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if not modules then modules = { } end modules ['l-gzip'] = {
version = 1.001,
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
if not gzip then
-- no fallback yet
return
end
local suffix, suffixes = file.suffix, file.suffixes
function gzip.load(filename)
local f = io.open(filename,"rb")
if not f then
-- invalid file
elseif suffix(filename) == "gz" then
f:close()
local g = gzip.open(filename,"rb")
if g then
local str = g:read("*all")
g:close()
return str
end
else
local str = f:read("*all")
f:close()
return str
end
end
function gzip.save(filename,data)
if suffix(filename) ~= "gz" then
filename = filename .. ".gz"
end
local f = io.open(filename,"wb")
if f then
local s = zlib.compress(data or "",9,nil,15+16)
f:write(s)
f:close()
return #s
end
end
function gzip.suffix(filename)
local suffix, extra = suffixes(filename)
local gzipped = extra == "gz"
return suffix, gzipped
end
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