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Re: [Discuss-gnuradio] XML parameter checking
From: |
Marcus Müller |
Subject: |
Re: [Discuss-gnuradio] XML parameter checking |
Date: |
Thu, 19 Oct 2017 11:36:12 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0 |
Hi Mike,
what's in the <check> tag just needs to be a valid Python expression,
afaik. So,
$psize % 8 == 0
would work (notice the double =; this is comparison, not assignment!).
For comparison, see the gr-audio/grc/analog_nbfm_rx.xml, for example.
Best regards,
Marcus
On 2017-10-19 04:02, Mike Rex wrote:
What would be the best way to make sure the user enters a parameter
that is a multiple of 8 in the GRC XML file? My first thought is this
might do the trick, but seems there is no mod function for XML. Any
suggestions?
<check>$psize % 8 = 0</check> or <check>$psize mod 8 = 0</check>
Thanks in advance,
Mike
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