fix(transform-rtl): preserve quotes in transformed className literals (#10495)

* fix(transform-rtl): preserve string literal escapes

* chore(changeset): add rtl quote preservation note

---------

Co-authored-by: shadcn <m@shadcn.com>

.changeset/proud-donuts-know.md

@@ -0,0 +1,5 @@
+---
+"shadcn": patch
+---
+
+Preserve quotes in className literals when applying RTL transforms.

packages/shadcn/src/utils/transformers/transform-rtl.ts

@@ -1,5 +1,6 @@
 import { Transformer } from "@/src/utils/transformers"
 import { Project, ScriptKind, SourceFile, SyntaxKind } from "ts-morph"
+import type { StringLiteral } from "ts-morph"
 
 import { splitClassName } from "./transform-css-vars"
 
@@ -130,12 +131,9 @@ function stripQuotes(str: string) {
 }
 
 // Transforms a string literal node by applying RTL mappings.
-function transformStringLiteralNode(node: {
-  getText(): string
-  replaceWithText(text: string): void
-}) {
-  const text = stripQuotes(node.getText() ?? "")
-  node.replaceWithText(`"${applyRtlMapping(text)}"`)
+function transformStringLiteralNode(node: StringLiteral) {
+  const text = node.getLiteralText()
+  node.setLiteralValue(applyRtlMapping(text))
 }
 
 export function applyRtlMapping(input: string) {

packages/shadcn/test/utils/transform-rtl.test.ts

@@ -1,4 +1,5 @@
 import { describe, expect, test } from "vitest"
+import ts from "typescript"
 
 import { transform } from "../../src/utils/transformers"
 import { applyRtlMapping } from "../../src/utils/transformers/transform-rtl"
@@ -349,6 +350,47 @@ export function Foo() {
     expect(result).toContain("text-start")
   })
 
+  test("escapes transformed string literals that contain double quotes", async () => {
+    const result = await transform({
+      filename: "test.tsx",
+      raw: String.raw`import * as React from "react"
+export function Foo() {
+  return <div className='ml-1 after:content-["\""]' />
+}
+`,
+      config: {
+        rtl: true,
+        tailwind: {
+          baseColor: "neutral",
+        },
+        aliases: {
+          components: "@/components",
+          utils: "@/lib/utils",
+        },
+      },
+    })
+
+    const sourceFile = ts.createSourceFile(
+      "test.tsx",
+      result,
+      ts.ScriptTarget.Latest,
+      true,
+      ts.ScriptKind.TSX
+    )
+    const stringLiterals: string[] = []
+
+    function visit(node: ts.Node) {
+      if (ts.isStringLiteral(node)) {
+        stringLiterals.push(node.text)
+      }
+      ts.forEachChild(node, visit)
+    }
+    visit(sourceFile)
+
+    expect(sourceFile.parseDiagnostics).toHaveLength(0)
+    expect(stringLiterals).toContain('ms-1 after:content-["\\""]')
+  })
+
   test("does not transform when rtl is false", async () => {
     const result = await transform({
       filename: "test.tsx",