65 lines
2.2 KiB
Python
65 lines
2.2 KiB
Python
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"""Filter messages, displaying lines matching a pattern"""
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# PYTHON STUFFS #######################################################
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import re
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from nemubot import context
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from nemubot.exception import IMException
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from nemubot.hooks import hook
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from nemubot.message import Command, Text
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from more import Response
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# MODULE CORE #########################################################
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def grep(fltr, cmd, args, msg):
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"""Perform a grep like on known nemubot structures
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Arguments:
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fltr -- The filter regexp
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cmd -- The subcommand to execute
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args -- subcommand arguments
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msg -- The original message
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"""
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for r in context.subtreat(Command(cmd,
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args,
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to_response=msg.to_response,
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frm=msg.frm,
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server=msg.server)):
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if isinstance(r, Response):
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for i in range(len(r.messages) - 1, -1, -1):
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if isinstance(r.messages[i], list):
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for j in range(len(r.messages[i]) - 1, -1, -1):
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if not re.match(fltr, r.messages[i][j]):
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r.messages[i].pop(j)
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if len(r.messages[i]) <= 0:
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r.messages.pop(i)
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elif isinstance(r.messages[i], str) and not re.match(fltr, r.messages[i]):
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r.messages.pop(i)
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yield r
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elif isinstance(r, Text):
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if re.match(fltr, r.message):
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yield r
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else:
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yield r
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# MODULE INTERFACE ####################################################
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@hook.command("grep",
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help="Display only lines from a subcommand matching the given pattern",
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help_usage={"PTRN !SUBCMD": "Filter SUBCMD command using the pattern PTRN"})
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def cmd_grep(msg):
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if len(msg.args) < 2:
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raise IMException("Please provide a filter and a command")
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return [m for m in grep(msg.args[0] if msg.args[0][0] == "^" else ".*" + msg.args[0] + ".*",
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msg.args[1][1:] if msg.args[1][0] == "!" else msg.args[1],
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msg.args[2:],
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msg)]
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