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authorTom Ryder <tom@sanctum.geek.nz>2018-06-25 13:53:32 +1200
committerTom Ryder <tom@sanctum.geek.nz>2018-06-25 13:53:32 +1200
commit5f73fa74a27145830177d4c9e24223efd70c222c (patch)
tree99472dc35e4d7a329ba36a76b61fdbeff7009b93 /vim/autoload
parent942cf4e8afef712d9329701ec145f1005e82ac68 (diff)
downloaddotfiles-5f73fa74a27145830177d4c9e24223efd70c222c.tar.gz
dotfiles-5f73fa74a27145830177d4c9e24223efd70c222c.zip
Clear local leader maps on filetype change
Iterate through all the buffer-local mappings each time the filetype changes, and clear any that begin with the local leader, using two autoloaded functions and one autoload variable for :redir. I really don't think it should be this hard. I hope I haven't missed something in the documentation that makes this easier. I thought maparg() or mapcheck() might do it, but no such luck. Maybe I can refactor this later.
Diffstat (limited to 'vim/autoload')
-rw-r--r--vim/autoload/vimrc.vim39
1 files changed, 39 insertions, 0 deletions
diff --git a/vim/autoload/vimrc.vim b/vim/autoload/vimrc.vim
new file mode 100644
index 00000000..eaeefd5d
--- /dev/null
+++ b/vim/autoload/vimrc.vim
@@ -0,0 +1,39 @@
+" Get all buffer-local mappings into a string variable
+function! vimrc#GetBufferLocalMaps() abort
+ redir => l:out
+ map <buffer>
+ redir END
+ let g:vimrc#buffer_local_maps = l:out
+endfunction
+
+" Clear all buffer-local mappings beginning with <LocalLeader>
+function! vimrc#ClearLocalLeaderMaps() abort
+
+ " Do nothing if there isn't a defined local leader
+ if !exists('g:maplocalleader')
+ return
+ endif
+
+ " Get all the buffer-local mappings into a list
+ silent call vimrc#GetBufferLocalMaps()
+ let l:mappings = split(g:vimrc#buffer_local_maps, '\n')
+
+ " Iterate through the mappings
+ for l:mapping in l:mappings
+
+ " Match the list mapping and mode; skip if no match
+ let l:matchlist = matchlist(l:mapping, '\m\C^\(.\)\s\+\(\S\+\)')
+ if !len(l:matchlist)
+ continue
+ endif
+ let l:mode = l:matchlist[1]
+ let l:sequence = l:matchlist[2]
+
+ " If the mapping starts with our local leader, clear it
+ if stridx(l:sequence, g:maplocalleader) == 0
+ execute l:mode.'unmap <buffer> '.l:sequence
+ endif
+
+ endfor
+
+endfunction