From ca55c2d976771f06b292819cfc8227b43f3a6336 Mon Sep 17 00:00:00 2001
From: Jordan Pittman <jordan@cryptica.me>
Date: Thu, 28 Aug 2025 17:35:04 -0400
Subject: [PATCH 1/2] Handle quote escapes in LESS when sorting `@apply`
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It’s perfect since the AST doesn’t actually have information on these (it’s just strings) but this should be good enough.
---
 src/index.ts   | 21 ++++++++++++++++++++-
 tests/tests.ts |  2 +-
 2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/src/index.ts b/src/index.ts
index 933d3ea..8d75911 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -810,7 +810,24 @@ function transformCss(ast: any, { env }: TransformerContext) {
         node.params,
       )
 
-      node.params = sortClasses(node.params, {
+      let classList = node.params
+
+      let prefix = ''
+      let suffix = ''
+
+      if (classList.startsWith('~"') && classList.endsWith('"')) {
+        prefix = '~"'
+        suffix = '"'
+        classList = classList.slice(2, -1)
+        isImportant = false
+      } else if (classList.startsWith("~'") && classList.endsWith("'")) {
+        prefix = "~'"
+        suffix = "'"
+        classList = classList.slice(2, -1)
+        isImportant = false
+      }
+
+      classList = sortClasses(classList, {
         env,
         ignoreLast: isImportant,
         collapseWhitespace: {
@@ -818,6 +835,8 @@ function transformCss(ast: any, { env }: TransformerContext) {
           end: !isImportant,
         },
       })
+
+      node.params = `${prefix}${classList}${suffix}`
     }
   })
 }
diff --git a/tests/tests.ts b/tests/tests.ts
index b85b93e..f4f8be5 100644
--- a/tests/tests.ts
+++ b/tests/tests.ts
@@ -266,7 +266,7 @@ export let tests: Record<string, TestEntry[]> = {
     t`@apply ${yes} #{'''!important'''};`,
     t`@apply ${yes} #{"'"'"!important"'"'"};`,
   ],
-  less: [...css, t`@apply ${yes} !important;`],
+  less: [...css, t`@apply ${yes} !important;`, t`@apply ~"${yes}";`, t`@apply ~'${yes}';`],
   babel: javascript,
   typescript: javascript,
   'babel-ts': javascript,

From b7a89c58fd6aeb8b0a559fcc80b7216ac5bbd09c Mon Sep 17 00:00:00 2001
From: Jordan Pittman <jordan@cryptica.me>
Date: Thu, 28 Aug 2025 17:36:39 -0400
Subject: [PATCH 2/2] Update changelog

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6f4444d..ea5d80d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Format quotes in `@source`, `@plugin`, and `@config` ([#387](https://github.com/tailwindlabs/prettier-plugin-tailwindcss/pull/387))
 - Support sorting in callable template literals ([#367](https://github.com/tailwindlabs/prettier-plugin-tailwindcss/pull/367))
 - Support sorting in function calls mixed with property accesses ([#367](https://github.com/tailwindlabs/prettier-plugin-tailwindcss/pull/367))
+- Handle quote escapes in LESS when sorting `@apply` ([#392](https://github.com/tailwindlabs/prettier-plugin-tailwindcss/pull/392))
 
 ## [0.6.14] - 2025-07-09