habamax

Emacs, Python, Treesitter and Eglot

Treesitter (“better”/faster syntax highlighting)

1. Make sure you have Emacs with treesitter support:

   M-: (treesit-available-p) RET should return t

2. Make sure you have installed python treesitter grammar

Strus

How to use clangd C/C++ LSP in any project

tl;dr: If you want to just know the method, skip to How to section

Clangd is a state-of-the-art C/C++ LSP that can be used in every popular text editors like Neovim, Emacs or VS Code. Even CLion uses clangd under the hood. Unfortunately, clangd requires compile_commands.json to work, and the only way to painlessly generate it is to use CMake.

But what if I tell you you can quickly hack your way around that, and generate compile_commands.json for any project, no matter how compilcated? I have used that way at work for years, originaly because I used CLion which supported only CMake projects - but now I use that method succesfully with clangd and Neovim.

Method summary

Basically what we need to achieve is to create a CMake file that will generate a compile_commands.json file with information about:

raysan5

In the last years I've been asked multiple times about the comparison between raylib and SDL libraries. Unfortunately, my experience with SDL was quite limited so I couldn't provide a good comparison. In the last two years I've learned about SDL and used it to teach at University so I feel that now I can provide a good comparison between both.

Hope it helps future users to better understand this two libraries internals and functionality.

Table of Content

• Introduction
• Library Design Comparison

romainl

Extending Exuberant Ctags

Configuration

Like most CLI programs, Ctags can have its behaviour changed by passing it options like -R, to make it work recursively, or -f badaboom, to make it generate a file called badaboom.

Teaching Ctags about a new language or extending the rules of a supported language is also done with options like --langmap or --regex-<lang>. For example, we could call Ctags with these options:

$ ctags -R --regex-javascript=<regex> --regex-javascript=<regex> [...] --regex-javascript=<regex> .

romainl

Quickfix alternative to :g/foo/#

:help :global is an incredibly cool command.

One thing I like to do with :global is to list lines matching a given pattern in the current file and use that to move around. It looks like this:

:g/let/#
 7         let &path .= 'src/**,public/**,static/**'
 31     unlet b:gqview

33 nmap GQ :let b:gqview = winsaveview():set opfunc=Formatg@

romainl

" gq wrapper that:
" - tries its best at keeping the cursor in place
" - tries to handle formatter errors
function! Format(type, ...)
    normal! '[v']gq
    if v:shell_error > 0
        silent undo
        redraw
        echomsg 'formatprg "' . &formatprg . '" exited with status ' . v:shell_error
    endif

PeterRincker

" :[range]SortGroup[!] [n|f|o|b|x] /{pattern}/
" e.g. :SortGroup /^header/
" e.g. :SortGroup n /^header/
" See :h :sort for details

function! s:sort_by_header(bang, pat) range
  let pat = a:pat
  let opts = ""
  if pat =~ '^\s*[nfxbo]\s'
    let opts = matchstr(pat, '^\s*\zs[nfxbo]')

romainl

My Vim-related gists

Long-form

• How to use Tim Pope's Pathogen
• Idiomatic vimrc (superseded by idiomatic-vimrc)
• Clipboard sharing on Mac OS X is easy
• Apprentice — The Making Of
• Vim: pushing built-in features beyond their limits
• The right way to override any highlighting if you don't want to edit the colorscheme file directly

romainl

" 24 simple pseudo-text objects
" -----------------------------
" i_ i. i: i, i; i| i/ i\ i* i+ i- i#
" a_ a. a: a, a; a| a/ a\ a* a+ a- a#
" can take a count: 2i: 3a/
for char in [ '_', '.', ':', ',', ';', '<bar>', '/', '<bslash>', '*', '+', '-', '#' ]
	execute "xnoremap i" . char . " :<C-u>execute 'normal! ' . v:count1 . 'T" . char . "v' . (v:count1 + (v:count1 - 1)) . 't" . char . "'<CR>"
	execute "onoremap i" . char . " :normal vi" . char . "<CR>"
	execute "xnoremap a" . char . " :<C-u>execute 'normal! ' . v:count1 . 'F" . char . "v' . (v:count1 + (v:count1 - 1)) . 'f" . char . "'<CR>"
	execute "onoremap a" . char . " :normal va" . char . "<CR>"

romainl

Redirect the output of a Vim or external command into a scratch buffer

Usage (any shell)

Show full output of command :hi in scratch window:

:Redir hi

Show full output of command :!ls -al in scratch window: