Created
May 23, 2010 16:44
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md5img
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#!/usr/bin/env lua | |
-- This code is public domain, you may use it however you like. | |
local md5 = require("md5") | |
local tonumber = tonumber | |
local ioOpen,ioRead = io.open,io.read | |
local osExecute = os.execute | |
local tableConcat,tableInsert = table.concat,table.insert | |
if not arg[1] or not arg[2] or not arg[3] then | |
print("Usage: "..arg[0].." EncodeString OutResolution OutFilename") | |
print("Requires lua-md5 (luarocks install md5).") | |
print("Also, you need convert in your path (ImageMagick)") | |
os.exit(1) | |
end | |
str = arg[1] | |
md5sum = md5.sumhexa(str) | |
out = {} | |
tableInsert(out, [[ | |
/* XPM */ | |
static char * md5_xpm[] = { | |
"5 5 5 1", | |
]]) | |
for n=1,25,6 do | |
if not colourcode then | |
colourcode = "a" | |
elseif colourcode == "a" then | |
colourcode = "b" | |
elseif colourcode == "b" then | |
colourcode = "c" | |
elseif colourcode == "c" then | |
colourcode = "d" | |
elseif colourcode == "d" then | |
colourcode = "e" | |
end | |
local colour = md5sum:sub(n,n+5) | |
tableInsert(out, "\""..colourcode.." c #"..colour.."\",\n") | |
end | |
tableInsert(out, [[ | |
"abcde", | |
"abcde", | |
"abcde", | |
"abcde", | |
"abcde" | |
}]]) | |
fhand = ioOpen("/tmp/md5img.xpm", "w") | |
fhand:write(tableConcat(out)) | |
fhand:close() | |
osExecute("convert /tmp/md5img.xpm -resize "..arg[2].." "..arg[3]) |
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