fix(input-number): the problem that the negative sign is replaced when the negative sign is entered (#6281)

Co-authored-by: 07akioni <07akioni2@gmail.com>

CHANGELOG.en-US.md

@@ -7,6 +7,7 @@
 ### Fixes
 
 - Fix `n-time-picker`'s `use-12-hours` type error warning, closes [#4308](https://github.com/tusen-ai/naive-ui/issues/4308)
+- Fix `input-number` the problem that the negative sign is replaced when the negative sign is entered
 
 ### Features
 

CHANGELOG.zh-CN.md

@@ -7,6 +7,7 @@
 ### Fixes
 
 - `n-time-picker` 的 `use-12-hours` 类型错误警告，关闭 [#4308](https://github.com/tusen-ai/naive-ui/issues/4308)
+- 修复 `input-number` 存在负号时被替换的问题
 
 ### Features
 

src/input-number/src/utils.ts

@@ -13,10 +13,12 @@ export function parse(value: string): number | null {
 
 // can be parsed to number but shouldn't be applied when inputing
 // when value includes `.`, ending with 0 and`.`, doesn't update, if 0 parse func will remove 0
+// allow negative sign
 export function isWipValue(value: string): boolean {
   return (
-    value.includes('.')
-    && (/^(-)?\d+.*(\.|0)$/.test(value) || /^\.\d+$/.test(value))
+    value === '-'
+    || (value.includes('.') && /^-?\d*\.?\d*$/.test(value))
+    || /^-?\d*$/.test(value)
   )
 }