public static DataLine Parse(POFile file, IO.TextLine source, Line previous)
{
Match match;
bool isContinuation;
DataLine.Kinds?kind;
string text;
int? index;
string sourceValue = source.Value;
if ((match = DataLine.RxContinuation.Match(sourceValue)).Success)
{
if (previous == null)
{
throw new Exception("Data continuation at block start.");
}
if (previous.Type != Line.Types.Data)
{
throw new Exception("Data continuation after a non-data line.");
}
DataLine prevData = (DataLine)previous;
isContinuation = true;
kind = prevData._kind;
text = match.Groups["text"].Value;
Line.IIndexedLine idx = prevData as Line.IIndexedLine;
index = (idx != null) ? idx.Index : (int?)null;
}
else
{
isContinuation = false;
kind = null;
text = null;
index = null;
foreach (KeyValuePair <DataLine.Kinds, Regex> kv in DataLine.RxFindKind)
{
match = kv.Value.Match(sourceValue);
if (!match.Success)
{
continue;
}
kind = kv.Key;
text = match.Groups["text"].Value;
index = (match.Groups["index"].Value.Length > 0) ? int.Parse(match.Groups["index"].Value) : (int?)null;
break;
}
}
if (!kind.HasValue)
{
throw new Exception("Unknown line kind.");
}
if (index.HasValue)
{
return(new IndexedDataLine(file, source, isContinuation, kind.Value, text, index.Value));
}
else
{
return(new DataLine(file, source, isContinuation, kind.Value, text));
}
}
internal IndexedDataLine(POFile file, IO.TextLine source, bool isContinuation, DataLine.Kinds kind, string text, int index)
: base(file, source, isContinuation, kind, text)
{
this._index = index;
}
internal static DataLine CreateNew(PO.Entry entry, DataLine.Kinds kind, int? index, bool isContinuation, IO.TextLine addRelativeTo, bool addRelativeToBefore, string text)
{
if (entry == null)
throw new ArgumentNullException("entry");
if (addRelativeTo == null)
throw new ArgumentNullException("addRelativeTo");
int insertAt = entry.File.TextFile.Lines.IndexOf(addRelativeTo);
if (insertAt < 0)
throw new ArgumentOutOfRangeException("addRelativeTo");
if (!addRelativeToBefore)
insertAt++;
IO.TextLine textLine = new IO.TextLine(BuildTextFileData(kind, index, isContinuation, text));
entry.File.TextFile.Lines.Insert(insertAt, textLine);
DataLine result;
if (index.HasValue)
result = new IndexedDataLine(entry.File, textLine, isContinuation, kind, text, index.Value);
else
result = new DataLine(entry.File, textLine, isContinuation, kind, text);
entry.LineAdded(result);
return result;
}
private static string BuildTextFileData(DataLine.Kinds kind, int? index, bool isContinuation, string text)
{
StringBuilder res = new StringBuilder();
if (!isContinuation)
{
switch (kind)
{
case Kinds.Context:
res.Append("msgctxt ");
break;
case Kinds.ID:
res.Append("msgid ");
break;
case Kinds.IDPlural:
res.Append("msgid_plural ");
break;
case Kinds.Translated:
res.Append("msgstr ");
break;
case Kinds.TranslatedIndexed:
res.Append("msgstr[").Append(index.Value).Append("] ");
break;
default:
throw new NotImplementedException();
}
}
res.Append('"');
if (!string.IsNullOrEmpty(text))
res.Append(text);
res.Append('"');
return res.ToString();
}
protected DataLine(POFile file, IO.TextLine source, bool isContinuation, DataLine.Kinds kind, string text)
: base(file, source, Line.Types.Data, isContinuation, text)
{
this._kind = kind;
}