Arithmetic

[Dan Sladden]

Hi

Why does this do what I expect:

2020/01/01 Works

    Assets:Cash    (£10*(3 -1))

    Equity

but this (without the space before the minus sign) doesn't:

2020/01/01 Doesn't work

    Assets:Cash    (£10*(3-1))

    Equity

Thanks

Dan

[Martin Michlmayr]

* Dan Sladden <dan.s...@gmail.com> [2021-02-07 05:03]:

> but this (without the space before the minus sign) doesn't:
>
> 2020/01/01 Doesn't work
> Assets:Cash (£10*(3-1))
> Equity

Sounds like a parsing issue. What's particularly bad is that the
transaction is silenty ignored.

Please file an issue at https://github.com/ledger/ledger/issues/

--
Martin Michlmayr
https://www.cyrius.com/

[Richard Lawrence]

Whoa, strange. I think this is probably a bug. I can confirm that the
first transaction puts £20 in Assets:Cash, but the second does not,
on ledger 3.1.2. (I realize this version is a bit old; I'm on Debian
stable.)

Dan, what version are you running? Can anyone test on a more recent version?

It's also strange that ledger does not throw an error or complain or
anything about the second transaction. It's as if it's simply blind to
it.

--
Best,
Richard

[Martin Michlmayr]

* Richard Lawrence <wyl...@gmail.com> [2021-02-08 09:39]:

> Dan, what version are you running? Can anyone test on a more recent version?

It's a confirmed bug.

> It's also strange that ledger does not throw an error or complain or
> anything about the second transaction. It's as if it's simply blind to
> it.

The subtraction is incorrectly calculated as 0, so there's no error,
but since the transaction is 0 it's not shown. You can add --empty
to see it.

https://github.com/ledger/ledger/issues/2001
which as it turns out was reported back in 2019:
https://github.com/ledger/ledger/issues/1809

If someone wants to submit a fix, that'd be great!