Re: [edk2-devel] [PATCH] MdeModulePkg/Library: Add HiiGetStringEx to UefiHiiLib for EDK2 Redfish

["Abner Chang" <abner.chang@hpe.com>]

Done and v2 sent.
Thanks

> -----Original Message-----
> From: devel@edk2.groups.io [mailto:devel@edk2.groups.io] On Behalf Of
> gaoliming
> Sent: Tuesday, January 26, 2021 9:51 AM
> To: devel@edk2.groups.io; Chang, Abner (HPS SW/FW Technologist)
> <abner.chang@hpe.com>
> Cc: 'Dandan Bi' <dandan.bi@intel.com>; 'Eric Dong' <eric.dong@intel.com>;
> Wang, Nickle (HPS SW) <nickle.wang@hpe.com>; 'Michael D Kinney'
> <michael.d.kinney@intel.com>
> Subject: 回复: [edk2-devel] [PATCH] MdeModulePkg/Library: Add
> HiiGetStringEx to UefiHiiLib for EDK2 Redfish
> 
> Abner:
>  I agree this request is reasonable. New API name HiiGetStringEx is OK to me.
> I have some comments on the detail of this API.
> 
> 1. Please describe the behavior in function header when TryBestLanguage is
> FASLE.
> 2. When TryBestLanguage is FALSE, the input Language can't be NULL. If
> Language is NULL, the function should return the invalid parameter.
> 
> Thanks
> Liming
> > -----邮件原件-----
> > 发件人: bounce+27952+70661+4905953+8761045@groups.io
> > <bounce+27952+70661+4905953+8761045@groups.io> 代表 Abner Chang
> > 发送时间: 2021年1月22日 11:15
> > 收件人: devel@edk2.groups.io
> > 抄送: Dandan Bi <dandan.bi@intel.com>; Eric Dong <eric.dong@intel.com>;
> > Nickle Wang <nickle.wang@hpe.com>
> > 主题: [edk2-devel] [PATCH] MdeModulePkg/Library: Add HiiGetStringEx to
> > UefiHiiLib for EDK2 Redfish
> >
> > Add HiiGetStringEx and leveraged by HiiGetString function to support
> > getting string with the best language in optionally. This avoids the
> > string in x-uefi language is misled to the language defined by
> > "PlatformLang" or the "Supported Languages". This change is introduced
> > to support x-uefi keyword language for configuring BIOS setting.
> >
> > Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com>
> > Signed-off-by: Siyuan Fu <siyuan.fu@intel.com>
> > Signed-off-by: Fan Wang <fan.wang@intel.com>
> > Signed-off-by: Abner Chang <abner.chang@hpe.com>
> > Cc: Dandan Bi <dandan.bi@intel.com>
> > Cc: Eric Dong <eric.dong@intel.com>
> > Cc: Nickle Wang <nickle.wang@hpe.com>
> > ---
> >  MdeModulePkg/Include/Library/HiiLib.h       | 41 +++++++++++-
> >  MdeModulePkg/Library/UefiHiiLib/HiiString.c | 73
> > ++++++++++++++++-----
> >  2 files changed, 96 insertions(+), 18 deletions(-)
> >
> > diff --git a/MdeModulePkg/Include/Library/HiiLib.h
> > b/MdeModulePkg/Include/Library/HiiLib.h
> > index c475cb74a1..66c654dcd3 100644
> > --- a/MdeModulePkg/Include/Library/HiiLib.h
> > +++ b/MdeModulePkg/Include/Library/HiiLib.h
> > @@ -1,7 +1,7 @@
> >  /** @file
> >    Public include file for the HII Library
> >
> > -Copyright (c) 2007 - 2018, Intel Corporation. All rights
> > reserved.<BR>
> > +Copyright (c) 2007 - 2021, Intel Corporation. All rights
> > +reserved.<BR>
> >  SPDX-License-Identifier: BSD-2-Clause-Patent
> >
> >  **/
> > @@ -152,8 +152,43 @@ HiiGetString (
> >    IN EFI_HII_HANDLE  HiiHandle,
> >    IN EFI_STRING_ID   StringId,
> >    IN CONST CHAR8     *Language  OPTIONAL
> > -  )
> > -;
> > +  );
> > +
> > +/**
> > +  Retrieves a string from a string package in a specific language.
> > +If
> the
> > language
> > +  is not specified, then a string from a string package in the
> > + current
> platform
> > +  language is retrieved.  If the string can not be retrieved using
> > + the
> > specified
> > +  language or the current platform language, then the string is
> > + retrieved
> > from
> > +  the string package in the first language the string package supports.
> The
> > +  returned string is allocated using AllocatePool().  The caller is
> responsible
> > +  for freeing the allocated buffer using FreePool().
> > +
> > +  If HiiHandle is NULL, then ASSERT().
> > +  If StringId is 0, then ASSET.
> > +
> > +  @param[in]  HiiHandle         A handle that was previously
> > registered in the HII Database.
> > +  @param[in]  StringId          The identifier of the string to retrieved
> > from the string
> > +                                package associated with HiiHandle.
> > +  @param[in]  Language          The language of the string to retrieve.
> > If this parameter
> > +                                is NULL, then the current platform
> > language is used.  The
> > +                                format of Language must follow the
> > language format assumed
> > +                                the HII Database.
> > +  @param[in]  TryBestLanguage   If TRUE, try to get the best matching
> > language from all
> > +                                supported languages.
> > +
> > +
> > +  @retval NULL   The string specified by StringId is not present in the
> > string package.
> > +  @retval Other  The string was returned.
> > +
> > +**/
> > +EFI_STRING
> > +EFIAPI
> > +HiiGetStringEx (
> > +  IN EFI_HII_HANDLE  HiiHandle,
> > +  IN EFI_STRING_ID   StringId,
> > +  IN CONST CHAR8     *Language  OPTIONAL,
> > +  IN BOOLEAN         TryBestLanguage
> > +  );
> >
> >  /**
> >    Retrieves a string from a string package named by GUID, in the
> specified
> > language.
> > diff --git a/MdeModulePkg/Library/UefiHiiLib/HiiString.c
> > b/MdeModulePkg/Library/UefiHiiLib/HiiString.c
> > index 95229f8a8c..f3c52ace56 100644
> > --- a/MdeModulePkg/Library/UefiHiiLib/HiiString.c
> > +++ b/MdeModulePkg/Library/UefiHiiLib/HiiString.c
> > @@ -1,7 +1,7 @@
> >  /** @file
> >    HII Library implementation that uses DXE protocols and services.
> >
> > -  Copyright (c) 2006 - 2018, Intel Corporation. All rights
> > reserved.<BR>
> > +  Copyright (c) 2006 - 2021, Intel Corporation. All rights
> > + reserved.<BR>
> >    SPDX-License-Identifier: BSD-2-Clause-Patent
> >
> >  **/
> > @@ -220,6 +220,44 @@ HiiGetString (
> >    IN EFI_STRING_ID   StringId,
> >    IN CONST CHAR8     *Language  OPTIONAL
> >    )
> > +{
> > +  return HiiGetStringEx (HiiHandle, StringId, Language, TRUE); }
> > +
> > +/**
> > +  Retrieves a string from a string package in a specific language.
> > +If
> the
> > language
> > +  is not specified, then a string from a string package in the
> > + current
> platform
> > +  language is retrieved.  If the string can not be retrieved using
> > + the
> > specified
> > +  language or the current platform language, then the string is
> > + retrieved
> > from
> > +  the string package in the first language the string package supports.
> The
> > +  returned string is allocated using AllocatePool().  The caller is
> responsible
> > +  for freeing the allocated buffer using FreePool().
> > +
> > +  If HiiHandle is NULL, then ASSERT().
> > +  If StringId is 0, then ASSET.
> > +
> > +  @param[in]  HiiHandle         A handle that was previously
> > registered in the HII Database.
> > +  @param[in]  StringId          The identifier of the string to retrieved
> > from the string
> > +                                package associated with HiiHandle.
> > +  @param[in]  Language          The language of the string to retrieve.
> > If this parameter
> > +                                is NULL, then the current platform
> > language is used.  The
> > +                                format of Language must follow the
> > language format assumed
> > +                                the HII Database.
> > +  @param[in]  TryBestLanguage   If TRUE, try to get the best matching
> > language from all
> > +                                supported languages.
> > +
> > +  @retval NULL   The string specified by StringId is not present in the
> > string package.
> > +  @retval Other  The string was returned.
> > +
> > +**/
> > +EFI_STRING
> > +EFIAPI
> > +HiiGetStringEx (
> > +  IN EFI_HII_HANDLE  HiiHandle,
> > +  IN EFI_STRING_ID   StringId,
> > +  IN CONST CHAR8     *Language  OPTIONAL,
> > +  IN BOOLEAN         TryBestLanguage
> > +  )
> >  {
> >    EFI_STATUS  Status;
> >    UINTN       StringSize;
> > @@ -261,21 +299,26 @@ HiiGetString (
> >      Language = "";
> >    }
> >
> > -  //
> > -  // Get the best matching language from SupportedLanguages
> > -  //
> > -  BestLanguage = GetBestLanguage (
> > -                   SupportedLanguages,
> > -                   FALSE,
> > // RFC 4646 mode
> > -                   Language,
> > // Highest priority
> > -                   PlatformLanguage != NULL ? PlatformLanguage : "",
> > // Next highest priority
> > -                   SupportedLanguages,
> > // Lowest priority
> > -                   NULL
> > -                   );
> > -  if (BestLanguage == NULL) {
> > -    goto Error;
> > +  if (TryBestLanguage) {
> > +    //
> > +    // Get the best matching language from SupportedLanguages
> > +    //
> > +    BestLanguage = GetBestLanguage (
> > +                     SupportedLanguages,
> > +                     FALSE,
> > // RFC 4646 mode
> > +                     Language,
> > // Highest priority
> > +                     PlatformLanguage != NULL ? PlatformLanguage :
> > "",  // Next highest priority
> > +                     SupportedLanguages,
> > // Lowest priority
> > +                     NULL
> > +                     );
> > +    if (BestLanguage == NULL) {
> > +      goto Error;
> > +    }
> > +  } else {
> > +    BestLanguage = (CHAR8 *) Language;
> >    }
> >
> > +
> >    //
> >    // Retrieve the size of the string in the string package for the
> > BestLanguage
> >    //
> > @@ -337,7 +380,7 @@ Error:
> >    if (PlatformLanguage != NULL) {
> >      FreePool (PlatformLanguage);
> >    }
> > -  if (BestLanguage != NULL) {
> > +  if (TryBestLanguage && BestLanguage != NULL) {
> >      FreePool (BestLanguage);
> >    }
> >
> > --
> > 2.17.1
> >
> >
> >
> >
> >
> 
> 
> 
> 
> 
> 
>