public static IrbisTree ParseStream
(
[NotNull] TextReader reader
)
{
IrbisTree result = new IrbisTree();
List <Item> list = new List <Item>();
string line = reader.ReadLine();
if (line == null)
{
goto DONE;
}
if (CountIndent(line) != 0)
{
throw new FormatException();
}
list.Add(new Item(line));
int currentLevel = 0;
while ((line = reader.ReadLine()) != null)
{
int level = CountIndent(line);
if (level > (currentLevel + 1))
{
throw new FormatException();
}
currentLevel = level;
line = line.TrimStart(Indent);
Item item = new Item(line)
{
_level = currentLevel
};
list.Add(item);
}
int maxLevel = list.Max(item => item._level);
for (int level = 0; level < maxLevel; level++)
{
_ArrangeLevel(list, level);
}
var roots = list.Where(item => item._level == 0);
result.Roots.AddRange(roots);
DONE:
return(result);
}
public static IrbisTree ReadLocalFile
(
[NotNull] string fileName,
[NotNull] Encoding encoding
)
{
using (StreamReader reader
= new StreamReader
(
File.OpenRead(fileName),
encoding
))
{
IrbisTree result = ParseStream(reader);
result.FileName = Path.GetFileName(fileName);
return(result);
}
}
