ponysay/ponysay-tool.py
2012-10-30 19:14:21 +01:00

546 lines
21 KiB
Python
Executable file

#!/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.
'''
import os
import sys
from subprocess import Popen, PIPE
from ponysay import *
'''
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'))
'''
This is the mane class of ponysay-tool
'''
class PonysayTool():
'''
Starts the part of the program the arguments indicate
@param args:ArgParser Parsed command line arguments
'''
def __init__(self, args):
if args.argcount == 0:
args.help()
exit(255)
return
opts = args.opts
if unrecognised or (opts['-h'] is not None):
args.help()
if unrecognised:
exit(254)
elif opts['-v'] is not None:
print('%s %s' % ('ponysay', VERSION))
elif (opts['--edit'] is not None) and (len(opts['--edit']) == 1):
pony = opts['--edit'][0]
if not os.path.isfile(pony):
printerr('%s is not an existing regular file' % pony)
exit(252)
linuxvt = ('TERM' in os.environ) and (os.environ['TERM'] == 'linux')
try:
print('\033[?1049h', end='') # initialise terminal
if linuxvt: print('\033[?8c', end='') # use full block for cursor (_ is used by default in linux vt)
cmd = 'stty %s < %s > /dev/null 2> /dev/null'
cmd %= ('-echo -icanon -isig -ixoff -ixon', os.path.realpath('/dev/stdout'))
Popen(cmd, shell=True, stdout=PIPE, stderr=PIPE).wait()
self.editmeta(pony)
finally:
cmd = 'stty %s < %s > /dev/null 2> /dev/null'
cmd %= ('echo icanon isig ixoff ixon', os.path.realpath('/dev/stdout'))
Popen(cmd, shell=True, stdout=PIPE, stderr=PIPE).wait()
if linuxvt: print('\033[?0c', end='') # restore cursor
print('\033[?1049l', end='') # terminate terminal
else:
exit(253)
'''
Edit a pony file's meta data
@param ponyfile:str A pony file to edit
'''
def editmeta(self, ponyfile):
(data, meta, image) = 3 * [None]
with open(ponyfile, 'rb') as file:
data = file.read().decode('utf8', 'replace')
data = [line.replace('\n', '') for line in data.split('\n')]
if data[0] != '$$$':
image = data
meta = []
else:
sep = 1
while data[sep] != '$$$':
sep += 1
meta = data[1:][:sep]
image = data[sep + 1:]
class PhonyArgParser:
def __init__(self):
self.argcount = 3
self.message = ponyfile
self.opts = self
def __getitem__(self, key):
return [ponyfile] if key == '-f' else None
data = {}
comment = []
for line in data:
if ': ' in line:
key = line.replace('\t', ' ')
key = key[:key.find(': ')]
key = key.strip(' ')
if key == key.upper():
value = line.replace('\t', ' ')
value = keyvalue[key.find(': ') + 2:]
if key not in data:
data[key] = value.strip(' ')
else:
data[key] += '\n' + value.strip(' ')
else:
comment.append(line)
cut = 0
while (len(comment) > cut) and (len(comment[cut]) == 0):
cut += 1
comment = comment[cut:]
stdout = sys.stdout
class StringInputStream:
def __init__(self):
self.buf = ''
class Buffer:
def __init__(self, parent):
self.parent = parent
def write(self, data):
self.parent.buf += data.decode('utf8', 'replace')
def flush(self):
pass
self.buffer = Buffer(self)
def flush(self):
pass
def isatty(self):
return True
sys.stdout = StringInputStream()
ponysay = Ponysay()
ponysay.run(PhonyArgParser())
printpony = sys.stdout.buf[:-1].split('\n')
sys.stdout = stdout
preprint = '\033[H\033[2J'
if printpony[0].startswith(preprint):
printpony[0] = printpony[0][len(preprint):]
ponyheight = len(printpony)
ponywidth = Backend.len(max(printpony, key = Backend.len))
## Call `stty` to determine the size of the terminal, this way is better then using python's ncurses
termsize = None
for channel in (sys.stdout, sys.stdin, sys.stderr):
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]
break
AUTO_PUSH = '\033[01010~'
AUTO_POP = '\033[10101~'
modprintpony = '\n'.join(printpony).replace('\n', AUTO_PUSH + '\n' + AUTO_POP)
colourstack = ColourStack(AUTO_PUSH, AUTO_POP)
buf = ''
for c in modprintpony:
buf += c + colourstack.feed(c)
modprintpony = buf.replace(AUTO_PUSH, '').replace(AUTO_POP, '')
printpony = [('\033[21;39;49;0m%s%s\033[21;39;49;0m' % (' ' * (termsize[1] - ponywidth), line)) for line in modprintpony.split('\n')]
print(preprint, end='')
print('\n'.join(printpony), end='')
print('\033[H', end='')
print('Please see the info manual for details on how to fill out this form')
print()
if 'WIDTH' in data: del data['WIDTH']
if 'HEIGHT' in data: del data['HEIGHT']
data['comment'] = '\n'.join(comment)
fields = [key for key in data]
fields.sort()
standardfields = ['GROUP NAME', 'NAME', 'OTHER NAMES', 'APPEARANCE', 'KIND', 'GROUP',
'BALLOON', 'LINK', 'LINK ON', 'COAT', 'MANE', 'EYE', 'AURA', 'DISPLAY',
'MASTER', 'SOURCE', 'MEDIA', 'FREE', 'comment']
for standard in standardfields:
if standard in fields:
del fields[fields.index(standard)]
if standard not in data:
data[standard] = ''
fields = standardfields[:-1] + fields + [standardfields[-1]]
def saver(ponyfile, ponyheight, ponywidth, data, image):
class Saver:
def __init__(self, ponyfile, ponyheight, ponywidth, data, image):
(self.ponyfile, self.ponyheight, self.ponywidth, self.data, self.image) = (ponyfile, ponyheight, ponywidth, data, image)
def ____(self):
comment = self.data['comment']
comment = ('\n' + comment + '\n').replace('\n$$$\n', '\n\\$$$\n')[:-1]
meta = []
for key in self.data:
if (key == 'comment') or (len(self.data[key].strip()) == 0):
continue
values = self.data[key].strip()
for value in values.split('\n'):
meta.append(key + ': ' + value)
meta.append('WIDTH: ' + str(self.ponywidth))
meta.append('HEIGHT: ' + str(self.ponyheight))
meta.append(comment)
meta = '\n'.join(meta)
ponydata = '$$$\n' + meta + '\n$$$\n' + '\n'.join(self.image)
with open(self.ponyfile, 'wb') as file:
file.write(ponydata.encode('utf8'))
file.flush()
return Saver(ponyfile, ponyheight, ponywidth, data, image)
textarea = TextArea(fields, data, 1, 3, termsize[1] - ponywidth, termsize[0] - 2, termsize)
textarea.run(saver(ponyfile, ponyheight, ponywidth, data, image))
'''
GNU Emacs alike text area
'''
class TextArea:
'''
Constructor
@param fields:list<str> Field names
@param datamap:dist<str,str> Data map
@param left:int Left position of the component
@param top:int Top position of the component
@param width:int Width of the component
@param height:int Height of the component
@param termsize:(int,int) The height and width of the terminal
'''
def __init__(self, fields, datamap, left, top, width, height, termsize):
(self.fields, self.datamap, self.left, self.top, self.width, self.height, self.termsize) \
= (fields, datamap, left, top, width - 1, height, termsize)
'''
Execute text reading
@param saver Save method
'''
def run(self, saver):
dispfields = [item + ': ' for item in self.fields]
innerleft = UCS.dispLen(max(dispfields, key = UCS.dispLen)) + self.left
leftlines = []
datalines = []
firstline = True
y = self.top
for key in self.fields:
first = True
for line in self.datamap[key].split('\n'):
print('\033[%i;%iH\033[%s34m%s:\033[%s39m' % (y, self.left, '1;' if firstline else '', '>' if (key == 'comment') and not first else key, '21;' if firstline else''), end='')
leftlines.append(key)
datalines.append(line)
first = firstline = False
y += 1
(termh, termw) = self.termsize
(y, x) = (0, 0)
mark = None
def status(text):
print('\033[%i;%iH\033[7m%s\033[27m\033[%i;%iH' % (termh - 1, 1, ' (' + text + ') ' + '-' * (termw - len(' (' + text + ') ')), self.top + y, innerleft + x), end='')
status('unmodified')
print('\033[%i;%iH' % (self.top, innerleft), end='')
def alert(text):
if text is None:
alert('')
else:
print('\033[%i;%iH\033[2K%s\033[%i;%iH' % (termh, 1, text, self.top + y, innerleft + x), end='')
modified = False
override = False
(oldy, oldx, oldmark) = (y, x, mark)
stored = None
alerted = False
edited = False
while True:
if (oldmark is not None) and (oldmark >= 0):
if oldmark < oldx:
print('\033[%i;%iH\033[49m%s\033[%i;%iH' % (self.top + oldy, innerleft + oldmark, datalines[y][oldmark : oldx], self.top + y, innerleft + x), end='')
elif oldmark > oldx:
print('\033[%i;%iH\033[49m%s\033[%i;%iH' % (self.top + oldy, innerleft + oldx, datalines[y][oldx : oldmark], self.top + y, innerleft + x), end='')
if (mark is not None) and (mark >= 0):
if mark < x:
print('\033[%i;%iH\033[44m%s\033[49m\033[%i;%iH' % (self.top + y, innerleft + mark, datalines[y][mark : x], self.top + y, innerleft + x), end='')
elif mark > x:
print('\033[%i;%iH\033[44m%s\033[49m\033[%i;%iH' % (self.top + y, innerleft + x, datalines[y][x : mark], self.top + y, innerleft + x), end='')
(oldy, oldx, oldmark) = (y, x, mark)
if edited:
edited = False
if not modified:
modified = True
status('modified' + (' override' if override else ''))
sys.stdout.flush()
if stored is None:
d = sys.stdin.read(1)
else:
d = stored
stored = None
if alerted:
alerted = False
alert(None)
if ord(d) == ord('@') - ord('@'):
if mark is None:
mark = x
alert('Mark set')
elif mark == ~x:
mark = x
alert('Mark activated')
elif mark == x:
mark = ~x
alert('Mark deactivated')
else:
mark = x
alert('Mark set')
elif ord(d) == ord('X') - ord('@'):
alert('C-x')
alerted = True
sys.stdout.flush()
d = sys.stdin.read(1)
alert(str(ord(d)))
sys.stdout.flush()
if ord(d) == ord('X') - ord('@'):
if (mark is not None) and (mark >= 0):
x ^= mark; mark ^= x; x ^= mark
alert('Mark swapped')
else:
alert('No mark is activated')
elif ord(d) == ord('S') - ord('@'):
# TODO saver()
status('unmodified' + (' override' if override else ''))
alert('Saved')
elif ord(d) == ord('C') - ord('@'):
break
else:
stored = d
alerted = False
alert(None)
elif (ord(d) == 127) or (ord(d) == 8):
removed = 1
if (mark is not None) and (mark >= 0) and (mark != x):
if mark > x:
x ^= mark; mark ^= x; x ^= mark
removed = x - mark
if x == 0:
alert('At beginning')
alerted = True
continue
dataline = datalines[y]
datalines[y] = dataline = dataline[:x - removed] + dataline[x:]
x -= removed
mark = None
print('\033[%i;%iH%s%s\033[%i;%iH' % (self.top + y, innerleft, dataline, ' ' * removed, self.top + y, innerleft + x), end='')
edited = True
elif ord(d) < ord(' '):
if ord(d) == ord('F') - ord('@'):
if x < len(datalines[y]):
x += 1
print('\033[C', end='')
else:
alert('At end')
alerted = True
elif ord(d) == ord('B') - ord('@'):
if x > 0:
x -= 1
print('\033[D', end='')
else:
alert('At beginning')
alerted = True
elif d == '\033':
d = sys.stdin.read(1)
if d == '[':
d = sys.stdin.read(1)
if d == 'C':
if x < len(datalines[y]):
x += 1
print('\033[C', end='')
else:
alert('At end')
alerted = True
elif d == 'D':
if x > 0:
x -= 1
print('\033[D', end='')
else:
alert('At beginning')
alerted = True
elif d == '2':
d = sys.stdin.read(1)
if d == '~':
override = not override
status(('modified' if modified else 'unmodified') + (' override' if override else ''))
elif d == '3':
d = sys.stdin.read(1)
if d == '~':
removed = 1
if (mark is not None) and (mark >= 0) and (mark != x):
if mark < x:
x ^= mark; mark ^= x; x ^= mark
removed = mark - x
dataline = datalines[y]
if x == len(dataline):
alert('At end')
alerted = True
continue
datalines[y] = dataline = dataline[:x] + dataline[x + removed:]
print('\033[%i;%iH%s%s\033[%i;%iH' % (self.top + y, innerleft, dataline, ' ' * removed, self.top + y, innerleft + x), end='')
mark = None
edited = True
else:
while True:
d = sys.stdin.read(1)
if (ord('a') <= ord(d)) and (ord(d) <= ord('z')): break
if (ord('A') <= ord(d)) and (ord(d) <= ord('Z')): break
if d == '~': break
elif d == 'O':
d = sys.stdin.read(1)
if d == 'H':
x = 0
elif d == 'F':
x = len(datalines[y])
print('\033[%i;%iH' % (self.top + y, innerleft + x), end='')
elif d == '\n':
break
else:
insert = d
if len(insert) == 0:
continue
dataline = datalines[y]
if (not override) or (x == len(dataline)):
print(insert + dataline[x:], end='')
if len(dataline) - x > 0:
print('\033[%iD' % (len(dataline) - x), end='')
datalines[y] = dataline[:x] + insert + dataline[x:]
if (mark is not None) and (mark >= 0):
if mark >= x:
mark += len(insert)
else:
print(insert, end='')
datalines[y] = dataline[:x] + insert + dataline[x + 1:]
x += len(insert)
edited = True
'''
Start the program from ponysay.__init__ if this is the executed file
'''
if __name__ == '__main__':
'''
The user's home directory
'''
HOME = os.environ['HOME'] if 'HOME' in os.environ else os.path.expanduser('~')
'''
Whether stdin is piped
'''
pipelinein = not sys.stdin.isatty()
'''
Whether stdout is piped
'''
pipelineout = not sys.stdout.isatty()
'''
Whether stderr is piped
'''
pipelineerr = not sys.stderr.isatty()
usage_program = '\033[34;1mponysay-tool\033[21;39m'
usage = '\n'.join(['%s %s' % (usage_program, '(--help | --version)'),
'%s %s' % (usage_program, '--edit \033[4mPONY-FILE\033[24m'),])
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 = 'ponysay-tool',
description = 'Tool chest for ponysay',
usage = usage,
longdescription = None)
opts.add_argumentless(['-h', '--help'], help = 'Print this help message.')
opts.add_argumentless(['-v', '--version'], help = 'Print the version of the program.')
opts.add_argumented( ['--edit'], arg = 'PONY-FILE', help = 'Edit a pony file\'s meta data')
'''
Whether at least one unrecognised option was used
'''
unrecognised = not opts.parse()
PonysayTool(args = opts)