/*************************************************************************//*                                                                       *//*                  Language Technologies Institute                      *//*                     Carnegie Mellon University                        *//*                        Copyright (c) 1999                             *//*                        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.                                                      *//*                                                                       *//*  CARNEGIE MELLON UNIVERSITY 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 CARNEGIE MELLON UNIVERSITY 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 (awb@cs.cmu.edu)                    *//*               Date:  December 1999                                    *//*************************************************************************//*                                                                       *//*  feature-values lists                                                 *//*                                                                       *//*************************************************************************/#ifndef _CST_FEATURES_H__#define _CST_FEATURES_H__ #include "cst_alloc.h"#include "cst_val.h"#include "cst_string.h" typedef struct cst_featvalpair_struct {    const char *name;    cst_val *val;    struct cst_featvalpair_struct *next;} cst_featvalpair;#pragma incomplete cst_featvalpair typedef struct cst_features_struct {    struct cst_featvalpair_struct *head;    cst_alloc_context ctx;    cst_val *owned_strings; /* fnames that are owned by this struct */     /* Link to other cst_features that we search too */    const struct cst_features_struct *linked; } cst_features;#pragma incomplete cst_features /* Constructor functions */cst_features *new_features(void);cst_features *new_features_local(cst_alloc_context ctx);void delete_features(cst_features *f); /* Accessor functions */int feat_int(const cst_features *f, const char *name);float feat_float(const cst_features *f, const char *name);const char *feat_string(const cst_features *f, const char *name);const cst_val *feat_val(const cst_features *f, const char *name); int get_param_int(const cst_features *f, const char *name,int def);float get_param_float(const cst_features *f, const char *name, float def);const char *get_param_string(const cst_features *f, const char *name, const char *def);const cst_val *get_param_val(const cst_features *f, const char *name, cst_val *def); /* Setting functions */void feat_set_int(cst_features *f, const char *name, int v);void feat_set_float(cst_features *f, const char *name, float v);void feat_set_string(cst_features *f, const char *name, const char *v);void feat_set(cst_features *f, const char *name,const cst_val *v); int feat_remove(cst_features *f,const char *name);int feat_present(const cst_features *f,const char *name);int feat_length(const cst_features *f); /* Feature names are expected to be literals -- its *much* faster to do *//* look ups and less alloc/frees are necesssary.  Almosts always this is *//* fine, but when you are making up new fnames, you can get a copy of the *//* string that will be deleted when the cst_features is deleted */const char *feat_own_string(cst_features *f,const char *name); CST_VAL_USER_TYPE_DCLS(features,cst_features) int feat_copy_into(const cst_features *from,cst_features *to);/* Link FROM into TO so FROM's features will be searched after TO's features */int feat_link_into(const cst_features *from,cst_features *to);/* For debugging */int cst_feat_print(cst_file fd,const cst_features *f); #endif