public void Parse_InputIsEmpty()
{
//Act
var target = new TextTokenParser("{", "}");
var actual = target.Parse("").ToList();
//Assert
actual.Should().BeEmpty();
}
public void Parse_StartDelimiterAtEndOfInput()
{
//Arrange
var input = "Begin <";
var target = new TextTokenParser("<", ">");
var expected = new TextTokenInfo[] {
new TextTokenInfo(TextTokenKind.Text, "Begin <", 0)
};
//Act
var actual = target.Parse(input).ToList();
//Assert
actual.Should().ContainInOrder(expected);
}
public void Parse_EndDelimiterWithNoStart()
{
//Arrange
var input = "Begin first> End";
var target = new TextTokenParser("<", ">");
var expected = new TextTokenInfo[] {
new TextTokenInfo(TextTokenKind.Text, input, 0)
};
//Act
var actual = target.Parse(input).ToList();
//Assert
actual.Should().ContainInOrder(expected);
}
public void Parse_NoDelimitedText()
{
//Arrange
var input = "Some text";
var expected = new TextTokenInfo[] {
new TextTokenInfo(TextTokenKind.Text, "Some text", 0)
};
var target = new TextTokenParser("{", "}");
//Act
var actual = target.Parse(input).ToList();
//Assert
actual.Should().ContainInOrder(expected);
}
public void Parse_DelimiterHasMultipleCharacters()
{
//Arrange
var input = "Begin <!-- comment -->";
var target = new TextTokenParser("<!--", "-->");
var expected = new TextTokenInfo[] {
new TextTokenInfo(TextTokenKind.Text, "Begin ", 0),
new TextTokenInfo(TextTokenKind.DelimitedText, " comment ", 6)
};
//Act
var actual = target.Parse(input).ToList();
//Assert
actual.Should().ContainInOrder(expected);
}
public void Parse_DelimiterAtStart()
{
//Arrange
var input = "<first> End";
var target = new TextTokenParser("<", ">");
var expected = new TextTokenInfo[] {
new TextTokenInfo(TextTokenKind.DelimitedText, "first", 0),
new TextTokenInfo(TextTokenKind.Text, " End", 7)
};
//Act
var actual = target.Parse(input).ToList();
//Assert
actual.Should().ContainInOrder(expected);
}
public void Parse_SpacesAtFront()
{
//Arrange
var input = " Begin <target> End";
var target = new TextTokenParser("<", ">");
var expected = new TextTokenInfo[] {
new TextTokenInfo(TextTokenKind.Text, " Begin ", 0),
new TextTokenInfo(TextTokenKind.DelimitedText, "target", 10),
new TextTokenInfo(TextTokenKind.Text, " End", 18)
};
//Act
var actual = target.Parse(input).ToList();
//Assert
actual.Should().ContainInOrder(expected);
}
public void Parse_TooManyEndDelimiters()
{
//Arrange
var input = "Begin <4 > 5> End";
var target = new TextTokenParser("<", ">");
var expected = new TextTokenInfo[] {
new TextTokenInfo(TextTokenKind.Text, "Begin ", 0),
new TextTokenInfo(TextTokenKind.DelimitedText, "4 ", 6),
new TextTokenInfo(TextTokenKind.Text, " 5> End", 10)
};
//Act
var actual = target.Parse(input).ToList();
//Assert
actual.Should().ContainInOrder(expected);
}
public void Parse_DelimitersSideBySide()
{
//Arrange
var input = "Begin <first><second> End";
var target = new TextTokenParser("<", ">");
var expected = new TextTokenInfo[] {
new TextTokenInfo(TextTokenKind.Text, "Begin ", 0),
new TextTokenInfo(TextTokenKind.DelimitedText, "first", 6),
new TextTokenInfo(TextTokenKind.DelimitedText, "second", 13),
new TextTokenInfo(TextTokenKind.Text, " End", 21)
};
//Act
var actual = target.Parse(input).ToList();
//Assert
actual.Should().ContainInOrder(expected);
}
/// <summary>Processes the inputValue string and returns the string with the substitution rules applied.</summary>
/// <param name="inputValue">The string to process.</param>
/// <returns>The processed string.</returns>
/// <remarks>
/// If <paramref name="inputValue"/> is <see langword="null"/> or empty then an empty string is returned.
/// </remarks>
/// <example>Refer to <see cref="TextSubstitutionEngine"/> for an example.</example>
public string Process(string inputValue)
{
if (String.IsNullOrWhiteSpace(inputValue))
{
return("");
}
var context = new TextSubstitutionProcessContext(m_options, inputValue);
BeginProcess(context);
//Enumerate the tokens
var parser = new TextTokenParser(StartDelimiter, EndDelimiter);
foreach (var tokenInfo in parser.Parse(inputValue))
{
ProcessToken(context, tokenInfo);
}
;
return(EndProcess(context));
}