New issue 143: full-line comments not allowed within transactions
https://bitbucket.org/blais/beancount/issues/143/full-line-comments-not-allowed-within
Stefano Zacchiroli:
According to my reading of the syntax reference, comment should be allowed
everywhere in a beancount file, no matter if they are in-line comments or
entire-line comments.
According to bean-check this is not the case though. While the following passes
bean-check just fine:
```
#!beancount
2014-04-23 * "Flight to Berlin" #berlin-trip-2014
foo: "bar"
Expenses:Flights -1230.27
USD
foo: "baz" ; in-line comment 1
Liabilities:CreditCard ; in-line comment 2
foo: "qux"
```
the following (note the addition of "; full-line comment 3") does not:
```
#!beancount
2014-04-23 * "Flight to Berlin" #berlin-trip-2014
foo: "bar"
Expenses:Flights -1230.27
USD
; full-line comment 3
foo: "baz" ; comment 1
Liabilities:CreditCard ; comment 2
foo: "qux"
```
with bean-check failing like this:
```
#!
/tmp/foo.beancount:8: syntax error, unexpected KEY
/tmp/foo.beancount:9: syntax error, unexpected ACCOUNT
/tmp/foo.beancount:10: syntax error, unexpected KEY
/tmp/foo.beancount:4: Transaction does not balance: (-1230.27 USD)
2014-04-23 * "Flight to Berlin" #berlin-trip-2014
foo: "bar"
Expenses:Flights -1230.27 USD
```
According to some additional experiments I've made:
* no placement of full-line comments within a transaction works
* full-line comments to work between transactions though
* in-line comments work everywhere within transactions
* removing the leading whitespace (i.e., moving the ";" to column 0) does not
fix the issue
I've only briefly looked at the yacc grammer, and it is not immediately clear
why this does not work, as "posting_or_kv_list" entries are made of
"key_value_line", which are properly terminated by "eol", which in turn can
contain comments. I haven't debugged it any further though.
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