* Root Cause of Parse Failure With Redirected Input
@ 2016-12-02 2:07 Tim Lewis
2017-11-06 23:09 ` Riding the UEFI shell / enabling the platform for C developers joaquin_conobolillo
2017-11-07 7:51 ` joaquin_conobolillo
0 siblings, 2 replies; 3+ messages in thread
From: Tim Lewis @ 2016-12-02 2:07 UTC (permalink / raw)
To: edk2-devel@lists.01.org
if (StrStr (TempLine, L"ShellCommand,") == TempLine) {
LoopVariable++;
}
This line fails because, with redirected input, the file has the UCS-2 byte order mark, so the string "ShellCommand," is not at the beginning of the line. With the file, the byte order mark is not present.
Why?
if (StreamingUnicode) {
TempLine = ParseReturnStdInLine (FileHandle);
} else {
TempLine = ShellFileHandleReturnLine (FileHandle, &Ascii);
}
The Shell library function ShellFileHandleReturnLine will strip off the byte order mark. But the ParseReturnStdInLine does not. So the first character on the line is not 'S', it is the byte order mark.
Tim
^ permalink raw reply [flat|nested] 3+ messages in thread* Riding the UEFI shell / enabling the platform for C developers
2016-12-02 2:07 Root Cause of Parse Failure With Redirected Input Tim Lewis
@ 2017-11-06 23:09 ` joaquin_conobolillo
2017-11-07 7:51 ` joaquin_conobolillo
1 sibling, 0 replies; 3+ messages in thread
From: joaquin_conobolillo @ 2017-11-06 23:09 UTC (permalink / raw)
To: Tim Lewis
Cc: edk2-devel-01, Gao, Liming, michael.a.rothman@intel.com,
vincent.zimmer@intel.com
Hi Tim,
With the disappearance of MSDOS as a simple, single threaded, unprotected operating system with full hardware access to user programs on upcoming personal computer models the UEFI shell was intended to be the successor of MSDOS.
please try
https://github.com/JoaquinCono/VisualUEFIShell
for UEFI Shell Applications.
Regards,
JC
Sent from Surface
From: Joaquin Cono Bolillo
Sent: Friday, December 2, 2016 8:55 AM
To: Tim Lewis
Hi Tim,
this is because StdLibC is not implemented carefully.
There will be a C Development Environment CdePkg on Github
beginning next year.
JC
Gesendet von Mail für Windows 10
Von: Tim Lewis
Gesendet: Friday, December 2, 2016 03:08 AM
An: edk2-devel@lists.01.org
Betreff: [edk2] Root Cause of Parse Failure With Redirected Input
if (StrStr (TempLine, L"ShellCommand,") == TempLine) {
LoopVariable++;
}
This line fails because, with redirected input, the file has the UCS-2 byte order mark, so the string "ShellCommand," is not at the beginning of the line. With the file, the byte order mark is not present.
Why?
if (StreamingUnicode) {
TempLine = ParseReturnStdInLine (FileHandle);
} else {
TempLine = ShellFileHandleReturnLine (FileHandle, &Ascii);
}
The Shell library function ShellFileHandleReturnLine will strip off the byte order mark. But the ParseReturnStdInLine does not. So the first character on the line is not 'S', it is the byte order mark.
Tim
_______________________________________________
edk2-devel mailing list
edk2-devel@lists.01.org
https://lists.01.org/mailman/listinfo/edk2-devel
^ permalink raw reply [flat|nested] 3+ messages in thread* Riding the UEFI shell / enabling the platform for C developers
2016-12-02 2:07 Root Cause of Parse Failure With Redirected Input Tim Lewis
2017-11-06 23:09 ` Riding the UEFI shell / enabling the platform for C developers joaquin_conobolillo
@ 2017-11-07 7:51 ` joaquin_conobolillo
1 sibling, 0 replies; 3+ messages in thread
From: joaquin_conobolillo @ 2017-11-07 7:51 UTC (permalink / raw)
To: Tim Lewis
Cc: edk2-devel-01, Gao, Liming, michael.a.rothman@intel.com,
vincent.zimmer@intel.com
Hi Tim,
With the disappearance of MSDOS as a simple, single threaded, unprotected operating system with full hardware access to user programs on upcoming personal computer models the UEFI shell was intended to be the successor of MSDOS.
please try
https://github.com/JoaquinCono/VisualUEFIShell
for UEFI Shell Applications.
Regards,
JC
Sent from Surface
From: Joaquin Cono Bolillo
Sent: Friday, December 2, 2016 8:55 AM
To: Tim Lewis
Hi Tim,
this is because StdLibC is not implemented carefully.
There will be a C Development Environment CdePkg on Github
beginning next year.
JC
Gesendet von Mail für Windows 10
Von: Tim Lewis
Gesendet: Friday, December 2, 2016 03:08 AM
An: edk2-devel@lists.01.org
Betreff: [edk2] Root Cause of Parse Failure With Redirected Input
if (StrStr (TempLine, L"ShellCommand,") == TempLine) {
LoopVariable++;
}
This line fails because, with redirected input, the file has the UCS-2 byte order mark, so the string "ShellCommand," is not at the beginning of the line. With the file, the byte order mark is not present.
Why?
if (StreamingUnicode) {
TempLine = ParseReturnStdInLine (FileHandle);
} else {
TempLine = ShellFileHandleReturnLine (FileHandle, &Ascii);
}
The Shell library function ShellFileHandleReturnLine will strip off the byte order mark. But the ParseReturnStdInLine does not. So the first character on the line is not 'S', it is the byte order mark.
Tim
_______________________________________________
edk2-devel mailing list
edk2-devel@lists.01.org
https://lists.01.org/mailman/listinfo/edk2-devel
^ permalink raw reply [flat|nested] 3+ messages in thread
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