Feat: tokens can operate with builtin int

mapytex/calculus/API/tokens/token.py

@@ -11,6 +11,7 @@ Tokens: practical envelop of math object
 
 """
 from ..renders import renders
+from ...core.MO.atoms import moify
 
 
 class Token(object):
@@ -26,7 +27,11 @@ class Token(object):
         self._ancestor = ancestor
 
     @classmethod
-    def random(cls):
+    def random(
+        cls,
+        family="integer",
+        **kwds
+    ):
         raise NotImplemented
 
     @classmethod
@@ -86,7 +91,10 @@ class Token(object):
         from . import factory
 
         if not isinstance(other, Token):
-            _other = factory(other)
+            try:
+                _other = factory(other)
+            except AttributeError:
+                _other = factory(Expression(moify(other)))
         else:
             _other = other
         tree = Tree(operation, self._mo, _other._mo)
@@ -106,6 +114,14 @@ class Token(object):
         ...    print(i)
         3 + 7
         10
+        >>> a = Integer(3)
+        >>> c = a + 7
+        >>> c
+        <Integer 10>
+        >>> for i in c.explain():
+        ...    print(i)
+        3 + 7
+        10
         >>> from .number import Fraction 
         >>> a = Fraction("4/3")
         >>> b = Integer(7)
@@ -137,6 +153,9 @@ class Token(object):
         ...    print(i)
         3 * 7
         21
+        >>> c = a * 7
+        >>> c
+        <Integer 21>
         >>> from .number import Fraction 
         >>> a = Fraction("4/3")
         >>> b = Integer(7)
@@ -164,6 +183,9 @@ class Token(object):
         >>> for i in c.explain():
         ...    print(i)
         3 / 7
+        >>> c = a / 7
+        >>> c
+        <Fraction 3 / 7>
         >>> from .number import Fraction 
         >>> a = Fraction("4/3")
         >>> b = Integer(7)
@@ -179,6 +201,60 @@ class Token(object):
         """
         return self._operate(other, "/")
 
+
+    def _roperate(self, other, operation):
+        """ Make a operation between 2 Tokens """
+        from ..expression import Expression
+        from ...core import Tree
+        from . import factory
+
+        if not isinstance(other, Token):
+            try:
+                _other = factory(other)
+            except AttributeError:
+                _other = factory(Expression(moify(other)))
+        else:
+            _other = other
+        tree = Tree(operation, _other._mo, self._mo)
+        return Expression(tree).simplify()
+
+    def __radd__(self, other):
+        """ Adding 2 Tokens or a Token and a Expression
+
+        :example:
+        >>> from .number import Integer 
+        >>> a = Integer(3)
+        >>> c = 7 + a
+        >>> c
+        <Integer 10>
+        """
+        return self._roperate(other, "+")
+
+    def __rmul__(self, other):
+        """ Multiply 2 Tokens or a Token and a Expression
+
+        :example:
+        >>> from .number import Integer 
+        >>> a = Integer(3)
+        >>> c = 7 * a
+        >>> c
+        <Integer 21>
+        """
+        return self._roperate(other, "*")
+
+    def __rtruediv__(self, other):
+        """ Divising 2 Tokens or a Token and a Expression
+
+        :example:
+        >>> from .number import Integer 
+        >>> a = Integer(3)
+        >>> c = 7 / a
+        >>> c
+        <Fraction 7 / 3>
+        """
+        return self._roperate(other, "/")
+
+
     def _get_soul(self, other=None):
         """ Get the builtin soul of self or other """
         if isinstance(other, Token):