public void ParseAttributeTest()
{
//Parse tokens
MarkupParser markupParser = new MarkupParser(Init("#id1"));
Attribute parsedAttribute = markupParser.ParseAttribute();
//Check attribute
Assert.AreEqual(typeof(IdAttribute), parsedAttribute.GetType());
//Check id attribute
Assert.AreEqual("#id1", parsedAttribute.ToString());
}
public void ParseDesignatorWithAttributeTest()
{
//Parse tokens
MarkupParser markupParser = new MarkupParser(Init("img@100%50"));
Designator parsedDesignator = markupParser.ParseDesignator();
//Check designator
Assert.AreEqual("img", parsedDesignator.GetIdentifier());
Assert.AreEqual(1, parsedDesignator.GetAttributes().Count);
//Check attribute
Attribute parsedAttribute = (Attribute)parsedDesignator.GetAttributes().Get(0);
Assert.AreEqual(typeof(Width_HeightAttribute), parsedAttribute.GetType());
//Check Width_HeightAttribute contents
Width_HeightAttribute attribute = (Width_HeightAttribute)parsedAttribute;
Assert.AreEqual(100, attribute.GetWidth());
Assert.AreEqual(50, attribute.GetHeight());
}
/// <summary>
/// Parser for Attribute
/// </summary>
/// <returns>Parsed Attribute</returns>
public Attribute ParseAttribute()
{
CurrentToken = TokenStream.NextToken();
Attribute attribute = null;
switch (CurrentToken.GetValue().ToString())
{ //Determine different types of attributes
case "#": //Id attribute
attribute = ParseIdAttribute();
break;
case ".": //Class attribute
attribute = ParseClassAttribute();
break;
case "$": //Name attribute
attribute = ParseNameAttribute();
break;
case ":": //Type attribute
attribute = ParseTypeAttribute();
break;
case "@": //Width_(Height) attribute
if (TokenStream.Peek(2).GetValue().ToString() == "%")
{ //Width-Height attribute
attribute = ParseWidth_HeightAttribute();
}
else
{ //Only width attribute
attribute = ParseWidthAttribute();
}
break;
default:
throw new UnexpectedToken("Expected attribute, but found:", CurrentToken.GetValue().ToString(), CurrentToken.GetLine());
}
return(attribute);
}