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#ifndef __com_sun_star_i18n_XCollator_idl__
#define __com_sun_star_i18n_XCollator_idl__

#include <com/sun/star/uno/Exception.idl>
#include <com/sun/star/uno/XInterface.idl>
#include <com/sun/star/lang/Locale.idl>
//=============================================================================

module com { module sun { module star { module i18n {

/** provides locale-sensitive collation algorithms for string comparison.

*/
published interface XCollator: com::sun::star::uno::XInterface
{
    //-------------------------------------------------------------------------
    /** Compare 2 substrings in specific locale and algorithm.

        @param aStr1
            First string.

        @param nOff1
            Offset (from 0) of the first string.

        @param nLen1
            Length (from offset) of the first substring.

        @param aStr2
            Second string

        @param nOff2
            Offset (from 0) of the second string.

        @param nLen2
            Length (from offset) of the second substring.

        @returns
            1 if the first string is greater than the second string <br/>
            0 if the first string is equal to the second string <br/>
            -1 if the first string is less than the second string
    */
    long compareSubstring(  [in] string aStr1, [in] long nOff1, [in] long nLen1,
                            [in] string aStr2, [in] long nOff2, [in] long nLen2 );

    //-------------------------------------------------------------------------
    /** Compare 2 strings in specific locale and algorithm.

        @param aStr1
            First string.

        @param aStr2
            Second string.

        @returns
            1 if the first string is greater than the second string <br/>
            0 if the first string is equal to the second string <br/>
            -1 if the first string is less than the second string
    */
    long compareString( [in] string aStr1, [in] string aStr2 );

    //-------------------------------------------------------------------------
    /** Load the collator with default algorithm defined in
        locale data.

        @param aLocale
            The locale for this collator.

        @param nCollatorOptions
            A mask of <type>CollatorOptions</type>.

        @returns
            Returns 0 when loading was successful,
            otherwise throws runtime exception. In fact the return value
            should be ignored and the exception be caught instead.
    */
    long loadDefaultCollator(   [in] ::com::sun::star::lang::Locale aLocale,
                                [in] long nCollatorOptions );

    //-------------------------------------------------------------------------
    /** Load a particular collator algorithm for the locale.

        @param aAlgorithmName
            The algorithm to load.

        @param aLocale
            The locale for this collator.

        @param nCollatorOptions
            A mask of <type>CollatorOptions</type>.

        @returns
            Returns 0 when loading was successful,
            otherwise throws runtime exception.
    */
    long loadCollatorAlgorithm( [in] string aAlgorithmName,
                                [in] ::com::sun::star::lang::Locale aLocale,
                                [in] long nCollatorOptions );

    //-------------------------------------------------------------------------
    /** List all collator algorithms for a given locale.

        @param aLocale
            The locale for which to list algorithms.

        @returns
            A sequence of algorithm names.
    */
    sequence <string> listCollatorAlgorithms(
                                [in] ::com::sun::star::lang::Locale aLocale );

    //-------------------------------------------------------------------------
    /** Load a collator algorithm with options chosen by end user.

        @param aAlgorithmName
            The algorithm name to load.

        @param aLocale
            The locale for this collator.

        @param aCollatorOptions
            A sequence of end user collator options like those returned
            by <member>XCollator::listCollatorOptions()</member>.
    */
    void loadCollatorAlgorithmWithEndUserOption(
                                [in] string aAlgorithmName,
                                [in] ::com::sun::star::lang::Locale aLocale,
                                [in] sequence<long> aCollatorOptions );

    //-------------------------------------------------------------------------
    /** List all end user collator options for a given algorithm.

        @param aAlgorithmName
            The algorithm name for this collator.

        @returns
            An array of end user options available for the algorithm.
    */
    sequence <long> listCollatorOptions( [in] string aAlgorithmName );

};

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

}; }; }; };

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

#endif
