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# -*- coding: utf-8 -*-#*****************************************************************************# Copyright (C) 2003-2006 Gary Bishop.# Copyright (C) 2006 Jorgen Stenarson. <jorgen.stenarson@bostream.nu>## Distributed under the terms of the BSD License. The full license is in# the file COPYING, distributed as part of this software.#*****************************************************************************# table for translating virtual keys to X windows key symbolsfrom __future__ import print_function, unicode_literals, absolute_import
try: setexcept NameError: from sets import Set as set from pyreadline.unicode_helper import ensure_unicode
validkey =set(['cancel', 'backspace', 'tab', 'clear', 'return', 'shift_l', 'control_l', 'alt_l', 'pause', 'caps_lock', 'escape', 'space', 'prior', 'next', 'end', 'home', 'left', 'up', 'right', 'down', 'select', 'print', 'execute', 'snapshot', 'insert', 'delete', 'help', 'f1', 'f2', 'f3', 'f4', 'f5', 'f6', 'f7', 'f8', 'f9', 'f10', 'f11', 'f12', 'f13', 'f14', 'f15', 'f16', 'f17', 'f18', 'f19', 'f20', 'f21', 'f22', 'f23', 'f24', 'num_lock', 'scroll_lock', 'vk_apps', 'vk_processkey','vk_attn', 'vk_crsel', 'vk_exsel', 'vk_ereof', 'vk_play', 'vk_zoom', 'vk_noname', 'vk_pa1', 'vk_oem_clear', 'numpad0', 'numpad1', 'numpad2', 'numpad3', 'numpad4', 'numpad5', 'numpad6', 'numpad7', 'numpad8', 'numpad9', 'divide', 'multiply', 'add', 'subtract', 'vk_decimal'])
escape_sequence_to_special_key = {"\\e[a" : "up", "\\e[b" : "down", "del" : "delete"}
class KeyPress(object): def __init__(self, char="", shift=False, control=False, meta=False, keyname=""): if control or meta or shift: char = char.upper() self.info = dict(char=char, shift=shift, control=control, meta=meta, keyname=keyname) def create(name): def get(self): return self.info[name]
def set(self, value): self.info[name] = value return property(get, set) char = create("char") shift = create("shift") control = create("control") meta = create("meta") keyname = create("keyname") def __repr__(self): return "(%s,%s,%s,%s)"%tuple(map(ensure_unicode, self.tuple()))
def tuple(self): if self.keyname: return (self.control, self.meta, self.shift, self.keyname) else: if self.control or self.meta or self.shift: return (self.control, self.meta, self.shift, self.char.upper()) else: return (self.control, self.meta, self.shift, self.char)
def __eq__(self, other): if isinstance(other, KeyPress): s = self.tuple() o = other.tuple() return s == o else: return False
def make_KeyPress_from_keydescr(keydescr): keyinfo = KeyPress() if len(keydescr) > 2 and keydescr[:1] == '"' and keydescr[-1:] == '"': keydescr = keydescr[1:-1] while 1: lkeyname = keydescr.lower() if lkeyname.startswith('control-'): keyinfo.control = True keydescr = keydescr[8:] elif lkeyname.startswith('ctrl-'): keyinfo.control = True keydescr = keydescr[5:] elif keydescr.lower().startswith('\\c-'): keyinfo.control = True keydescr = keydescr[3:] elif keydescr.lower().startswith('\\m-'): keyinfo.meta = True keydescr = keydescr[3:] elif keydescr in escape_sequence_to_special_key: keydescr = escape_sequence_to_special_key[keydescr] elif lkeyname.startswith('meta-'): keyinfo.meta = True keydescr = keydescr[5:] elif lkeyname.startswith('alt-'): keyinfo.meta = True keydescr = keydescr[4:] elif lkeyname.startswith('shift-'): keyinfo.shift = True keydescr = keydescr[6:] else: if len(keydescr) > 1: if keydescr.strip().lower() in validkey: keyinfo.keyname = keydescr.strip().lower() keyinfo.char = "" else: raise IndexError("Not a valid key: '%s'"%keydescr) else: keyinfo.char = keydescr return keyinfo
if __name__ == "__main__": import startup
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