Translating linearization functions to Haskell: better treatment of special tokens

Common code has been lifted out from the generated Haskell modules to
an auxiliary module PGF.Haskell, which is currently included in the
regular PGF library, although it is independent of it and probably belongs
in a separate library.

The type Str used by linearization functions is now based on a token
type Tok, which is defined in PGF.Haskell.

PGF.Haskell.Tok is similar to the type GF.Data.Str.Tok, but it has
constructors for the special tokens BIND, SOFT_BIND and CAPIT, and there is
a function

	fromStr :: Str -> String

that computes the effects of these special tokens.

0 files changed, 0 insertions, 0 deletions