Safe Haskell	Safe
Language	Haskell2010

Config

Description

This module parses files using the syntax demonstrated below. The full grammar is available in the Happy source file.

-- Line comments until newline
layout:
  based:
    configuration:
      {} -- empty section

    sections:
     "glguy"

    booleans   : yes
    complicated: no

    decimal    : -1234
    hexadecimal: 0x1234
    octal      : 0o1234
    binary     : 0b1010

lists:
   * 1
   * [ "inline", "lists" ]
   * * "nestable"
     * "layout"
     * "lists"
   * 3

unicode : "standard Haskell format strings (1 ≤ 2)\x2228(2 ≤ 3)"

Synopsis

Documentation

data Section Source

A single section of a Value

Constructors

Section
Fields sectionName :: Text sectionValue :: Value

Instances

Eq Section
Data Section
Read Section
Show Section
Generic Section
Typeable * Section
type Rep Section

data Value Source

Sum type of the values supported by this language.

Constructors

Sections [Section]
Number Int Integer	base number
Text Text
Bool Bool
List [Value]

Instances

Eq Value
Data Value
Read Value
Show Value
Generic Value
Typeable * Value
type Rep Value

parse Source

Arguments

:: ByteString	UTF-8 encoded source
-> Either (Int, Int) Value	Either (Line,Column) Result

Parse a configuration value and return the result on the right, or the position of an error on the left.

pretty :: Value -> Doc Source

Pretty-print a Value as shown in the example. Sections will nest complex values underneat with indentation and simple values will be rendered on the same line as their section.