diff options
| -rw-r--r-- | ShellPkg/Include/Library/ShellLib.h | 19 | ||||
| -rw-r--r-- | ShellPkg/Library/UefiShellLib/UefiShellLib.c | 60 |
2 files changed, 79 insertions, 0 deletions
diff --git a/ShellPkg/Include/Library/ShellLib.h b/ShellPkg/Include/Library/ShellLib.h index a1b534bd3e..eefa030ad1 100644 --- a/ShellPkg/Include/Library/ShellLib.h +++ b/ShellPkg/Include/Library/ShellLib.h @@ -1357,4 +1357,23 @@ ShellDeleteFileByName( IN CONST CHAR16 *FileName
);
+/**
+ Function to print help file / man page content in the spec from the UEFI Shell protocol GetHelpText function.
+
+ @param[in] CommandToGetHelpOn Pointer to a string containing the command name of help file to be printed.
+ @param[in] SectionToGetHelpOn Pointer to the section specifier(s).
+ @param[in] PrintCommandText If TRUE, prints the command followed by the help content, otherwise prints
+ the help content only.
+ @retval EFI_DEVICE_ERROR The help data format was incorrect.
+ @retval EFI_NOT_FOUND The help data could not be found.
+ @retval EFI_SUCCESS The operation was successful.
+**/
+EFI_STATUS
+EFIAPI
+ShellPrintHelp (
+ IN CONST CHAR16 *CommandToGetHelpOn,
+ IN CONST CHAR16 *SectionToGetHelpOn,
+ IN BOOLEAN PrintCommandText
+ );
+
#endif // __SHELL_LIB__
diff --git a/ShellPkg/Library/UefiShellLib/UefiShellLib.c b/ShellPkg/Library/UefiShellLib/UefiShellLib.c index 4c09069f5a..6b985ed64e 100644 --- a/ShellPkg/Library/UefiShellLib/UefiShellLib.c +++ b/ShellPkg/Library/UefiShellLib/UefiShellLib.c @@ -4061,6 +4061,66 @@ ShellFileHandleReadLine( }
/**
+ Function to print help file / man page content in the spec from the UEFI Shell protocol GetHelpText function.
+
+ @param[in] CommandToGetHelpOn Pointer to a string containing the command name of help file to be printed.
+ @param[in] SectionToGetHelpOn Pointer to the section specifier(s).
+ @param[in] PrintCommandText If TRUE, prints the command followed by the help content, otherwise prints
+ the help content only.
+ @retval EFI_DEVICE_ERROR The help data format was incorrect.
+ @retval EFI_NOT_FOUND The help data could not be found.
+ @retval EFI_SUCCESS The operation was successful.
+**/
+EFI_STATUS
+EFIAPI
+ShellPrintHelp (
+ IN CONST CHAR16 *CommandToGetHelpOn,
+ IN CONST CHAR16 *SectionToGetHelpOn,
+ IN BOOLEAN PrintCommandText
+ )
+{
+ EFI_STATUS Status;
+ CHAR16 *OutText;
+
+ OutText = NULL;
+
+ //
+ // Get the string to print based
+ //
+ Status = gEfiShellProtocol->GetHelpText (CommandToGetHelpOn, SectionToGetHelpOn, &OutText);
+
+ //
+ // make sure we got a valid string
+ //
+ if (EFI_ERROR(Status)){
+ return Status;
+ }
+ if (OutText == NULL || StrLen(OutText) == 0) {
+ return EFI_NOT_FOUND;
+ }
+
+ //
+ // Chop off trailing stuff we dont need
+ //
+ while (OutText[StrLen(OutText)-1] == L'\r' || OutText[StrLen(OutText)-1] == L'\n' || OutText[StrLen(OutText)-1] == L' ') {
+ OutText[StrLen(OutText)-1] = CHAR_NULL;
+ }
+
+ //
+ // Print this out to the console
+ //
+ if (PrintCommandText) {
+ ShellPrintEx(-1, -1, L"%H%-14s%N- %s\r\n", CommandToGetHelpOn, OutText);
+ } else {
+ ShellPrintEx(-1, -1, L"%N%s\r\n", OutText);
+ }
+
+ SHELL_FREE_NON_NULL(OutText);
+
+ return EFI_SUCCESS;
+}
+
+/**
Function to delete a file by name
@param[in] FileName Pointer to file name to delete.
|