"""AutoComplete.py - An IDLE extension for automatically completing names. This extension can complete either attribute names of file names. It can popa window with all available names, for the user to select from."""import osimport sysimport string from configHandler import idleConf import AutoCompleteWindowfrom HyperParser import HyperParser import __main__ # This string includes all chars that may be in a file name (without a path# separator)FILENAME_CHARS = string.ascii_letters + string.digits + os.curdir + "._~#$:-"# This string includes all chars that may be in an identifierID_CHARS = string.ascii_letters + string.digits + "_" # These constants represent the two different types of completionsCOMPLETE_ATTRIBUTES, COMPLETE_FILES = range(1, 2+1) class AutoComplete:     menudefs = [        ('edit', [            ("Show completions", "<<force-open-completions>>"),        ])    ]     popupwait = idleConf.GetOption("extensions", "AutoComplete",                                   "popupwait", type="int", default=0)     def __init__(self, editwin=None):        if editwin == None:  # subprocess and test            self.editwin = None            return        self.editwin = editwin        self.text = editwin.text        self.autocompletewindow = None         # id of delayed call, and the index of the text insert when the delayed        # call was issued. If _delayed_completion_id is None, there is no        # delayed call.        self._delayed_completion_id = None        self._delayed_completion_index = None     def _make_autocomplete_window(self):        return AutoCompleteWindow.AutoCompleteWindow(self.text)     def _remove_autocomplete_window(self, event=None):        if self.autocompletewindow:            self.autocompletewindow.hide_window()            self.autocompletewindow = None     def force_open_completions_event(self, event):        """Happens when the user really wants to open a completion list, even        if a function call is needed.        """        self.open_completions(True, False, True)     def try_open_completions_event(self, event):        """Happens when it would be nice to open a completion list, but not        really neccesary, for example after an dot, so function        calls won't be made.        """        lastchar = self.text.get("insert-1c")        if lastchar == ".":            self._open_completions_later(False, False, False,                                         COMPLETE_ATTRIBUTES)        elif lastchar == os.sep:            self._open_completions_later(False, False, False,                                         COMPLETE_FILES)     def autocomplete_event(self, event):        """Happens when the user wants to complete his word, and if neccesary,        open a completion list after that (if there is more than one        completion)        """        if hasattr(event, "mc_state") and event.mc_state:            # A modifier was pressed along with the tab, continue as usual.            return        if self.autocompletewindow and self.autocompletewindow.is_active():            self.autocompletewindow.complete()            return "break"        else:            opened = self.open_completions(False, True, True)            if opened:                return "break"     def _open_completions_later(self, *args):        self._delayed_completion_index = self.text.index("insert")        if self._delayed_completion_id is not None:            self.text.after_cancel(self._delayed_completion_id)        self._delayed_completion_id = \            self.text.after(self.popupwait, self._delayed_open_completions,                            *args)     def _delayed_open_completions(self, *args):        self._delayed_completion_id = None        if self.text.index("insert") != self._delayed_completion_index:            return        self.open_completions(*args)     def open_completions(self, evalfuncs, complete, userWantsWin, mode=None):        """Find the completions and create the AutoCompleteWindow.        Return True if successful (no syntax error or so found).        if complete is True, then if there's nothing to complete and no        start of completion, won't open completions and return False.        If mode is given, will open a completion list only in this mode.        """        # Cancel another delayed call, if it exists.        if self._delayed_completion_id is not None:            self.text.after_cancel(self._delayed_completion_id)            self._delayed_completion_id = None         hp = HyperParser(self.editwin, "insert")        curline = self.text.get("insert linestart", "insert")        i = j = len(curline)        if hp.is_in_string() and (not mode or mode==COMPLETE_FILES):            self._remove_autocomplete_window()            mode = COMPLETE_FILES            while i and curline[i-1] in FILENAME_CHARS:                i -= 1            comp_start = curline[i:j]            j = i            while i and curline[i-1] in FILENAME_CHARS+os.sep:                i -= 1            comp_what = curline[i:j]        elif hp.is_in_code() and (not mode or mode==COMPLETE_ATTRIBUTES):            self._remove_autocomplete_window()            mode = COMPLETE_ATTRIBUTES            while i and curline[i-1] in ID_CHARS:                i -= 1            comp_start = curline[i:j]            if i and curline[i-1] == '.':                hp.set_index("insert-%dc" % (len(curline)-(i-1)))                comp_what = hp.get_expression()                if not comp_what or \                   (not evalfuncs and comp_what.find('(') != -1):                    return            else:                comp_what = ""        else:            return         if complete and not comp_what and not comp_start:            return        comp_lists = self.fetch_completions(comp_what, mode)        if not comp_lists[0]:            return        self.autocompletewindow = self._make_autocomplete_window()        self.autocompletewindow.show_window(comp_lists,                                            "insert-%dc" % len(comp_start),                                            complete,                                            mode,                                            userWantsWin)        return True     def fetch_completions(self, what, mode):        """Return a pair of lists of completions for something. The first list        is a sublist of the second. Both are sorted.         If there is a Python subprocess, get the comp. list there.  Otherwise,        either fetch_completions() is running in the subprocess itself or it        was called in an IDLE EditorWindow before any script had been run.         The subprocess environment is that of the most recently run script.  If        two unrelated modules are being edited some calltips in the current        module may be inoperative if the module was not the last to run.        """        try:            rpcclt = self.editwin.flist.pyshell.interp.rpcclt        except:            rpcclt = None        if rpcclt:            return rpcclt.remotecall("exec", "get_the_completion_list",                                     (what, mode), {})        else:            if mode == COMPLETE_ATTRIBUTES:                if what == "":                    namespace = __main__.__dict__.copy()                    namespace.update(__main__.__builtins__.__dict__)                    bigl = eval("dir()", namespace)                    bigl.sort()                    if "__all__" in bigl:                        smalll = eval("__all__", namespace)                        smalll.sort()                    else:                        smalll = filter(lambda s: s[:1] != '_', bigl)                else:                    try:                        entity = self.get_entity(what)                        bigl = dir(entity)                        bigl.sort()                        if "__all__" in bigl:                            smalll = entity.__all__                            smalll.sort()                        else:                            smalll = filter(lambda s: s[:1] != '_', bigl)                    except:                        return [], []             elif mode == COMPLETE_FILES:                if what == "":                    what = "."                try:                    expandedpath = os.path.expanduser(what)                    bigl = os.listdir(expandedpath)                    bigl.sort()                    smalll = filter(lambda s: s[:1] != '.', bigl)                except OSError:                    return [], []             if not smalll:                smalll = bigl            return smalll, bigl     def get_entity(self, name):        """Lookup name in a namespace spanning sys.modules and __main.dict__"""        namespace = sys.modules.copy()        namespace.update(__main__.__dict__)        return eval(name, namespace)