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brennier / quicktex

A vim plugin for writing Latex quickly.
http://brennier.com/projects
MIT License
116 stars 17 forks source link

Don't clobber search register #29

Closed YeungOnion closed 2 years ago

YeungOnion commented 2 years ago

I know the suggested dict value for quicktex_tex[' '] is "\<ESC>:call search('<+.*+>')\<CR>\"_c/+>/e\<CR>", but is there a way I can set it to not clobber the register? I tried "\<ESC>:let search = @/ | call search('<+.*+>')\<CR>\"_c/+>/e\<CR>:let @/ = search\<CR>" instead, but that's not working for me. I'm taking the tip to save old search from this SO question, thought there might be a name collision for search, but appears not.

brennier commented 2 years ago

Your solution is very close. The problem is that after the command c/+>/e, you're in insert mode, not normal mode. You could escape insert mode, restore the search value, and then re-enter insert mode. However, this is difficult to do without moving your cursor. I recommend using <C-o>, which allows you to execute one normal command while staying in insert mode. Thus "\<ESC>:let search = @/ | call search('<+.*+>')\<CR>\"_c/+>/e\<CR>\<C-o>:let @/ = search\<CR>" should work.

I admit, though, that this is not ideal. I think it is better to make a new function called quicktexJump(), so you that you can simply do ":call quicktexJump()\<CR>" instead. I will make this new function soon and add it to the plugin.

YeungOnion commented 2 years ago

Thanks for the tip! But I'm a little confused because I imagine I would've seen :let ... put to the buffer, but I didn't see that. I looked at :h abbreviations, but admittedly, I've only minimally looked at how quicktex actually implements the abbreviation effect.

I also tried with :keeppatterns for the search and the normal mode command to change but I couldn't get that to work either. Maybe that's an option for quicktexJump?

brennier commented 2 years ago

When I tried your suggestion, I did see :let ... put into the buffer. I'm not sure why it didn't show up for you.

QuickTex is pretty simple. It just remaps <SPC> to check whether the previous word is in the dictionary. If there's no match, then it inserts a space. If there is a match, then it looks up the corresponding string in the dictionary and executes it as keypresses.

Thank you for the suggestion to use :keeppatterns. I switched from Vim to Emacs a few years ago, so I've forgotten how to program in Vim script.

brennier commented 2 years ago

I've added a new function called QuicktexJump() and pushed the commit. If you find any problems with it, please let me know!

YeungOnion commented 2 years ago

Looks good on my end. I figured out why I don't match behavior. I added my personal expansions in after/ftplugin/*.vim and I source them with :source $HOME/.vim/after/ftplugin, but if I check the value with :let it doesn't appear I've changed it. Similarly, I call :let g:quicktex_...='...' and it also doesn't change the value of the dictionary, so that's the issue. I never learned much about vim dictionaries, but I'm thinking of leaving vim, so I won't dig into this.

Lastly, thanks for maintaining this despite using emacs. VimScript is rough.