forked from minetest-mods/irc
21 lines
613 B
Lua
21 lines
613 B
Lua
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--Base 64 encode -- for SASL authentication
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local b='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
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function mt_irc.b64e(data)
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return ((data:gsub('.', function(x)
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local r,b='',x:byte()
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for i=8,1,-1 do r=r..(b%2^i-b%2^(i-1)>0 and '1' or '0') end
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return r;
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end)..'0000'):gsub('%d%d%d?%d?%d?%d?', function(x)
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if (#x < 6) then return '' end
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local c=0
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for i=1,6 do c=c+(x:sub(i,i)=='1' and 2^(6-i) or 0) end
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return b:sub(c+1,c+1)
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end)..({ '', '==', '=' })[#data%3+1])
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end
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-- Requested by Exio
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string.expandvars = function(s, vars)
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return s:gsub("%$%(([^)]+)%)", vars)
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end
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