Documentation

There are three different quasiquoters in antlr-haskell, each with varying support for different G4 features. If you're looking for the user-facing quasiquoter then turn back now, because here-be-dragons. The user-facing quasiquoter can be found in G4 as g4.

• User-facing QuasiQuoter is in G4
• Spliced QuasiQuoter is here
• Boot parser is in srcLanguageANTLR4BootParser.hs.boot

The spliced quasiquoter, as packaged and shipped with distributions of antlr-haskell, allows for bootstrapping of the user-facing quasiquoter without requiring parsec as a dependency. The boot quasiquoter on the other hand is written entirely in parsec.

This function does the heavy-lifting of Haskell code generation, most notably generating non-terminal, terminal, and grammar data types as well as accompanying parsing functions.

Support for this is very experimental. This function allows you to splice in compile-time computed versions of the LR1 data structures so as to decrease the runtime of at-runtime parsing. See testg4G4.hs and testg4Main.hs in the antlr-haskell source for example usage of the glrParseFast function generated.