This other type of plugin should operate on the AST, with round trip capability. Beancount doesn't _really_ have a proper AST. Text transformations such as what you propose should be done as preprocessing, not in Beancount.
On Sat, Mar 7, 2026 at 2:56 PM Tim Sweña <[email protected]> wrote: > Hello folks, > > I am just getting started with Beancount and was excited about: > > > Any line that does not begin as a valid Beancount syntax directive (e.g. > with a date) is silently ignored. > > from the language syntax guide, but that turned out to be out-dated ( > https://github.com/beancount/beancount/issues/388). I got kinda attached > to the idea of a "literate programming" ledger, so I thought of a proposal > that I think could fit well into the current plugin architecture: > > I/O plugins. These intercept and transform the raw file input/output (I/O) > stream before Beancount's standard parser sees the content. > > For easier commenting, I wrote the up in more detail at: > > https://docs.google.com/document/d/16conmm3cKC4raXnFW1UiiSmMGIhs0qO2oLK2siHUBOI/edit?usp=sharing > I've also started prototyping these ideas at > https://github.com/tswast/beancount/pull/1. > > I'd love to hear your thoughts. > > --Tim > > -- > You received this message because you are subscribed to the Google Groups > "Beancount" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion visit > https://groups.google.com/d/msgid/beancount/CACv%3DJ46E05uk5a1rdCZyCbrMosFUpgwRCpvEBULHnvFYrHa69Q%40mail.gmail.com > <https://groups.google.com/d/msgid/beancount/CACv%3DJ46E05uk5a1rdCZyCbrMosFUpgwRCpvEBULHnvFYrHa69Q%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "Beancount" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/beancount/CAK21%2BhM8WZKrVTCdwA%3Dme3zbsYo1SAk_xiBOMxT%2Bbh%2BX602y%3DQ%40mail.gmail.com.
