This repository contains some useful LaTeX snippets for the LuaSnip engine, most made by me and some collected from other repositories, specifically, the great snippets for the case and matrix mathematical environments made by evesdropper and the indispensable get_visual function for snippets with visual placeholders, taken from ejmastnak. These snippets depend on vimtex for math context.

ejmastnak answers all these questions better than I could do. His guide is a must read. Another classic on this topic is due to gillescastel. However, you can check out the showcase gifs section to get an idea of what this is all about.

All of these snippets have detailed documentation specifying their name, trigger, whether it is automatic, visual, and what LaTeX packages it needs (if any). You can find a pdf file with this documentation in the doc folder. Some general tips and observations for using these snippets are as follows:

• A few snippets have a * in the package field, this means that the code inserted by the snippet needs a custom command (macro) defined in the preamble, these definitions can be found at the end of the documentation file in the Preamble macros section. If this field has both a package name and a *, it means it needs both, for example, amsmath* means that the command inserted requires the amsmath package and a macro.

• Some snippets have more than two commands associated with them, this means that you can choose between both, that is, they're choice nodes. Generally you cycle through them using a shortcut, in my case it's C-j to go to the next option and C-k to go back. If you don't know how to specify this in your config file, you can consult the ChoiceNode section in L3MON4D3. In my init.vim:

imap <silent><expr> <C-j> luasnip#choice_active() ? '<Plug>luasnip-next-choice' : '<C-j>'
smap <silent><expr> <C-j> luasnip#choice_active() ? '<Plug>luasnip-next-choice' : '<C-j>'
imap <silent><expr> <C-k> luasnip#choice_active() ? '<Plug>luasnip-prev-choice' : '<C-k>'
smap <silent><expr> <C-k> luasnip#choice_active() ? '<Plug>luasnip-prev-choice' : '<C-k>'

• Although not specified, math snippets only work in math mode. All others work everywhere.

Clone this repository

git clone https://github.com/isaac098098/latex-luasnips
cd latex-luasnips

Run the installation script

sudo chmod +x install.sh
./install.sh

Warning: This script will override any file inside $HOME/.config/nvim/lua/plugins/luasnip/ named bib.lua and all the files inside $HOME/.config/nvim/lua/plugins/luasnip named bibtex.lua, floats.lua, fonts.lua, formatting.lua, math.lua, structure.lua or templates.lua.

Warning 2: This installation method assumes that your snippets live in the directory $HOME/.config/nvim/lua/plugins/luasnip/, if not simply copy the contents of snippets/ to the appropiate place.

The text is first selected using the visual mode with v, or V for entire lines, then it is then temporarily saved with the Tab key, then the snippet is written and expanded. All snippets marked as visual do this.

If you want to increase your writing speed with these snippets, you can start memorizing them, this will help you tremendously, especially the math ones. For this I made an Anki deck of cards, in which you have to write the corresponding snippet given a command or formula. It contains the subdecks bib, bibtex, floats, fonts, formatting, math and structures, although as I said, the most convenient to study is math. You can find it as LaTeX LuaSnips.apkg in the anki folder. Don't worry, this deck doesn't use Anki's MathJax to display formulas, it just contains images, so you can use it on any computer without configuring anything. I recommend setting the New cards/day to a high number in this deck, for it is not difficult to memorize the snippets since they only consist of strings of 2, 3 or 4 characters. I also recommend setting New card gather order to Random cards in the deck options. If you want to leave the deck as new, simply delete it and import it again. Of course all your statistics will be lost.