From a59127c5ac4eb909813e55cba6badf27f3bc0218 2007-05-15 16:56:44
From: vivainio
Date: 2007-05-15 16:56:44
Subject: [PATCH] IPyAutocall machinery
---

diff --git a/IPython/ipapi.py b/IPython/ipapi.py
index 5f54e82..57f9ae1 100644
--- a/IPython/ipapi.py
+++ b/IPython/ipapi.py
@@ -80,6 +80,22 @@ class TryNext(Exception):
         self.args = args
         self.kwargs = kwargs
 
+class IPyAutocall:
+    """ Instances of this class are always autocalled
+    
+    This happens regardless of 'autocall' variable state. Use this to
+    develop macro-like mechanisms.
+    """
+    
+    def set_ip(self,ip):
+        """ Will be used to set _ip point to current ipython instance b/f call
+        
+        Override this method if you don't want this to happen.
+        
+        """
+        self._ip = ip
+    
+
 # contains the most recently instantiated IPApi
 
 class IPythonNotRunning:
diff --git a/IPython/iplib.py b/IPython/iplib.py
index fa611ec..9b601d5 100644
--- a/IPython/iplib.py
+++ b/IPython/iplib.py
@@ -6,7 +6,7 @@ Requires Python 2.3 or newer.
 
 This file contains all the classes and helper functions specific to IPython.
 
-$Id: iplib.py 2344 2007-05-15 15:09:39Z vivainio $
+$Id: iplib.py 2350 2007-05-15 16:56:44Z vivainio $
 """
 
 #*****************************************************************************
@@ -2182,6 +2182,13 @@ want to merge them back into the new files.""" % locals()
         if line.endswith('# PYTHON-MODE'):
             return self.handle_emacs(line,continue_prompt)
 
+        # instances of IPyAutocall in user_ns get autocalled immediately
+        obj = self.user_ns.get(iFun,None)
+        if isinstance(obj, IPython.ipapi.IPyAutocall):
+            obj.set_ip(self.api)
+            return self.handle_auto(line,continue_prompt,
+                        pre,iFun,theRest,obj)
+        
         # Let's try to find if the input line is a magic fn
         oinfo = None
         if hasattr(self,'magic_'+iFun):
@@ -2359,6 +2366,7 @@ want to merge them back into the new files.""" % locals()
             self.log(line,line,continue_prompt)
             return line
 
+        force_auto = isinstance(obj, IPython.ipapi.IPyAutocall)
         auto_rewrite = True
         
         if pre == self.ESC_QUOTE:
@@ -2374,11 +2382,11 @@ want to merge them back into the new files.""" % locals()
             # We only apply it to argument-less calls if the autocall
             # parameter is set to 2.  We only need to check that autocall is <
             # 2, since this function isn't called unless it's at least 1.
-            if not theRest and (self.rc.autocall < 2):
+            if not theRest and (self.rc.autocall < 2) and not force_auto:
                 newcmd = '%s %s' % (iFun,theRest)
                 auto_rewrite = False
             else:
-                if theRest.startswith('['):
+                if not force_auto and theRest.startswith('['):
                     if hasattr(obj,'__getitem__'):
                         # Don't autocall in this case: item access for an object
                         # which is BOTH callable and implements __getitem__.
diff --git a/IPython/macro.py b/IPython/macro.py
index 51887f7..fec044c 100644
--- a/IPython/macro.py
+++ b/IPython/macro.py
@@ -11,9 +11,9 @@ import IPython.ipapi
 
 
 from IPython.genutils import Term
+from IPython.ipapi import IPyAutocall
 
-
-class Macro:
+class Macro(IPyAutocall):
     """Simple class to store the value of macros as strings.
 
     Macro is just a callable that executes a string of IPython
@@ -34,5 +34,5 @@ class Macro:
     
     def __call__(self):
         Term.cout.flush()
-        ip = IPython.ipapi.get()
-        ip.runlines(self.value)
\ No newline at end of file
+        
+        self._ip.runlines(self.value)
\ No newline at end of file
diff --git a/doc/ChangeLog b/doc/ChangeLog
index c65d3e7..b2360fb 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -10,6 +10,10 @@
 
 	* Magic.py, ipy_rehashdir.py, ipy_profile_sh.py: System command
 	aliases are now lower case on windows (MyCommand.exe => mycommand).
+	
+	* macro.py, ipapi.py, iplib.py, Prompts.py: Macro system rehaul.
+	Macros are now callable objects that inherit from ipapi.IPyAutocall,
+	i.e. get autocalled regardless of system autocall setting.
 
 2007-05-10  Fernando Perez  <Fernando.Perez@colorado.edu>