/// <summary>
/// パースを行います。
/// </summary>
/// <param name="src"></param>
/// <returns></returns>
protected override ResultCore <char> DoParse(Reader src)
{
var ch = src.Peek();
var res = _original.Parse(src);
return(res.Successful ? Success((char)ch) : Failure(res.Message));
}
public void ParseAsyncは内部パーサーと同じように失敗します()
{
var cursol = new Cursol("public");
var parser = new CharParser('a');
var tested = new RecursiveParser <char>(() => parser);
(tested.Parse(cursol)).IsStructuralEqual(parser.Parse(cursol));
}
public void ParseAsyncは内部パーサーと同じように成功します()
{
var cursol = new Cursol("public");
var parser = new CharParser('p');
var tested = new DebugParser <char>(parser, () => { });
(tested.Parse(cursol)).IsStructuralEqual(parser.Parse(cursol));
}
public void ParseAsyncはIgnoreCaseでない場合に大文字指定の場合に小文字を区別します()
{
var cursol = new Cursol("public");
var tested = new CharParser('P');
var(isSuccess, _, _) = tested.Parse(cursol);
isSuccess.IsFalse();
}
public void ParseAsyncはIgnoreCaseで大文字指定でも小文字を識別します()
{
var cursol = new Cursol("public");
var tested = new CharParser('P', true);
var(isSuccess, _, _) = tested.Parse(cursol);
isSuccess.IsTrue();
}
public void ParseAsyncは読み込みに成功した場合にその分進んだカーソルを返します()
{
var cursol = new Cursol("public");
var tested = new CharParser('p');
var result = tested.Parse(cursol);
result.cursol.Index.Is(1);
}
public void ParseAsyncは指定していない文字を読み込みに失敗します()
{
var cursol = new Cursol("internal");
var tested = new CharParser('p');
var result = tested.Parse(cursol);
result.isSuccess.IsFalse();
}
public void ParseAsyncは指定した文字を読み込みます()
{
var cursol = new Cursol("public");
var tested = new CharParser('p');
var result = tested.Parse(cursol);
result.parsed.Is('p');
}
public void ParseAsyncは指定した文字を読み込みに成功します()
{
var cursol = new Cursol("public");
var tested = new CharParser('p');
var result = tested.Parse(cursol);
result.isSuccess.IsTrue();
}
public void ParseAsyncはIgnoreCaseで大文字指定の場合に実際に識別した文字を結果とします()
{
var cursol = new Cursol("public");
var tested = new CharParser('P', true);
var(_, _, parsed) = tested.Parse(cursol);
parsed.Is('p');
}
public void FailParse()
{
IScanner scanner = Provider.Scanner;
CharParser parser = Prims.CharOf(NonMatchedChar);
ParserMatch m = parser.Parse(scanner);
Assert.IsTrue(!m.Success);
Assert.AreEqual(scanner.Offset, 0);
}
public void SuccessParse()
{
IScanner scanner = Provider.Scanner;
CharParser parser = Prims.CharOf(MatchedChar);
ParserMatch m = parser.Parse(scanner);
Assert.IsTrue(m.Success);
Assert.AreEqual(m.Offset, 0);
Assert.AreEqual(m.Length, 1);
Assert.AreEqual(scanner.Offset, 1);
}
public ParserError(ParserMatch noMatch, string errorId, string errorMessage)
{
if (errorId == null)
{
throw new ArgumentNullException("errorId");
}
if (errorMessage == null)
{
throw new ArgumentNullException("errorMessage");
}
long errorOffset = noMatch.Offset + noMatch.Length;
IScanner scanner = noMatch.Scanner;
long originalOffset = scanner.Offset;
long lastLineOffset = 0;
scanner.Offset = 0;
Parser eol = Prims.Eol;
Parser notEol = new CharParser(delegate(Char c)
{
return(c != '\r' && c != '\n');
});
_line = 1; // 1 based not 0 based
while (!scanner.AtEnd)
{
notEol.Parse(scanner);
if (scanner.AtEnd)
{
break;
}
ParserMatch match = eol.Parse(scanner);
if (scanner.Offset > errorOffset)
{
break;
}
if (match.Success)
{
++_line;
lastLineOffset = scanner.Offset;
}
}
_column = errorOffset - lastLineOffset + 1; // 1 based not 0 based
scanner.Offset = originalOffset;
_errorText = errorMessage;
_errorId = errorId;
}
public static Either <TLeft, char> ParseToChar <TLeft>(this string source, TLeft left)
{
return(CharParser.Parse(source, left));
}
public static Either <TLeft, char> ParseToChar <TLeft>(this Either <TLeft, string> source, TLeft left)
{
return(source.FlatMap(x => CharParser.Parse(x, left)));
}
public static Maybe <char> ParseToChar(this string source)
{
return(CharParser.Parse(source));
}