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Add "week of year" expression #173

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merged 5 commits into from
Mar 20, 2024
Merged

Add "week of year" expression #173

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e79c2e1
add week of year
isovector Mar 19, 2024
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10 changes: 10 additions & 0 deletions src/Categorize.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -222,6 +222,7 @@ parseCondExpr = buildExpressionParser [
[ Prefix (reservedOp lang "!" >> return checkNot) ],
[ Prefix (reserved lang "day of week" >> return evalDayOfWeek)
, Prefix (reserved lang "day of month" >> return evalDayOfMonth)
, Prefix (reserved lang "week of year" >> return evalWeekOfYear)
, Prefix (reserved lang "month" >> return evalMonth)
, Prefix (reserved lang "year" >> return evalYear)
, Prefix (reserved lang "format" >> return formatDate) ],
Expand Down Expand Up @@ -354,6 +355,15 @@ evalDayOfMonth cp = Left $ printf
"Cannot apply day of month to an expression of type %s, only to $date."
(cpType cp)

-- Day of month is an integer in [1..31].
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evalWeekOfYear :: CondPrim -> Erring CondPrim
evalWeekOfYear (CondDate df) = Right $ CondInteger $ \ctx ->
let tz = zonedTimeZone (cCurrentTime ctx) in
(toInteger . snd3 . toWeekDate . localDay . utcToLocalTime tz) `fmap` df ctx
evalWeekOfYear cp = Left $ printf
"Cannot apply week of year to an expression of type %s, only to $date."
(cpType cp)

-- Month is an integer in [1..12].
evalMonth :: CondPrim -> Erring CondPrim
evalMonth (CondDate df) = Right $ CondInteger $ \ctx ->
Expand Down