Adds a simple generic function find-mime-text-part which returns the
first suitable text/* part in any MIME part it is given.
Has no meaningful alternatives handling at the moment: It will pick the
first text part and doesn't allow specifying a preference.
Change-Id: Id9b113b3ef3ca1a575ce8f3582a4f85e30edfb43
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3379
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Used http://wcp.sdf-eu.org/software/mime4cl-20150207T211851.tbz (sha256
5a914669bba7561efe59a4fd0817204c07ad2add98b03ae206ef185ac04affb3).
Importing seems sensible since there's no upstream repo nor has their
been a release since 2015.
This is just an import commit, so the changes made to make it build are
more discoverable as their own commit.
Change-Id: I2ff28c3c7433abdf7857204bc89eaf9edc0b1cbc
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3378
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>