[mirror_edk2.git] / ShellPkg / Library / UefiShellLevel1CommandsLib / UefiShellLevel1CommandsLib.c

/** @file\r
  Main file for NULL named library for level 1 shell command functions.\r
\r
  Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>\r
  This program and the accompanying materials\r
  are licensed and made available under the terms and conditions of the BSD License\r
  which accompanies this distribution.  The full text of the license may be found at\r
  http://opensource.org/licenses/bsd-license.php\r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#include "UefiShellLevel1CommandsLib.h"\r
\r
STATIC CONST CHAR16 mFileName[] = L"ShellCommands";\r
EFI_HANDLE gShellLevel1HiiHandle = NULL;\r
\r
/**\r
  Return the help text filename.  Only used if no HII information found.\r
\r
  @retval the filename.\r
**/\r
CONST CHAR16*\r
EFIAPI\r
ShellCommandGetManFileNameLevel1 (\r
  VOID\r
  )\r
{\r
  return (mFileName);\r
}\r
\r
/**\r
  Constructor for the Shell Level 1 Commands library.\r
\r
  Install the handlers for level 1 UEFI Shell 2.0 commands.\r
\r
  @param ImageHandle    the image handle of the process\r
  @param SystemTable    the EFI System Table pointer\r
\r
  @retval EFI_SUCCESS        the shell command handlers were installed sucessfully\r
  @retval EFI_UNSUPPORTED    the shell level required was not found.\r
**/\r
EFI_STATUS\r
EFIAPI\r
ShellLevel1CommandsLibConstructor (\r
  IN EFI_HANDLE        ImageHandle,\r
  IN EFI_SYSTEM_TABLE  *SystemTable\r
  )\r
{\r
  //\r
  // if shell level is less than 2 do nothing\r
  //\r
  if (PcdGet8(PcdShellSupportLevel) < 1) {\r
    return (EFI_SUCCESS);\r
  }\r
\r
  gShellLevel1HiiHandle = HiiAddPackages (&gShellLevel1HiiGuid, gImageHandle, UefiShellLevel1CommandsLibStrings, NULL);\r
  if (gShellLevel1HiiHandle == NULL) {\r
    return (EFI_DEVICE_ERROR);\r
  }\r
\r
  //\r
  // install our shell command handlers that are always installed\r
  //\r
  ShellCommandRegisterCommandName(L"stall",  ShellCommandRunStall   , ShellCommandGetManFileNameLevel1, 1, L"", FALSE, gShellLevel1HiiHandle, (EFI_STRING_ID)(PcdGet8(PcdShellSupportLevel) < 3 ? 0 : STRING_TOKEN(STR_GET_HELP_STALL) ));\r
  ShellCommandRegisterCommandName(L"for",    ShellCommandRunFor     , ShellCommandGetManFileNameLevel1, 1, L"", FALSE, gShellLevel1HiiHandle, (EFI_STRING_ID)(PcdGet8(PcdShellSupportLevel) < 3 ? 0 : STRING_TOKEN(STR_GET_HELP_FOR)   ));\r
  ShellCommandRegisterCommandName(L"goto",   ShellCommandRunGoto    , ShellCommandGetManFileNameLevel1, 1, L"", FALSE, gShellLevel1HiiHandle, (EFI_STRING_ID)(PcdGet8(PcdShellSupportLevel) < 3 ? 0 : STRING_TOKEN(STR_GET_HELP_GOTO)  ));\r
  ShellCommandRegisterCommandName(L"if",     ShellCommandRunIf      , ShellCommandGetManFileNameLevel1, 1, L"", FALSE, gShellLevel1HiiHandle, (EFI_STRING_ID)(PcdGet8(PcdShellSupportLevel) < 3 ? 0 : STRING_TOKEN(STR_GET_HELP_IF)    ));\r
  ShellCommandRegisterCommandName(L"shift",  ShellCommandRunShift   , ShellCommandGetManFileNameLevel1, 1, L"", FALSE, gShellLevel1HiiHandle, (EFI_STRING_ID)(PcdGet8(PcdShellSupportLevel) < 3 ? 0 : STRING_TOKEN(STR_GET_HELP_SHIFT) ));\r
  ShellCommandRegisterCommandName(L"exit",   ShellCommandRunExit    , ShellCommandGetManFileNameLevel1, 1, L"", TRUE , gShellLevel1HiiHandle, (EFI_STRING_ID)(PcdGet8(PcdShellSupportLevel) < 3 ? 0 : STRING_TOKEN(STR_GET_HELP_EXIT)  ));\r
  ShellCommandRegisterCommandName(L"else",   ShellCommandRunElse    , ShellCommandGetManFileNameLevel1, 1, L"", FALSE, gShellLevel1HiiHandle, (EFI_STRING_ID)(PcdGet8(PcdShellSupportLevel) < 3 ? 0 : STRING_TOKEN(STR_GET_HELP_ELSE)  ));\r
  ShellCommandRegisterCommandName(L"endif",  ShellCommandRunEndIf   , ShellCommandGetManFileNameLevel1, 1, L"", FALSE, gShellLevel1HiiHandle, (EFI_STRING_ID)(PcdGet8(PcdShellSupportLevel) < 3 ? 0 : STRING_TOKEN(STR_GET_HELP_ENDIF) ));\r
  ShellCommandRegisterCommandName(L"endfor", ShellCommandRunEndFor  , ShellCommandGetManFileNameLevel1, 1, L"", FALSE, gShellLevel1HiiHandle, (EFI_STRING_ID)(PcdGet8(PcdShellSupportLevel) < 3 ? 0 : STRING_TOKEN(STR_GET_HELP_ENDFOR)));\r
\r
  return (EFI_SUCCESS);\r
}\r
\r
/**\r
  Destructor for the library.  free any resources.\r
\r
  @param ImageHandle            The image handle of the process.\r
  @param SystemTable            The EFI System Table pointer.\r
**/\r
EFI_STATUS\r
EFIAPI\r
ShellLevel1CommandsLibDestructor (\r
  IN EFI_HANDLE        ImageHandle,\r
  IN EFI_SYSTEM_TABLE  *SystemTable\r
  )\r
{\r
  if (gShellLevel1HiiHandle != NULL) {\r
    HiiRemovePackages(gShellLevel1HiiHandle);\r
  }\r
  return (EFI_SUCCESS);\r
}\r
\r
/**\r
  Test a node to see if meets the criterion.\r
\r
  It functions so that count starts at 1 and it increases or decreases when it\r
  hits the specified tags.  when it hits zero the location has been found.\r
\r
  DecrementerTag and IncrementerTag are used to get around for/endfor and \r
  similar paired types where the entire middle should be ignored.\r
\r
  If label is used it will be used instead of the count.\r
\r
  @param[in] Function          The function to use to enumerate through the \r
                               list.  Normally GetNextNode or GetPreviousNode.\r
  @param[in] DecrementerTag    The tag to decrement the count at.\r
  @param[in] IncrementerTag    The tag to increment the count at.\r
  @param[in] Label             A label to look for.\r
  @param[in, out] ScriptFile   The pointer to the current script file structure.\r
  @param[in] MovePast          TRUE makes function return 1 past the found \r
                               location.\r
  @param[in] FindOnly          TRUE to not change the ScriptFile.\r
  @param[in] CommandNode       The pointer to the Node to test.\r
  @param[in, out] TargetCount  The pointer to the current count.\r
**/\r
BOOLEAN\r
EFIAPI\r
TestNodeForMove (\r
  IN CONST LIST_MANIP_FUNC      Function,\r
  IN CONST CHAR16               *DecrementerTag,\r
  IN CONST CHAR16               *IncrementerTag,\r
  IN CONST CHAR16               *Label OPTIONAL,\r
  IN OUT SCRIPT_FILE            *ScriptFile,\r
  IN CONST BOOLEAN              MovePast,\r
  IN CONST BOOLEAN              FindOnly,\r
  IN CONST SCRIPT_COMMAND_LIST  *CommandNode,\r
  IN OUT UINTN                  *TargetCount\r
  )\r
{\r
  BOOLEAN             Found;\r
  CHAR16              *CommandName;\r
  CHAR16              *CommandNameWalker;\r
  CHAR16              *TempLocation;\r
\r
  Found = FALSE;\r
\r
  //\r
  // get just the first part of the command line...\r
  //\r
  CommandName   = NULL;\r
  CommandName   = StrnCatGrow(&CommandName, NULL, CommandNode->Cl, 0);\r
  CommandNameWalker = CommandName;\r
  while(CommandNameWalker[0] == L' ') {\r
    CommandNameWalker++;\r
  }\r
  TempLocation  = StrStr(CommandNameWalker, L" ");\r
\r
  if (TempLocation != NULL) {\r
    *TempLocation = CHAR_NULL;\r
  }\r
\r
  //\r
  // did we find a nested item ?\r
  //\r
  if (gUnicodeCollation->StriColl(\r
      gUnicodeCollation,\r
      (CHAR16*)CommandNameWalker,\r
      (CHAR16*)IncrementerTag) == 0) {\r
    (*TargetCount)++;\r
  } else if (gUnicodeCollation->StriColl(\r
      gUnicodeCollation,\r
      (CHAR16*)CommandNameWalker,\r
      (CHAR16*)DecrementerTag) == 0) {\r
    if (*TargetCount > 0) {\r
      (*TargetCount)--;\r
    }\r
  }\r
\r
  //\r
  // did we find the matching one...\r
  //\r
  if (Label == NULL) {\r
    if (*TargetCount == 0) {\r
      Found = TRUE;\r
      if (!FindOnly) {\r
        if (MovePast) {\r
          ScriptFile->CurrentCommand = (SCRIPT_COMMAND_LIST *)(*Function)(&ScriptFile->CommandList, &CommandNode->Link);\r
        } else {\r
          ScriptFile->CurrentCommand = (SCRIPT_COMMAND_LIST *)CommandNode;\r
        }\r
      }\r
    }\r
  } else {\r
    if (gUnicodeCollation->StriColl(\r
      gUnicodeCollation,\r
      (CHAR16*)CommandNameWalker,\r
      (CHAR16*)Label) == 0\r
      && (*TargetCount) == 0) {\r
      Found = TRUE;\r
      if (!FindOnly) {\r
        //\r
        // we found the target label without loops\r
        //\r
        if (MovePast) {\r
          ScriptFile->CurrentCommand = (SCRIPT_COMMAND_LIST *)(*Function)(&ScriptFile->CommandList, &CommandNode->Link);\r
        } else {\r
          ScriptFile->CurrentCommand = (SCRIPT_COMMAND_LIST *)CommandNode;\r
        }\r
      }\r
    }\r
  }\r
\r
  //\r
  // Free the memory for this loop...\r
  //\r
  FreePool(CommandName);\r
  return (Found);\r
}\r
\r
/**\r
  Move the script pointer from 1 tag (line) to another.\r
\r
  It functions so that count starts at 1 and it increases or decreases when it\r
  hits the specified tags.  when it hits zero the location has been found.\r
\r
  DecrementerTag and IncrementerTag are used to get around for/endfor and \r
  similar paired types where the entire middle should be ignored.\r
\r
  If label is used it will be used instead of the count.\r
\r
  @param[in] Function          The function to use to enumerate through the \r
                               list.  Normally GetNextNode or GetPreviousNode.\r
  @param[in] DecrementerTag    The tag to decrement the count at.\r
  @param[in] IncrementerTag    The tag to increment the count at.\r
  @param[in] Label             A label to look for.\r
  @param[in, out] ScriptFile   The pointer to the current script file structure.\r
  @param[in] MovePast          TRUE makes function return 1 past the found \r
                               location.\r
  @param[in] FindOnly          TRUE to not change the ScriptFile.\r
  @param[in] WrapAroundScript  TRUE to wrap end-to-begining or vise versa in \r
                               searching.\r
**/\r
BOOLEAN\r
EFIAPI\r
MoveToTag (\r
  IN CONST LIST_MANIP_FUNC      Function,\r
  IN CONST CHAR16               *DecrementerTag,\r
  IN CONST CHAR16               *IncrementerTag,\r
  IN CONST CHAR16               *Label OPTIONAL,\r
  IN OUT SCRIPT_FILE            *ScriptFile,\r
  IN CONST BOOLEAN              MovePast,\r
  IN CONST BOOLEAN              FindOnly,\r
  IN CONST BOOLEAN              WrapAroundScript\r
  )\r
{\r
  SCRIPT_COMMAND_LIST *CommandNode;\r
  BOOLEAN             Found;\r
  UINTN               TargetCount;\r
\r
  if (Label == NULL) {\r
    TargetCount       = 1;\r
  } else {\r
    TargetCount       = 0;\r
  }\r
\r
  if (ScriptFile == NULL) {\r
    return FALSE;\r
  }\r
\r
  for (CommandNode = (SCRIPT_COMMAND_LIST *)(*Function)(&ScriptFile->CommandList, &ScriptFile->CurrentCommand->Link), Found = FALSE\r
    ;  !IsNull(&ScriptFile->CommandList, &CommandNode->Link)&& !Found\r
    ;  CommandNode = (SCRIPT_COMMAND_LIST *)(*Function)(&ScriptFile->CommandList, &CommandNode->Link)\r
   ){\r
    Found = TestNodeForMove(\r
      Function,\r
      DecrementerTag,\r
      IncrementerTag,\r
      Label,\r
      ScriptFile,\r
      MovePast,\r
      FindOnly,\r
      CommandNode,\r
      &TargetCount);\r
  }\r
\r
  if (WrapAroundScript && !Found) {\r
    for (CommandNode = (SCRIPT_COMMAND_LIST *)GetFirstNode(&ScriptFile->CommandList), Found = FALSE\r
      ;  CommandNode != ScriptFile->CurrentCommand && !Found\r
      ;  CommandNode = (SCRIPT_COMMAND_LIST *)(*Function)(&ScriptFile->CommandList, &CommandNode->Link)\r
     ){\r
      Found = TestNodeForMove(\r
        Function,\r
        DecrementerTag,\r
        IncrementerTag,\r
        Label,\r
        ScriptFile,\r
        MovePast,\r
        FindOnly,\r
        CommandNode,\r
        &TargetCount);\r
    }\r
  }\r
  return (Found);\r
}\r
\r
Commit	Line	Data
a405b86d	1	/** @file\r
	2	Main file for NULL named library for level 1 shell command functions.\r
	3	\r
77dcec12	4	Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>\r
a405b86d	5	This program and the accompanying materials\r
	6	are licensed and made available under the terms and conditions of the BSD License\r
	7	which accompanies this distribution. The full text of the license may be found at\r
	8	http://opensource.org/licenses/bsd-license.php\r
	9	\r
	10	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	11	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	12	\r
	13	**/\r
	14	\r
	15	#include "UefiShellLevel1CommandsLib.h"\r
	16	\r
	17	STATIC CONST CHAR16 mFileName[] = L"ShellCommands";\r
	18	EFI_HANDLE gShellLevel1HiiHandle = NULL;\r
a405b86d	19	\r
77dcec12	20	/**\r
	21	Return the help text filename. Only used if no HII information found.\r
	22	\r
	23	@retval the filename.\r
	24	**/\r
a405b86d	25	CONST CHAR16*\r
	26	EFIAPI\r
	27	ShellCommandGetManFileNameLevel1 (\r
	28	VOID\r
	29	)\r
	30	{\r
	31	return (mFileName);\r
	32	}\r
	33	\r
	34	/**\r
	35	Constructor for the Shell Level 1 Commands library.\r
	36	\r
	37	Install the handlers for level 1 UEFI Shell 2.0 commands.\r
	38	\r
	39	@param ImageHandle the image handle of the process\r
	40	@param SystemTable the EFI System Table pointer\r
	41	\r
	42	@retval EFI_SUCCESS the shell command handlers were installed sucessfully\r
	43	@retval EFI_UNSUPPORTED the shell level required was not found.\r
	44	**/\r
	45	EFI_STATUS\r
	46	EFIAPI\r
	47	ShellLevel1CommandsLibConstructor (\r
	48	IN EFI_HANDLE ImageHandle,\r
	49	IN EFI_SYSTEM_TABLE *SystemTable\r
	50	)\r
	51	{\r
	52	//\r
	53	// if shell level is less than 2 do nothing\r
	54	//\r
	55	if (PcdGet8(PcdShellSupportLevel) < 1) {\r
82571fb5	56	return (EFI_SUCCESS);\r
a405b86d	57	}\r
	58	\r
	59	gShellLevel1HiiHandle = HiiAddPackages (&gShellLevel1HiiGuid, gImageHandle, UefiShellLevel1CommandsLibStrings, NULL);\r
	60	if (gShellLevel1HiiHandle == NULL) {\r
	61	return (EFI_DEVICE_ERROR);\r
	62	}\r
	63	\r
	64	//\r
	65	// install our shell command handlers that are always installed\r
	66	//\r
77dcec12	67	ShellCommandRegisterCommandName(L"stall", ShellCommandRunStall , ShellCommandGetManFileNameLevel1, 1, L"", FALSE, gShellLevel1HiiHandle, (EFI_STRING_ID)(PcdGet8(PcdShellSupportLevel) < 3 ? 0 : STRING_TOKEN(STR_GET_HELP_STALL) ));\r
a405b86d	68	ShellCommandRegisterCommandName(L"for", ShellCommandRunFor , ShellCommandGetManFileNameLevel1, 1, L"", FALSE, gShellLevel1HiiHandle, (EFI_STRING_ID)(PcdGet8(PcdShellSupportLevel) < 3 ? 0 : STRING_TOKEN(STR_GET_HELP_FOR) ));\r
	69	ShellCommandRegisterCommandName(L"goto", ShellCommandRunGoto , ShellCommandGetManFileNameLevel1, 1, L"", FALSE, gShellLevel1HiiHandle, (EFI_STRING_ID)(PcdGet8(PcdShellSupportLevel) < 3 ? 0 : STRING_TOKEN(STR_GET_HELP_GOTO) ));\r
	70	ShellCommandRegisterCommandName(L"if", ShellCommandRunIf , ShellCommandGetManFileNameLevel1, 1, L"", FALSE, gShellLevel1HiiHandle, (EFI_STRING_ID)(PcdGet8(PcdShellSupportLevel) < 3 ? 0 : STRING_TOKEN(STR_GET_HELP_IF) ));\r
	71	ShellCommandRegisterCommandName(L"shift", ShellCommandRunShift , ShellCommandGetManFileNameLevel1, 1, L"", FALSE, gShellLevel1HiiHandle, (EFI_STRING_ID)(PcdGet8(PcdShellSupportLevel) < 3 ? 0 : STRING_TOKEN(STR_GET_HELP_SHIFT) ));\r
	72	ShellCommandRegisterCommandName(L"exit", ShellCommandRunExit , ShellCommandGetManFileNameLevel1, 1, L"", TRUE , gShellLevel1HiiHandle, (EFI_STRING_ID)(PcdGet8(PcdShellSupportLevel) < 3 ? 0 : STRING_TOKEN(STR_GET_HELP_EXIT) ));\r
	73	ShellCommandRegisterCommandName(L"else", ShellCommandRunElse , ShellCommandGetManFileNameLevel1, 1, L"", FALSE, gShellLevel1HiiHandle, (EFI_STRING_ID)(PcdGet8(PcdShellSupportLevel) < 3 ? 0 : STRING_TOKEN(STR_GET_HELP_ELSE) ));\r
	74	ShellCommandRegisterCommandName(L"endif", ShellCommandRunEndIf , ShellCommandGetManFileNameLevel1, 1, L"", FALSE, gShellLevel1HiiHandle, (EFI_STRING_ID)(PcdGet8(PcdShellSupportLevel) < 3 ? 0 : STRING_TOKEN(STR_GET_HELP_ENDIF) ));\r
	75	ShellCommandRegisterCommandName(L"endfor", ShellCommandRunEndFor , ShellCommandGetManFileNameLevel1, 1, L"", FALSE, gShellLevel1HiiHandle, (EFI_STRING_ID)(PcdGet8(PcdShellSupportLevel) < 3 ? 0 : STRING_TOKEN(STR_GET_HELP_ENDFOR)));\r
	76	\r
	77	return (EFI_SUCCESS);\r
	78	}\r
	79	\r
	80	/**\r
	81	Destructor for the library. free any resources.\r
77dcec12	82	\r
	83	@param ImageHandle The image handle of the process.\r
	84	@param SystemTable The EFI System Table pointer.\r
a405b86d	85	**/\r
	86	EFI_STATUS\r
	87	EFIAPI\r
	88	ShellLevel1CommandsLibDestructor (\r
	89	IN EFI_HANDLE ImageHandle,\r
	90	IN EFI_SYSTEM_TABLE *SystemTable\r
	91	)\r
	92	{\r
	93	if (gShellLevel1HiiHandle != NULL) {\r
	94	HiiRemovePackages(gShellLevel1HiiHandle);\r
	95	}\r
	96	return (EFI_SUCCESS);\r
	97	}\r
	98	\r
77dcec12	99	/**\r
	100	Test a node to see if meets the criterion.\r
	101	\r
	102	It functions so that count starts at 1 and it increases or decreases when it\r
	103	hits the specified tags. when it hits zero the location has been found.\r
	104	\r
	105	DecrementerTag and IncrementerTag are used to get around for/endfor and \r
	106	similar paired types where the entire middle should be ignored.\r
	107	\r
	108	If label is used it will be used instead of the count.\r
	109	\r
4ff7e37b ED	110	@param[in] Function The function to use to enumerate through the \r
	111	list. Normally GetNextNode or GetPreviousNode.\r
	112	@param[in] DecrementerTag The tag to decrement the count at.\r
	113	@param[in] IncrementerTag The tag to increment the count at.\r
	114	@param[in] Label A label to look for.\r
	115	@param[in, out] ScriptFile The pointer to the current script file structure.\r
	116	@param[in] MovePast TRUE makes function return 1 past the found \r
	117	location.\r
	118	@param[in] FindOnly TRUE to not change the ScriptFile.\r
	119	@param[in] CommandNode The pointer to the Node to test.\r
	120	@param[in, out] TargetCount The pointer to the current count.\r
77dcec12	121	**/\r
a405b86d	122	BOOLEAN\r
	123	EFIAPI\r
	124	TestNodeForMove (\r
	125	IN CONST LIST_MANIP_FUNC Function,\r
	126	IN CONST CHAR16 *DecrementerTag,\r
	127	IN CONST CHAR16 *IncrementerTag,\r
	128	IN CONST CHAR16 *Label OPTIONAL,\r
77dcec12	129	IN OUT SCRIPT_FILE *ScriptFile,\r
a405b86d	130	IN CONST BOOLEAN MovePast,\r
	131	IN CONST BOOLEAN FindOnly,\r
	132	IN CONST SCRIPT_COMMAND_LIST *CommandNode,\r
77dcec12	133	IN OUT UINTN *TargetCount\r
a405b86d	134	)\r
	135	{\r
	136	BOOLEAN Found;\r
	137	CHAR16 *CommandName;\r
	138	CHAR16 *CommandNameWalker;\r
	139	CHAR16 *TempLocation;\r
	140	\r
	141	Found = FALSE;\r
	142	\r
	143	//\r
	144	// get just the first part of the command line...\r
	145	//\r
	146	CommandName = NULL;\r
	147	CommandName = StrnCatGrow(&CommandName, NULL, CommandNode->Cl, 0);\r
	148	CommandNameWalker = CommandName;\r
	149	while(CommandNameWalker[0] == L' ') {\r
	150	CommandNameWalker++;\r
	151	}\r
	152	TempLocation = StrStr(CommandNameWalker, L" ");\r
	153	\r
	154	if (TempLocation != NULL) {\r
	155	*TempLocation = CHAR_NULL;\r
	156	}\r
	157	\r
	158	//\r
	159	// did we find a nested item ?\r
	160	//\r
	161	if (gUnicodeCollation->StriColl(\r
	162	gUnicodeCollation,\r
	163	(CHAR16*)CommandNameWalker,\r
	164	(CHAR16*)IncrementerTag) == 0) {\r
	165	(*TargetCount)++;\r
	166	} else if (gUnicodeCollation->StriColl(\r
	167	gUnicodeCollation,\r
	168	(CHAR16*)CommandNameWalker,\r
	169	(CHAR16*)DecrementerTag) == 0) {\r
	170	if (*TargetCount > 0) {\r
	171	(*TargetCount)--;\r
	172	}\r
	173	}\r
	174	\r
	175	//\r
	176	// did we find the matching one...\r
	177	//\r
	178	if (Label == NULL) {\r
	179	if (*TargetCount == 0) {\r
	180	Found = TRUE;\r
	181	if (!FindOnly) {\r
	182	if (MovePast) {\r
	183	ScriptFile->CurrentCommand = (SCRIPT_COMMAND_LIST )(Function)(&ScriptFile->CommandList, &CommandNode->Link);\r
	184	} else {\r
	185	ScriptFile->CurrentCommand = (SCRIPT_COMMAND_LIST *)CommandNode;\r
	186	}\r
	187	}\r
	188	}\r
	189	} else {\r
	190	if (gUnicodeCollation->StriColl(\r
	191	gUnicodeCollation,\r
	192	(CHAR16*)CommandNameWalker,\r
	193	(CHAR16*)Label) == 0\r
	194	&& (*TargetCount) == 0) {\r
	195	Found = TRUE;\r
	196	if (!FindOnly) {\r
	197	//\r
198	// we found the target label without loops\r
199	//\r
200	if (MovePast) {\r
201	ScriptFile->CurrentCommand = (SCRIPT_COMMAND_LIST )(Function)(&ScriptFile->CommandList, &CommandNode->Link);\r
202	} else {\r
203	ScriptFile->CurrentCommand = (SCRIPT_COMMAND_LIST *)CommandNode;\r
204	}\r
205	}\r
206	}\r
207	}\r
208	\r
209	//\r
210	// Free the memory for this loop...\r
211	//\r
212	FreePool(CommandName);\r
213	return (Found);\r
214	}\r
215	\r
77dcec12	216	/**\r
	217	Move the script pointer from 1 tag (line) to another.\r
	218	\r
	219	It functions so that count starts at 1 and it increases or decreases when it\r
	220	hits the specified tags. when it hits zero the location has been found.\r
	221	\r
	222	DecrementerTag and IncrementerTag are used to get around for/endfor and \r
	223	similar paired types where the entire middle should be ignored.\r
	224	\r
	225	If label is used it will be used instead of the count.\r
	226	\r
4ff7e37b ED	227	@param[in] Function The function to use to enumerate through the \r
	228	list. Normally GetNextNode or GetPreviousNode.\r
	229	@param[in] DecrementerTag The tag to decrement the count at.\r
	230	@param[in] IncrementerTag The tag to increment the count at.\r
	231	@param[in] Label A label to look for.\r
	232	@param[in, out] ScriptFile The pointer to the current script file structure.\r
	233	@param[in] MovePast TRUE makes function return 1 past the found \r
	234	location.\r
	235	@param[in] FindOnly TRUE to not change the ScriptFile.\r
	236	@param[in] WrapAroundScript TRUE to wrap end-to-begining or vise versa in \r
	237	searching.\r
77dcec12	238	**/\r
a405b86d	239	BOOLEAN\r
	240	EFIAPI\r
	241	MoveToTag (\r
	242	IN CONST LIST_MANIP_FUNC Function,\r
	243	IN CONST CHAR16 *DecrementerTag,\r
	244	IN CONST CHAR16 *IncrementerTag,\r
	245	IN CONST CHAR16 *Label OPTIONAL,\r
77dcec12	246	IN OUT SCRIPT_FILE *ScriptFile,\r
a405b86d	247	IN CONST BOOLEAN MovePast,\r
	248	IN CONST BOOLEAN FindOnly,\r
	249	IN CONST BOOLEAN WrapAroundScript\r
	250	)\r
	251	{\r
	252	SCRIPT_COMMAND_LIST *CommandNode;\r
	253	BOOLEAN Found;\r
	254	UINTN TargetCount;\r
	255	\r
	256	if (Label == NULL) {\r
	257	TargetCount = 1;\r
	258	} else {\r
	259	TargetCount = 0;\r
	260	}\r
	261	\r
	262	if (ScriptFile == NULL) {\r
	263	return FALSE;\r
	264	}\r
	265	\r
	266	for (CommandNode = (SCRIPT_COMMAND_LIST )(Function)(&ScriptFile->CommandList, &ScriptFile->CurrentCommand->Link), Found = FALSE\r
	267	; !IsNull(&ScriptFile->CommandList, &CommandNode->Link)&& !Found\r
	268	; CommandNode = (SCRIPT_COMMAND_LIST )(Function)(&ScriptFile->CommandList, &CommandNode->Link)\r
	269	){\r
	270	Found = TestNodeForMove(\r
	271	Function,\r
	272	DecrementerTag,\r
	273	IncrementerTag,\r
	274	Label,\r
	275	ScriptFile,\r
	276	MovePast,\r
	277	FindOnly,\r
	278	CommandNode,\r
	279	&TargetCount);\r
	280	}\r
	281	\r
	282	if (WrapAroundScript && !Found) {\r
	283	for (CommandNode = (SCRIPT_COMMAND_LIST *)GetFirstNode(&ScriptFile->CommandList), Found = FALSE\r
	284	; CommandNode != ScriptFile->CurrentCommand && !Found\r
	285	; CommandNode = (SCRIPT_COMMAND_LIST )(Function)(&ScriptFile->CommandList, &CommandNode->Link)\r
	286	){\r
	287	Found = TestNodeForMove(\r
	288	Function,\r
	289	DecrementerTag,\r
	290	IncrementerTag,\r
	291	Label,\r
	292	ScriptFile,\r
	293	MovePast,\r
	294	FindOnly,\r
	295	CommandNode,\r
	296	&TargetCount);\r
	297	}\r
	298	}\r
	299	return (Found);\r
	300	}\r
	301	\r