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ShellPkg: Updates to 'help' command

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Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chris Phillips <chrisp@hp.com>
reviewed-by: Jaben Carsey <jaben.carsey@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13997 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
jcarsey
2012-12-13 21:26:22 +00:00
parent 7ac133d002
commit d51088b764
7 changed files with 87 additions and 6 deletions
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45
ShellPkg/Library/UefiShellCommandLib/UefiShellCommandLib.c
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@ -334,6 +334,16 @@ ShellCommandRegisterCommandName (
)
{
SHELL_COMMAND_INTERNAL_LIST_ENTRY *Node;
SHELL_COMMAND_INTERNAL_LIST_ENTRY *Command;
SHELL_COMMAND_INTERNAL_LIST_ENTRY *PrevCommand;
INTN LexicalMatchValue;
//
// Initialize local variables.
//
Command = NULL;
PrevCommand = NULL;
LexicalMatchValue = 0;
//
// ASSERTs for NULL parameters
@ -392,9 +402,40 @@ ShellCommandRegisterCommandName (
}
//
// add the new struct to the list
// Insert a new entry on top of the list
//
InsertTailList (&mCommandList.Link, &Node->Link);
InsertHeadList (&mCommandList.Link, &Node->Link);
//
// Move a new registered command to its sorted ordered location in the list
//
for (Command = (SHELL_COMMAND_INTERNAL_LIST_ENTRY *)GetFirstNode (&mCommandList.Link),
PrevCommand = (SHELL_COMMAND_INTERNAL_LIST_ENTRY *)GetFirstNode (&mCommandList.Link)
; !IsNull (&mCommandList.Link, &Command->Link)
; Command = (SHELL_COMMAND_INTERNAL_LIST_ENTRY *)GetNextNode (&mCommandList.Link, &Command->Link)) {
//
// Get Lexical Comparison Value between PrevCommand and Command list entry
//
LexicalMatchValue = gUnicodeCollation->StriColl (
gUnicodeCollation,
PrevCommand->CommandString,
Command->CommandString
);
//
// Swap PrevCommand and Command list entry if PrevCommand list entry
// is alphabetically greater than Command list entry
//
if (LexicalMatchValue > 0){
Command = (SHELL_COMMAND_INTERNAL_LIST_ENTRY *) SwapListEntries (&PrevCommand->Link, &Command->Link);
} else if (LexicalMatchValue < 0) {
//
// PrevCommand entry is lexically lower than Command entry
//
break;
}
}
return (RETURN_SUCCESS);
}