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/* */
/* Centre for Speech Technology Research */
/* University of Edinburgh, UK */
/* Copyright (c) 1994,1995,1996 */
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/*************************************************************************/
/* Author : Paul Taylor */
/* Date : September 1994 */
/*-----------------------------------------------------------------------*/
/* EST_Option Class header file */
/* */
/*=======================================================================*/
#ifndef __EST_OPTION_H__
#define __EST_OPTION_H__
#include "EST_String.h"
#include "EST_TKVL.h"
#include "EST_rw_status.h"
/** Provide a high level interface for String String key value lists.
*/
class EST_Option: public EST_TKVL<EST_String, EST_String> {
public:
/// add prefix to every key
void add_prefix(EST_String prefix);
/// remove prefix from every key
void remove_prefix(EST_String prefix);
/** read keyval list from file. The file type is an ascii file
with each line representing one key value pair. The first entry in
the line defines the key, and the rest, which may contain
whitespaces, defins the value. Lines starting with the comment
character are ignored.
@return returns EST_read_status errors, @see */
EST_read_status load(const EST_String &filename, const EST_String &comment = ";");
/// add to end of list or overwrite. If rval is empty, do nothing
int override_val(const EST_String rkey, const EST_String rval);
/// add to end of list or overwrite. If rval is empty, do nothing
int override_fval(const EST_String rkey, const float rval);
/// add to end of list or overwrite. If rval is empty, do nothing
int override_ival(const EST_String rkey, const int rval);
/** return value of type int relating to key. By default,
an error occurs if the key is not present. Use m=0 if
to get a dummy value returned if key is not present */
int ival(const EST_String &rkey, int m=1) const;
/** return value of type float relating to key. By default,
an error occurs if the key is not present. Use m=0 if
to get a dummy value returned if key is not present */
double dval(const EST_String &rkey, int m=1) const;
/** return value of type float relating to key. By default,
an error occurs if the key is not present. Use m=0 if
to get a dummy value returned if key is not present */
float fval(const EST_String &rkey, int m=1) const;
/** return value of type String relating to key. By default,
an error occurs if the key is not present. Use m=0 if
to get a dummy value returned if key is not present */
const EST_String &sval(const EST_String &rkey, int m=1) const;
/** return value of type String relating to key. By default,
an error occurs if the key is not present. Use m=0 if
to get a dummy value returned if key is not present */
// const EST_String &val(const EST_String &rkey, int m=1) const
// { return sval(rkey,m); }
int add_iitem(const EST_String &rkey, const int &rval);
int add_fitem(const EST_String &rkey, const float &rval);
/// print options
friend ostream& operator << (ostream& s, const EST_Option &kv);
};
#endif // __EST_OPTION_H__
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