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