43 lines
1.2 KiB
Python
43 lines
1.2 KiB
Python
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import readline # GNU readline (ie allows input() history buffer)
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from itertools import chain
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from bcrypter.cli.builtins import *
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from bcrypter.cli.commands import *
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from bcrypter.lib.result import Result
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from bcrypter.exceptions import CmdDeclarationError
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class REPL:
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_PROMPT = '>> '
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_DEFAULT_HISTORY_FILE = '.bcrypter_history'
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_BUILTINS = [
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BuiltinHelp(),
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]
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_COMMANDS = [
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]
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def __init__(self, history_file: str = _DEFAULT_HISTORY_FILE) -> None:
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for cmd in chain(REPL._BUILTINS, REPL._COMMANDS):
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result = cmd._is_consistent():
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if result.is_err():
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raise CmdDeclarationError(result.message)
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self._history_file = history_file
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readline.read_history_file(self._history_file)
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def __del__(self) -> None:
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readline.write_history_file(self._history_file)
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def prompt(self) -> str:
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return input(REPL._PROMPT)
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'''
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Parse and execute a string command
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'''
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def exec(self, cmd: str) -> Result[Command]:
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cmd = cmd.strip().split()
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if not len(cmd):
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return Result.warn('No command given')
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