Multiple valued option - how to?

[OnkelTem]

I want to declare an option which could be invoked several times, e.g.:

--option value1 --option value2 --option value3

This is similar to what tar have for files exclusion, .e.g

$ tar --exclude='./folder' --exclude='./upload/folder2' -zcvf /backup/filename.tgz .

I cannot find a way how to do this, or I'm missing something?

[NeoVance]

I don't think there is an option type for that specific case. You can use the count option type multiple times, but it does not take a value.

You can use the map or cast option to achieve that though. Just pass in a function that will add the value to an array, and return the array of values.

[OnkelTem]

You can use the map or cast option to achieve that though. Just pass in a function that will add the value to an array, and return the array of values.

Could you please provide an example? Because I tried map (not cast though) and it was called only once...

[NeoVance]

Wow. You are right. I totally missed that. I assumed it should work, but the tokens get deduped by array keys. Looks like it should be a fairly easy thing to fix though. I will look into putting up a PR soon.

[NeoVance]

See PR #93 or my branch accumulator-for-multiple-options-of-same-name 47135e1489a0b765f8269f17599c9bed117dcd4a

[OnkelTem]

@NeoVance thanks man! I'll try it and write back

[NeoVance]

Oh forgot to include the info.

reduce (Closure $reducer)

Aliases: list, each, every

Execute an accumulator/reducer function on every instance of the option in the command. Takes an accumulator function, and returns mixed (you can return any value). If you also supply a map for the option the map will execute on every value before it is passed to the accumulator function.

Signature: function(mixed $accumulated, mixed $value) : mixed

• $accumulated: null|Option::default|mixed (the last value returned from the function, the option default value, or null.)
• $value: mixed (the value that comes after the option. if map is supplied, the value returned from the map function.)
• return: mixed (anything you want. The last value returned becomes the value of the Option after parsing.)

[nategood]

Merged 93