private void CompileTranslation(MetadataCsvReader meta, TextReader translation, TextReader source, TextWriter dest)
{
var src = new CharCountingReader(source);
var substitution = new SpanPairReader(translation);
_config = DotConfig.GetConfiguration(Workspace.SourcePath);
foreach (TextSpan span in meta.GetSpans())
{
int preserveSize = (int)span.Offset - src.Position;
if (src.TextCopyTo(dest, preserveSize) != preserveSize)
{
return;
}
string translated = substitution.ReadCorrespondingSpan(span);
translated = ApplyPostProcess(span, src, translated);
if (translated == null)
{
continue;
}
dest.Write(translated);
}
_ = src.TextCopyTo(dest, int.MaxValue);
// TODO: warn mismatch of translation having more line
}
public void BuildTranslation()
{
string translation = GetAlternativeTranslationIfExists();
string destPath = Util.PrecreateDirectory(Workspace.DestinationPath);
if (!StringWithCodePage.ReadAllTextAutoDetect(Workspace.SourcePath, out StringWithCodePage sourceText))
{
File.Copy(Workspace.SourcePath, destPath, true);
return;
}
Encoding destinationEncoding = sourceText.Encoding.CodePage == 932 ? _cp949 : _utf8WithBom;
using var meta = new MetadataCsvReader(Workspace.MetadataPath);
using StreamReader trans = File.OpenText(translation);
using var source = new StringReader(sourceText.Content);
using var dest = new StreamWriter(File.Create(destPath), destinationEncoding);
CompileTranslation(meta, trans, source, dest);
}