luatz/tzfile: Read in (but don't yet use) TZ string

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

diff --git a/luatz/tzfile.lua b/luatz/tzfile.lua
index 96686dcac793d0be8a834513ea0676dad250228b..36fd8a765a775e12a67715ec63cc8f6215a3fc41 100644 (file)
--- a/luatz/tzfile.lua
+++ b/luatz/tzfile.lua
@@ -1,4 +1,6 @@
 local tz_info_mt = require "luatz.tzinfo".tz_info_mt
+local tt_info_mt = require "luatz.tzinfo".tt_info_mt
+
 
 local function read_int32be ( fd )
        local data , err = fd:read ( 4 )
@@ -93,6 +95,8 @@ local function read_tz ( fd )
 
                local isgmt = assert ( read_flags ( fd , tzh_ttisgmtcnt ) )
 
+               local TZ
+
                if version == "2" then
                        --[[
                        For version-2-format timezone files, the above header and data is followed by a second header and data,
@@ -155,6 +159,12 @@ local function read_tz ( fd )
                        for use in handling instants after the last transition time stored in the file
                        (with nothing between the newlines if there is no POSIX representation for such instants).
                        ]]
+                       assert ( assert ( fd:read ( 1 ) ) == "\n" , "Expected newline at end of version 2 header" )
+
+                       TZ = assert ( fd:read ( "*l" ) )
+                       if #TZ == 0 then
+                               TZ = nil
+                       end
                end
 
                for i=1, tzh_typecnt do
@@ -162,6 +172,7 @@ local function read_tz ( fd )
                        v.abbr = abbreviations:sub ( v.abbrind+1 , v.abbrind+3 )
                        v.isstd = isstd [ i ] or false
                        v.isgmt = isgmt [ i ] or false
+                       setmetatable ( v , tt_info_mt )
                end
 
                --[[