rewrite cli
This commit is contained in:
davisgoglin
Davis Goglin
parent
81b3c1a63a
commit
99291abd10
551
escpos/cli.py
551
escpos/cli.py
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@ -1,213 +1,364 @@
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#!/usr/bin/env python2
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""A simple command-line interface for common python-escpos functionality
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Usage: python -m escpos.cli --help
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Dependencies:
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- DavisGoglin/python-escpos or better
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- A file named weather.png (for the 'test' subcommand)
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Reasons for using the DavisGoglin/python-escpos fork:
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- image() accepts a PIL.Image object rather than requiring me to choose
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between writing a temporary file to disk or calling a "private" method.
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- fullimage() allows me to print images of arbitrary length using slicing.
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How to print unsupported barcodes:
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barcode -b 'BARCODE' -e 'code39' -E | convert -density 200% eps:- code.png
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python test_escpos.py --images code.png
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Copyright (C) 2014 Stephan Sokolow (deitarion/SSokolow)
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
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OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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"""
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from __future__ import absolute_import
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from __future__ import absolute_import
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__author__ = "Stephan Sokolow (deitarion/SSokolow)"
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__license__ = "MIT"
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import re
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from escpos import printer
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epson = printer.Usb(0x0416, 0x5011)
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# TODO: Un-hardcode this
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def _print_text_file(path):
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"""Print the given text file"""
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epson.set(align='left')
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with open(path, 'rU') as fobj:
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for line in fobj:
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epson.text(line)
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def _print_image_file(path):
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"""Print the given image file."""
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epson.fullimage(path, histeq=False, width=384)
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def print_files(args):
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"""The 'print' subcommand"""
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for path in args.paths:
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if args.images:
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_print_image_file(path)
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else:
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_print_text_file(path)
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epson.cut()
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# {{{ 'echo' Subcommand
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KNOWN_BARCODE_TYPES = ['UPC-A', 'UPC-E', 'EAN13', 'ITF']
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re_barcode_escape = re.compile(r'^%(?P<type>\S+)\s(?P<data>[0-9X]+)$')
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def echo(args): # pylint: disable=unused-argument
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"""TTY-like line-by-line keyboard-to-printer echo loop."""
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try:
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while True:
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line = raw_input()
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match = re_barcode_escape.match(line)
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if match and match.group('type') in KNOWN_BARCODE_TYPES:
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bctype, data = match.groups()
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epson.barcode(data, bctype, 48, 2, '', '')
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epson.set(align='left')
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else:
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epson.text('{0}\n'.format(line))
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except KeyboardInterrupt:
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epson.cut()
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# }}}
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# {{{ 'test' Subcommand
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from PIL import Image, ImageDraw
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def _stall_test(width, height):
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"""Generate a pattern to detect print glitches due to vertical stalling."""
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img = Image.new('1', (width, height))
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for pos in [(x, y) for y in range(0, height) for x in range(0, width)]:
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img.putpixel(pos, not sum(pos) % 10)
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return img
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def _test_basic():
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"""The original test code from python-escpos's Usage wiki page"""
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epson.set(align='left')
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# Print text
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epson.text("TODO:\n") # pylint: disable=fixme
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epson.text("[ ] Task 1\n")
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epson.text("[ ] Task 2\n")
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# Print image
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# TODO: Bundle an image so this can be used
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# epson.image("weather.png")
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# Print QR Code (must have a white border to be scanned)
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epson.set(align='center')
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epson.text("Scan to recall TODO list") # pylint: disable=fixme
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epson.qr("http://www.example.com/")
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# Print barcode
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epson.barcode('1234567890128', 'EAN13', 32, 2, '', '')
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# Cut paper
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epson.cut()
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def _test_barcodes():
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"""Print test barcodes for all ESCPOS-specified formats."""
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for name, data in (
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# pylint: disable=bad-continuation
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('UPC-A', '123456789012\x00'),
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('UPC-E', '02345036\x00'),
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('EAN13', '1234567890128\x00'),
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('EAN8', '12345670\x00'),
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('CODE39', 'BARCODE12345678\x00'),
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('ITF', '123456\x00'),
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('CODABAR', 'A40156B'),
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# TODO: CODE93 and CODE128
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):
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# TODO: Fix the library to restore old alignment somehow
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epson.set(align='center')
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epson.text('\n{0}\n'.format(name))
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epson.barcode(data, name, 64, 2, '', '')
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def _test_patterns(width=384, height=255):
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"""Print a set of test patterns for raster image output."""
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# Test our guess of the paper width
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img = Image.new('1', (width, height), color=1)
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draw = ImageDraw.Draw(img)
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draw.polygon(((0, 0), img.size, (0, img.size[1])), fill=0)
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epson.image(img)
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del draw, img
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# Test the consistency of printing large data and whether stall rate is
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# affected by data rate
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epson.image(_stall_test(width, height))
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epson.image(_stall_test(width / 2, height))
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def test(args):
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"""The 'test' subcommand"""
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if args.barcodes:
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_test_barcodes()
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elif args.patterns:
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_test_patterns()
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else:
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_test_basic()
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# }}}
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def main():
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"""Wrapped in a function for import and entry point compatibility"""
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# pylint: disable=bad-continuation
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import argparse
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import argparse
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import sys
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import serial
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from escpos import printer
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from escpos import constants
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parser = argparse.ArgumentParser(
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parser = argparse.ArgumentParser(
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description="Command-line interface to python-escpos")
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description='CLI for python-escpos',
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subparsers = parser.add_subparsers(title='subcommands')
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epilog='To see help for escpos commands, run with a destination defined.',
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)
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dest_subparsers = parser.add_subparsers(
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title='Destination',
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)
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echo_parser = subparsers.add_parser('echo', help='Echo the keyboard to '
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parser_dest_file = dest_subparsers.add_parser('file', help='Print to a file')
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'the printer line-by-line (Exit with Ctrl+C)')
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parser_dest_file.set_defaults(func=printer.File)
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echo_parser.set_defaults(func=echo)
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parser_dest_file.add_argument(
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'--devfile',
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help='Destination file',
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required=True
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)
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print_parser = subparsers.add_parser('print', help='Print the given files')
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parser_dest_network = dest_subparsers.add_parser('network', help='Print to a network device')
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print_parser.add_argument('--images', action='store_true',
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parser_dest_network.set_defaults(func=printer.Network)
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help="Provided files are images rather than text files.")
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parser_dest_network.add_argument(
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print_parser.add_argument('paths', metavar='path', nargs='+')
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'--host',
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print_parser.set_defaults(func=print_files)
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help='Destination host',
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required=True
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)
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parser_dest_network.add_argument(
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'--port',
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help='Destination port',
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type=int
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)
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parser_dest_network.add_argument(
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'--timeout',
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help='Timeout in seconds',
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type=int
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)
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test_parser = subparsers.add_parser('test', help='Print test patterns')
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parser_dest_usb = dest_subparsers.add_parser('usb', help='Print to a usb device')
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test_modes = test_parser.add_mutually_exclusive_group()
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parser_dest_usb.set_defaults(func=printer.Usb)
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test_modes.add_argument('--barcodes', action='store_true',
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parser_dest_usb.add_argument(
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help="Test supported barcode types (Warning: Some printers must be "
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'--idVendor',
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"reset after attempting an unsupported barcode type.)")
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help='USB Vendor ID',
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test_modes.add_argument('--patterns', action='store_true',
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required=True
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help="Print test patterns")
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)
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test_parser.set_defaults(func=test)
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parser_dest_usb.add_argument(
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'--idProduct',
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help='USB Device ID',
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required=True
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)
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parser_dest_usb.add_argument(
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'--interface',
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help='USB device interface',
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type=int
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)
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parser_dest_usb.add_argument(
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'--in_ep',
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help='Input end point',
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type=int
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)
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parser_dest_usb.add_argument(
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'--out_ep',
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help='Output end point',
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type=int
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)
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args = parser.parse_args()
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parser_dest_serial = dest_subparsers.add_parser(
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args.func(args)
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'serial',
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help='Print to a serial device'
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)
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parser_dest_serial.set_defaults(func=printer.Serial)
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parser_dest_serial.add_argument(
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'--devfile',
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help='Device file'
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)
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parser_dest_serial.add_argument(
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'--baudrate',
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help='Baudrate for serial transmission',
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type=int
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)
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parser_dest_serial.add_argument(
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'--bytesize',
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help='Serial byte size',
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type=int
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)
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parser_dest_serial.add_argument(
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'--timeout',
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help='Read/Write timeout in seconds',
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type=int
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)
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parser_dest_serial.add_argument(
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'--parity',
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help='Parity checking',
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choices=[serial.PARITY_NONE, serial.PARITY_EVEN, serial.PARITY_ODD, serial.PARITY_MARK, serial.PARITY_SPACE],
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)
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parser_dest_serial.add_argument(
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'--stopbits',
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help='Number of stopbits',
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choices=[serial.STOPBITS_ONE, serial.STOPBITS_ONE_POINT_FIVE, serial.STOPBITS_TWO],
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)
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parser_dest_serial.add_argument(
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'--xonxoff',
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help='Software flow control',
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type=bool
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)
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parser_dest_serial.add_argument(
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'--dsrdtr',
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help='Hardware flow control (False to enable RTS,CTS)',
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type=bool
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)
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if __name__ == '__main__':
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cmd_parser = argparse.ArgumentParser(
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main()
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description='Parser for escpos commands',
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usage='{previous command parts} {espos command} ...',
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)
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# vim: set sw=4 sts=4 :
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command_subparsers = cmd_parser.add_subparsers(
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title='ESCPOS Command',
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)
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# From here on func needs to be a string, since we don't have a printer to work on yet
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parser_command_qr = command_subparsers.add_parser('qr', help='Print a QR code')
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parser_command_qr.set_defaults(func='qr')
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parser_command_qr.add_argument(
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'--text',
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help='Text to print as a qr code',
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required=True
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)
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parser_command_barcode = command_subparsers.add_parser('barcode', help='Print a barcode')
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parser_command_barcode.set_defaults(func='barcode')
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parser_command_barcode.add_argument(
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'--code',
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help='Barcode data to print',
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required=True,
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)
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parser_command_barcode.add_argument(
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'--bc',
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help='Barcode format',
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required=True,
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)
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parser_command_barcode.add_argument(
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'--height',
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help='Barcode height in px',
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type=int
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)
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parser_command_barcode.add_argument(
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'--width',
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help='Barcode width',
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type=int
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)
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parser_command_barcode.add_argument(
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'--pos',
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help='Label position',
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choices=['BELOW', 'ABOVE', 'BOTH', 'OFF']
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)
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parser_command_barcode.add_argument(
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'--font',
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help='Label font',
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choices=['A', 'B']
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)
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parser_command_barcode.add_argument(
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'--align_ct',
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help='Align barcode center',
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type=bool,
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)
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parser_command_barcode.add_argument(
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'--function_type',
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help='ESCPOS function type',
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choices=['A', 'B']
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)
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parser_command_text = command_subparsers.add_parser('text', help='Print plain text')
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parser_command_text.set_defaults(func='text')
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parser_command_text.add_argument(
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'--txt',
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help='Text to print',
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required=True
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)
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parser_command_block_text = command_subparsers.add_parser('block_text', help='Print wrapped text')
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parser_command_block_text.set_defaults(func='block_text')
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parser_command_block_text.add_argument(
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'--txt',
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help='block_text to print',
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required=True
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)
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parser_command_block_text.add_argument(
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'--columns',
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help='Number of columns',
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type=int,
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)
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|
parser_command_cut = command_subparsers.add_parser('cut', help='Cut the paper')
|
||||||
|
parser_command_cut.set_defaults(func='cut')
|
||||||
|
parser_command_cut.add_argument(
|
||||||
|
'--mode',
|
||||||
|
help='Type of cut',
|
||||||
|
choices=['FULL', 'PART']
|
||||||
|
)
|
||||||
|
|
||||||
|
parser_command_cashdraw = command_subparsers.add_parser('cashdraw', help='Kick the cash drawer')
|
||||||
|
parser_command_cashdraw.set_defaults(func='cashdraw')
|
||||||
|
parser_command_cashdraw.add_argument(
|
||||||
|
'--pin',
|
||||||
|
help='Which PIN to kick',
|
||||||
|
choices=[2, 5]
|
||||||
|
)
|
||||||
|
|
||||||
|
parser_command_image = command_subparsers.add_parser('image', help='Print an image')
|
||||||
|
parser_command_image.set_defaults(func='image')
|
||||||
|
parser_command_image.add_argument(
|
||||||
|
'--path_img',
|
||||||
|
help='Path to image',
|
||||||
|
required=True
|
||||||
|
)
|
||||||
|
|
||||||
|
parser_command_fullimage = command_subparsers.add_parser('fullimage', help='Print an fullimage')
|
||||||
|
parser_command_fullimage.set_defaults(func='fullimage')
|
||||||
|
parser_command_fullimage.add_argument(
|
||||||
|
'--img',
|
||||||
|
help='Path to img',
|
||||||
|
required=True
|
||||||
|
)
|
||||||
|
parser_command_fullimage.add_argument(
|
||||||
|
'--max_height',
|
||||||
|
help='Max height of image in px',
|
||||||
|
type=int
|
||||||
|
)
|
||||||
|
parser_command_fullimage.add_argument(
|
||||||
|
'--width',
|
||||||
|
help='Max width of image in px',
|
||||||
|
type=int
|
||||||
|
)
|
||||||
|
parser_command_fullimage.add_argument(
|
||||||
|
'--histeq',
|
||||||
|
help='Equalize the histrogram',
|
||||||
|
type=bool
|
||||||
|
)
|
||||||
|
parser_command_fullimage.add_argument(
|
||||||
|
'--bandsize',
|
||||||
|
help='Size of bands to divide into when printing',
|
||||||
|
type=int
|
||||||
|
)
|
||||||
|
|
||||||
|
# Not supported
|
||||||
|
# parser_command_direct_image = command_subparsers.add_parser('direct_direct_image', help='Print an direct_image')
|
||||||
|
# parser_command_direct_image.set_defaults(func='direct_image')
|
||||||
|
|
||||||
|
parser_command_charcode = command_subparsers.add_parser('charcode', help='Set character code table')
|
||||||
|
parser_command_charcode.set_defaults(func='charcode')
|
||||||
|
parser_command_charcode.add_argument(
|
||||||
|
'--code',
|
||||||
|
help='Character code',
|
||||||
|
required=True
|
||||||
|
)
|
||||||
|
|
||||||
|
parser_command_set = command_subparsers.add_parser('set', help='Set text properties')
|
||||||
|
parser_command_set.set_defaults(func='set')
|
||||||
|
parser_command_set.add_argument(
|
||||||
|
'--align',
|
||||||
|
help='Horizontal alignment',
|
||||||
|
choices=['left', 'center', 'right']
|
||||||
|
)
|
||||||
|
parser_command_set.add_argument(
|
||||||
|
'--font',
|
||||||
|
help='Font choice',
|
||||||
|
choices=['left', 'center', 'right']
|
||||||
|
)
|
||||||
|
parser_command_set.add_argument(
|
||||||
|
'--text_type',
|
||||||
|
help='Text properties',
|
||||||
|
choices=['B', 'U', 'U2', 'BU', 'BU2', 'NORMAL']
|
||||||
|
)
|
||||||
|
parser_command_set.add_argument(
|
||||||
|
'--width',
|
||||||
|
help='Width multiplier',
|
||||||
|
type=int
|
||||||
|
)
|
||||||
|
parser_command_set.add_argument(
|
||||||
|
'--height',
|
||||||
|
help='Height multiplier',
|
||||||
|
type=int
|
||||||
|
)
|
||||||
|
parser_command_set.add_argument(
|
||||||
|
'--density',
|
||||||
|
help='Print density',
|
||||||
|
type=int
|
||||||
|
)
|
||||||
|
parser_command_set.add_argument(
|
||||||
|
'--invert',
|
||||||
|
help='White on black printing',
|
||||||
|
type=bool
|
||||||
|
)
|
||||||
|
parser_command_set.add_argument(
|
||||||
|
'--smooth',
|
||||||
|
help='Text smoothing. Effective on >= 4x4 text',
|
||||||
|
type=bool
|
||||||
|
)
|
||||||
|
parser_command_set.add_argument(
|
||||||
|
'--flip',
|
||||||
|
help='Text smoothing. Effective on >= 4x4 text',
|
||||||
|
type=bool
|
||||||
|
)
|
||||||
|
|
||||||
|
parser_command_hw = command_subparsers.add_parser('hw', help='Hardware operations')
|
||||||
|
parser_command_hw.set_defaults(func='hw')
|
||||||
|
parser_command_hw.add_argument(
|
||||||
|
'--hw',
|
||||||
|
help='Operation',
|
||||||
|
choices=['INIT', 'SELECT', 'RESET'],
|
||||||
|
required=True
|
||||||
|
)
|
||||||
|
|
||||||
|
parser_command_control = command_subparsers.add_parser('control', help='Control sequences')
|
||||||
|
parser_command_control.set_defaults(func='control')
|
||||||
|
parser_command_control.add_argument(
|
||||||
|
'--ctl',
|
||||||
|
help='Control sequence',
|
||||||
|
choices=['LF', 'FF', 'CR', 'HT', 'VT'],
|
||||||
|
required=True
|
||||||
|
)
|
||||||
|
parser_command_control.add_argument(
|
||||||
|
'--pos',
|
||||||
|
help='Horizontal tab position (1-4)',
|
||||||
|
type=int
|
||||||
|
)
|
||||||
|
|
||||||
|
parser_command_panel_buttons = command_subparsers.add_parser('panel_buttons', help='Disables panel buttons')
|
||||||
|
parser_command_panel_buttons.set_defaults(func='panel_buttons')
|
||||||
|
parser_command_panel_buttons.add_argument(
|
||||||
|
'--enable',
|
||||||
|
help='Feed button enabled',
|
||||||
|
type=bool,
|
||||||
|
required=True
|
||||||
|
)
|
||||||
|
|
||||||
|
# Get arguments along with function to pass them to
|
||||||
|
args, rest = parser.parse_known_args()
|
||||||
|
|
||||||
|
# filter out function name and non passed arguments
|
||||||
|
func_args = dict((k, v) for k, v in vars(args).iteritems() if v and k != 'func')
|
||||||
|
|
||||||
|
# define a printer
|
||||||
|
p = args.func(**func_args)
|
||||||
|
|
||||||
|
if not rest:
|
||||||
|
cmd_parser.print_help()
|
||||||
|
sys.exit(1)
|
||||||
|
|
||||||
|
cmd_args = cmd_parser.parse_args(rest)
|
||||||
|
|
||||||
|
# filter out function name and non passed arguments
|
||||||
|
func_args = dict((k, v) for k, v in vars(cmd_args).iteritems() if v and k != 'func')
|
||||||
|
|
||||||
|
# print command with args
|
||||||
|
getattr(p, cmd_args.func)(**func_args)
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue