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cli: with a repeated flag, the last takes precedence

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This is helpful eg for customising your reporting command aliases on the fly.
This commit is contained in:
Simon Michael 2014-12-04 12:41:47 -08:00
parent bd39e5df99
commit d352bbedd2
2 changed files with 9 additions and 5 deletions
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12
doc/manual.md
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@ -46,10 +46,14 @@ in your home directory. You can specify a different file with the `-f`
option or `LEDGER_FILE` environment variable, or standard input with `-f-`.
Options are similar across most commands, with some variations; use
`hledger COMMAND --help` for details. Most options must appear
somewhere after COMMAND, not before it. These input and help-related
options can appear anywhere: `-f`, `--rules-file`, `--alias`,
`--ignore-assertions`, `--help`, `--debug`, `--version`.
`hledger COMMAND --help` for details.
Most options must appear after COMMAND, not before it; but the
following general options can appear anywhere: `-f`, `--rules-file`,
`--alias`, `--ignore-assertions`, `--help`, `--debug`, `--version`.
If an option is repeated, the last one takes precedence. Eg `-p jan -p
feb` is equivalent to `-p feb`.
Arguments are also command-specific, but usually they form a
[query](#queries) which selects a subset of the journal, eg transactions

2
hledger-lib/Hledger/Data/RawOptions.hs
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@ -45,7 +45,7 @@ boolopt :: String -> RawOpts -> Bool
boolopt = inRawOpts
maybestringopt :: String -> RawOpts -> Maybe String
maybestringopt name = maybe Nothing (Just . stripquotes) . lookup name
maybestringopt name = maybe Nothing (Just . stripquotes) . lookup name . reverse
stringopt :: String -> RawOpts -> String
stringopt name = fromMaybe "" . maybestringopt name