Breaking on ESC and Backspace key

[hameedullah]

For some unknown reason, delimitMate starts breaking on and Backspace key. As soon as I hit key in insert mode it gets out of insert mode and wait for few seconds for me to hit another key, if I hit another key it goes back to insert mode and inserts that key prefixed with "delimitMateEsc". And if I don't hit any key after hitting it times out after few seconds and goes back into insert mode and just inserts "delimitMateEsc".

The behavior with Backspace key is different, when I hit backsapace key in insert mode it just immediately inserts delimitMateBS.

UPDATE:
The above weird situation does not always occur. It only occurs after few minutes of editing and using Vim.

File type is: PHP

[Raimondi]

When the problem appears, can you paste the output of the following commands here:

:verbose imap <Esc>
:verbose imap <BS>

[hameedullah]

Output of ":verbose imap <Esc>"
i <Esc>OC <Right>
Last set from ~/.vim/bundle/delimitMate/plugin/delimitMate.vim
i <Esc> * <Plug>delimitMateEsc
Last set from ~/.vim/bundle/lusty/plugin/lusty-juggler.vim

Output of ":verbose imap <BS>"
i <BS> * <Plug>delimitMateBS
Last set from ~/.vim/bundle/lusty/plugin/lusty-juggler.vim

[Raimondi]

The problem is that lusty-juggler changes the mapping for its own use and then tries to restore the previous mapping, but that's not reliable and causes problems because lusty-juggler uses :inoremap and delimitMate needs :imap in those cases.

Make sure the problem hasn't been fixed in the latest version and then contact lusty-juggler's maintainer.

[sjbach]

Hi Raimondi, not sure that diagnosis is correct. I believe it's a bug in Vim, not in LustyJuggler -- hameedullah, what version of Vim are you running? If it's below 7.3.32 (see the "Included patches" line in the output of vim --version), then you may want to try upgrading and see if that fixes the problem.

[hameedullah]

Yes, i am using Vim 7.2 the default that comes with Ubuntu 10.04. I will try to upgrade and see if that fixes the issue.

[Raimondi]

Hi sjbach, after looking at the requested mappings, I took a quick look into LustyJuggler's code and found this line:

https://github.com/sjbach/lusty/blob/master/plugin/lusty-juggler.vim#L682

It's certainly due to a limitation of Vim (on pre 7.3 versions), but the reported problem was linked to LustyJuggler, not delimitMate. I'd also like to note that keys mapped to <Plug> mappings aren't set with noremap as they need to be expanded, I guess that'd be easy to test and use the correct command when restoring the mapping.

[grota]

I believe I have a working fix with https://github.com/grota/lusty/commit/06c84b805f775eb19724ba6d52454be7394127ab