input_for_path.py 文件源码

def transform_aliases(self, string):
        """Transform aliases using the settings and the default variables
        It's recursive, so you can use aliases *in* your aliases' values
        """

        def has_unescaped_dollar(string):
            start = 0
            while True:
                index = string.find('$', start)
                if index < 0:
                    return False
                elif string[index-1] == '\\':
                    start = index + 1
                else:
                    return True

        string = string.replace('$$', '\\$')

        vars = self.window.extract_variables()
        vars.update(get_settings().get('aliases'))

        inifinite_loop_counter = 0
        while has_unescaped_dollar(string):
            inifinite_loop_counter += 1
            if inifinite_loop_counter > 100:
                sublime.error_message("Infinite loop: you better check your "
                                      "aliases, they're calling each other "
                                      "over and over again.")
                if get_settings().get('open_help_on_alias_infinite_loop',
                                      True) is True:

                    sublime.run_command('open_url', {
                        'url': 'https://github.com/math2001/ '
                               'FileManager/wiki/Aliases '
                               '#watch-out-for-infinite-loops'
                    })
                return string
            string = sublime.expand_variables(string, vars)

        return string