CSV: match group references get mixed up when multiple ifs match a record #2158
Description
When reading CSV and rules files and using REGEX expressions, if more than one if block matches the same record, the REGEX group index gets mixup.
Example:
- CSV file:
date,desc
2019-01-01,SUFFIX First
2019-02-01,SUFFIX Text 1 - Text 2
- Rules file:
skip 1
fields date,desc
separator ,
date-format %Y-%m-%d
description Test
if %desc SUFFIX (.*)
account1 account:\1
amount1 1
account2 equity
if %desc SUFFIX (.*) - (.*)
account1 account:\1:\2
amount1 1
account2 equity
Expected Result
2019-01-01 Test
account:First 1
equity
2019-02-01 Test
account:Text 1:Text 2 1
equity
Current Result
2019-01-01 Test
account:First 1
equity
2019-02-01 Test
account:Text 1 - Text 2:Text 1 1
equity
Note
If the rules file is modified with the following:
if %desc SUFFIX (.*) - (.*)
account1 account:\2:\3
amount1 1
account2 equity
(note the index for matching groups (\2 and \3), then the result works as expected.
More info
HLedger version: hledger 1.32.2, mac-aarch64
[Background: wish #2009, pr #2087.
Workaround: don't allow multiple ifs with capture groups to match the same CSV record. So if you use capture groups, make those regexps specific enough that at most one of them will match any given CSV record.]