[sergioazoc]

Follow-up to #216 (the request).

Summary

wrapStrings: "jsx" wraps a JSX attribute's own string in place. Every JS string kept reporting without a fix, because it can't hold a raw newline. People moving from eslint-plugin-better-tailwindcss want what it does there: when a JS string has to wrap, it becomes a template literal.

// options: { "classesPerLine": 3, "wrapStrings": "all" }
const card = cn("flex items-center justify-between p-4 m-2 bg-white")
// → const card = cn(`
//     flex items-center justify-between
//     p-4 m-2 bg-white
//   `)

• Where: wherever the string's place takes any expression. That means a call argument (cn("…")), className={"…"}, an array element, an object value (cva, tv), a ternary branch, a &&/|| operand, or a variable's value. These are the same places better-tailwindcss converts (checked in its 4.9.0 source). A JSX attribute's own string is still wrapped in place.
• Never: an object key or a + operand. Also never a string a template would read differently: its source between the quotes must equal its value (no escape sequence) and contain no backtick or ${. Those keep reporting. better-tailwindcss only escapes the backtick, so a ${ in a string becomes an interpolation there.
• The fix replaces the whole literal, quotes included, so meta.fixable is now 'code'. A CRLF file gets CRLF breaks.
• Opt-in: the string's value gains the newlines and the indentation. In a class list that's whitespace, but it matters where the string is used as something else. "jsx" and the default "never" are unchanged.

Test plan

• Rule: every place that converts, and the ones that don't. Also the base indent, CRLF, classesPerLine and both width fixers. Dropping the escape check, the backtick or ${ exclusion, or the object-key or + exclusion each fails a test.
• no-unnecessary-whitespace and enforce-consistent-line-wrapping contradict each other #14 cycle: no-unnecessary-whitespace and the rule itself stay silent on the converted block.
• oxfmt e2e: a helper's template block survives sortTailwindcss only with preserveWhitespace: true, like a JSX string's. Checked by hand first, then pinned.
• Docs: the rule page (EN/ES) with a ✗ example the docs test runs through oxlint, /interop (EN/ES), the better-tailwindcss migration row, CLAUDE.md and CHANGELOG.
• Lint, lint:types, format:check, typecheck, build and pnpm test (3811 + 312). pnpm -C packages/docs build: check-dist ok. Bench corpus and synthetic identical to the baselines.

🤖 Generated with Claude Code

https://claude.ai/code/session_019vTh6S5A41M1HLkmk3FaM1