/usr/share/doc/texlive-doc/support/lua-alt-getopt/alt_getopt

#!/usr/bin/env lua

require "alt_getopt"

local long_opts = {
   verbose = "v",
   help    = "h",
   fake    = 0,
   len     = 1,
   output  = "o",
   set_value = "S",
   ["set-output"] = "o"
}

local ret
local optarg
local optind
opts,optind,optarg = alt_getopt.get_ordered_opts (arg, "hVvo:n:S:", long_opts)
for i,v in ipairs (opts) do
   if optarg [i] then
      io.write ("option `" .. v .. "': " .. optarg [i] .. "\n")
   else
      io.write ("option `" .. v .. "'\n")
   end
end

optarg,optind = alt_getopt.get_opts (arg, "hVvo:n:S:", long_opts)
for k,v in pairs (optarg) do
   io.write ("fin-option `" .. k .. "': " .. v .. "\n")
end

for i = optind,#arg do
   io.write (string.format ("ARGV [%s] = %s\n", i, arg [i]))
end

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