Escape character `/` doesn't work in rescript 10 in `%raw` templates

[JasoonS]

Please see more details here: https://forum.rescript-lang.org/t/string-interpolations-in-raw/871/8?u=jasoons

Example:

%%raw(`
// look ma, regular JavaScript!
var message = \`\${"hello"}\`;
function greet(m) {
  console.log(m)
}
`)

In rescript 9 this produces:

// look ma, regular JavaScript!
var message = `${"hello"}`;
function greet(m) {
  console.log(m)
}

But in rescript >= 10 it produces:

// look ma, regular JavaScript!
var message = \`\${"hello"}\`;
function greet(m) {
  console.log(m)
}

You can reproduce this by adjusting the rescript version in the playground settings: https://rescript-lang.org/try?code=KTBOEMHcAoAMCgD0iAEAbA9hg1igtuADQqgCmA5gK5rigoBS4AbuAMoDGoAlgA4AuAQngs6eUgGdx4cqRQBeFAB1YigCQBvAEQALUmkyaAvsoDc8AGaUAduz5cMVlOTKk+0PAEoU6+ChTsHcQw0UgA6THJ3D3hDeFgPIA

[cknitt]

Hi! As the README says, the syntax repo is deprecated and new issues should be created in the compiler repo. I'll transfer your issue there.

[brettcannon]

I ran into this myself when trying to convert some JS code that had string interpolation via backticks. I had to unwind the string interpolation to proceed with the conversion to ReScript which was unfortunate (I added back once that chunk of code was ready to be rewritten in ReScript).

I also think the title of this issue meant to say \ and not /.

[joshgillies]

I'd say this issue needs to be called out in the following docs:

• https://rescript-lang.org/docs/manual/v11.0.0/embed-raw-javascript
• https://rescript-lang.org/docs/manual/v11.0.0/converting-from-js

I hit this immediately when trying to convert some existing code to ReScript.