Safe Haskell	None
Language	Haskell2010

Hledger.Data.StringFormat

Description

Parse format strings provided by --format, with awareness of hledger's report item fields. The formats are used by report-specific renderers like renderBalanceReportItem.

Synopsis

Documentation

parseStringFormat :: String -> Either String StringFormat Source #

Parse a string format specification, or return a parse error.

defaultStringFormatStyle :: [StringFormatComponent] -> StringFormat Source #

data StringFormat Source #

A format specification/template to use when rendering a report line item as text.

A format is a sequence of components; each is either a literal string, or a hledger report item field with specified width and justification whose value will be interpolated at render time.

A component's value may be a multi-line string (or a multi-commodity amount), in which case the final string will be either single-line or a top or bottom-aligned multi-line string depending on the StringFormat variant used.

Currently this is only used in the balance command's single-column mode, which provides a limited StringFormat renderer.

Constructors

OneLine [StringFormatComponent]	multi-line values will be rendered on one line, comma-separated
TopAligned [StringFormatComponent]	values will be top-aligned (and bottom-padded to the same height)
BottomAligned [StringFormatComponent]	values will be bottom-aligned (and top-padded)

Instances

Eq StringFormat Source #
Instance details Defined in Hledger.Data.StringFormat Methods (==) :: StringFormat -> StringFormat -> Bool # (/=) :: StringFormat -> StringFormat -> Bool #
Show StringFormat Source #
Instance details Defined in Hledger.Data.StringFormat Methods showsPrec :: Int -> StringFormat -> ShowS # show :: StringFormat -> String # showList :: [StringFormat] -> ShowS #

data StringFormatComponent Source #

Constructors

FormatLiteral String

Literal text to be rendered as-is

FormatField Bool (Maybe Int) (Maybe Int) ReportItemField

A data field to be formatted and interpolated. Parameters:

Left justify ? Right justified if false
Minimum width ? Will be space-padded if narrower than this
Maximum width ? Will be clipped if wider than this
Which of the standard hledger report item fields to interpolate

Instances

Eq StringFormatComponent Source #
Instance details Defined in Hledger.Data.StringFormat Methods (==) :: StringFormatComponent -> StringFormatComponent -> Bool # (/=) :: StringFormatComponent -> StringFormatComponent -> Bool #
Show StringFormatComponent Source #
Instance details Defined in Hledger.Data.StringFormat Methods showsPrec :: Int -> StringFormatComponent -> ShowS # show :: StringFormatComponent -> String # showList :: [StringFormatComponent] -> ShowS #

data ReportItemField Source #

An id identifying which report item field to interpolate. These are drawn from several hledger report types, so are not all applicable for a given report.

Constructors

AccountField	A posting or balance report item's account name
DefaultDateField	A posting or register or entry report item's date
DescriptionField	A posting or register or entry report item's description
TotalField	A balance or posting report item's balance or running total. Always rendered right-justified.
DepthSpacerField	A balance report item's indent level (which may be different from the account name depth). Rendered as this number of spaces, multiplied by the minimum width spec if any.
FieldNo Int	A report item's nth field. May be unimplemented.

Instances

Eq ReportItemField Source #
Instance details Defined in Hledger.Data.StringFormat Methods (==) :: ReportItemField -> ReportItemField -> Bool # (/=) :: ReportItemField -> ReportItemField -> Bool #
Show ReportItemField Source #
Instance details Defined in Hledger.Data.StringFormat Methods showsPrec :: Int -> ReportItemField -> ShowS # show :: ReportItemField -> String # showList :: [ReportItemField] -> ShowS #

tests_StringFormat :: Test () Source #