xref: /trunk/main/offapi/com/sun/star/util/SearchFlags.idl (revision b63233d8)

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#ifndef __com_sun_star_lang_SearchFlags_idl__
#define __com_sun_star_lang_SearchFlags_idl__


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

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

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

/// Flags for search methods
published constants SearchFlags
{
    /**
        @deprecated The constant ALL_IGNORE_CASE is never supported - use
                    <const scope="com::sun::star::i18n">TransliterationModules::IGNORE_CASE</const>
                    with
                    <member>SearchOptions::transliterateFlags</member>
                    instead.

        @see <type scope="com::sun::star::i18n">TransliterationModules</type>
    */
    const long  ALL_IGNORE_CASE     = 0x00000001;

    /** Flag for normal (Boyer-Moore) search / Search for word only. */
    const long  NORM_WORD_ONLY      = 0x00000010;

    /** Flag for "regular expression" search / Interpret as extended
        regular expression.

        @deprecated The flag is currently not supported by OOo.
    */
    const long  REG_EXTENDED        = 0x00000100;

    /** Flag for "regular expression" search / No register information
        or backreferences, i.e., avoid sub expressions. Return only
        true/false if matched or not.

        @deprecated The flag is currently not supported by OOo.
    */
    const long  REG_NOSUB           = 0x00000200;

    /** Flag for "regular expression" search / Special new line
        treatment.

        @deprecated The flag is currently not supported by OOo.

        <p> A NEWLINE character in string will not be matched by a
        period outside bracket expression or by any form of a non
        matching list. </p>

        <p> A circumflex (^) in pattern when used to specify expression
        anchoring will match the zero length string immediately after a
        newline in string, regardless of the setting of
        REG_NOT_BEGINOFLINE. </p>

        <p> A dollar-sign ($) in pattern when used to specify expression
        anchoring, will match zero-length string immediately before a
        new line in string, regardless of the setting of
        REG_NOT_ENDOFLINE. </p>
    */
    const long  REG_NEWLINE         = 0x00000400;

    /** The first character in the string is not the beginning of the
        line therefore ^ will not match with first character of the
        string.
    */
    const long  REG_NOT_BEGINOFLINE = 0x00000800;

    /** The last character in the string is not the end of the line
        therefore $ will not match with last character of the string.
    */
    const long  REG_NOT_ENDOFLINE   = 0x00001000;

    /** Flag for "Weighted Levenshtein Distance" search / Relaxed
        checking of limit, split weigh pools.

        <p> If not specified (<b>strict</b>), the search is sucessful if
        the WLD is within a calculated limit where each insertion,
        deletion and replacement adds a weight to a common pool of
        weights. This is the mathematically correct WLD. </p>

        <p> From a user's point of view the strict WLD is an
        exclusive-OR of the arguments given, for example if allowed
        insertions=2 and allowed replacements=2, the search fails if 2
        characters had been inserted and an additional operation would
        be needed to match. Depending on the weights it may also fail if
        1 character was inserted and 1 character replaced and an
        additional operation would be needed to match. The strict
        algorithm may match less than expected from a first glance of
        the specified arguments, but does not return false positives. </p>

        <p> If specified (<b>relaxed</b>), the search is also successful
        if the combined pool for insertions and deletions is below a
        doubled calculated limit and replacements are treated
        differently. Additionally, swapped characters are counted as one
        replacement. </p>

        <p> From a user's point of view the relaxed WLD is an
        inclusive-OR of the arguments given, for example if allowed
        insertions=2 and allowed replacements=2, the search succeeds if
        2 characters had been inserted and an additional replacement is
        needed to match. The relaxed algorithm may return false
        positives, but meets user expectation better. </p>
    */
    const long  LEV_RELAXED     = 0x00010000;
};

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

#endif