Improve support for source(…) feature in v4

packages/tailwindcss-language-server/tests/document-links/document-links.test.js

@@ -130,4 +130,22 @@ withFixture('v4/basic', (c) => {
       },
     ],
   })
+
+  testDocumentLinks('Directories in source(…) show links', {
+    text: `
+      @import "tailwindcss" source("../../");
+      @tailwind utilities source("../../");
+    `,
+    lang: 'css',
+    expected: [
+      {
+        target: `file://${path.resolve('./tests/fixtures').replace(/@/g, '%40')}`,
+        range: { start: { line: 1, character: 35 }, end: { line: 1, character: 43 } },
+      },
+      {
+        target: `file://${path.resolve('./tests/fixtures').replace(/@/g, '%40')}`,
+        range: { start: { line: 2, character: 33 }, end: { line: 2, character: 41 } },
+      },
+    ],
+  })
 })

packages/tailwindcss-language-service/src/documentLinksProvider.ts

@@ -22,6 +22,8 @@ export function getDocumentLinks(
     patterns.push(
       /@plugin\s*(?<path>'[^']+'|"[^"]+")/g,
       /@source\s*(?<path>'[^']+'|"[^"]+")/g,
+      /@import\s*('[^']*'|"[^"]*")\s*source\((?<path>'[^']*'?|"[^"]*"?)/g,
+      /@tailwind\s*utilities\s*source\((?<path>'[^']*'?|"[^"]*"?)/g,
     )
   }