ca1027e7d3
Change-Id: If32767647d3fba22a8e4a2b10fc57f47efca01d2 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/133270 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
526 lines
17 KiB
C++
526 lines
17 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <unotools/datetime.hxx>
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#include <unotools/localedatawrapper.hxx>
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#include <unotools/syslocale.hxx>
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#include <tools/date.hxx>
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#include <tools/time.hxx>
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#include <tools/datetime.hxx>
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#include <rtl/ustrbuf.hxx>
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#include <rtl/math.hxx>
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#include <osl/diagnose.h>
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#include <comphelper/string.hxx>
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#include <o3tl/string_view.hxx>
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#include <sstream>
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namespace
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{
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bool checkAllNumber(std::u16string_view rString)
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{
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sal_Int32 nPos = 0;
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sal_Int32 nLen = rString.size();
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// skip white space
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while( nPos < nLen && ' ' == rString[nPos] )
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nPos++;
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if( nPos < nLen && '-' == rString[nPos] )
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nPos++;
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// get number
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while( nPos < nLen &&
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'0' <= rString[nPos] &&
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'9' >= rString[nPos] )
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{
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nPos++;
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}
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return nPos == nLen;
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}
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/** convert string to number with optional min and max values */
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bool convertNumber32(sal_Int32& rValue,
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std::u16string_view rString,
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sal_Int32 /*nMin*/ = -1, sal_Int32 /*nMax*/ = -1)
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{
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if (!checkAllNumber(rString))
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{
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rValue = 0;
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return false;
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}
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rValue = o3tl::toInt32(rString);
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return true;
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}
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bool convertNumber64(sal_Int64& rValue,
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std::u16string_view rString,
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sal_Int64 /*nMin*/ = -1, sal_Int64 /*nMax*/ = -1)
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{
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if (!checkAllNumber(rString))
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{
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rValue = 0;
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return false;
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}
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rValue = o3tl::toInt64(rString);
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return true;
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}
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// although the standard calls for fixed-length (zero-padded) tokens
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// (in their integer part), we are here liberal and allow shorter tokens
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// (when there are separators, else it is ambiguous).
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// Note that:
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// the token separator is OPTIONAL
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// empty string is a valid token! (to recognise hh or hhmm or hh:mm formats)
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// returns: success / failure
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// in case of failure, no reference argument is changed
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// arguments:
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// i_str: string to extract token from
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// index: index in i_str where to start tokenizing
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// after return, start of *next* token (if any)
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// if this was the last token, then the value is UNDEFINED
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// o_strInt: output; integer part of token
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// o_bFraction: output; was there a fractional part?
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// o_strFrac: output; fractional part of token
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bool impl_getISO8601TimeToken(std::u16string_view i_str, sal_Int32 &nPos, OUString &resInt, bool &bFraction, OUString &resFrac)
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{
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bFraction = false;
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// all tokens are of length 2
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const sal_Int32 nEndPos = nPos + 2;
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const sal_Unicode c0 = '0';
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const sal_Unicode c9 = '9';
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const sal_Unicode sep = ':';
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for (;nPos < nEndPos && nPos < static_cast<sal_Int32>(i_str.size()); ++nPos)
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{
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const sal_Unicode c = i_str[nPos];
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if (c == sep)
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return true;
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if (c < c0 || c > c9)
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return false;
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resInt += OUStringChar(c);
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}
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if (nPos == static_cast<sal_Int32>(i_str.size()) || i_str[nPos] == sep)
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return true;
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if (i_str[nPos] == ',' || i_str[nPos] == '.')
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{
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bFraction = true;
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++nPos;
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for (; nPos < static_cast<sal_Int32>(i_str.size()); ++nPos)
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{
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const sal_Unicode c = i_str[nPos];
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if (c == 'Z' || c == '+' || c == '-')
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{
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--nPos; // we don't want to skip the tz separator
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return true;
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}
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if (c == sep)
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// fractional part allowed only in *last* token
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return false;
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if (c < c0 || c > c9)
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return false;
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resFrac += OUStringChar(c);
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}
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OSL_ENSURE(nPos == static_cast<sal_Int32>(i_str.size()), "impl_getISO8601TimeToken internal error; expected to be at end of string");
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return true;
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}
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if (i_str[nPos] == 'Z' || i_str[nPos] == '+' || i_str[nPos] == '-')
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{
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--nPos; // we don't want to skip the tz separator
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return true;
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}
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else
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return false;
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}
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bool getISO8601TimeToken(std::u16string_view i_str, sal_Int32 &io_index, OUString &o_strInt, bool &o_bFraction, OUString &o_strFrac)
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{
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OUString resInt;
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OUString resFrac;
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bool bFraction = false;
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sal_Int32 index = io_index;
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if(!impl_getISO8601TimeToken(i_str, index, resInt, bFraction, resFrac))
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return false;
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else
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{
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io_index = index+1;
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o_strInt = resInt;
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o_strFrac = resFrac;
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o_bFraction = bFraction;
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return true;
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}
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}
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bool getISO8601TimeZoneToken(std::u16string_view i_str, sal_Int32 &io_index, OUString &o_strInt)
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{
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const sal_Unicode c0 = '0';
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const sal_Unicode c9 = '9';
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const sal_Unicode sep = ':';
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if (i_str[io_index] == 'Z') // UTC timezone indicator
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{
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++io_index;
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o_strInt = "Z";
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return true;
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}
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else if (i_str[io_index] == '+' || i_str[io_index] == '-') // other timezones indicator
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{
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++io_index;
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o_strInt.clear();
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for (; io_index < static_cast<sal_Int32>(i_str.size()); ++io_index)
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{
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const sal_Unicode c = i_str[io_index];
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if ((c < c0 || c > c9) && c != sep)
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return false;
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o_strInt += OUStringChar(c);
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}
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return true;
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}
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else
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return false;
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}
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}
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namespace utl
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{
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const LocaleDataWrapper& GetLocaleData()
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{
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static SvtSysLocale ourSysLocale;
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return ourSysLocale.GetLocaleData();
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}
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DateTime GetDateTime(const css::util::DateTime& _rDT) { return DateTime(_rDT); }
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OUString GetDateTimeString(const css::util::DateTime& _rDT)
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{
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// String with date and time information (#i20172#)
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DateTime aDT(GetDateTime(_rDT));
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const LocaleDataWrapper& rLoDa = GetLocaleData();
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return rLoDa.getDate(aDT) + " " + rLoDa.getTime(aDT);
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}
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OUString GetDateTimeString(sal_Int32 _nDate, sal_Int32 _nTime)
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{
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const LocaleDataWrapper& rLoDa = GetLocaleData();
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Date aDate(_nDate);
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tools::Time aTime(_nTime * tools::Time::nanoPerCenti);
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return rLoDa.getDate(aDate) + ", " + rLoDa.getTime(aTime);
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}
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OUString GetDateString(const css::util::DateTime& _rDT)
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{
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return GetLocaleData().getDate(GetDateTime(_rDT));
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}
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void typeConvert(const Date& _rDate, css::util::Date& _rOut)
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{
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_rOut.Day = _rDate.GetDay();
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_rOut.Month = _rDate.GetMonth();
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_rOut.Year = _rDate.GetYear();
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}
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void typeConvert(const css::util::Date& _rDate, Date& _rOut)
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{
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_rOut = Date(_rDate.Day, _rDate.Month, _rDate.Year);
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}
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void typeConvert(const DateTime& _rDateTime, css::util::DateTime& _rOut)
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{
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_rOut.Year = _rDateTime.GetYear();
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_rOut.Month = _rDateTime.GetMonth();
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_rOut.Day = _rDateTime.GetDay();
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_rOut.Hours = _rDateTime.GetHour();
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_rOut.Minutes = _rDateTime.GetMin();
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_rOut.Seconds = _rDateTime.GetSec();
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_rOut.NanoSeconds = _rDateTime.GetNanoSec();
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}
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void typeConvert(const css::util::DateTime& _rDateTime, DateTime& _rOut)
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{
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Date aDate(_rDateTime.Day, _rDateTime.Month, _rDateTime.Year);
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tools::Time aTime(_rDateTime.Hours, _rDateTime.Minutes, _rDateTime.Seconds, _rDateTime.NanoSeconds);
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_rOut = DateTime(aDate, aTime);
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}
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OUString toISO8601(const css::util::DateTime& rDateTime)
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{
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OUStringBuffer rBuffer(32);
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rBuffer.append(static_cast<sal_Int32>(rDateTime.Year));
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rBuffer.append('-');
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if( rDateTime.Month < 10 )
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rBuffer.append('0');
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rBuffer.append(static_cast<sal_Int32>(rDateTime.Month));
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rBuffer.append('-');
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if( rDateTime.Day < 10 )
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rBuffer.append('0');
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rBuffer.append(static_cast<sal_Int32>(rDateTime.Day));
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if( rDateTime.NanoSeconds != 0 ||
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rDateTime.Seconds != 0 ||
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rDateTime.Minutes != 0 ||
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rDateTime.Hours != 0 )
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{
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rBuffer.append('T');
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if( rDateTime.Hours < 10 )
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rBuffer.append('0');
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rBuffer.append(static_cast<sal_Int32>(rDateTime.Hours));
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rBuffer.append(':');
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if( rDateTime.Minutes < 10 )
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rBuffer.append('0');
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rBuffer.append(static_cast<sal_Int32>(rDateTime.Minutes));
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rBuffer.append(':');
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if( rDateTime.Seconds < 10 )
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rBuffer.append('0');
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rBuffer.append(static_cast<sal_Int32>(rDateTime.Seconds));
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if ( rDateTime.NanoSeconds > 0)
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{
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OSL_ENSURE(rDateTime.NanoSeconds < 1000000000,"NanoSeconds cannot be more than 999 999 999");
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rBuffer.append(',');
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std::ostringstream ostr;
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ostr.fill('0');
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ostr.width(9);
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ostr << rDateTime.NanoSeconds;
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rBuffer.append(OUString::createFromAscii(ostr.str().c_str()));
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}
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}
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return rBuffer.makeStringAndClear();
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}
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/** convert ISO8601 DateTime String to util::DateTime */
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bool ISO8601parseDateTime(std::u16string_view rString, css::util::DateTime& rDateTime)
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{
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bool bSuccess = true;
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std::u16string_view aDateStr, aTimeStr;
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css::util::Date aDate;
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css::util::Time aTime;
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size_t nPos = rString.find( 'T' );
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if ( nPos != std::u16string_view::npos )
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{
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aDateStr = rString.substr( 0, nPos );
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aTimeStr = rString.substr( nPos + 1 );
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}
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else
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aDateStr = rString; // no separator: only date part
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bSuccess = ISO8601parseDate(aDateStr, aDate);
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if ( bSuccess && !aTimeStr.empty() ) // time is optional
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{
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bSuccess = ISO8601parseTime(aTimeStr, aTime);
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}
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if (bSuccess)
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{
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rDateTime = css::util::DateTime(aTime.NanoSeconds, aTime.Seconds, aTime.Minutes, aTime.Hours,
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aDate.Day, aDate.Month, aDate.Year, false);
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}
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return bSuccess;
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}
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/** convert ISO8601 Date String to util::Date */
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// TODO: supports only calendar dates YYYY-MM-DD
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// MISSING: calendar dates YYYYMMDD YYYY-MM
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// year, week date, ordinal date
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bool ISO8601parseDate(std::u16string_view aDateStr, css::util::Date& rDate)
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{
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const sal_Int32 nDateTokens {comphelper::string::getTokenCount(aDateStr, '-')};
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if (nDateTokens<1 || nDateTokens>3)
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return false;
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sal_Int32 nYear = 1899;
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sal_Int32 nMonth = 12;
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sal_Int32 nDay = 30;
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sal_Int32 nIdx {0};
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if ( !convertNumber32( nYear, o3tl::getToken(aDateStr, 0, '-', nIdx ), 0, 9999 ) )
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return false;
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if ( nDateTokens >= 2 )
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if ( !convertNumber32( nMonth, o3tl::getToken(aDateStr, 0, '-', nIdx ), 0, 12 ) )
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return false;
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if ( nDateTokens >= 3 )
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if ( !convertNumber32( nDay, o3tl::getToken(aDateStr, 0, '-', nIdx ), 0, 31 ) )
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return false;
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rDate.Year = static_cast<sal_uInt16>(nYear);
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rDate.Month = static_cast<sal_uInt16>(nMonth);
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rDate.Day = static_cast<sal_uInt16>(nDay);
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return true;
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}
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/** convert ISO8601 Time String to util::Time */
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bool ISO8601parseTime(std::u16string_view aTimeStr, css::util::Time& rTime)
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{
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sal_Int32 nHour = 0;
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sal_Int32 nMin = 0;
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sal_Int32 nSec = 0;
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sal_Int32 nNanoSec = 0;
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sal_Int32 n = 0;
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OUString tokInt;
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OUString tokFrac;
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OUString tokTz;
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bool bFrac = false;
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// hours
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bool bSuccess = getISO8601TimeToken(aTimeStr, n, tokInt, bFrac, tokFrac);
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if (!bSuccess)
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return false;
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if ( bFrac && n < static_cast<sal_Int32>(aTimeStr.size()))
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{
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// is it junk or the timezone?
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bSuccess = getISO8601TimeZoneToken(aTimeStr, n, tokTz);
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if (!bSuccess)
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return false;
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}
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bSuccess = convertNumber32( nHour, tokInt, 0, 23 );
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if (!bSuccess)
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return false;
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if (bFrac)
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{
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sal_Int64 fracNumerator;
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bSuccess = convertNumber64(fracNumerator, tokFrac);
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if ( bSuccess )
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{
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double frac = static_cast<double>(fracNumerator) / pow(static_cast<double>(10), static_cast<double>(tokFrac.getLength()));
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// minutes
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OSL_ENSURE(frac < 1 && frac >= 0, "ISO8601parse internal error frac hours (of hours) not between 0 and 1");
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frac *= 60;
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nMin = floor(frac);
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frac -= nMin;
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// seconds
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OSL_ENSURE(frac < 1 && frac >= 0, "ISO8601parse internal error frac minutes (of hours) not between 0 and 1");
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frac *= 60;
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nSec = floor(frac);
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frac -= nSec;
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// nanoseconds
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OSL_ENSURE(frac < 1 && frac >= 0, "ISO8601parse internal error frac seconds (of hours) not between 0 and 1");
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frac *= 1000000000;
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nNanoSec = ::rtl::math::round(frac);
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}
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goto end;
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}
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if(n >= static_cast<sal_Int32>(aTimeStr.size()))
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goto end;
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// minutes
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bSuccess = getISO8601TimeToken(aTimeStr, n, tokInt, bFrac, tokFrac);
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if (!bSuccess)
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return false;
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if ( bFrac && n < static_cast<sal_Int32>(aTimeStr.size()))
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{
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// is it junk or the timezone?
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bSuccess = getISO8601TimeZoneToken(aTimeStr, n, tokTz);
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if (!bSuccess)
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return false;
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}
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bSuccess = convertNumber32( nMin, tokInt, 0, 59 );
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if (!bSuccess)
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return false;
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if (bFrac)
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{
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sal_Int64 fracNumerator;
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bSuccess = convertNumber64(fracNumerator, tokFrac);
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if ( bSuccess )
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{
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double frac = static_cast<double>(fracNumerator) / pow(static_cast<double>(10), static_cast<double>(tokFrac.getLength()));
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// seconds
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OSL_ENSURE(frac < 1 && frac >= 0, "ISO8601parse internal error frac minutes (of minutes) not between 0 and 1");
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frac *= 60;
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nSec = floor(frac);
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frac -= nSec;
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// nanoseconds
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OSL_ENSURE(frac < 1 && frac >= 0, "ISO8601parse internal error frac seconds (of minutes) not between 0 and 1");
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frac *= 1000000000;
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nNanoSec = ::rtl::math::round(frac);
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}
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goto end;
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}
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if(n >= static_cast<sal_Int32>(aTimeStr.size()))
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goto end;
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// seconds
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bSuccess = getISO8601TimeToken(aTimeStr, n, tokInt, bFrac, tokFrac);
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if (!bSuccess)
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return false;
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if (n < static_cast<sal_Int32>(aTimeStr.size()))
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{
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// is it junk or the timezone?
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bSuccess = getISO8601TimeZoneToken(aTimeStr, n, tokTz);
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if (!bSuccess)
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return false;
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}
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// max 60 for leap seconds
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bSuccess = convertNumber32( nSec, tokInt, 0, 60 );
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if (!bSuccess)
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return false;
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if (bFrac)
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{
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sal_Int64 fracNumerator;
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bSuccess = convertNumber64(fracNumerator, tokFrac);
|
|
if ( bSuccess )
|
|
{
|
|
double frac = static_cast<double>(fracNumerator) / pow(static_cast<double>(10), static_cast<double>(tokFrac.getLength()));
|
|
// nanoseconds
|
|
OSL_ENSURE(frac < 1 && frac >= 0, "ISO8601parse internal error frac seconds (of seconds) not between 0 and 1");
|
|
frac *= 1000000000;
|
|
nNanoSec = ::rtl::math::round(frac);
|
|
}
|
|
goto end;
|
|
}
|
|
|
|
end:
|
|
if (bSuccess)
|
|
{
|
|
// normalise time
|
|
const int secondsOverflow = (nSec == 60) ? 61 : 60;
|
|
if (nNanoSec == 1000000000)
|
|
{
|
|
nNanoSec = 0;
|
|
++nSec;
|
|
}
|
|
if(nSec == secondsOverflow)
|
|
{
|
|
nSec = 0;
|
|
++nMin;
|
|
}
|
|
if(nMin == 60)
|
|
{
|
|
nMin = 0;
|
|
++nHour;
|
|
}
|
|
if(!tokTz.isEmpty())
|
|
rTime.IsUTC = (tokTz == "Z");
|
|
|
|
rTime.Hours = static_cast<sal_uInt16>(nHour);
|
|
rTime.Minutes = static_cast<sal_uInt16>(nMin);
|
|
rTime.Seconds = static_cast<sal_uInt16>(nSec);
|
|
rTime.NanoSeconds = nNanoSec;
|
|
}
|
|
|
|
return bSuccess;
|
|
}
|
|
|
|
} // namespace utl
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|