| ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| ;;; ;; | |
| ;;; Centre for Speech Technology Research ;; | |
| ;;; University of Edinburgh, UK ;; | |
| ;;; Copyright (c) 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. ;; | |
| ;;; ;; | |
| ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| ;;; Author: Alan W Black | |
| ;;; Date: December 1997 | |
| ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| ;;; | |
| ;;; THIS IS EXPERIMENTAL AND DOES *NOT* WORK | |
| ;;; | |
| ;;; Koskenniemi-style context rewrite rules for English Morphographemics | |
| ;;; Basically splits words into their (potential) morphemes. | |
| ;;; | |
| ;;; Based (roughly) on the rules in "Computational Morphology" | |
| ;;; Ritchie et al. MIT Press 1992. | |
| ;;; | |
| ;;; This is not a Scheme file and can't be loaded and evaluated | |
| ;;; It is designed for use with the wfst tools in the speech tools | |
| ;;; e.g. wfst_build -type kk -o engmorph.wfst -detmin engmorph.scm | |
| ;;; | |
| (KKrules | |
| engmorph | |
| (Alphabets | |
| ;; Input Alphabet | |
| (a b c d e f g h i j k l m n o p q r s t u v w x y z #) | |
| ;; Output Alphabet | |
| (a b c d e f g h i j k l m n o p q r s t u v w x y z + #) | |
| ) | |
| (Sets | |
| (LET a b c d e f g h i j k l m n o p q r s t u v w x y z) | |
| ) | |
| (Rules | |
| ;; The basic rules | |
| ( a => nil --- nil) | |
| ( b => nil --- nil) | |
| ( c => nil --- nil) | |
| ( d => nil --- nil) | |
| ( e => nil --- nil) | |
| ( f => nil --- nil) | |
| ( g => nil --- nil) | |
| ( h => nil --- nil) | |
| ( i => nil --- nil) | |
| ( j => nil --- nil) | |
| ( k => nil --- nil) | |
| ( l => nil --- nil) | |
| ( m => nil --- nil) | |
| ( n => nil --- nil) | |
| ( o => nil --- nil) | |
| ( p => nil --- nil) | |
| ( q => nil --- nil) | |
| ( r => nil --- nil) | |
| ( s => nil --- nil) | |
| ( t => nil --- nil) | |
| ( u => nil --- nil) | |
| ( v => nil --- nil) | |
| ( w => nil --- nil) | |
| ( x => nil --- nil) | |
| ( y => nil --- nil) | |
| ( z => nil --- nil) | |
| ( # => nil --- nil) | |
| ; ( _epsilon_/+ => (or LET _epsilon_/e ) --- (LET)) | |
| ( _epsilon_/+ => (or LET _epsilon_/e) --- nil) | |
| ;; The rules that do interesting things | |
| ;; Epenthesis | |
| ;; churches -> church+s | |
| ;; boxes -> box+s | |
| (e/+ <=> (or (s h) (or s x z) (i/y) (c h)) | |
| --- | |
| (s)) | |
| ;; Gemination | |
| (b/+ <=> ( (or b c d f g h j k l m n p q r s t v w z) (or a e i o u y) b ) | |
| --- | |
| ((or a e i o u))) | |
| (d/+ <=> ((or b c d f g h j k l m n p q r s t v w z) (or a e i o u y) d ) | |
| --- | |
| ((or a e i o u))) | |
| (f/+ <=> ((or b c d f g h j k l m n p q r s t v w z) (or a e i o u y) f ) | |
| --- | |
| ((or a e i o u))) | |
| (g/+ <=> ((or b c d f g h j k l m n p q r s t v w z) (or a e i o u y) g ) | |
| --- | |
| ((or a e i o u))) | |
| (m/+ <=> ((or b c d f g h j k l m n p q r s t v w z) (or a e i o u y) m ) | |
| --- | |
| ((or a e i o u))) | |
| (p/+ <=> ((or b c d f g h j k l m n p q r s t v w z) (or a e i o u y) p ) | |
| --- | |
| ((or a e i o u))) | |
| (s/+ <=> ((or b c d f g h j k l m n p q r s t v w z) (or a e i o u y) s ) | |
| --- | |
| ((or a e i o u))) | |
| (t/+ <=> ((or b c d f g h j k l m n p q r s t v w z) (or a e i o u y) t ) | |
| --- | |
| ((or a e i o u))) | |
| (z/+ <=> ((or b c d f g h j k l m n p q r s t v w z) (or a e i o u y) z ) | |
| --- | |
| ((or a e i o u))) | |
| (n/+ <=> ((or b c d f g h j k l m n p q r s t v w z) (or a e i o u y) n ) | |
| --- | |
| ((or a e i o u))) | |
| (l/+ <=> ((or b c d f g h j k l m n p q r s t v w z) (or a e i o u y) l ) | |
| --- | |
| ((or a e i o u))) | |
| (r/+ <=> ((or b c d f g h j k l m n p q r s t v w z) (or a e i o u y) r ) | |
| --- | |
| ((or a e i o u))) | |
| ;; tries->try+s | |
| ( i/y <=> ((or b c d f g h j k l m n p q r s t v w x z)) | |
| --- | |
| ((or ( e/+ s ) | |
| ( _epsilon_/+ (or a d e f h i l m n o p s w y))))) | |
| ;; Elision | |
| ;; moved -> move+ed | |
| (_epsilon_/e <=> | |
| ((or a e i o u ) (or b c d f g j k l m n p q r s t v x z)) | |
| --- | |
| ( _epsilon_/+ (or a e i o u ))) | |
| ) | |
| ) | |