Hello,
My objective is to clean three distinct substrings from a comma delimited string. Those substrings may all be present in the string, may not all be present in the string, or may not be present at all in the string. Their positions within the string can vary as well. Assuming values `substring1`, `substring2`, and `substring3`, here are some examples:
this,is,substring1,a,sentence,with,one
substring2,this,has,substring1,all,three,substring3
here,there,are,no,substrings
this,only,substring3,substring1,has,two
Ideally I would like to encorporate the logic within a data model, which limits me to `eval` or `rex` ( `replace` isn't possible). So far I can do it with `rex mode=sed` but I can't add it to a data model. Here is a run anywhere with my `sed` solution:
| makeresults | eval string="this,is,substring1,a,sentence,with,one"
| append [ | makeresults | eval string="substring2,this,has,substring1,all,three,substring3" ]
| append [ | makeresults | eval string="here,there,are,no,substrings" ]
| append [ | makeresults | eval string="this,only,substring3,substring1,has,two" ]
| table string
| rex mode=sed field=string "s/$/,/g"
| rex mode=sed field=string "s/substring1,//g"
| rex mode=sed field=string "s/substring2,//g"
| rex mode=sed field=string "s/substring3,//g"
| rex mode=sed field=string "s/.$//g"
The first and last `sed` commands are to add a comma to the end of the string to manage the case where a substring is positioned at the end, and to remove it again to clean up afterwards.
Are there any better solutions?
Thanks in advance, and best regards,
Andrew
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