feat: add toPath

src/index.ts

@@ -1,4 +1,3 @@
-export { default as Disposer } from './Disposer'
 export { default as base64Decode } from './base64Decode'
 export { default as base64Encode } from './base64Encode'
 export { default as base64UrlDecode } from './base64UrlDecode'
@@ -8,6 +7,7 @@ export { default as castArray } from './castArray'
 export { default as clamp } from './clamp'
 export { default as cssTransform } from './cssTransform'
 export { default as currencyFormat } from './currencyFormat'
+export { default as Disposer } from './Disposer'
 export { default as fill } from './fill'
 export { default as forOwn } from './forOwn'
 export { default as getType } from './getType'
@@ -49,5 +49,6 @@ export { default as stopEventPropagation } from './stopEventPropagation'
 export { default as storage } from './storage'
 export { default as supportPassiveEventListener } from './supportPassiveEventListener'
 export { default as toDate } from './toDate'
+export { default as toPath } from './toPath'
 export { default as upperCaseFirst } from './upperCaseFirst'
 export { default as values } from './values'

src/toPath.ts

@@ -0,0 +1,33 @@
+const cache = Object.create(null)
+
+/**
+ * 转化 `value` 为属性路径的数组 。
+ *
+ * @param value 要转换的值
+ * @returns 包含属性路径的数组
+ */
+export default function toPath(value: string): string[] {
+  const path: string[] = []
+  for (
+    let prev = 0, cur = 0, stop = null, len = value.length;
+    cur < len;
+  ) {
+    const curChar = value[cur]
+    if (
+      (cur === len - 1) ||
+      (stop === null ? (curChar === '.' || curChar === '[') : curChar === stop)
+    ) {
+      if (cur === len - 1) {
+        path.push(value.substring(prev, curChar === ']' ? cur : cur + 1))
+      } else if (prev !== cur) {
+        path.push(value.substring(prev, cur))
+      }
+      stop = curChar === '.' ? null :
+        curChar === '[' ? ']' :
+        null
+      prev = cur + 1
+    }
+    cur++
+  }
+  return path
+}

test/index.test.ts

@@ -935,3 +935,11 @@ describe('toDate', () => {
     })
   })
 })
+
+describe('toPath', () => {
+  test('ok', () => {
+    expect(vtils.toPath('ss.dee.3.dew.22')).toEqual(['ss', 'dee', '3', 'dew', '22'])
+    expect(vtils.toPath('ss.dee[3].dew.22[we]')).toEqual(['ss', 'dee', '3', 'dew', '22', 'we'])
+    expect(vtils.toPath('dee[3.2][hello.333]')).toEqual(['dee', '3.2', 'hello.333'])
+  })
+})