Don't clobber user text objects

tpope · tpope · commit 3720d283a82c · 2011-08-26T13:36:05.000-04:00
References vim-ruby#46.
diff --git a/ftplugin/ruby.vim b/ftplugin/ruby.vim
@@ -125,16 +125,25 @@ if !exists("g:no_plugin_maps") && !exists("g:no_ruby_maps")
   xnoremap <silent> <buffer> [] :<C-U>call <SID>searchsyn('\<end\>','rubyModule\<Bar>rubyClass','b','v')<CR>
   xnoremap <silent> <buffer> ][ :<C-U>call <SID>searchsyn('\<end\>','rubyModule\<Bar>rubyClass','','v')<CR>
 
-  onoremap <silent> <buffer> im :<C-U>call <SID>wrap_i('[m',']M')<CR>
-  onoremap <silent> <buffer> am :<C-U>call <SID>wrap_a('[m',']M')<CR>
-  onoremap <silent> <buffer> ic :<C-U>call <SID>wrap_i('[[','][')<CR>
-  onoremap <silent> <buffer> ac :<C-U>call <SID>wrap_a('[[','][')<CR>
-
   let b:undo_ftplugin = b:undo_ftplugin
         \."| sil! exe 'unmap <buffer> [[' | sil! exe 'unmap <buffer> ]]' | sil! exe 'unmap <buffer> []' | sil! exe 'unmap <buffer> ]['"
         \."| sil! exe 'unmap <buffer> [m' | sil! exe 'unmap <buffer> ]m' | sil! exe 'unmap <buffer> [M' | sil! exe 'unmap <buffer> ]M'"
         \."! sil! exe 'ounmap <buffer> im'| sil! exe 'ounmap <buffer> am'| sil! exe 'ounmap <buffer> ic'| sil! exe 'ounmap <buffer> ac'"
 
+  if maparg('im','n') == ''
+    onoremap <silent> <buffer> im :<C-U>call <SID>wrap_i('[m',']M')<CR>
+    onoremap <silent> <buffer> am :<C-U>call <SID>wrap_a('[m',']M')<CR>
+    let b:undo_ftplugin = b:undo_ftplugin
+          \."! sil! exe 'ounmap <buffer> im' | sil! exe 'ounmap <buffer> am'"
+  endif
+
+  if maparg('ic','n') == ''
+    onoremap <silent> <buffer> ic :<C-U>call <SID>wrap_i('[[','][')<CR>
+    onoremap <silent> <buffer> ac :<C-U>call <SID>wrap_a('[[','][')<CR>
+    let b:undo_ftplugin = b:undo_ftplugin
+          \."| sil! exe 'ounmap <buffer> ic' | sil! exe 'ounmap <buffer> ac'"
+  endif
+
   if maparg("\<C-]>",'n') == ''
     nnoremap <silent> <buffer> <C-]>       :<C-U>exe  v:count1."tag <C-R>=RubyCursorIdentifier()<CR>"<CR>
     nnoremap <silent> <buffer> g<C-]>      :<C-U>exe         "tjump <C-R>=RubyCursorIdentifier()<CR>"<CR>
