#
# coding=utf-8
"""Constants and definitions"""

import re

from colorama import Fore, Back

# Used for command parsing, output redirection, tab completion and word
# breaks. Do not change.
QUOTES = ['"', "'"]
REDIRECTION_PIPE = '|'
REDIRECTION_OUTPUT = '>'
REDIRECTION_APPEND = '>>'
REDIRECTION_CHARS = [REDIRECTION_PIPE, REDIRECTION_OUTPUT]
REDIRECTION_TOKENS = [REDIRECTION_PIPE, REDIRECTION_OUTPUT, REDIRECTION_APPEND]
COMMENT_CHAR = '#'
MULTILINE_TERMINATOR = ';'

# Regular expression to match ANSI escape codes
ANSI_ESCAPE_RE = re.compile(r'\x1b[^m]*m')

LINE_FEED = '\n'

# Values for colors setting
COLORS_NEVER = 'Never'
COLORS_TERMINAL = 'Terminal'
COLORS_ALWAYS = 'Always'


# Foreground color presets.
FG_COLORS = {
    'black': Fore.BLACK,
    'red': Fore.RED,
    'green': Fore.GREEN,
    'yellow': Fore.YELLOW,
    'blue': Fore.BLUE,
    'magenta': Fore.MAGENTA,
    'cyan': Fore.CYAN,
    'white': Fore.WHITE,
    'gray': Fore.LIGHTBLACK_EX,
    'lightred': Fore.LIGHTRED_EX,
    'lightblue': Fore.LIGHTBLUE_EX,
    'lightgreen': Fore.LIGHTGREEN_EX,
    'lightyellow': Fore.LIGHTYELLOW_EX,
    'lightmagenta': Fore.LIGHTMAGENTA_EX,
    'lightcyan': Fore.LIGHTCYAN_EX,
    'lightwhite': Fore.LIGHTWHITE_EX,
    'reset': Fore.RESET,
}

# Background color presets.
BG_COLORS = {
    'black': Back.BLACK,
    'red': Back.RED,
    'green': Back.GREEN,
    'yellow': Back.YELLOW,
    'blue': Back.BLUE,
    'magenta': Back.MAGENTA,
    'cyan': Back.CYAN,
    'white': Back.WHITE,
    'gray': Back.LIGHTBLACK_EX,
    'lightred': Back.LIGHTRED_EX,
    'lightblue': Back.LIGHTBLUE_EX,
    'lightgreen': Back.LIGHTGREEN_EX,
    'lightyellow': Back.LIGHTYELLOW_EX,
    'lightmagenta': Back.LIGHTMAGENTA_EX,
    'lightcyan': Back.LIGHTCYAN_EX,
    'lightwhite': Back.LIGHTWHITE_EX,
    'reset': Back.RESET,
}

DEFAULT_SHORTCUTS = {'?': 'help', '!': 'shell', '@': 'run_script', '@@': '_relative_run_script'}