# -*- coding: ISO-8859-1 -*- ''' an attempt to implement readline for Python in Python using ctypes''' import string import math import sys from glob import glob import os import re import traceback import operator import win32con as c32 import Console from Console import log from keysyms import key_text_to_keyinfo,printable_chars_in_codepage import clipboard import ctypes enable_win32_clipboard=True #assumes data on clipboard is path if shorter than 300 characters and doesn't contain \t or \n #and replace \ with / for easier use in ipython enable_ipython_paste_for_paths=True #automatically convert tabseparated data to list of lists or array constructors enable_ipython_paste_list_of_lists=True def quote_char(c): if c in printable_chars_in_codepage: return c elif ' ' <= c <= '~': return c else: return repr(c)[1:-1] class Readline: def __init__(self): self.startup_hook = None self.pre_input_hook = None self.completer = None self.completer_delims = " \t\n\"\\'`@$><=;|&{(" self.history_length = -1 self.history = [] # strings for previous commands self.history_cursor = 0 self.undo_stack = [] # each entry is a tuple with cursor_position and line_text self.line_buffer = [] self.line_cursor = 0 self.console = Console.Console() self.size = self.console.size() self.prompt_color = None self.command_color = None self.key_dispatch = {} self.previous_func = None self.first_prompt = True self.next_meta = False # True to force meta on next character self.tabstop = 4 self.emacs_editing_mode(None) self.begidx = 0 self.endidx = 0 # variables you can control with parse_and_bind self.show_all_if_ambiguous = 'off' self.mark_directories = 'on' self.bell_style = 'none' self.mark=-1 def _bell(self): '''ring the bell if requested.''' if self.bell_style == 'none': self.console.bell() def _quoted_text(self): quoted = [ quote_char(c) for c in self.line_buffer ] self.line_char_width = [ len(c) for c in quoted ] return ''.join(quoted) def _line_text(self): return ''.join(self.line_buffer) def _set_line(self, text, cursor=None): self.line_buffer = [ c for c in str(text) ] if cursor is None: self.line_cursor = len(self.line_buffer) else: self.line_cursor = cursor def _reset_line(self): self.line_buffer = [] self.line_cursor = 0 self.undo_stack = [] def _clear_after(self): c = self.console x, y = c.pos() w, h = c.size() c.rectangle((x, y, w, y+1)) c.rectangle((0, y+1, w, min(y+3,h))) def _set_cursor(self): c = self.console xc, yc = self.prompt_end_pos w, h = c.size() xc += reduce(operator.add, self.line_char_width[0:self.line_cursor], 0) while(xc > w): xc -= w yc += 1 c.pos(xc, yc) def _print_prompt(self): c = self.console log('prompt="%s"' % repr(self.prompt)) x, y = c.pos() n = c.write_scrolling(self.prompt, self.prompt_color) self.prompt_begin_pos = (x, y - n) self.prompt_end_pos = c.pos() self.size = c.size() def _update_prompt_pos(self, n): if n != 0: bx, by = self.prompt_begin_pos ex, ey = self.prompt_end_pos self.prompt_begin_pos = (bx, by - n) self.prompt_end_pos = (ex, ey - n) def readline(self, prompt=''): '''Try to act like GNU readline.''' # handle startup_hook if self.first_prompt: self.first_prompt = False if self.startup_hook: try: self.startup_hook() except: print 'startup hook failed' traceback.print_exc() c = self.console self._reset_line() self.prompt = prompt self._print_prompt() if self.pre_input_hook: try: self.pre_input_hook() except: print 'pre_input_hook failed' traceback.print_exc() self.pre_input_hook = None while 1: c.pos(*self.prompt_end_pos) ltext = self._quoted_text() n = c.write_scrolling(ltext, self.command_color) self._update_prompt_pos(n) self._clear_after() self._set_cursor() event = c.getkeypress() if self.next_meta: self.next_meta = False control, meta, shift, code = event.keyinfo event.keyinfo = (control, True, shift, code) try: dispatch_func = self.key_dispatch[event.keyinfo] except KeyError: c.bell() continue r = None if dispatch_func: r = dispatch_func(event) ltext = self._line_text() if self.undo_stack and ltext == self.undo_stack[-1][1]: self.undo_stack[-1][0] = self.line_cursor else: self.undo_stack.append([self.line_cursor, ltext]) self.previous_func = dispatch_func if r: break c.write('\r\n') rtext = self._line_text() self.add_history(rtext) log('returning(%s)' % rtext) return rtext + '\n' def parse_and_bind(self, string): '''Parse and execute single line of a readline init file.''' try: log('parse_and_bind("%s")' % string) if string.startswith('#'): return if string.startswith('set'): m = re.compile(r'set\s+([-a-zA-Z0-9]+)\s+(.+)\s*$').match(string) if m: var_name = m.group(1) val = m.group(2) try: setattr(self, var_name.replace('-','_'), val) except AttributeError: log('unknown var="%s" val="%s"' % (var_name, val)) else: log('bad set "%s"' % string) return log('before') m = re.compile(r'\s*(.+)\s*:\s*([-a-zA-Z]+)\s*$').match(string) log('here') if m: key = m.group(1) func_name = m.group(2) py_name = func_name.replace('-', '_') try: func = getattr(self, py_name) except AttributeError: log('unknown func key="%s" func="%s"' % (key, func_name)) print 'unknown function to bind: "%s"' % func_name self._bind_key(key, func) except: log('error') traceback.print_exc() raise log('return') def get_line_buffer(self): '''Return the current contents of the line buffer.''' return "".join(self.line_buffer) def insert_text(self, string): '''Insert text into the command line.''' for c in string: self.line_buffer.insert(self.line_cursor, c) self.line_cursor += 1 def read_init_file(self, filename=None): '''Parse a readline initialization file. The default filename is the last filename used.''' log('read_init_file("%s")' % filename) def read_history_file(self, filename=os.path.expanduser('~/.history')): '''Load a readline history file. The default filename is ~/.history.''' try: for line in open(filename, 'rt'): self.add_history(line.rstrip()) except IOError: self.history = [] self.history_cursor = 0 raise IOError def write_history_file(self, filename=os.path.expanduser('~/.history')): '''Save a readline history file. The default filename is ~/.history.''' fp = open(filename, 'wb') for line in self.history: fp.write(line) fp.write('\n') fp.close() def get_history_length(self, ): '''Return the desired length of the history file. Negative values imply unlimited history file size.''' return self.history_length def set_history_length(self, length): '''Set the number of lines to save in the history file. write_history_file() uses this value to truncate the history file when saving. Negative values imply unlimited history file size. ''' self.history_length = length def set_startup_hook(self, function=None): '''Set or remove the startup_hook function. If function is specified, it will be used as the new startup_hook function; if omitted or None, any hook function already installed is removed. The startup_hook function is called with no arguments just before readline prints the first prompt. ''' self.startup_hook = function def set_pre_input_hook(self, function=None): '''Set or remove the pre_input_hook function. If function is specified, it will be used as the new pre_input_hook function; if omitted or None, any hook function already installed is removed. The pre_input_hook function is called with no arguments after the first prompt has been printed and just before readline starts reading input characters. ''' self.pre_input_hook = function def set_completer(self, function=None): '''Set or remove the completer function. If function is specified, it will be used as the new completer function; if omitted or None, any completer function already installed is removed. The completer function is called as function(text, state), for state in 0, 1, 2, ..., until it returns a non-string value. It should return the next possible completion starting with text. ''' log('set_completer') self.completer = function def get_completer(self): '''Get the completer function. ''' log('get_completer') return self.completer def get_begidx(self): '''Get the beginning index of the readline tab-completion scope.''' return self.begidx def get_endidx(self): '''Get the ending index of the readline tab-completion scope.''' return self.endidx def set_completer_delims(self, string): '''Set the readline word delimiters for tab-completion.''' self.completer_delims = string def get_completer_delims(self): '''Get the readline word delimiters for tab-completion.''' return self.completer_delims def add_history(self, line): '''Append a line to the history buffer, as if it was the last line typed.''' if not line: pass elif len(self.history) > 0 and self.history[-1] == line: pass else: self.history.append(line) if self.history_length > 0 and len(self.history) > self.history_length: self.history = self.history[-self.history_length:] self.history_cursor = len(self.history) ### Methods below here are bindable functions def beginning_of_line(self, e): # (C-a) '''Move to the start of the current line. ''' self.line_cursor = 0 def end_of_line(self, e): # (C-e) '''Move to the end of the line. ''' self.line_cursor = len(self.line_buffer) def forward_char(self, e): # (C-f) '''Move forward a character. ''' if self.line_cursor < len(self.line_buffer): self.line_cursor += 1 else: self._bell() def backward_char(self, e): # (C-b) '''Move back a character. ''' if self.line_cursor > 0: self.line_cursor -= 1 else: self._bell() def forward_word(self, e): # (M-f) '''Move forward to the end of the next word. Words are composed of letters and digits.''' L = len(self.line_buffer) while self.line_cursor < L: self.line_cursor += 1 if self.line_cursor == L: break if self.line_buffer[self.line_cursor] not in string.letters + string.digits: break def backward_word(self, e): # (M-b) '''Move back to the start of the current or previous word. Words are composed of letters and digits.''' while self.line_cursor > 0: self.line_cursor -= 1 if self.line_buffer[self.line_cursor] not in string.letters + string.digits: break def clear_screen(self, e): # (C-l) '''Clear the screen and redraw the current line, leaving the current line at the top of the screen.''' self.console.page() def redraw_current_line(self, e): # () '''Refresh the current line. By default, this is unbound.''' pass def accept_line(self, e): # (Newline or Return) '''Accept the line regardless of where the cursor is. If this line is non-empty, it may be added to the history list for future recall with add_history(). If this line is a modified history line, the history line is restored to its original state.''' return True def previous_history(self, e): # (C-p) '''Move back through the history list, fetching the previous command. ''' if self.history_cursor > 0: self.history_cursor -= 1 line = self.history[self.history_cursor] self._set_line(line) else: self._bell() def next_history(self, e): # (C-n) '''Move forward through the history list, fetching the next command. ''' if self.history_cursor < len(self.history) - 1: self.history_cursor += 1 line = self.history[self.history_cursor] self._set_line(line) elif self.undo_stack: cursor, text = self.undo_stack[-1] self._set_line(text, cursor) else: self._bell() def beginning_of_history(self, e): # (M-<) '''Move to the first line in the history.''' self.history_cursor = 0 if len(self.history) > 0: self._set_line(self.history[0]) else: self._bell() def end_of_history(self, e): # (M->) '''Move to the end of the input history, i.e., the line currently being entered.''' if self.undo_stack: cursor, text = self.undo_stack[-1] self._set_line(text, cursor) else: self._bell() def _i_search(self, direction, init_event): c = self.console line = self._line_text() query = '' hc_start = self.history_cursor + direction hc = hc_start while 1: x, y = self.prompt_end_pos c.pos(0, y) if direction < 0: prompt = 'reverse-i-search' else: prompt = 'forward-i-search' scroll = c.write_scrolling("%s`%s': %s" % (prompt, query, line)) self._update_prompt_pos(scroll) self._clear_after() event = c.getkeypress() if event.keysym == 'BackSpace': if len(query) > 0: query = query[:-1] hc = hc_start else: c.bell() elif event.char in string.letters + string.digits + string.punctuation + ' ': query += event.char hc = hc_start elif event.keyinfo == init_event.keyinfo: hc += direction else: if event.keysym != 'Return': c.bell() break while (direction < 0 and hc >= 0) or (direction > 0 and hc < len(self.history)): if self.history[hc].find(query) >= 0: break hc += direction else: c.bell() continue line = self.history[hc] px, py = self.prompt_begin_pos c.pos(0, py) self._set_line(line) self._print_prompt() def reverse_search_history(self, e): # (C-r) '''Search backward starting at the current line and moving up through the history as necessary. This is an incremental search.''' self._i_search(-1, e) def forward_search_history(self, e): # (C-s) '''Search forward starting at the current line and moving down through the the history as necessary. This is an incremental search.''' self._i_search(1, e) def _non_i_search(self, direction): c = self.console line = self._line_text() query = '' while 1: c.pos(*self.prompt_end_pos) scroll = c.write_scrolling(":%s" % query) self._update_prompt_pos(scroll) self._clear_after() event = c.getkeypress() if event.keysym == 'BackSpace': if len(query) > 0: query = query[:-1] else: break elif event.char in string.letters + string.digits + string.punctuation + ' ': query += event.char elif event.keysym == 'Return': break else: c.bell() if query: hc = self.history_cursor - 1 while (direction < 0 and hc >= 0) or (direction > 0 and hc < len(self.history)): if self.history[hc].find(query) >= 0: self._set_line(self.history[hc]) self.history_cursor = hc return hc += direction else: c.bell() def non_incremental_reverse_search_history(self, e): # (M-p) '''Search backward starting at the current line and moving up through the history as necessary using a non-incremental search for a string supplied by the user.''' self._non_i_search(-1) def non_incremental_forward_search_history(self, e): # (M-n) '''Search forward starting at the current line and moving down through the the history as necessary using a non-incremental search for a string supplied by the user.''' self._non_i_search(1) def _search(self, direction): c = self.console if (self.previous_func != self.history_search_forward and self.previous_func != self.history_search_backward): self.query = ''.join(self.line_buffer[0:self.line_cursor]) hc = self.history_cursor + direction while (direction < 0 and hc >= 0) or (direction > 0 and hc < len(self.history)): h = self.history[hc] if not self.query: self._set_line(h) self.history_cursor = hc return elif h.startswith(self.query) and h != self._line_text: self._set_line(h, len(self.query)) self.history_cursor = hc return hc += direction else: self._set_line(self.query) c.bell() def history_search_forward(self, e): # () '''Search forward through the history for the string of characters between the start of the current line and the point. This is a non-incremental search. By default, this command is unbound.''' self._search(1) def history_search_backward(self, e): # () '''Search backward through the history for the string of characters between the start of the current line and the point. This is a non-incremental search. By default, this command is unbound.''' self._search(-1) def yank_nth_arg(self, e): # (M-C-y) '''Insert the first argument to the previous command (usually the second word on the previous line) at point. With an argument n, insert the nth word from the previous command (the words in the previous command begin with word 0). A negative argument inserts the nth word from the end of the previous command.''' pass def yank_last_arg(self, e): # (M-. or M-_) '''Insert last argument to the previous command (the last word of the previous history entry). With an argument, behave exactly like yank-nth-arg. Successive calls to yank-last-arg move back through the history list, inserting the last argument of each line in turn.''' pass def delete_char(self, e): # (C-d) '''Delete the character at point. If point is at the beginning of the line, there are no characters in the line, and the last character typed was not bound to delete-char, then return EOF.''' if len(self.line_buffer) == 0: if self.previous_func != self.delete_char: raise EOFError self._bell() if self.line_cursor < len(self.line_buffer): del self.line_buffer[self.line_cursor] else: self._bell() def backward_delete_char(self, e): # (Rubout) '''Delete the character behind the cursor. A numeric argument means to kill the characters instead of deleting them.''' if self.line_cursor > 0: del self.line_buffer[self.line_cursor-1] self.line_cursor -= 1 def forward_backward_delete_char(self, e): # () '''Delete the character under the cursor, unless the cursor is at the end of the line, in which case the character behind the cursor is deleted. By default, this is not bound to a key.''' pass def quoted_insert(self, e): # (C-q or C-v) '''Add the next character typed to the line verbatim. This is how to insert key sequences like C-q, for example.''' e = self.console.getkeypress() self.line_buffer.insert(self.line_cursor, e.char) self.line_cursor += 1 def tab_insert(self, e): # (M-TAB) '''Insert a tab character. ''' ws = ' ' * (self.tabstop - (self.line_cursor%self.tabstop)) self.insert_text(ws) def self_insert(self, e): # (a, b, A, 1, !, ...) '''Insert yourself. ''' if ord(e.char)!=0: #don't insert null character in buffer, can happen with dead keys. self.line_buffer.insert(self.line_cursor, e.char) self.line_cursor += 1 def transpose_chars(self, e): # (C-t) '''Drag the character before the cursor forward over the character at the cursor, moving the cursor forward as well. If the insertion point is at the end of the line, then this transposes the last two characters of the line. Negative arguments have no effect.''' pass def transpose_words(self, e): # (M-t) '''Drag the word before point past the word after point, moving point past that word as well. If the insertion point is at the end of the line, this transposes the last two words on the line.''' pass def upcase_word(self, e): # (M-u) '''Uppercase the current (or following) word. With a negative argument, uppercase the previous word, but do not move the cursor.''' pass def downcase_word(self, e): # (M-l) '''Lowercase the current (or following) word. With a negative argument, lowercase the previous word, but do not move the cursor.''' pass def capitalize_word(self, e): # (M-c) '''Capitalize the current (or following) word. With a negative argument, capitalize the previous word, but do not move the cursor.''' pass def overwrite_mode(self, e): # () '''Toggle overwrite mode. With an explicit positive numeric argument, switches to overwrite mode. With an explicit non-positive numeric argument, switches to insert mode. This command affects only emacs mode; vi mode does overwrite differently. Each call to readline() starts in insert mode. In overwrite mode, characters bound to self-insert replace the text at point rather than pushing the text to the right. Characters bound to backward-delete-char replace the character before point with a space.''' pass def kill_line(self, e): # (C-k) '''Kill the text from point to the end of the line. ''' if enable_win32_clipboard: toclipboard="".join(self.line_buffer[self.line_cursor:]) clipboard.set_clipboard_text(toclipboard) self.line_buffer[self.line_cursor:] = [] def backward_kill_line(self, e): # (C-x Rubout) '''Kill backward to the beginning of the line. ''' self.line_buffer[:self.line_cursor] = [] self.line_cursor = 0 def unix_line_discard(self, e): # (C-u) '''Kill backward from the cursor to the beginning of the current line. ''' # how is this different from backward_kill_line? self.line_buffer[:self.line_cursor] = [] self.line_cursor = 0 def kill_whole_line(self, e): # () '''Kill all characters on the current line, no matter where point is. By default, this is unbound.''' pass def kill_word(self, e): # (M-d) '''Kill from point to the end of the current word, or if between words, to the end of the next word. Word boundaries are the same as forward-word.''' begin = self.line_cursor self.forward_word(e) self.line_buffer[begin:self.line_cursor] = [] self.line_cursor = begin def backward_kill_word(self, e): # (M-DEL) '''Kill the word behind point. Word boundaries are the same as backward-word. ''' begin = self.line_cursor self.backward_word(e) self.line_buffer[self.line_cursor:begin] = [] def unix_word_rubout(self, e): # (C-w) '''Kill the word behind point, using white space as a word boundary. The killed text is saved on the kill-ring.''' begin = self.line_cursor while self.line_cursor > 0: self.line_cursor -= 1 if self.line_buffer[self.line_cursor] == ' ': break self.line_buffer[self.line_cursor:begin] = [] def delete_horizontal_space(self, e): # () '''Delete all spaces and tabs around point. By default, this is unbound. ''' pass def kill_region(self, e): # () '''Kill the text in the current region. By default, this command is unbound. ''' pass def copy_region_as_kill(self, e): # () '''Copy the text in the region to the kill buffer, so it can be yanked right away. By default, this command is unbound.''' pass def copy_region_to_clipboard(self, e): # () '''Copy the text in the region to the windows clipboard.''' if enable_win32_clipboard: mark=min(self.mark,len(self.line_buffer)) cursor=min(self.line_cursor,len(self.line_buffer)) if self.mark==-1: return begin=min(cursor,mark) end=max(cursor,mark) toclipboard="".join(self.line_buffer[begin:end]) clipboard.SetClipboardText(str(toclipboard)) def copy_backward_word(self, e): # () '''Copy the word before point to the kill buffer. The word boundaries are the same as backward-word. By default, this command is unbound.''' pass def copy_forward_word(self, e): # () '''Copy the word following point to the kill buffer. The word boundaries are the same as forward-word. By default, this command is unbound.''' pass def paste(self,e): '''Paste windows clipboard''' if enable_win32_clipboard: txt=clipboard.get_clipboard_text_and_convert(False) self.insert_text(txt) def ipython_paste(self,e): '''Paste windows clipboard. If enable_ipython_paste_list_of_lists is True then try to convert tabseparated data to repr of list of lists or repr of array''' if enable_win32_clipboard: txt=clipboard.get_clipboard_text_and_convert( enable_ipython_paste_list_of_lists) if enable_ipython_paste_for_paths: if len(txt)<300 and ("\t" not in txt) and ("\n" not in txt): txt=txt.replace("\\","/").replace(" ",r"\ ") self.insert_text(txt) def yank(self, e): # (C-y) '''Yank the top of the kill ring into the buffer at point. ''' pass def yank_pop(self, e): # (M-y) '''Rotate the kill-ring, and yank the new top. You can only do this if the prior command is yank or yank-pop.''' pass def digit_argument(self, e): # (M-0, M-1, ... M--) '''Add this digit to the argument already accumulating, or start a new argument. M-- starts a negative argument.''' pass def universal_argument(self, e): # () '''This is another way to specify an argument. If this command is followed by one or more digits, optionally with a leading minus sign, those digits define the argument. If the command is followed by digits, executing universal-argument again ends the numeric argument, but is otherwise ignored. As a special case, if this command is immediately followed by a character that is neither a digit or minus sign, the argument count for the next command is multiplied by four. The argument count is initially one, so executing this function the first time makes the argument count four, a second time makes the argument count sixteen, and so on. By default, this is not bound to a key.''' pass def _get_completions(self): '''Return a list of possible completions for the string ending at the point. Also set begidx and endidx in the process.''' completions = [] self.begidx = self.line_cursor self.endidx = self.line_cursor if self.completer: # get the string to complete while self.begidx > 0: self.begidx -= 1 if self.line_buffer[self.begidx] in self.completer_delims: self.begidx += 1 break text = ''.join(self.line_buffer[self.begidx:self.endidx]) log('complete text="%s"' % text) i = 0 while 1: try: r = self.completer(text, i) except: break i += 1 if r and r not in completions: completions.append(r) else: break log('text completions=%s' % completions) if not completions: # get the filename to complete while self.begidx > 0: self.begidx -= 1 if self.line_buffer[self.begidx] in ' \t\n': self.begidx += 1 break text = ''.join(self.line_buffer[self.begidx:self.endidx]) log('file complete text="%s"' % text) completions = glob(os.path.expanduser(text) + '*') if self.mark_directories == 'on': mc = [] for f in completions: if os.path.isdir(f): mc.append(f + os.sep) else: mc.append(f) completions = mc log('fnames=%s' % completions) return completions def _display_completions(self, completions): if not completions: return self.console.write('\n') wmax = max(map(len, completions)) w, h = self.console.size() cols = max(1, int((w-1) / (wmax+1))) rows = int(math.ceil(float(len(completions)) / cols)) for row in range(rows): s = '' for col in range(cols): i = col*rows + row if i < len(completions): self.console.write(completions[i].ljust(wmax+1)) self.console.write('\n') self._print_prompt() def complete(self, e): # (TAB) '''Attempt to perform completion on the text before point. The actual completion performed is application-specific. The default is filename completion.''' completions = self._get_completions() if completions: cprefix = commonprefix(completions) rep = [ c for c in cprefix ] self.line_buffer[self.begidx:self.endidx] = rep self.line_cursor += len(rep) - (self.endidx - self.begidx) if len(completions) > 1: if self.show_all_if_ambiguous == 'on': self._display_completions(completions) else: self._bell() else: self._bell() def possible_completions(self, e): # (M-?) '''List the possible completions of the text before point. ''' completions = self._get_completions() self._display_completions(completions) def insert_completions(self, e): # (M-*) '''Insert all completions of the text before point that would have been generated by possible-completions.''' completions = self._get_completions() b = self.begidx e = self.endidx for comp in completions: rep = [ c for c in comp ] rep.append(' ') self.line_buffer[b:e] = rep b += len(rep) e = b self.line_cursor = b def menu_complete(self, e): # () '''Similar to complete, but replaces the word to be completed with a single match from the list of possible completions. Repeated execution of menu-complete steps through the list of possible completions, inserting each match in turn. At the end of the list of completions, the bell is rung (subject to the setting of bell-style) and the original text is restored. An argument of n moves n positions forward in the list of matches; a negative argument may be used to move backward through the list. This command is intended to be bound to TAB, but is unbound by default.''' pass def delete_char_or_list(self, e): # () '''Deletes the character under the cursor if not at the beginning or end of the line (like delete-char). If at the end of the line, behaves identically to possible-completions. This command is unbound by default.''' pass def start_kbd_macro(self, e): # (C-x () '''Begin saving the characters typed into the current keyboard macro. ''' pass def end_kbd_macro(self, e): # (C-x )) '''Stop saving the characters typed into the current keyboard macro and save the definition.''' pass def call_last_kbd_macro(self, e): # (C-x e) '''Re-execute the last keyboard macro defined, by making the characters in the macro appear as if typed at the keyboard.''' pass def re_read_init_file(self, e): # (C-x C-r) '''Read in the contents of the inputrc file, and incorporate any bindings or variable assignments found there.''' pass def abort(self, e): # (C-g) '''Abort the current editing command and ring the terminals bell (subject to the setting of bell-style).''' self._bell() def do_uppercase_version(self, e): # (M-a, M-b, M-x, ...) '''If the metafied character x is lowercase, run the command that is bound to the corresponding uppercase character.''' pass def prefix_meta(self, e): # (ESC) '''Metafy the next character typed. This is for keyboards without a meta key. Typing ESC f is equivalent to typing M-f. ''' self.next_meta = True def undo(self, e): # (C-_ or C-x C-u) '''Incremental undo, separately remembered for each line.''' log(self.undo_stack) if len(self.undo_stack) >= 2: self.undo_stack.pop() cursor, text = self.undo_stack.pop() else: cursor = 0 text = '' self.undo_stack = [] self._set_line(text, cursor) def revert_line(self, e): # (M-r) '''Undo all changes made to this line. This is like executing the undo command enough times to get back to the beginning.''' pass def tilde_expand(self, e): # (M-~) '''Perform tilde expansion on the current word.''' pass def set_mark(self, e): # (C-@) '''Set the mark to the point. If a numeric argument is supplied, the mark is set to that position.''' self.mark=self.line_cursor def exchange_point_and_mark(self, e): # (C-x C-x) '''Swap the point with the mark. The current cursor position is set to the saved position, and the old cursor position is saved as the mark.''' pass def character_search(self, e): # (C-]) '''A character is read and point is moved to the next occurrence of that character. A negative count searches for previous occurrences.''' pass def character_search_backward(self, e): # (M-C-]) '''A character is read and point is moved to the previous occurrence of that character. A negative count searches for subsequent occurrences.''' pass def insert_comment(self, e): # (M-#) '''Without a numeric argument, the value of the comment-begin variable is inserted at the beginning of the current line. If a numeric argument is supplied, this command acts as a toggle: if the characters at the beginning of the line do not match the value of comment-begin, the value is inserted, otherwise the characters in comment-begin are deleted from the beginning of the line. In either case, the line is accepted as if a newline had been typed.''' pass def dump_functions(self, e): # () '''Print all of the functions and their key bindings to the Readline output stream. If a numeric argument is supplied, the output is formatted in such a way that it can be made part of an inputrc file. This command is unbound by default.''' pass def dump_variables(self, e): # () '''Print all of the settable variables and their values to the Readline output stream. If a numeric argument is supplied, the output is formatted in such a way that it can be made part of an inputrc file. This command is unbound by default.''' pass def dump_macros(self, e): # () '''Print all of the Readline key sequences bound to macros and the strings they output. If a numeric argument is supplied, the output is formatted in such a way that it can be made part of an inputrc file. This command is unbound by default.''' pass def _bind_key(self, key, func): '''setup the mapping from key to call the function.''' keyinfo = key_text_to_keyinfo(key) self.key_dispatch[keyinfo] = func def emacs_editing_mode(self, e): # (C-e) '''When in vi command mode, this causes a switch to emacs editing mode.''' #insert printable chars available from codepage for char in printable_chars_in_codepage: self._bind_key(char, self.self_insert) # make ' ' to ~ self insert for c in range(ord(' '), 127): self._bind_key('"%s"' % chr(c), self.self_insert) # I often accidentally hold the shift or control while typing space self._bind_key('Shift-space', self.self_insert) self._bind_key('Control-space', self.self_insert) self._bind_key('Return', self.accept_line) self._bind_key('Left', self.backward_char) self._bind_key('Control-b', self.backward_char) self._bind_key('Right', self.forward_char) self._bind_key('Control-f', self.forward_char) self._bind_key('BackSpace', self.backward_delete_char) self._bind_key('Home', self.beginning_of_line) self._bind_key('End', self.end_of_line) self._bind_key('Delete', self.delete_char) self._bind_key('Control-d', self.delete_char) self._bind_key('Clear', self.clear_screen) self._bind_key('Alt-f', self.forward_word) self._bind_key('Alt-b', self.backward_word) self._bind_key('Control-l', self.clear_screen) self._bind_key('Control-p', self.previous_history) self._bind_key('Up', self.history_search_backward) self._bind_key('Control-n', self.next_history) self._bind_key('Down', self.history_search_forward) self._bind_key('Control-a', self.beginning_of_line) self._bind_key('Control-e', self.end_of_line) self._bind_key('Alt-<', self.beginning_of_history) self._bind_key('Alt->', self.end_of_history) self._bind_key('Control-r', self.reverse_search_history) self._bind_key('Control-s', self.forward_search_history) self._bind_key('Alt-p', self.non_incremental_reverse_search_history) self._bind_key('Alt-n', self.non_incremental_forward_search_history) self._bind_key('Control-z', self.undo) self._bind_key('Control-_', self.undo) self._bind_key('Escape', self.prefix_meta) self._bind_key('Meta-d', self.kill_word) self._bind_key('Meta-Delete', self.backward_kill_word) self._bind_key('Control-w', self.unix_word_rubout) self._bind_key('Control-Shift-v', self.quoted_insert) self._bind_key('Control-v', self.paste) self._bind_key('Alt-v', self.ipython_paste) self._bind_key('Control-y', self.paste) self._bind_key('Control-k', self.kill_line) self._bind_key('Control-m', self.set_mark) self._bind_key('Control-q', self.copy_region_to_clipboard) # Add keybindings for numpad # first the number keys self._bind_key('NUMPAD0', self.self_insert) self._bind_key('NUMPAD1', self.self_insert) self._bind_key('NUMPAD2', self.self_insert) self._bind_key('NUMPAD3', self.self_insert) self._bind_key('NUMPAD4', self.self_insert) self._bind_key('NUMPAD5', self.self_insert) self._bind_key('NUMPAD6', self.self_insert) self._bind_key('NUMPAD7', self.self_insert) self._bind_key('NUMPAD8', self.self_insert) self._bind_key('NUMPAD9', self.self_insert) # then the others: / * - + self._bind_key('Divide', self.self_insert) self._bind_key('Multiply', self.self_insert) self._bind_key('Add', self.self_insert) self._bind_key('Subtract', self.self_insert) # the decimal separator: '.' on US keyboards, ',' on DE one's self._bind_key('VK_DECIMAL', self.self_insert) def vi_editing_mode(self, e): # (M-C-j) '''When in emacs editing mode, this causes a switch to vi editing mode.''' pass def CTRL(c): '''make a control character''' assert '@' <= c <= '_' return chr(ord(c) - ord('@')) # make it case insensitive def commonprefix(m): "Given a list of pathnames, returns the longest common leading component" if not m: return '' prefix = m[0] for item in m: for i in range(len(prefix)): if prefix[:i+1].lower() != item[:i+1].lower(): prefix = prefix[:i] if i == 0: return '' break return prefix # create a Readline object to contain the state rl = Readline() def GetOutputFile(): '''Return the console object used by readline so that it can be used for printing in color.''' return rl.console # make these available so this looks like the python readline module parse_and_bind = rl.parse_and_bind get_line_buffer = rl.get_line_buffer insert_text = rl.insert_text read_init_file = rl.read_init_file read_history_file = rl.read_history_file write_history_file = rl.write_history_file get_history_length = rl.get_history_length set_history_length = rl.set_history_length set_startup_hook = rl.set_startup_hook set_pre_input_hook = rl.set_pre_input_hook set_completer = rl.set_completer get_completer = rl.get_completer get_begidx = rl.get_begidx get_endidx = rl.get_endidx set_completer_delims = rl.set_completer_delims get_completer_delims = rl.get_completer_delims add_history = rl.add_history if __name__ == '__main__': res = [ rl.readline('In[%d] ' % i) for i in range(3) ] print res else: #import wingdbstub Console.install_readline(rl.readline)