poezio/plugins/alias.py

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"""
Alias plugin.
Allows the creation and the removal of personal aliases.
"""
from plugin import BasePlugin
import common
from common import parse_command_args_to_alias as parse
class Plugin(BasePlugin):
def init(self):
self.add_command('alias', self.command_alias, '/alias <alias> <command> <args>\nAlias: create an alias command')
self.add_command('unalias', self.command_unalias, '/unalias <alias>\nUnalias: remove a previously created alias')
self.commands = {}
def command_alias(self, line):
"""
/alias <alias> <command> [args]
"""
arg = common.shell_split(line)
if len(arg) < 2:
self.core.information('Alias: Not enough parameters', 'Error')
return
alias = arg[0]
command = arg[1]
tmp_args = arg[2] if len(arg) > 2 else ''
if alias in self.core.commands or alias in self.commands:
self.core.information('Alias: command already exists', 'Error')
return
self.commands[alias] = lambda arg: self.get_command(command)(parse(arg, tmp_args))
self.add_command(alias, self.commands[alias], 'This command is an alias for /%s %s' %( command, tmp_args))
self.core.information('Alias /%s successfuly created' % alias, 'Info')
def command_unalias(self, alias):
"""
/unalias <existing alias>
"""
if alias in self.commands:
del self.commands[alias]
self.del_command(alias)
self.core.information('Alias /%s successfuly deleted' % alias, 'Info')
def get_command(self, name):
"""Returns the function associated with a command"""
def dummy(args):
"""Dummy function called if the command doesnt exist"""
pass
if name in self.core.commands:
return self.core.commands[name][0]
elif name in self.core.current_tab().commands:
return self.core.current_tab().commands[name][0]
return dummy