/// <summary>
/// Obtém um leitor de símbolos a partir do texto que representa o padrão.
/// </summary>
/// <param name="pattern">O padrão.</param>
/// <returns>O leitor de símbolos.</returns>
private SimpleTextSymbolReader <ELambdaExpressionWordType> GetPatternReader(
string pattern)
{
var innerPattern = pattern == null ? string.Empty : pattern;
var reader = new StringReader(pattern);
var charSymbolReader = new CharSymbolReader <ELambdaExpressionWordType>(
reader,
ELambdaExpressionWordType.OTHER,
ELambdaExpressionWordType.EOF);
charSymbolReader.RegisterCharRangeType('a', 'z', ELambdaExpressionWordType.ALPHA);
charSymbolReader.RegisterCharRangeType('A', 'Z', ELambdaExpressionWordType.ALPHA);
charSymbolReader.RegisterCharRangeType('0', '9', ELambdaExpressionWordType.NUMERIC);
charSymbolReader.RegisterCharType('(', ELambdaExpressionWordType.OPEN_PARENTHESIS);
charSymbolReader.RegisterCharType('"', ELambdaExpressionWordType.DELIMITER);
charSymbolReader.RegisterCharType(')', ELambdaExpressionWordType.CLOSE_PARENTHESIS);
charSymbolReader.RegisterCharType(',', ELambdaExpressionWordType.COMMA);
charSymbolReader.RegisterCharType(' ', ELambdaExpressionWordType.SPACE);
charSymbolReader.RegisterCharType('\r', ELambdaExpressionWordType.SPACE);
charSymbolReader.RegisterCharType('\n', ELambdaExpressionWordType.SPACE);
var result = new SimpleTextSymbolReader <ELambdaExpressionWordType>(
charSymbolReader,
ELambdaExpressionWordType.EOF);
result.SetGroupCount(ELambdaExpressionWordType.DELIMITER, 1);
result.SetGroupCount(ELambdaExpressionWordType.OPEN_PARENTHESIS, 1);
result.SetGroupCount(ELambdaExpressionWordType.CLOSE_PARENTHESIS, 1);
result.SetGroupCount(ELambdaExpressionWordType.COMMA, 1);
return(result);
}
public void Get_Test()
{
var testString = "Amanhã. Tempo...\n\n\nNão! Porquê?";
TextReader reader = new StringReader(testString);
var endOfFileSymbType = "eof";
var charSymbolReader = new CharSymbolReader <string>(reader, "desconhecido", "final");
charSymbolReader.RegisterCharRangeType('a', 'z', "palavra");
charSymbolReader.RegisterCharRangeType('A', 'Z', "palavra");
charSymbolReader.RegisterCharType('ã', "palavra");
charSymbolReader.RegisterCharType('ê', "palavra");
charSymbolReader.RegisterCharType('.', "pontuação");
charSymbolReader.RegisterCharType('!', "pontuação");
charSymbolReader.RegisterCharType('?', "pontuação");
charSymbolReader.RegisterCharType('\n', "brancos");
charSymbolReader.RegisterCharType(' ', "brancos");
var target = new SimpleTextSymbolReader <string>(
charSymbolReader,
endOfFileSymbType,
StringComparer.InvariantCultureIgnoreCase);
// Todos os símbolos que se espera encontrar na expressão de acordo com a configuração.
var expectedSymbols = new GeneralSymbol <string, string>[] {
new GeneralSymbol <string, string>()
{
SymbolValue = "Amanhã", SymbolType = "palavra"
},
new GeneralSymbol <string, string>()
{
SymbolValue = ".", SymbolType = "pontuação"
},
new GeneralSymbol <string, string>()
{
SymbolValue = " ", SymbolType = "brancos"
},
new GeneralSymbol <string, string>()
{
SymbolValue = "Tempo", SymbolType = "palavra"
},
new GeneralSymbol <string, string>()
{
SymbolValue = "...", SymbolType = "pontuação"
},
new GeneralSymbol <string, string>()
{
SymbolValue = "\n\n\n", SymbolType = "brancos"
},
new GeneralSymbol <string, string>()
{
SymbolValue = "Não", SymbolType = "palavra"
},
new GeneralSymbol <string, string>()
{
SymbolValue = "!", SymbolType = "pontuação"
},
new GeneralSymbol <string, string>()
{
SymbolValue = " ", SymbolType = "brancos"
},
new GeneralSymbol <string, string>()
{
SymbolValue = "Porquê", SymbolType = "palavra"
},
new GeneralSymbol <string, string>()
{
SymbolValue = "?", SymbolType = "pontuação"
}
};
for (int i = 0; i < expectedSymbols.Length; ++i)
{
var expected = expectedSymbols[i];
var actual = target.Get();
Assert.AreEqual(expected.SymbolValue, actual.SymbolValue);
Assert.AreEqual(expected.SymbolType, actual.SymbolType);
}
// Verifica se não existem mais símbolos a serem lidos.
Assert.IsTrue(target.IsAtEOF());
}