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* endianfixes .mo reader.

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git-svn-id: trunk@14626 -
This commit is contained in:
marco 2010-01-12 14:05:51 +00:00
parent b6a23de91e
commit aad151b506
1 changed files with 44 additions and 2 deletions
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46
packages/fcl-base/src/gettext.pp
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@ -26,7 +26,6 @@ const
MOFileHeaderMagic = $950412de; MOFileHeaderMagic = $950412de;
type type
TMOFileHeader = packed record TMOFileHeader = packed record
magic: LongWord; // MOFileHeaderMagic magic: LongWord; // MOFileHeaderMagic
revision: LongWord; // 0 revision: LongWord; // 0
@ -85,18 +84,55 @@ uses
{$endif} {$endif}
procedure Endianfixmotable(p:PMOStringTable;n:integer);
var I:integer;
begin
if n>0 then
for i:=0 to n-1 do
begin
p^[i].length:=swapendian(p^[i].length);
p^[i].offset:=swapendian(p^[i].offset);
end;
end;
procedure Endianfixhashtable(p:PLongwordArray;n:integer);
var I:integer;
begin
if n>0 then
for i:=0 to n-1 do
begin
p^[i]:=swapendian(p^[i]);
end;
end;
constructor TMOFile.Create(AStream: TStream); constructor TMOFile.Create(AStream: TStream);
var var
header: TMOFileHeader; header: TMOFileHeader;
i: Integer; i: Integer;
endianswap : boolean;
begin begin
inherited Create; inherited Create;
AStream.Read(header, Sizeof(header)); AStream.Read(header, Sizeof(header));
if header.magic <> MOFileHeaderMagic then if (header.magic <> MOFileHeaderMagic) and (swapendian(header.magic)<>MOFileHeaderMagic) then
raise EMOFileError.Create('Invalid magic - not a MO file?'); raise EMOFileError.Create('Invalid magic - not a MO file?');
endianswap:=header.magic<>MOFileHeaderMagic;
If EndianSwap then
begin
with header do
begin
revision :=SwapEndian(revision);
nstrings :=SwapEndian(nstrings);
OrigTabOffset :=SwapEndian(OrigTabOffset);
TransTabOffset:=SwapEndian(TransTabOffset);
HashTabSize :=SwapEndian(HashTabSize);
HashTabOffset :=SwapEndian(HashTabOffset);
end;
end;
GetMem(OrigTable, header.nstrings * SizeOf(TMOStringInfo)); GetMem(OrigTable, header.nstrings * SizeOf(TMOStringInfo));
GetMem(TranslTable, header.nstrings * SizeOf(TMOStringInfo)); GetMem(TranslTable, header.nstrings * SizeOf(TMOStringInfo));
GetMem(OrigStrings, header.nstrings * SizeOf(PChar)); GetMem(OrigStrings, header.nstrings * SizeOf(PChar));
@ -105,9 +141,13 @@ begin
AStream.Position := header.OrigTabOffset; AStream.Position := header.OrigTabOffset;
AStream.Read(OrigTable^, header.nstrings * SizeOf(TMOStringInfo)); AStream.Read(OrigTable^, header.nstrings * SizeOf(TMOStringInfo));
if EndianSwap then
EndianFixmotable(OrigTable,Header.NStrings);
AStream.Position := header.TransTabOffset; AStream.Position := header.TransTabOffset;
AStream.Read(TranslTable^, header.nstrings * SizeOf(TMOStringInfo)); AStream.Read(TranslTable^, header.nstrings * SizeOf(TMOStringInfo));
if EndianSwap then
EndianFixmotable(TranslTable,Header.NStrings);
StringCount := header.nstrings; StringCount := header.nstrings;
@ -139,6 +179,8 @@ begin
GetMem(HashTable, 4 * HashTableSize); GetMem(HashTable, 4 * HashTableSize);
AStream.Position := header.HashTabOffset; AStream.Position := header.HashTabOffset;
AStream.Read(HashTable^, 4 * HashTableSize); AStream.Read(HashTable^, 4 * HashTableSize);
if EndianSwap then
EndianFixHashTable(hashtable,hashtablesize);
end; end;
constructor TMOFile.Create(const AFilename: String); constructor TMOFile.Create(const AFilename: String);