fix: 修复 splitCode 在压缩模板字符串中保留转义空白导致类名匹配遗漏的问题，保证 mp-alipay 等产物的类名替换正常工作。

Author: sonofmagic

.changeset/patch-escaped-whitespace.md

@@ -0,0 +1,6 @@
+---
+'@weapp-tailwindcss/shared': patch
+weapp-tailwindcss: patch
+---
+
+修复 splitCode 在压缩模板字符串中保留转义空白导致类名匹配遗漏的问题，保证 mp-alipay 等产物的类名替换正常工作。

packages/shared/src/extractors/split.ts

@@ -9,11 +9,14 @@ export function isValidSelector(selector = ''): selector is string {
 // 可选实现：export const splitCode = (code: string) => [...new Set(code.split(/\\?[\s'"`;={}]+/g))].filter(isValidSelector)
 
 export function splitCode(code: string, allowDoubleQuotes = false) {
+  // 把压缩产物中的转义空白字符(\n \r \t)先还原成空格，避免被粘连到类名上
+  const normalized = code.includes('\\') ? code.replace(/\\[nrt]/g, ' ') : code
+
   // 参数 onlyWhiteSpace?: boolean
   // const regex = onlyWhiteSpace ? /[\s]+/ : /"|[\s]+/
   // 默认使用 /\s+/
   // 用于处理 Vue 的静态节点
   // 示例：|class="
   const splitter = allowDoubleQuotes ? /\s+/ : /\s+|"/
-  return code.split(splitter).filter(element => isValidSelector(element))
+  return normalized.split(splitter).filter(element => isValidSelector(element))
 }

packages/shared/test/extractors.test.ts

@@ -0,0 +1,38 @@
+import { describe, expect, it } from 'vitest'
+import { isValidSelector, splitCode } from '@/extractors'
+
+describe('splitCode extractor', () => {
+  it('splits on whitespace and drops empty selectors', () => {
+    expect(splitCode('  foo   bar  ')).toEqual(['foo', 'bar'])
+    expect(splitCode('"   "')).toEqual([])
+  })
+
+  it('normalises escaped whitespace in minified template literals', () => {
+    const code = 'border-b-[rgba(0,0,0,0.1)]\\ntext-base\\tfont-bold\\rtext-sm'
+    expect(splitCode(code)).toEqual([
+      'border-b-[rgba(0,0,0,0.1)]',
+      'text-base',
+      'font-bold',
+      'text-sm',
+    ])
+  })
+
+  it('controls whether double quotes are treated as splitters', () => {
+    const snippet = 'class="foo bar" data-test="baz"'
+    expect(splitCode(snippet)).toEqual(['class=', 'foo', 'bar', 'data-test=', 'baz'])
+    expect(splitCode(snippet, true)).toEqual(['class="foo', 'bar"', 'data-test="baz"'])
+  })
+})
+
+describe('isValidSelector', () => {
+  it('accepts selectors containing unicode and alphanumeric characters', () => {
+    expect(isValidSelector('边界')).toBe(true)
+    expect(isValidSelector('text-sm')).toBe(true)
+  })
+
+  it('rejects empty or punctuation-only inputs', () => {
+    expect(isValidSelector('')).toBe(false)
+    expect(isValidSelector('   ')).toBe(false)
+    expect(isValidSelector('""')).toBe(false)
+  })
+})

packages/shared/test/index.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from 'vitest'
-import { defuOverrideArray, groupBy, isMap, isRegexp, regExpTest, removeExt } from '@/index'
+import { defuOverrideArray, groupBy, isMap, isRegexp, noop, regExpTest, removeExt } from '@/index'
 
 describe('shared utils', () => {
   it('isRegexp correctly detects regular expressions', () => {
@@ -45,6 +45,8 @@ describe('shared utils', () => {
     expect(removeExt('archive.tar.gz')).toBe('archive.tar')
     expect(removeExt('noext')).toBe('noext')
     expect(removeExt('')).toBe('')
+    expect(removeExt('file.')).toBe('file')
+    expect(removeExt('.hidden/file')).toBe('.hidden/file')
   })
 
   it('defuOverrideArray replaces array values instead of merging them', () => {
@@ -70,5 +72,26 @@ describe('shared utils', () => {
     expect(withFallback.include).toEqual(['**/*.wxml', '**/*.wxss'])
     expect(withFallback.nested.matchers).toEqual(['**/*.js'])
     expect(withFallback.flag).toBe(true)
+
+    const mixedTypes = defuOverrideArray({ include: '**/*.swan' } as any, defaults)
+    expect(mixedTypes.include).toBe('**/*.swan')
+  })
+
+  it('groupBy validates inputs', () => {
+    expect(() => groupBy(null as unknown as string[], () => 'a')).toThrowError(/expected an array/i)
+    expect(() => groupBy([], null as any)).toThrowError(/expected a function/i)
+  })
+
+  it('regExpTest resets regex lastIndex and ignores unsupported entries', () => {
+    const regex = /foo/g
+    regex.lastIndex = 12
+    expect(regExpTest([regex], 'foo')).toBe(true)
+    expect(regex.lastIndex).not.toBe(12)
+
+    expect(regExpTest([123 as any, {} as any], 'foo')).toBe(false)
+  })
+
+  it('noop returns undefined without side effects', () => {
+    expect(noop()).toBeUndefined()
   })
 })

packages/weapp-tailwindcss/test/extractors.test.ts

@@ -36,6 +36,9 @@ describe('extractorSplit', () => {
     const res = extract()
     expect(res.length).toBe(6)
 
+    code = 'border-b-[rgba(0,0,0,0.1)]\\ntext-base\\tfont-bold'
+    expect(extract()).toEqual(['border-b-[rgba(0,0,0,0.1)]', 'text-base', 'font-bold'])
+
     code
       = '<view class="p-[20px] -mt-2 mb-[-20px]">p-[20px] -mt-2 mb-[-20px] margin的jit 不能这么写 -m-[20px]</view><view class="space-y-[1.6rem]"><view class="w-[300rpx] text-black text-opacity-[0.19]">w-[300rpx] text-black text-opacity-[0.19]</view><view class="min-w-[300rpx] max-h-[100px] text-[20px] leading-[0.9]">min-w-[300rpx] max-h-[100px] text-[20px] leading-[0.9]</view><view class="max-w-[300rpx] min-h-[100px] text-[#dddddd]">max-w-[300rpx] min-h-[100px] text-[#dddddd]</view><view class="flex items-center justify-center h-[100px] w-[100px] rounded-[40px] bg-[#123456] bg-opacity-[0.54] text-[#ffffff]"> Hello</view><view class="border-[10px] border-[#098765] border-solid border-opacity-[0.44]">border-[10px] border-[#098765] border-solid border-opacity-[0.44]</view><view class="grid grid-cols-3 divide-x-[10px] divide-[#010101] divide-solid"><view>1</view><view>2</view><view>3</view></view><view class="w-32 py-2 rounded-md font-semibold text-white bg-pink-500 ring-4 ring-pink-300"> Default </view></view><view class="test">test</view>'
     const res0 = extract()