ultisnips_to_luasnip VS luacheck

I believe ultisnips has a very intuitive syntax for creating snippets. I wrote a small tool that converts some ultipsnip snippets to luasnip format. The tool can still be improved but I lost motivation after realizing that luasnip has no regex support. Here is it if you want to check it out.

Thanks for your reply. Actually, the most recent case where I have wanted to parse something has been with respect to convert "code snippets" from one language to another. Here's an attempt to my solution. It works for simple cases, but failes for cases where things are nested, such as in the example below. This is mostly due to me using any structured approach.

I have been working on converting some of my Ultisnips snippets to LuaSnips and found the process to be quite tedious. I attempted to automate the process and created a script to do so, which can be found here. Some test cases are included. While it's not possible to fully convert Ultisnips snippets to LuaSnip (as it would require converting from Python to Lua), the script is able to handle relatively simple snippets. Even if the snippet doesn't run correctly at first, it should only require a few adjustments to fix. However, since this is the first time I have written a "parser," I would appreciate any assistance, particularly with the recursive (nested) parts of the script.

Luacheck is now maintained by lunarmodules.

I first started by reading some tutorials but most of those used parser combinators. For me, parser combinators always caused some issues sooner or later (at least in Lua when trying to parse recursive / nested nodes). An example project that uses this technique is vim-vsnip: https://github.com/hrsh7th/vim-vsnip/blob/master/autoload/vsnip/snippet/parser.vim. Later, I found out that Luacheck uses a different approach which I liked better: https://github.com/lunarmodules/luacheck/blob/master/src/luacheck/parser.lua. That's the project that helped me the most while writing my own parsers for different snippet engines.

I'm just a contributor to Gabe, but I use luacheck in my other projects. Install it (with hererocks+luarocks on Win and luarocks elsewhere), set it up in your editor, and you'll get warnings about typos and other potential bugs. luacheckrc lets you configure it: turn off warnings you don't care about, customize it for different files.

Use luacheck to find all global and unused variables in your project.

I’m not really really sure what exactly you’re relying on that is so specific to Python, but Lu’s appears to have a static analysis linter. https://github.com/luarocks/luacheck