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(parent: 6f616bd) | patch
emacs: help: remove duplicate bindings
authorMark Walters <markwalters1009@gmail.com>
Tue, 12 Nov 2013 20:10:55 +0000 (20:10 +0000)
committerDavid Bremner <david@tethera.net>
Thu, 14 Nov 2013 01:33:28 +0000 (21:33 -0400)
commit9d0174b11c11ca227b5666e4ce80229220b9f9e2
treeed48b8442067158bb1baf202b377230464da5c22tree | snapshot
parent6f616bd733eaa010eb68dd588d56d5d909f1631dcommit | diff
emacs: help: remove duplicate bindings

If the user (or a mode) overrides a keybinding from the common keymap
in one of the modes then both help lines appear in the help screen
even though only one of them is applicable.

Fix this by checking if we already have that key binding. We do this
by constructing an list of (key . docstring) pairs so it is easy to
check if we have already had that binding. Then the actual print help
routine changes these pairs into strings "key \t docstring"
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