text-format-heavy-0.1.4.0: Full-weight string formatting library, analog of Python's string.format

Safe HaskellNone
LanguageHaskell2010

Data.Text.Format.Heavy.Parse.VarFormat

Synopsis

Documentation

pGenericFormat :: Parsec Text st GenericFormat Source #

Parsec parser for generic (Python-like) variable format.

parseGenericFormat :: Text -> Either ParseError GenericFormat Source #

Parse generic variable format.

Syntax is:

[[fill]align][sign][#][width][.precision][radix]

where:

  • fill - padding character (space by default)
  • align - alignment indicator (<, >, or ^)
  • sign - when to show number's sign (+, -, or space)
  • # - if specified, then for hexadecimal numbers the leading 0x will be added
  • width - minimum length of the field
  • precision - number of decimal places after point, for floatting-point numbers
  • radix - h or x for hexadecimal, d for decimal (default).

pBoolFormat :: Parsec Text st BoolFormat Source #

Parsec parser for Bool format

parseBoolFormat :: Text -> Either ParseError BoolFormat Source #

Parse Bool format.

Syntax is:

TRUE:FALSE

Colon can be replaced with comma or semicolon.

For example, valid format specifications are true:false (the default one), True:False, yes:no, and so on.

parseMaybeFormat :: Text -> Maybe (Text, Text) Source #

Try to parse format for Maybe x type. The syntax is:

someformat|nothing

where someformat is format for the x type, and nothing is the string to be substituted for Nothing value.

Returns Nothing, if format does not contain |. Otherwise, returns Just (someformat, nothing).