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ShellPkg: print only valid characters for file overwrite prompt 

When copy command prompts to overwrite an existing file, pressing
backspace continuously removes everything including the shell prompt.
So print only valid characters for file overwrite prompt.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Tapan Shah <tapandshah@hpe.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
This commit is contained in:
Tapan Shah 2016-10-28 12:48:59 -07:00 committed by Jaben Carsey
parent b340056060
commit ac55b92554
1 changed files with 7 additions and 2 deletions
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9
ShellPkg/Library/UefiShellLib/UefiShellLib.c
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@ -3403,7 +3403,8 @@ ShellPromptForResponse (
break;
}
}
break; case ShellPromptResponseTypeYesNoAllCancel:
break;
case ShellPromptResponseTypeYesNoAllCancel:
if (Prompt != NULL) {
ShellPrintEx(-1, -1, L"%s", Prompt);
}
@ -3421,7 +3422,11 @@ ShellPromptForResponse (
if (EFI_ERROR(Status)) {
break;
}
ShellPrintEx(-1, -1, L"%c", Key.UnicodeChar);
if (Key.UnicodeChar <= 127 && Key.UnicodeChar >= 32) {
ShellPrintEx (-1, -1, L"%c", Key.UnicodeChar);
}
switch (Key.UnicodeChar) {
case L'Y':
case L'y':