#!@OOREXX_SHEBANG_PROGRAM@ /*----------------------------------------------------------------------------*/ /* */ /* Copyright (c) 2005-2014 Rexx Language Association. All rights reserved. */ /* */ /* This program and the accompanying materials are made available under */ /* the terms of the Common Public License v1.0 which accompanies this */ /* distribution. A copy is also available at the following address: */ /* https://www.oorexx.org/license.html */ /* */ /* Redistribution and use in source and binary forms, with or */ /* without modification, are permitted provided that the following */ /* conditions are met: */ /* */ /* Redistributions of source code must retain the above copyright */ /* notice, this list of conditions and the following disclaimer. */ /* Redistributions in binary form must reproduce the above copyright */ /* notice, this list of conditions and the following disclaimer in */ /* the documentation and/or other materials provided with the distribution. */ /* */ /* Neither the name of Rexx Language Association nor the names */ /* of its contributors may be used to endorse or promote products */ /* derived from this software without specific prior written permission. */ /* */ /* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS */ /* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT */ /* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS */ /* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT */ /* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */ /* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED */ /* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */ /* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY */ /* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */ /* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS */ /* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* */ /*----------------------------------------------------------------------------*/ /******************************************************************************/ /* timezone.rex Open Object Rexx Samples */ /* */ /* -------------------------------------------------------------------------- */ /* */ /* Description: */ /* Sample of performing timezone manipulations. Also shows a handy */ /* technique for embedding data in program. */ /******************************************************************************/ sampleDate = 'March 7 2009 7:30pm EST' Parse var sampleDate month day year time zone -- get a datetime object for the part basedate = .DateTime~fromNormalDate(day month~left(3) year) -- now get an object for the time portion basetime = .DateTime~fromCivilTime(time) -- this will give us this in a merged format...now we can add in the -- timezone informat mergedTime = (basedate + basetime~timeofday)~isoDate zone = .TimeZoneDataBase~getTimeZone(zone) -- parse the full iso date and add in the time zone offset finalTime = .DateTime~fromIsoDate(mergedTime, zone~datetimeOffset) say 'Original date:' finalTime~utcIsoDate say 'Result after adding 12 hours:' finalTime~addHours(12)~utcIsoDate say 'Result shifted to UTC:' finalTime~toTimeZone(0)~utcIsoDate say 'Result shifted to Pacific Standard Time:' finalTime~toTimeZone(.TimeZoneDataBase~getTimeZone('PST')~datetimeOffset)~utcIsoDate say 'Result shifted to Nepal Time:' finalTime~toTimeZone(.TimeZoneDataBase~getTimeZone('NPT')~datetimeOffset)~utcIsoDate -- a descriptor for timezone information ::class timezone ::method init expose code name offset altname region use strict arg code, name, offset, altname, region code~upper ::attribute code GET ::attribute name GET ::attribute offset GET ::attribute altname GET ::attribute region GET ::attribute datetimeOffset GET expose offset return offset * 60 -- our database of timezones ::class timezonedatabase -- initialize the class object. This occurs when the program is first loaded ::method init class expose timezones timezones = .directory~new -- extract the timezone data which is conveniently stored in a method data = self~instanceMethod('TIMEZONEDATA')~source loop line over data -- skip over the comment delimiters, blank lines, and the 'return' -- lines that force the comments to be included in the source if line = '/*' | line = '*/' | line = '' | line = 'return' then iterate parse var line '{' region '}' if region \= '' then do zregion = region iterate end else do parse var line abbrev . '!' fullname '!' altname . '!' offset . timezone = .timezone~new(abbrev, fullname, offset, altname, zregion) timezones[timezone~code] = timezone end end ::method getTimezone class expose timezones use strict arg code return timezones[code~upper] -- this is a dummy method containing the timezone database data. -- we'll access the source directly and extract the data held in comments -- the two return statements force the comment lines to be included in the -- source rather than processed as part of comments between directives ::method timeZoneData class private return /* {Universal} UTC ! Coordinated Universal Time ! ! 0 {Europe} BST ! British Summer Time ! ! +1 CEST ! Central European Summer Time ! ! +2 CET ! Central European Time ! ! +1 EEST ! Eastern European Summer Time ! ! +3 EET ! Eastern European Time ! ! +2 GMT ! Greenwich Mean Time ! ! 0 IST ! Irish Standard Time ! ! +1 KUYT ! Kuybyshev Time ! ! +4 MSD ! Moscow Daylight Time ! ! +4 MSK ! Moscow Standard Time ! ! +3 SAMT ! Samara Time ! ! +4 WEST ! Western European Summer Time ! ! +1 WET ! Western European Time ! ! 0 {North America} ADT ! Atlantic Daylight Time ! HAA ! -3 AKDT ! Alaska Daylight Time ! HAY ! -8 AKST ! Alaska Standard Time ! HNY ! -9 AST ! Atlantic Standard Time ! HNA ! -4 CDT ! Central Daylight Time ! HAC ! -5 CST ! Central Standard Time ! HNC ! -6 EDT ! Eastern Daylight Time ! HAE ! -4 EGST ! Eastern Greenland Summer Time ! ! 0 EGT ! East Greenland Time ! ! -1 EST ! Eastern Standard Time ! HNE,ET ! -5 HADT ! Hawaii-Aleutian Daylight Time ! ! -9 HAST ! Hawaii-Aleutian Standard Time ! ! -10 MDT ! Mountain Daylight Time ! HAR ! -6 MST ! Mountain Standard Time ! HNR ! -7 NDT ! Newfoundland Daylight Time ! HAT ! -2.5 NST ! Newfoundland Standard Time ! HNT ! -3.5 PDT ! Pacific Daylight Time ! HAP ! -7 PMDT ! Pierre & Miquelon Daylight Time ! ! -2 PMST ! Pierre & Miquelon Standard Time ! ! -3 PST ! Pacific Standard Time ! HNP,PT ! -8 WGST ! Western Greenland Summer Time ! ! -2 WGT ! West Greenland Time ! ! -3 {India and Indian Ocean} IST ! India Standard Time ! ! +5.5 PKT ! Pakistan Standard Time ! ! +5 BST ! Bangladesh Standard Time ! ! +6 -- Note: collision with British Summer Time NPT ! Nepal Time ! ! +5.75 BTT ! Bhutan Time ! ! +6 BIOT ! British Indian Ocean Territory Time ! IOT ! +6 MVT ! Maldives Time ! ! +5 CCT ! Cocos Islands Time ! ! +6.5 TFT ! French Southern and Antarctic Time ! ! +5 */ return