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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* 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
*
* 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.
*
************************************************************************/
// System - Includes -----------------------------------------------------
#include "stringutil.hxx"
#include "rtl/ustrbuf.hxx"
#include "rtl/math.hxx"
using ::rtl::OUString;
using ::rtl::OUStringBuffer;
ScSetStringParam::ScSetStringParam() :
mpNumFormatter(NULL),
mbDetectNumberFormat(true),
mbSetTextCellFormat(false)
{
}
// ============================================================================-
bool ScStringUtil::parseSimpleNumber(
const OUString& rStr, sal_Unicode dsep, sal_Unicode gsep, double& rVal)
{
if (gsep == 0x00A0)
// unicode space to ascii space
gsep = 0x0020;
OUStringBuffer aBuf;
sal_Int32 i = 0;
sal_Int32 n = rStr.getLength();
const sal_Unicode* p = rStr.getStr();
const sal_Unicode* pLast = p + (n-1);
sal_Int32 nPosDSep = -1, nPosGSep = -1;
sal_uInt32 nDigitCount = 0;
// Skip preceding spaces.
for (i = 0; i < n; ++i, ++p)
{
sal_Unicode c = *p;
if (c != 0x0020 && c != 0x00A0)
// first non-space character. Exit.
break;
}
if (i == n)
// the whole string is space. Fail.
return false;
n -= i; // Subtract the length of the preceding spaces.
// Determine the last non-space character.
for (; p != pLast; --pLast, --n)
{
sal_Unicode c = *pLast;
if (c != 0x0020 && c != 0x00A0)
// Non space character. Exit.
break;
}
for (i = 0; i < n; ++i, ++p)
{
sal_Unicode c = *p;
if (c == 0x00A0)
// unicode space to ascii space
c = 0x0020;
if (sal_Unicode('0') <= c && c <= sal_Unicode('9'))
{
// this is a digit.
aBuf.append(c);
++nDigitCount;
}
else if (c == dsep)
{
// this is a decimal separator.
if (nPosDSep >= 0)
// a second decimal separator -> not a valid number.
return false;
if (nPosGSep >= 0 && i - nPosGSep != 4)
// the number has a group separator and the decimal sep is not
// positioned correctly.
return false;
nPosDSep = i;
nPosGSep = -1;
aBuf.append(c);
nDigitCount = 0;
}
else if (c == gsep)
{
// this is a group (thousand) separator.
if (i == 0)
// not allowed as the first character.
return false;
if (nPosDSep >= 0)
// not allowed after the decimal separator.
return false;
if (nPosGSep >= 0 && nDigitCount != 3)
// must be exactly 3 digits since the last group separator.
return false;
nPosGSep = i;
nDigitCount = 0;
}
else if (c == sal_Unicode('-') || c == sal_Unicode('+'))
{
// A sign must be the first character if it's given.
if (i == 0)
aBuf.append(c);
else
return false;
}
else
return false;
}
// finished parsing the number.
if (nPosGSep >= 0 && nDigitCount != 3)
// must be exactly 3 digits since the last group separator.
return false;
rtl_math_ConversionStatus eStatus = rtl_math_ConversionStatus_Ok;
sal_Int32 nParseEnd = 0;
rVal = ::rtl::math::stringToDouble(aBuf.makeStringAndClear(), dsep, gsep, &eStatus, &nParseEnd);
if (eStatus != rtl_math_ConversionStatus_Ok)
return false;
return true;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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