public IEnumerable <Tuple <string, NumberRoot, List <ParagraphFormatException> > > Extract(ParsedFile file)
{
var result = ExtractInternal(file).ToArray();
if (result.Length == 0)
{
yield return(new Tuple <string, NumberRoot, List <ParagraphFormatException> >("错误", new NumberRoot(), new List <ParagraphFormatException>
{
new SevereException("什么都没解析出来"),
}));
}
for (var i = 0; i < result.Length; ++i)
{
var item = result[i];
if (i == result.Length - 1)
{
var maxN = NumberNodeHelper.GetMaxNumber(item.Item2);
if (maxN < 15 || maxN > 30)
{
item.Item3.Add(
new SevereException($"最后的最大题号是{maxN}, 不正常（应在15-30间）"));
}
}
yield return(item);
}
}
private ParagraphFormatException?CheckLastChoiceContent(NumberNode node)
{
if (node.Children.Any())
{
var lastChoiceContent = NodeHelper.ConcatNodeContent(node.Children.Last(), false);
if (lastChoiceContent.Length > 200)
{
return(new NumberException(
"选项内容过长，可能是中间缺少了题号，以致未能正确分割",
string.Join(" ", NumberNodeHelper.GetNumberChain(node)),
lastChoiceContent));
}
}
return(null);
}
private NumberNode?ConsumeNumberFromDataView(ref IDataView data, int paragraphOrder)
{
var backup = _numberManager.Save();
InvalidNumberException?exception = null;
foreach (var result in _decoratedNumberParser.Consume(data))
{
if (result.Result.Number.IntNumber > 50)
{
continue;
}
try
{
var node = _numberManager.AddNumber(result.Result, paragraphOrder);
data = result.DataView;
exception = null;
return(node);
}
catch (ReadingParagraphNumberException)
{
_numberManager.Load(backup);
}
catch (InvalidNumberException e)
{
exception = e;
_numberManager.Load(backup);
}
}
if (exception != null)
{
var p = _numberManager.Current;
if (p == null)
{
throw new NumberException(exception.Message, $"Paragraph {paragraphOrder}", data.CurrentView.ToString());
}
var chain = NumberNodeHelper.GetNumberChain(p);
throw new NumberException(exception.Message, string.Join(" ", chain), data.CurrentView.ToString());
}
return(null);
}
protected override bool NumberNodeVisitor_OnVisited(NumberNode node, int level, out List <ParagraphFormatException> exceptions)
{
exceptions = new List <ParagraphFormatException>();
var m = _childScoreRegex.Match(node.Header);
if (m.Success)
{
var score = double.Parse(m.Groups["score"].Value);
foreach (var child in node.Children)
{
child.Score = score;
}
}
m = _sumScoreRegex.Match(node.Header);
if (m.Success)
{
var score = double.Parse(m.Groups["score"].Value);
node.Score = score;
}
else
{
m = _currentScoreRegex.Match(node.Header);
if (m.Success)
{
if (!double.TryParse(m.Groups["score"].Value, out var score))
{
exceptions.Add(
new NumberException(
$"遇到 \"{m.Groups["score"].Value}\"，应为数字",
string.Join(" ", NumberNodeHelper.GetNumberChain(node)),
node.Header));
}
node.Score = score;
}
}
return(true);
}
