Function: AcceptIf (#198)

AcceptIf returns another function of the same signature as the apply function but also includes a bool value to indicate success or failure.
A predicate function that takes an argument of type T and returns a bool.
An apply function that also takes an argument of type T and returns a modified value of the same type.

docs/api/packages/function.md

@@ -39,6 +39,8 @@ import (
 -   [Nor](#Nor)
 -   [Xnor](#Xnor)
 -   [Nand](#Nand)
+-   [AcceptIf](#AcceptIf)
+
 
 <div STYLE="page-break-after: always;"></div>
 
@@ -638,4 +640,55 @@ func main() {
     // true
     // false
 }
+```
+
+### <span id="AcceptIf">AcceptIf</span>
+
+<p>TBD</p>
+
+<b>函数签名:</b>
+
+```go
+func AcceptIf[T any](predicate func(T) bool, apply func(T) T) func(T) (T, bool)
+```
+
+<b>示例:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/function"
+)
+
+func main() {
+
+	adder := AcceptIf(
+		And(
+			func(x int) bool {
+				return x > 10
+			}, func(x int) bool {
+				return x%2 == 0
+			}),
+		func(x int) int {
+			return x + 1
+		},
+	)
+
+	result, ok := adder(20)
+	fmt.Println(result)
+	fmt.Println(ok)
+
+	result, ok = adder(21)
+	fmt.Println(result)
+	fmt.Println(ok)
+
+	// Output:
+	// 21
+	// true
+	// 0
+	// false
+}
+
 ```

docs/en/api/packages/function.md

@@ -39,6 +39,7 @@ import (
 -   [Nor](#Nor)
 -   [Xnor](#Xnor)
 -   [Nand](#Nand)
+-   [AcceptIf](#AcceptIf)
 
 <div STYLE="page-break-after: always;"></div>
 
@@ -638,4 +639,57 @@ func main() {
     // true
     // false
 }
+```
+
+### <span id="AcceptIf">AcceptIf</span>
+
+<p>AcceptIf returns another function of the same signature as the apply function but also includes a bool value to indicate success or failure. 
+A predicate function that takes an argument of type T and returns a bool.
+An apply function that also takes an argument of type T and returns a modified value of the same type.</p>
+
+<b>Signature:</b>
+
+```go
+func AcceptIf[T any](predicate func(T) bool, apply func(T) T) func(T) (T, bool)
+```
+
+<b>Example:</b>
+
+```go
+package main
+
+import (
+    "fmt"
+    "github.com/duke-git/lancet/v2/function"
+)
+
+func main() {
+
+	adder := AcceptIf(
+		And(
+			func(x int) bool {
+				return x > 10
+			}, func(x int) bool {
+				return x%2 == 0
+			}),
+		func(x int) int {
+			return x + 1
+		},
+	)
+
+	result, ok := adder(20)
+	fmt.Println(result)
+	fmt.Println(ok)
+
+	result, ok = adder(21)
+	fmt.Println(result)
+	fmt.Println(ok)
+
+	// Output:
+	// 21
+	// true
+	// 0
+	// false
+}
+
 ```