[LFG] XLE RULES formalism question

[Damir Cavar]

Hi everybody,

I have a question with respect to the XLE grammar RULES section. We found in some grammar the following definitions in the RULES section:

ADVERBIAL = { PP: ! $ (^ ADJUNCT); 
          | AdvP: ! $ (^ ADJUNCT); 
          | DP: ! $ (^ ADJUNCT) 
                (! PSEM) =c temp ;
          | CP: ! $ (^ ADJUNCT) 
                (! ADJUNCT $ GLOSS TRANS) = if }
          (INTERNALPUNCT).

   PREPOBJ = { PP: (^ OBJ) = ! 
          | DP: (^ OBJ) = ! }.


Is the “=“ in these rules equivalent to “—>” or is this something else. What is the semantics, if these two are different? In the documentation I have not seen the use of “=“. Is there some more detailed or extended documentation that goes into more such details?


Thanks a lot!

DC




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