prosody
217412da818f
util/datetime.lua

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util/datetime.lua @ 7894:217412da818f

migrator: Fix argument parsing
author Kim Alvefur <zash@zash.se>
date Wed, 15 Feb 2017 15:30:19 +0100
parent 7259:d8300985f2bb
child 8555:4f0f5b49bb03
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841d61be198f Remove version number from copyright headers
Matthew Wild <mwild1@gmail.com>
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1 -- Prosody IM
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b7049746bd29 Update copyright headers for 2010
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 --
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b1885732e979 GPL->MIT!
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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9
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10 -- XEP-0082: XMPP Date and Time Profiles
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11
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12 local os_date = os.date;
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13 local os_time = os.time;
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14 local os_difftime = os.difftime;
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15 local tonumber = tonumber;
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17 local _ENV = nil;
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18
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19 local function date(t)
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20 return os_date("!%Y-%m-%d", t);
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21 end
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22
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23 local function datetime(t)
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24 return os_date("!%Y-%m-%dT%H:%M:%SZ", t);
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25 end
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26
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27 local function time(t)
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28 return os_date("!%H:%M:%S", t);
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29 end
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31 local function legacy(t)
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32 return os_date("!%Y%m%dT%H:%M:%S", t);
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33 end
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34
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35 local function parse(s)
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36 if s then
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37 local year, month, day, hour, min, sec, tzd;
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38 year, month, day, hour, min, sec, tzd = s:match("^(%d%d%d%d)%-?(%d%d)%-?(%d%d)T(%d%d):(%d%d):(%d%d)%.?%d*([Z+%-]?.*)$");
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39 if year then
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40 local time_offset = os_difftime(os_time(os_date("*t")), os_time(os_date("!*t"))); -- to deal with local timezone
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41 local tzd_offset = 0;
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42 if tzd ~= "" and tzd ~= "Z" then
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43 local sign, h, m = tzd:match("([+%-])(%d%d):?(%d*)");
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44 if not sign then return; end
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45 if #m ~= 2 then m = "0"; end
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46 h, m = tonumber(h), tonumber(m);
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47 tzd_offset = h * 60 * 60 + m * 60;
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48 if sign == "-" then tzd_offset = -tzd_offset; end
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49 end
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50 sec = (sec + time_offset) - tzd_offset;
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51 return os_time({year=year, month=month, day=day, hour=hour, min=min, sec=sec, isdst=false});
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52 end
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53 end
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54 end
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55
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56 return {
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57 date = date;
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58 datetime = datetime;
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59 time = time;
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60 legacy = legacy;
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61 parse = parse;
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62 };