fix: start of line not mangle bug

Author: sonofmagic

apps/vite-react/src/App.tsx

@@ -1,30 +1,84 @@
 import { useState } from 'react'
 import reactLogo from './assets/react.svg'
-import viteLogo from '/vite.svg'
+
 import './App.css'
 
 function App() {
   const [count, setCount] = useState(0)
 
   return (
-    <div className="App">
-      <div className="flex justify-between">
-        <a href="https://vitejs.dev" target="_blank">
-          <img src={viteLogo} className="logo" alt="Vite logo" />
+    <main className="flex min-h-screen flex-col items-center justify-between p-24">
+      <div className="z-10 w-full max-w-5xl items-center justify-between font-mono text-sm lg:flex">
+        <p className="fixed left-0 top-0 flex w-full justify-center border-b border-gray-300 bg-gradient-to-b from-zinc-200 pb-6 pt-8 backdrop-blur-2xl dark:border-neutral-800 dark:bg-zinc-800/30 dark:from-inherit lg:static lg:w-auto  lg:rounded-xl lg:border lg:bg-gray-200 lg:p-4 lg:dark:bg-zinc-800/30">
+          Get started by editing&nbsp;
+          <code className="font-mono font-bold">pages/index.tsx</code>
+        </p>
+        <div className="fixed bottom-0 left-0 flex h-48 w-full items-end justify-center bg-gradient-to-t from-white via-white dark:from-black dark:via-black lg:static lg:h-auto lg:w-auto lg:bg-none">
+          <a
+            className="pointer-events-none flex place-items-center gap-2 p-8 lg:pointer-events-auto lg:p-0"
+            href="https://vercel.com?utm_source=create-next-app&utm_medium=default-template-tw&utm_campaign=create-next-app"
+            target="_blank"
+            rel="noopener noreferrer"
+          >
+            By <img src="/vite.svg" alt="Vercel Logo" className="dark:invert" width={100} height={24} />
+          </a>
+        </div>
+      </div>
+
+      <div className="relative flex place-items-center before:absolute before:h-[300px] before:w-[480px] before:-translate-x-1/2 before:rounded-full before:bg-gradient-radial before:from-white before:to-transparent before:blur-2xl before:content-[''] after:absolute after:-z-20 after:h-[180px] after:w-[240px] after:translate-x-1/3 after:bg-gradient-conic after:from-sky-200 after:via-blue-200 after:blur-2xl after:content-[''] before:dark:bg-gradient-to-br before:dark:from-transparent before:dark:to-blue-700/10 after:dark:from-sky-900 after:dark:via-[#0141ff]/40 before:lg:h-[360px]">
+        <img className="relative dark:drop-shadow-[0_0_0.3rem_#ffffff70] dark:invert" src={reactLogo} alt="Next.js Logo" width={180} height={37} />
+      </div>
+
+      <div className="mb-32 grid text-center lg:mb-0 lg:grid-cols-4 lg:text-left">
+        <a
+          href="https://nextjs.org/docs?utm_source=create-next-app&utm_medium=default-template-tw&utm_campaign=create-next-app"
+          className="group rounded-lg border border-transparent px-5 py-4 transition-colors hover:border-gray-300 hover:bg-gray-100 hover:dark:border-neutral-700 hover:dark:bg-neutral-800/30"
+          target="_blank"
+          rel="noopener noreferrer"
+        >
+          <h2 className={` mb-3 text-2xl font-semibold`}>
+            Docs <span className="inline-block transition-transform group-hover:translate-x-1 motion-reduce:transform-none">-&gt;</span>
+          </h2>
+          <p className={` m-0 max-w-[30ch] text-sm opacity-50`}>Find in-depth information about Next.js features and API.</p>
         </a>
-        <a href="https://reactjs.org" target="_blank">
-          <img src={reactLogo} className="logo react" alt="React logo" />
+
+        <a
+          href="https://nextjs.org/learn?utm_source=create-next-app&utm_medium=default-template-tw&utm_campaign=create-next-app"
+          className="group rounded-lg border border-transparent px-5 py-4 transition-colors hover:border-gray-300 hover:bg-gray-100 hover:dark:border-neutral-700 hover:dark:bg-neutral-800/30"
+          target="_blank"
+          rel="noopener noreferrer"
+        >
+          <h2 className={` mb-3 text-2xl font-semibold`}>
+            Learn <span className="inline-block transition-transform group-hover:translate-x-1 motion-reduce:transform-none">-&gt;</span>
+          </h2>
+          <p className={` m-0 max-w-[30ch] text-sm opacity-50`}>Learn about Next.js in an interactive course with&nbsp;quizzes!</p>
+        </a>
+
+        <a
+          href="https://vercel.com/templates?framework=next.js&utm_source=create-next-app&utm_medium=default-template-tw&utm_campaign=create-next-app"
+          className="group rounded-lg border border-transparent px-5 py-4 transition-colors hover:border-gray-300 hover:bg-gray-100 hover:dark:border-neutral-700 hover:dark:bg-neutral-800/30"
+          target="_blank"
+          rel="noopener noreferrer"
+        >
+          <h2 className={` mb-3 text-2xl font-semibold`}>
+            Templates <span className="inline-block transition-transform group-hover:translate-x-1 motion-reduce:transform-none">-&gt;</span>
+          </h2>
+          <p className={` m-0 max-w-[30ch] text-sm opacity-50`}>Discover and deploy boilerplate example Next.js&nbsp;projects.</p>
+        </a>
+
+        <a
+          href="https://vercel.com/new?utm_source=create-next-app&utm_medium=default-template-tw&utm_campaign=create-next-app"
+          className="group rounded-lg border border-transparent px-5 py-4 transition-colors hover:border-gray-300 hover:bg-gray-100 hover:dark:border-neutral-700 hover:dark:bg-neutral-800/30"
+          target="_blank"
+          rel="noopener noreferrer"
+        >
+          <h2 className={` mb-3 text-2xl font-semibold`}>
+            Deploy <span className="inline-block transition-transform group-hover:translate-x-1 motion-reduce:transform-none">-&gt;</span>
+          </h2>
+          <p className={` m-0 max-w-[30ch] text-sm opacity-50`}>Instantly deploy your Next.js site to a shareable URL with Vercel.</p>
         </a>
       </div>
-      <h1 className="text-[#123456]">Vite + React</h1>
-      <div className="card bg-[#123456]">
-        <button onClick={() => setCount((count) => count + 1)}>count is {count}</button>
-        <p>
-          Edit <code>src/App.tsx</code> and save to test HMR
-        </p>
-      </div>
-      <p className="read-the-docs">Click on the Vite and React logos to learn more</p>
-    </div>
+    </main>
   )
 }
 

packages/unplugin-tailwindcss-mangle/README.md

@@ -2,7 +2,7 @@
 
 mangle tailwindcss utilities plugin
 
-> Now Support `vite` and `webpack`
+> Now Support `vite` and `webpack`(Experiment!)
 
 - [unplugin-tailwindcss-mangle](#unplugin-tailwindcss-mangle)
   - [Features](#features)

packages/unplugin-tailwindcss-mangle/src/js/index.ts

@@ -13,6 +13,10 @@ function getDefaultExportFromNamespaceIfPresent(n: any) {
 const generate = getDefaultExportFromNamespaceIfPresent(_generate) as typeof _generate
 const traverse = getDefaultExportFromNamespaceIfPresent(_traverse) as typeof _traverse
 
+export function makeRegex(str: string) {
+  return new RegExp('(?<=^|[\\s"])' + escapeStringRegexp(str), 'g')
+}
+
 export function handleValue(str: string, node: StringLiteral | TemplateElement, options: IHandlerOptions) {
   const set = options.runtimeSet
   const clsGen = options.classGenerator
@@ -27,7 +31,7 @@ export function handleValue(str: string, node: StringLiteral | TemplateElement,
       }
 
       if (!ignoreFlag) {
-        rawStr = rawStr.replace(new RegExp('(?<="|\\s)' + escapeStringRegexp(v), 'g'), clsGen.generateClassName(v).name)
+        rawStr = rawStr.replace(makeRegex(v), clsGen.generateClassName(v).name)
       }
     }
   }

packages/unplugin-tailwindcss-mangle/test/__snapshots__/js.test.ts.snap

@@ -6,3 +6,9 @@ exports[`js handler common TemplateElement 1`] = `
 "const counter = 0;
 element.innerHTML = \`<div class="tw-a tw-b">count is \${counter}</div>\`;"
 `;
+
+exports[`js handler z-10 not transform 1`] = `
+"{
+  className: "tw-a tw-b tw-c tw-d tw-e tw-f tw-g tw-h";
+}"
+`;

packages/unplugin-tailwindcss-mangle/test/__snapshots__/reg.test.ts.snap

@@ -0,0 +1,9 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`regex z-10 regex 1`] = `
+[
+  [
+    "z-10",
+  ],
+]
+`;

packages/unplugin-tailwindcss-mangle/test/js.test.ts

@@ -28,4 +28,21 @@ describe('js handler', () => {
     }).code
     expect(code).toMatchSnapshot()
   })
+
+  it('z-10 not transform', () => {
+    const classGenerator = new ClassGenerator()
+    const runtimeSet = new Set<string>()
+    const arr = 'z-10 w-full max-w-5xl items-center justify-between font-mono text-sm lg:flex'.split(' ')
+    for (let i = 0; i < arr.length; i++) {
+      const element = arr[i]
+      runtimeSet.add(element)
+    }
+
+    const testCase = `{ className: "z-10 w-full max-w-5xl items-center justify-between font-mono text-sm lg:flex" }`
+    const code = jsHandler(testCase, {
+      classGenerator,
+      runtimeSet
+    }).code
+    expect(code).toMatchSnapshot()
+  })
 })

packages/unplugin-tailwindcss-mangle/test/reg.test.ts

@@ -0,0 +1,11 @@
+// import { escapeStringRegexp } from '../src/utils'
+import { makeRegex } from '../src/js/index'
+describe('regex', () => {
+  it('z-10 regex', () => {
+    const testCase = 'z-10 w-full max-w-5xl items-center justify-between font-mono text-sm lg:flex'
+    const regex = makeRegex('z-10')
+    const arr = Array.from(testCase.matchAll(regex))
+    expect(arr.length).toBe(1)
+    expect(arr).toMatchSnapshot()
+  })
+})