TranslateTool.PoReader.ReadPoEntry C# (CSharp) Method

        PoEntry ReadPoEntry()
        {
            PoLine line;

            // skip whitespace.
            do {
                line = ReadLine();
            } while (line != null && line.kind == PoLineKind.Blank);

            if (line == null)
                return null;           // at end of file.

            List<PoLocation> locations = new List<PoLocation>();
            string localized = "", nonlocalized = "";
            string currentKeyword = null;

            do {
                if (line.kind == PoLineKind.LocationComment)
                    locations.Add(new PoLocation(line.str1, line.str2));
                else if (line.kind == PoLineKind.KeywordString) {
                    currentKeyword = line.str1;
                    if (currentKeyword == "msgid")
                        nonlocalized = line.str2;
                    else if (currentKeyword == "msgstr")
                        localized = line.str2;
                }
                else if (line.kind == PoLineKind.String) {
                    if (currentKeyword == "msgid")
                        nonlocalized += line.str1;
                    else if (currentKeyword == "msgstr")
                        localized += line.str1;
                }

                line = ReadLine();
            }
            while (line != null && line.kind != PoLineKind.Blank);

            return new PoEntry(locations, nonlocalized, localized);
        }