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| author | Tom Ryder <tom@sanctum.geek.nz> | 2018-07-02 10:51:31 +1200 |
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| committer | Tom Ryder <tom@sanctum.geek.nz> | 2018-07-02 10:58:35 +1200 |
| commit | ec0551228a91752d2be5f9d771e2cb5a624e6ba4 (patch) | |
| tree | a8b9855a8378fca5d37f613aefa766a7a3702589 /plugin/insert_cancel.vim | |
| download | vim-insert-cancel-ec0551228a91752d2be5f9d771e2cb5a624e6ba4.tar.gz vim-insert-cancel-ec0551228a91752d2be5f9d771e2cb5a624e6ba4.zip | |
First commit
Diffstat (limited to 'plugin/insert_cancel.vim')
| -rw-r--r-- | plugin/insert_cancel.vim | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/plugin/insert_cancel.vim b/plugin/insert_cancel.vim new file mode 100644 index 0000000..c5af7e2 --- /dev/null +++ b/plugin/insert_cancel.vim @@ -0,0 +1,35 @@ +" +" insert_cancel.vim: Cancel the current insert operation by undoing the last +" change upon insert exit, if we made a change; intended for remapping +" insert-mode Ctrl-C. +" +" Author: Tom Ryder <tom@sanctum.geek.nz> +" License: Same as Vim itself +" +if exists('g:loaded_insert_cancel') || &compatible + finish +endif +if v:version < 600 + finish +endif +let g:loaded_insert_cancel = 1 + +" InsertEnter is only available from Vim 7 +if has('autocmd') && v:version > 700 + augroup insert_cancel + autocmd! + autocmd InsertEnter * + \ let s:changenr = changenr() + augroup END +endif + +" Try to figure out whether we made a change to undo, undo it if so +function! s:InsertCancel() + if &modified && (!exists('s:changenr') || changenr() > s:changenr) + silent undo + endif +endfunction + +" Provide plugin mapping +inoremap <silent> <Plug>InsertCancel + \ <C-C>:<C-U>call <SID>InsertCancel()<CR> |