examples/date_arithmetic.lua: Remove unused c2 var

[etc/awesome.git] / luatz / tzinfo.lua

diff --git a/luatz/tzinfo.lua b/luatz/tzinfo.lua
index 11248adb34b11711372076447e2cfceaff49b4df..3ff0a075f2327c6ff4cab4510735d55952411ad4 100644 (file)
--- a/luatz/tzinfo.lua
+++ b/luatz/tzinfo.lua
@@ -1,9 +1,25 @@
 local gettime = require "luatz.gettime".gettime
 local gettime = require "luatz.gettime".gettime

+local timetable_mt = require "luatz.timetable".timetable_mt
+
+local function to_timestamp ( o )
+       if type ( o ) == "number" then
+               return o
+       elseif getmetatable ( o ) == timetable_mt then
+               return o:timestamp ( )
+       end
+end

 
 local tz_info_methods = { }
 local tz_info_mt = {
 
 local tz_info_methods = { }
 local tz_info_mt = {

+       __name = "luatz.tz_info";

        __index = tz_info_methods ;
 }
        __index = tz_info_methods ;
 }

+local tt_info_mt = {
+       __name = "luatz.tt_info";
+       __tostring = function ( self )
+               return string.format ( "tt_info:%s=%d" , self.abbr , self.gmtoff )
+       end ;
+}

 
 -- Binary search
 local function _find_current ( tzinfo , target , i , j )
 
 -- Binary search
 local function _find_current ( tzinfo , target , i , j )


@@ -52,6 +68,7 @@ local function find_current_local ( tzinfo , ts_local )
 end
 
 function tz_info_methods:find_current ( current )
 end
 
 function tz_info_methods:find_current ( current )

+       current = assert ( to_timestamp ( current ) , "invalid timestamp to :find_current" )

        return self [ _find_current ( self , current , 0 , #self ) ].info
 end
 
        return self [ _find_current ( self , current , 0 , #self ) ].info
 end
 


@@ -62,6 +79,7 @@ end
 tz_info_methods.localize = tz_info_methods.localise
 
 function tz_info_methods:utctime ( ts_local )
 tz_info_methods.localize = tz_info_methods.localise
 
 function tz_info_methods:utctime ( ts_local )

+       ts_local = assert ( to_timestamp ( ts_local ) , "invalid timestamp to :utctime" )

        local tz1 , tz2 = find_current_local ( self , ts_local )
        tz1 = self [ tz1 ].info
        if tz2 == nil then
        local tz1 , tz2 = find_current_local ( self , ts_local )
        tz1 = self [ tz1 ].info
        if tz2 == nil then


@@ -75,4 +93,5 @@ end
 
 return {
        tz_info_mt = tz_info_mt ;
 
 return {
        tz_info_mt = tz_info_mt ;

+       tt_info_mt = tt_info_mt ;

 }
 }