public void Parse_SingleLiteral()
{
// Arrange
var template = "cool";
var builder = RoutePatternBuilder.Create(template);
builder.AddPathSegmentFromText("cool", RoutePatternPart.CreateLiteralFromText("cool", "cool"));
var expected = builder.Build();
// Act
var actual = RoutePatternParser.Parse(template);
// Assert
Assert.Equal <RoutePattern>(expected, actual, new RoutePatternEqualityComparer());
}
public void Parse_ComplexSegment_ParametersFollowingPeriod()
{
// Arrange
var template = "{p1}.{p2}";
var builder = RoutePatternBuilder.Create(template);
builder.AddPathSegmentFromText(
"{p1}.{p2}",
RoutePatternPart.CreateParameterFromText("{p1}", "p1"),
RoutePatternPart.CreateLiteralFromText(".", "."),
RoutePatternPart.CreateParameterFromText("{p2}", "p2"));
var expected = builder.Build();
// Act
var actual = RoutePatternParser.Parse(template);
// Assert
Assert.Equal <RoutePattern>(expected, actual, new RoutePatternEqualityComparer());
}
public void Parse_ComplexSegment_LPL()
{
// Arrange
var template = "cool-{p1}-awesome";
var builder = RoutePatternBuilder.Create(template);
builder.AddPathSegmentFromText(
template,
RoutePatternPart.CreateLiteralFromText("cool-", "cool-"),
RoutePatternPart.CreateParameterFromText("{p1}", "p1"),
RoutePatternPart.CreateLiteralFromText("-awesome", "-awesome"));
var expected = builder.Build();
// Act
var actual = RoutePatternParser.Parse(template);
// Assert
Assert.Equal <RoutePattern>(expected, actual, new RoutePatternEqualityComparer());
}
private static bool ParseLiteral(TemplateParserContext context, List <RoutePatternPart> parts)
{
context.Mark();
while (true)
{
if (context.Current == Separator)
{
// End of the segment
break;
}
else if (context.Current == OpenBrace)
{
if (!context.MoveNext())
{
// This is a dangling open-brace, which is not allowed
context.Error = Resources.TemplateRoute_MismatchedParameter;
return(false);
}
if (context.Current == OpenBrace)
{
// This is an 'escaped' brace in a literal, like "{{foo" - keep going.
}
else
{
// We've just seen the start of a parameter, so back up.
context.Back();
break;
}
}
else if (context.Current == CloseBrace)
{
if (!context.MoveNext())
{
// This is a dangling close-brace, which is not allowed
context.Error = Resources.TemplateRoute_MismatchedParameter;
return(false);
}
if (context.Current == CloseBrace)
{
// This is an 'escaped' brace in a literal, like "{{foo" - keep going.
}
else
{
// This is an unbalanced close-brace, which is not allowed
context.Error = Resources.TemplateRoute_MismatchedParameter;
return(false);
}
}
if (!context.MoveNext())
{
break;
}
}
var encoded = context.Capture();
var decoded = encoded.Replace("}}", "}").Replace("{{", "{");
if (IsValidLiteral(context, decoded))
{
parts.Add(RoutePatternPart.CreateLiteralFromText(encoded, decoded));
return(true);
}
else
{
return(false);
}
}