public static MqChunk Parse(MqTokenizer tokenizer)
{
while (tokenizer.Current.Kind == MqTokenizer.NewLineTokenKind)
{
tokenizer.MoveNext();
}
var rt = new MqChunk
{
Name = tokenizer.Current.Kind == MqTokenizer.IdentifierTokenKind || tokenizer.Current.Kind == MqTokenizer.StringTokenKind
? tokenizer.Current.Text
: null,
};
var args = tokenizer.StartWith(tokenizer.Current.Kind == MqTokenizer.DigitTokenKind ? new[] { tokenizer.Current } : new Token[0])
.TakeWhile(_ => _.Kind != MqTokenizer.BeginChildrenTokenKind && _.Kind != MqTokenizer.NewLineTokenKind)
.ToArray();
rt.Arguments = args.TakeWhile(_ => _.Kind == MqTokenizer.DigitTokenKind || _.Kind == MqTokenizer.StringTokenKind).Select(_ => _.Text).ToList();
rt.Attributes = Util.Defer(() =>
{
var attrs = args.Skip(rt.Arguments.Count);
var current = attrs.FirstOrDefault();
return(attrs.GroupBy(_ =>
{
if (_.Kind == MqTokenizer.IdentifierTokenKind)
{
current = _;
}
return current;
})
.Select(_ => new MqChunkAttribute
{
Name = _.Key.Text,
Arguments = _.Skip(1).Select(t => t.Text).ToList(),
}));
}).ToList();
if (tokenizer.Current.Kind == MqTokenizer.BeginChildrenTokenKind)
{
rt.Children = tokenizer.TakeWhile(_ => _.Kind != MqTokenizer.EndChildrenTokenKind)
.Select(_ => Parse(tokenizer))
.ToList();
tokenizer.MoveNext(MqTokenizer.EndChildrenTokenKind);
}
return(rt);
}
public static MqDocument Parse(string text)
{
var rt = new MqDocument();
var tokenizer = new MqTokenizer(text);
var header = new[] { "Metasequoia", "Document", "\n", "Format", "Text", "Ver" };
if (!tokenizer.Take(header.Length).Select(_ => _.Text).SequenceEqual(header))
{
throw new InvalidOperationException("invalid format");
}
rt.Version = float.Parse(tokenizer.MoveNext().EnsureKind(MqTokenizer.DigitTokenKind).Text);
if (rt.Version >= 2)
{
throw new NotSupportedException("specified format version not supported");
}
foreach (var i in tokenizer)
{
if (i.Kind == MqTokenizer.IdentifierTokenKind)
{
var chunk = MqChunk.Parse(tokenizer);
switch (chunk.Name.ToLower())
{
case "includexml":
rt.IncludeXml = chunk.Arguments.First().Trim('"');
break;
case "scene":
rt.Scene = MqScene.Parse(chunk);
break;
case "material":
rt.Materials = chunk.Children.Select(MqMaterial.Parse).ToList();
break;
case "object":
rt.Objects.Add(MqObject.Parse(chunk));
break;
case "eof":
break;
default:
rt.CustomChunks.Add(chunk);
break;
}
}
}
return(rt);
}
public static MqChunk Parse(MqTokenizer tokenizer)
{
while (tokenizer.Current.Kind == MqTokenizer.NewLineTokenKind)
tokenizer.MoveNext();
var rt = new MqChunk
{
Name = tokenizer.Current.Kind == MqTokenizer.IdentifierTokenKind || tokenizer.Current.Kind == MqTokenizer.StringTokenKind
? tokenizer.Current.Text
: null,
};
var args = tokenizer.StartWith(tokenizer.Current.Kind == MqTokenizer.DigitTokenKind ? new[] { tokenizer.Current } : new Token[0])
.TakeWhile(_ => _.Kind != MqTokenizer.BeginChildrenTokenKind && _.Kind != MqTokenizer.NewLineTokenKind)
.ToArray();
rt.Arguments = args.TakeWhile(_ => _.Kind == MqTokenizer.DigitTokenKind || _.Kind == MqTokenizer.StringTokenKind).Select(_ => _.Text).ToList();
rt.Attributes = Util.Defer(() =>
{
var attrs = args.Skip(rt.Arguments.Count);
var current = attrs.FirstOrDefault();
return attrs.GroupBy(_ =>
{
if (_.Kind == MqTokenizer.IdentifierTokenKind)
current = _;
return current;
})
.Select(_ => new MqChunkAttribute
{
Name = _.Key.Text,
Arguments = _.Skip(1).Select(t => t.Text).ToList(),
});
}).ToList();
if (tokenizer.Current.Kind == MqTokenizer.BeginChildrenTokenKind)
{
rt.Children = tokenizer.TakeWhile(_ => _.Kind != MqTokenizer.EndChildrenTokenKind)
.Select(_ => Parse(tokenizer))
.ToList();
tokenizer.MoveNext(MqTokenizer.EndChildrenTokenKind);
}
return rt;
}
public static MqDocument Parse(string text)
{
var rt = new MqDocument();
var tokenizer = new MqTokenizer(text);
var header = new[] { "Metasequoia", "Document", "\n", "Format", "Text", "Ver" };
if (!tokenizer.Take(header.Length).Select(_ => _.Text).SequenceEqual(header))
throw new InvalidOperationException("invalid format");
rt.Version = float.Parse(tokenizer.MoveNext().EnsureKind(MqTokenizer.DigitTokenKind).Text);
if (rt.Version >= 2)
throw new NotSupportedException("specified format version not supported");
foreach (var i in tokenizer)
if (i.Kind == MqTokenizer.IdentifierTokenKind)
{
var chunk = MqChunk.Parse(tokenizer);
switch (chunk.Name.ToLower())
{
case "includexml":
rt.IncludeXml = chunk.Arguments.First().Trim('"');
break;
case "scene":
rt.Scene = MqScene.Parse(chunk);
break;
case "material":
rt.Materials = chunk.Children.Select(MqMaterial.Parse).ToList();
break;
case "object":
rt.Objects.Add(MqObject.Parse(chunk));
break;
case "eof":
break;
default:
rt.CustomChunks.Add(chunk);
break;
}
}
return rt;
}
