String interpolation with nested quotes breaks Razor blocks.

[NTaylorMullen]

Today if you are to write the following:

@{
    $"abc{"123\""}.def";
}

You end up having a mismatch in curly braces. This is due to Razor not understanding the { syntax in string interpolation and therefore parsing the strings incorrectly.

[dougbu]

@NTaylorMullen is this bug a bit larger? In particular does Razor understand \" in a quoted string and does the following get parsed correctly?

@{
  var variable = "abc\"}.def";
}

[NTaylorMullen]

@dougbu Yup, Razor understands that. \" is understood when it thinks it's inside of a string 😄, that's why string interpolation sends it for a loop.

[NTaylorMullen]

Starting work on this to enable full support for: aspnet/Razor#338

[NTaylorMullen]

After investigating this issue further turns out the requirements to complete this are pretty high (need to understand C# close to entirety at the Tokenizer level). Will revisit this later.

[Eilon]

Moving to backlog because we feel these cases are not common in MVC views, and have trivial workarounds (e.g. use string.Format() instead of string interpolation).