Highlighting issue in VSCODE for string interpolation s2

[tiphdousset]

In VSCODE the highlighting for s2 string interpolation seems to be broken. See screenshots

[MaximeKjaer]

Good catch. I think the issue is that we use alphaId as the regex for the string interpolation tag, but we should probably use plainid.

A minimized example:

implicit class TestInterpolation(val sc: StringContext) extends AnyVal {
  def `this doesn't work`(args: Any*): String = "no"
  def test(args: Any*): String = "test"
  def test1(args: Any*): String = "test1"
  def test_+(args: Any*): String = "test_+"
}

val name = "world"

`this doesn't work`"hello $name" // this does not compile
test"hello $name"
test1"hello $name"
test_+"hello $name"

[som-snytt]

plainid in spec includes operators, which are not allowed. alphaid is not "only alphas" but idents starting with an alpha (upper or lower, distinguished for patterns).

TIL it accommodates idrest, the operator tail in test_+. I was recalling that you can't s"$x_+" which interpolates x_ not x_+.

So, you can't *"text" which is too bad because it looks cool.