private void OptionallyConsume(ProjectLexer lexer, TokenKind kind)
{
if (lexer.Token.Kind == kind)
{
lexer.Advance();
}
}
private void ParseMap(ProjectDefinition definition, ProjectLexer lexer)
{
var map = new ProjectMap();
definition.Maps.Add(map);
lexer.Consume(TokenKind.LeftCurly);
while (lexer.Token.Kind == TokenKind.Keyword)
{
var keyword = lexer.Consume(TokenKind.Keyword);
switch (keyword)
{
case "path":
map.Path = ConsumeFile(lexer);
OptionallyConsume(lexer, TokenKind.Semicolon);
break;
default:
throw new ParserException($"Unexpected map keyword: {keyword}.", lexer.Token);
}
}
lexer.Consume(TokenKind.RightCurly);
}
private void ParseSamplePopulator(ProjectModel model, ProjectLexer lexer)
{
var populator = new SampleProjectModelPopulator
{
Type = ProjectModelPopulatorType.Sample,
Id = lexer.Consume(TokenKind.Identifier)
};
model.Populators.Add(populator);
lexer.Consume(TokenKind.LeftCurly);
while (lexer.Token.Kind == TokenKind.Keyword)
{
var keyword = lexer.Consume(TokenKind.Keyword);
switch (keyword)
{
case "files":
populator.Files.AddRange(ConsumeWildcardFiles(lexer));
OptionallyConsume(lexer, TokenKind.Semicolon);
break;
case "zip-mask":
populator.ZipMask = lexer.Consume(TokenKind.String);
OptionallyConsume(lexer, TokenKind.Semicolon);
break;
}
}
lexer.Consume(TokenKind.RightCurly);
}
private void ParseXsdPopulator(ProjectModel model, ProjectLexer lexer)
{
var populator = new XsdProjectModelPopulator
{
Type = ProjectModelPopulatorType.Xsd
};
model.Populators.Add(populator);
lexer.Consume(TokenKind.LeftCurly);
while (lexer.Token.Kind == TokenKind.Keyword)
{
var keyword = lexer.Consume(TokenKind.Keyword);
switch (keyword)
{
case "path":
populator.Path = ConsumeFile(lexer);
OptionallyConsume(lexer, TokenKind.Semicolon);
break;
default:
throw new ParserException($"Unexpected populator keyword: {keyword}.", lexer.Token);
}
}
lexer.Consume(TokenKind.RightCurly);
}
private IEnumerable <SampleInputFile> ConsumeWildcardFiles(ProjectLexer lexer)
{
var mask = lexer.Consume(TokenKind.String);
var dirPath = Path.Combine(Path.GetDirectoryName(lexer.FilePath), Path.GetDirectoryName(mask));
var directory = new DirectoryInfo(dirPath);
var filemask = Path.GetFileName(mask);
foreach (var info in directory.GetFiles(filemask).OrderBy(x => x.Name))
{
yield return(new SampleInputFile
{
Path = info.FullName,
LastWriteUtc = info.LastWriteTimeUtc
});
}
}
private void ParseModel(ProjectDefinition definition, ProjectLexer lexer)
{
var model = new ProjectModel();
definition.Models.Add(model);
model.Id = lexer.Consume(TokenKind.Identifier);
lexer.Consume(TokenKind.LeftCurly);
while (lexer.Token.Kind == TokenKind.Keyword)
{
var keyword = lexer.Consume(TokenKind.Keyword);
switch (keyword)
{
case "csv":
ParseCsvPopulator(model, lexer);
break;
case "name":
model.Name = lexer.Consume(TokenKind.String);
OptionallyConsume(lexer, TokenKind.Semicolon);
break;
case "samples":
ParseSamplePopulator(model, lexer);
break;
case "xsd":
ParseXsdPopulator(model, lexer);
break;
default:
throw new ParserException($"Unexpected model keyword: {keyword}.", lexer.Token);
}
}
lexer.Consume(TokenKind.RightCurly);
}
private void ParseStatement(ProjectDefinition definition, ProjectLexer lexer)
{
lexer.VerifyToken(TokenKind.Keyword);
var text = lexer.Token.Text;
lexer.Advance();
switch (text)
{
case "map":
ParseMap(definition, lexer);
break;
case "model":
ParseModel(definition, lexer);
break;
default:
throw new ParserException($"Unexpected statement keyword: {lexer.Token.Text}.", lexer.Token);
}
}
private string ConsumeFile(ProjectLexer lexer)
{
var fragment = lexer.Consume(TokenKind.String);
return(Path.Combine(Path.GetDirectoryName(lexer.FilePath), fragment));
}