file: GFTypeExternalsImpl.mesa
Last Edited by: Pavel, October 6, 1984 6:15:53 pm PDT
DIRECTORY
GFTypePrivate,
PascalBasic,
PascalWizardFiles,
FS,
IO,
Rope;
GFTypeExternalsImpl: PROGRAM
IMPORTS PascalBasic, PascalWizardFiles, FS, IO, Rope
EXPORTS GFTypePrivate
= BEGIN OPEN PascalBasic, PascalWizardFiles, GFTypePrivate;
TtyReset: PUBLIC PROC [F: PascalTextFilePtr] =
BEGIN
PascalOpenTextFileTTYInput[F];
END;
TtyRewrite: PUBLIC PROC [F: PascalTextFilePtr] =
BEGIN
PascalOpenTextFileTTYOutput[F];
END;
ByteFileReset: PUBLIC PROC [F: LONG POINTER TO ByteFile, Ext: Alfa] =
BEGIN
inStream: IO.STREAM;
so: FS.StreamOptions ← FS.defaultStreamOptions;
so[tiogaRead] ← FALSE;
inStream ← FS.StreamOpen[fileName: Rope.Cat[FileNameRoot[], ".", RopeFromAlfa[Ext]], streamOptions: so];
PascalOpenFileWithStream[@(F^.baseFile), inStream];
PascalRESET[file: @(F^.baseFile), length: 1, element: @(F^.element)];
END;
FileReset: PROC [F: PascalTextFilePtr, Ext: Alfa] =
BEGIN
inStream: IO.STREAM;
inStream ← FS.StreamOpen[Rope.Cat[FileNameRoot[], ".", RopeFromAlfa[Ext]]];
PascalOpenTextFileWithStream[F, inStream];
PascalTextRESET[F];
END;
FileRewrite: PUBLIC PROC [F: PascalTextFilePtr, Ext: Alfa] =
BEGIN
outStream: IO.STREAM;
outStream ← FS.StreamOpen[Rope.Cat[FileNameRoot[], ".", RopeFromAlfa[Ext]], $create];
PascalOpenTextFileWithStream[F, outStream];
PascalTextREWRITE[F];
END;
FileClose: PUBLIC PROC [F: PascalTextFilePtr] =
BEGIN
PascalCloseTextFile[F];
END;
ByteFileClose: PUBLIC PROC [F: LONG POINTER TO ByteFile] =
BEGIN
PascalCloseFile[@(F^.baseFile)];
END;
fileNameRootBreak: PRIVATE IO.BreakProc = CHECKED
BEGIN
RETURN[SELECT char FROM
IN ['0..'9], IN ['A..'Z], IN ['a..'z], '-, '+, '# => other,
ENDCASE => sepr];
END;
FileNameRoot: PROC RETURNS [ROPE] =
BEGIN
RETURN[IO.RIS[commandLineTail].GetTokenRope[breakProc: fileNameRootBreak].token];
END;
RopeFromAlfa: PROC [a: Alfa] RETURNS [r: ROPE] =
BEGIN
r ← NIL;
FOR i:AlfaIndex IN AlfaIndex DO
IF a[i] = ' THEN EXIT;
r ← Rope.Concat[r, Rope.FromChar[a[i]]];
ENDLOOP;
END;
END.