New 'ledger-indent-region' function

[jdek]

• ledger-mode.el (ledger-mode): Set indent-region-function.
• ledger-post.el (ledger-indent-region): New function that indents the region by calling ledger-indent-line for each line.

Closes #197

[jdek]

@purcell hi, possible to get a quick review on this? Would be quite nice to have this fixed in master.

[purcell]

Probably @enderw88 would be better placed to comment on whether this is a desirable fix — I'm not sure about the history of indentation in ledger-mode

[jdek]

Maybe @bcc32 could take a look?

[purcell]

As far as I can tell, the default indent-region-function – indent-region-line-by-line – calls indent-line-function on each line. So what's the difference here, assuming that indent-line-function is set to ledger-indent-line?

[purcell]

ie. what you've implemented feels the same as simply not setting indent-region-function in the first place.

[jdek]

Good catch, I wasn't aware that indent-region worked like that by default. Just unsetting indent-region-function seems to work for me.

Test input:

    2017-06-26 Commonplace Coffee
         Expenses:Restaurants:Coffee                 3.00   ; Grande
    Assets:Cash:Wallet                         -3.00

2017-06-26 Commonplace Coffee
       Expenses:Restaurants:Coffee                 3.00   ; Grande
    Assets:Cash:Wallet                         -3.00

          2017-06-26 Commonplace Coffee
      Assets:Cash:Wallet
        Expenses:Restaurants:Coffee                 3.00

Current master:

     2017-06-26 Commonplace Coffee
    Expenses:Restaurants:Coffee                 3.00   ; Grande
    Assets:Cash:Wallet                         -3.00

2017-06-26 Commonplace Coffee
    Expenses:Restaurants:Coffee                 3.00   ; Grande
    Assets:Cash:Wallet                         -3.00

    2017-06-26 Commonplace Coffee
    Assets:Cash:Wallet
    Expenses:Restaurants:Coffee                 3.00

With (setq-local indent-region-function nil):

 2017-06-26 Commonplace Coffee
    Expenses:Restaurants:Coffee                 3.00   ; Grande
    Assets:Cash:Wallet                         -3.00

2017-06-26 Commonplace Coffee
    Expenses:Restaurants:Coffee                 3.00   ; Grande
    Assets:Cash:Wallet                         -3.00

2017-06-26 Commonplace Coffee
    Assets:Cash:Wallet
    Expenses:Restaurants:Coffee                 3.00

ledger-post-align-postings is broken somehow I guess?

[purcell]

ledger-post-align-postings is broken somehow I guess?

Hmmm... do we have any tests for that, perhaps? You could consider pushing a failing test to show what you'd expect.