diff options
Diffstat (limited to 'Lib/idlelib/editor.py')
| -rw-r--r-- | Lib/idlelib/editor.py | 1703 |
1 files changed, 1703 insertions, 0 deletions
diff --git a/Lib/idlelib/editor.py b/Lib/idlelib/editor.py new file mode 100644 index 0000000..b5868be --- /dev/null +++ b/Lib/idlelib/editor.py @@ -0,0 +1,1703 @@ +import importlib +import importlib.abc +import importlib.util +import os +import platform +import re +import string +import sys +from tkinter import * +import tkinter.simpledialog as tkSimpleDialog +import tkinter.messagebox as tkMessageBox +import traceback +import webbrowser + +from idlelib.MultiCall import MultiCallCreator +from idlelib import WindowList +from idlelib import SearchDialog +from idlelib import GrepDialog +from idlelib import ReplaceDialog +from idlelib import PyParse +from idlelib.configHandler import idleConf +from idlelib import aboutDialog, textView, configDialog +from idlelib import macosxSupport +from idlelib import help + +# The default tab setting for a Text widget, in average-width characters. +TK_TABWIDTH_DEFAULT = 8 + +_py_version = ' (%s)' % platform.python_version() + +def _sphinx_version(): + "Format sys.version_info to produce the Sphinx version string used to install the chm docs" + major, minor, micro, level, serial = sys.version_info + release = '%s%s' % (major, minor) + release += '%s' % (micro,) + if level == 'candidate': + release += 'rc%s' % (serial,) + elif level != 'final': + release += '%s%s' % (level[0], serial) + return release + + +class HelpDialog(object): + + def __init__(self): + self.parent = None # parent of help window + self.dlg = None # the help window iteself + + def display(self, parent, near=None): + """ Display the help dialog. + + parent - parent widget for the help window + + near - a Toplevel widget (e.g. EditorWindow or PyShell) + to use as a reference for placing the help window + """ + import warnings as w + w.warn("EditorWindow.HelpDialog is no longer used by Idle.\n" + "It will be removed in 3.6 or later.\n" + "It has been replaced by private help.HelpWindow\n", + DeprecationWarning, stacklevel=2) + if self.dlg is None: + self.show_dialog(parent) + if near: + self.nearwindow(near) + + def show_dialog(self, parent): + self.parent = parent + fn=os.path.join(os.path.abspath(os.path.dirname(__file__)),'help.txt') + self.dlg = dlg = textView.view_file(parent,'Help',fn, modal=False) + dlg.bind('<Destroy>', self.destroy, '+') + + def nearwindow(self, near): + # Place the help dialog near the window specified by parent. + # Note - this may not reposition the window in Metacity + # if "/apps/metacity/general/disable_workarounds" is enabled + dlg = self.dlg + geom = (near.winfo_rootx() + 10, near.winfo_rooty() + 10) + dlg.withdraw() + dlg.geometry("=+%d+%d" % geom) + dlg.deiconify() + dlg.lift() + + def destroy(self, ev=None): + self.dlg = None + self.parent = None + +helpDialog = HelpDialog() # singleton instance, no longer used + + +class EditorWindow(object): + from idlelib.Percolator import Percolator + from idlelib.ColorDelegator import ColorDelegator + from idlelib.UndoDelegator import UndoDelegator + from idlelib.IOBinding import IOBinding, filesystemencoding, encoding + from idlelib import Bindings + from tkinter import Toplevel + from idlelib.MultiStatusBar import MultiStatusBar + + help_url = None + + def __init__(self, flist=None, filename=None, key=None, root=None): + if EditorWindow.help_url is None: + dochome = os.path.join(sys.base_prefix, 'Doc', 'index.html') + if sys.platform.count('linux'): + # look for html docs in a couple of standard places + pyver = 'python-docs-' + '%s.%s.%s' % sys.version_info[:3] + if os.path.isdir('/var/www/html/python/'): # "python2" rpm + dochome = '/var/www/html/python/index.html' + else: + basepath = '/usr/share/doc/' # standard location + dochome = os.path.join(basepath, pyver, + 'Doc', 'index.html') + elif sys.platform[:3] == 'win': + chmfile = os.path.join(sys.base_prefix, 'Doc', + 'Python%s.chm' % _sphinx_version()) + if os.path.isfile(chmfile): + dochome = chmfile + elif sys.platform == 'darwin': + # documentation may be stored inside a python framework + dochome = os.path.join(sys.base_prefix, + 'Resources/English.lproj/Documentation/index.html') + dochome = os.path.normpath(dochome) + if os.path.isfile(dochome): + EditorWindow.help_url = dochome + if sys.platform == 'darwin': + # Safari requires real file:-URLs + EditorWindow.help_url = 'file://' + EditorWindow.help_url + else: + EditorWindow.help_url = "https://docs.python.org/%d.%d/" % sys.version_info[:2] + self.flist = flist + root = root or flist.root + self.root = root + try: + sys.ps1 + except AttributeError: + sys.ps1 = '>>> ' + self.menubar = Menu(root) + self.top = top = WindowList.ListedToplevel(root, menu=self.menubar) + if flist: + self.tkinter_vars = flist.vars + #self.top.instance_dict makes flist.inversedict available to + #configDialog.py so it can access all EditorWindow instances + self.top.instance_dict = flist.inversedict + else: + self.tkinter_vars = {} # keys: Tkinter event names + # values: Tkinter variable instances + self.top.instance_dict = {} + self.recent_files_path = os.path.join(idleConf.GetUserCfgDir(), + 'recent-files.lst') + self.text_frame = text_frame = Frame(top) + self.vbar = vbar = Scrollbar(text_frame, name='vbar') + self.width = idleConf.GetOption('main', 'EditorWindow', + 'width', type='int') + text_options = { + 'name': 'text', + 'padx': 5, + 'wrap': 'none', + 'highlightthickness': 0, + 'width': self.width, + 'height': idleConf.GetOption('main', 'EditorWindow', + 'height', type='int')} + if TkVersion >= 8.5: + # Starting with tk 8.5 we have to set the new tabstyle option + # to 'wordprocessor' to achieve the same display of tabs as in + # older tk versions. + text_options['tabstyle'] = 'wordprocessor' + self.text = text = MultiCallCreator(Text)(text_frame, **text_options) + self.top.focused_widget = self.text + + self.createmenubar() + self.apply_bindings() + + self.top.protocol("WM_DELETE_WINDOW", self.close) + self.top.bind("<<close-window>>", self.close_event) + if macosxSupport.isAquaTk(): + # Command-W on editorwindows doesn't work without this. + text.bind('<<close-window>>', self.close_event) + # Some OS X systems have only one mouse button, so use + # control-click for popup context menus there. For two + # buttons, AquaTk defines <2> as the right button, not <3>. + text.bind("<Control-Button-1>",self.right_menu_event) + text.bind("<2>", self.right_menu_event) + else: + # Elsewhere, use right-click for popup menus. + text.bind("<3>",self.right_menu_event) + text.bind("<<cut>>", self.cut) + text.bind("<<copy>>", self.copy) + text.bind("<<paste>>", self.paste) + text.bind("<<center-insert>>", self.center_insert_event) + text.bind("<<help>>", self.help_dialog) + text.bind("<<python-docs>>", self.python_docs) + text.bind("<<about-idle>>", self.about_dialog) + text.bind("<<open-config-dialog>>", self.config_dialog) + text.bind("<<open-module>>", self.open_module) + text.bind("<<do-nothing>>", lambda event: "break") + text.bind("<<select-all>>", self.select_all) + text.bind("<<remove-selection>>", self.remove_selection) + text.bind("<<find>>", self.find_event) + text.bind("<<find-again>>", self.find_again_event) + text.bind("<<find-in-files>>", self.find_in_files_event) + text.bind("<<find-selection>>", self.find_selection_event) + text.bind("<<replace>>", self.replace_event) + text.bind("<<goto-line>>", self.goto_line_event) + text.bind("<<smart-backspace>>",self.smart_backspace_event) + text.bind("<<newline-and-indent>>",self.newline_and_indent_event) + text.bind("<<smart-indent>>",self.smart_indent_event) + text.bind("<<indent-region>>",self.indent_region_event) + text.bind("<<dedent-region>>",self.dedent_region_event) + text.bind("<<comment-region>>",self.comment_region_event) + text.bind("<<uncomment-region>>",self.uncomment_region_event) + text.bind("<<tabify-region>>",self.tabify_region_event) + text.bind("<<untabify-region>>",self.untabify_region_event) + text.bind("<<toggle-tabs>>",self.toggle_tabs_event) + text.bind("<<change-indentwidth>>",self.change_indentwidth_event) + text.bind("<Left>", self.move_at_edge_if_selection(0)) + text.bind("<Right>", self.move_at_edge_if_selection(1)) + text.bind("<<del-word-left>>", self.del_word_left) + text.bind("<<del-word-right>>", self.del_word_right) + text.bind("<<beginning-of-line>>", self.home_callback) + + if flist: + flist.inversedict[self] = key + if key: + flist.dict[key] = self + text.bind("<<open-new-window>>", self.new_callback) + text.bind("<<close-all-windows>>", self.flist.close_all_callback) + text.bind("<<open-class-browser>>", self.open_class_browser) + text.bind("<<open-path-browser>>", self.open_path_browser) + text.bind("<<open-turtle-demo>>", self.open_turtle_demo) + + self.set_status_bar() + vbar['command'] = text.yview + vbar.pack(side=RIGHT, fill=Y) + text['yscrollcommand'] = vbar.set + text['font'] = idleConf.GetFont(self.root, 'main', 'EditorWindow') + text_frame.pack(side=LEFT, fill=BOTH, expand=1) + text.pack(side=TOP, fill=BOTH, expand=1) + text.focus_set() + + # usetabs true -> literal tab characters are used by indent and + # dedent cmds, possibly mixed with spaces if + # indentwidth is not a multiple of tabwidth, + # which will cause Tabnanny to nag! + # false -> tab characters are converted to spaces by indent + # and dedent cmds, and ditto TAB keystrokes + # Although use-spaces=0 can be configured manually in config-main.def, + # configuration of tabs v. spaces is not supported in the configuration + # dialog. IDLE promotes the preferred Python indentation: use spaces! + usespaces = idleConf.GetOption('main', 'Indent', + 'use-spaces', type='bool') + self.usetabs = not usespaces + + # tabwidth is the display width of a literal tab character. + # CAUTION: telling Tk to use anything other than its default + # tab setting causes it to use an entirely different tabbing algorithm, + # treating tab stops as fixed distances from the left margin. + # Nobody expects this, so for now tabwidth should never be changed. + self.tabwidth = 8 # must remain 8 until Tk is fixed. + + # indentwidth is the number of screen characters per indent level. + # The recommended Python indentation is four spaces. + self.indentwidth = self.tabwidth + self.set_notabs_indentwidth() + + # If context_use_ps1 is true, parsing searches back for a ps1 line; + # else searches for a popular (if, def, ...) Python stmt. + self.context_use_ps1 = False + + # When searching backwards for a reliable place to begin parsing, + # first start num_context_lines[0] lines back, then + # num_context_lines[1] lines back if that didn't work, and so on. + # The last value should be huge (larger than the # of lines in a + # conceivable file). + # Making the initial values larger slows things down more often. + self.num_context_lines = 50, 500, 5000000 + self.per = per = self.Percolator(text) + self.undo = undo = self.UndoDelegator() + per.insertfilter(undo) + text.undo_block_start = undo.undo_block_start + text.undo_block_stop = undo.undo_block_stop + undo.set_saved_change_hook(self.saved_change_hook) + # IOBinding implements file I/O and printing functionality + self.io = io = self.IOBinding(self) + io.set_filename_change_hook(self.filename_change_hook) + self.good_load = False + self.set_indentation_params(False) + self.color = None # initialized below in self.ResetColorizer + if filename: + if os.path.exists(filename) and not os.path.isdir(filename): + if io.loadfile(filename): + self.good_load = True + is_py_src = self.ispythonsource(filename) + self.set_indentation_params(is_py_src) + else: + io.set_filename(filename) + self.good_load = True + + self.ResetColorizer() + self.saved_change_hook() + self.update_recent_files_list() + self.load_extensions() + menu = self.menudict.get('windows') + if menu: + end = menu.index("end") + if end is None: + end = -1 + if end >= 0: + menu.add_separator() + end = end + 1 + self.wmenu_end = end + WindowList.register_callback(self.postwindowsmenu) + + # Some abstractions so IDLE extensions are cross-IDE + self.askyesno = tkMessageBox.askyesno + self.askinteger = tkSimpleDialog.askinteger + self.showerror = tkMessageBox.showerror + + def _filename_to_unicode(self, filename): + """Return filename as BMP unicode so diplayable in Tk.""" + # Decode bytes to unicode. + if isinstance(filename, bytes): + try: + filename = filename.decode(self.filesystemencoding) + except UnicodeDecodeError: + try: + filename = filename.decode(self.encoding) + except UnicodeDecodeError: + # byte-to-byte conversion + filename = filename.decode('iso8859-1') + # Replace non-BMP char with diamond questionmark. + return re.sub('[\U00010000-\U0010FFFF]', '\ufffd', filename) + + def new_callback(self, event): + dirname, basename = self.io.defaultfilename() + self.flist.new(dirname) + return "break" + + def home_callback(self, event): + if (event.state & 4) != 0 and event.keysym == "Home": + # state&4==Control. If <Control-Home>, use the Tk binding. + return + if self.text.index("iomark") and \ + self.text.compare("iomark", "<=", "insert lineend") and \ + self.text.compare("insert linestart", "<=", "iomark"): + # In Shell on input line, go to just after prompt + insertpt = int(self.text.index("iomark").split(".")[1]) + else: + line = self.text.get("insert linestart", "insert lineend") + for insertpt in range(len(line)): + if line[insertpt] not in (' ','\t'): + break + else: + insertpt=len(line) + lineat = int(self.text.index("insert").split('.')[1]) + if insertpt == lineat: + insertpt = 0 + dest = "insert linestart+"+str(insertpt)+"c" + if (event.state&1) == 0: + # shift was not pressed + self.text.tag_remove("sel", "1.0", "end") + else: + if not self.text.index("sel.first"): + # there was no previous selection + self.text.mark_set("my_anchor", "insert") + else: + if self.text.compare(self.text.index("sel.first"), "<", + self.text.index("insert")): + self.text.mark_set("my_anchor", "sel.first") # extend back + else: + self.text.mark_set("my_anchor", "sel.last") # extend forward + first = self.text.index(dest) + last = self.text.index("my_anchor") + if self.text.compare(first,">",last): + first,last = last,first + self.text.tag_remove("sel", "1.0", "end") + self.text.tag_add("sel", first, last) + self.text.mark_set("insert", dest) + self.text.see("insert") + return "break" + + def set_status_bar(self): + self.status_bar = self.MultiStatusBar(self.top) + sep = Frame(self.top, height=1, borderwidth=1, background='grey75') + if sys.platform == "darwin": + # Insert some padding to avoid obscuring some of the statusbar + # by the resize widget. + self.status_bar.set_label('_padding1', ' ', side=RIGHT) + self.status_bar.set_label('column', 'Col: ?', side=RIGHT) + self.status_bar.set_label('line', 'Ln: ?', side=RIGHT) + self.status_bar.pack(side=BOTTOM, fill=X) + sep.pack(side=BOTTOM, fill=X) + self.text.bind("<<set-line-and-column>>", self.set_line_and_column) + self.text.event_add("<<set-line-and-column>>", + "<KeyRelease>", "<ButtonRelease>") + self.text.after_idle(self.set_line_and_column) + + def set_line_and_column(self, event=None): + line, column = self.text.index(INSERT).split('.') + self.status_bar.set_label('column', 'Col: %s' % column) + self.status_bar.set_label('line', 'Ln: %s' % line) + + menu_specs = [ + ("file", "_File"), + ("edit", "_Edit"), + ("format", "F_ormat"), + ("run", "_Run"), + ("options", "_Options"), + ("windows", "_Window"), + ("help", "_Help"), + ] + + + def createmenubar(self): + mbar = self.menubar + self.menudict = menudict = {} + for name, label in self.menu_specs: + underline, label = prepstr(label) + menudict[name] = menu = Menu(mbar, name=name, tearoff=0) + mbar.add_cascade(label=label, menu=menu, underline=underline) + if macosxSupport.isCarbonTk(): + # Insert the application menu + menudict['application'] = menu = Menu(mbar, name='apple', + tearoff=0) + mbar.add_cascade(label='IDLE', menu=menu) + self.fill_menus() + self.recent_files_menu = Menu(self.menubar, tearoff=0) + self.menudict['file'].insert_cascade(3, label='Recent Files', + underline=0, + menu=self.recent_files_menu) + self.base_helpmenu_length = self.menudict['help'].index(END) + self.reset_help_menu_entries() + + def postwindowsmenu(self): + # Only called when Windows menu exists + menu = self.menudict['windows'] + end = menu.index("end") + if end is None: + end = -1 + if end > self.wmenu_end: + menu.delete(self.wmenu_end+1, end) + WindowList.add_windows_to_menu(menu) + + rmenu = None + + def right_menu_event(self, event): + self.text.mark_set("insert", "@%d,%d" % (event.x, event.y)) + if not self.rmenu: + self.make_rmenu() + rmenu = self.rmenu + self.event = event + iswin = sys.platform[:3] == 'win' + if iswin: + self.text.config(cursor="arrow") + + for item in self.rmenu_specs: + try: + label, eventname, verify_state = item + except ValueError: # see issue1207589 + continue + + if verify_state is None: + continue + state = getattr(self, verify_state)() + rmenu.entryconfigure(label, state=state) + + + rmenu.tk_popup(event.x_root, event.y_root) + if iswin: + self.text.config(cursor="ibeam") + + rmenu_specs = [ + # ("Label", "<<virtual-event>>", "statefuncname"), ... + ("Close", "<<close-window>>", None), # Example + ] + + def make_rmenu(self): + rmenu = Menu(self.text, tearoff=0) + for item in self.rmenu_specs: + label, eventname = item[0], item[1] + if label is not None: + def command(text=self.text, eventname=eventname): + text.event_generate(eventname) + rmenu.add_command(label=label, command=command) + else: + rmenu.add_separator() + self.rmenu = rmenu + + def rmenu_check_cut(self): + return self.rmenu_check_copy() + + def rmenu_check_copy(self): + try: + indx = self.text.index('sel.first') + except TclError: + return 'disabled' + else: + return 'normal' if indx else 'disabled' + + def rmenu_check_paste(self): + try: + self.text.tk.call('tk::GetSelection', self.text, 'CLIPBOARD') + except TclError: + return 'disabled' + else: + return 'normal' + + def about_dialog(self, event=None): + "Handle Help 'About IDLE' event." + # Synchronize with macosxSupport.overrideRootMenu.about_dialog. + aboutDialog.AboutDialog(self.top,'About IDLE') + + def config_dialog(self, event=None): + "Handle Options 'Configure IDLE' event." + # Synchronize with macosxSupport.overrideRootMenu.config_dialog. + configDialog.ConfigDialog(self.top,'Settings') + + def help_dialog(self, event=None): + "Handle Help 'IDLE Help' event." + # Synchronize with macosxSupport.overrideRootMenu.help_dialog. + if self.root: + parent = self.root + else: + parent = self.top + help.show_idlehelp(parent) + + def python_docs(self, event=None): + if sys.platform[:3] == 'win': + try: + os.startfile(self.help_url) + except OSError as why: + tkMessageBox.showerror(title='Document Start Failure', + message=str(why), parent=self.text) + else: + webbrowser.open(self.help_url) + return "break" + + def cut(self,event): + self.text.event_generate("<<Cut>>") + return "break" + + def copy(self,event): + if not self.text.tag_ranges("sel"): + # There is no selection, so do nothing and maybe interrupt. + return + self.text.event_generate("<<Copy>>") + return "break" + + def paste(self,event): + self.text.event_generate("<<Paste>>") + self.text.see("insert") + return "break" + + def select_all(self, event=None): + self.text.tag_add("sel", "1.0", "end-1c") + self.text.mark_set("insert", "1.0") + self.text.see("insert") + return "break" + + def remove_selection(self, event=None): + self.text.tag_remove("sel", "1.0", "end") + self.text.see("insert") + + def move_at_edge_if_selection(self, edge_index): + """Cursor move begins at start or end of selection + + When a left/right cursor key is pressed create and return to Tkinter a + function which causes a cursor move from the associated edge of the + selection. + + """ + self_text_index = self.text.index + self_text_mark_set = self.text.mark_set + edges_table = ("sel.first+1c", "sel.last-1c") + def move_at_edge(event): + if (event.state & 5) == 0: # no shift(==1) or control(==4) pressed + try: + self_text_index("sel.first") + self_text_mark_set("insert", edges_table[edge_index]) + except TclError: + pass + return move_at_edge + + def del_word_left(self, event): + self.text.event_generate('<Meta-Delete>') + return "break" + + def del_word_right(self, event): + self.text.event_generate('<Meta-d>') + return "break" + + def find_event(self, event): + SearchDialog.find(self.text) + return "break" + + def find_again_event(self, event): + SearchDialog.find_again(self.text) + return "break" + + def find_selection_event(self, event): + SearchDialog.find_selection(self.text) + return "break" + + def find_in_files_event(self, event): + GrepDialog.grep(self.text, self.io, self.flist) + return "break" + + def replace_event(self, event): + ReplaceDialog.replace(self.text) + return "break" + + def goto_line_event(self, event): + text = self.text + lineno = tkSimpleDialog.askinteger("Goto", + "Go to line number:",parent=text) + if lineno is None: + return "break" + if lineno <= 0: + text.bell() + return "break" + text.mark_set("insert", "%d.0" % lineno) + text.see("insert") + + def open_module(self, event=None): + # XXX Shouldn't this be in IOBinding? + try: + name = self.text.get("sel.first", "sel.last") + except TclError: + name = "" + else: + name = name.strip() + name = tkSimpleDialog.askstring("Module", + "Enter the name of a Python module\n" + "to search on sys.path and open:", + parent=self.text, initialvalue=name) + if name: + name = name.strip() + if not name: + return + # XXX Ought to insert current file's directory in front of path + try: + spec = importlib.util.find_spec(name) + except (ValueError, ImportError) as msg: + tkMessageBox.showerror("Import error", str(msg), parent=self.text) + return + if spec is None: + tkMessageBox.showerror("Import error", "module not found", + parent=self.text) + return + if not isinstance(spec.loader, importlib.abc.SourceLoader): + tkMessageBox.showerror("Import error", "not a source-based module", + parent=self.text) + return + try: + file_path = spec.loader.get_filename(name) + except AttributeError: + tkMessageBox.showerror("Import error", + "loader does not support get_filename", + parent=self.text) + return + if self.flist: + self.flist.open(file_path) + else: + self.io.loadfile(file_path) + return file_path + + def open_class_browser(self, event=None): + filename = self.io.filename + if not (self.__class__.__name__ == 'PyShellEditorWindow' + and filename): + filename = self.open_module() + if filename is None: + return + head, tail = os.path.split(filename) + base, ext = os.path.splitext(tail) + from idlelib import ClassBrowser + ClassBrowser.ClassBrowser(self.flist, base, [head]) + + def open_path_browser(self, event=None): + from idlelib import PathBrowser + PathBrowser.PathBrowser(self.flist) + + def open_turtle_demo(self, event = None): + import subprocess + + cmd = [sys.executable, + '-c', + 'from turtledemo.__main__ import main; main()'] + subprocess.Popen(cmd, shell=False) + + def gotoline(self, lineno): + if lineno is not None and lineno > 0: + self.text.mark_set("insert", "%d.0" % lineno) + self.text.tag_remove("sel", "1.0", "end") + self.text.tag_add("sel", "insert", "insert +1l") + self.center() + + def ispythonsource(self, filename): + if not filename or os.path.isdir(filename): + return True + base, ext = os.path.splitext(os.path.basename(filename)) + if os.path.normcase(ext) in (".py", ".pyw"): + return True + line = self.text.get('1.0', '1.0 lineend') + return line.startswith('#!') and 'python' in line + + def close_hook(self): + if self.flist: + self.flist.unregister_maybe_terminate(self) + self.flist = None + + def set_close_hook(self, close_hook): + self.close_hook = close_hook + + def filename_change_hook(self): + if self.flist: + self.flist.filename_changed_edit(self) + self.saved_change_hook() + self.top.update_windowlist_registry(self) + self.ResetColorizer() + + def _addcolorizer(self): + if self.color: + return + if self.ispythonsource(self.io.filename): + self.color = self.ColorDelegator() + # can add more colorizers here... + if self.color: + self.per.removefilter(self.undo) + self.per.insertfilter(self.color) + self.per.insertfilter(self.undo) + + def _rmcolorizer(self): + if not self.color: + return + self.color.removecolors() + self.per.removefilter(self.color) + self.color = None + + def ResetColorizer(self): + "Update the color theme" + # Called from self.filename_change_hook and from configDialog.py + self._rmcolorizer() + self._addcolorizer() + theme = idleConf.CurrentTheme() + normal_colors = idleConf.GetHighlight(theme, 'normal') + cursor_color = idleConf.GetHighlight(theme, 'cursor', fgBg='fg') + select_colors = idleConf.GetHighlight(theme, 'hilite') + self.text.config( + foreground=normal_colors['foreground'], + background=normal_colors['background'], + insertbackground=cursor_color, + selectforeground=select_colors['foreground'], + selectbackground=select_colors['background'], + ) + if TkVersion >= 8.5: + self.text.config( + inactiveselectbackground=select_colors['background']) + + IDENTCHARS = string.ascii_letters + string.digits + "_" + + def colorize_syntax_error(self, text, pos): + text.tag_add("ERROR", pos) + char = text.get(pos) + if char and char in self.IDENTCHARS: + text.tag_add("ERROR", pos + " wordstart", pos) + if '\n' == text.get(pos): # error at line end + text.mark_set("insert", pos) + else: + text.mark_set("insert", pos + "+1c") + text.see(pos) + + def ResetFont(self): + "Update the text widgets' font if it is changed" + # Called from configDialog.py + + self.text['font'] = idleConf.GetFont(self.root, 'main','EditorWindow') + + def RemoveKeybindings(self): + "Remove the keybindings before they are changed." + # Called from configDialog.py + self.Bindings.default_keydefs = keydefs = idleConf.GetCurrentKeySet() + for event, keylist in keydefs.items(): + self.text.event_delete(event, *keylist) + for extensionName in self.get_standard_extension_names(): + xkeydefs = idleConf.GetExtensionBindings(extensionName) + if xkeydefs: + for event, keylist in xkeydefs.items(): + self.text.event_delete(event, *keylist) + + def ApplyKeybindings(self): + "Update the keybindings after they are changed" + # Called from configDialog.py + self.Bindings.default_keydefs = keydefs = idleConf.GetCurrentKeySet() + self.apply_bindings() + for extensionName in self.get_standard_extension_names(): + xkeydefs = idleConf.GetExtensionBindings(extensionName) + if xkeydefs: + self.apply_bindings(xkeydefs) + #update menu accelerators + menuEventDict = {} + for menu in self.Bindings.menudefs: + menuEventDict[menu[0]] = {} + for item in menu[1]: + if item: + menuEventDict[menu[0]][prepstr(item[0])[1]] = item[1] + for menubarItem in self.menudict: + menu = self.menudict[menubarItem] + end = menu.index(END) + if end is None: + # Skip empty menus + continue + end += 1 + for index in range(0, end): + if menu.type(index) == 'command': + accel = menu.entrycget(index, 'accelerator') + if accel: + itemName = menu.entrycget(index, 'label') + event = '' + if menubarItem in menuEventDict: + if itemName in menuEventDict[menubarItem]: + event = menuEventDict[menubarItem][itemName] + if event: + accel = get_accelerator(keydefs, event) + menu.entryconfig(index, accelerator=accel) + + def set_notabs_indentwidth(self): + "Update the indentwidth if changed and not using tabs in this window" + # Called from configDialog.py + if not self.usetabs: + self.indentwidth = idleConf.GetOption('main', 'Indent','num-spaces', + type='int') + + def reset_help_menu_entries(self): + "Update the additional help entries on the Help menu" + help_list = idleConf.GetAllExtraHelpSourcesList() + helpmenu = self.menudict['help'] + # first delete the extra help entries, if any + helpmenu_length = helpmenu.index(END) + if helpmenu_length > self.base_helpmenu_length: + helpmenu.delete((self.base_helpmenu_length + 1), helpmenu_length) + # then rebuild them + if help_list: + helpmenu.add_separator() + for entry in help_list: + cmd = self.__extra_help_callback(entry[1]) + helpmenu.add_command(label=entry[0], command=cmd) + # and update the menu dictionary + self.menudict['help'] = helpmenu + + def __extra_help_callback(self, helpfile): + "Create a callback with the helpfile value frozen at definition time" + def display_extra_help(helpfile=helpfile): + if not helpfile.startswith(('www', 'http')): + helpfile = os.path.normpath(helpfile) + if sys.platform[:3] == 'win': + try: + os.startfile(helpfile) + except OSError as why: + tkMessageBox.showerror(title='Document Start Failure', + message=str(why), parent=self.text) + else: + webbrowser.open(helpfile) + return display_extra_help + + def update_recent_files_list(self, new_file=None): + "Load and update the recent files list and menus" + rf_list = [] + if os.path.exists(self.recent_files_path): + with open(self.recent_files_path, 'r', + encoding='utf_8', errors='replace') as rf_list_file: + rf_list = rf_list_file.readlines() + if new_file: + new_file = os.path.abspath(new_file) + '\n' + if new_file in rf_list: + rf_list.remove(new_file) # move to top + rf_list.insert(0, new_file) + # clean and save the recent files list + bad_paths = [] + for path in rf_list: + if '\0' in path or not os.path.exists(path[0:-1]): + bad_paths.append(path) + rf_list = [path for path in rf_list if path not in bad_paths] + ulchars = "1234567890ABCDEFGHIJK" + rf_list = rf_list[0:len(ulchars)] + try: + with open(self.recent_files_path, 'w', + encoding='utf_8', errors='replace') as rf_file: + rf_file.writelines(rf_list) + except OSError as err: + if not getattr(self.root, "recentfilelist_error_displayed", False): + self.root.recentfilelist_error_displayed = True + tkMessageBox.showwarning(title='IDLE Warning', + message="Cannot update File menu Recent Files list. " + "Your operating system says:\n%s\n" + "Select OK and IDLE will continue without updating." + % self._filename_to_unicode(str(err)), + parent=self.text) + # for each edit window instance, construct the recent files menu + for instance in self.top.instance_dict: + menu = instance.recent_files_menu + menu.delete(0, END) # clear, and rebuild: + for i, file_name in enumerate(rf_list): + file_name = file_name.rstrip() # zap \n + # make unicode string to display non-ASCII chars correctly + ufile_name = self._filename_to_unicode(file_name) + callback = instance.__recent_file_callback(file_name) + menu.add_command(label=ulchars[i] + " " + ufile_name, + command=callback, + underline=0) + + def __recent_file_callback(self, file_name): + def open_recent_file(fn_closure=file_name): + self.io.open(editFile=fn_closure) + return open_recent_file + + def saved_change_hook(self): + short = self.short_title() + long = self.long_title() + if short and long: + title = short + " - " + long + _py_version + elif short: + title = short + elif long: + title = long + else: + title = "Untitled" + icon = short or long or title + if not self.get_saved(): + title = "*%s*" % title + icon = "*%s" % icon + self.top.wm_title(title) + self.top.wm_iconname(icon) + + def get_saved(self): + return self.undo.get_saved() + + def set_saved(self, flag): + self.undo.set_saved(flag) + + def reset_undo(self): + self.undo.reset_undo() + + def short_title(self): + filename = self.io.filename + if filename: + filename = os.path.basename(filename) + else: + filename = "Untitled" + # return unicode string to display non-ASCII chars correctly + return self._filename_to_unicode(filename) + + def long_title(self): + # return unicode string to display non-ASCII chars correctly + return self._filename_to_unicode(self.io.filename or "") + + def center_insert_event(self, event): + self.center() + + def center(self, mark="insert"): + text = self.text + top, bot = self.getwindowlines() + lineno = self.getlineno(mark) + height = bot - top + newtop = max(1, lineno - height//2) + text.yview(float(newtop)) + + def getwindowlines(self): + text = self.text + top = self.getlineno("@0,0") + bot = self.getlineno("@0,65535") + if top == bot and text.winfo_height() == 1: + # Geometry manager hasn't run yet + height = int(text['height']) + bot = top + height - 1 + return top, bot + + def getlineno(self, mark="insert"): + text = self.text + return int(float(text.index(mark))) + + def get_geometry(self): + "Return (width, height, x, y)" + geom = self.top.wm_geometry() + m = re.match(r"(\d+)x(\d+)\+(-?\d+)\+(-?\d+)", geom) + return list(map(int, m.groups())) + + def close_event(self, event): + self.close() + + def maybesave(self): + if self.io: + if not self.get_saved(): + if self.top.state()!='normal': + self.top.deiconify() + self.top.lower() + self.top.lift() + return self.io.maybesave() + + def close(self): + reply = self.maybesave() + if str(reply) != "cancel": + self._close() + return reply + + def _close(self): + if self.io.filename: + self.update_recent_files_list(new_file=self.io.filename) + WindowList.unregister_callback(self.postwindowsmenu) + self.unload_extensions() + self.io.close() + self.io = None + self.undo = None + if self.color: + self.color.close(False) + self.color = None + self.text = None + self.tkinter_vars = None + self.per.close() + self.per = None + self.top.destroy() + if self.close_hook: + # unless override: unregister from flist, terminate if last window + self.close_hook() + + def load_extensions(self): + self.extensions = {} + self.load_standard_extensions() + + def unload_extensions(self): + for ins in list(self.extensions.values()): + if hasattr(ins, "close"): + ins.close() + self.extensions = {} + + def load_standard_extensions(self): + for name in self.get_standard_extension_names(): + try: + self.load_extension(name) + except: + print("Failed to load extension", repr(name)) + traceback.print_exc() + + def get_standard_extension_names(self): + return idleConf.GetExtensions(editor_only=True) + + def load_extension(self, name): + try: + try: + mod = importlib.import_module('.' + name, package=__package__) + except (ImportError, TypeError): + mod = importlib.import_module(name) + except ImportError: + print("\nFailed to import extension: ", name) + raise + cls = getattr(mod, name) + keydefs = idleConf.GetExtensionBindings(name) + if hasattr(cls, "menudefs"): + self.fill_menus(cls.menudefs, keydefs) + ins = cls(self) + self.extensions[name] = ins + if keydefs: + self.apply_bindings(keydefs) + for vevent in keydefs: + methodname = vevent.replace("-", "_") + while methodname[:1] == '<': + methodname = methodname[1:] + while methodname[-1:] == '>': + methodname = methodname[:-1] + methodname = methodname + "_event" + if hasattr(ins, methodname): + self.text.bind(vevent, getattr(ins, methodname)) + + def apply_bindings(self, keydefs=None): + if keydefs is None: + keydefs = self.Bindings.default_keydefs + text = self.text + text.keydefs = keydefs + for event, keylist in keydefs.items(): + if keylist: + text.event_add(event, *keylist) + + def fill_menus(self, menudefs=None, keydefs=None): + """Add appropriate entries to the menus and submenus + + Menus that are absent or None in self.menudict are ignored. + """ + if menudefs is None: + menudefs = self.Bindings.menudefs + if keydefs is None: + keydefs = self.Bindings.default_keydefs + menudict = self.menudict + text = self.text + for mname, entrylist in menudefs: + menu = menudict.get(mname) + if not menu: + continue + for entry in entrylist: + if not entry: + menu.add_separator() + else: + label, eventname = entry + checkbutton = (label[:1] == '!') + if checkbutton: + label = label[1:] + underline, label = prepstr(label) + accelerator = get_accelerator(keydefs, eventname) + def command(text=text, eventname=eventname): + text.event_generate(eventname) + if checkbutton: + var = self.get_var_obj(eventname, BooleanVar) + menu.add_checkbutton(label=label, underline=underline, + command=command, accelerator=accelerator, + variable=var) + else: + menu.add_command(label=label, underline=underline, + command=command, + accelerator=accelerator) + + def getvar(self, name): + var = self.get_var_obj(name) + if var: + value = var.get() + return value + else: + raise NameError(name) + + def setvar(self, name, value, vartype=None): + var = self.get_var_obj(name, vartype) + if var: + var.set(value) + else: + raise NameError(name) + + def get_var_obj(self, name, vartype=None): + var = self.tkinter_vars.get(name) + if not var and vartype: + # create a Tkinter variable object with self.text as master: + self.tkinter_vars[name] = var = vartype(self.text) + return var + + # Tk implementations of "virtual text methods" -- each platform + # reusing IDLE's support code needs to define these for its GUI's + # flavor of widget. + + # Is character at text_index in a Python string? Return 0 for + # "guaranteed no", true for anything else. This info is expensive + # to compute ab initio, but is probably already known by the + # platform's colorizer. + + def is_char_in_string(self, text_index): + if self.color: + # Return true iff colorizer hasn't (re)gotten this far + # yet, or the character is tagged as being in a string + return self.text.tag_prevrange("TODO", text_index) or \ + "STRING" in self.text.tag_names(text_index) + else: + # The colorizer is missing: assume the worst + return 1 + + # If a selection is defined in the text widget, return (start, + # end) as Tkinter text indices, otherwise return (None, None) + def get_selection_indices(self): + try: + first = self.text.index("sel.first") + last = self.text.index("sel.last") + return first, last + except TclError: + return None, None + + # Return the text widget's current view of what a tab stop means + # (equivalent width in spaces). + + def get_tk_tabwidth(self): + current = self.text['tabs'] or TK_TABWIDTH_DEFAULT + return int(current) + + # Set the text widget's current view of what a tab stop means. + + def set_tk_tabwidth(self, newtabwidth): + text = self.text + if self.get_tk_tabwidth() != newtabwidth: + # Set text widget tab width + pixels = text.tk.call("font", "measure", text["font"], + "-displayof", text.master, + "n" * newtabwidth) + text.configure(tabs=pixels) + +### begin autoindent code ### (configuration was moved to beginning of class) + + def set_indentation_params(self, is_py_src, guess=True): + if is_py_src and guess: + i = self.guess_indent() + if 2 <= i <= 8: + self.indentwidth = i + if self.indentwidth != self.tabwidth: + self.usetabs = False + self.set_tk_tabwidth(self.tabwidth) + + def smart_backspace_event(self, event): + text = self.text + first, last = self.get_selection_indices() + if first and last: + text.delete(first, last) + text.mark_set("insert", first) + return "break" + # Delete whitespace left, until hitting a real char or closest + # preceding virtual tab stop. + chars = text.get("insert linestart", "insert") + if chars == '': + if text.compare("insert", ">", "1.0"): + # easy: delete preceding newline + text.delete("insert-1c") + else: + text.bell() # at start of buffer + return "break" + if chars[-1] not in " \t": + # easy: delete preceding real char + text.delete("insert-1c") + return "break" + # Ick. It may require *inserting* spaces if we back up over a + # tab character! This is written to be clear, not fast. + tabwidth = self.tabwidth + have = len(chars.expandtabs(tabwidth)) + assert have > 0 + want = ((have - 1) // self.indentwidth) * self.indentwidth + # Debug prompt is multilined.... + if self.context_use_ps1: + last_line_of_prompt = sys.ps1.split('\n')[-1] + else: + last_line_of_prompt = '' + ncharsdeleted = 0 + while 1: + if chars == last_line_of_prompt: + break + chars = chars[:-1] + ncharsdeleted = ncharsdeleted + 1 + have = len(chars.expandtabs(tabwidth)) + if have <= want or chars[-1] not in " \t": + break + text.undo_block_start() + text.delete("insert-%dc" % ncharsdeleted, "insert") + if have < want: + text.insert("insert", ' ' * (want - have)) + text.undo_block_stop() + return "break" + + def smart_indent_event(self, event): + # if intraline selection: + # delete it + # elif multiline selection: + # do indent-region + # else: + # indent one level + text = self.text + first, last = self.get_selection_indices() + text.undo_block_start() + try: + if first and last: + if index2line(first) != index2line(last): + return self.indent_region_event(event) + text.delete(first, last) + text.mark_set("insert", first) + prefix = text.get("insert linestart", "insert") + raw, effective = classifyws(prefix, self.tabwidth) + if raw == len(prefix): + # only whitespace to the left + self.reindent_to(effective + self.indentwidth) + else: + # tab to the next 'stop' within or to right of line's text: + if self.usetabs: + pad = '\t' + else: + effective = len(prefix.expandtabs(self.tabwidth)) + n = self.indentwidth + pad = ' ' * (n - effective % n) + text.insert("insert", pad) + text.see("insert") + return "break" + finally: + text.undo_block_stop() + + def newline_and_indent_event(self, event): + text = self.text + first, last = self.get_selection_indices() + text.undo_block_start() + try: + if first and last: + text.delete(first, last) + text.mark_set("insert", first) + line = text.get("insert linestart", "insert") + i, n = 0, len(line) + while i < n and line[i] in " \t": + i = i+1 + if i == n: + # the cursor is in or at leading indentation in a continuation + # line; just inject an empty line at the start + text.insert("insert linestart", '\n') + return "break" + indent = line[:i] + # strip whitespace before insert point unless it's in the prompt + i = 0 + last_line_of_prompt = sys.ps1.split('\n')[-1] + while line and line[-1] in " \t" and line != last_line_of_prompt: + line = line[:-1] + i = i+1 + if i: + text.delete("insert - %d chars" % i, "insert") + # strip whitespace after insert point + while text.get("insert") in " \t": + text.delete("insert") + # start new line + text.insert("insert", '\n') + + # adjust indentation for continuations and block + # open/close first need to find the last stmt + lno = index2line(text.index('insert')) + y = PyParse.Parser(self.indentwidth, self.tabwidth) + if not self.context_use_ps1: + for context in self.num_context_lines: + startat = max(lno - context, 1) + startatindex = repr(startat) + ".0" + rawtext = text.get(startatindex, "insert") + y.set_str(rawtext) + bod = y.find_good_parse_start( + self.context_use_ps1, + self._build_char_in_string_func(startatindex)) + if bod is not None or startat == 1: + break + y.set_lo(bod or 0) + else: + r = text.tag_prevrange("console", "insert") + if r: + startatindex = r[1] + else: + startatindex = "1.0" + rawtext = text.get(startatindex, "insert") + y.set_str(rawtext) + y.set_lo(0) + + c = y.get_continuation_type() + if c != PyParse.C_NONE: + # The current stmt hasn't ended yet. + if c == PyParse.C_STRING_FIRST_LINE: + # after the first line of a string; do not indent at all + pass + elif c == PyParse.C_STRING_NEXT_LINES: + # inside a string which started before this line; + # just mimic the current indent + text.insert("insert", indent) + elif c == PyParse.C_BRACKET: + # line up with the first (if any) element of the + # last open bracket structure; else indent one + # level beyond the indent of the line with the + # last open bracket + self.reindent_to(y.compute_bracket_indent()) + elif c == PyParse.C_BACKSLASH: + # if more than one line in this stmt already, just + # mimic the current indent; else if initial line + # has a start on an assignment stmt, indent to + # beyond leftmost =; else to beyond first chunk of + # non-whitespace on initial line + if y.get_num_lines_in_stmt() > 1: + text.insert("insert", indent) + else: + self.reindent_to(y.compute_backslash_indent()) + else: + assert 0, "bogus continuation type %r" % (c,) + return "break" + + # This line starts a brand new stmt; indent relative to + # indentation of initial line of closest preceding + # interesting stmt. + indent = y.get_base_indent_string() + text.insert("insert", indent) + if y.is_block_opener(): + self.smart_indent_event(event) + elif indent and y.is_block_closer(): + self.smart_backspace_event(event) + return "break" + finally: + text.see("insert") + text.undo_block_stop() + + # Our editwin provides an is_char_in_string function that works + # with a Tk text index, but PyParse only knows about offsets into + # a string. This builds a function for PyParse that accepts an + # offset. + + def _build_char_in_string_func(self, startindex): + def inner(offset, _startindex=startindex, + _icis=self.is_char_in_string): + return _icis(_startindex + "+%dc" % offset) + return inner + + def indent_region_event(self, event): + head, tail, chars, lines = self.get_region() + for pos in range(len(lines)): + line = lines[pos] + if line: + raw, effective = classifyws(line, self.tabwidth) + effective = effective + self.indentwidth + lines[pos] = self._make_blanks(effective) + line[raw:] + self.set_region(head, tail, chars, lines) + return "break" + + def dedent_region_event(self, event): + head, tail, chars, lines = self.get_region() + for pos in range(len(lines)): + line = lines[pos] + if line: + raw, effective = classifyws(line, self.tabwidth) + effective = max(effective - self.indentwidth, 0) + lines[pos] = self._make_blanks(effective) + line[raw:] + self.set_region(head, tail, chars, lines) + return "break" + + def comment_region_event(self, event): + head, tail, chars, lines = self.get_region() + for pos in range(len(lines) - 1): + line = lines[pos] + lines[pos] = '##' + line + self.set_region(head, tail, chars, lines) + + def uncomment_region_event(self, event): + head, tail, chars, lines = self.get_region() + for pos in range(len(lines)): + line = lines[pos] + if not line: + continue + if line[:2] == '##': + line = line[2:] + elif line[:1] == '#': + line = line[1:] + lines[pos] = line + self.set_region(head, tail, chars, lines) + + def tabify_region_event(self, event): + head, tail, chars, lines = self.get_region() + tabwidth = self._asktabwidth() + if tabwidth is None: return + for pos in range(len(lines)): + line = lines[pos] + if line: + raw, effective = classifyws(line, tabwidth) + ntabs, nspaces = divmod(effective, tabwidth) + lines[pos] = '\t' * ntabs + ' ' * nspaces + line[raw:] + self.set_region(head, tail, chars, lines) + + def untabify_region_event(self, event): + head, tail, chars, lines = self.get_region() + tabwidth = self._asktabwidth() + if tabwidth is None: return + for pos in range(len(lines)): + lines[pos] = lines[pos].expandtabs(tabwidth) + self.set_region(head, tail, chars, lines) + + def toggle_tabs_event(self, event): + if self.askyesno( + "Toggle tabs", + "Turn tabs " + ("on", "off")[self.usetabs] + + "?\nIndent width " + + ("will be", "remains at")[self.usetabs] + " 8." + + "\n Note: a tab is always 8 columns", + parent=self.text): + self.usetabs = not self.usetabs + # Try to prevent inconsistent indentation. + # User must change indent width manually after using tabs. + self.indentwidth = 8 + return "break" + + # XXX this isn't bound to anything -- see tabwidth comments +## def change_tabwidth_event(self, event): +## new = self._asktabwidth() +## if new != self.tabwidth: +## self.tabwidth = new +## self.set_indentation_params(0, guess=0) +## return "break" + + def change_indentwidth_event(self, event): + new = self.askinteger( + "Indent width", + "New indent width (2-16)\n(Always use 8 when using tabs)", + parent=self.text, + initialvalue=self.indentwidth, + minvalue=2, + maxvalue=16) + if new and new != self.indentwidth and not self.usetabs: + self.indentwidth = new + return "break" + + def get_region(self): + text = self.text + first, last = self.get_selection_indices() + if first and last: + head = text.index(first + " linestart") + tail = text.index(last + "-1c lineend +1c") + else: + head = text.index("insert linestart") + tail = text.index("insert lineend +1c") + chars = text.get(head, tail) + lines = chars.split("\n") + return head, tail, chars, lines + + def set_region(self, head, tail, chars, lines): + text = self.text + newchars = "\n".join(lines) + if newchars == chars: + text.bell() + return + text.tag_remove("sel", "1.0", "end") + text.mark_set("insert", head) + text.undo_block_start() + text.delete(head, tail) + text.insert(head, newchars) + text.undo_block_stop() + text.tag_add("sel", head, "insert") + + # Make string that displays as n leading blanks. + + def _make_blanks(self, n): + if self.usetabs: + ntabs, nspaces = divmod(n, self.tabwidth) + return '\t' * ntabs + ' ' * nspaces + else: + return ' ' * n + + # Delete from beginning of line to insert point, then reinsert + # column logical (meaning use tabs if appropriate) spaces. + + def reindent_to(self, column): + text = self.text + text.undo_block_start() + if text.compare("insert linestart", "!=", "insert"): + text.delete("insert linestart", "insert") + if column: + text.insert("insert", self._make_blanks(column)) + text.undo_block_stop() + + def _asktabwidth(self): + return self.askinteger( + "Tab width", + "Columns per tab? (2-16)", + parent=self.text, + initialvalue=self.indentwidth, + minvalue=2, + maxvalue=16) + + # Guess indentwidth from text content. + # Return guessed indentwidth. This should not be believed unless + # it's in a reasonable range (e.g., it will be 0 if no indented + # blocks are found). + + def guess_indent(self): + opener, indented = IndentSearcher(self.text, self.tabwidth).run() + if opener and indented: + raw, indentsmall = classifyws(opener, self.tabwidth) + raw, indentlarge = classifyws(indented, self.tabwidth) + else: + indentsmall = indentlarge = 0 + return indentlarge - indentsmall + +# "line.col" -> line, as an int +def index2line(index): + return int(float(index)) + +# Look at the leading whitespace in s. +# Return pair (# of leading ws characters, +# effective # of leading blanks after expanding +# tabs to width tabwidth) + +def classifyws(s, tabwidth): + raw = effective = 0 + for ch in s: + if ch == ' ': + raw = raw + 1 + effective = effective + 1 + elif ch == '\t': + raw = raw + 1 + effective = (effective // tabwidth + 1) * tabwidth + else: + break + return raw, effective + +import tokenize +_tokenize = tokenize +del tokenize + +class IndentSearcher(object): + + # .run() chews over the Text widget, looking for a block opener + # and the stmt following it. Returns a pair, + # (line containing block opener, line containing stmt) + # Either or both may be None. + + def __init__(self, text, tabwidth): + self.text = text + self.tabwidth = tabwidth + self.i = self.finished = 0 + self.blkopenline = self.indentedline = None + + def readline(self): + if self.finished: + return "" + i = self.i = self.i + 1 + mark = repr(i) + ".0" + if self.text.compare(mark, ">=", "end"): + return "" + return self.text.get(mark, mark + " lineend+1c") + + def tokeneater(self, type, token, start, end, line, + INDENT=_tokenize.INDENT, + NAME=_tokenize.NAME, + OPENERS=('class', 'def', 'for', 'if', 'try', 'while')): + if self.finished: + pass + elif type == NAME and token in OPENERS: + self.blkopenline = line + elif type == INDENT and self.blkopenline: + self.indentedline = line + self.finished = 1 + + def run(self): + save_tabsize = _tokenize.tabsize + _tokenize.tabsize = self.tabwidth + try: + try: + tokens = _tokenize.generate_tokens(self.readline) + for token in tokens: + self.tokeneater(*token) + except (_tokenize.TokenError, SyntaxError): + # since we cut off the tokenizer early, we can trigger + # spurious errors + pass + finally: + _tokenize.tabsize = save_tabsize + return self.blkopenline, self.indentedline + +### end autoindent code ### + +def prepstr(s): + # Helper to extract the underscore from a string, e.g. + # prepstr("Co_py") returns (2, "Copy"). + i = s.find('_') + if i >= 0: + s = s[:i] + s[i+1:] + return i, s + + +keynames = { + 'bracketleft': '[', + 'bracketright': ']', + 'slash': '/', +} + +def get_accelerator(keydefs, eventname): + keylist = keydefs.get(eventname) + # issue10940: temporary workaround to prevent hang with OS X Cocoa Tk 8.5 + # if not keylist: + if (not keylist) or (macosxSupport.isCocoaTk() and eventname in { + "<<open-module>>", + "<<goto-line>>", + "<<change-indentwidth>>"}): + return "" + s = keylist[0] + s = re.sub(r"-[a-z]\b", lambda m: m.group().upper(), s) + s = re.sub(r"\b\w+\b", lambda m: keynames.get(m.group(), m.group()), s) + s = re.sub("Key-", "", s) + s = re.sub("Cancel","Ctrl-Break",s) # dscherer@cmu.edu + s = re.sub("Control-", "Ctrl-", s) + s = re.sub("-", "+", s) + s = re.sub("><", " ", s) + s = re.sub("<", "", s) + s = re.sub(">", "", s) + return s + + +def fixwordbreaks(root): + # Make sure that Tk's double-click and next/previous word + # operations use our definition of a word (i.e. an identifier) + tk = root.tk + tk.call('tcl_wordBreakAfter', 'a b', 0) # make sure word.tcl is loaded + tk.call('set', 'tcl_wordchars', '[a-zA-Z0-9_]') + tk.call('set', 'tcl_nonwordchars', '[^a-zA-Z0-9_]') + + +def _editor_window(parent): # htest # + # error if close master window first - timer event, after script + root = parent + fixwordbreaks(root) + if sys.argv[1:]: + filename = sys.argv[1] + else: + filename = None + macosxSupport.setupApp(root, None) + edit = EditorWindow(root=root, filename=filename) + edit.text.bind("<<close-all-windows>>", edit.close_event) + # Does not stop error, neither does following + # edit.text.bind("<<close-window>>", edit.close_event) + +if __name__ == '__main__': + from idlelib.idle_test.htest import run + run(_editor_window) |