lldateutil.cpp
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- /**
- * @file lldateutil.cpp
- *
- * $LicenseInfo:firstyear=2009&license=viewergpl$
- *
- * Copyright (c) 2009-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- #include "llviewerprecompiledheaders.h"
- #include "lldateutil.h"
- // Linden libraries
- #include "lltrans.h"
- #include "llui.h"
- static S32 DAYS_PER_MONTH_NOLEAP[] =
- { 31, 28, 21, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
- static S32 DAYS_PER_MONTH_LEAP[] =
- { 31, 29, 21, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
- static S32 days_from_month(S32 year, S32 month)
- {
- llassert_always(1 <= month);
- llassert_always(month <= 12);
- if (year % 4 == 0
- && year % 100 != 0)
- {
- // leap year
- return DAYS_PER_MONTH_LEAP[month - 1];
- }
- else
- {
- return DAYS_PER_MONTH_NOLEAP[month - 1];
- }
- }
- std::string LLDateUtil::ageFromDate(const std::string& date_string,
- const LLDate& now)
- {
- S32 born_month, born_day, born_year;
- S32 matched = sscanf(date_string.c_str(), "%d/%d/%d", &born_month, &born_day, &born_year);
- if (matched != 3) return "???";
- LLDate born_date;
- born_date.fromYMDHMS(born_year, born_month, born_day);
- F64 born_date_secs_since_epoch = born_date.secondsSinceEpoch();
- // Correct for the fact that account creation dates are in Pacific time,
- // == UTC - 8
- born_date_secs_since_epoch += 8.0 * 60.0 * 60.0;
- born_date.secondsSinceEpoch(born_date_secs_since_epoch);
- // explode out to month/day/year again
- born_date.split(&born_year, &born_month, &born_day);
- S32 now_year, now_month, now_day;
- now.split(&now_year, &now_month, &now_day);
- // Do grade-school subtraction, from right-to-left, borrowing from the left
- // when things go negative
- S32 age_days = (now_day - born_day);
- if (age_days < 0)
- {
- now_month -= 1;
- if (now_month == 0)
- {
- now_year -= 1;
- now_month = 12;
- }
- age_days += days_from_month(now_year, now_month);
- }
- S32 age_months = (now_month - born_month);
- if (age_months < 0)
- {
- now_year -= 1;
- age_months += 12;
- }
- S32 age_years = (now_year - born_year);
- // Noun pluralization depends on language
- std::string lang = LLUI::getLanguage();
- // Try for age in round number of years
- LLStringUtil::format_map_t args;
- if (age_months > 0 || age_years > 0)
- {
- args["[AGEYEARS]"] =
- LLTrans::getCountString(lang, "AgeYears", age_years);
- args["[AGEMONTHS]"] =
- LLTrans::getCountString(lang, "AgeMonths", age_months);
- // We want to display times like:
- // 2 year 2 months
- // 2 years (implicitly 0 months)
- // 11 months
- if (age_years > 0)
- {
- if (age_months > 0)
- {
- return LLTrans::getString("YearsMonthsOld", args);
- }
- else
- {
- return LLTrans::getString("YearsOld", args);
- }
- }
- else // age_years == 0
- {
- return LLTrans::getString("MonthsOld", args);
- }
- }
- // you're 0 months old, display in weeks or days
- // Now for age in weeks
- S32 age_weeks = age_days / 7;
- age_days = age_days % 7;
- if (age_weeks > 0)
- {
- args["[AGEWEEKS]"] =
- LLTrans::getCountString(lang, "AgeWeeks", age_weeks);
- return LLTrans::getString("WeeksOld", args);
- }
- // Down to days now
- if (age_days > 0)
- {
- args["[AGEDAYS]"] =
- LLTrans::getCountString(lang, "AgeDays", age_days);
- return LLTrans::getString("DaysOld", args);
- }
- return LLTrans::getString("TodayOld");
- }
- std::string LLDateUtil::ageFromDate(const std::string& date_string)
- {
- return ageFromDate(date_string, LLDate::now());
- }