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{
This file is part of the Free Pascal run time library.
Copyright (c) 2000 by Florian Klaempfl
It creates pascal units from unicode mapping files
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.
**********************************************************************}
program creumap;
uses
charset;
procedure doerror;
begin
writeln('Usage: creumap <cpname> <cpnumber>');
writeln('cpname : A mapping file called <cpname>.txt must be present');
writeln('cpnumber : the code page number');
halt(1);
end;
type
TEndianKind = (Little, Big);
const
ENDIAN_SUFFIX : array[TEndianKind] of string[2] = ('le','be');
{$IFDEF ENDIAN_LITTLE}
ENDIAN_NATIVE = TEndianKind.Little;
ENDIAN_NON_NATIVE = TEndianKind.Big;
{$ENDIF ENDIAN_LITTLE}
{$IFDEF ENDIAN_BIG}
ENDIAN_NATIVE = TEndianKind.Big;
ENDIAN_NON_NATIVE = TEndianKind.Little;
{$ENDIF ENDIAN_BIG}
procedure CreateBinaryFile(AMap : punicodemap; const ABaseFile : string);
var
nef, oef : File of Byte;
h, th : TSerializedMapHeader;
k : Longint;
um : tunicodecharmapping;
pum : punicodecharmapping;
rm : treversecharmapping;
prm : preversecharmapping;
begin
FillChar(h,SizeOf(h),0);
h.cpName := AMap^.cpname;
h.cp := AMap^.cp;
h.lastChar := AMap^.lastchar;
h.mapLength := (AMap^.lastchar+1)*SizeOf(tunicodecharmapping);
h.reverseMapLength := AMap^.reversemaplength*SizeOf(treversecharmapping);
Assign(nef,(ABaseFile+'_'+ENDIAN_SUFFIX[ENDIAN_NATIVE]+'.bcm'));
Rewrite(nef);
BlockWrite(nef,h,SizeOf(h));
BlockWrite(nef,AMap^.map^,h.mapLength);
BlockWrite(nef,AMap^.reversemap^,h.reverseMapLength);
Close(nef);
th.cpName := h.cpName;
th.cp := SwapEndian(h.cp);
th.mapLength := SwapEndian(h.mapLength);
th.lastChar := SwapEndian(h.lastChar);
th.reverseMapLength := SwapEndian(h.reverseMapLength);
Assign(oef,(ABaseFile+'_'+ENDIAN_SUFFIX[ENDIAN_NON_NATIVE]+'.bcm'));
Rewrite(oef);
BlockWrite(oef,th,SizeOf(th));
pum := AMap^.map;
for k := 0 to AMap^.lastchar do begin
um.flag := pum^.flag;
um.reserved := pum^.reserved;
um.unicode := SwapEndian(pum^.unicode);
BlockWrite(oef,um,SizeOf(um));
Inc(pum);
end;
prm := AMap^.reversemap;
for k := 0 to AMap^.reversemaplength - 1 do begin
rm.unicode := SwapEndian(prm^.unicode);
rm.char1 := prm^.char1;
rm.char2 := prm^.char2;
BlockWrite(oef,rm,SizeOf(rm));
Inc(prm);
end;
Close(oef);
end;
var
p : punicodemap;
i : longint;
t : text;
e : word;
c : longint;
begin
if paramcount<>2 then
doerror;
Val(paramstr(2),i,e);
if e<>0 then
doerror;
p:=loadunicodemapping(paramstr(1),paramstr(1)+'.txt',i);
if p=nil then
doerror;
assign(t,paramstr(1)+'.pp');
rewrite(t);
writeln(t,'{ This is an automatically created file, so don''t edit it }');
writeln(t,'unit ',p^.cpname,';');
writeln(t);
writeln(t,' interface');
writeln(t);
writeln(t,' implementation');
writeln(t);
writeln(t,' uses');
writeln(t,' charset;');
writeln(t);
writeln(t,' const');
writeln(t,' map : array[0..',p^.lastchar,'] of tunicodecharmapping = (');
for i:=0 to p^.lastchar do
begin
write(t,' (unicode : ',p^.map[i].unicode,'; flag : ');
case p^.map[i].flag of
umf_noinfo : write(t,'umf_noinfo');
umf_leadbyte : write(t,'umf_leadbyte');
umf_undefined : write(t,'umf_undefined');
umf_unused : write(t,'umf_unused');
end;
write(t,'; reserved: 0)');
if i<>p^.lastchar then
writeln(t,',')
else
writeln(t);
end;
writeln(t,' );');
writeln(t);
c:=p^.reversemaplength-1;
writeln(t,' reversemap : array[0..',c,'] of treversecharmapping = (');
for i:=0 to c do
begin
write(t,' (',
'unicode : ',p^.reversemap[i].unicode,
'; char1 : ',p^.reversemap[i].char1,
'; char2 : ',p^.reversemap[i].char2,
')'
);
if i<>c then
writeln(t,',')
else
writeln(t);
end;
writeln(t,' );');
writeln(t);
writeln(t,' unicodemap : tunicodemap = (');
writeln(t,' cpname : ''',p^.cpname,''';');
writeln(t,' cp : ',p^.cp,';');
writeln(t,' map : @map;');
writeln(t,' lastchar : ',p^.lastchar,';');
writeln(t,' reversemap : @reversemap;');
writeln(t,' reversemaplength : ',p^.reversemaplength,';');
writeln(t,' next : nil;');
writeln(t,' internalmap : true');
writeln(t,' );');
writeln(t);
writeln(t,' begin');
writeln(t,' registermapping(@unicodemap)');
writeln(t,' end.');
close(t);
CreateBinaryFile(p,paramstr(1));
end.
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