Qlik BNF Terminal Definitions

jjfargus_psd — Mon, 15 May 2023 13:29:27 GMT

Hey all,

I am working on a python based parser of the Qlik Script Language in Lark. I was able to reconstruct the BNF from the JSON representation, however some of the Terminal definitions are just there as placeholders and not with their values. I imagine the Terminal definitions are loaded at runtime, and that's why they're not in the BaseBNF. I was wondering if anybody knew what Qlik considers the definitions of the following terminals:

UNKNOWN

SCANNER_TOKEN_MATCH_ANYTHING

LITERAL_NUMBER

IDENTIFIER

LITERAL_STRING

LITERAL_FIELD

I have a fairly good idea of what these could be, but wanted my parser to be as faithful as possible.

For what it's worth, there appear to be a few mistakes in the BaseBNF representation, with some of the other terminals not having the appropriate flags for isBNFLiteral present in their object, but they're relatively easy to spot.

Thanks so much!

topic Qlik BNF Terminal Definitions in Integration, Extension & APIs

Qlik BNF Terminal Definitions