ModulePyF-0.11.3.0Haskell2010

PyF.Internal.PythonSyntax

This module provides a parser for python format string mini language.

9 types
1 value

PackagePyF-0.11.3.0
Exports11
LanguageHaskell2010
LicenceBSD-3-Clause
SourcePythonSyntax.hs

valueparseGenericFormatString :: Parser [Item]

Parse a string, returns a list of raw string or replacement fields

Example2 expressions

>>> import Text.Megaparsec>>> parse parsePythonFormatString "" "hello {1+1:>10.2f}"Right [       Raw "hello ",       Replacement "1+1"       (       Just (FormatMode                      (Padding 10 (Just (Nothing,AnyAlign AlignRight)))                      (FixedF (Precision 2) NormalForm Minus)                       Nothing))]

datadata Item

A format string is composed of many chunks of raw string or replacement

Constructors

Raw String
A raw string
Replacement (HsExpr GhcPs, Exp) (Maybe FormatMode)
A replacement string, composed of an arbitrary Haskell expression followed by an optional formatter

datadata FormatMode

A Formatter, listing padding, format and and grouping char

Constructors

FormatMode Padding TypeFormat (Maybe Char)

datadata Padding

Padding, containing the padding width, the padding char and the alignement mode

Constructors

PaddingDefault
Padding (ExprOrValue Int) (Maybe (Maybe Char, AnyAlign))

datadata Precision

Floating point precision

Instances1Data

Data PrecisionDefined in PyF-0.11.3.0 · PyF.Internal.PythonSyntax

datadata TypeFormat

All formatting type

Constructors

DefaultF Precision SignMode
Default, depends on the infered type of the expression
BinaryF AlternateForm SignMode
Binary, such as `0b0121`
CharacterF
Character, will convert an integer to its character representation
DecimalF SignMode
Decimal, base 10 integer formatting
ExponentialF Precision AlternateForm SignMode
Exponential notation for floatting points
ExponentialCapsF Precision AlternateForm SignMode
Exponential notation with capitalised e
FixedF Precision AlternateForm SignMode
Fixed number of digits floating point
FixedCapsF Precision AlternateForm SignMode
Capitalized version of the previous
GeneralF Precision AlternateForm SignMode
General formatting: FixedF or ExponentialF depending on the number magnitude
GeneralCapsF Precision AlternateForm SignMode
Same as GeneralF but with upper case E and infinite / NaN
OctalF AlternateForm SignMode
Octal, such as 00245
StringF Precision
Simple string
HexF AlternateForm SignMode
Hexadecimal, such as 0xaf3e
HexCapsF AlternateForm SignMode
Hexadecimal with capitalized letters, such as 0XAF3E
PercentF Precision AlternateForm SignMode
Percent representation

Instances1Data

Data TypeFormatDefined in PyF-0.11.3.0 · PyF.Internal.PythonSyntax

datadata AlternateForm

If the formatter use its alternate form

AlternateForm NormalForm

Instances2Data, Show

Data AlternateFormDefined in PyF-0.11.3.0 · PyF.Internal.PythonSyntax
Show AlternateFormDefined in PyF-0.11.3.0 · PyF.Internal.PythonSyntax

patternpattern DefaultFormatMode :: FormatMode

Default formatting mode, no padding, default precision, no grouping, no sign handling

typetype Parser t = ParsecT String () (Reader ParsingContext) t

datadata ParsingContext

Constructors

ParsingContext
- delimiters :: Maybe (Char, Char)
- enabledExtensions :: [Extension]

Instances1Show

Show ParsingContextDefined in PyF-0.11.3.0 · PyF.Internal.PythonSyntax

datadata ExprOrValue t

Represents a value of type t or an Haskell expression supposed to represents that value

Constructors

Value t
HaskellExpr (HsExpr GhcPs, Exp)

Instances1Data

Data t => Data (ExprOrValue t)Defined in PyF-0.11.3.0 · PyF.Internal.PythonSyntax