Updated README

README.en.md

@@ -12,7 +12,8 @@ Its interpreter is written in Python3. The interpreter translates a program writ
 - Pattern matching / Data types, like algebraic data types
 - Pipeline operator
 - Syntax sugar of anonymous function definition
-- Actor, like Erlang's actor（using Eventlet)
+- Actor, like the actor of Erlang（using Eventlet)
+- Macro, like the traditional macro of Lisp
 - Built-in Python3 itertools and functools, operator module functions and function in itertools recipes
 
 
@@ -82,6 +83,22 @@ def hello():
 app.run()
 ```
 
+### aif
+```
+macro aif(test, true_expr, false_expr):
+    quasi_quote:
+        it = unquote(test)
+        if it:
+            unquote(true_expr)
+        else:
+            unquote(false_expr)
+
+print(aif([], first(it), "empty"))
+# => "empty"
+print(aif([10, 20], first(it), "empty"))
+# => 10
+```
+
 ## Requirements
 - CPython >= 3.2 or PyPy >= 3.2.1
 - rply >= 0.7.2

README.ja.md

@@ -19,6 +19,7 @@ Python3のAST/バイトコードに変換し、Python仮想マシン上で実行
 - パイプライン演算子
 - 無名関数定義のシンタックスシュガー
 - Erlangに似たアクター(Eventletベース）
+- Lispの伝統的マクロと似たマクロ
 - Python3のitertools、functools、operatorモジュールの関数とitertoolsレシピの関数が組み込み
 
 
@@ -93,6 +94,22 @@ def hello():
 app.run()
 ```
 
+### aif
+```
+macro aif(test, true_expr, false_expr):
+    quasi_quote:
+        it = unquote(test)
+        if it:
+            unquote(true_expr)
+        else:
+            unquote(false_expr)
+
+print(aif([], first(it), "empty"))
+# => "empty"
+print(aif([10, 20], first(it), "empty"))
+# => 10
+```
+
 ## 依存モジュール
 - CPython >= 3.2 or PyPy >= 3.2.1 
 - rply >= 0.7.2

README.md

@@ -12,7 +12,8 @@ Its interpreter is written in Python3. The interpreter translates a program writ
 - Pattern matching / Data types, like algebraic data types
 - Pipeline operator
 - Syntax sugar of anonymous function definition
-- Actor, like Erlang's actor（using Eventlet)
+- Actor, like the actor of Erlang（using Eventlet)
+- Macro, like the traditional macro of Lisp
 - Built-in Python3 itertools and functools, operator module functions and function in itertools recipes
 
 
@@ -83,6 +84,22 @@ def hello():
 app.run()
 ```
 
+### aif
+```
+macro aif(test, true_expr, false_expr):
+    quasi_quote:
+        it = unquote(test)
+        if it:
+            unquote(true_expr)
+        else:
+            unquote(false_expr)
+
+print(aif([], first(it), "empty"))
+# => "empty"
+print(aif([10, 20], first(it), "empty"))
+# => 10
+```
+
 ## Requirements
 - CPython >= 3.2 or PyPy >= 3.2.1
 - rply >= 0.7.2

README.rst

@@ -19,7 +19,8 @@ Features
 -  Pattern matching / Data types, like algebraic data types
 -  Pipeline operator
 -  Syntax sugar of anonymous function definition
--  Actor, like Erlang's actor（using Eventlet)
+-  Actor, like the actor of Erlang（using Eventlet)
+-  Macro, like the traditional macro of Lisp
 -  Built-in Python3 itertools and functools, operator module functions
    and function in itertools recipes
 
@@ -100,6 +101,24 @@ Flask
 
     app.run()
 
+aif
+~~~
+
+::
+
+    macro aif(test, true_expr, false_expr):
+        quasi_quote:
+            it = unquote(test)
+            if it:
+                unquote(true_expr)
+            else:
+                unquote(false_expr)
+
+    print(aif([], first(it), "empty"))
+    # => "empty"
+    print(aif([10, 20], first(it), "empty"))
+    # => 10
+
 Requirements
 ------------
 

examples/aif.mochi

@@ -6,5 +6,5 @@ macro aif(test, true_expr, false_expr):
         else:
             unquote(false_expr)
 
-print(aif(contains([10, 20, 30], 10), it / 2, it))
-print(aif(contains([10, 20, 30], 100), it / 2 , it))
+print(aif([], first(it), "empty"))
+print(aif([10, 20], first(it), "empty"))