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/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2008 by Sun Microsystems, Inc.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * $RCSfile: XStringSubstitution.idl,v $
 * $Revision: 1.8 $
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

#ifndef __com_sun_star_util_XStringSubstitution_idl__ 
#define __com_sun_star_util_XStringSubstitution_idl__ 

#ifndef __com_sun_star_uno_XInterface_idl__ 
#include <com/sun/star/uno/XInterface.idl> 
#endif 

#ifndef __com_sun_star_container_NoSuchElementException_idl__
#include <com/sun/star/container/NoSuchElementException.idl>
#endif

//============================================================================= 

 module com {  module sun {  module star {  module  util { 

//============================================================================= 
/** A common interface for substituting string variables with
    other strings.
    
    <p>
    The substitution algorithm and the syntax for a string variable are 
    not part of this interface definition.	Please look at the documentation 
    of the implementation that must	specify these parameters.
    </p>

    @since OOo 1.1.2
*/
published interface XStringSubstitution : com::sun::star::uno::XInterface
{
    //-------------------------------------------------------------------------
    /** Exchanges variables inside a given text with a substitution text
        defined for the variables.
        
        <p>
        The method iterates through it's internal variables list to match the
        variables in the given string. A match replaces the variable with the
        string defined for this variable. If no variable can be found in the string
        it will be returned unchanged. The behavior if a variable is found in
        the string but it is unknown for the implementation depends on the parameter 
        bSubstRequired.
        </p>

        @param aText
            A string containing variables that should be substituted.

        @param bSubstRequired
            Specifies if a successfull substitution is required. The 
            function throws a <type scope="com::sun::star::container">NoSuchElementException</type>
            if it finds a variable that is unknown. In this case it is possible 
            that the returned string would not be what the caller expected!
    
        @return
            Returns a string based on <var>aText</var> where all variables were 
            exchanged with their value defined at calling time.
    */
    string substituteVariables( [in] string aText, [in] boolean bSubstRequired ) 
        raises( com::sun::star::container::NoSuchElementException ); 

    //-------------------------------------------------------------------------
    /** Tries to replace parts of aText with variables that represents
        these sub strings.
      
        <p>
        The method iterates through it's internal variable list and tries to match
        parts of the given string Tries to replace parts of <var>aText</var> with 
        variables that represents these sub strings.If more than one variable 
        matches the one with the longest matching sub string will be chosen.
        </p>
        
        @param aText
            A string where known substrings should be replaced by variables.
            
        @return
            Returns the resubstituted string with variables for all parts
            that could be replaced. The unchanged argument will be returned
            if nothing can be resubtituted.
    */
    
    string reSubstituteVariables( [in] string aText );

    //-------------------------------------------------------------------------
    /** Returns the current value of a variable.
      
        <p>
        The method iterates through it's internal variable list and tries to 
        find the given variable. If the variable is unkown a 
        <type scope="com::sun::star::container">NoSuchElementException</type>
        is thrown.
        </p>

        @param variable
            The name of a variable.
            
        @return
            Returns a string that represents the variable. If the
            variable is unknown a <type scope="com::sun::star::container">NoSuchElementException</type>
            is thrown.
    */
    string getSubstituteVariableValue( [in] string variable ) 
        raises (::com::sun::star::container::NoSuchElementException );
};

//============================================================================= 
 
}; }; }; };  

#endif