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Lua

MIME Header Q and B Encoding and Decoding

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Demonstrates how to Q and B encode/decode.

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Lua
local chilkat = require("chilkat")

local success = false

local sb = chilkat.StringBuilder.new()

sb:append("This is a test")

print(sb:get_encoded("B", "utf-8"))
-- output is:
-- =?utf-8?B?VGhpcyBpcyBhIHRlc3Q=?=

print(sb:get_encoded("Q", "iso-8859-1"))
-- output is:
-- =?utf-8?Q?This_is_a_test?=

local sb2 = chilkat.StringBuilder.new()

sb2:append("=?utf-8?B?VGhpcyBpcyBhIHRlc3Q=?=")
sb2:decode("B", "utf-8")
print(sb2:get_as_string())

-- output is:
-- This is a test

sb2:clear()
sb2:append("=?utf-8?Q?This_is_a_test?=")
sb2:decode("Q", "utf-8")
print(sb2:get_as_string())

-- output is:
-- This is a test

-- "B" or "Q" will decode both B and Q.
sb2:clear()
sb2:append("=?utf-8?Q?This_is_a_test?= 123 =?utf-8?B?VGhpcyBpcyBhIHRlc3Q=?=")
sb2:decode("Q", "utf-8")
print(sb2:get_as_string())

-- output is:
-- This is a test 123 This is a test