Hi,You can use reader syntax[0]. Take a look at this SQL reader syntax[1,2] I wrote some time ago for inspiration (it should require very little changing).
[0] https://api.call-cc.org/5/doc/chicken/read-syntax/set-read-syntax%21[1] https://git.sr.ht/~siiky/save-for-later/tree/c7297083127ac1543bf6013e27259b35d07236ee/item/sql-reader-syntax/sql-reader-syntax.scm [2] https://git.sr.ht/~siiky/save-for-later/tree/c7297083127ac1543bf6013e27259b35d07236ee/item/sql-reader-syntax/example.scm
siiky