mirror of
https://github.com/Oreolek/sixth_city.git
synced 2024-06-17 07:10:44 +03:00
83 lines
2 KiB
Lua
83 lines
2 KiB
Lua
translate = {};
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-- redefine to set source language
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translate.source = 'ru';
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-- Credit: http://lua-users.org/lists/lua-l/2010-04/msg00005.html
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function load_mo_file(mo_file)
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--------------------------------
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-- open file and read data
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--------------------------------
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local fd,err=io.open(mo_file,"rb")
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if not fd then return nil,err end
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local mo_data=fd:read("*all")
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fd:close()
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--------------------------------
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-- precache some functions
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--------------------------------
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local byte=string.byte
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local sub=string.sub
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--------------------------------
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-- check format
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--------------------------------
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local peek_long --localize
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local magic=sub(mo_data,1,4)
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-- intel magic 0xde120495
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if magic=="\222\018\004\149" then
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peek_long=function(offs)
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local a,b,c,d=byte(mo_data,offs+1,offs+4)
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return ((d*256+c)*256+b)*256+a
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end
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-- motorola magic = 0x950412de
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elseif magic=="\149\004\018\222" then
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peek_long=function(offs)
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local a,b,c,d=byte(mo_data,offs+1,offs+4)
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return ((a*256+b)*256+c)*256+d
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end
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else
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return nil,"no valid mo-file"
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end
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--------------------------------
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-- version
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--------------------------------
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local V=peek_long(4)
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if V~=0 then
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return nul,"unsupported version"
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end
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------------------------------
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-- get number of offsets of table
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------------------------------
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local N,O,T=peek_long(8),peek_long(12),peek_long(16)
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------------------------------
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-- traverse and get strings
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------------------------------
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local hash={}
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for nstr=1,N do
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local ol,oo=peek_long(O),peek_long(O+4) O=O+8
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local tl,to=peek_long(T),peek_long(T+4) T=T+8
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hash[sub(mo_data,oo+1,oo+ol)]=sub(mo_data,to+1,to+tl)
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end
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return function(text)
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return hash[text]
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end
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end
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if not LANG then
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LANG = "en"
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end
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if LANG == translate.source then
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_ = function(text)
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return text;
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end;
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else
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translate.strings = load_mo_file(LANG..'.mo');
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_ = function(text)
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return translate.strings[text];
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end
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end
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