Replace AlignCommodity with bean-format

AlignCommodity replicates the functionality of the bean-format command
that is shipped with beancount itself. Therefore, we can fully replace
it by having vim invoke bean-format through formatprg.

Even though bean-format's output might differ from AlignCommodity in
significant ways, we feel that using one unified tool is superior to
having several (possibly incompatible) custom implementations. That way,
if bean-format is improved upon in the future, all downstream consumers
profit. For regular usage, however, this change should be transparent.

Note that while bean-format supports a few different ways of formatting
the ledger, we have opted to hard-code one specific setting. This will
match the default behaviour of fava, aligning currencies in column 61.

Managing the arguments passed to bean-format dynamically is considered
out of scope, especially given the fact that the user need only override
formatprg to get a custom setting.

This commit will also drop the g:beancount_separator_col variable and
the tests for AlignCommodity. Ideally, testing will now done upstream
for bean-format itself.

1 files changed, 0 insertions, 2 deletions

diff --git a/README.md b/README.md
index 4c323f9..b2d00a8 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,4 @@ copy all of the files into the appropriate places inside your '.vim' directory.
 
 * Use `:make` to run `bean-check` and load errors in the quickfix window.
 
-* The `AlignCommodity` command lines up all your decimal points.
-
 For full details, see [doc/beancount.txt](doc/beancount.txt).