SCPI-99:6.2.5.2 Multiple Identical Capabilities about scpi-parser

[j123b567]

Hi Manuel,
partial fix for your problem is this commit f2dbd1c. Without this, you should define 9 patterns to realise your task as described in #13 (comment).

I have currently no time to write extracting numbers from command so it is up to you to do so.

You can read variable context->paramlist.cmd_raw.data and context->paramlist.cmd_raw.length. Data after length are not for you. You can use variable context->paramlist.cmd_raw.position to track your position while parsing cmd_raw. Example is in "examples" in function TEST_Numbers. Pattern actualy used is in variable context->paramlist.cmd->pattern so you can use it for extraction.

If you can write some functions to extract numbers from data I will be happy to merge it to main line.

Best regards,
Jan

[manuelk2007]

Hi Jan,
thank you very much. I will try it in the future.
At the moment, I have no time to try this.

But thank you for your effort and very fast response.

With kind regards

Manuel

[j123b567]

Now it is possible to have pattern OUT#:FREQuency
and commands OUT1:FREQ, OUT2:FREQ and OUT:FREQ

Unsupported range is up to user

In handler function, just call SCPI_CommandNumbers and it will fill
appropriate array

[qwe2tz]

Hello,

would it be possible to get a test example or some kind of documentation regarding this issue? I am trying to implement OUT#:FREQuency but I don't know how to parse out the numbers (e.g.: OUT1:FREQ and OUT2:FREQ).

Thanks in advance!

[j123b567]

There is an example in scpi-def.c

pattern:

{.pattern = "TEST#:NUMbers#", .callback = TEST_Numbers,},

callback

static scpi_result_t TEST_Numbers(scpi_t * context) {
    int32_t numbers[2];

    SCPI_CommandNumbers(context, numbers, 2);

    fprintf(stderr, "TEST numbers %d %d\r\n", numbers[0], numbers[1]);

    return SCPI_RES_OK;
}

Because there are two # in pattern, expected size of numbers array is 2 and third parameter is also 2.
If you call for example

TEST2:NUM3
> TEST numbers 2 3

TEST:NUM3
> TEST numbers 1 3

TEST:NUM
> TEST numbers 1 1

[j123b567]

I have also updated documentation accordingly. http://j123b567.github.io/scpi-parser/api/scpi_commandnumbers/

[qwe2tz]

Thank you very much for these clarifications :)