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- {
- $Id: text.inc,v 1.21 1998/08/17 22:42:17 michael Exp $
- This file is part of the Free Pascal Run time library.
- Copyright (c) 1993,97 by the Free Pascal development team
-
- See the file COPYING.FPC, included in this distribution,
- for details about the copyright.
-
- 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.
-
- **********************************************************************}
-
- {
- Possible Defines:
-
- EXTENDED_EOF Use extended EOF checking for textfile, necessary for
- Pipes and Sockets under Linux
- EOF_CTRLZ Is Ctrl-Z (#26) a EOF mark for textfiles
- SHORT_LINEBREAK Use short Linebreaks #10 instead of #10#13
-
- Both EXTENDED_EOF and SHORT_LINEBREAK are defined in the Linux system
- unit (syslinux.pp)
- }
-
- {****************************************************************************
- subroutines For TextFile handling
- ****************************************************************************}
-
-
- Procedure FileCloseFunc(Var t:TextRec);
- Begin
- Do_Close(t.Handle);
- t.Handle:=UnusedHandle;
- End;
-
-
- Procedure FileReadFunc(var t:TextRec);
- Begin
- t.BufEnd:=Do_Read(t.Handle,Longint(t.Bufptr),t.BufSize);
- t.BufPos:=0;
- End;
-
-
- Procedure FileWriteFunc(var t:TextRec);
- Begin
- Do_Write(t.Handle,Longint(t.Bufptr),t.BufPos);
- t.BufPos:=0;
- End;
-
-
-
- Procedure FileOpenFunc(var t:TextRec);
- var
- Flags : Longint;
- Begin
- Case t.mode Of
- fmInput : Flags:=$1000;
- fmOutput : Flags:=$1101;
- fmAppend : Flags:=$1011;
- else
- HandleError(102);
- End;
- Do_Open(t,PChar(@t.Name),Flags);
- t.CloseFunc:=@FileCloseFunc;
- t.FlushFunc:=nil;
- if t.Mode=fmInput then
- t.InOutFunc:=@FileReadFunc
- else
- begin
- t.InOutFunc:=@FileWriteFunc;
- { Only install flushing if its a NOT a file }
- if Do_Isdevice(t.Handle) then
- t.FlushFunc:=@FileWriteFunc;
- end;
- End;
-
-
- Procedure assign(var t:Text;const s:String);
- Begin
- FillChar(t,SizEof(TextRec),0);
- { only set things that are not zero }
- TextRec(t).Handle:=UnusedHandle;
- TextRec(t).mode:=fmClosed;
- TextRec(t).BufSize:=128;
- TextRec(t).Bufptr:=@TextRec(t).Buffer;
- TextRec(t).OpenFunc:=@FileOpenFunc;
- Move(s[1],TextRec(t).Name,Length(s));
- End;
-
-
- Procedure assign(var t:Text;p:pchar);
- begin
- Assign(t,StrPas(p));
- end;
-
-
- Procedure assign(var t:Text;c:char);
- begin
- Assign(t,string(c));
- end;
-
-
- Procedure Close(var t : Text);[Public,Alias: 'CLOSE_TEXT',IOCheck];
- Begin
- if InOutRes <> 0 then Exit;
- If (TextRec(t).mode<>fmClosed) Then
- Begin
- { Write pending buffer }
- If Textrec(t).Mode=fmoutput then
- FileFunc(TextRec(t).InOutFunc)(TextRec(t));
- TextRec(t).mode:=fmClosed;
- { Only close functions not connected to stdout.}
- If ((TextRec(t).Handle<>StdInputHandle) or
- (TextRec(t).Handle<>StdOutputHandle) or
- (TextRec(t).Handle<>StdErrorHandle)) Then
- FileFunc(TextRec(t).CloseFunc)(TextRec(t));
- End;
- End;
-
-
- Procedure OpenText(var t : Text;mode,defHdl:Longint);
- Begin
- Case TextRec(t).mode Of {This gives the fastest code}
- fmInput,fmOutput,fmInOut : Close(t);
- fmClosed : ;
- else
- Begin
- InOutRes:=102;
- exit;
- End;
- End;
- TextRec(t).mode:=word(mode);
- FileFunc(TextRec(t).OpenFunc)(TextRec(t))
- End;
-
-
- Procedure Rewrite(var t : Text);[IOCheck];
- Begin
- If InOutRes <> 0 then exit;
- OpenText(t,fmOutput,1);
- End;
-
-
- Procedure Reset(var t : Text);[IOCheck];
- Begin
- If InOutRes <> 0 then exit;
- OpenText(t,fmInput,0);
- End;
-
-
- Procedure Append(var t : Text);[IOCheck];
- Begin
- If InOutRes <> 0 then exit;
- OpenText(t,fmAppend,1);
- End;
-
-
- Procedure Flush(var t : Text);[IOCheck];
- Begin
- If InOutRes <> 0 then exit;
- If TextRec(t).mode<>fmOutput Then
- exit;
- { Not the flushfunc but the inoutfunc should be used, becuase that
- writes the data, flushfunc doesn't need to be assigned }
- FileFunc(TextRec(t).InOutFunc)(TextRec(t));
- End;
-
-
- Procedure Erase(var t:Text);[IOCheck];
- Begin
- If InOutRes <> 0 then exit;
- If TextRec(t).mode=fmClosed Then
- Do_Erase(PChar(@TextRec(t).Name));
- End;
-
-
- Procedure Rename(var t : text;p:pchar);[IOCheck];
- Begin
- If InOutRes <> 0 then exit;
- If TextRec(t).mode=fmClosed Then
- Begin
- Do_Rename(PChar(@TextRec(t).Name),p);
- Move(p^,TextRec(t).Name,StrLen(p)+1);
- End;
- End;
-
-
- Procedure Rename(var t : Text;const s : string);[IOCheck];
- var
- p : array[0..255] Of Char;
- Begin
- If InOutRes <> 0 then exit;
- Move(s[1],p,Length(s));
- p[Length(s)]:=#0;
- Rename(t,Pchar(@p));
- End;
-
-
- Procedure Rename(var t : Text;c : char);[IOCheck];
- var
- p : array[0..1] Of Char;
- Begin
- If InOutRes <> 0 then exit;
- p[0]:=c;
- p[1]:=#0;
- Rename(t,Pchar(@p));
- End;
-
-
- Function Eof(Var t: Text): Boolean;[IOCheck];
- Begin
- If InOutRes <> 0 then exit;
- {$IFNDEF EXTENDED_EOF}
- {$IFDEF EOF_CTRLZ}
- Eof:=TextRec(t).Buffer[TextRec(t).BufPos]=#26;
- If Eof Then
- Exit;
- {$ENDIF EOL_CTRLZ}
- Eof:=(Do_FileSize(TextRec(t).Handle)<=Do_FilePos(TextRec(t).Handle));
- If Eof Then
- Eof:=TextRec(t).BufEnd <= TextRec(t).BufPos;
- {$ELSE EXTENDED_EOF}
- { The previous method will NOT work on stdin and pipes or sockets.
- So how to do it ?
- 1) Check if characters in buffer - Yes ? Eof=false;
- 2) Read buffer full. If 0 Chars Read : Eof !
- Michael.}
- If TextRec(T).mode=fmClosed Then { Sanity Check }
- Begin
- Eof:=True;
- Exit;
- End;
- If (TextRec(T).BufPos < TextRec(T).BufEnd) Then
- Begin
- Eof:=False;
- Exit
- End;
- TextRec(T).BufPos:=0;
- TextRec(T).BufEnd:=Do_Read(TextRec(T).Handle,Longint(TextRec(T).BufPtr),TextRec(T).BufSize);
- If TextRec(T).BufEnd<0 Then
- TextRec(T).BufEnd:=0;
- Eof:=(TextRec(T).BufEnd=0);
- {$ENDIF EXTENDED_EOF}
- End;
-
-
- Function Eof:Boolean;
- Begin
- Eof:=Eof(Input);
- End;
-
-
- Function SeekEof (Var F : Text) : Boolean;
- Var
- TR : ^TextRec;
- Temp : Longint;
- Begin
- TR:=@TextRec(f);
- If TR^.mode<>fmInput Then exit (true);
- SeekEof:=True;
- {No data in buffer ? Fill it }
- If TR^.BufPos>=TR^.BufEnd Then
- FileFunc(TR^.InOutFunc)(TR^);
-
- Temp:=TR^.BufPos;
- while (TR^.BufPos<TR^.BufEnd) Do
- Begin
- If (TR^.Bufptr^[Temp] In [#9,#10,#13,' ']) Then
- Inc(Temp)
- else
- Begin
- SeekEof:=False;
- TR^.BufPos:=Temp;
- exit;
- End;
- If Temp>=TR^.BufEnd Then
- Begin
- FileFunc(TR^.InOutFunc)(TR^);
- Temp:=TR^.BufPos+1;
- End;
- End;
- End;
-
-
- Function SeekEof : Boolean;
- Begin
- SeekEof:=SeekEof(Input);
- End;
-
-
- Function Eoln(var t:Text) : Boolean;
- Begin
- { maybe we need new data }
- If TextRec(t).BufPos>=TextRec(t).BufEnd Then
- FileFunc(TextRec(t).InOutFunc)(TextRec(t));
- Eoln:=Eof(t) or (TextRec(t).Bufptr^[TextRec(t).BufPos] In [#10,#13]);
- End;
-
-
- Function Eoln : Boolean;
- Begin
- Eoln:=Eoln(Input);
- End;
-
-
- Function SeekEoln (Var F : Text) : Boolean;
- Var
- TR : ^TextRec;
- Temp : Longint;
- Begin
- TR:=@TextRec(f);
- If TR^.mode<>fmInput Then
- exit (true);
- SeekEoln:=True;
- {No data in buffer ? Fill it }
- If TR^.BufPos>=TR^.BufEnd Then
- FileFunc(TR^.InOutFunc)(TR^);
- Temp:=TR^.BufPos;
- while (TR^.BufPos<TR^.BufEnd) Do
- Begin
- Case (TR^.Bufptr^[Temp]) Of
- #10 : Exit;
- #9,' ' : Inc(Temp)
- else
- Begin
- SeekEoln:=False;
- TR^.BufPos:=Temp;
- exit;
- End;
- End;
- If Temp>=TR^.BufEnd Then
- Begin
- FileFunc(TR^.InOutFunc)(TR^);
- Temp:=TR^.BufPos+1;
- End;
- End;
- End;
-
-
- Function SeekEoln : Boolean;
- Begin
- SeekEoln:=SeekEoln(Input);
- End;
-
-
- Procedure SetTextBuf(Var F : Text; Var Buf);[INTERNPROC: In_settextbuf_file_x];
-
-
- Procedure SetTextBuf(Var F : Text; Var Buf; Size : Word);
- Begin
- TextRec(f).BufPtr:=@Buf;
- TextRec(f).BufSize:=Size;
- TextRec(f).BufPos:=0;
- TextRec(f).BufEnd:=0;
- End;
-
-
- {*****************************************************************************
- Write(Ln)
- *****************************************************************************}
-
- Procedure WriteBuffer(var f:TextRec;var b;len:longint);
- var
- p : pchar;
- left,
- idx : longint;
- begin
- p:=pchar(@b);
- idx:=0;
- left:=f.BufSize-f.BufPos;
- while len>left do
- begin
- move(p[idx],f.Bufptr^[f.BufPos],left);
- dec(len,left);
- inc(idx,left);
- inc(f.BufPos,left);
- FileFunc(f.InOutFunc)(f);
- left:=f.BufSize-f.BufPos;
- end;
- move(p[idx],f.Bufptr^[f.BufPos],len);
- inc(f.BufPos,len);
- end;
-
-
- Procedure WriteBlanks(var f:TextRec;len:longint);
- var
- left : longint;
- begin
- left:=f.BufSize-f.BufPos;
- while len>left do
- begin
- FillChar(f.Bufptr^[f.BufPos],left,' ');
- dec(len,left);
- inc(f.BufPos,left);
- FileFunc(f.InOutFunc)(f);
- left:=f.BufSize-f.BufPos;
- end;
- FillChar(f.Bufptr^[f.BufPos],len,' ');
- inc(f.BufPos,len);
- end;
-
-
- Procedure Write_End(var f:TextRec);[Public,Alias:'WRITE_END'];
- begin
- if f.FlushFunc<>nil then
- FileFunc(f.FlushFunc)(f);
- end;
-
-
- Procedure Writeln_End(var f:TextRec);[Public,Alias:'WRITELN_END'];
- const
- {$IFDEF SHORT_LINEBREAK}
- eollen=1;
- eol : array[0..0] of char=(#10);
- {$ELSE SHORT_LINEBREAK}
- eollen=2;
- eol : array[0..1] of char=(#13,#10);
- {$ENDIF SHORT_LINEBREAK}
- begin
- If InOutRes <> 0 then exit;
- { Write EOL }
- WriteBuffer(f,eol,eollen);
- { Flush }
- if f.FlushFunc<>nil then
- FileFunc(f.FlushFunc)(f);
- end;
-
-
- Procedure Write_Str(Len : Longint;var f : TextRec;const s : String);[Public,Alias: 'WRITE_TEXT_STRING'];
- Begin
- If InOutRes <> 0 then exit;
- If f.mode<>fmOutput Then
- exit;
- If Len>Length(s) Then
- WriteBlanks(f,Len-Length(s));
- WriteBuffer(f,s[1],Length(s));
- End;
-
-
- Type
- array00 = array[0..0] Of Char;
- Procedure Write_Array(Len : Longint;var f : TextRec;const p : array00);[Public,Alias: 'WRITE_TEXT_PCHAR_AS_ARRAY'];
- var
- ArrayLen : longint;
- Begin
- If InOutRes <> 0 then exit;
- If f.mode<>fmOutput Then
- exit;
- ArrayLen:=StrLen(p);
- If Len>ArrayLen Then
- WriteBlanks(f,Len-ArrayLen);
- WriteBuffer(f,p,ArrayLen);
- End;
-
-
- Procedure Write_PChar(Len : Longint;var f : TextRec;p : PChar);[Public,Alias: 'WRITE_TEXT_PCHAR_AS_POINTER'];
- var
- PCharLen : longint;
- Begin
- If InOutRes <> 0 then exit;
- If f.mode<>fmOutput Then
- exit;
- PCharLen:=StrLen(p);
- If Len>PCharLen Then
- WriteBlanks(f,Len-PCharLen);
- WriteBuffer(f,p^,PCharLen);
- End;
-
- {$ifdef UseAnsiStrings}
- Procedure Write_Text_AnsiString (Len : Longint; Var T : TextRec; Var S : AnsiString);[Public, alias: 'WRITE_TEXT_ANSISTRING'];
- {
- Writes a AnsiString to the Text file T
- }
-
- Var Temp : Pointer;
-
- begin
- Temp:=Pointer(S);
- If Temp=Nil then exit;
- Write_pchar (Len,t,PChar(Temp));
- end;
-
- {$endif}
-
-
- Procedure Write_LongInt(Len : Longint;var t : TextRec;l : Longint);[Public,Alias: 'WRITE_TEXT_LONGINT'];
- var
- s : String;
- Begin
- If InOutRes <> 0 then exit;
- Str(l,s);
- Write_Str(Len,t,s);
- End;
-
-
- Procedure Write_Real(fixkomma,Len : Longint;var t : TextRec;r : real);[Public,Alias: 'WRITE_TEXT_REAL'];
- var
- s : String;
- Begin
- If InOutRes <> 0 then exit;
- {$ifdef i386}
- Str_real(Len,fixkomma,r,rt_s64real,s);
- {$else}
- Str_real(Len,fixkomma,r,rt_s32real,s);
- {$endif}
- Write_Str(Len,t,s);
- End;
-
-
- Procedure Write_Cardinal(Len : Longint;var t : TextRec;l : cardinal);[Public,Alias: 'WRITE_TEXT_CARDINAL'];
- var
- s : String;
- Begin
- If InOutRes <> 0 then exit;
- Str(L,s);
- Write_Str(Len,t,s);
- End;
-
- {$ifdef SUPPORT_SINGLE}
- Procedure Write_Single(fixkomma,Len : Longint;var t : TextRec;r : single);[Public,Alias: 'WRITE_TEXT_SINGLE'];
- var
- s : String;
- Begin
- If InOutRes <> 0 then exit;
- Str_real(Len,fixkomma,r,rt_s32real,s);
- Write_Str(Len,t,s);
- End;
- {$endif SUPPORT_SINGLE}
-
-
- {$ifdef SUPPORT_EXTENDED}
- Procedure Write_Extended(fixkomma,Len : Longint;var t : TextRec;r : extended);[Public,Alias: 'WRITE_TEXT_EXTENDED'];
- var
- s : String;
- Begin
- If InOutRes <> 0 then exit;
- Str_real(Len,fixkomma,r,rt_s80real,s);
- Write_Str(Len,t,s);
- End;
- {$endif SUPPORT_EXTENDED}
-
-
- {$ifdef SUPPORT_COMP}
- Procedure Write_Comp(fixkomma,Len : Longint;var t : TextRec;r : comp);[Public,Alias: 'WRITE_TEXT_COMP'];
- var
- s : String;
- Begin
- If InOutRes <> 0 then exit;
- Str_real(Len,fixkomma,r,rt_s64bit,s);
- Write_Str(Len,t,s);
- End;
- {$endif SUPPORT_COMP}
-
-
- {$ifdef SUPPORT_FIXED}
- Procedure Write_Fixed(fixkomma,Len : Longint;var t : TextRec;r : fixed);[Public,Alias: 'WRITE_TEXT_FIXED'];
- var
- s : String;
- Begin
- If InOutRes <> 0 then exit;
- Str_real(Len,fixkomma,r,rt_f32bit,s);
- Write_Str(Len,t,s);
- End;
- {$endif SUPPORT_FIXED}
-
-
- Procedure Write_Boolean(Len : Longint;var t : TextRec;b : Boolean);[Public,Alias: 'WRITE_TEXT_BOOLEAN'];
- Begin
- If InOutRes <> 0 then exit;
- { Can't use array[boolean] because b can be >0 ! }
- if b then
- Write_Str(Len,t,'TRUE')
- else
- Write_Str(Len,t,'FALSE');
- End;
-
-
- Procedure Write_Char(Len : Longint;var t : TextRec;c : Char);[Public,Alias: 'WRITE_TEXT_CHAR'];
- Begin
- If InOutRes <> 0 then exit;
- If t.mode<>fmOutput Then
- exit;
- If Len>1 Then
- WriteBlanks(t,Len-1);
- If t.BufPos+1>=t.BufSize Then
- FileFunc(t.InOutFunc)(t);
- t.Bufptr^[t.BufPos]:=c;
- Inc(t.BufPos);
- End;
-
-
- {$ifdef VER0_99_5}
- Procedure w(var t : TextRec);[Public,Alias: 'WRITELN_TEXT'];
- var
- hs : String;
- Begin
- If InOutRes <> 0 then exit;
- {$IFDEF SHORT_LINEBREAK}
- hs:=#10;
- {$ELSE}
- hs:=#13#10;
- {$ENDIF}
- Write_Str(0,t,hs);
- End;
- {$endif VER0_99_5}
-
-
- {*****************************************************************************
- Read(Ln)
- *****************************************************************************}
-
- Function OpenInput(var f:TextRec):boolean;
- begin
- If f.mode=fmInput Then
- begin
- { No characters in the buffer? Load them ! }
- If f.BufPos>=f.BufEnd Then
- FileFunc(f.InOutFunc)(f);
- OpenInput:=true;
- end
- else
- OpenInput:=false;
- end;
-
-
-
- Function NextChar(var f:TextRec;var s:string):Boolean;
- begin
- if f.BufPos<f.BufEnd then
- begin
- s:=s+f.BufPtr^[f.BufPos];
- Inc(f.BufPos);
- If f.BufPos>=f.BufEnd Then
- FileFunc(f.InOutFunc)(f);
- NextChar:=true;
- end
- else
- NextChar:=false;
- end;
-
-
-
- Function IgnoreSpaces(var f:TextRec):Boolean;
- {
- Removes all leading spaces,tab,eols from the input buffer, returns true if
- the buffer is empty
- }
- var
- s : string;
- begin
- s:='';
- IgnoreSpaces:=false;
- while f.Bufptr^[f.BufPos] in [#9,#10,#13,' '] do
- if not NextChar(f,s) then
- exit;
- IgnoreSpaces:=true;
- end;
-
-
- Function ReadSign(var f:TextRec;var s:string):Boolean;
- {
- Read + and - sign, return true if buffer is empty
- }
- begin
- ReadSign:=(not (f.Bufptr^[f.BufPos] in ['-','+'])) or NextChar(f,s);
- end;
-
-
- Function ReadBase(var f:TextRec;var s:string;var Base:longint):boolean;
- {
- Read the base $ For 16 and % For 2, if buffer is empty return true
- }
- begin
- case f.BufPtr^[f.BufPos] of
- '$' : Base:=16;
- '%' : Base:=2;
- else
- Base:=10;
- end;
- ReadBase:=(Base=10) or NextChar(f,s);
- end;
-
-
- Function ReadNumeric(var f:TextRec;var s:string;base:longint):Boolean;
- {
- Read numeric input, if buffer is empty then return True
- }
- var
- c : char;
- begin
- ReadNumeric:=false;
- c:=f.BufPtr^[f.BufPos];
- while ((base>=10) and (c in ['0'..'9'])) or
- ((base=16) and (c in ['A'..'F','a'..'f'])) or
- ((base=2) and (c in ['0'..'1'])) do
- begin
- if not NextChar(f,s) then
- exit;
- c:=f.BufPtr^[f.BufPos];
- end;
- ReadNumeric:=true;
- end;
-
-
- Procedure Read_End(var f:TextRec);[Public,Alias:'READ_END'];
- begin
- if f.FlushFunc<>nil then
- FileFunc(f.FlushFunc)(f);
- end;
-
-
- Procedure ReadLn_End(var f : TextRec);[Public,Alias: 'READLN_END'];
- Begin
- If InOutRes <> 0 then exit;
- if not OpenInput(f) then
- exit;
- { Read until a linebreak }
- while (f.BufPos<f.BufEnd) do
- begin
- inc(f.BufPos);
- if (f.BufPtr^[f.BufPos-1]=#10) then
- exit;
- If f.BufPos>=f.BufEnd Then
- FileFunc(f.InOutFunc)(f);
- end;
- { Flush if set }
- if f.FlushFunc<>nil then
- FileFunc(f.FlushFunc)(f);
- End;
-
-
- {$ifdef VER0_99_5}
- Procedure Read_String(var f : TextRec;var s : String);[Public,Alias: 'READ_TEXT_STRING'];
- var
- Temp,sPos : Word;
- Begin
- { Delete the string }
- s:='';
- If InOutRes <> 0 then exit;
- if not OpenInput(f) then
- exit;
- Temp:=f.BufPos;
- sPos:=1;
- while (f.BufPos<f.BufEnd) and (f.Bufptr^[Temp]<>#10) Do
- Begin
- { search linefeed }
- while (f.Bufptr^[Temp]<>#10) and (Temp<f.BufEnd) Do
- Inc(Temp);
- { copy String. Take 255 char limit in account.}
- If sPos+Temp-f.BufPos<=255 Then
- Begin
- Move (f.Bufptr^[f.BufPos],s[sPos],Temp-f.BufPos);
- sPos:=sPos+Temp-f.BufPos;
- { Remove #13 from a #13#10 break }
- If s[sPos-1]=#13 Then
- dec(sPos);
- End
- else
- Begin
- If (sPos<=255) Then
- Move(f.Bufptr^[f.BufPos],s[sPos],256-sPos);
- sPos:=256
- End;
- { update f.BufPos }
- f.BufPos:=Temp;
- If Temp>=f.BufEnd Then
- Begin
- FileFunc(f.InOutFunc)(f);
- Temp:=f.BufPos;
- End
- End;
- s[0]:=chr(sPos-1);
- End;
-
- {$else VER0_99_5}
-
- Procedure Read_String(Maxlen : Longint;var f : TextRec;var s : String);[Public,Alias:'READ_TEXT_STRING'];
- var
- Temp,sPos,nrread : Word;
- Begin
- { Delete the string }
- s:='';
- If InOutRes <> 0 then exit;
- if not OpenInput(f) then
- exit;
- Temp:=f.BufPos;
- sPos:=1;
- NrRead:=0;
- while (f.BufPos<f.BufEnd) and ((f.Bufptr^[Temp]<>#10) and (NrRead<Maxlen)) Do
- Begin
- { search linefeed or length of string }
- while ((f.Bufptr^[Temp]<>#10) and (NrRead<Maxlen)) and (Temp<f.BufEnd) Do
- begin
- Temp:=Temp+1;
- NrRead:=NrRead+1;
- end;
- { copy String. Take 255 char limit in account.}
- If sPos+Temp-f.BufPos<=255 Then
- Begin
- Move (f.Bufptr^[f.BufPos],s[sPos],Temp-f.BufPos);
- sPos:=sPos+Temp-f.BufPos;
- { Remove #13 from a #13#10 break }
- If s[sPos-1]=#13 Then
- dec(sPos);
- End
- else
- Begin
- If (sPos<=255) Then
- Move(f.Bufptr^[f.BufPos],s[sPos],256-sPos);
- sPos:=256
- End;
- { update f.BufPos }
- f.BufPos:=Temp;
- If Temp>=f.BufEnd Then
- Begin
- FileFunc(f.InOutFunc)(f);
- Temp:=f.BufPos;
- End
- End;
- s[0]:=chr(sPos-1);
- End;
- {$endif VER0_99_5}
-
-
- Procedure Read_Char(var f : TextRec;var c : Char);[Public,Alias: 'READ_TEXT_CHAR'];
- Begin
- c:=#0;
- If InOutRes <> 0 then exit;
- if not OpenInput(f) then
- exit;
- If f.BufPos>=f.BufEnd Then
- c:=#26
- else
- c:=f.Bufptr^[f.BufPos];
- Inc(f.BufPos);
- End;
-
-
- Procedure Read_PChar(var f : TextRec;var s : PChar);[Public,Alias:'READ_TEXT_PCHAR_AS_POINTER'];
- var
- p : PChar;
- Temp : byte;
- Begin
- { Delete the string }
- s^:=#0;
- If InOutRes <> 0 then exit;
- p:=s;
- if not OpenInput(f) then
- exit;
- Temp:=f.BufPos;
- while (f.BufPos<f.BufEnd) and (f.Bufptr^[Temp]<>#10) Do
- Begin
- { search linefeed }
- while (f.Bufptr^[Temp]<>#10) and (Temp<f.BufEnd) Do
- inc(Temp);
- { copy string. }
- Move (f.Bufptr^[f.BufPos],p^,Temp-f.BufPos);
- Inc(Longint(p),Temp-f.BufPos);
- If pchar(p-1)^=#13 Then
- dec(p);
- { update f.BufPos }
- f.BufPos:=Temp;
- If Temp>=f.BufEnd Then
- Begin
- FileFunc(f.InOutFunc)(f);
- Temp:=f.BufPos;
- End
- End;
- p^:=#0;
- End;
-
-
- Procedure Read_Array(var f : TextRec;var s : array00);[Public,Alias:'READ_TEXT_PCHAR_AS_ARRAY'];
- var
- p : PChar;
- Temp : byte;
- Begin
- { Delete the string }
- s[0]:=#0;
- If InOutRes <> 0 then exit;
- p:=pchar(@s);
- if not OpenInput(f) then
- exit;
- Temp:=f.BufPos;
- while (f.BufPos<f.BufEnd) and (f.Bufptr^[Temp]<>#10) Do
- Begin
- { search linefeed }
- while (f.Bufptr^[Temp]<>#10) and (Temp<f.BufEnd) Do
- inc(Temp);
- { copy string. }
- Move (f.Bufptr^[f.BufPos],p^,Temp-f.BufPos);
- Inc(Longint(p),Temp-f.BufPos);
- If pchar(p-1)^=#13 Then
- dec(p);
- { update f.BufPos }
- f.BufPos:=Temp;
- If Temp>=f.BufEnd Then
- Begin
- FileFunc(f.InOutFunc)(f);
- Temp:=f.BufPos;
- End
- End;
- p^:=#0;
- End;
-
-
- {$ifdef useansistrings}
- Procedure Read_String(Maxlen : Longint;var f : TextRec;var s : AnsiString);[Public,Alias: 'READ_TEXT_ANSISTRING'];
- var
- p : PChar;
- Temp : byte;
- len : Longint;
- Begin
- { Delete the string }
- Decr_ansi_ref (S);
- // We assign room for 1024 characters totally at random....
- Pointer(s):=Pointer(NewAnsiString(1024));
- If InOutRes <> 0 then exit;
- p:=pointer(s);
- if not OpenInput(f) then
- exit;
- Temp:=f.BufPos;
- while (f.BufPos<f.BufEnd) and (f.Bufptr^[Temp]<>#10) Do
- Begin
- { search linefeed }
- while (f.Bufptr^[Temp]<>#10) and (Temp<f.BufEnd) Do
- inc(Temp);
- { copy string. }
- Move (f.Bufptr^[f.BufPos],p^,Temp-f.BufPos);
- Inc(Longint(p),Temp-f.BufPos);
- Inc(len,Temp-f.bufpos);
- If pchar(p-1)^=#13 Then
- dec(p);
- { update f.BufPos }
- f.BufPos:=Temp;
- If Temp>=f.BufEnd Then
- Begin
- FileFunc(f.InOutFunc)(f);
- Temp:=f.BufPos;
- End
- End;
- p^:=#0;
- PAnsiRec(Pointer(S)-FirstOff)^.Len:=len
- End;
- {$endif}
-
-
- Procedure Read_Longint(var f : TextRec;var l : Longint);[Public,Alias: 'READ_TEXT_LONGINT'];
- var
- hs : String;
- code : Word;
- base : longint;
- Begin
- l:=0;
- If InOutRes <> 0 then exit;
- hs:='';
- if not OpenInput(f) then
- exit;
- if IgnoreSpaces(f) and ReadSign(f,hs) and ReadBase(f,hs,Base) then
- ReadNumeric(f,hs,Base);
- Val(hs,l,code);
- If code<>0 Then
- HandleError(106);
- End;
-
-
- Procedure Read_Integer(var f : TextRec;var l : Integer);[Public,Alias: 'READ_TEXT_INTEGER'];
- var
- ll : Longint;
- Begin
- l:=0;
- If InOutRes <> 0 then exit;
- Read_Longint(f,ll);
- If (ll<-32768) or (ll>32767) Then
- HandleError(106);
- l:=ll;
- End;
-
-
- Procedure Read_Word(var f : TextRec;var l : Word);[Public,Alias: 'READ_TEXT_WORD'];
- var
- ll : Longint;
- Begin
- l:=0;
- If InOutRes <> 0 then exit;
- Read_Longint(f,ll);
- If (ll<0) or (ll>$ffff) Then
- HandleError(106);
- l:=ll;
- End;
-
-
- Procedure Read_Byte(var f : TextRec;var l : byte);[Public,Alias: 'READ_TEXT_BYTE'];
- var
- ll : Longint;
- Begin
- l:=0;
- If InOutRes <> 0 then exit;
- Read_Longint(f,ll);
- If (ll<0) or (ll>255) Then
- HandleError(106);
- l:=ll;
- End;
-
-
- Procedure Read_Shortint(var f : TextRec;var l : shortint);[Public,Alias: 'READ_TEXT_SHORTINT'];
- var
- ll : Longint;
- Begin
- l:=0;
- If InOutRes <> 0 then exit;
- Read_Longint(f,ll);
- If (ll<-128) or (ll>127) Then
- HandleError(106);
- l:=ll;
- End;
-
-
- Procedure Read_Cardinal(var f : TextRec;var l : cardinal);[Public,Alias: 'READ_TEXT_CARDINAL'];
- var
- hs : String;
- code : Word;
- base : longint;
- Begin
- l:=0;
- If InOutRes <> 0 then exit;
- hs:='';
- if not OpenInput(f) then
- exit;
- if IgnoreSpaces(f) and ReadSign(f,hs) and ReadBase(f,hs,Base) then
- ReadNumeric(f,hs,Base);
- val(hs,l,code);
- If code<>0 Then
- HandleError(106);
- End;
-
-
- Procedure Read_Real(var f : TextRec;var d : Real);[Public,Alias: 'READ_TEXT_REAL'];
- var
- hs : String;
- code : Word;
- Begin
- d:=0.0;
- If InOutRes <> 0 then exit;
- hs:='';
- if not OpenInput(f) then
- exit;
- if IgnoreSpaces(f) and ReadSign(f,hs) and ReadNumeric(f,hs,10) then
- begin
- { First check for a . }
- if (f.Bufptr^[f.BufPos]='.') and (f.BufPos<f.BufEnd) Then
- begin
- hs:=hs+'.';
- Inc(f.BufPos);
- If f.BufPos>=f.BufEnd Then
- FileFunc(f.InOutFunc)(f);
- ReadNumeric(f,hs,10);
- end;
- { Also when a point is found check for a E }
- if (f.Bufptr^[f.BufPos] in ['e','E']) and (f.BufPos<f.BufEnd) Then
- begin
- hs:=hs+'E';
- Inc(f.BufPos);
- If f.BufPos>=f.BufEnd Then
- FileFunc(f.InOutFunc)(f);
- if ReadSign(f,hs) then
- ReadNumeric(f,hs,10);
- end;
- end;
- val(hs,d,code);
- If code<>0 Then
- HandleError(106);
- End;
-
-
- {$ifdef SUPPORT_EXTENDED}
- Procedure Read_Extended(var f : TextRec;var d : extended);[Public,Alias: 'READ_TEXT_EXTENDED'];
- var
- hs : String;
- code : Word;
- Begin
- d:=0.0;
- If InOutRes <> 0 then exit;
- hs:='';
- if not OpenInput(f) then
- exit;
- if IgnoreSpaces(f) and ReadSign(f,hs) and ReadNumeric(f,hs,10) then
- begin
- { First check for a . }
- if (f.Bufptr^[f.BufPos]='.') and (f.BufPos<f.BufEnd) Then
- begin
- hs:=hs+'.';
- Inc(f.BufPos);
- If f.BufPos>=f.BufEnd Then
- FileFunc(f.InOutFunc)(f);
- ReadNumeric(f,hs,10);
- end;
- { Also when a point is found check for a E }
- if (f.Bufptr^[f.BufPos] in ['e','E']) and (f.BufPos<f.BufEnd) Then
- begin
- hs:=hs+'E';
- Inc(f.BufPos);
- If f.BufPos>=f.BufEnd Then
- FileFunc(f.InOutFunc)(f);
- if ReadSign(f,hs) then
- ReadNumeric(f,hs,10);
- end;
- end;
- val(hs,d,code);
- If code<>0 Then
- HandleError(106);
- End;
- {$endif SUPPORT_EXTENDED}
-
-
- {$ifdef SUPPORT_COMP}
- Procedure Read_Comp(var f : TextRec;var d : comp);[Public,Alias: 'READ_TEXT_COMP'];
- var
- hs : String;
- code : Word;
- Begin
- d:=comp(0.0);
- If InOutRes <> 0 then exit;
- hs:='';
- if not OpenInput(f) then
- exit;
- if IgnoreSpaces(f) and ReadSign(f,hs) and ReadNumeric(f,hs,10) then
- begin
- { First check for a . }
- if (f.Bufptr^[f.BufPos]='.') and (f.BufPos<f.BufEnd) Then
- begin
- hs:=hs+'.';
- Inc(f.BufPos);
- If f.BufPos>=f.BufEnd Then
- FileFunc(f.InOutFunc)(f);
- ReadNumeric(f,hs,10);
- end;
- { Also when a point is found check for a E }
- if (f.Bufptr^[f.BufPos] in ['e','E']) and (f.BufPos<f.BufEnd) Then
- begin
- hs:=hs+'E';
- Inc(f.BufPos);
- If f.BufPos>=f.BufEnd Then
- FileFunc(f.InOutFunc)(f);
- if ReadSign(f,hs) then
- ReadNumeric(f,hs,10);
- end;
- end;
- val(hs,d,code);
- If code<>0 Then
- HandleError(106);
- End;
- {$endif SUPPORT_COMP}
-
-
- {$ifdef VER0_99_5}
- Procedure r(var f : TextRec);[Public,Alias: 'READLN_TEXT'];
- Begin
- If InOutRes <> 0 then exit;
- if not OpenInput(f) then
- exit;
- while (f.BufPos<f.BufEnd) do
- begin
- inc(f.BufPos);
- if (f.BufPtr^[f.BufPos-1]=#10) then
- exit;
- If f.BufPos>=f.BufEnd Then
- FileFunc(f.InOutFunc)(f);
- end;
- End;
- {$endif VER0_99_5}
-
-
- {*****************************************************************************
- Initializing
- *****************************************************************************}
-
- procedure OpenStdIO(var f:text;mode:word;hdl:longint);
- begin
- Assign(f,'');
- TextRec(f).Handle:=hdl;
- TextRec(f).Mode:=mode;
- TextRec(f).Closefunc:=@FileCloseFunc;
- case mode of
- fmInput : TextRec(f).InOutFunc:=@FileReadFunc;
- fmOutput : begin
- TextRec(f).InOutFunc:=@FileWriteFunc;
- TextRec(f).FlushFunc:=@FileWriteFunc;
- end;
- else
- HandleError(102);
- end;
- end;
-
-
- {
- $Log: text.inc,v $
- Revision 1.21 1998/08/17 22:42:17 michael
- + Flush on close only for output files cd ../inc
-
- Revision 1.20 1998/08/11 00:05:28 peter
- * $ifdef ver0_99_5 updates
-
- Revision 1.19 1998/07/30 13:26:16 michael
- + Added support for ErrorProc variable. All internal functions are required
- to call HandleError instead of runerror from now on.
- This is necessary for exception support.
-
- Revision 1.18 1998/07/29 21:44:35 michael
- + Implemented reading/writing of ansistrings
-
- Revision 1.17 1998/07/19 19:55:33 michael
- + fixed rename. Changed p to p^
-
- Revision 1.16 1998/07/10 11:02:40 peter
- * support_fixed, becuase fixed is not 100% yet for the m68k
-
- Revision 1.15 1998/07/06 15:56:43 michael
- Added length checking for string reading
-
- Revision 1.14 1998/07/02 12:14:56 carl
- + Each IOCheck routine now check InOutRes before, just like TP
-
- Revision 1.13 1998/07/01 15:30:00 peter
- * better readln/writeln
-
- Revision 1.12 1998/07/01 14:48:10 carl
- * bugfix of WRITE_TEXT_BOOLEAN , was not TP compatible
- + added explicit typecast in OpenText
-
- Revision 1.11 1998/06/25 09:44:22 daniel
- + RTLLITE directive to compile minimal RTL.
-
- Revision 1.10 1998/06/04 23:46:03 peter
- * comp,extended are only i386 added support_comp,support_extended
-
- Revision 1.9 1998/06/02 16:47:56 pierre
- * bug for boolean values greater than one fixed
-
- Revision 1.8 1998/05/31 14:14:54 peter
- * removed warnings using comp()
-
- Revision 1.7 1998/05/27 00:19:21 peter
- * fixed crt input
-
- Revision 1.6 1998/05/21 19:31:01 peter
- * objects compiles for linux
- + assign(pchar), assign(char), rename(pchar), rename(char)
- * fixed read_text_as_array
- + read_text_as_pchar which was not yet in the rtl
-
- Revision 1.5 1998/05/12 10:42:45 peter
- * moved getopts to inc/, all supported OS's need argc,argv exported
- + strpas, strlen are now exported in the systemunit
- * removed logs
- * removed $ifdef ver_above
-
- Revision 1.4 1998/04/07 22:40:46 florian
- * final fix of comp writing
- }
-