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Subject: Stream device - parsing array of pairs of floats
From: Joao Afonso via Tech-talk <tech-talk@aps.anl.gov>
To: "tech-talk@aps.anl.gov" <tech-talk@aps.anl.gov>
Date: Thu, 14 Feb 2019 17:35:11 +0000
Hello,

I have a string returned by a device, representing an array where each element is a pair <time, value>:

- each pair is separated by "|": <timestamp>|<value>
- each element of the array separated by ","
- all values are floats
- the timestamp increment may not be linear (that is why it needs to be recorded)

Example
0.1000|0.1230000E+00,0.2000|0.4560000E+00,0.3000|0.7890000E+00, [...]

Is it possible to parse this using stream device (into two waveform records)?
Or do I have to use something more powerful such as asynDriver?
I have seen several examples, but only with using simple type elements, not like this.

As a followup, is it possible to do the inverse, merging two waveform records into a string?

Thank you in advance,
Joao
CERN TE-EPC-CCS


Replies:
Re: Stream device - parsing array of pairs of floats Dirk Zimoch via Tech-talk
Re: Stream device - parsing array of pairs of floats Johnson, Andrew N. via Tech-talk

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