slaesvuo/hledger
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

;doc: journal: clarify commodity directive does not affect parsing

Browse Source 
[ci skip]
This commit is contained in:
Simon Michael 2019-05-25 05:29:49 -07:00
parent 34a0ad00b1
commit bba9c32607
1 changed files with 10 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
hledger-lib/hledger_journal.m4.md
View File

@ -793,7 +793,9 @@ Y2010 ; change default year to 2010
### Declaring commodities
The `commodity` directive declares commodities which may be used in the journal (though currently we do not enforce this).
The `commodity` directive declares commodities which may be used in the journal,
and their display format.
It may be written on a single line, like this:
```journal
@ -819,12 +821,18 @@ commodity INR
format INR 9,99,99,999.00
```
Commodity directives have a second purpose: they define the standard display format for amounts in the commodity.
Declaring commodites may be useful as documentation,
but currently we do not enforce that only declared commodities may be used.
This directive is mainly useful for customising the preferred display format for a commodity.
Normally the display format is inferred from journal entries, but this can be unpredictable;
declaring it with a commodity directive overrides this and removes ambiguity.
Towards this end, amounts in commodity directives must always be written with a decimal point
(a period or comma, followed by 0 or more decimal digits).
Commodity directives do not affect how amounts are parsed;
the parser will read multiple formats.
### Default commodity
The `D` directive sets a default commodity (and display format), to be used for amounts without a commodity symbol (ie, plain numbers).