[Emacs-diffs] Changes to emacs3.py

[Glenn Morris]

CVSROOT:        /sources/emacs
Module name:    emacs
Changes by:     Glenn Morris <gm>       07/09/24 00:17:18

Index: emacs3.py
===================================================================
RCS file: emacs3.py
diff -N emacs3.py
--- /dev/null   1 Jan 1970 00:00:00 -0000
+++ emacs3.py   24 Sep 2007 00:17:17 -0000      1.1
@@ -0,0 +1,243 @@
+"""
+Warning: This file is automatically generated from emacs2.py with the
+2to3 script.  Do not hand edit.
+"""
+
+"""Definitions used by commands sent to inferior Python in python.el."""
+
+# Copyright (C) 2004, 2005, 2006, 2007  Free Software Foundation, Inc.
+# Author: Dave Love <address@hidden>
+
+# This file is part of GNU Emacs.
+
+# GNU Emacs is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+
+# GNU Emacs is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with GNU Emacs; see the file COPYING.  If not, write to the
+# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+# Boston, MA 02110-1301, USA.
+
+import os, sys, traceback, inspect, __main__
+
+try:
+    set
+except:
+    from sets import Set as set
+
+__all__ = ["eexecfile", "eargs", "complete", "ehelp", "eimport", "modpath"]
+
+def format_exception (filename, should_remove_self):
+    type, value, tb = sys.exc_info ()
+    sys.last_type = type
+    sys.last_value = value
+    sys.last_traceback = tb
+    if type is SyntaxError:
+        try: # parse the error message
+            msg, (dummy_filename, lineno, offset, line) = value
+        except:
+            pass # Not the format we expect; leave it alone
+        else:
+            # Stuff in the right filename
+            value = SyntaxError(msg, (filename, lineno, offset, line))
+            sys.last_value = value
+    res = traceback.format_exception_only (type, value)
+    # There are some compilation errors which do not provide traceback so we
+    # should not massage it.
+    if should_remove_self:
+        tblist = traceback.extract_tb (tb)
+        del tblist[:1]
+        res = traceback.format_list (tblist)
+        if res:
+            res.insert(0, "Traceback (most recent call last):\n")
+        res[len(res):] = traceback.format_exception_only (type, value)
+    # traceback.print_exception(type, value, tb)
+    for line in res: print(line, end=' ')
+
+def eexecfile (file):
+    """Execute FILE and then remove it.
+    Execute the file within the __main__ namespace.
+    If we get an exception, print a traceback with the top frame
+    (ourselves) excluded."""
+    # We cannot use real execfile since it has a bug where the file stays
+    # locked forever (under w32) if SyntaxError occurs.
+    # --- code based on code.py and PyShell.py.
+    try:
+        try:
+            source = open (file, "r").read()
+            code = compile (source, file, "exec")
+        # Other exceptions (shouldn't be any...) will (correctly) fall
+        # through to "final".
+        except (OverflowError, SyntaxError, ValueError):
+            # FIXME: When can compile() raise anything else than
+            # SyntaxError ????
+            format_exception (file, False)
+            return
+        try:
+            exec(code, __main__.__dict__)
+        except:
+            format_exception (file, True)
+    finally:
+        os.remove (file)
+
+def eargs (name, imports):
+    "Get arglist of NAME for Eldoc &c."
+    try:
+        if imports: exec(imports)
+        parts = name.split ('.')
+        if len (parts) > 1:
+            exec('import ' + parts[0]) # might fail
+        func = eval (name)
+        if inspect.isbuiltin (func) or type(func) is type:
+            doc = func.__doc__
+            if doc.find (' ->') != -1:
+                print('_emacs_out', doc.split (' ->')[0])
+            else:
+                print('_emacs_out', doc.split ('\n')[0])
+            return
+        if inspect.ismethod (func):
+            func = func.im_func
+        if not inspect.isfunction (func):
+            print('_emacs_out ')
+            return
+        (args, varargs, varkw, defaults) = inspect.getargspec (func)
+        # No space between name and arglist for consistency with builtins.
+        print('_emacs_out', \
+            func.__name__ + inspect.formatargspec (args, varargs, varkw,
+                                                   defaults))
+    except:
+        print("_emacs_out ")
+
+def all_names (object):
+    """Return (an approximation to) a list of all possible attribute
+    names reachable via the attributes of OBJECT, i.e. roughly the
+    leaves of the dictionary tree under it."""
+
+    def do_object (object, names):
+        if inspect.ismodule (object):
+            do_module (object, names)
+        elif inspect.isclass (object):
+            do_class (object, names)
+        # Might have an object without its class in scope.
+        elif hasattr (object, '__class__'):
+            names.add ('__class__')
+            do_class (object.__class__, names)
+        # Probably not a good idea to try to enumerate arbitrary
+        # dictionaries...
+        return names
+
+    def do_module (module, names):
+        if hasattr (module, '__all__'): # limited export list
+            names.update(module.__all__)
+            for i in module.__all__:
+                do_object (getattr (module, i), names)
+        else:                   # use all names
+            names.update(dir (module))
+            for i in dir (module):
+                do_object (getattr (module, i), names)
+        return names
+
+    def do_class (object, names):
+        ns = dir (object)
+        names.update(ns)
+        if hasattr (object, '__bases__'): # superclasses
+            for i in object.__bases__: do_object (i, names)
+        return names
+
+    return do_object (object, set([]))
+
+def complete (name, imports):
+    """Complete TEXT in NAMESPACE and print a Lisp list of completions.
+    Exec IMPORTS first."""
+    import __main__, keyword
+
+    def class_members(object):
+        names = dir (object)
+        if hasattr (object, '__bases__'):
+            for super in object.__bases__:
+                names = class_members (super)
+        return names    
+
+    names = set([])
+    base = None
+    try:
+        dict = __main__.__dict__.copy()
+        if imports: exec(imports, dict)
+        l = len (name)
+        if not "." in name:
+            for src in [dir (__builtins__), keyword.kwlist, list(dict.keys())]:
+                for elt in src:
+                    if elt[:l] == name: names.add(elt)
+        else:
+            base = name[:name.rfind ('.')]
+            name = name[name.rfind('.')+1:]
+            try:
+                object = eval (base, dict)
+                names = set(dir (object))
+                if hasattr (object, '__class__'):
+                    names.add('__class__')
+                    names.update(class_members (object))
+            except: names = all_names (dict)
+    except: 
+        print(sys.exc_info())
+        names = []
+        
+    l = len(name)
+    print('_emacs_out (', end=' ')
+    for n in names:
+        if name == n[:l]:
+            if base: print('"%s.%s"' % (base, n), end=' ')
+            else: print('"%s"' % n, end=' ')
+    print(')')
+
+def ehelp (name, imports):
+    """Get help on string NAME.
+    First try to eval name for, e.g. user definitions where we need
+    the object.  Otherwise try the string form."""
+    locls = {}
+    if imports:
+        try: exec(imports, locls)
+        except: pass
+    try: help (eval (name, globals(), locls))
+    except: help (name)
+
+def eimport (mod, dir):
+    """Import module MOD with directory DIR at the head of the search path.
+    NB doesn't load from DIR if MOD shadows a system module."""
+    from __main__ import __dict__
+
+    path0 = sys.path[0]
+    sys.path[0] = dir
+    try:
+        try:
+            if mod in __dict__ and inspect.ismodule (__dict__[mod]):
+                reload (__dict__[mod])
+            else:
+                __dict__[mod] = __import__ (mod)
+        except:
+            (type, value, tb) = sys.exc_info ()
+            print("Traceback (most recent call last):")
+            traceback.print_exception (type, value, tb.tb_next)
+    finally:
+        sys.path[0] = path0
+
+def modpath (module):
+    """Return the source file for the given MODULE (or None).
+Assumes that MODULE.py and MODULE.pyc are in the same directory."""
+    try:
+        path = __import__ (module).__file__
+        if path[-4:] == '.pyc' and os.path.exists (path[0:-1]):
+            path = path[:-1]
+        print("_emacs_out", path)
+    except:
+        print("_emacs_out ()")
+
+# print '_emacs_ok'             # ready for input and can call continuation
+