doc: document balance assignments (#438)

This commit is contained in:
Simon Michael 2016-12-10 07:56:57 -08:00
parent fe58ef7946
commit 47ca1965b2
4 changed files with 296 additions and 162 deletions

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@ -327,7 +327,7 @@ You can usually find an equivalent journal entry using real postings,
which is more correct and provides better error checking.
.SS Balance Assertions
.PP
hledger supports ledger\-style balance assertions in journal files.
hledger supports Ledger\-style balance assertions in journal files.
These look like \f[C]=EXPECTEDBALANCE\f[] following a posting\[aq]s
amount.
Eg in this example we assert the expected dollar balance in accounts a
@ -423,6 +423,44 @@ Balance assertions are checked against all postings, both real and
virtual.
They are not affected by the \f[C]\-\-real/\-R\f[] flag or
\f[C]real:\f[] query.
.SS Balance Assignments
.PP
Ledger\-style balance assignments are also supported.
These are like balance assertions, but with no posting amount on the
left side of the equals sign; instead it is calculated automatically so
as to satisfy the assertion.
This can be a convenience during data entry, eg when setting opening
balances:
.IP
.nf
\f[C]
;\ starting\ a\ new\ journal,\ set\ asset\ account\ balances\
2016/1/1\ opening\ balances
\ \ assets:checking\ \ \ \ \ \ \ \ \ \ \ \ =\ $409.32
\ \ assets:savings\ \ \ \ \ \ \ \ \ \ \ \ \ =\ $735.24
\ \ assets:cash\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ =\ $42
\ \ equity:opening\ balances
\f[]
.fi
.PP
or when adjusting a balance to reality:
.IP
.nf
\f[C]
;\ no\ cash\ left;\ update\ balance,\ record\ any\ untracked\ spending\ as\ a\ generic\ expense
2016/1/15
\ \ assets:cash\ \ \ \ =\ $0
\ \ expenses:misc
\f[]
.fi
.PP
The calculated amount depends on the account\[aq]s balance in the
commodity at that point (which depends on the previously\-dated postings
of the commodity to that account since the last balance assertion or
assignment).
Note that using balance assignments makes your journal a little less
explicit; to know the exact amount posted, you have to run hledger or do
the calculations yourself, instead of just reading it.
.SS Prices
.SS Transaction prices
.PP

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@ -70,6 +70,7 @@ File: hledger_journal.5.info, Node: FILE FORMAT, Next: EDITOR SUPPORT, Prev:
* Amounts::
* Virtual Postings::
* Balance Assertions::
* Balance Assignments::
* Prices::
* Comments::
* Tags::
@ -331,12 +332,12 @@ can usually find an equivalent journal entry using real postings, which
is more correct and provides better error checking.

File: hledger_journal.5.info, Node: Balance Assertions, Next: Prices, Prev: Virtual Postings, Up: FILE FORMAT
File: hledger_journal.5.info, Node: Balance Assertions, Next: Balance Assignments, Prev: Virtual Postings, Up: FILE FORMAT
1.6 Balance Assertions
======================
hledger supports ledger-style balance assertions in journal files. These
hledger supports Ledger-style balance assertions in journal files. These
look like `=EXPECTEDBALANCE' following a posting's amount. Eg in this
example we assert the expected dollar balance in accounts a and b after
each posting:
@ -442,9 +443,44 @@ Balance assertions are checked against all postings, both real and
virtual. They are not affected by the `--real/-R' flag or `real:' query.

File: hledger_journal.5.info, Node: Prices, Next: Comments, Prev: Balance Assertions, Up: FILE FORMAT
File: hledger_journal.5.info, Node: Balance Assignments, Next: Prices, Prev: Balance Assertions, Up: FILE FORMAT
1.7 Prices
1.7 Balance Assignments
=======================
Ledger-style balance assignments are also supported. These are like
balance assertions, but with no posting amount on the left side of the
equals sign; instead it is calculated automatically so as to satisfy the
assertion. This can be a convenience during data entry, eg when setting
opening balances:
; starting a new journal, set asset account balances
2016/1/1 opening balances
assets:checking = $409.32
assets:savings = $735.24
assets:cash = $42
equity:opening balances
or when adjusting a balance to reality:
; no cash left; update balance, record any untracked spending as a generic expense
2016/1/15
assets:cash = $0
expenses:misc
The calculated amount depends on the account's balance in the
commodity at that point (which depends on the previously-dated postings
of the commodity to that account since the last balance assertion or
assignment). Note that using balance assignments makes your journal a
little less explicit; to know the exact amount posted, you have to run
hledger or do the calculations yourself, instead of just reading it.

File: hledger_journal.5.info, Node: Prices, Next: Comments, Prev: Balance Assignments, Up: FILE FORMAT
1.8 Prices
==========
* Menu:
@ -455,7 +491,7 @@ File: hledger_journal.5.info, Node: Prices, Next: Comments, Prev: Balance Ass

File: hledger_journal.5.info, Node: Transaction prices, Next: Market prices, Up: Prices
1.7.1 Transaction prices
1.8.1 Transaction prices
------------------------
When recording a transaction, you can also record an amount's price in
@ -509,7 +545,7 @@ conversion rate of purchases made in a foreign currency.

File: hledger_journal.5.info, Node: Market prices, Prev: Transaction prices, Up: Prices
1.7.2 Market prices
1.8.2 Market prices
-------------------
Market prices are not tied to a particular transaction; they represent
@ -540,7 +576,7 @@ P 2010/1/1 € $1.40

File: hledger_journal.5.info, Node: Comments, Next: Tags, Prev: Prices, Up: FILE FORMAT
1.8 Comments
1.9 Comments
============
Lines in the journal beginning with a semicolon (`;') or hash (`#') or
@ -581,8 +617,8 @@ end comment

File: hledger_journal.5.info, Node: Tags, Next: Directives, Prev: Comments, Up: FILE FORMAT
1.9 Tags
========
1.10 Tags
=========
A _tag_ is a word followed by a full colon inside a transaction or
posting comment. You can write multiple tags, comma separated. Eg: `; a
@ -609,7 +645,7 @@ are simple strings.

File: hledger_journal.5.info, Node: Directives, Prev: Tags, Up: FILE FORMAT
1.10 Directives
1.11 Directives
===============
* Menu:
@ -626,7 +662,7 @@ File: hledger_journal.5.info, Node: Directives, Prev: Tags, Up: FILE FORMAT

File: hledger_journal.5.info, Node: Account aliases, Next: account directive, Up: Directives
1.10.1 Account aliases
1.11.1 Account aliases
----------------------
You can define aliases which rewrite your account names (after reading
@ -655,7 +691,7 @@ be useful for:

File: hledger_journal.5.info, Node: Basic aliases, Next: Regex aliases, Up: Account aliases
1.10.1.1 Basic aliases
1.11.1.1 Basic aliases
......................
To set an account alias, use the `alias' directive in your journal
@ -680,7 +716,7 @@ alias checking = assets:bank:wells fargo:checking

File: hledger_journal.5.info, Node: Regex aliases, Next: Multiple aliases, Prev: Basic aliases, Up: Account aliases
1.10.1.2 Regex aliases
1.11.1.2 Regex aliases
......................
There is also a more powerful variant that uses a regular expression,
@ -706,7 +742,7 @@ alias /^(.+):bank:([^:]+)(.*)/ = \1:\2 \3

File: hledger_journal.5.info, Node: Multiple aliases, Next: end aliases, Prev: Regex aliases, Up: Account aliases
1.10.1.3 Multiple aliases
1.11.1.3 Multiple aliases
.........................
You can define as many aliases as you like using directives or
@ -723,7 +759,7 @@ order:

File: hledger_journal.5.info, Node: end aliases, Prev: Multiple aliases, Up: Account aliases
1.10.1.4 end aliases
1.11.1.4 end aliases
....................
You can clear (forget) all currently defined aliases with the `end
@ -735,7 +771,7 @@ end aliases

File: hledger_journal.5.info, Node: account directive, Next: apply account directive, Prev: Account aliases, Up: Directives
1.10.2 account directive
1.11.2 account directive
------------------------
The `account' directive predefines account names, as in Ledger and
@ -757,7 +793,7 @@ account expenses:food

File: hledger_journal.5.info, Node: apply account directive, Next: Multi-line comments, Prev: account directive, Up: Directives
1.10.3 apply account directive
1.11.3 apply account directive
------------------------------
You can specify a parent account which will be prepended to all accounts
@ -796,7 +832,7 @@ supported.

File: hledger_journal.5.info, Node: Multi-line comments, Next: commodity directive, Prev: apply account directive, Up: Directives
1.10.4 Multi-line comments
1.11.4 Multi-line comments
--------------------------
A line containing just `comment' starts a multi-line comment, and a
@ -805,7 +841,7 @@ line containing just `end comment' ends it. See comments.

File: hledger_journal.5.info, Node: commodity directive, Next: Default commodity, Prev: Multi-line comments, Up: Directives
1.10.5 commodity directive
1.11.5 commodity directive
--------------------------
The `commodity' directive predefines commodities (currently this is
@ -840,7 +876,7 @@ commodity INR

File: hledger_journal.5.info, Node: Default commodity, Next: Default year, Prev: commodity directive, Up: Directives
1.10.6 Default commodity
1.11.6 Default commodity
------------------------
The D directive sets a default commodity (and display format), to be
@ -861,7 +897,7 @@ D $1,000.00

File: hledger_journal.5.info, Node: Default year, Next: Including other files, Prev: Default commodity, Up: Directives
1.10.7 Default year
1.11.7 Default year
-------------------
You can set a default year to be used for subsequent dates which don't
@ -888,7 +924,7 @@ Y2010 ; change default year to 2010

File: hledger_journal.5.info, Node: Including other files, Prev: Default year, Up: Directives
1.10.8 Including other files
1.11.8 Including other files
----------------------------
You can pull in the content of additional journal files by writing an
@ -929,69 +965,71 @@ Tag Table:
Node: Top94
Node: FILE FORMAT2284
Ref: #file-format2410
Node: Transactions2569
Ref: #transactions2689
Node: Dates3632
Ref: #dates3760
Node: Simple dates3825
Ref: #simple-dates3953
Node: Secondary dates4317
Ref: #secondary-dates4473
Node: Posting dates6033
Ref: #posting-dates6164
Node: Account names7535
Ref: #account-names7674
Node: Amounts8159
Ref: #amounts8297
Node: Virtual Postings10396
Ref: #virtual-postings10557
Node: Balance Assertions11777
Ref: #balance-assertions11941
Node: Assertions and ordering12763
Ref: #assertions-and-ordering12948
Node: Assertions and commodities13979
Ref: #assertions-and-commodities14205
Node: Assertions and subaccounts14897
Ref: #assertions-and-subaccounts15131
Node: Assertions and virtual postings15653
Ref: #assertions-and-virtual-postings15862
Node: Prices16003
Ref: #prices16135
Node: Transaction prices16186
Ref: #transaction-prices16331
Node: Market prices17938
Ref: #market-prices18073
Node: Comments18961
Ref: #comments19083
Node: Tags20195
Ref: #tags20313
Node: Directives21236
Ref: #directives21351
Node: Account aliases21544
Ref: #account-aliases21690
Node: Basic aliases22292
Ref: #basic-aliases22437
Node: Regex aliases23125
Ref: #regex-aliases23295
Node: Multiple aliases24065
Ref: #multiple-aliases24239
Node: end aliases24735
Ref: #end-aliases24877
Node: account directive24979
Ref: #account-directive25161
Node: apply account directive25457
Ref: #apply-account-directive25655
Node: Multi-line comments26315
Ref: #multi-line-comments26507
Node: commodity directive26634
Ref: #commodity-directive26820
Node: Default commodity27693
Ref: #default-commodity27868
Node: Default year28404
Ref: #default-year28571
Node: Including other files28994
Ref: #including-other-files29153
Node: EDITOR SUPPORT29549
Ref: #editor-support29669
Node: Transactions2593
Ref: #transactions2713
Node: Dates3656
Ref: #dates3784
Node: Simple dates3849
Ref: #simple-dates3977
Node: Secondary dates4341
Ref: #secondary-dates4497
Node: Posting dates6057
Ref: #posting-dates6188
Node: Account names7559
Ref: #account-names7698
Node: Amounts8183
Ref: #amounts8321
Node: Virtual Postings10420
Ref: #virtual-postings10581
Node: Balance Assertions11801
Ref: #balance-assertions11978
Node: Assertions and ordering12800
Ref: #assertions-and-ordering12985
Node: Assertions and commodities14016
Ref: #assertions-and-commodities14242
Node: Assertions and subaccounts14934
Ref: #assertions-and-subaccounts15168
Node: Assertions and virtual postings15690
Ref: #assertions-and-virtual-postings15899
Node: Balance Assignments16040
Ref: #balance-assignments16209
Node: Prices17327
Ref: #prices17460
Node: Transaction prices17511
Ref: #transaction-prices17656
Node: Market prices19263
Ref: #market-prices19398
Node: Comments20286
Ref: #comments20408
Node: Tags21520
Ref: #tags21640
Node: Directives22563
Ref: #directives22678
Node: Account aliases22871
Ref: #account-aliases23017
Node: Basic aliases23619
Ref: #basic-aliases23764
Node: Regex aliases24452
Ref: #regex-aliases24622
Node: Multiple aliases25392
Ref: #multiple-aliases25566
Node: end aliases26062
Ref: #end-aliases26204
Node: account directive26306
Ref: #account-directive26488
Node: apply account directive26784
Ref: #apply-account-directive26982
Node: Multi-line comments27642
Ref: #multi-line-comments27834
Node: commodity directive27961
Ref: #commodity-directive28147
Node: Default commodity29020
Ref: #default-commodity29195
Node: Default year29731
Ref: #default-year29898
Node: Including other files30321
Ref: #including-other-files30480
Node: EDITOR SUPPORT30876
Ref: #editor-support30996

End Tag Table

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@ -251,8 +251,8 @@ Virtual postings have some legitimate uses, but those are few. You can usually f
## Balance Assertions
hledger supports ledger-style
[balance assertions](http://ledger-cli.org/3.0/doc/ledger3.html#Balance-assertions)
hledger supports
[Ledger-style balance assertions](http://ledger-cli.org/3.0/doc/ledger3.html#Balance-assertions)
in journal files.
These look like `=EXPECTEDBALANCE` following a posting's amount. Eg in
this example we assert the expected dollar balance in accounts a and b after
@ -339,6 +339,36 @@ Balance assertions are checked against all postings, both real and
flag or `real:` query.
## Balance Assignments
[Ledger-style balance assignments](http://ledger-cli.org/3.0/doc/ledger3.html#Balance-assignments) are also supported.
These are like [balance assertions](#balance-assertions), but with no posting amount on the left side of the equals sign;
instead it is calculated automatically so as to satisfy the assertion.
This can be a convenience during data entry, eg when setting opening balances:
```journal
; starting a new journal, set asset account balances
2016/1/1 opening balances
assets:checking = $409.32
assets:savings = $735.24
assets:cash = $42
equity:opening balances
```
or when adjusting a balance to reality:
```journal
; no cash left; update balance, record any untracked spending as a generic expense
2016/1/15
assets:cash = $0
expenses:misc
```
The calculated amount depends on the account's balance in the commodity at that point
(which depends on the previously-dated postings of the commodity to that account
since the last balance assertion or assignment).
Note that using balance assignments makes your journal a little less explicit;
to know the exact amount posted, you have to run hledger or do the calculations yourself,
instead of just reading it.
## Prices
### Transaction prices

View File

@ -253,7 +253,7 @@ FILE FORMAT
more correct and provides better error checking.
Balance Assertions
hledger supports ledger-style balance assertions in journal files.
hledger supports Ledger-style balance assertions in journal files.
These look like =EXPECTEDBALANCE following a posting's amount. Eg in
this example we assert the expected dollar balance in accounts a and b
after each posting:
@ -329,6 +329,34 @@ FILE FORMAT
Balance assertions are checked against all postings, both real and vir-
tual. They are not affected by the --real/-R flag or real: query.
Balance Assignments
Ledger-style balance assignments are also supported. These are like
balance assertions, but with no posting amount on the left side of the
equals sign; instead it is calculated automatically so as to satisfy
the assertion. This can be a convenience during data entry, eg when
setting opening balances:
; starting a new journal, set asset account balances
2016/1/1 opening balances
assets:checking = $409.32
assets:savings = $735.24
assets:cash = $42
equity:opening balances
or when adjusting a balance to reality:
; no cash left; update balance, record any untracked spending as a generic expense
2016/1/15
assets:cash = $0
expenses:misc
The calculated amount depends on the account's balance in the commodity
at that point (which depends on the previously-dated postings of the
commodity to that account since the last balance assertion or assign-
ment). Note that using balance assignments makes your journal a little
less explicit; to know the exact amount posted, you have to run hledger
or do the calculations yourself, instead of just reading it.
Prices
Transaction prices
When recording a transaction, you can also record an amount's price in