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ShellPkg: print only valid characters for file overwrite prompt

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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':