The files in this directory contain GENERATED signatures.
To regenerate, do the following:

1. Parse and implode the Stratego grammar:

   > sglr -2 -p ~/projects/gb/grammars/sdf.2.1/sdf.cons.tbl \
          -i ~/projects/gb/grammars/stratego.0/Stratego.def \
          | implode-asfix > Stratego.sdf.af

2. Generated and imploded Stratego signature for Stratego:

   > ../sdf2stratego/sdf2sig -i Stratego.sdf.af -o Stratego-sig.r.af

3. Pretty-print the imploded signature to text:

   > ast2box -i Stratego-sig.r.af \
       ~/projects/gb/grammars/stratego.0/Stratego.pp \
       | box2text > Stratego-sig.r

4. Unpack the signature into separate Stratego modules.

   > unpack Stratego-sig.r r

Note: change ~/projects/gb above into the proper GB prefix.
