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harbour-core/harbour/source/rtl/errorsys.prg
1999-08-17 05:52:08 +00:00

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3.4 KiB
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/*
* $Id$
Copyright(C) 1999 by Antonio Linares.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public
License along with this program; if not, write to:
The Free Software Foundation, Inc.,
675 Mass Ave, Cambridge, MA 02139, USA.
You can contact me at: alinares@fivetech.com
*/
// Standard Harbour ErrorSys system
#include "error.ch"
#define ISCHAR(var) (ValType(var) == "C")
#define ISNUM(var) (ValType(var) == "N")
//----------------------------------------------------------------------------//
init procedure ClipInit
// public getlist := {} TODO!
ErrorSys()
return
//----------------------------------------------------------------------------//
static function DefError( oError )
LOCAL cMessage
LOCAL aOptions
LOCAL nChoice
LOCAL cInfo := ""
LOCAL n := 2
cMessage := ErrorMessage(oError)
// Build buttons
aOptions := {}
// aAdd(aOptions, "Break" )
aAdd(aOptions, "Quit" )
IF oError:canRetry
aAdd(aOptions, "Retry")
ENDIF
IF oError:canDefault
aAdd(aOptions, "Default")
ENDIF
// Show alert box
nChoice := 0
DO WHILE nChoice == 0
IF Empty( oError:osCode )
nChoice := Alert( cMessage, aOptions )
ELSE
nChoice := Alert( cMessage + ";(DOS Error " + LTrim(Str(oError:osCode)) + ")", aOptions)
ENDIF
ENDDO
DO CASE
CASE aOptions[ nChoice ] == "Break"
// Break(oError)
CASE aOptions[ nChoice ] == "Retry"
RETURN .T.
CASE aOptions[ nChoice ] == "Default"
RETURN .F.
ENDCASE
// "Quit" selected
IF !Empty(oError:osCode)
cMessage += " (DOS Error " + LTrim(Str(oError:osCode)) + ")"
ENDIF
QOut( cMessage )
DO WHILE ! Empty( ProcName( n ) )
QOut("Called from " + ProcName( n ) + ;
"(" + AllTrim( Str( ProcLine( n++ ) ) ) + ")")
ENDDO
QUIT
RETURN .F.
//----------------------------------------------------------------------------//
procedure ErrorSys
ErrorBlock( { | oError | DefError( oError ) } )
return
// [vszel]
STATIC FUNCTION ErrorMessage(oError)
LOCAL cMessage
// start error message
cMessage := iif( oError:severity > ES_WARNING, "Error", "Warning" ) + " "
// add subsystem name if available
IF ISCHAR(oError:subsystem)
cMessage += oError:subsystem()
ELSE
cMessage += "???"
ENDIF
// add subsystem's error code if available
IF ISNUM(oError:subCode)
cMessage += "/" + LTrim(Str(oError:subCode))
ELSE
cMessage += "/???"
ENDIF
// add error description if available
IF ISCHAR(oError:description)
cMessage += " " + oError:description
ENDIF
// add either filename or operation
DO CASE
CASE !Empty(oError:filename)
cMessage += ": " + oError:filename
CASE !Empty(oError:operation)
cMessage += ": " + oError:operation
ENDCASE
RETURN cMessage
//----------------------------------------------------------------------------//