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# CLI-Intermission
Tool to easily ask your user questions on the commandline. Interactive! abusing python prompt-toolkit's `Buffer` class.
Highly inspired by [go promptui](

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# Written by Sebastian Lohff <>
# Licensed under Apache License 2.0
from clintermission.climenu import CliMenu, CliMenuStyle, CliMenuCursor, CliMenuTheme
__all__ = [

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# Written by Sebastian Lohff <>
# Licensed under Apache License 2.0
from prompt_toolkit.application import Application
from prompt_toolkit.layout import Layout, Window, HSplit
from prompt_toolkit.buffer import Buffer
from prompt_toolkit.layout.controls import BufferControl
from prompt_toolkit.key_binding import KeyBindings
from prompt_toolkit.document import Document
from prompt_toolkit.layout.processors import Processor, Transformation
class CliMenuHeader:
"""Hold a menu header"""
def __init__(self, text, indent=False):
self.text = text
self.indent = indent
self.focusable = False
class CliMenuOption:
"""Hold a menu option"""
def __init__(self, text, num):
self.text = text
self.num = num
self.focusable = True
class CliMenuCursor:
"""Collection of cursors pointing at the active menu item"""
CLI_STAR = '*'
CLI_ARROW = '-->'
CLI_CAT = '=^.^='
CAT = '😸'
ARROW = ''
class CliMenuStyle:
"""Style for a menu
Allows to select header, option and selected option color
def __init__(self, option_style='', highlight_style='', header_style=''):
self.option_style = option_style
self.highlight_style = highlight_style
self.header_style = header_style
# self.option_color = '#aa0000'
# #self.highlight_color = 'fg:ansiblue bg:ansired bold'
# self.highlight_color = 'bold'
# self.cursor = ' --> '
# self.cursor = ' ● '
# self.no_cursor = ' '
# self.header_color = '#aa22cc'
# self.option_indent = 4
# self.header_indent = 4
class CliMenuTheme:
BASIC = CliMenuStyle()
BASIC_BOLD = CliMenuStyle(header_style='bold', highlight_style='bold')
RED = CliMenuStyle('#aa0000', '#ee0000', '#aa0000')
CYAN = CliMenuStyle('cyan', 'lightcyan', 'cyan')
BLUE = CliMenuStyle('ansiblue', 'ansired', 'ansiblue')
ANSI_CYAN = CliMenuStyle('ansicyan', 'ansibrightcyan', 'ansicyan')
class CliMenu:
default_stye = CliMenuTheme.BASIC
default_cursor = CliMenuCursor.TRIANGLE
def __init__(self, options=None, header=None, cursor=None, style=None,
indent=2, dedent_selection=False):
self._items = []
self._item_num = 0
self._ran = False
self._success = None
self._pos = 0
self._option_indent = indent
self._header_indent = indent
self._dedent_selection = dedent_selection
self._cursor = cursor
if not self._cursor:
self._cursor = self.default_cursor
self._style = style
if not self._style:
self._style = self.default_stye
if header:
if options:
for option in options:
def add_header(self, title, indent=False):
for text in title.split('\n'):
def add_option(self, text):
self._items.append(CliMenuOption(text, self._item_num))
self._item_num += 1
def get_selection(self):
if not self._ran:
return self._items[self._pos].num
def cursor(self):
return '{} '.format(self._cursor)
def no_cursor(self):
# cursor with spaces minus dedent
return ' ' * (len(self._cursor) + 1 * self._dedent_selection)
def _transform_line(self, ti):
style, text = list(ti.fragments)[0]
item = self._items[ti.lineno]
s = self._style
# cursor
indent = ''
prefix = ''
if item.focusable:
indent += ' ' * self._option_indent
if ti.lineno == self._pos:
prefix += '{} '.format(self._cursor)
style = s.highlight_style
prefix += ' ' * (len(self._cursor) + 1 + 1 * self._dedent_selection)
style = s.option_style
if item.indent:
indent += ' ' * self._header_indent
style = s.header_style
return Transformation([('', indent), (style, prefix + text)])
def next_item(self, direction):
if not any(item.focusable for item in self._items):
raise RuntimeError("No focusable item found")
while True:
self._pos = (self._pos + direction) % len(self._items)
if self._items[self._pos].focusable:
def _run(self):
class MenuColorizer(Processor):
def apply_transformation(_self, ti):
return self._transform_line(ti)
# keybindings
self._kb = KeyBindings()
def quit(event):
def down(event):
def up(event):
def accept(event):
self._success = True
# set initial pos
if not self._items[self._pos].focusable:
text = '\n'.join(map(lambda _x: _x.text, self._items))
self._doc = Document(text, cursor_position=self._pos)
self._buf = Buffer(read_only=True, document=self._doc)
self._bufctrl = BufferControl(self._buf,
split = HSplit([Window(self._bufctrl,
app = Application(layout=Layout(split),
self._ran = True

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name = clintermission
version = 0.1.0
author = Sebastian Lohff
author-email =
home-page =
description = Non-fullscreen commandline selection menu
long-description = file:
platform = any
keywords = cli, menu
classifiers =
Development Status :: 3 - Alpha
Intended Audience :: Developers
Programming Language :: Python :: 3
Programming Language :: Python :: 3.5
Programming Language :: Python :: 3.6
Programming Language :: Python :: 3.7
License :: OSI Approved :: Apache Software License
python_requires = >= 3.5
packages = clintermission
setup_requires =
setuptools > 30.4.0
install_requires =
max-line-length = 120

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#!/usr/bin/env python3
from setuptools import setup