PowerShell

MIME Header Q and B Encoding and Decoding

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Demonstrates how to Q and B encode/decode. PowerShell

Add-Type -Path "C:\chilkat\ChilkatDotNet47-x64\ChilkatDotNet47.dll"

$success = $false

$sb = New-Object Chilkat.StringBuilder

$sb.Append("This is a test")

$($sb.GetEncoded("B","utf-8"))
# output is:
# =?utf-8?B?VGhpcyBpcyBhIHRlc3Q=?=

$($sb.GetEncoded("Q","iso-8859-1"))
# output is:
# =?utf-8?Q?This_is_a_test?=

$sb2 = New-Object Chilkat.StringBuilder

$sb2.Append("=?utf-8?B?VGhpcyBpcyBhIHRlc3Q=?=")
$sb2.Decode("B","utf-8")
$($sb2.GetAsString())

# output is:
# This is a test

$sb2.Clear()
$sb2.Append("=?utf-8?Q?This_is_a_test?=")
$sb2.Decode("Q","utf-8")
$($sb2.GetAsString())

# 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")
$($sb2.GetAsString())

# output is:
# This is a test 123 This is a test