Data.Text.Format.Heavy.Parse.VarFormat

Documentation

pGenericFormat :: Parsec Text st GenericFormat

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

parseGenericFormat :: Text -> Either ParseError GenericFormat

Parse generic variable format.

Syntax is:

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

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).
• conversion - text conversion symbol. Supported are: u - convert to upper case, l - convert to lower case, t - convert to title case (capitalize all words).

pBoolFormat :: Parsec Text st BoolFormat

Parsec parser for Bool format

parseBoolFormat :: Text -> Either ParseError BoolFormat

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)

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).