fonts.py

#!/usr/bin/env python3
# -*- coding: UTF-8 -*-
"""
  fonts.py
  ========
  Description:           Substitutes alphanumeric characters with a 'font' from
                         the 'Mathematical Alphanumeric Symbols' block.
  Author:                Michael De Pasquale
  Creation Date:         2019-12-14
  Modification Date:     2019-12-16

"""

import argparse
import sys


class Font:

    def __init__(self, upper: str, lower: str, digits: str = None) -> None:
        if len(upper) != 26:
            raise ValueError('Expected 2y uppercase charaters')

        if len(lower) != 26:
            raise ValueError('Expected 26 lowercase charaters')

        if digits is not None and len(digits) != 10:
            raise ValueError('Expected 10 digits')

        self._upper = upper
        self._lower = lower
        self._digits = digits if digits else '0123456789'

    def mapChar(self, char: str) -> str:
        nr = ord(char)

        if 0x30 <= nr <= 0x39:  # 0-9
            return self._digits[nr & 0xF]

        if 0x41 <= nr <= 0x5A:  # A-Z
            return self._upper[nr - 0x41]

        if 0x61 <= nr <= 0x7A:  # a-z
            return self._upper[nr - 0x61]

        return char


FONTS = {
    'serif-bold': Font(
        '𝐀𝐁𝐂𝐃𝐄𝐅𝐆𝐇𝐈𝐉𝐊𝐋𝐌𝐍𝐎𝐏𝐐𝐑𝐒𝐓𝐔𝐕𝐖𝐗𝐘𝐙',
        '𝐚𝐛𝐜𝐝𝐞𝐟𝐠𝐡𝐢𝐣𝐤𝐥𝐦𝐧𝐨𝐩𝐪𝐫𝐬𝐭𝐮𝐯𝐰𝐱𝐲𝐳',
        '𝟎𝟏𝟐𝟑𝟒𝟓𝟔𝟕𝟖𝟗',
    ),
    'serif-italic': Font(
        '𝐴𝐵𝐶𝐷𝐸𝐹𝐺𝐻𝐼𝐽𝐾𝐿𝑀𝑁𝑂𝑃𝑄𝑅𝑆𝑇𝑈𝑉𝑊𝑋𝑌𝑍',
        '𝑎𝑏𝑐𝑑𝑒𝑓𝑔𝑕𝑖𝑗𝑘𝑙𝑚𝑛𝑜𝑝𝑞𝑟𝑠𝑡𝑢𝑣𝑤𝑥𝑦𝑧',
        '𝟎𝟏𝟐𝟑𝟒𝟓𝟔𝟕𝟖𝟗',
    ),
    'serif-bold-italic': Font(
        '𝑨𝑩𝑪𝑫𝑬𝑭𝑮𝑯𝑰𝑱𝑲𝑳𝑴𝑵𝑶𝑷𝑸𝑹𝑺𝑻𝑼𝑽𝑾𝑿𝒀𝒁',
        '𝒂𝒃𝒄𝒅𝒆𝒇𝒈𝒉𝒊𝒋𝒌𝒍𝒎𝒏𝒐𝒑𝒒𝒓𝒔𝒕𝒖𝒗𝒘𝒙𝒚𝒛',
        '𝟎𝟏𝟐𝟑𝟒𝟓𝟔𝟕𝟖𝟗',
    ),
    'sans': Font(
        '𝖠𝖡𝖢𝖣𝖤𝖥𝖦𝖧𝖨𝖩𝖪𝖫𝖬𝖭𝖮𝖯𝖰𝖱𝖲𝖳𝖴𝖵𝖶𝖷𝖸𝖹',
        '𝖺𝖻𝖼𝖽𝖾𝖿𝗀𝗁𝗂𝗃𝗄𝗅𝗆𝗇𝗈𝗉𝗊𝗋𝗌𝗍𝗎𝗏𝗐𝗑𝗒𝗓',
        '𝟢𝟣𝟤𝟥𝟦𝟧𝟨𝟩𝟪𝟫',
    ),
    'sans-italic': Font(
        '𝘈𝘉𝘊𝘋𝘌𝘍𝘎𝘏𝘐𝘑𝘒𝘓𝘔𝘕𝘖𝘗𝘘𝘙𝘚𝘛𝘜𝘝𝘞𝘟𝘠𝘡',
        '𝘢𝘣𝘤𝘥𝘦𝘧𝘨𝘩𝘪𝘫𝘬𝘭𝘮𝘯𝘰𝘱𝘲𝘳𝘴𝘵𝘶𝘷𝘸𝘹𝘺𝘻',
        '𝟢𝟣𝟤𝟥𝟦𝟧𝟨𝟩𝟪𝟫',
    ),
    'sans-bold-italic': Font(
        '𝘼𝘽𝘾𝘿𝙀𝙁𝙂𝙃𝙄𝙅𝙆𝙇𝙈𝙉𝙊𝙋𝙌𝙍𝙎𝙏𝙐𝙑𝙒𝙓𝙔𝙕',
        '𝙖𝙗𝙘𝙙𝙚𝙛𝙜𝙝𝙞𝙟𝙠𝙡𝙢𝙣𝙤𝙥𝙦𝙧𝙨𝙩𝙪𝙫𝙬𝙭𝙮𝙯',
        '𝟬𝟭𝟮𝟯𝟰𝟱𝟲𝟳𝟴𝟵',
    ),
    'monospace': Font(
        '𝙰𝙱𝙲𝙳𝙴𝙵𝙶𝙷𝙸𝙹𝙺𝙻𝙼𝙽𝙾𝙿𝚀𝚁𝚂𝚃𝚄𝚅𝚆𝚇𝚈𝚉',
        '𝚊𝚋𝚌𝚍𝚎𝚏𝚐𝚑𝚒𝚓𝚔𝚕𝚖𝚗𝚘𝚙𝚚𝚛𝚜𝚝𝚞𝚟𝚠𝚡𝚢𝚣',
        '𝟶𝟷𝟸𝟹𝟺𝟻𝟼𝟽𝟾𝟿',
    ),
    'double-struck': Font(
        '𝔸𝔹ℂ𝔻𝔼𝔽𝔾ℍ𝕀𝕁𝕂𝕃𝕄ℕ𝕆ℙℚℝ𝕊𝕋𝕌𝕍𝕎𝕏𝕐ℤ',
        '𝕒𝕓𝕔𝕕𝕖𝕗𝕘𝕙𝕚𝕛𝕜𝕝𝕞𝕟𝕠𝕡𝕢𝕣𝕤𝕥𝕦𝕧𝕨𝕩𝕪𝕫',
        '𝟘𝟙𝟚𝟛𝟜𝟝𝟞𝟟𝟠𝟡',
    ),
    'fraktur': Font(
        '𝔄𝔅ℭ𝔇𝔈𝔉𝔊ℌℑ𝔍𝔎𝔏𝔐𝔑𝔒𝔓𝔔ℜ𝔖𝔗𝔘𝔙𝔚𝔛𝔜ℨ',
        '𝔞𝔟𝔠𝔡𝔢𝔣𝔤𝔥𝔦𝔧𝔨𝔩𝔪𝔫𝔬𝔭𝔮𝔯𝔰𝔱𝔲𝔳𝔴𝔵𝔶𝔷',
    ),
    'fraktur-bold': Font(
        '𝕬𝕭𝕮𝕯𝕰𝕱𝕲𝕳𝕴𝕵𝕶𝕷𝕸𝕹𝕺𝕻𝕼𝕽𝕾𝕿𝖀𝖁𝖂𝖃𝖄𝖅',
        '𝖆𝖇𝖈𝖉𝖊𝖋𝖌𝖍𝖎𝖏𝖐𝖑𝖒𝖓𝖔𝖕𝖖𝖗𝖘𝖙𝖚𝖛𝖜𝖝𝖞𝖟',
    ),
    'script': Font(
        '𝒜ℬ𝒞𝒟ℰℱ𝒢ℋℐ𝒥𝒦ℒℳ𝒩𝒪𝒫𝒬ℛ𝒮𝒯𝒰𝒱𝒲𝒳𝒴𝒵',
        '𝒶𝒷𝒸𝒹ℯ𝒻ℊ𝒽𝒾𝒿𝓀𝓁𝓂𝓃ℴ𝓅𝓆𝓇𝓈𝓉𝓊𝓋𝓌𝓍𝓎𝓏'
    ),
    'script-bold': Font(
        '𝓐𝓑𝓒𝓓𝓔𝓕𝓖𝓗𝓘𝓙𝓚𝓛𝓜𝓝𝓞𝓟𝓠𝓡𝓢𝓣𝓤𝓥𝓦𝓧𝓨𝓩',
        '𝓪𝓫𝓬𝓭𝓮𝓯𝓰𝓱𝓲𝓳𝓴𝓵𝓶𝓷𝓸𝓹𝓺𝓻𝓼𝓽𝓾𝓿𝔀𝔁𝔂𝔃',
    ),
    'circled': Font(
        'ⒶⒷⒸⒹⒺⒻⒼⒽⒾⒿⓀⓁⓂⓃⓄⓅⓆⓇⓈⓉⓊⓋⓌⓍⓎⓏ',
        'ⓐⓑⓒⓓⓔⓕⓖⓗⓘⓙⓚⓛⓜⓝⓞⓟⓠⓡⓢⓣⓤⓥⓦⓧⓨⓩ',
        '🄋①②③④⑤⑥⑦⑧⑨',
    ),
    'circled-dark': Font(
        '🅐🅑🅒🅓🅔🅕🅖🅗🅘🅙🅚🅛🅜🅝🅞🅟🅠🅡🅢🅣🅤🅥🅦🅧🅨🅩',
        '🅐🅑🅒🅓🅔🅕🅖🅗🅘🅙🅚🅛🅜🅝🅞🅟🅠🅡🅢🅣🅤🅥🅦🅧🅨🅩',
    ),
    'boxed': Font(
        '🄰🄱🄲🄳🄴🄵🄶🄷🄸🄹🄺🄻🄼🄽🄾🄿🅀🅁🅂🅃🅄🅅🅆🅇🅈🅉',
        '🄰🄱🄲🄳🄴🄵🄶🄷🄸🄹🄺🄻🄼🄽🄾🄿🅀🅁🅂🅃🅄🅅🅆🅇🅈🅉',
    ),
}



def main(*argv) -> int:
    """ """
    args = argparse.ArgumentParser()
    args.add_argument(
        '--font',
        type=str,
        nargs=1,
        help=f'The target font, or "all". Available fonts: {", ".join(FONTS.keys())}'
    )
    ns = args.parse_args(argv)

    if ns.font is None:
        sys.stderr.write('No font selected! See --help.')
        return 1

    fontName = ns.font[0].lower().strip().replace(' ', '-')

    if fontName == 'all':
        text = sys.stdin.read()

        for font in FONTS.values():
            for char in text:
                sys.stdout.write(font.mapChar(char))

        return 0

    font = FONTS[fontName]

    for char in sys.stdin.read():
        sys.stdout.write(font.mapChar(char))

    return 0


if __name__ == '__main__':
    sys.exit(main(*sys.argv[1:]))


# vim: set ts=4 sw=4 tw=79 fdm=marker ff=unix fenc=utf-8 et :