Question: implicit template strings concatenation

[un-def]

Experimenting with the syntax, I discovered that adjacent template string literals are implicitly concatenated:

ucode -Sp '`foo``bar` === "foobar"'
true

Whitespaces between literals are ignored:

ucode -Sp '`foo`
`bar` `baz`'
foobarbaz

This only works with template strings, not single- or double-quoted strings or a mix of the former and the latter.

This doesn't seem to be a part of the ECMAScript syntax (at least this doesn't work with V8 and SpiderMonkey), which ucode is inspired by, and is not documented in the ucode documentation.

I'd like to use this as a feature (see below), but not sure if this is actually a stable feature and not a quirk.

const command = (
    `long`
    ` string`
    ` literal`
)

ucode version I use: v0.0.20250529

[jow-]

It feels like an unintentional feature due to a sloppy parser implementation. Will look further into it tonight.

Update: it definitely is a bug, I recommend to use this instead to stay forward compatible:

const command =
    `long` +
    ` string` +
    ` literal`
;