src/timetable: Move normalise to be a method on timetable object

[etc/awesome.git] / src / timetable.lua

diff --git a/src/timetable.lua b/src/timetable.lua
index 81fcbf8acd6ff9e75ff5c3fad70732c916e9a80f..7e986a15c62b87802dcf65d98fccc4101fb52af1 100644 (file)
--- a/src/timetable.lua
+++ b/src/timetable.lua
@@ -72,9 +72,8 @@ local function unpack_tm ( tm )
                tm.sec  or 0
 end
 
                tm.sec  or 0
 end
 

-local function normalise ( tm )
-       local year , month , day , hour , min , sec = unpack_tm ( tm )
-
+-- Modify parameters so they all fit within the "normal" range
+local function normalise ( year , month , day , hour , min , sec )

        min  , sec  = increment ( min  , sec  , 60 ) -- TODO: consider leap seconds?
        hour , min  = increment ( hour , min  , 60 )
        day  , hour = increment ( day  , hour , 24 )
        min  , sec  = increment ( min  , sec  , 60 ) -- TODO: consider leap seconds?
        hour , min  = increment ( hour , min  , 60 )
        day  , hour = increment ( day  , hour , 24 )


@@ -96,23 +95,54 @@ local function normalise ( tm )
        year , month = increment ( year , month - 1 , 12 )
        month = month + 1
 
        year , month = increment ( year , month - 1 , 12 )
        month = month + 1
 

-       tm.sec   = sec
-       tm.min   = min
-       tm.hour  = hour
-       tm.day   = day
-       tm.month = month
-       tm.year  = year
+       return year , month , day , hour , min , sec
+end
+
+
+local timetable_methods = { }
+
+function timetable_methods:normalise ( )
+       local year , month , day
+       year , month , day , self.hour , self.min , self.sec = normalise ( unpack_tm ( self ) )
+
+       self.day   = day
+       self.month = month
+       self.year  = year

 
        local yday = day_of_year ( day , month , year )
        local wday = day_of_week ( yday , year )
 
 
        local yday = day_of_year ( day , month , year )
        local wday = day_of_week ( yday , year )
 

-       tm.yday = yday
-       tm.wday = wday
+       self.yday = yday
+       self.wday = wday

 
 

-       return tm
+       return self
+end
+timetable_methods.normalize = timetable_methods.normalise -- American English
+
+local timetable_mt = {
+       __index    = timetable_methods ;
+}
+
+local function cast_timetable ( tm )
+       return setmetatable ( tm , timetable_mt )
+end
+
+local function new_timetable ( year , month , day , hour , min , sec )
+       return cast_timetable {
+               year  = year ;
+               month = month ;
+               day   = day ;
+               hour  = hour ;
+               min   = min ;
+               sec   = sec ;
+       }

 end
 
 return {
        doomsday  = doomsday ;
        normalise = normalise ;
 end
 
 return {
        doomsday  = doomsday ;
        normalise = normalise ;

+
+       new = new_timetable ;
+       cast = cast_timetable ;
+       timetable_mt = timetable_mt ;

 }
 }