英文:
GO cobra: space separated values in StringArray flags
问题
在GO的Cobra中,用于创建命令行界面的库,有两个接受多个值的输入标志。其中一个选项是StringArray
,用法如下:
--flag=value1 --flag=value2
它会生成一个数组["value1", "value2"]
。
我正在为一个工具开发一个替代品,该工具期望接收稍微复杂一些的输入:
--flag=valueA1 valueB1 --flag=valueA2 valueB2
它应该生成一个数组["valueA1 valueB1", "valueA2 valueB2"]
。
在Cobra中是否有一种方法可以解析整个字符串直到下一个标志,并将其包含在StringArray值中,就像上面的例子一样?
英文:
In GO's Cobra, lib for making CLIs, there are two input flags accepting multiple values being passed. One of the options is StringArray
, when used as follows:
--flag=value1 --flag=value2
it yields an array ["value1", "value2"]
.
I am working on a drop-in replacement for a tool that expects somewhat more complex input:
--flag=valueA1 valueB1 --flag=valueA2 valueB2
the array it should yield would be ["valueA1 valueB1", "valueA2 valueB2"]
is there a way in cobra to parse the entire string until the next flag and include it in StringArray value like above?
答案1
得分: 3
在 cobra 中没有内置的方法来做到这一点,因为会存在歧义。例如,在存在名为 valueB1
或 valueB2
的子命令的情况下,不清楚这些命令是应该作为子命令执行还是解释为 --flag
的附加参数。
支持这种输入的标准方式是期望输入值被引号引起来,而 cobra 支持这一点。例如:
--flag="valueA1 valueB1" --flag="valueA2 valueB2"
英文:
There isn't a built-in way in cobra to do this, as there will be ambiguity. For example, in the case when there is also a sub-command named valueB1
or valueB2
, it's not clear whether those should be executed as subcommands or interpreted as additional argument to --flag
.
The standard way to support an input like this is to expect the the input values are quoted, and cobra supports that. E.g.:
--flag="valueA1 valueB1" --flag="valueA2 valueB2"
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