164 lines
6.2 KiB
C
164 lines
6.2 KiB
C
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/*************************************************************************/
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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) 1995,1996 */
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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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/* Author : Paul Taylor */
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/* Date : May 1995 (redone May 1998) */
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/*-----------------------------------------------------------------------*/
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/* EST_Utterance Class header file */
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/* */
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/*=======================================================================*/
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#ifndef __Utterance_H__
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#define __Utterance_H__
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#include "EST_String.h"
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#include "EST_TList.h"
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#include "ling_class/EST_Relation.h"
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#include "ling_class/EST_Item.h"
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#include "EST_Features.h"
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/** A class that contains <link linkend="est-item">EST_Items</link>
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and <link linkend="est-relation">EST_Relations</link> between them.
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Used for holding interrelated linguistic structures.
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*/
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class EST_Utterance{
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private:
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void copy(const EST_Utterance &u);
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int highest_id;
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public:
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/**@name Constructor and initialisation Functions */
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//@{
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/// default constructor
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EST_Utterance();
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EST_Utterance(const EST_Utterance &u) { copy(u); }
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~EST_Utterance() {clear();}
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//@}
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///
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/**@name Utility Functions */
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//@{
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/// initialise utterance
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void init();
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/// remove everything in utterance
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void clear();
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/// clear the contents of the relations only
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void clear_relations();
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/// set the next id to be <parameter>n</parameter>
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void set_highest_id(int n) {highest_id=n;}
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/// return the id of the next item
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int next_id();
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//@}
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/**@name File i/o */
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//@{
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/** load an utterance from an ascii file
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*/
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EST_read_status load(const EST_String &filename);
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/** load an utterance from a already opened token stream
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*/
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EST_read_status load(EST_TokenStream &ts);
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/** save an utterance to an ascii file
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*/
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EST_write_status save(const EST_String &filename,
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const EST_String &type="est_ascii") const;
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/** save an utterance to an ostream
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*/
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EST_write_status save(ostream &outf,const EST_String &type) const;
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//@}
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EST_Utterance &operator=(const EST_Utterance &s);
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friend ostream& operator << (ostream &s, const EST_Utterance &u);
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EST_Relation * operator() (const EST_String &name)
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{ return relation(name);}
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/** Utterance access
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*/
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//@{
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/// Utterance level features
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EST_Features f;
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/// Evaluate all feature functions in utterance
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void evaluate_all_features();
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/// The list of named relations
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EST_Features relations;
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/// number of relations in this utterance
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int num_relations() const { return relations.length(); }
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/** returns true if utterance contains named relations.
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{\bf name} can be either a single string or a bracketed list
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of strings e.g. "(Word Phone Syl)". */
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bool relation_present(const EST_String name) const;
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/** returns true if utterance contains all the relations
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named in the list {\bf name}. */
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bool relation_present(EST_StrList &names) const;
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/// get relation by name
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EST_Relation *relation(const char *name,int err_on_not_found=1) const;
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/// return EST_Item whose id is <parameter>n</parameter>.
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EST_Item *id(const EST_String &n) const;
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/// create a new relation called <parameter>n</parameter>.
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EST_Relation *create_relation(const EST_String &relname);
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/// remove the relation called <parameter>n</parameter>.
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void remove_relation(const EST_String &relname);
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void sub_utterance(EST_Item *i);
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};
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void utt_2_flat_repr( const EST_Utterance &utt,
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EST_String &flat_repr );
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int utterance_merge(EST_Utterance &utt,
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EST_Utterance &sub_utt,
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EST_Item *utt_root,
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EST_Item *sub_root);
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int utterance_merge(EST_Utterance &utt,
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EST_Utterance &extra,
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EST_String feature);
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void sub_utterance(EST_Utterance &sub,EST_Item *i);
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#endif
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