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Plugins/slua_unreal/External/luasocket/mime.lua.inc

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+R"-++**++-(
+-------------------------------------------------------------------
+-- MIME support for the Lua language.
+-- Author: Diego Nehab
+-- Conforming to RFCs 2045-2049
+-----------------------------------------------------------------------------
+
+-----------------------------------------------------------------------------
+-- Declare module and import dependencies
+-----------------------------------------------------------------------------
+local base = _G
+local ltn12 = require("ltn12")
+local mime = require("mime.core")
+local io = require("io")
+local string = require("string")
+local _M = mime
+
+-- encode, decode and wrap algorithm tables
+local encodet, decodet, wrapt = {},{},{}
+
+_M.encodet = encodet
+_M.decodet = decodet
+_M.wrapt   = wrapt  
+
+-- creates a function that chooses a filter by name from a given table
+local function choose(table)
+    return function(name, opt1, opt2)
+        if base.type(name) ~= "string" then
+            name, opt1, opt2 = "default", name, opt1
+        end
+        local f = table[name or "nil"]
+        if not f then 
+            base.error("unknown key (" .. base.tostring(name) .. ")", 3)
+        else return f(opt1, opt2) end
+    end
+end
+
+-- define the encoding filters
+encodet['base64'] = function()
+    return ltn12.filter.cycle(_M.b64, "")
+end
+
+encodet['quoted-printable'] = function(mode)
+    return ltn12.filter.cycle(_M.qp, "",
+        (mode == "binary") and "=0D=0A" or "\r\n")
+end
+
+-- define the decoding filters
+decodet['base64'] = function()
+    return ltn12.filter.cycle(_M.unb64, "")
+end
+
+decodet['quoted-printable'] = function()
+    return ltn12.filter.cycle(_M.unqp, "")
+end
+
+local function format(chunk)
+    if chunk then
+        if chunk == "" then return "''"
+        else return string.len(chunk) end
+    else return "nil" end
+end
+
+-- define the line-wrap filters
+wrapt['text'] = function(length)
+    length = length or 76
+    return ltn12.filter.cycle(_M.wrp, length, length)
+end
+wrapt['base64'] = wrapt['text']
+wrapt['default'] = wrapt['text']
+
+wrapt['quoted-printable'] = function()
+    return ltn12.filter.cycle(_M.qpwrp, 76, 76)
+end
+
+-- function that choose the encoding, decoding or wrap algorithm
+_M.encode = choose(encodet)
+_M.decode = choose(decodet)
+_M.wrap = choose(wrapt)
+
+-- define the end-of-line normalization filter
+function _M.normalize(marker)
+    return ltn12.filter.cycle(_M.eol, 0, marker)
+end
+
+-- high level stuffing filter
+function _M.stuff()
+    return ltn12.filter.cycle(_M.dot, 2)
+end
+
+return _M
+)-++**++-";