Restore "Compose Key" documentation

[Jeremy Bícha]

For some reason, the "compose key" documentation has been removed from ubuntu-docs a few years ago.

Compare:

https://help.ubuntu.com/12.04/ubuntu-help/tips-specialchars.html

https://help.ubuntu.com/16.04/ubuntu-help/tips-specialchars.html

I think it's very useful information and should be restored.

[Doug Smythies (dsmythies)]

Some notes, mainly for my own benefit:
There is nothing mentioned in our spreadsheet (under any tab):
https://docs.google.com/spreadsheets/d/19RdaR3G_8TQ49f-Nb0XJAwhnlweMWJqsTr4kciSV5S0/edit#gid=584037095

The related revision is:
http://bazaar.launchpad.net/~ubuntu-core-doc/ubuntu-docs/trunk/revision/331#ubuntu-help/C/tips-specialchars.page

The related MP 201320 has since been deleted, so those notes are now lost. Wait, I still have the e-mails, relevant stuff copied below:

"* ubuntu-help/C/tips-specialchars.page:
  Removed the section "Compose key", which not seems to be
  applicable to Ubuntu 14.04, and the section "Input methods"."

[Gunnar Hjalmarsson (gunnarhj)]

That was my proposal, IIRC. Might have been related to the fact that the X11 stuff was overridden by ibus (default IM framework in Ubuntu) at the time. That was changed in 16.04, and restoring the compose key section may be motivated.

However, it doesn't seem to be all that easy. I recently added some dead keys (admittedly not Multi_key items) for Togo users, and it proved that you need to enable XIM to make them work.

https://bugs.launchpad.net/ubuntu/+source/xkeyboard-config/+bug/1584314/comments/6

So I think some testing is motivated before adding the section back. Possibly there is a need to say that it may be necessary to switch to XIM for it to work.

[Gunnar Hjalmarsson (gunnarhj)]

I did some testing on 16.04, and the basic compose key functionality seems to be present irrespective of how the input method related variables are set. Maybe I made a mistake when proposing that the section should be removed. Anyway, I just reinserted it. Thanks, Jeremy!

[Launchpad Janitor (janitor)]

This bug was fixed in the package ubuntu-docs - 16.10.2

---------------
ubuntu-docs (16.10.2) yakkety; urgency=medium

  * tips-specialchars.page:
    - Reinsert the "Compose key" section (LP: #1596152).
  * net-install-moonlight.page:
    - Deleted; obsolete (LP: #1563511).
  * net-install-flash.page:
    - Open source section removed; obsolete (LP: #1615404).
    - Suggest adobe-flashplugin, mention HTML5 (LP: #1568984).
  * addremove-sources.page:
    - Item about signing key added (LP: #1612631).
    - Adobe Reader no longer in Canonical Partner (LP: #1613033).
  * power-hibernate.page:
    - Mention that presence of btrfs partitions may make hibernation
      fail (LP: #1619846).
  * net-firewall-on-off.page:
    - Replace the incorrect "block" option to the ufw command with
      "deny" (LP: #1622885).
  * net-wireless-troubleshooting-hardware-check.page: apt-get -> apt
  * ubuntu-mascot-creature.png: Official yakkety mascot.
  * Updated ubuntu-help.pot.

 -- Gunnar Hjalmarsson <email address hidden> Thu, 15 Sep 2016 22:53:00 +0200