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cuichenli

opened on May 17, 2023

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The code I tried:

(
  $0f = true;
  $0f
)

as the following screenshots:

However, this can correctly compile and execute on https://try.jsonata.org/

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1. wnm3 commented on May 17, 2023

   

   wnm3

   on May 17, 2023

   Contributor

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   Our definition of variable and function ID requires starting with a letter or underscore:

   VAR_ID : '$' ID ;
   
   ID
   	: [\p{L}_] [\p{L}0-9_]*
   	| BACK_QUOTE ~[`]* BACK_QUOTE;
   

   There is a test case (token-conversion/case002.json) from jsonata.org that fails if I enable numbers for the first letter (you can experiment using "aa" as the first label and then finding $.aa, or using "a7" as the first label and then finding $.a7, but $.7a fails.

   {
       "expr": "$.7a",
       "data": {"7a":33, "a7":55, "7":88},
       "bindings": {},
       "code": "S0201"
   }
   

   I don't think we plan to fix this and question whether jsonata.org should tighten their checking.

   We use a different approach for parsing than jsonata.org so will have slight differences.

   Please close if you agree you can use different variable names starting with a letter.
2. cuichenli

   closed this as completedon May 19, 2023

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