT, 0xc7, L'|',
+ BOXDRAW_DOUBLE_VERTICAL_RIGHT, 0xcc, L'|',
+ BOXDRAW_VERTICAL_LEFT_DOUBLE, 0xb5, L'|',
+ BOXDRAW_VERTICAL_DOUBLE_LEFT, 0xb6, L'|',
+ BOXDRAW_DOUBLE_VERTICAL_LEFT, 0xb9, L'|',
+ BOXDRAW_DOWN_HORIZONTAL_DOUBLE, 0xd1, L'+',
+ BOXDRAW_DOWN_DOUBLE_HORIZONTAL, 0xd2, L'+',
+ BOXDRAW_DOUBLE_DOWN_HORIZONTAL, 0xcb, L'+',
+ BOXDRAW_UP_HORIZONTAL_DOUBLE, 0xcf, L'+',
+ BOXDRAW_UP_DOUBLE_HORIZONTAL, 0xd0, L'+',
+ BOXDRAW_DOUBLE_UP_HORIZONTAL, 0xca, L'+',
+ BOXDRAW_VERTICAL_HORIZONTAL_DOUBLE, 0xd8, L'+',
+ BOXDRAW_VERTICAL_DOUBLE_HORIZONTAL, 0xd7, L'+',
+ BOXDRAW_DOUBLE_VERTICAL_HORIZONTAL, 0xce, L'+',
+
+ BLOCKELEMENT_FULL_BLOCK, 0xdb, L'*',
+ BLOCKELEMENT_LIGHT_SHADE, 0xb0, L'+',
+
+ GEOMETRICSHAPE_UP_TRIANGLE, 0x1e, L'^',
+ GEOMETRICSHAPE_RIGHT_TRIANGLE, 0x10, L'>',
+ GEOMETRICSHAPE_DOWN_TRIANGLE, 0x1f, L'v',
+ GEOMETRICSHAPE_LEFT_TRIANGLE, 0x11, L'<',
+
+ ARROW_LEFT, 0x3c, L'<',
+
+ ARROW_UP, 0x18, L'^',
+
+ ARROW_RIGHT, 0x3e, L'>',
+
+ ARROW_DOWN, 0x19, L'v',
+
+ 0x0000, 0x00
+};
+
+
+BOOLEAN
+LibIsValidTextGraphics (
+ IN CHAR16 Graphic,
+ OUT CHAR8 *PcAnsi, OPTIONAL
+ OUT CHAR8 *Ascii OPTIONAL
+ )
+/*++
+
+Routine Description:
+
+ Detects if a Unicode char is for Box Drawing text graphics.
+
+Arguments:
+
+ Grphic - Unicode char to test.
+
+ PcAnsi - Optional pointer to return PCANSI equivalent of Graphic.
+
+ Asci - Optional pointer to return Ascii equivalent of Graphic.
+
+Returns:
+
+ TRUE if Gpaphic is a supported Unicode Box Drawing character.
+
+--*/
+{
+ UNICODE_TO_CHAR *Table;
+
+ if ((((Graphic & 0xff00) != 0x2500) && ((Graphic & 0xff00) != 0x2100))) {
+
+ //
+ // Unicode drawing code charts are all in the 0x25xx range,
+ // arrows are 0x21xx
+ //
+ return FALSE;
+ }
+
+ for (Table = UnicodeToPcAnsiOrAscii; Table->Unicode != 0x0000; Table++) {
+ if (Graphic == Table->Unicode) {
+ if (PcAnsi != NULL) {
+ *PcAnsi = Table->PcAnsi;
+ }
+ if (Ascii != NULL) {
+ *Ascii = Table->Ascii;
+ }
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+
+
+BOOLEAN
+IsValidAscii (
+ IN CHAR16 Ascii
+ )
+/*++
+
+Routine Description:
+
+ Is it valid ascii char?
+
+Arguments:
+
+ Ascii - The char to check
+
+Returns:
+
+ TRUE - Is a ascii char
+ FALSE - Not a ascii char
+
+--*/
+{
+ if ((Ascii >= 0x20) && (Ascii <= 0x7f)) {
+ return TRUE;
+ }
+ return FALSE;
+}
+
+
+BOOLEAN
+IsValidEfiCntlChar (
+ IN CHAR16 CharC
+ )
+/*++
+
+Routine Description:
+
+ Is it valid EFI control char?
+
+Arguments:
+
+ Ascii - The char to check
+
+Returns:
+
+ TRUE - Is a valid EFI control char
+ FALSE - Not a valid EFI control char
+
+--*/
+{
+ if (CharC == CHAR_NULL || CharC == CHAR_BACKSPACE || CharC == CHAR_LINEFEED || CharC == CHAR_CARRIAGE_RETURN) {
+ return TRUE;
+ }
+ return FALSE;
+}
+