Hi Igor,
Adding-back the list to the discussion, I removed it by mistake in my
first answer.
>> 14 ????. 2014 ?., ? 12:20, Olivier MATZ <olivier.matz at 6wind.com>
>> ???????(?):
>>
>> Hi Igor,
>>
>> On 11/14/2014 09:52 AM, Igor Ryzhov wrote:
>>> Are there any docs with detailed description of cmdline library?
>>> I found only some information in ?DPDK Sample Apps? document, but it
>>> describes only a couple of features.
>>
>> In my knowledge, there is no such documentation.
>> You can also refer to testpmd that gives a lot of different commands.
>>
>> If you have any question, you can ask on the list.
>>
>> Regards,
>> Olivier
>
> Thank you, I?ll check testpmd.
>
> At the moment I have a question - is there a possibility to have optional
> tokens in one command?
>
> For example:
>
> I have one command - ?object? and two subcommands - ?add? and ?del?:
>
> object add name IP
> object del name
>
> And the question is - can I have just one context instruction for this?
> Something like that:
>
> Result struct:
>
> struct object_result {
> cmdline_fixed_string_t object;
> cmdline_fixed_string_t cmd;
> cmdline_fixed_string_t name;
> cmdline_ipaddr_t ip; // I need it optional - only
> for ?add? case
> }
>
> And tokens:
>
> cmdline_parse_token_string_t object =
> TOKEN_STRING_INITIALIZER(struct object_result, object, "object");
> cmdline_parse_token_string_t cmd =
> TOKEN_STRING_INITIALIZER(struct object_result, cmd, "add#del");
> cmdline_parse_token_string_t name =
> TOKEN_STRING_INITIALIZER(struct object_result, name, NULL);
> cmdline_parse_token_ipaddr_t ip =
> TOKEN_IPV4_INITIALIZER(struct object_result, ip, NULL);
>
> As I understand investigating the code of sample application - all tokens are
> required (because there are two different instructions - for ?add? and for
> ?del/show?).
> And in this example configuration there is no possibility for string ?object
> del name? without last IP token.
> So I need to have two different context instructions - one for ?add? and one
> for ?del?.
> Am I right?
Right, there is no way to declare an optional token in one instruction.
But if there are few case (ex: a "set" and a "show" intructions), you
can factorize the structure and the callback function. There is an
example in my latest TSO patch:
http://dpdk.org/ml/archives/dev/2014-November/007962.html
Regards,
Olivier
