home *** CD-ROM | disk | FTP | other *** search
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- ;;; ;;
- ;;; Centre for Speech Technology Research ;;
- ;;; University of Edinburgh, UK ;;
- ;;; Copyright (c) 1996,1997 ;;
- ;;; All Rights Reserved. ;;
- ;;; ;;
- ;;; Permission is hereby granted, free of charge, to use and distribute ;;
- ;;; this software and its documentation without restriction, including ;;
- ;;; without limitation the rights to use, copy, modify, merge, publish, ;;
- ;;; distribute, sublicense, and/or sell copies of this work, and to ;;
- ;;; permit persons to whom this work is furnished to do so, subject to ;;
- ;;; the following conditions: ;;
- ;;; 1. The code must retain the above copyright notice, this list of ;;
- ;;; conditions and the following disclaimer. ;;
- ;;; 2. Any modifications must be clearly marked as such. ;;
- ;;; 3. Original authors' names are not deleted. ;;
- ;;; 4. The authors' names are not used to endorse or promote products ;;
- ;;; derived from this software without specific prior written ;;
- ;;; permission. ;;
- ;;; ;;
- ;;; THE UNIVERSITY OF EDINBURGH AND THE CONTRIBUTORS TO THIS WORK ;;
- ;;; DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ;;
- ;;; ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT ;;
- ;;; SHALL THE UNIVERSITY OF EDINBURGH NOR THE CONTRIBUTORS BE LIABLE ;;
- ;;; FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES ;;
- ;;; WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN ;;
- ;;; AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ;;
- ;;; ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF ;;
- ;;; THIS SOFTWARE. ;;
- ;;; ;;
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- ;;;
- ;;; Some functions for manipulating a SCFG parse tree
-
- (require_module 'parser)
-
- (define (scfg_simplify tree)
- "(scfg_brackets_only tree)
- Output only the bracketing and the bottom level pos and words."
- (cond
- ((not tree) nil)
- ((car (cdr (assoc 'pos (car (cdr (car tree))))))
- ;; terminal node
- (list
- (car (cdr (assoc 'pos (car (cdr (car tree))))))
- (car (car tree))))
- (t
- (cons
- (car (car tree))
- (mapcar scfg_simplify (cdr tree))))))
-
- (define (scfg_simplify_relation_tree trees)
- (mapcar scfg_simplify trees))
-
- (defvar scfg_eos_tree eou_tree
- "scfg_eos_tree
- In MultiProbParse this CART tree is used to define end of sentence
- within an utternace. It is applied to the token relation.
- By default it is set to eou_tree.")
-
- (provide 'scfg)
-