Does jmespath support "substring" function #77

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1. darrenmothersele commented on Nov 9, 2021

   

   darrenmothersele

   on Nov 9, 2021

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   Hi, sorry - I don't understand your description of what you are trying to do. Can you give an example (or two) of expected input and expected output?
2. jarrodek commented on Jun 4, 2022

   

   jarrodek

   on Jun 4, 2022

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   I have a similar issue. I would like to have a built-in function that performs a similar to String.prototype.substring() operation.

   For given input:

   {
     "foo": "bar"
   }

   I would like to run an expression like this:

   // in JS the substring has a signature of substring(indexStart, indexEnd)
   .search(..., 'foo | substring(0, 1)') // ba
   .search(..., 'foo | substring(0, 2)') // bar
   .search(..., 'foo | substring(0)') // bar
   .search(..., 'foo | substring(1)') // ar

   or by using slice expression

   .search(..., 'foo[0:1]') // ba
   .search(..., 'foo[0:2]') // bar
   .search(..., 'foo[0]') // bar
   .search(..., 'foo[1]') // ar
3. springcomp commented on Aug 9, 2022

   

   springcomp

   on Aug 9, 2022

   Last edited by springcomp

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   @zacard-orc we are standardizing a host of string manipulation functions in JMESPath Community. Substrings will be achieved using the existing slice-expression syntax.
4. jpmckinney commented on Mar 7, 2023

   

   jpmckinney

   on Mar 7, 2023

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   JEP: jmespath/jmespath.jep#5
5. springcomp commented on Mar 8, 2023

   

   springcomp

   on Mar 8, 2023

   Last edited by springcomp

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   JEP: jmespath/jmespath.jep#5

   Yep ! that’s exactly where I took this piece of feedback when brainstorming the list of features to include in the next version of JMESPath. Incidentally, @glenveegee has created an awesome port of JMESPath to TypeScript but this does not seem to be maintained any longer.

   So, while preparing a version for JMESPath Community, I am proposing all my changes upstream anyway. I hope to find an official maintainer then.
6. glenveegee commented on Mar 16, 2023

   

   glenveegee

   on Mar 16, 2023

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   @springcomp I'm updating it as we speak. Just been busy.