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ponysay/ponysay.py
Mattias Andrée b3d9b671f0 m
2012-11-01 02:45:59 +01:00

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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
'''
ponysay - Ponysay, cowsay reimplementation for ponies
Copyright (C) 2012 Erkin Batu Altunbaş et al.
This program is free software. It comes without any warranty, to
the extent permitted by applicable law. You can redistribute it
and/or modify it under the terms of the Do What The Fuck You Want
To Public License, Version 2, as published by Sam Hocevar. See
http://sam.zoy.org/wtfpl/COPYING for more details.
Authors of ponysay.py:
Erkin Batu Altunbaş: Project leader, helped write the first implementation
Mattias "maandree" Andrée: Major contributor of both implementions
Elis "etu" Axelsson: Major contributor of current implemention and patcher of the first implementation
Sven-Hendrik "svenstaro" Haase: Major contributor of the first implementation
Jan Alexander "heftig" Steffens: Major contributor of the first implementation
Kyah "L-four" Rindlisbacher: Patched the first implementation
'''
import os
import shutil
import sys
import random
from subprocess import Popen, PIPE
'''
The version of ponysay
'''
VERSION = 'dev' # this line should not be edited, it is fixed by the build system
'''
Hack to enforce UTF-8 in output (in the future, if you see anypony not using utf-8 in
programs by default, report them to Princess Celestia so she can banish them to the moon)
@param text:str The text to print (empty string is default)
@param end:str The appendix to the text to print (line breaking is default)
'''
def print(text = '', end = '\n'):
sys.stdout.buffer.write((str(text) + end).encode('utf-8'))
'''
stderr equivalent to print()
@param text:str The text to print (empty string is default)
@param end:str The appendix to the text to print (line breaking is default)
'''
def printerr(text = '', end = '\n'):
sys.stderr.buffer.write((str(text) + end).encode('utf-8'))
fd3 = None
'''
/proc/self/fd/3 equivalent to print()
@param text:str The text to print (empty string is default)
@param end:str The appendix to the text to print (line breaking is default)
'''
def printinfo(text = '', end = '\n'):
global fd3
if os.path.exists('/proc/self/fd/3'):
if fd3 is None:
fd3 = os.fdopen(3, 'w')
fd3.write(str(text) + end)
'''
Checks whether a text ends with a specific text, but has more
@param text The text to test
@param ending The desired end of the text
@return :bool The result of the test
'''
def endswith(text, ending):
return text.endswith(ending) and not (text == ending)
'''
This is the mane class of ponysay
'''
class Ponysay():
'''
Constructor
'''
def __init__(self):
'''
The user's home directory
'''
self.HOME = os.environ['HOME'] if 'HOME' in os.environ else ''
if len(self.HOME) == 0:
os.environ['HOME'] = self.HOME = os.path.expanduser('~')
'''
Parse a file name encoded with environment variables
@param file The encoded file name
@return The target file name, None if the environment variables are not declared
'''
def parsefile(file):
if '$' in file:
buf = ''
esc = False
var = None
for c in file:
if esc:
buf += c
esc = False
elif var is not None:
if c == '/':
var = os.environ[var] if var in os.environ else ''
if len(var) == 0:
return None
buf += var + c
var = None
else:
var += c
elif c == '$':
var = ''
elif c == '\\':
esc = True
else:
buf += c
return buf
return file
## Change system enviroment variables with ponysayrc
for file in ('$XDG_CONFIG_HOME/ponysay/ponysayrc', '$HOME/.config/ponysay/ponysayrc', '$HOME/.ponysayrc', '/etc/ponysayrc'):
file = parsefile(file)
if os.path.exists(file):
with open(file, 'rb') as ponysayrc:
code = ponysayrc.read().decode('utf8', 'replace') + '\n'
env = os.environ
code = compile(code, file, 'exec')
exec(code)
break
self.HOME = os.environ['HOME'] if 'HOME' in os.environ else '' # in case ~/.ponysayrc changes it
if len(self.HOME) == 0:
os.environ['HOME'] = self.HOME = os.path.expanduser('~')
'''
Whether any unrecognised options was parsed, this should be set by the invoker before run()
'''
self.unrecognised = False
'''
Whether the program is execute in Linux VT (TTY)
'''
self.linuxvt = ('TERM' in os.environ) and (os.environ['TERM'] == 'linux')
'''
Whether the script is executed as ponythink
'''
self.isthink = (len(__file__) >= len('think')) and (__file__.endswith('think'))
self.isthink = ((len(__file__) >= len('think.py')) and (__file__.endswith('think.py'))) or self.isthink
'''
Whether stdin is piped
'''
self.pipelinein = not sys.stdin.isatty()
'''
Whether stdout is piped
'''
self.pipelineout = not sys.stdout.isatty()
'''
Whether stderr is piped
'''
self.pipelineerr = not sys.stderr.isatty()
'''
Whether KMS is used
'''
self.usekms = self.isUsingKMS()
'''
Mode string that modifies or adds $ variables in the pony image
'''
self.mode = ''
def share(file):
return [parsefile(item) + file for item in [
'$XDG_DATA_HOME/ponysay/',
'$HOME/.local/share/ponysay/',
'/usr/share/ponysay/',
]]
'''
The directories where pony files are stored, ttyponies/ are used if the terminal is Linux VT (also known as TTY) and not with KMS
'''
appendset = set()
self.xponydirs = []
_ponydirs = share('ponies/')
for ponydir in _ponydirs:
if (ponydir is not None) and os.path.isdir(ponydir) and (ponydir not in appendset):
self.xponydirs.append(ponydir)
appendset.add(ponydir)
appendset = set()
self.vtponydirs = []
_ponydirs = share('ttyponies/')
for ponydir in _ponydirs:
if (ponydir is not None) and os.path.isdir(ponydir) and (ponydir not in appendset):
self.vtponydirs.append(ponydir)
appendset.add(ponydir)
'''
The directories where pony files are stored, extrattyponies/ are used if the terminal is Linux VT (also known as TTY) and not with KMS
'''
appendset = set()
self.extraxponydirs = []
_extraponydirs = share('extraponies/')
for extraponydir in _extraponydirs:
if (extraponydir is not None) and os.path.isdir(extraponydir) and (extraponydir not in appendset):
self.extraxponydirs.append(extraponydir)
appendset.add(extraponydir)
appendset = set()
self.extravtponydirs = []
_extraponydirs = share('extrattyponies/')
for extraponydir in _extraponydirs:
if (extraponydir is not None) and os.path.isdir(extraponydir) and (extraponydir not in appendset):
self.extravtponydirs.append(extraponydir)
appendset.add(extraponydir)
'''
The directories where quotes files are stored
'''
appendset = set()
self.quotedirs = []
_quotedirs = share('quotes/')
for quotedir in _quotedirs:
if (quotedir is not None) and os.path.isdir(quotedir) and (quotedir not in appendset):
self.quotedirs.append(quotedir)
appendset.add(quotedir)
'''
The directories where balloon style files are stored
'''
appendset = set()
self.balloondirs = []
_balloondirs = share('balloons/')
for balloondir in _balloondirs:
if (balloondir is not None) and os.path.isdir(balloondir) and (balloondir not in appendset):
self.balloondirs.append(balloondir)
appendset.add(balloondir)
'''
ucsmap files
'''
appendset = set()
self.ucsmaps = []
_ucsmaps = share('ucsmap/')
for ucsmap in _ucsmaps:
if (ucsmap is not None) and os.path.isdir(ucsmap) and (ucsmap not in appendset):
self.ucsmaps.append(ucsmap)
appendset.add(ucsmap)
'''
Starts the part of the program the arguments indicate
@param args:ArgParser Parsed command line arguments
'''
def run(self, args):
if (args.argcount == 0) and not self.pipelinein:
args.help()
exit(254)
return
## Emulate termial capabilities
if args.opts['-X'] is not None: (self.linuxvt, self.usekms) = (False, False)
elif args.opts['-V'] is not None: (self.linuxvt, self.usekms) = (True, False)
elif args.opts['-K'] is not None: (self.linuxvt, self.usekms) = (True, True)
self.ponydirs = self.vtponydirs if self.linuxvt and not self.usekms else self.xponydirs
self.extraponydirs = self.extravtponydirs if self.linuxvt and not self.usekms else self.extraxponydirs
## Variadic variants of -f, +f and -q
if args.opts['--f'] is not None:
if args.opts['-f'] is not None: args.opts['-f'] += args.opts['--f']
else: args.opts['-f'] = args.opts['--f']
if args.opts['++f'] is not None:
if args.opts['+f'] is not None: args.opts['+f'] += args.opts['++f']
else: args.opts['+f'] = args.opts['++F']
if args.opts['--q'] is not None:
if args.opts['-q'] is not None: args.opts['-q'] += args.opts['--q']
else: args.opts['-q'] = args.opts['--q']
## Run modes
if args.opts['-h'] is not None: args.help()
elif args.opts['--quoters'] is not None: self.quoters()
elif args.opts['--onelist'] is not None: self.onelist()
elif args.opts['-v'] is not None: self.version()
elif args.opts['-l'] is not None: self.list()
elif args.opts['-L'] is not None: self.linklist()
elif args.opts['-B'] is not None: self.balloonlist()
elif args.opts['++onelist'] is not None: self.__extraponies(); self.onelist()
elif args.opts['+l'] is not None: self.__extraponies(); self.list()
elif args.opts['+L'] is not None: self.__extraponies(); self.linklist()
elif args.opts['-A'] is not None: self.list(); self.__extraponies(); self.list()
elif args.opts['+A'] is not None: self.linklist(); self.__extraponies(); self.linklist()
else:
## Colouring features
if args.opts['--colour-pony'] is not None:
self.mode += '\033[' + ';'.join(args.opts['--colour-pony']) + 'm'
else:
self.mode += '\033[0m'
if args.opts['+c'] is not None:
if args.opts['--colour-msg'] is None: args.opts['--colour-msg'] = args.opts['+c']
if args.opts['--colour-link'] is None: args.opts['--colour-link'] = args.opts['+c']
if args.opts['--colour-bubble'] is None: args.opts['--colour-bubble'] = args.opts['+c']
## Other extra features
self.__extraponies(args)
self.__bestpony(args)
self.__ucsremap(args)
if args.opts['-o'] is not None:
self.mode += '$/= $$\\= $'
args.message = ''
## The stuff
if args.opts['-q'] is not None:
warn = (args.opts['-f'] is not None) or (args.opts['+f'] is not None)
if (len(args.opts['-q']) == 1) and ((args.opts['-q'][0] == '-f') or (args.opts['-q'][0] == '+f')):
warn = True
if args.opts['-q'][0] == '-f':
args.opts['-q'] = args.files
if args.opts['-f'] is not None:
args.opts['-q'] += args.opts['-f']
self.quote(args)
if warn:
printerr('-q cannot be used at the same time as -f or +f.')
elif not self.unrecognised:
self.print_pony(args)
else:
args.help()
exit(255)
return
##############################################
## Methods that run before the mane methods ##
##############################################
'''
Use extra ponies
@param args:ArgParser Parsed command line arguments, may be `None`
'''
def __extraponies(self, args = None):
## If extraponies are used, change ponydir to extraponydir
if args is None:
self.ponydirs[:] = self.extraponydirs
elif args.opts['+f'] is not None:
args.opts['-f'] = args.opts['+f']
self.ponydirs[:] = self.extraponydirs
'''
Use best.pony if nothing else is set
@param args:ArgParser Parsed command line arguments
'''
def __bestpony(self, args):
## Set best.pony as the pony to display if none is selected
if (args.opts['-f'] is None) or (args.opts['-q'] is None) or (len(args.opts['-q']) == 0):
for ponydir in self.ponydirs:
if os.path.isfile(ponydir + 'best.pony') or os.path.islink(ponydir + 'best.pony'):
pony = os.path.realpath(ponydir + 'best.pony') # Canonical path
args.opts['-f' if args.opts['-q'] is None else '-q'] = [pony]
break
'''
Apply pony name remapping to args according to UCS settings
@param args:ArgParser Parsed command line arguments
'''
def __ucsremap(self, args):
## Read UCS configurations
env_ucs = os.environ['PONYSAY_UCS_ME'] if 'PONYSAY_UCS_ME' in os.environ else ''
ucs_conf = 0
if env_ucs in ('yes', 'y', '1'): ucs_conf = 1
elif env_ucs in ('harder', 'h', '2'): ucs_conf = 2
## Stop UCS is not used
if ucs_conf == 0:
return
## Read all lines in all UCS → ASCII map files
maplines = []
for ucsmap in self.ucsmaps:
if os.path.isfile(ucsmap):
with open(ucsmap, 'rb') as mapfile:
maplines += [line.replace('\n', '') for line in mapfile.read().decode('utf8', 'replace').split('\n')]
## Create UCS → ASCII mapping from read lines
map = {}
stripset = ' \t' # must be string, wtf! and way doesn't python's doc say so
for line in maplines:
if (len(line) > 0) and not (line[0] == '#'):
s = line.index('→')
ucs = line[:s] .strip(stripset)
ascii = line[s + 1:].strip(stripset)
map[ucs] = ascii
## Apply UCS → ASCII mapping to -f and -q arguments
for flag in ('-f', '-q'):
if args.opts[flag] is not None:
for i in range(0, len(args.opts[flag])):
if args.opts[flag][i] in map:
args.opts[flag][i] = map[args.opts[flag][i]]
#######################
## Auxiliary methods ##
#######################
'''
Apply UCS:ise pony names according to UCS settings
@param ponies:list<str> List of all ponies (of interrest)
@param links:map<str> Map to fill with simulated symlink ponies, may be `None`
'''
def __ucsise(self, ponies, links = None):
## Read UCS configurations
env_ucs = os.environ['PONYSAY_UCS_ME'] if 'PONYSAY_UCS_ME' in os.environ else ''
ucs_conf = 0
if env_ucs in ('yes', 'y', '1'): ucs_conf = 1
elif env_ucs in ('harder', 'h', '2'): ucs_conf = 2
## Stop UCS is not used
if ucs_conf == 0:
return
## Read all lines in all UCS → ASCII map files
maplines = []
for ucsmap in self.ucsmaps:
if os.path.isfile(ucsmap):
with open(ucsmap, 'rb') as mapfile:
maplines += [line.replace('\n', '') for line in mapfile.read().decode('utf8', 'replace').split('\n')]
## Create UCS → ASCII mapping from read lines
map = {}
stripset = ' \t' # must be string, wtf! and way doesn't python's doc say so
for line in maplines:
if not line.startswith('#'):
s = line.index('→')
ucs = line[:s] .strip(stripset)
ascii = line[s + 1:].strip(stripset)
map[ascii] = ucs
## Apply UCS → ACII mapping to ponies, by alias if weak settings
if ucs_conf == 1:
for pony in ponies:
if pony in map:
ponies.append(map[pony])
if links is not None:
links[map[pony]] = pony
else:
for j in range(0, len(ponies)):
if ponies[j] in map:
ponies[j] = map[ponies[j]]
'''
Returns one file with full path, names is filter for names, also accepts filepaths
@param names:list<str> Ponies to choose from, may be `None`
@param alt:bool For method internal use...
@return :str The file name of a pony
'''
def __getponypath(self, names = None, alt = False):
ponies = {}
## List all pony files, without the .pony ending
for ponydir in self.ponydirs:
for ponyfile in os.listdir(ponydir):
if endswith(ponyfile, ".pony"):
pony = ponyfile[:-5]
if pony not in ponies:
ponies[pony] = ponydir + ponyfile
## Support for explicit pony file names
if names is not None:
for name in names:
if os.path.exists(name):
ponies[name] = name
## If there is not select ponies, choose all of them
if (names is None) or (len(names) == 0):
names = list(ponies.keys())
## Select a random pony of the choosen onles
pony = names[random.randrange(0, len(names))]
if pony not in ponies:
if not alt:
autocorrect = SpelloCorrecter(self.ponydirs, '.pony')
(alternatives, dist) = autocorrect.correct(pony)
limit = os.environ['PONYSAY_TYPO_LIMIT'] if 'PONYSAY_TYPO_LIMIT' in os.environ else ''
limit = 5 if len(limit) == 0 else int(dist)
if (len(alternatives) > 0) and (dist <= limit):
return self.__getponypath(alternatives, True)
sys.stderr.write('I have never heard of anypony named %s\n' % (pony));
exit(1)
else:
return ponies[pony]
'''
Returns a set with all ponies that have quotes and are displayable
@return :set<str> All ponies that have quotes and are displayable
'''
def __quoters(self):
## List all unique quote files
quotes = []
quoteshash = set()
_quotes = []
for quotedir in self.quotedirs:
_quotes += [item[:item.index('.')] for item in os.listdir(quotedir)]
for quote in _quotes:
if not quote == '':
if not quote in quoteshash:
quoteshash.add(quote)
quotes.append(quote)
## Create a set of all ponyes that have quotes
ponies = set()
for ponydir in self.ponydirs:
for pony in os.listdir(ponydir):
if not pony[0] == '.':
p = pony[:-5] # remove .pony
for quote in quotes:
if ('+' + p + '+') in ('+' + quote + '+'):
if not p in ponies:
ponies.add(p)
return ponies
'''
Returns a list with all (pony, quote file) pairs
@return (pony, quote):(str, str) All ponies–quote file-pairs
'''
def __quotes(self):
## Get all ponyquote files
quotes = []
for quotedir in self.quotedirs:
quotes += [quotedir + item for item in os.listdir(quotedir)]
## Create list of all pony–quote file-pairs
rc = []
for ponydir in self.ponydirs:
for pony in os.listdir(ponydir):
if not pony[0] == '.':
p = pony[:-5] # remove .pony
for quote in quotes:
q = quote[quote.rindex('/') + 1:]
q = q[:q.rindex('.')]
if ('+' + p + '+') in ('+' + q + '+'):
rc.append((p, quote))
return rc
'''
Gets the size of the terminal in (rows, columns)
@return (rows, columns):(int, int) The number or lines and the number of columns in the terminal's display area
'''
def __gettermsize(self):
## Call `stty` to determine the size of the terminal, this way is better then using python's ncurses
for channel in (sys.stderr, sys.stdout, sys.stdin):
termsize = Popen(['stty', 'size'], stdout=PIPE, stdin=channel, stderr=PIPE).communicate()[0]
if len(termsize) > 0:
termsize = termsize.decode('utf8', 'replace')[:-1].split(' ') # [:-1] removes a \n
termsize = [int(item) for item in termsize]
return termsize
return (24, 80) # fall back to minimal sane size
#####################
## Listing methods ##
#####################
'''
Columnise a list and prints it
@param ponies:list<(str, str)> All items to list, each item should have to elements: unformated name, formated name
'''
def __columnise(self, ponies):
## Get terminal width, and a 2 which is the space between columns
termwidth = self.__gettermsize()[1] + 2
## Sort the ponies, and get the cells' widths, and the largest width + 2
ponies.sort(key = lambda pony : pony[0])
widths = [UCS.dispLen(pony[0]) for pony in ponies]
width = max(widths) + 2 # longest pony file name + space between columns
## Calculate the number of rows and columns, can create a list of empty columns
cols = termwidth // width # do not believe electricians, this means ⌊termwidth / width⌋
rows = (len(ponies) + cols - 1) // cols
columns = []
for c in range(0, cols): columns.append([])
## Fill the columns with cells of ponies
(y, x) = (0, 0)
for j in range(0, len(ponies)):
cell = ponies[j][1] + ' ' * (width - widths[j]);
columns[x].append(cell)
y += 1
if y == rows:
x += 1
y = 0
## Make the columnisation nicer by letting the last row be partially empty rather than the last column
diff = rows * cols - len(ponies)
if diff > 2:
c = cols - 1
diff -= 1
while diff > 0:
columns[c] = columns[c - 1][-diff:] + columns[c]
c -= 1
columns[c] = columns[c][:-diff]
diff -= 1
## Create rows from columns
lines = []
for r in range(0, rows):
lines.append([])
for c in range(0, cols):
if r < len(columns[c]):
line = lines[r].append(columns[c][r])
## Print the matrix, with one extra blank row
print('\n'.join([''.join(line)[:-2] for line in lines]))
print()
'''
Lists the available ponies
'''
def list(self):
## Get all quoters
quoters = self.__quoters()
for ponydir in self.ponydirs: # Loop ponydirs
## Get all ponies in the directory
_ponies = os.listdir(ponydir)
## Remove .pony from all files and skip those that does not have .pony
ponies = []
for pony in _ponies:
if endswith(pony, '.pony'):
ponies.append(pony[:-5])
## UCS:ise pony names, they are already sorted
self.__ucsise(ponies)
## If ther directory is not empty print its name and all ponies, columnised
if len(ponies) == 0:
continue
print('\033[1mponies located in ' + ponydir + '\033[21m')
self.__columnise([(pony, '\033[1m' + pony + '\033[21m' if pony in quoters else pony) for pony in ponies])
'''
Lists the available ponies with alternatives inside brackets
'''
def linklist(self):
## Get the size of the terminal and all ponies with quotes
termsize = self.__gettermsize()
quoters = self.__quoters()
for ponydir in self.ponydirs: # Loop ponydirs
## Get all pony files in the directory
_ponies = os.listdir(ponydir)
## Remove .pony from all files and skip those that does not have .pony
ponies = []
for pony in _ponies:
if endswith(pony, '.pony'):
ponies.append(pony[:-5])
## If there are no ponies in the directory skip to next directory, otherwise, print the directories name
if len(ponies) == 0:
continue
print('\033[1mponies located in ' + ponydir + '\033[21m')
## UCS:ise pony names
pseudolinkmap = {}
self.__ucsise(ponies, pseudolinkmap)
## Create target–link-pair, with `None` as link if the file is not a symlink or in `pseudolinkmap`
pairs = []
for pony in ponies:
if pony in pseudolinkmap:
pairs.append((pony, pseudolinkmap[pony] + '.pony'));
else:
pairs.append((pony, os.path.realpath(ponydir + pony + '.pony') if os.path.islink(ponydir + pony + '.pony') else None))
## Create map from source pony to alias ponies for each pony
ponymap = {}
for pair in pairs:
if (pair[1] is None) or (pair[1] == ''):
if pair[0] not in ponymap:
ponymap[pair[0]] = []
else:
target = pair[1][:-5]
if '/' in target:
target = target[target.rindex('/') + 1:]
if target in ponymap:
ponymap[target].append(pair[0])
else:
ponymap[target] = [pair[0]]
## Create list of source ponies concatenated with alias ponies in brackets
ponies = {}
for pony in ponymap:
w = UCS.dispLen(pony)
item = '\033[1m' + pony + '\033[21m' if (pony in quoters) else pony
syms = ponymap[pony]
syms.sort()
if len(syms) > 0:
w += 2 + len(syms)
item += ' ('
first = True
for sym in syms:
w += UCS.dispLen(sym)
if first: first = False
else: item += ' '
item += '\033[1m' + sym + '\033[21m' if (sym in quoters) else sym
item += ')'
ponies[(item.replace('\033[1m', '').replace('\033[21m', ''), item)] = w
## Print the ponies, columnised
self.__columnise(list(ponies))
'''
Lists with all ponies that have quotes and are displayable, on one column without anything bold or otherwise formated
'''
def quoters(self):
## Get all quoters
ponies = self.__quoters()
## UCS:ise and sort
self.__ucsise(ponies)
ponies = list(ponies)
ponies.sort()
## Print each one on a seperate line, but skip duplicates
last = ''
for pony in ponies:
if not pony == last:
last = pony
print(pony)
'''
Lists the available ponies on one column without anything bold or otherwise formated
'''
def onelist(self):
## Get all pony files
_ponies = []
for ponydir in self.ponydirs: # Loop ponydirs
_ponies += os.listdir(ponydir)
## Remove .pony from all files and skip those that does not have .pony
ponies = []
for pony in _ponies:
if endswith(pony, '.pony'):
ponies.append(pony[:-5])
## UCS:ise and sort
self.__ucsise(ponies)
ponies.sort()
## Print each one on a seperate line, but skip duplicates
last = ''
for pony in ponies:
if not pony == last:
last = pony
print(pony)
#####################
## Balloon methods ##
#####################
'''
Prints a list of all balloons
'''
def balloonlist(self):
## Get the size of the terminal
termsize = self.__gettermsize()
## Get all balloons
balloonset = set()
for balloondir in self.balloondirs:
for balloon in os.listdir(balloondir):
## Use .think if running ponythink, otherwise .say
if self.isthink and endswith(balloon, '.think'):
balloon = balloon[:-6]
elif (not self.isthink) and endswith(balloon, '.say'):
balloon = balloon[:-4]
else:
continue
## Add the balloon if there is none with the same name
if balloon not in balloonset:
balloonset.add(balloon)
## Print all balloos, columnised
self.__columnise([(balloon, balloon) for balloon in list(balloonset)])
'''
Returns one file with full path, names is filter for style names, also accepts filepaths
@param names:list<str> Balloons to choose from, may be `None`
@param alt:bool For method internal use
@param :str The file name of the balloon, will be `None` iff `names` is `None`
'''
def __getballoonpath(self, names, alt = False):
## Stop if their is no choosen balloon
if names is None:
return None
## Get all balloons
balloons = {}
for balloondir in self.balloondirs:
for balloon in os.listdir(balloondir):
balloonfile = balloon
## Use .think if running ponythink, otherwise .say
if self.isthink and endswith(balloon, '.think'):
balloon = balloon[:-6]
elif (not self.isthink) and endswith(balloon, '.say'):
balloon = balloon[:-4]
else:
continue
## Add the balloon if there is none with the same name
if balloon not in balloons:
balloons[balloon] = balloondir + balloonfile
## Support for explicit balloon file names
for name in names:
if os.path.exists(name):
balloons[name] = name
## Select a random balloon of the choosen ones
balloon = names[random.randrange(0, len(names))]
if balloon not in balloons:
if not alt:
autocorrect = SpelloCorrecter(self.balloondirs, '.think' if self.isthink else '.say')
(alternatives, dist) = autocorrect.correct(balloon)
limit = os.environ['PONYSAY_TYPO_LIMIT'] if 'PONYSAY_TYPO_LIMIT' in os.environ else ''
limit = 5 if len(limit) == 0 else int(dist)
if (len(alternatives) > 0) and (dist <= limit):
return self.__getballoonpath(alternatives, True)
sys.stderr.write('That balloon style %s does not exist\n' % (balloon));
exit(1)
else:
return balloons[balloon]
'''
Creates the balloon style object
@param balloonfile:str The file with the balloon style, may be `None`
@return :Balloon Instance describing the balloon's style
'''
def __getballoon(self, balloonfile):
## Use default balloon if none is specified
if balloonfile is None:
if self.isthink:
return Balloon('o', 'o', '( ', ' )', [' _'], ['_'], ['_'], ['_'], ['_ '], ' )', ' )', ' )', ['- '], ['-'], ['-'], ['-'], [' -'], '( ', '( ', '( ')
return Balloon('\\', '/', '< ', ' >', [' _'], ['_'], ['_'], ['_'], ['_ '], ' \\', ' |', ' /', ['- '], ['-'], ['-'], ['-'], [' -'], '\\ ', '| ', '/ ')
## Initialise map for balloon parts
map = {}
for elem in ('\\', '/', 'ww', 'ee', 'nw', 'nnw', 'n', 'nne', 'ne', 'nee', 'e', 'see', 'se', 'sse', 's', 'ssw', 'sw', 'sww', 'w', 'nww'):
map[elem] = []
## Read all lines in the balloon file
with open(balloonfile, 'rb') as balloonstream:
data = balloonstream.read().decode('utf8', 'replace')
data = [line.replace('\n', '') for line in data.split('\n')]
## Parse the balloon file, and fill the map
last = None
for line in data:
if len(line) > 0:
if line[0] == ':':
map[last].append(line[1:])
else:
last = line[:line.index(':')]
value = line[len(last) + 1:]
map[last].append(value)
## Return the balloon
return Balloon(map['\\'][0], map['/'][0], map['ww'][0], map['ee'][0], map['nw'], map['nnw'], map['n'],
map['nne'], map['ne'], map['nee'][0], map['e'][0], map['see'][0], map['se'], map['sse'],
map['s'], map['ssw'], map['sw'], map['sww'][0], map['w'][0], map['nww'][0])
########################
## Displaying methods ##
########################
'''
Prints the name of the program and the version of the program
'''
def version(self):
## Prints the "ponysay $VERSION", if this is modified, ./dev/dist.sh must be modified accordingly
print('%s %s' % ('ponysay', VERSION))
'''
Print the pony with a speech or though bubble. message, pony and wrap from args are used.
@param args:ArgParser Parsed command line arguments
'''
def print_pony(self, args):
## Get message and remove tailing whitespace from stdin (but not for each line)
if args.message == None:
msg = ''.join(sys.stdin.readlines()).rstrip()
else:
msg = args.message
if args.opts['--colour-msg'] is not None:
msg = '\033[' + ';'.join(args.opts['--colour-msg']) + 'm' + msg
## This algorithm should give some result as cowsay's (according to tests)
if args.opts['-c'] is not None:
buf = ''
last = ' '
CHARS = '\t \n'
for c in msg:
if (c in CHARS) and (last in CHARS):
if last == '\n':
buf += last
last = c
else:
buf += c
last = c
msg = buf.strip(CHARS)
buf = ''
for c in msg:
if (c != '\n') or (last != '\n'):
buf += c
last = c
msg = buf.replace('\n', '\n\n')
## Get the pony
pony = self.__getponypath(args.opts['-f'])
printinfo('pony file: ' + pony)
## Use PNG file as pony file
if endswith(pony.lower(), '.png'):
pony = '\'' + pony.replace('\'', '\'\\\'\'') + '\''
pngcmd = ('img2ponysay -p -- ' if self.linuxvt else 'img2ponysay -- ') + pony
pngpipe = os.pipe()
Popen(pngcmd, stdout=os.fdopen(pngpipe[1], 'w'), shell=True).wait()
pony = '/proc/' + str(os.getpid()) + '/fd/' + str(pngpipe[0])
## If KMS is utilies, select a KMS pony file and create it if necessary
pony = self.__kms(pony)
## If in Linux VT clean the terminal (See info/pdf-manual [Printing in TTY with KMS])
if self.linuxvt:
print('\033[H\033[2J', end='')
## Get width truncation and wrapping
env_width = os.environ['PONYSAY_FULL_WIDTH'] if 'PONYSAY_FULL_WIDTH' in os.environ else None
if env_width is None: env_width = ''
widthtruncation = self.__gettermsize()[1] if env_width not in ('yes', 'y', '1') else None
messagewrap = 40
if (args.opts['-W'] is not None) and (len(args.opts['-W'][0]) > 0):
messagewrap = args.opts['-W'][0]
if messagewrap[0] in 'nmsNMS': # m is left to n on QWERTY and s is left to n on Dvorak
messagewrap = None
elif messagewrap[0] in 'iouIOU': # o is left to i on QWERTY and u is right to i on Dvorak
messagewrap = self.__gettermsize()[1]
else:
messagewrap = int(args.opts['-W'][0])
## Get balloon object
balloonfile = self.__getballoonpath(args.opts['-b'])
printinfo('balloon style file: ' + str(balloonfile))
balloon = self.__getballoon(balloonfile) if args.opts['-o'] is None else None
## Get hyphen style
hyphen = os.environ['PONYSAY_WRAP_HYPHEN'] if 'PONYSAY_WRAP_HYPHEN' in os.environ else None
if (hyphen is None) or (len(hyphen) == 0):
hyphen = '-'
hyphencolour = ''
if args.opts['--colour-wrap'] is not None:
hyphencolour = '\033[' + ';'.join(args.opts['--colour-wrap']) + 'm'
hyphen = '\033[31m' + hyphencolour + hyphen
## Link and balloon colouring
linkcolour = ''
if args.opts['--colour-link'] is not None:
linkcolour = '\033[' + ';'.join(args.opts['--colour-link']) + 'm'
ballooncolour = ''
if args.opts['--colour-bubble'] is not None:
ballooncolour = '\033[' + ';'.join(args.opts['--colour-bubble']) + 'm'
## Run cowsay replacement
backend = Backend(message = msg, ponyfile = pony, wrapcolumn = messagewrap, width = widthtruncation, balloon = balloon,
hyphen = hyphen, linkcolour = linkcolour, ballooncolour = ballooncolour, mode = self.mode)
backend.parse()
output = backend.output
if output.endswith('\n'):
output = output[:-1]
## Load height trunction settings
env_bottom = os.environ['PONYSAY_BOTTOM'] if 'PONYSAY_BOTTOM' in os.environ else None
if env_bottom is None: env_bottom = ''
env_height = os.environ['PONYSAY_TRUNCATE_HEIGHT'] if 'PONYSAY_TRUNCATE_HEIGHT' in os.environ else None
if env_height is None: env_height = ''
env_lines = os.environ['PONYSAY_SHELL_LINES'] if 'PONYSAY_SHELL_LINES' in os.environ else None
if (env_lines is None) or (env_lines == ''): env_lines = '2'
## Print the output, truncated on height is so set
lines = self.__gettermsize()[0] - int(env_lines)
if self.linuxvt or (env_height is ('yes', 'y', '1')):
if env_bottom is ('yes', 'y', '1'):
for line in output.split('\n')[: -lines]:
print(line)
else:
for line in output.split('\n')[: lines]:
print(line)
else:
print(output)
'''
Print the pony with a speech or though bubble and a self quote
@param args:ArgParser Parsed command line arguments
'''
def quote(self, args):
## Get all quotes, and if any pony is choosen just keep them
pairs = self.__quotes()
if len(args.opts['-q']) > 0:
ponyset = {}
for pony in args.opts['-q']:
if endswith(pony, '.pony'):
ponyname = pony[:-5]
if '/' in ponyname:
ponyname = ponyname[ponyname.rindex('/') + 1:]
ponyset[ponyname] = pony
else:
ponyset[pony] = pony
alts = []
for pair in pairs:
if pair[0] in ponyset:
alts.append((ponyset[pair[0]], pair[1]))
pairs = alts
## Select a random pony–quote-pair, load it and print it
if not len(pairs) == 0:
pair = pairs[random.randrange(0, len(pairs))]
printinfo('quote file: ' + pair[1])
with open(pair[1], 'rb') as qfile:
args.message = qfile.read().decode('utf8', 'replace').strip()
args.opts['-f'] = [pair[0]]
elif len(args.opts['-q']) == 0:
sys.stderr.write('Princess Celestia! All the ponies are mute!\n')
exit(1)
else:
args.opts['-f'] = [args.opts['-q'][random.randrange(0, len(args.opts['-q']))]]
args.message = 'Zecora! Help me, I am mute!'
self.print_pony(args)
'''
Identifies whether KMS support is utilised
'''
def isUsingKMS(self):
## KMS is not utilised if Linux VT is not used
if not self.linuxvt:
return False
## Read the PONYSAY_KMS_PALETTE environment variable
env_kms = os.environ['PONYSAY_KMS_PALETTE'] if 'PONYSAY_KMS_PALETTE' in os.environ else None
if env_kms is None: env_kms = ''
## Read the PONYSAY_KMS_PALETTE_CMD environment variable, and run it
env_kms_cmd = os.environ['PONYSAY_KMS_PALETTE_CMD'] if 'PONYSAY_KMS_PALETTE_CMD' in os.environ else None
if (env_kms_cmd is not None) and (not env_kms_cmd == ''):
env_kms = Popen(shlex.split(env_kms_cmd), stdout=PIPE, stdin=sys.stderr).communicate()[0].decode('utf8', 'replace')
if env_kms[-1] == '\n':
env_kms = env_kms[:-1]
## If the palette string is empty KMS is not utilised
return env_kms != ''
'''
Returns the file name of the input pony converted to a KMS pony, or if KMS is not used, the input pony itself
@param pony:str Choosen pony file
@return :str Pony file to display
'''
def __kms(self, pony):
## If not in Linux VT, return the pony as is
if not self.linuxvt:
return pony
## KMS support version constant
KMS_VERSION = '1'
## Read the PONYSAY_KMS_PALETTE environment variable
env_kms = os.environ['PONYSAY_KMS_PALETTE'] if 'PONYSAY_KMS_PALETTE' in os.environ else None
if env_kms is None: env_kms = ''
## Read the PONYSAY_KMS_PALETTE_CMD environment variable, and run it
env_kms_cmd = os.environ['PONYSAY_KMS_PALETTE_CMD'] if 'PONYSAY_KMS_PALETTE_CMD' in os.environ else None
if (env_kms_cmd is not None) and (not env_kms_cmd == ''):
env_kms = Popen(shlex.split(env_kms_cmd), stdout=PIPE, stdin=sys.stderr).communicate()[0].decode('utf8', 'replace')
if env_kms[-1] == '\n':
env_kms = env_kms[:-1]
## If not using KMS, return the pony as is
if env_kms == '':
return pony
## Store palette string and a clong with just the essentials
palette = env_kms
palettefile = env_kms.replace('\033]P', '')
## Get and in necessary make cache directory
cachedir = '/var/cache/ponysay'
shared = True
if not os.path.isdir(cachedir):
cachedir = self.HOME + '/.cache/ponysay'
shared = False
if not os.path.isdir(cachedir):
os.makedirs(cachedir)
_cachedir = '\'' + cachedir.replace('\'', '\'\\\'\'') + '\''
## KMS support version control, clean everything if not matching
newversion = False
if not os.path.isfile(cachedir + '/.version'):
newversion = True
else:
with open(cachedir + '/.version', 'rb') as cachev:
if cachev.read().decode('utf8', 'replace').replace('\n', '') != KMS_VERSION:
newversion = True
if newversion:
for cached in os.listdir(cachedir):
cached = cachedir + '/' + cached
if os.path.isdir(cached) and not os.path.islink(cached):
shutil.rmtree(cached, False)
else:
os.remove(cached)
with open(cachedir + '/.version', 'w+') as cachev:
cachev.write(KMS_VERSION)
if shared:
Popen('chmod 666 -- ' + _cachedir + '/.version', shell=True).wait()
## Get kmspony directory and kmspony file
kmsponies = cachedir + '/kmsponies/' + palettefile
kmspony = (kmsponies + pony).replace('//', '/')
## If the kmspony is missing, create it
if not os.path.isfile(kmspony):
## Protokmsponies are uncolourful ttyponies
protokmsponies = cachedir + '/protokmsponies/'
protokmspony = (protokmsponies + pony).replace('//', '/')
protokmsponydir = protokmspony[:protokmspony.rindex('/')]
kmsponydir = kmspony[: kmspony.rindex('/')]
## Change file names to be shell friendly
_protokmspony = '\'' + protokmspony.replace('\'', '\'\\\'\'') + '\''
_kmspony = '\'' + kmspony.replace('\'', '\'\\\'\'') + '\''
_pony = '\'' + pony.replace('\'', '\'\\\'\'') + '\''
## Create protokmspony is missing
if not os.path.isfile(protokmspony):
if not os.path.isdir(protokmsponydir):
os.makedirs(protokmsponydir)
if shared:
Popen('chmod -R 6777 -- ' + _cachedir, shell=True).wait()
if not os.system('ponysay2ttyponysay < ' + _pony + ' > ' + _protokmspony) == 0:
sys.stderr.write('Unable to run ponysay2ttyponysay successfully, you need util-say for KMS support\n')
exit(1)
if shared:
Popen('chmod 666 -- ' + _protokmspony, shell=True).wait()
## Create kmspony
if not os.path.isdir(kmsponydir):
os.makedirs(kmsponydir)
if shared:
Popen('chmod -R 6777 -- ' + _cachedir, shell=True).wait()
if not os.system('tty2colourfultty -p ' + palette + ' < ' + _protokmspony + ' > ' + _kmspony) == 0:
sys.stderr.write('Unable to run tty2colourfultty successfully, you need util-say for KMS support\n')
exit(1)
if shared:
Popen('chmod 666 -- ' + _kmspony, shell=True).wait()
return kmspony
'''
Option takes no arguments
'''
ARGUMENTLESS = 0
'''
Option takes one argument per instance
'''
ARGUMENTED = 1
'''
Option consumes all following arguments
'''
VARIADIC = 2
'''
Simple argument parser
'''
class ArgParser():
'''
Constructor.
The short description is printed on same line as the program name
@param program:str The name of the program
@param description:str Short, single-line, description of the program
@param usage:str Formated, multi-line, usage text
@param longdescription:str Long, multi-line, description of the program, may be `None`
'''
def __init__(self, program, description, usage, longdescription = None):
self.linuxvt = ('TERM' in os.environ) and (os.environ['TERM'] == 'linux')
self.__program = program
self.__description = description
self.__usage = usage
self.__longdescription = longdescription
self.__arguments = []
self.opts = {}
self.optmap = {}
'''
Add option that takes no arguments
@param alternatives:list<str> Option names
@param help:str Short description, use `None` to hide the option
'''
def add_argumentless(self, alternatives, help = None):
ARGUMENTLESS
self.__arguments.append((ARGUMENTLESS, alternatives, None, help))
stdalt = alternatives[0]
self.opts[stdalt] = None
for alt in alternatives:
self.optmap[alt] = (stdalt, ARGUMENTLESS)
'''
Add option that takes one argument
@param alternatives:list<str> Option names
@param arg:str The name of the takes argument, one word
@param help:str Short description, use `None` to hide the option
'''
def add_argumented(self, alternatives, arg, help = None):
self.__arguments.append((ARGUMENTED, alternatives, arg, help))
stdalt = alternatives[0]
self.opts[stdalt] = None
for alt in alternatives:
self.optmap[alt] = (stdalt, ARGUMENTED)
'''
Add option that takes all following argument
@param alternatives:list<str> Option names
@param arg:str The name of the takes arguments, one word
@param help:str Short description, use `None` to hide the option
'''
def add_variadic(self, alternatives, arg, help = None):
self.__arguments.append((VARIADIC, alternatives, arg, help))
stdalt = alternatives[0]
self.opts[stdalt] = None
for alt in alternatives:
self.optmap[alt] = (stdalt, VARIADIC)
'''
Parse arguments
@param args:list<str> The command line arguments, should include the execute file at index 0, `sys.argv` is default
@return :bool Whether no unrecognised option is used
'''
def parse(self, argv = sys.argv):
self.argcount = len(argv) - 1
self.files = []
argqueue = []
optqueue = []
deque = []
for arg in argv[1:]:
deque.append(arg)
dashed = False
tmpdashed = False
get = 0
dontget = 0
self.rc = True
def unrecognised(arg):
sys.stderr.write('%s: warning: unrecognised option %s\n' % (self.__program, arg))
self.rc = False
while len(deque) != 0:
arg = deque[0]
deque = deque[1:]
if (get > 0) and (dontget == 0):
get -= 1
argqueue.append(arg)
elif tmpdashed:
self.files.append(arg)
tmpdashed = False
elif dashed: self.files.append(arg)
elif arg == '++': tmpdashed = True
elif arg == '--': dashed = True
elif (len(arg) > 1) and (arg[0] in ('-', '+')):
if (len(arg) > 2) and (arg[:2] in ('--', '++')):
if dontget > 0:
dontget -= 1
elif (arg in self.optmap) and (self.optmap[arg][1] == ARGUMENTLESS):
optqueue.append(arg)
argqueue.append(None)
elif '=' in arg:
arg_opt = arg[:arg.index('=')]
if (arg_opt in self.optmap) and (self.optmap[arg_opt][1] >= ARGUMENTED):
optqueue.append(arg_opt)
argqueue.append(arg[arg.index('=') + 1:])
if self.optmap[arg_opt][1] == VARIADIC:
dashed = True
else:
unrecognised(arg)
elif (arg in self.optmap) and (self.optmap[arg][1] == ARGUMENTED):
optqueue.append(arg)
get += 1
elif (arg in self.optmap) and (self.optmap[arg][1] == VARIADIC):
optqueue.append(arg)
argqueue.append(None)
dashed = True
else:
unrecognised(arg)
else:
sign = arg[0]
i = 1
n = len(arg)
while i < n:
narg = sign + arg[i]
i += 1
if (narg in self.optmap):
if self.optmap[narg][1] == ARGUMENTLESS:
optqueue.append(narg)
argqueue.append(None)
elif self.optmap[narg][1] == ARGUMENTED:
optqueue.append(narg)
nargarg = arg[i:]
if len(nargarg) == 0:
get += 1
else:
argqueue.append(nargarg)
break
elif self.optmap[narg][1] == VARIADIC:
optqueue.append(narg)
nargarg = arg[i:]
argqueue.append(nargarg if len(nargarg) > 0 else None)
dashed = True
break
else:
unrecognised(arg)
else:
self.files.append(arg)
i = 0
n = len(optqueue)
while i < n:
opt = optqueue[i]
arg = argqueue[i] if len(argqueue) > i else None
i += 1
opt = self.optmap[opt][0]
if (opt not in self.opts) or (self.opts[opt] is None):
self.opts[opt] = []
if len(argqueue) >= i:
self.opts[opt].append(arg)
for arg in self.__arguments:
if arg[0] == VARIADIC:
varopt = self.opts[arg[1][0]]
if varopt is not None:
additional = ','.join(self.files).split(',') if len(self.files) > 0 else []
if varopt[0] is None:
self.opts[arg[1][0]] = additional
else:
self.opts[arg[1][0]] = varopt[0].split(',') + additional
self.files = []
break
self.message = ' '.join(self.files) if len(self.files) > 0 else None
return self.rc
'''
Prints a colourful help message
'''
def help(self):
print('\033[1m%s\033[21m %s %s' % (self.__program, '-' if self.linuxvt else '—', self.__description))
print()
if self.__longdescription is not None:
print(self.__longdescription)
print()
print('\033[1mUSAGE:\033[21m', end='')
first = True
for line in self.__usage.split('\n'):
if first:
first = False
else:
print(' or', end='')
print('\t%s' % (line))
print()
maxfirstlen = []
for opt in self.__arguments:
opt_alts = opt[1]
opt_help = opt[3]
if opt_help is None:
continue
first = opt_alts[0]
last = opt_alts[-1]
if first is not last:
maxfirstlen.append(first)
maxfirstlen = len(max(maxfirstlen, key = len))
print('\033[1mSYNOPSIS:\033[21m')
(lines, lens) = ([], [])
for opt in self.__arguments:
opt_type = opt[0]
opt_alts = opt[1]
opt_arg = opt[2]
opt_help = opt[3]
if opt_help is None:
continue
(line, l) = ('', 0)
first = opt_alts[0]
last = opt_alts[-1]
alts = ['', last] if first is last else [first, last]
alts[0] += ' ' * (maxfirstlen - len(alts[0]))
for opt_alt in alts:
if opt_alt is alts[-1]:
line += '%colour%' + opt_alt
l += len(opt_alt)
if opt_type == ARGUMENTED: line += ' \033[4m%s\033[24m' % (opt_arg); l += len(opt_arg) + 1
elif opt_type == VARIADIC: line += ' [\033[4m%s\033[24m...]' % (opt_arg); l += len(opt_arg) + 6
else:
line += ' \033[2m%s\033[22m ' % (opt_alt)
l += len(opt_alt) + 6
lines.append(line)
lens.append(l)
col = max(lens)
col += 8 - ((col - 4) & 7)
index = 0
for opt in self.__arguments:
opt_help = opt[3]
if opt_help is None:
continue
first = True
colour = '36' if (index & 1) == 0 else '34'
print(lines[index].replace('%colour%', '\033[%s;1m' % (colour)), end=' ' * (col - lens[index]))
for line in opt_help.split('\n'):
if first:
first = False
print('%s' % (line), end='\033[21;39m\n')
else:
print('%s\033[%sm%s\033[39m' % (' ' * col, colour, line))
index += 1
print()
'''
Balloon format class
'''
class Balloon():
'''
Constructor
@param link:str The \-directional balloon line character
@param linkmirror:str The /-directional balloon line character
@param ww:str See the info manual
@param ee:str See the info manual
@param nw:list<str> See the info manual
@param nnw:list<str> See the info manual
@param n:list<str> See the info manual
@param nne:list<str> See the info manual
@param ne:list<str> See the info manual
@param nee:str See the info manual
@param e:str See the info manual
@param see:str See the info manual
@param se:list<str> See the info manual
@param sse:list<str> See the info manual
@param s:list<str> See the info manual
@param ssw:list<str> See the info manual
@param sw:list<str> See the info manual
@param sww:str See the info manual
@param w:str See the info manual
@param nww:str See the info manual
'''
def __init__(self, link, linkmirror, ww, ee, nw, nnw, n, nne, ne, nee, e, see, se, sse, s, ssw, sw, sww, w, nww):
(self.link, self.linkmirror) = (link, linkmirror)
(self.ww, self.ee) = (ww, ee)
(self.nw, self.ne, self.se, self.sw) = (nw, ne, se, sw)
(self.nnw, self.n, self.nne) = (nnw, n, nne)
(self.nee, self.e, self.see) = (nee, e, see)
(self.sse, self.s, self.ssw) = (sse, s, ssw)
(self.sww, self.w, self.nww) = (sww, w, nww)
_ne = max(ne, key = UCS.dispLen)
_nw = max(nw, key = UCS.dispLen)
_se = max(se, key = UCS.dispLen)
_sw = max(sw, key = UCS.dispLen)
minE = UCS.dispLen(max([_ne, nee, e, see, _se, ee], key = UCS.dispLen))
minW = UCS.dispLen(max([_nw, nww, e, sww, _sw, ww], key = UCS.dispLen))
minN = len(max([ne, nne, n, nnw, nw], key = len))
minS = len(max([se, sse, s, ssw, sw], key = len))
self.minwidth = minE + minE
self.minheight = minN + minS
'''
Generates a balloon with a message
@param minw:int The minimum number of columns of the balloon
@param minh:int The minimum number of lines of the balloon
@param lines:list<str> The text lines to display
@param lencalc:int(str) Function used to compute the length of a text line
@return :str The balloon as a formated string
'''
def get(self, minw, minh, lines, lencalc):
h = self.minheight + len(lines)
w = self.minwidth + lencalc(max(lines, key = lencalc))
if w < minw: w = minw
if h < minh: h = minh
if len(lines) > 1:
(ws, es) = ({0 : self.nww, len(lines) - 1 : self.sww}, {0 : self.nee, len(lines) - 1 : self.see})
for j in range(1, len(lines) - 1):
ws[j] = self.w
es[j] = self.e
else:
(ws, es) = ({0 : self.ww}, {0 : self.ee})
rc = []
for j in range(0, len(self.n)):
outer = UCS.dispLen(self.nw[j]) + UCS.dispLen(self.ne[j])
inner = UCS.dispLen(self.nnw[j]) + UCS.dispLen(self.nne[j])
if outer + inner <= w:
rc.append(self.nw[j] + self.nnw[j] + self.n[j] * (w - outer - inner) + self.nne[j] + self.ne[j])
else:
rc.append(self.nw[j] + self.n[j] * (w - outer) + self.ne[j])
for j in range(0, len(lines)):
rc.append(ws[j] + lines[j] + ' ' * (w - lencalc(lines[j]) - UCS.dispLen(self.w) - UCS.dispLen(self.e)) + es[j])
for j in range(0, len(self.s)):
outer = UCS.dispLen(self.sw[j]) + UCS.dispLen(self.se[j])
inner = UCS.dispLen(self.ssw[j]) + UCS.dispLen(self.sse[j])
if outer + inner <= w:
rc.append(self.sw[j] + self.ssw[j] + self.s[j] * (w - outer - inner) + self.sse[j] + self.se[j])
else:
rc.append(self.sw[j] + self.s[j] * (w - outer) + self.se[j])
return '\n'.join(rc)
'''
Super-ultra-extreme-awesomazing replacement for cowsay
'''
class Backend():
'''
Constructor
@param message:str The message spoken by the pony
@param ponyfile:str The pony file
@param wrapcolumn:int The column at where to wrap the message, `None` for no wrapping
@param width:int The width of the screen, `None` if truncation should not be applied
@param balloon:Balloon The balloon style object, `None` if only the pony should be printed
@param hyphen:str How hyphens added by the wordwrapper should be printed
@param linkcolour:str How to colour the link character, empty string if none
@param ballooncolour:str How to colour the balloon, empty string if none
@param mode:str Mode string for the pony
'''
def __init__(self, message, ponyfile, wrapcolumn, width, balloon, hyphen, linkcolour, ballooncolour, mode):
self.message = message
self.ponyfile = ponyfile
self.wrapcolumn = None if wrapcolumn is None else wrapcolumn - (0 if balloon is None else balloon.minwidth)
self.width = width
self.balloon = balloon
self.hyphen = hyphen
self.ballooncolour = ballooncolour
self.mode = mode
self.balloontop = 0
self.balloonbottom = 0
if self.balloon is not None:
self.link = {'\\' : linkcolour + self.balloon.link,
'/' : linkcolour + self.balloon.linkmirror}
else:
self.link = {}
self.output = ''
self.pony = None
'''
Process all data
'''
def parse(self):
self.__expandMessage()
self.__unpadMessage()
self.__loadFile()
if self.pony.startswith('$$$\n'):
self.pony = self.pony[4:]
infoend = self.pony.index('\n$$$\n')
info = self.pony[:infoend].split('\n')
for line in info:
sep = line.find(':')
if sep > 0:
key = line[:sep].strip()
if key == 'BALLOON TOP':
value = line[sep + 1:].strip()
if len(value) > 0:
self.balloontop = int(value)
if key == 'BALLOON BOTTOM':
value = line[sep + 1:].strip()
if len(value) > 0:
self.balloonbottom = int(value)
printinfo(info)
self.pony = self.pony[infoend + 5:]
self.pony = self.mode + self.pony
self.__processPony()
self.__truncate()
'''
Remove padding spaces fortune cookies are padded with whitespace (damn featherbrains)
'''
def __unpadMessage(self):
lines = self.message.split('\n')
for spaces in (8, 4, 2, 1):
padded = True
for line in lines:
if not line.startswith(' ' * spaces):
padded = False
break
if padded:
for i in range(0, len(lines)):
line = lines[i]
while line.startswith(' ' * spaces):
line = line[spaces:]
lines[i] = line
lines = [line.rstrip(' ') for line in lines]
self.message = '\n'.join(lines)
'''
Converts all tabs in the message to spaces by expanding
'''
def __expandMessage(self):
lines = self.message.split('\n')
buf = ''
for line in lines:
(i, n, x) = (0, len(line), 0)
while i < n:
c = line[i]
i += 1
if c == '\033':
colour = Backend.getcolour(line, i - 1)
i += len(colour) - 1
buf += colour
elif c == '\t':
nx = 8 - (x & 7)
buf += ' ' * nx
x += nx
else:
buf += c
if not UCS.isCombining(c):
x += 1
buf += '\n'
self.message = buf[:-1]
'''
Loads the pony file
'''
def __loadFile(self):
with open(self.ponyfile, 'rb') as ponystream:
self.pony = ponystream.read().decode('utf8', 'replace')
'''
Truncate output to the width of the screen
'''
def __truncate(self):
if self.width is None:
return
lines = self.output.split('\n')
self.output = ''
for line in lines:
(i, n, x) = (0, len(line), 0)
while i < n:
c = line[i]
i += 1
if c == '\033':
colour = Backend.getcolour(line, i - 1)
i += len(colour) - 1
self.output += colour
else:
if x < self.width:
self.output += c
if not UCS.isCombining(c):
x += 1
self.output += '\n'
self.output = self.output[:-1]
'''
Process the pony file and generate output to self.output
'''
def __processPony(self):
self.output = ''
AUTO_PUSH = '\033[01010~'
AUTO_POP = '\033[10101~'
variables = {'' : '$'}
for key in self.link:
variables[key] = AUTO_PUSH + self.link[key] + AUTO_POP
indent = 0
dollar = None
balloonLines = None
colourstack = ColourStack(AUTO_PUSH, AUTO_POP)
(i, n, lineindex, skip, nonskip) = (0, len(self.pony), 0, 0, 0)
while i < n:
c = self.pony[i]
if c == '\t':
n += 7 - (indent & 7)
ed = ' ' * (8 - (indent & 7))
c = ' '
self.pony = self.pony[:i] + ed + self.pony[i + 1:]
i += 1
if c == '$':
if dollar is not None:
if '=' in dollar:
name = dollar[:dollar.find('=')]
value = dollar[dollar.find('=') + 1:]
variables[name] = value
elif not dollar.startswith('balloon'):
data = variables[dollar].replace('$', '$$')
if data == '$$': # if not handled specially we will get an infinity loop
if (skip == 0) or (nonskip > 0):
if nonskip > 0:
nonskip -= 1
self.output += '$'
indent += 1
else:
skip -= 1
else:
n += len(data)
self.pony = self.pony[:i] + data + self.pony[i:]
elif self.balloon is not None:
(w, h, x, justify) = ('0', 0, 0, None)
props = dollar[7:]
if len(props) > 0:
if ',' in props:
if props[0] is not ',':
w = props[:props.index(',')]
h = int(props[props.index(',') + 1:])
else:
w = props
if 'l' in w:
(x, w) = (int(w[:w.find('l')]), int(w[w.find('l') + 1:]))
justify = 'l'
w -= x;
elif 'c' in w:
(x, w) = (int(w[:w.find('c')]), int(w[w.find('c') + 1:]))
justify = 'c'
w -= x;
elif 'r' in w:
(x, w) = (int(w[:w.find('r')]), int(w[w.find('r') + 1:]))
justify = 'r'
w -= x;
else:
w = int(w)
balloon = self.__getballoon(w, h, x, justify, indent)
balloon = balloon.split('\n')
balloon = [AUTO_PUSH + self.ballooncolour + item + AUTO_POP for item in balloon]
for b in balloon[0]:
self.output += b + colourstack.feed(b)
if lineindex == 0:
balloonpre = '\n' + (' ' * indent)
for line in balloon[1:]:
self.output += balloonpre;
for b in line:
self.output += b + colourstack.feed(b);
indent = 0
elif len(balloon) > 1:
balloonLines = balloon
balloonLine = 0
balloonIndent = indent
indent += Backend.len(balloonLines[0])
balloonLines[0] = None
dollar = None
else:
dollar = ''
elif dollar is not None:
if c == '\033':
c = self.pony[i]
i += 1
dollar += c
elif c == '\033':
colour = Backend.getcolour(self.pony, i - 1)
for b in colour:
self.output += b + colourstack.feed(b);
i += len(colour) - 1
elif c == '\n':
self.output += c
indent = 0
(skip, nonskip) = (0, 0)
lineindex += 1
if balloonLines is not None:
balloonLine += 1
if balloonLine == len(balloonLines):
balloonLines = None
else:
if (balloonLines is not None) and (balloonLines[balloonLine] is not None) and (balloonIndent == indent):
data = balloonLines[balloonLine]
datalen = Backend.len(data)
skip += datalen
nonskip += datalen
data = data.replace('$', '$$')
n += len(data)
self.pony = self.pony[:i] + data + self.pony[i:]
balloonLines[balloonLine] = None
else:
if (skip == 0) or (nonskip > 0):
if nonskip > 0:
nonskip -= 1
self.output += c + colourstack.feed(c);
if not UCS.isCombining(c):
indent += 1
else:
skip -= 1
if balloonLines is not None:
for line in balloonLines[balloonLine:]:
data = ' ' * (balloonIndent - indent) + line + '\n'
for b in data:
self.output += b + colourstack.feed(b);
indent = 0
self.output = self.output.replace(AUTO_PUSH, '').replace(AUTO_POP, '')
if self.balloon is not None:
if (self.balloontop > 0) or (self.balloonbottom > 0):
self.output = self.output.split('\n')
self.output = self.output[self.balloontop : ~(self.balloonbottom)]
self.output = '\n'.join(self.output)
'''
Gets colour code att the currect offset in a buffer
@param input:str The input buffer
@param offset:int The offset at where to start reading, a escape must begin here
@return :str The escape sequence
'''
@staticmethod
def getcolour(input, offset):
(i, n) = (offset, len(input))
rc = input[i]
i += 1
if i == n: return rc
c = input[i]
i += 1
rc += c
if c == ']':
if i == n: return rc
c = input[i]
i += 1
rc += c
if c == 'P':
di = 0
while (di < 7) and (i < n):
c = input[i]
i += 1
di += 1
rc += c
elif c == '[':
while i < n:
c = input[i]
i += 1
rc += c
if (c == '~') or (('a' <= c) and (c <= 'z')) or (('A' <= c) and (c <= 'Z')):
break
return rc
'''
Calculates the number of visible characters in a text
@param input:str The input buffer
@return :int The number of visible characters
'''
@staticmethod
def len(input):
(rc, i, n) = (0, 0, len(input))
while i < n:
c = input[i]
if c == '\033':
i += len(Backend.getcolour(input, i))
else:
i += 1
if not UCS.isCombining(c):
rc += 1
return rc
'''
Generates a balloon with the message
@param width:int The minimum width of the balloon
@param height:int The minimum height of the balloon
@param innerleft:int The left column of the required span, excluding that of `left`
@param justify:str Balloon placement justification, 'c' → centered,
'l' → left (expand to right), 'r' → right (expand to left)
@param left:int The column where the balloon starts
@return :str The balloon the the message as a string
'''
def __getballoon(self, width, height, innerleft, justify, left):
wrap = None
if self.wrapcolumn is not None:
wrap = self.wrapcolumn - left
if wrap < 8:
wrap = 8
msg = self.message
if wrap is not None:
msg = self.__wrapMessage(msg, wrap)
msg = msg.replace('\n', '\033[0m%s\n' % (self.ballooncolour)) + '\033[0m' + self.ballooncolour
msg = msg.split('\n')
extraleft = 0
if justify is not None:
msgwidth = self.len(max(msg, key = self.len)) + self.balloon.minwidth
extraleft = innerleft
if msgwidth > width:
if (justify == 'l') and (wrap is not None):
if innerleft + msgwidth > wrap:
extraleft -= msgwidth - wrap
elif justify == 'r':
extraleft -= msgwidth - width
elif justify == 'c':
extraleft -= (msgwidth - width) >> 1
if extraleft < 0:
extraleft = 0
if extraleft + msgwidth > wrap:
extraleft -= msgwidth - wrap
rc = self.balloon.get(width, height, msg, Backend.len);
if extraleft > 0:
rc = ' ' * extraleft + rc.replace('\n', '\n' + ' ' * extraleft)
return rc
'''
Wraps the message
@param message:str The message to wrap
@param wrap:int The width at where to force wrapping
@return :str The message wrapped
'''
def __wrapMessage(self, message, wrap):
wraplimit = os.environ['PONYSAY_WRAP_LIMIT'] if 'PONYSAY_WRAP_LIMIT' in os.environ else ''
wraplimit = 8 if len(wraplimit) == 0 else int(wraplimit)
wrapexceed = os.environ['PONYSAY_WRAP_EXCEED'] if 'PONYSAY_WRAP_EXCEED' in os.environ else ''
wrapexceed = 5 if len(wrapexceed) == 0 else int(wrapexceed)
buf = ''
try:
AUTO_PUSH = '\033[01010~'
AUTO_POP = '\033[10101~'
msg = message.replace('\n', AUTO_PUSH + '\n' + AUTO_POP);
cstack = ColourStack(AUTO_PUSH, AUTO_POP)
for c in msg:
buf += c + cstack.feed(c)
lines = buf.replace(AUTO_PUSH, '').replace(AUTO_POP, '').split('\n')
buf = ''
for line in lines:
b = [None] * len(line)
map = {0 : 0}
(bi, cols, w) = (0, 0, wrap)
(indent, indentc) = (-1, 0)
(i, n) = (0, len(line))
while i <= n:
d = None
if i < n:
d = line[i]
i += 1
if d == '\033': # TODO this should use Backend.getcolour()
## Invisible stuff
b[bi] = d
bi += 1
b[bi] = line[i]
d = line[i]
bi += 1
i += 1
if d == '[':
while True:
b[bi] = line[i]
d = line[i]
bi += 1
i += 1
if (('a' <= d) and (d <= 'z')) or (('A' <= d) and (d <= 'Z')) or (d == '~'):
break
elif d == ']':
b[bi] = line[i]
d = line[i]
bi += 1
i += 1
if d == 'P':
for j in range(0, 7):
b[bi] = line[i]
bi += 1
i += 1
elif (d is not None) and (d != ' '):
## Fetch word
if indent == -1:
indent = i - 1
for j in range(0, indent):
if line[j] == ' ':
indentc += 1
b[bi] = d
bi += 1
if (not UCS.isCombining(d)) and (d != '­'):
cols += 1
map[cols] = bi
else:
## Wrap?
mm = 0
bisub = 0
iwrap = wrap - (0 if indent == 1 else indentc)
while ((w > wraplimit) and (cols > w + wrapexceed)) or (cols > iwrap):
## wrap
x = w;
if mm + x not in map: # Too much whitespace?
cols = 0
break
nbsp = b[map[mm + x]] == ' '
m = map[mm + x]
if ('­' in b[bisub : m]) and not nbsp:
hyphen = m - 1
while b[hyphen] != '­':
hyphen -= 1
while map[mm + x] > hyphen: ## Only looking backward, if foreward is required the word is probabily not hyphenated correctly
x -= 1
x += 1
m = map[mm + x]
mm += x - (0 if nbsp else 1) ## − 1 so we have space for a hythen
for bb in b[bisub : m]:
buf += bb
buf += '\n' if nbsp else '\0\n'
cols -= x - (0 if nbsp else 1)
bisub = m
w = iwrap
if indent != -1:
buf += line[:indent]
for j in range(bisub, bi):
b[j - bisub] = b[j]
bi -= bisub
if cols > w:
buf += '\n'
w = wrap
if indent != -1:
buf += line[:indent]
w -= indentc
for bb in b[:bi]:
if bb is not None:
buf += bb
w -= cols
cols = 0
bi = 0
if d is None:
i += 1
else:
if w > 0:
buf += ' '
w -= 1
else:
buf += '\n'
w = wrap
if indent != -1:
buf + line[:indent]
w -= indentc
buf += '\n'
rc = '\n'.join(line.rstrip() for line in buf[:-1].split('\n'));
rc = rc.replace('­', ''); # remove soft hyphens
rc = rc.replace('\0', '%s%s%s' % (AUTO_PUSH, self.hyphen, AUTO_POP))
return rc
except Exception as err:
import traceback
errormessage = ''.join(traceback.format_exception(type(err), err, None))
rc = '\n'.join(line.rstrip() for line in buf.split('\n'));
rc = rc.replace('\0', '%s%s%s' % (AUTO_PUSH, self.hyphen, AUTO_POP))
errormessage += '\n---- WRAPPING BUFFER ----\n\n' + rc
try:
if os.readlink('/proc/self/fd/2') != os.readlink('/proc/self/fd/1'):
printerr(errormessage, end='')
return message
except:
pass
return message + '\n\n\033[0;1;31m---- EXCEPTION IN PONYSAY WHILE WRAPPING ----\033[0m\n\n' + errormessage
'''
ANSI colour stack
This is used to make layers with independent coloursations
'''
class ColourStack():
'''
Constructor
@param autopush:str String that, when used, will create a new independently colourised layer
@param autopop:str String that, when used, will end the current layer and continue of the previous layer
'''
def __init__(self, autopush, autopop):
self.autopush = autopush
self.autopop = autopop
self.lenpush = len(autopush)
self.lenpop = len(autopop)
self.bufproto = ' ' * (self.lenpush if self.lenpush > self.lenpop else self.lenpop)
self.stack = []
self.push()
self.seq = None
'''
Create a new independently colourised layer
@return :str String that should be inserted into your buffer
'''
def push(self):
self.stack.insert(0, [self.bufproto, None, None, [False] * 9])
if len(self.stack) == 1:
return None
return '\033[0m'
'''
End the current layer and continue of the previous layer
@return :str String that should be inserted into your buffer
'''
def pop(self):
old = self.stack.pop(0)
rc = '\033[0;'
if len(self.stack) == 0: # last resort in case something made it pop too mush
push()
new = self.stack[0]
if new[1] is not None: rc += new[1] + ';'
if new[2] is not None: rc += new[2] + ';'
for i in range(0, 9):
if new[3][i]:
rc += str(i + 1) + ';'
return rc[:-1] + 'm'
'''
Use this, in sequence, for which character in your buffer that contains yor autopush and autopop
string, the automatically get push and pop string to insert after each character
@param :chr One character in your buffer
@return :str The text to insert after the input character
'''
def feed(self, char):
if self.seq is not None:
self.seq += char
if (char == '~') or (('a' <= char) and (char <= 'z')) or (('A' <= char) and (char <= 'Z')):
if (self.seq[0] == '[') and (self.seq[-1] == 'm'):
self.seq = self.seq[1:-1].split(';')
(i, n) = (0, len(self.seq))
while i < n:
part = self.seq[i]
p = 0 if part == '' else int(part)
i += 1
if p == 0: self.stack[0][1:] = [None, None, [False] * 9]
elif (1 <= p) and (p <= 9): self.stack[0][3][p - 1] = True
elif (21 <= p) and (p <= 29): self.stack[0][3][p - 21] = False
elif p == 39: self.stack[0][1] = None
elif p == 49: self.stack[0][2] = None
elif (30 <= p) and (p <= 37): self.stack[0][1] = part
elif (90 <= p) and (p <= 97): self.stack[0][1] = part
elif (40 <= p) and (p <= 47): self.stack[0][2] = part
elif (100 <= p) and (p <= 107): self.stack[0][2] = part
elif p == 38:
self.stack[0][1] = '%s;%s;%s' % (part, self.seq[i], self.seq[i + 1])
i += 2
elif p == 48:
self.stack[0][2] = '%s;%s;%s' % (part, self.seq[i], self.seq[i + 1])
i += 2
self.seq = None
elif char == '\033':
self.seq = ''
buf = self.stack[0][0]
buf = buf[1:] + char
rc = ''
if buf[-self.lenpush:] == self.autopush: rc = self.push()
elif buf[-self.lenpop:] == self.autopop: rc = self.pop()
self.stack[0][0] = buf
return rc
'''
UCS utility class
'''
class UCS():
'''
Checks whether a character is a combining character
@param char:chr The character to test
@return :bool Whether the character is a combining character
'''
@staticmethod
def isCombining(char):
o = ord(char)
if (0x0300 <= o) and (o <= 0x036F): return True
if (0x20D0 <= o) and (o <= 0x20FF): return True
if (0x1DC0 <= o) and (o <= 0x1DFF): return True
if (0xFE20 <= o) and (o <= 0xFE2F): return True
return False
'''
Gets the number of combining characters in a string
@param string:str A text to count combining characters in
@return :int The number of combining characters in the string
'''
@staticmethod
def countCombining(string):
rc = 0
for char in string:
if UCS.isCombining(char):
rc += 1
return rc
'''
Gets length of a string not counting combining characters
@param string:str The text of which to determine the monospaced width
@return The determine the monospaced width of the text, provided it does not have escape sequnces
'''
@staticmethod
def dispLen(string):
return len(string) - UCS.countCombining(string)
'''
Class used for correcting spellos and typos,
Note that this implementation will not find that correctly spelled word are correct faster than it corrects words.
It is also limited to words of size 0 to 127 (inclusive)
'''
class SpelloCorrecter(): # Naïvely and quickly proted and adapted from optimised Java, may not be the nicest, or even fast, Python code
'''
Constructor
@param directories:list<str> List of directories that contains the file names with the correct spelling
@param ending:str The file name ending of the correctly spelled file names, this is removed for the name
'''
def __init__(self, directories, ending):
self.weights = {'k' : {'c' : 0.25, 'g' : 0.75, 'q' : 0.125},
'c' : {'k' : 0.25, 'g' : 0.75, 's' : 0.5, 'z' : 0.5, 'q' : 0.125},
's' : {'z' : 0.25, 'c' : 0.5},
'z' : {'s' : 0.25, 'c' : 0.5},
'g' : {'k' : 0.75, 'c' : 0.75, 'q' : 0.9},
'o' : {'u' : 0.5},
'u' : {'o' : 0.5, 'v' : 0.75, 'w' : 0.5},
'b' : {'v' : 0.75},
'v' : {'b' : 0.75, 'w' : 0.5, 'u' : 0.7},
'w' : {'v' : 0.5, 'u' : 0.5},
'q' : {'c' : 0.125, 'k' : 0.125, 'g' : 0.9}}
self.corrections = None
self.dictionary = [None] * 513
self.reusable = [0] * 512
self.dictionaryEnd = 512
self.closestDistance = 0
self.M = [None] * 128
for y in range(0, 128):
self.M[y] = [0] * 128
self.M[y][0] = y
m0 = self.M[0]
x = 127
while x > -1:
m0[x] = x
x -= 1
previous = ''
self.dictionary[-1] = previous;
for directory in directories:
for filename in os.listdir(directory):
if (not endswith(filename, ending)) or (len(filename) - len(ending) > 127):
continue
proper = filename[:-len(ending)]
if self.dictionaryEnd == 0:
self.dictionaryEnd = len(self.dictionary)
self.reusable = [0] * self.dictionaryEnd + self.reusable
self.dictionary = [None] * self.dictionaryEnd + self.dictionary
self.dictionaryEnd -= 1
self.dictionary[self.dictionaryEnd] = proper
prevCommon = min(len(previous), len(proper))
for i in range(0, prevCommon):
if previous[i] != proper[i]:
prevCommon = i
break
previous = proper
self.reusable[self.dictionaryEnd] = prevCommon
#part = self.dictionary[self.dictionaryEnd : len(self.dictionary) - 1]
#part.sort()
#self.dictionary[self.dictionaryEnd : len(self.dictionary) - 1] = part
#
#index = len(self.dictionary) - 1
#while index >= self.dictionaryEnd:
# proper = self.dictionary[index]
# prevCommon = min(len(previous), len(proper))
# for i in range(0, prevCommon):
# if previous[i] != proper[i]:
# prevCommon = i
# break
# previous = proper
# self.reusable[self.dictionaryEnd] = prevCommon
# index -= 1;
'''
Finds the closests correct spelled word
@param used:str The word to correct
@return (words, distance):(list<string>, int) A list the closest spellings and the weighted distance
'''
def correct(self, used):
if len(used) > 127:
return ([used], 0)
self.__correct(used)
return (self.corrections, self.closestDistance)
'''
Finds the closests correct spelled word
@param used:str The word to correct, it must satisfy all restrictions
'''
def __correct(self, used):
self.closestDistance = 0x7FFFFFFF
previous = self.dictionary[-1]
prevLen = 0
usedLen = len(used)
proper = None
prevCommon = 0
d = len(self.dictionary) - 1
while d > self.dictionaryEnd:
d -= 1
proper = self.dictionary[d]
if abs(len(proper) - usedLen) <= self.closestDistance:
if previous == self.dictionary[d + 1]:
prevCommon = self.reusable[d];
else:
prevCommon = min(prevLen, len(proper))
for i in range(0, prevCommon):
if previous[i] != proper[i]:
prevCommon = i
break
skip = min(prevLen, len(proper))
i = prevCommon
while i < skip:
for u in range(0, usedLen):
if (used[u] == previous[i]) or (used[u] == proper[i]):
skip = i
break
i += 1
common = min(skip, min(usedLen, len(proper)))
for i in range(0, common):
if used[i] != proper[i]:
common = i
break
distance = self.__distance(proper, skip, len(proper), used, common, usedLen)
if self.closestDistance > distance:
self.closestDistance = distance
self.corrections = [proper]
elif self.closestDistance == distance:
self.corrections.append(proper)
previous = proper;
if distance >= 0x7FFFFF00:
prevLen = distance & 255
else:
prevLen = len(proper)
'''
Calculate the distance between a correct word and a incorrect word
@param proper:str The correct word
@param y0:int The offset for `proper`
@param yn:int The length, before applying `y0`, of `proper`
@param used:str The incorrect word
@param x0:int The offset for `used`
@param xn:int The length, before applying `x0`, of `used`
@return :float The distance between the words
'''
def __distance(self, proper, y0, yn, used, x0, xn):
my = self.M[y0]
for y in range(y0, yn):
best = 0x7FFFFFFF
p = proper[y]
myy = self.M[y + 1] # only one array bound check, and at most one + ☺
x = x0
while x < xn:
change = my[x]
u = used[x]
if p == u:
# commence black magick … twilight would be so disappointed
x += 1
myy[x] = change
best = min(best, change)
remove = myy[x]
add = my[x + 1]
cw = 1
if my[x] in self.weights:
if p in self.weights[u]:
cw = self.weights[u][p]
x += 1
myy[x] = min(cw + change, 1 + min(remove, add))
if best > myy[x]:
best = myy[x]
if best > self.closestDistance:
return 0x7FFFFF00 | y
my = myy
return my[xn]
'''
Start the program from ponysay.__init__ if this is the executed file
'''
if __name__ == '__main__':
isthink = (len(__file__) >= len('think')) and (__file__.endswith('think'))
isthink = ((len(__file__) >= len('think.py')) and (__file__.endswith('think.py'))) or isthink
usage_saythink = '\033[34;1m(ponysay | ponythink)\033[21;39m'
usage_common = '[-c] [-W\033[33mCOLUMN\033[39m] [-b\033[33mSTYLE\033[39m]'
usage_listhelp = '(-l | -L | -B | +l | +L | -A | + A | -v | -h)'
usage_file = '[-f\033[33mPONY\033[39m]* [[--] \033[33mmessage\033[39m]'
usage_xfile = '(+f\033[33mPONY\033[39m)* [[--] \033[33mmessage\033[39m]'
usage_quote = '(-q\033[33mPONY\033[39m)*'
usage = '%s %s\n%s %s %s\n%s %s %s\n%s %s %s' % (usage_saythink, usage_listhelp,
usage_saythink, usage_common, usage_file,
usage_saythink, usage_common, usage_xfile,
usage_saythink, usage_common, usage_quote)
usage = usage.replace('\033[', '\0')
for sym in ('[', ']', '(', ')', '|', '...', '*'):
usage = usage.replace(sym, '\033[2m' + sym + '\033[22m')
usage = usage.replace('\0', '\033[')
'''
Argument parsing
'''
opts = ArgParser(program = 'ponythink' if isthink else 'ponysay',
description = 'cowsay reimplemention for ponies',
usage = usage,
longdescription =
'''Ponysay displays an image of a pony saying some text provided by the user.
If \033[4mmessage\033[24m is not provided, it accepts standard input. For an extensive
documentation run `info ponysay`, or for just a little more help than this
run `man ponysay`. Ponysay has so much more to offer than described here.''')
opts.add_argumentless(['--quoters'])
opts.add_argumentless(['--onelist'])
opts.add_argumentless(['++onelist'])
opts.add_argumentless(['-X', '--256-colours', '--256colours', '--x-colours'])
opts.add_argumentless(['-V', '--tty-colours', '--ttycolours', '--vt-colours'])
opts.add_argumentless(['-K', '--kms-colours', '--kmscolours'])
opts.add_argumented(['+c', '--colour'], arg = 'COLOUR')
opts.add_argumented(['--colour-bubble', '--colour-balloon'], arg = 'COLOUR')
opts.add_argumented(['--colour-link'], arg = 'COLOUR')
opts.add_argumented(['--colour-msg', '--colour-message'], arg = 'COLOUR')
opts.add_argumented(['--colour-pony'], arg = 'COLOUR')
opts.add_argumented(['--colour-wrap', '--colour-hyphen'], arg = 'COLOUR')
opts.add_argumentless(['-h', '--help'], help = 'Print this help message.')
opts.add_argumentless(['-v', '--version'], help = 'Print the version of the program.')
opts.add_argumentless(['-l', '--list'], help = 'List pony names.')
opts.add_argumentless(['-L', '--symlist', '--altlist'], help = 'List pony names with alternatives.')
opts.add_argumentless(['+l', '++list'], help = 'List non-MLP:FiM pony names.')
opts.add_argumentless(['+L', '++symlist', '++altlist'], help = 'List non-MLP:FiM pony names with alternatives.')
opts.add_argumentless(['-A', '--all'], help = 'List all pony names.')
opts.add_argumentless(['+A', '++all', '--symall', '--altall'], help = 'List all pony names with alternatives.')
opts.add_argumentless(['-B', '--bubblelist', '--balloonlist'], help = 'List balloon styles.')
opts.add_argumentless(['-c', '--compress', '--compact'], help = 'Compress messages.')
opts.add_argumentless(['-o', '--pony-only', '--ponyonly'], help = 'Print only the pony.')
opts.add_argumented( ['-W', '--wrap'], arg = 'COLUMN', help = 'Specify column where the message should be wrapped.')
opts.add_argumented( ['-b', '--bubble', '--balloon'], arg = 'STYLE', help = 'Select a balloon style.')
opts.add_argumented( ['-f', '--file', '--pony'], arg = 'PONY', help = 'Select a pony.\nEither a file name or a pony name.')
opts.add_argumented( ['+f', '++file', '++pony'], arg = 'PONY', help = 'Select a non-MLP:FiM pony.')
opts.add_argumented( ['-q', '--quote'], arg = 'PONY', help = 'Select a pony which will quote herself.')
opts.add_variadic( ['--f', '--files', '--ponies'], arg = 'PONY')
opts.add_variadic( ['++f', '++files', '++ponies'], arg = 'PONY')
opts.add_variadic( ['--q', '--quotes'], arg = 'PONY')
'''
Whether at least one unrecognised option was used
'''
unrecognised = not opts.parse()
## Start
ponysay = Ponysay()
ponysay.unrecognised = unrecognised
ponysay.run(opts)
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