public void LineContinuation()
{
string[] lines =
{
"in\\\n",
"t ab\\\n",
"cde\\\n",
"fgh;",
"1234\\\n",
"56789"
};
GLSLLexer lexer = new GLSLLexer();
MultiLineTextSource source = MultiLineTextSource.FromString(lines);
List <Token> tokens = lexer.Run(source.CurrentSnapshot).ToList();
Assert.AreEqual(5, tokens.Count);
Assert.AreEqual(SyntaxType.IntKeyword, tokens[0].SyntaxType);
Assert.AreEqual(SyntaxType.IdentifierToken, tokens[1].SyntaxType);
Assert.AreEqual("abcdefgh", tokens[1].Text);
Assert.AreEqual(SyntaxType.SemicolonToken, tokens[2].SyntaxType);
Assert.AreEqual(SyntaxType.IntConstToken, tokens[3].SyntaxType);
Assert.AreEqual("123456789", tokens[3].Text);
}
public void FromString()
{
string lines = "one\r\ntwo\r\nthree\r\n";
MultiLineTextSource source = MultiLineTextSource.FromString(lines);
Assert.AreEqual(3, source.CurrentSnapshot.LineCount);
Assert.AreEqual("one\r\n", source.CurrentSnapshot.GetLineFromLineNumber(0).Text);
Assert.AreEqual("two\r\n", source.CurrentSnapshot.GetLineFromLineNumber(1).Text);
Assert.AreEqual("three\r\n", source.CurrentSnapshot.GetLineFromLineNumber(2).Text);
}
public void FullParse()
{
string[] lines = File.ReadAllLines("test.glsl");
GLSLLexer lexer = new GLSLLexer();
MultiLineTextSource source = MultiLineTextSource.FromString(lines, true);
GLSLParser parser = new GLSLParser(source.Settings);
LinkedList <Token> tokens = lexer.Run(source.CurrentSnapshot);
SyntaxTree tree = parser.Run(source.CurrentSnapshot, tokens);
tree.WriteToXml("tree.xml", source.CurrentSnapshot);
}
public void PeekAheadToNextLine()
{
string lines = "one\r\ntwo\r\nthree\r\n";
MultiLineTextSource source = MultiLineTextSource.FromString(lines);
TextNavigator nav = new TextNavigator(source.CurrentSnapshot);
int index = 0;
while (nav.PeekChar() != TextNavigator.EndCharacter)
{
Assert.AreEqual(lines[index++], nav.PeekChar());
nav.Advance();
}
}
public void LexComment()
{
string[] lines =
{
"/*\n",
"this is in a block comment/* */\n",
"*/\n",
"\n",
"// this is in a comment\n",
"/* */ /* /* */ \n",
"Assert.AreEqual(resultTypes[i], lexer.GetTokens().First.Value.Type);*/\n",
"// this is a line comment \\\n",
"that continues to the next line \\\n",
"and still continues \\\n"
};
GLSLLexer lexer = new GLSLLexer();
MultiLineTextSource source = MultiLineTextSource.FromString(lines);
LinkedList <Token> list = lexer.Run(source.CurrentSnapshot);
LinkedListNode <Token> node = list.First;
Assert.AreEqual(1, list.Count);
Assert.AreEqual(SyntaxType.EOF, node.Value.SyntaxType);
Assert.AreEqual(false, node.Value.HasTrailingTrivia);
Assert.AreEqual(true, node.Value.HasLeadingTrivia);
Assert.AreEqual(SyntaxType.TriviaList, node.Value.LeadingTrivia.SyntaxType);
SyntaxTriviaList triviaList = node.Value.LeadingTrivia as SyntaxTriviaList;
Assert.AreEqual(10, triviaList.List.Count);
Assert.AreEqual(SyntaxType.BlockCommentTrivia, triviaList.List[0].SyntaxType);
Assert.AreEqual(SyntaxType.NewLineTrivia, triviaList.List[1].SyntaxType);
Assert.AreEqual(SyntaxType.NewLineTrivia, triviaList.List[2].SyntaxType);
Assert.AreEqual(SyntaxType.LineCommentTrivia, triviaList.List[3].SyntaxType);
Assert.AreEqual(SyntaxType.NewLineTrivia, triviaList.List[4].SyntaxType);
Assert.AreEqual(SyntaxType.BlockCommentTrivia, triviaList.List[5].SyntaxType);
Assert.AreEqual(SyntaxType.WhiteSpaceTrivia, triviaList.List[6].SyntaxType);
Assert.AreEqual(SyntaxType.BlockCommentTrivia, triviaList.List[7].SyntaxType);
Assert.AreEqual(SyntaxType.NewLineTrivia, triviaList.List[8].SyntaxType);
Assert.AreEqual(SyntaxType.LineCommentTrivia, triviaList.List[9].SyntaxType);
}
public void ShortSpan()
{
string lines = "one\r\ntwo\r\nthree\r\n";
MultiLineTextSource source = MultiLineTextSource.FromString(lines);
TextNavigator nav = new TextNavigator(source.CurrentSnapshot, Span.Create(5, 12));
for (int i = 5; i <= 12; i++)
{
Assert.AreEqual(lines[i], nav.PeekChar());
nav.Advance();
}
Assert.AreEqual(TextNavigator.EndCharacter, nav.PeekChar());
}