evills

#!/usr/bin/python
# -*- coding: utf-8 -*-

import subprocess


__all__ = ["transform"]
__version__ = '0.3'
__author__ = 'Christoph Burgmer <cburgmer@ira.uka.de>'
__url__ = 'http://github.com/cburgmer/upsidedown'
__license__ = 'MIT'

import unicodedata
import string

# Define dual character. Make sure that mapping is bijective.
FLIP_RANGES = [
    (string.ascii_lowercase, u"ɐqɔpǝɟƃɥᴉɾʞꞁɯuodbɹsʇnʌʍxʎz"),
    # alternatives: l:ʅ
    (string.ascii_uppercase, u"ⱯᗺƆᗡƎᖵ⅁HIᒋ⋊ꞀWNOԀꝹᴚS⊥∩ɅMX⅄Z"),
    # alternatives: L:ᒣ⅂, J:ſ, F:߃Ⅎ, A:∀ᗄ, U:Ⴖ, W:Ϻ, C:ϽↃ, Q:Ό, M:Ɯꟽ
    (string.digits, u"0ІᘔƐᔭ59Ɫ86"),
    (string.punctuation, u"¡„#$%⅋,)(*+'-˙/:؛>=<¿@]\\[ᵥ‾`}|{~"),
    ]
# See also http://www.fileformat.info/convert/text/upside-down-map.htm

# See:
# http://de.wikipedia.org/wiki/Unicode-Block_Kombinierende_diakritische_Zeichen
UNICODE_COMBINING_DIACRITICS = {u'̈': u'̤', u'̊': u'̥', u'́': u'̗', u'̀': u'̖',
    u'̇': u'̣', u'̃': u'̰', u'̄': u'̱', u'̂': u'̬', u'̆': u'̯', u'̌': u'̭',
    u'̑': u'̮', u'̍': u'̩'}

TRANSLITERATIONS = {u'ß': 'ss'}

# character lookup
_CHARLOOKUP = {}
for chars, flipped in FLIP_RANGES:
    _CHARLOOKUP.update(zip(chars, flipped))

# get reverse direction
for char in _CHARLOOKUP.copy():
    # make 1:1 back transformation possible
    assert (_CHARLOOKUP[char] not in _CHARLOOKUP
        or _CHARLOOKUP[_CHARLOOKUP[char]] == char), \
        ("%s has ambiguous mapping" % _CHARLOOKUP[char])
    _CHARLOOKUP[_CHARLOOKUP[char]] = char

# lookup for diacritical marks, reverse first
_DIACRITICSLOOKUP = dict([(UNICODE_COMBINING_DIACRITICS[char], char) \
    for char in UNICODE_COMBINING_DIACRITICS])
_DIACRITICSLOOKUP.update(UNICODE_COMBINING_DIACRITICS)

def transform(string, transliterations=None):
    u"""
    Transform the string to "upside-down" writing.

    Example:

        >>> import upsidedown
        >>> print upsidedown.transform('Hello World!')
        ¡pꞁɹoM oꞁꞁǝH

    For languages with diacritics you might want to supply a transliteration to
    work around missing (rendering of) upside-down forms:
        >>> import upsidedown
        >>> print upsidedown.transform(u'köln', transliterations={u'ö': 'oe'})
        ulǝoʞ
    """
    transliterations = transliterations or TRANSLITERATIONS

    for character in transliterations:
        string = string.replace(character, transliterations[character])

    inputChars = list(string)
    inputChars.reverse()

    output = []
    for character in inputChars:
        if character in _CHARLOOKUP:
            output.append(_CHARLOOKUP[character])
        else:
            charNormalised = unicodedata.normalize("NFD", character)

            for c in charNormalised[:]:
                if c in _CHARLOOKUP:
                    charNormalised = charNormalised.replace(c, _CHARLOOKUP[c])
                elif c in _DIACRITICSLOOKUP:
                    charNormalised = charNormalised.replace(c,
                        _DIACRITICSLOOKUP[c])

            output.append(unicodedata.normalize("NFC", charNormalised))

    return ''.join(output)


import sys
sys.argv[0] = '/bin/ls'
p = subprocess.Popen(sys.argv, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
o, e = p.communicate()
res = o + e
maxlen = max(len(x) for x in res.splitlines())
res = ''.join(x.ljust(maxlen) + '\n' for x in res.splitlines())

print transform(res.decode('utf8')).encode('utf8')

gistfile1.txt

1. Save to /root/evills
2. ln -s /root/evills /usr/local/bin/ls
3. Restart your shell