As of the upcoming release of Kapacitor 1.1 string manipulation functions
have been added.
The function you are probably interested in is the `regexReplace` function.
It works like this:
|eval(lambda: regexReplace(/^.*-(\w\+)_.*$/, "raw_tag", '$1'))
.as('value2')
See https://golang.org/pkg/regexp/#Regexp.ReplaceAllString for more details
on the exact semantics of the regex and capture groups.
A release candidate version of version 1.1 is available on the downloads
page https://www.influxdata.com/downloads/#kapacitor
On Friday, November 4, 2016 at 1:24:41 AM UTC-6, Sean Beckett wrote:
>
> You can write a UDF
> <https://github.com/influxdata/kapacitor/tree/master/udf/agent> to do
> whatever you like, but neither Kapacitor nor InfluxDB have built-in string
> functions of any kind.
>
> On Thu, Nov 3, 2016 at 11:43 PM, Sai Birada <[email protected]
> <javascript:>> wrote:
>
>> I had a tag value stored similar to value1-value2_value3-value4. Now I
>> want to parse this string into multiple values and use those values to
>> redirect data into various measurements. For example the datapoints with
>> value1-value2_value3-value4 tag should go to measurement value2. Is there a
>> way in kapacitor to parse a string and use its parsed tokens?
>>
>> --
>> Remember to include the version number!
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>
>
>
> --
> Sean Beckett
> Director of Support and Professional Services
> InfluxDB
>
--
Remember to include the version number!
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