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Revert "ShellPkg: Fix echo to support displaying special characters"

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This reverts commit 95fc5a8775.
The above commit causes several regression of "echo" command:
1. Double quotes are not being stripped from the final text. UEFI Shell 2.2 section 3.4.5 chops out the quotes.
2. Output redirection is not working as expected. Text is being redirected, but the ‘> …’ text should not be.
3. Inconsistent special character handling.  For example, comments with # seem to be parsed out correctly, but handing of ^ is incorrect.
In summary, ‘echo “You are ^#1” > t.txt’ results in the below content in t.txt:
 “You are ^#1” > t.txt

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Jaben Carsey <jaben.carsey@intel.com>
Reviewed-by: Tapan Shah <tapandshah@hpe.com>
This commit is contained in:
Ruiyu Ni
2016-08-23 10:40:02 +08:00
parent d82d59edb0
commit 8e16ac3d74
2 changed files with 78 additions and 60 deletions
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3
ShellPkg/Library/UefiShellLevel3CommandsLib/UefiShellLevel3CommandsLib.uni
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@ -1,7 +1,7 @@
// /**
//
// (C) Copyright 2013-2015 Hewlett-Packard Development Company, L.P.<BR>
// Copyright (c) 2009 - 2016, Intel Corporation. All rights reserved. <BR>
// Copyright (c) 2009 - 2013, Intel Corporation. All rights reserved. <BR>
// 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
@ -55,7 +55,6 @@
#string STR_ECHO_ON #language en-US "Echo is on.\r\n"
#string STR_ECHO_OFF #language en-US "Echo is off.\r\n"
#string STR_ECHO_INVALID_PARAM #language en-US "%H%s%N: Invalid - too many parameters after '%s'\r\n"
#string STR_PAUSE_PROMPT #language en-US "Enter 'q' to quit, any other key to continue:\r\n"