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Re: [bug-gnu-libiconv] UTF-7-IMAP support

From: Bruno Haible
Subject: Re: [bug-gnu-libiconv] UTF-7-IMAP support
Date: Wed, 22 Mar 2023 13:54:08 +0100


Jan Engelhardt asked:
> The glibc implementation of iconv has gained a "UTF-7-IMAP" variant in 
> 2.36 (commit 9df157b4ed521084). Could such a transformation be added to 
> libiconv as well?

No, there are no plans to add this to GNU libiconv.

The reason is that, as described in libiconv/NOTES, libiconv is an
internationalization library. UTF-7-IMAP (a.k.a. mUTF-7 [1]) is
for a single kind of application, namely MTAs with connection to
mail servers that speak the protocol IMAP 4 rev 1 [1]. I expect that
programs that support IMAP have been including such a conversion
facility for a long time.


[1] https://en.wikipedia.org/wiki/UTF-7#Motivation

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