Capturing sub-accounts in Auto Postings

General
1

Could HLedger capture sub-accounts, grep style, for use in an auto posting?

My use case is emotional bank accounts. Say someone gives me a gift

2022-02-02 * Random Gift
  assets:checking  50 cur
  income:gift:person

Usually, this recording is enough. But as with loans, which I track religiously pending payback, I thought to create and track emotional bank accounts for gifts like these, pending pay forward.

With what I know in HLedger's auto postings, there's the %account directive in an auto posting which is a direct replacement of the matched bank account.

= income:gift
  (%account:emotional)  *1.5

This expands the above transaction into something like

2022-02-02 * Random Gift
  assets:checking  50 cur
  income:gift:person
  income:gift:person:emotional  75 cur

What I'd like is something like

2022-02-02 * Random Gift
  assets:checking  50 cur
  income:gift:person
  liabilities:emotional:person  75 cur

My hope was that an auto posting like this should work

= income:gift
  (liabilities:emotional:%(tag:giver))  *1.5

2022-02-02 * Random Gift
  ; giver: person
  assets:checking  50 cur
  income:gift:person

ā€¦but this doesn't work.

If HLedger does not support capturing subaccounts, is there any way I can use metadata from the transaction in my auto posting?

2

Currently, I think the best you could do is

= income:gift 
    (liabilities:emotional:%account)  *1.5

This seems to produce your desired structure at least. If needed you could then post-process the account name with a script, eg

sed -E 's/(liabilities:emotional:)income:gift:/\1/g' -i $LEDGER_FILE