All files are in the directory /mnt/linc/extra/xtag/work/gprigent/transfer/.

The file ld-transfer.lisp load all files for the transfer module:

• utilities.lisp

  general utilities, string processing functions.

• parser-interface.lisp

  interface with parser and grammar (package :n6parser).

• feature-interface.lisp

  interface with feature manager (package :feature).

• transfer-struct.lisp

  general structures for transfer. Defines different types of derivation nodes, different types of elementary trees, the structures for transfer.

• generic.lisp

  utilities functions, independent of the type of object.

• trace.lisp

  trace and debug functions, warning control.

• transfer-manager.lisp

  the transfer manager and access to the transfer databases during transfer. Relative source/target functions. Functions to select the transfer manager.

• transfer-lexicon.lisp

  acquisition of the transfer data base : finite state automatons to read the data files, and functions to record the data in the transfer manager.

• transfer.lisp

  defines the main function for transfer application, the different phases of transfer and the general algorithm.

• feature-deriv.lisp

  functions for feature propagation in derivation trees (source and target).

• feature-transfer.lisp

  feature transfer between head nodes. Access to the feature transfer database.

• generation.lisp

  generation from derivation lattice to derivation trees, checks well formedness (structural, features and morphology).

• morpho-gener.lisp

  functions for morphological generation.

• sentences.lisp

  Sentence generation, derivation trees and sentences pretty printing.

Some auxiliary files, not loaded by ld-transfer.lisp:

• loop-transfer.lisp

  a simple command loop for testing the transfer module.

Other files are prefixed with new-. These files are not used in the current state of the implementation but could be used by extensions (in general, it is a partial implementation of some features).

Test Data Files

For testing, I use two grammars, one for French, completely defined in directory francais/, and loaded by file francais/francais2.gram, and one for English, loaded by the file english/english2.gram, which uses different parts of an english demo grammar.

Transfer

The transfer data files are in the directory transfer-data/, and are loaded by the file def-franglish.lisp:

• lexicon.family : family transfer file.
• lexicon.feat : feature transfer file.
• lexicon.global : global transfer file.
• lexicon.lex : lexical entries transfer file.
• lexicon.tree : tree transfer file.

The last file contains examples of sentences that I have tried, their results with the current transfer data, and some comments when something goes wrong:

examples.txt