By the given file path, reads the file and returns ParsedExtensions, if parsing succeeds.

By the given file source content, returns ParsedExtensions, if parsing succeeds.

By the given file path and file source content, returns ParsedExtensions, if parsing succeeds.

This function takes a path to a Haskell source file. The path is only used for error message. Pass empty string or use parseSource, if you don't have a path to a Haskell module.

The main parser of ParsedExtension.

It parses language pragmas or comments until end of file or the first line with the functionimportmodule name.

Single LANGUAGE pragma parser.

 {-# LANGUAGE XXX
  , YYY ,
  ZZZ
 #-}

Parses all known and unknown OnOffExtensions or SafeHaskellExtensions.

Parser for standard language pragma keywords: {-# LANGUAGE XXX #-}

Parser for GHC options pragma keywords: {-# OPTIONS_GHC YYY #-}

Parser for GHC pragmas with a given pragma word.

Haskell comment parser. Supports both single-line comments:

 -- I am a single comment
 

and multi-line comments:

 {- I
 AM
 MULTILINE
 -}
 

CPP syntax parser.

 #if __GLASGOW_HASKELL__ < 810
 -- Could be more Language pragmas that should be parsed
 #endif