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annotate libervia/backend/tools/common/ansi.py @ 4163:3b3cd9453d9b

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plugin XEP-0308: implement Last Message Correction
author Goffi <goffi@goffi.org>
date Tue, 28 Nov 2023 17:38:31 +0100
parents 4b842c1fb686
children
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1 #!/usr/bin/env python3
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2
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3
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4 # Libervia: an XMPP client
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5 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 import sys
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23 class ANSI(object):
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25 ## ANSI escape sequences ##
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26 RESET = "\033[0m"
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27 NORMAL_WEIGHT = "\033[22m"
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28 FG_BLACK, FG_RED, FG_GREEN, FG_YELLOW, FG_BLUE, FG_MAGENTA, FG_CYAN, FG_WHITE = (
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29 "\033[3%dm" % nb for nb in range(8)
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30 )
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31 BOLD = "\033[1m"
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32 BLINK = "\033[5m"
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33 BLINK_OFF = "\033[25m"
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35 @classmethod
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36 def color(cls, *args):
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37 """output text using ANSI codes
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39 this method simply merge arguments, and add RESET if is not the last arguments
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40 """
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41 # XXX: we expect to have at least one argument
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42 if args[-1] != cls.RESET:
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43 args = list(args)
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44 args.append(cls.RESET)
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45 return "".join(args)
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48 try:
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49 tty = sys.stdout.isatty()
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50 except (
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51 AttributeError,
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52 TypeError,
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53 ): # FIXME: TypeError is here for Pyjamas, need to be removed
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54 tty = False
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55 if not tty:
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56 #  we don't want ANSI escape codes if we are not outputing to a tty!
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57 for attr in dir(ANSI):
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58 if isinstance(getattr(ANSI, attr), str):
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59 setattr(ANSI, attr, "")
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60 del tty