Pyparsing：在结果名称中获取令牌位置

尝试将定位器添加到命令和路径表达式中：

locator = Empty().setParseAction(lambda s,l,t: l)def locatedExpr(expr):    return Group(locator("location") + expr("value"))class Shell(object):    def __init__(self):        # Simplified grammar of the command line        # path command parameters        #command = Word(alphanums + '_').setResultsName('command')        command = locatedExpr(Word(alphanums + '_'))('command')        bookmark = Regex('@([A-Za-z0-9:_.]|-)+')        pathstd = Regex('([A-Za-z0-9:_.]|-)*' + '/' + '([A-Za-z0-9:_./]|-)*')      | '..' | '.'        #path = (bookmark | pathstd | '*')('path')        path = locatedExpr(bookmark | pathstd | '*')('path')        parser = Optional(path) + Optional(command) # + Optional(parameters)        self.parser = parser

现在，您应该可以访问

path.location

path.value