(FILECREATED "13-Jan-86 21:01:15" {QV}<NOTECARDS>1.3K>FGHPATCH012.;1 7334
changes to: (VARS FGHPATCH012COMS)
(FNS NC.OpenDatabaseFile))
(* Copyright (c) 1986 by Xerox Corporation. All rights reserved.)
(PRETTYCOMPRINT FGHPATCH012COMS)
(RPAQQ FGHPATCH012COMS ((* * From NCDATABASE bug fix to OpenDatabaseFile)
(FNS NC.OpenDatabaseFile)))
(* * From NCDATABASE bug fix to OpenDatabaseFile)
(DEFINEQ
(NC.OpenDatabaseFile
(LAMBDA (NoteFileOrFileName Access Don'tCacheTypesAndTitlesFlg QuietFlg Don'tCreateFlg
Convertw/oConfirmFlg Don'tCreateArrayFlg Don'tTruncateFlg
Don'tCreateInterfaceFlg Don'tGetSpecialCardsFlg)
(* fgh: "13-Jan-86 20:57")
(* * Open an already existing NoteFile and return a NoteFile object)
(* * rht 8/7/84: For nonexistent files, asks user whether to create unless Don'tCreateFlg is non-nil.)
(* * rht 1/9/85: Checks NC.UncachingNotCompleted global var. If non-nil, then previous notefile died unnaturally,
so we first clear junk off the IDs.)
(* * rht 8/6/85: Added Don'tTruncateFlg, which, if on, prevents the check for truncation.)
(* * fgh 10/16/85 Updated to use new cacheing scheme.)
(* * kirk 10/29/85: Now does cacheing of types and titles as background process.)
(* * fkr 11/8/85: Converted from Streams to NoteFile object.)
(* * kirk 30Nov85 Added a check for correct version number.)
(* * rht 12/6/85: Moved Kirk's above patch to NC.CheckForNeededConversion and modified somewhat.
Added check for plausible header.)
(* * rht 1/8/86: Now reuses old notefile object if there is one for this filename.)
(* * fgh 1/13/86: Fixed bug with returning File Name with embedded call to CreateDatabaseFile.
Now just calls OpenDatabaseFile recursively using result of CreateDatabaseFile.)
(PROG (NoteFile FileName Name Stream NewStream Card CardTotal)
(OR Access (SETQ Access (QUOTE BOTH)))
(SETQ FileName (COND
((type? NoteFile NoteFileOrFileName)
(SETQ NoteFile NoteFileOrFileName)
(fetch (NoteFile FullFileName) of NoteFileOrFileName))
(T NoteFileOrFileName)))
(if (NOT (OR FileName (SETQ FileName (NC.DatabaseFileName
"Name of NoteFile to open:"
" -- " T))))
then (RETURN NIL))
(if (OPENP FileName)
then (NC.PrintMsg NIL T FileName " is an already open file." (CHARACTER 13))
(RETURN NIL))
(if (NOT (SETQ Name (INFILEP FileName)))
then (COND
(Don'tCreateFlg (NC.PrintMsg NIL T "Couldn't find NoteFile " FileName "."
(CHARACTER 13))
(RETURN NIL))
((NC.YesP (NC.AskUser (CONCAT "Unable to find NoteFile " FileName "."
(CHARACTER 13)
"Want to create new NoteFile by that name? ")
" -- " "Yes" T NIL T NIL T))
(SETQ NoteFile (NC.CreateDatabaseFile FileName NIL "Opening NoteFile"
T))
(if (NOT (type? NoteFile NoteFile))
then (NC.PrintMsg NIL T "Unable to create Notefile " FileName "."
(CHARACTER 13))
(RETURN NIL)
else (RETURN (NC.OpenDatabaseFile NoteFile Access
Don'tCacheTypesAndTitlesFlg
QuietFlg Don'tCreateFlg
Convertw/oConfirmFlg
Don'tCreateArrayFlg
Don'tTruncateFlg
Don'tCreateInterfaceFlg
Don'tGetSpecialCardsFlg))))
(T (RETURN NIL))))
(OR QuietFlg (NC.PrintMsg NIL T "Opening ... " (CHARACTER 13)))
(if (NULL (SETQ Stream (CAR (ERSETQ (OPENSTREAM Name Access (QUOTE OLD)
(QUOTE ((TYPE BINARY))))))))
then (NC.PrintMsg NIL T "Couldn't open " FileName "." (CHARACTER 13))
(RETURN NIL)) (* Use existing notefile object if there is one for
this file name.)
(OR (type? NoteFile NoteFile)
(SETQ NoteFile (OR (NC.NoteFileFromFileName FileName)
(create NoteFile))))
(replace (NoteFile Stream) of NoteFile with Stream)
(replace (NoteFile FullFileName) of NoteFile with (FULLNAME Stream))
(NC.SetMonitor NoteFile (CREATE.MONITORLOCK (MKATOM (CONCAT Name ":LOCK"))))
(NC.GetNoteFileHeader NoteFile) (* See if notefile is out of date.
If so, convert to current version.)
(if (NOT (NC.CheckForNeededConversion NoteFile Convertw/oConfirmFlg))
then (CLOSEF (fetch (NoteFile Stream) of NoteFile))
(NC.PrintMsg NIL T "Open cancelled.")
(RETURN NIL)) (* See if notefile header seems reasonable.
If not, bail out.)
(if (NOT (NC.PlausibleNoteFileHeaderP NoteFile))
then (NC.PrintMsg NIL NIL
"Notefile has bad header. Please see a NoteCards wizard."
(CHARACTER 13)
"Open cancelled.")
(RETURN NIL))
(COND
((NULL Don'tTruncateFlg) (* Can either bail out entirely or run inspector and
then bail out.)
(SELECTQ (SETQ NewStream (NC.CheckForNeededTruncation NoteFile Access))
(ABORT (CLOSEF Stream)
(NC.PrintMsg NIL T "Open cancelled.")
(RETURN NIL))
(ABORTANDINSPECT (CLOSEF Stream)
(NC.ScavengerPhase1 Name)
(RETURN NIL))
NIL)
(AND (STREAMP NewStream)
(replace (NoteFile Stream) of NoteFile with NewStream))))
(OR Don'tCreateArrayFlg (NC.BuildHashArray NoteFile))
(* * Make sure the NF can't be closed by CLOSEALL)
(WHENCLOSE (fetch (NoteFile Stream) of NoteFile)
(QUOTE CLOSEALL)
(QUOTE NO))
(COND
((NULL Don'tCacheTypesAndTitlesFlg) (* Cache all of the titles in this database)
(replace (NoteFile CachingProcess) of NoteFile
with (ADD.PROCESS (LIST (FUNCTION NC.CacheTypesAndTitles)
NoteFile)))))
(* Stash the special cards into the NoteFile object.)
(OR Don'tGetSpecialCardsFlg (NC.GetSpecialCards NoteFile))
(* Stash the notefile in the global notefiles hash
array.)
(NC.StoreNoteFile NoteFile)
(COND
((NULL Don'tCreateInterfaceFlg) (* Make an interface menu for this notefile.)
(NC.SetUpNoteFileInterface NoteFile)))
(AND (NULL QuietFlg)
(NC.PrintMsg NIL T "Opened " (FULLNAME Stream)
(CHARACTER 13)))
(SETQ NC.LastNoteFileOpened NoteFile)
(RETURN NoteFile))))
)
(PUTPROPS FGHPATCH012 COPYRIGHT ("Xerox Corporation" 1986))
(DECLARE: DONTCOPY
(FILEMAP (NIL (428 7252 (NC.OpenDatabaseFile 438 . 7250)))))
STOP