parsers-0.12.3: Parsing combinators

Copyright | (c) Edward Kmett 2011-2012
License | BSD3
Maintainer | ekmett@gmail.com
Stability | provisional
Portability | non-portable
Safe Haskell | Trustworthy
Language | Haskell2010

Text.Parser.Token.Style

Contents

- Comment and white space styles
  - Lenses
  - Common Comment Styles
- Identifier Styles
- Operator Styles

Description

A toolbox for specifying comment and identifier styles

This must be imported directly as it is not re-exported elsewhere

Synopsis

- data CommentStyle = CommentStyle {
  - _commentStart :: String
  - _commentEnd :: String
  - _commentLine :: String
  - _commentNesting :: Bool
  }
- commentStart :: Functor f => (String -> f String) -> CommentStyle -> f CommentStyle
- commentEnd :: Functor f => (String -> f String) -> CommentStyle -> f CommentStyle
- commentLine :: Functor f => (String -> f String) -> CommentStyle -> f CommentStyle
- commentNesting :: Functor f => (Bool -> f Bool) -> CommentStyle -> f CommentStyle
- emptyCommentStyle :: CommentStyle
- javaCommentStyle :: CommentStyle
- scalaCommentStyle :: CommentStyle
- haskellCommentStyle :: CommentStyle
- buildSomeSpaceParser :: CharParsing m => m () -> CommentStyle -> m ()
- emptyIdents :: TokenParsing m => IdentifierStyle m
- haskellIdents :: TokenParsing m => IdentifierStyle m
- haskell98Idents :: TokenParsing m => IdentifierStyle m
- emptyOps :: TokenParsing m => IdentifierStyle m
- haskellOps :: TokenParsing m => IdentifierStyle m
- haskell98Ops :: TokenParsing m => IdentifierStyle m

# Comment and white space styles

data CommentStyle Source

How to deal with comments.

Constructors

CommentStyle |

Fields

_commentStart :: String

  String that starts a multiline comment

_commentEnd :: String

  String that ends a multiline comment

_commentLine :: String

  String that starts a single line comment

_commentNesting :: Bool

  Can we nest multiline comments?

Instances

Eq CommentStyle Source |
Data CommentStyle Source |
Ord CommentStyle Source |
Read CommentStyle Source |
Show CommentStyle Source |

## Lenses

commentStart :: Functor f => (String -> f String) -> CommentStyle -> f CommentStyle Source

This is a lens that can edit the string that starts a multiline comment.

    commentStart :: Lens' CommentStyle String

commentEnd :: Functor f => (String -> f String) -> CommentStyle -> f CommentStyle Source

This is a lens that can edit the string that ends a multiline comment.

    commentEnd :: Lens' CommentStyle String

commentLine :: Functor f => (String -> f String) -> CommentStyle -> f CommentStyle Source

This is a lens that can edit the string that starts a single line comment.

    commentLine :: Lens' CommentStyle String

commentNesting :: Functor f => (Bool -> f Bool) -> CommentStyle -> f CommentStyle Source

This is a lens that can edit whether we can nest multiline comments.

    commentNesting :: Lens' CommentStyle Bool

## Common Comment Styles

emptyCommentStyle :: CommentStyle Source

No comments at all

javaCommentStyle :: CommentStyle Source

Use java-style comments

scalaCommentStyle :: CommentStyle Source

Use scala-style comments

haskellCommentStyle :: CommentStyle Source

Use haskell-style comments

buildSomeSpaceParser :: CharParsing m => m () -> CommentStyle -> m () Source

Use this to easily build the definition of whiteSpace for your MonadParser given a comment style and an underlying someWhiteSpace parser

# Identifier Styles

emptyIdents :: TokenParsing m => IdentifierStyle m Source

A simple identifier style based on haskell with no reserve words

haskellIdents :: TokenParsing m => IdentifierStyle m Source

A simple identifier style based on haskell with the reserved words from Haskell 98 and some common extensions.

haskell98Idents :: TokenParsing m => IdentifierStyle m Source

A simple identifier style based on haskell with only the reserved words from Haskell 98.

# Operator Styles

emptyOps :: TokenParsing m => IdentifierStyle m Source

A simple operator style based on haskell with no reserved operators

haskellOps :: TokenParsing m => IdentifierStyle m Source

A simple operator style based on haskell with the operators from Haskell 98.

haskell98Ops :: TokenParsing m => IdentifierStyle m Source

A simple operator style based on haskell with the operators from Haskell 98.