public void ValueTuple_Combine_6_Test()
{
var target = (_any, _any, _any, _any, _any, _any).Combine();
var input = new StringCharacterSequence("abcdefghi");
target.Parse(input).Value.Count.Should().Be(6);
}
public void ValueTuple_Produce_6_Test()
{
var target = (_any, _any, _any, _any, _any, _any).Rule((a, b, c, d, e, f) => $"{a}{b}{c}{d}{e}{f}");
var input = new StringCharacterSequence("abcdefghijklmn");
target.Parse(input).Value.Should().Be("abcdef");
}
public void GetRemainder_End()
{
var target = new StringCharacterSequence("abc");
target.GetNext();
target.GetNext();
target.GetNext();
target.GetRemainder().Should().Be("");
}
public void GetNext_Test()
{
var target = new StringCharacterSequence("abc");
target.GetNext().Should().Be('a');
target.GetNext().Should().Be('b');
target.GetNext().Should().Be('c');
target.GetNext().Should().Be('\0');
}
public void GetNext_OldMacNewlines()
{
var target = new StringCharacterSequence("\ra\r");
target.GetNext().Should().Be('\n');
target.GetNext().Should().Be('a');
target.GetNext().Should().Be('\n');
target.GetNext().Should().Be('\0');
}
public void GetNext_UnixNewlines()
{
var target = new StringCharacterSequence("\na\n");
target.GetNext().Should().Be('\n');
target.GetNext().Should().Be('a');
target.GetNext().Should().Be('\n');
target.GetNext().Should().Be('\0');
}
public void Parse_Test()
{
var target = Produce(() => 5);
var input = new StringCharacterSequence("abc");
var result = target.Parse(input);
result.Value.Should().Be(5);
result.Consumed.Should().Be(0);
}
public void Parse_Test()
{
var parser = Empty();
var input = new StringCharacterSequence("abc");
var result = parser.Parse(input);
result.Success.Should().BeTrue();
result.Value.Should().NotBeNull();
}
public void NotFollowedBy_Fail()
{
var parser = Match('[').NotFollowedBy(Match("~"));
var input = new StringCharacterSequence("[~test]");
var result = parser.Parse(input);
result.Success.Should().BeFalse();
result.Consumed.Should().Be(0);
}
public void Line_Test()
{
var parser = Line();
var input = new StringCharacterSequence(@"line
NOT LINE");
var result = parser.Parse(input);
result.Value.Should().Be("line");
}
public void Parse_Test()
{
var parser = Match(char.IsNumber);
var input = new StringCharacterSequence("123");
var result = parser.Parse(input);
result.Value.Should().Be('1');
result.Consumed.Should().Be(1);
}
public void ParseNext_Word()
{
var target = LexicalGrammar.GetParser();
var source = new StringCharacterSequence("test class @class");
target.Parse(source).Value.Should().Match(TokenType.Word, "test");
target.Parse(source).Value.Should().Match(TokenType.Word, "class");
target.Parse(source).Value.Should().Match(TokenType.Word, "@class");
}
public void Parse_Fail_Third()
{
var parser = Match("abc");
var input = new StringCharacterSequence("abXcd");
var result = parser.Parse(input);
result.Success.Should().BeFalse();
result.Consumed.Should().Be(0);
}
public void Parse_Fail()
{
var parser = Match(char.IsLetter);
var input = new StringCharacterSequence("123");
var result = parser.Parse(input);
result.Success.Should().BeFalse();
result.Consumed.Should().Be(0);
}
public void Output_Callback_Throw()
{
var parser = Any().Chain <char, char, object>(c => throw new System.Exception());
var input = new StringCharacterSequence("abc");
Action act = () => parser.Parse(input);
act.Should().Throw <Exception>();
input.GetNext().Should().Be('a');
}
public void ParseNext_IntegerDivideInteger()
{
var target = LexicalGrammar.GetParser();
var source = new StringCharacterSequence(@"1/2");
target.Parse(source).Value.Should().Match(TokenType.Integer, "1");
target.Parse(source).Value.Should().Match(TokenType.Operator, "/");
target.Parse(source).Value.Should().Match(TokenType.Integer, "2");
}
public void Parse_Exactly_TooFew()
{
var parser = List(Any(), 4, 4);
var input = new StringCharacterSequence("abc");
var result = parser.Parse(input);
result.Success.Should().BeFalse();
result.Consumed.Should().Be(0);
}
public void NotFollowedBy_Success()
{
var parser = Match('[').NotFollowedBy(Match("~"));
var input = new StringCharacterSequence("[test]");
var result = parser.Parse(input);
result.Value.Should().Be('[');
result.Consumed.Should().Be(1);
}
public void Peek_Test()
{
var target = Peek();
var input = new StringCharacterSequence("abc");
target.Parse(input).Value.Should().Be('a');
target.Parse(input).Value.Should().Be('a');
target.Parse(input).Value.Should().Be('a');
}
public void CharacterString_Test()
{
var parser = ParserMethods.CharacterString("abc");
var input = new StringCharacterSequence("abcd");
var result = parser.Parse(input);
result.Success.Should().BeTrue();
result.Value.Should().Be("abc");
result.Consumed.Should().Be(3);
}
public void Parse_Empty()
{
var parser = Match("");
var input = new StringCharacterSequence("abc");
var result = parser.Parse(input);
result.Success.Should().BeTrue();
result.Value.Count.Should().Be(0);
result.Consumed.Should().Be(0);
}
public void Parse_Success_ThenFail()
{
var parser = If(_successParser, _failParser, Produce(() => true));
var input = new StringCharacterSequence("abc");
var result = parser.Parse(input);
result.Success.Should().BeFalse();
input.Peek().Should().Be('a');
}
public void Parse_Fail_ThenSuccess()
{
var parser = If(_failParser, Any());
var input = new StringCharacterSequence("abc");
var result = parser.Parse(input);
result.Success.Should().BeFalse();
result.Consumed.Should().Be(0);
}
public void Parse_Success_Fail()
{
var parser = And(_anyParser, _failParser);
var input = new StringCharacterSequence("abc");
var result = parser.Parse(input);
result.Success.Should().BeFalse();
result.Consumed.Should().Be(0);
}
public IJsonValue Deserialize(string json)
{
var input = new StringCharacterSequence(json);
var lexer = JsonLexer.CreateParser();
var tokens = lexer.ToSequence(input).Select(r => r.Value);
var parser = JsonGrammar.CreateParser();
var result = parser.Parse(tokens);
return(result.Success ? result.Value : null);
}
public void NotExtension_Parse_Fail()
{
var parser = _failParser.Not();
var input = new StringCharacterSequence("abc");
var result = parser.Parse(input);
result.Success.Should().BeTrue();
result.Consumed.Should().Be(0);
}
private void RegexTestFail(string pattern, string input)
{
var sequence = new StringCharacterSequence(input);
var parser = Regex(pattern);
var result = parser.Parse(sequence);
result.Success.Should().BeFalse();
result.Consumed.Should().Be(0);
sequence.Consumed.Should().Be(0);
}
/// <summary>
/// Convenience method for parsers which act on character sequences. Attempts a parse but
/// does not consume any input. Returns true if the parse would succeed, false otherwise.
/// </summary>
/// <param name="parser"></param>
/// <param name="input"></param>
/// <param name="options"></param>
/// <returns></returns>
public static bool CanMatch(this IMultiParser <char> parser, string input, StringCharacterSequence.Options options = default)
{
// Don't need to .Checkpoint()/.Rewind() because the sequence is private and we don't
// reuse it
var sequence = new StringCharacterSequence(input, options);
var state = new ParseState <char>(sequence, Defaults.LogMethod);
var result = parser.Parse(state);
return(result.Success);
}
public void Parse_None()
{
var parser = List(Match(char.IsNumber));
var input = new StringCharacterSequence("abc");
var result = parser.Parse(input);
result.Success.Should().BeTrue();
result.Value.Count().Should().Be(0);
result.Consumed.Should().Be(0);
}
public void Any_Test()
{
var target = Any();
var input = new StringCharacterSequence("abc");
target.Parse(input).Value.Should().Be('a');
target.Parse(input).Value.Should().Be('b');
target.Parse(input).Value.Should().Be('c');
target.Parse(input).Success.Should().BeFalse();
}