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