# The MIT License

#

# Copyright (c) 2008 Simon de Vlieger

#

# Permission is hereby granted, free of charge, to any person obtaining a copy

# of this software and associated documentation files (the "Software"), to deal

# in the Software without restriction, including without limitation the rights

# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

# copies of the Software, and to permit persons to whom the Software is

# furnished to do so, subject to the following conditions:

#

# The above copyright notice and this permission notice shall be included in

# all copies or substantial portions of the Software.

#

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

# THE SOFTWARE.

import string

from typing import TypeVar, Generic, Tuple, Dict

T = TypeVar("T")

class KeyMap(Generic[T]):

def __init__(self, default: T) -> None:

self.map: Dict[str, T] = {}

self.default = default

def __getitem__(self, key: str) -> T:

if not key:

# Unbound key

return self.default

elif key in self.map:

return self.map[key]

else:

raise KeyError(

f"Configured keymap ({key}) does not exist in bpython.keys"

)

def __delitem__(self, key: str):

del self.map[key]

def __setitem__(self, key: str, value: T):

self.map[key] = value

cli_key_dispatch: KeyMap[Tuple[str, ...]] = KeyMap(tuple())

urwid_key_dispatch = KeyMap("")

# fill dispatch with letters

for c in string.ascii_lowercase:

cli_key_dispatch[f"C-{c}"] = (

chr(string.ascii_lowercase.index(c) + 1),

f"^{c.upper()}",

)

for c in string.ascii_lowercase:

urwid_key_dispatch[f"C-{c}"] = f"ctrl {c}"

urwid_key_dispatch[f"M-{c}"] = f"meta {c}"

# fill dispatch with cool characters

cli_key_dispatch["C-["] = (chr(27), "^[")

cli_key_dispatch["C-\\"] = (chr(28), "^\\")

cli_key_dispatch["C-]"] = (chr(29), "^]")

cli_key_dispatch["C-^"] = (chr(30), "^^")

cli_key_dispatch["C-_"] = (chr(31), "^_")

# fill dispatch with function keys

for x in range(1, 13):

cli_key_dispatch[f"F{x}"] = (f"KEY_F({x})",)

for x in range(1, 13):

urwid_key_dispatch[f"F{x}"] = f"f{x}"