libreoffice/tools/source/string/tstring.cxx

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 *
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
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#include <string.h>

#include "osl/diagnose.h"
#include <osl/interlck.h>
#include <rtl/alloc.h>
#include <rtl/memory.h>
#include <rtl/tencinfo.h>

#include <tools/string.hxx>
#include <impstrg.hxx>

#include <tools/debug.hxx>

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

DBG_NAME( ByteString )
DBG_NAMEEX( UniString )

// -----------------------------------------------------------------------

#define STRCODE         sal_Char
#define STRCODEU        unsigned char
#define STRING          ByteString
#define STRINGDATA      ByteStringData
#define DBGCHECKSTRING  DbgCheckByteString
#define STRING_TYPE     rtl_String
#define STRING_ACQUIRE  rtl_string_acquire
#define STRING_RELEASE  rtl_string_release
#define STRING_NEW      rtl_string_new


// -----------------------------------------------------------------------

xub_StrLen ImplStringLen( const sal_Char* pStr )
{
    const sal_Char* pTempStr = pStr;
    while( *pTempStr )
        ++pTempStr;
    return (xub_StrLen)(pTempStr-pStr);
}

// -----------------------------------------------------------------------

xub_StrLen ImplStringLen( const sal_Unicode* pStr )
{
    const sal_Unicode* pTempStr = pStr;
    while( *pTempStr )
        ++pTempStr;
    return (xub_StrLen)(pTempStr-pStr);
}

// -----------------------------------------------------------------------

#include <strimp.cxx>
#include <strcvt.cxx>

xub_StrLen STRING::SearchAndReplace( const STRCODE* pCharStr, const STRING& rRepStr,
                                     xub_StrLen nIndex )
{
    DBG_CHKTHIS( STRING, DBGCHECKSTRING );
    DBG_CHKOBJ( &rRepStr, STRING, DBGCHECKSTRING );

    xub_StrLen nSPos = Search( pCharStr, nIndex );
    if ( nSPos != STRING_NOTFOUND )
        Replace( nSPos, ImplStringLen( pCharStr ), rRepStr );

    return nSPos;
}

static sal_Int32 ImplStringICompare( const STRCODE* pStr1, const STRCODE* pStr2,
                                     xub_StrLen nCount )
{
    sal_Int32   nRet = 0;
    STRCODE     c1;
    STRCODE     c2;
    do
    {
        if ( !nCount )
            break;

        // Ist das Zeichen zwischen 'A' und 'Z' dann umwandeln
        c1 = *pStr1;
        c2 = *pStr2;
        if ( (c1 >= 65) && (c1 <= 90) )
            c1 += 32;
        if ( (c2 >= 65) && (c2 <= 90) )
            c2 += 32;
        nRet = ((sal_Int32)((STRCODEU)c1))-((sal_Int32)((STRCODEU)c2));
        if ( nRet != 0 )
            break;

        ++pStr1,
        ++pStr2,
        --nCount;
    }
    while ( c2 );

    return nRet;
}

StringCompare STRING::CompareIgnoreCaseToAscii( const STRCODE* pCharStr,
                                                xub_StrLen nLen ) const
{
    DBG_CHKTHIS( STRING, DBGCHECKSTRING );

    // String vergleichen
    sal_Int32 nCompare = ImplStringICompare( mpData->maStr, pCharStr, nLen );

    // Rueckgabewert anpassen
    if ( nCompare == 0 )
        return COMPARE_EQUAL;
    else if ( nCompare < 0 )
        return COMPARE_LESS;
    else
        return COMPARE_GREATER;
}

StringCompare STRING::CompareTo( const STRCODE* pCharStr, xub_StrLen nLen ) const
{
    DBG_CHKTHIS( STRING, DBGCHECKSTRING );

    // String vergleichen
    sal_Int32 nCompare = ImplStringCompare( mpData->maStr, pCharStr, nLen );

    // Rueckgabewert anpassen
    if ( nCompare == 0 )
        return COMPARE_EQUAL;
    else if ( nCompare < 0 )
        return COMPARE_LESS;
    else
        return COMPARE_GREATER;
}

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

static sal_Int32 ImplStringCompare( const STRCODE* pStr1, const STRCODE* pStr2 )
{
    sal_Int32 nRet;
    while ( ((nRet = ((sal_Int32)((STRCODEU)*pStr1))-((sal_Int32)((STRCODEU)*pStr2))) == 0) &&
            *pStr2 )
    {
        ++pStr1,
        ++pStr2;
    }

    return nRet;
}

sal_Bool STRING::Equals( const STRCODE* pCharStr ) const
{
    DBG_CHKTHIS( STRING, DBGCHECKSTRING );

    return (ImplStringCompare( mpData->maStr, pCharStr ) == 0);
}

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