public static TMoFile GetMoFile(string filename, TDebugLogger DebugLogger)
{
Int64 offset, size;
// Find real filename
offset = 0;
size = 0;
string realfilename = filename;
if (filename.StartsWith(basedirectory))
{
filename = filename.Substring(basedirectory.Length);
int idx = filelist.IndexOf(filename);
if (idx != -1)
{
TEmbeddedFileInfo fi = (TEmbeddedFileInfo)filelist.Objects[idx];
realfilename = TGnuGettextInstance.ExecutableFilename;
offset = fi.offset;
size = fi.size;
#if DXGETTEXTDEBUG
DebugLogger("Instead of " + filename + ", using " + realfilename + " from offset " + (offset).ToString() + ", size " + (size).ToString());
#endif
}
}
#if DXGETTEXTDEBUG
DebugLogger("Reading .mo data from file ''" + filename + "''");
#endif
// Find TMoFile object
TMoFile Result;
MoFilesCS.AcquireWriterLock(Timeout.Infinite);
try
{
string idxname = realfilename + " //\\ " + (offset).ToString();
int idx;
if (MoFiles.Find(idxname, out idx))
{
Result = (TMoFile)MoFiles.Objects[idx];
}
else
{
Result = new TMoFile(realfilename, offset, size, TGnuGettextInstance.UseMemoryMappedFiles);
MoFiles.AddObject(idxname, Result);
}
Result.Users++;
}
finally
{
MoFilesCS.ReleaseWriterLock();
}
return(Result);
}
public static void Analyze()
{
// DetectionSignature: used solely to detect gnugettext usage by assemble
const string DetectionSignature = "2E23E563-31FA-4C24-B7B3-90BE720C6B1A";
// Embedded Header Begin Signature (without dynamic prefix written by assemble)
const string BeginHeaderSignature = "BD7F1BE4-9FCF-4E3A-ABA7-3443D11AB362";
// Embedded Header End Signature (without dynamic prefix written by assemble)
const string EndHeaderSignature = "1C58841C-D8A0-4457-BF54-D8315D4CF49D";
// Assemble Prefix (do not put before the Header Signatures!)
const string SignaturePrefix = "DXG"; // written from assemble
int HeaderSize = BeginHeaderSignature.Length;
int PrefixSize = SignaturePrefix.Length;
basedirectory = Utils.IncludeTrailingPathDelimiter(Path.GetDirectoryName(TGnuGettextInstance.ExecutableFilename));
try
{
FileStream fs = new FileStream(TGnuGettextInstance.ExecutableFilename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
try
{
// try to find new header begin and end signatures
long headerbeginpos = FindSignaturePos(SignaturePrefix + BeginHeaderSignature, fs);
long headerendpos = FindSignaturePos(SignaturePrefix + EndHeaderSignature, fs);
if (headerbeginpos > -1 && headerendpos > -1)
{
// adjust positions (to the end of each signature)
headerbeginpos = headerbeginpos + HeaderSize + PrefixSize;
// get file table offset (8 byte, stored directly before the end header)
fs.Seek(headerendpos - 8, SeekOrigin.Begin);
// get relative offset and convert to absolute offset during runtime
Int64 tableoffset = headerbeginpos + ReadInt64(fs);
// go to beginning of embedded block
fs.Seek(headerbeginpos, SeekOrigin.Begin);
Int64 offset = tableoffset;
Debug.Assert(sizeof(Int64) == 8);
while (true && fs.Position < headerendpos)
{
fs.Position = offset;
offset = ReadInt64(fs);
if (offset == 0)
{
return;
}
offset = headerbeginpos + offset;
TEmbeddedFileInfo fi = new TEmbeddedFileInfo();
try
{
// get embedded file info (adjusting dynamic to real offsets now)
fi.offset = headerbeginpos + ReadInt64(fs);
fi.size = ReadInt64(fs);
byte[] filename8bit = new byte[offset - fs.Position];
fs.Read(filename8bit, 0, (int)(offset - fs.Position));
string filename = Encoding.UTF8.GetString(filename8bit).Trim();
if (TGnuGettextInstance.PreferExternal && File.Exists(basedirectory + filename))
{
// Disregard the internal version and use the external version instead
}
else
{
filelist.AddObject(filename, fi);
}
}
catch
{
throw;
}
}
}
}
finally
{
fs.Dispose();
}
}
catch
{
#if DXGETTEXTDEBUG
throw;
#endif
}
}
