nvim: correct filetype assignments

.config/nvim/lua/filetype.lua

@@ -2,13 +2,14 @@
 
 -- read files correctly
 vim.filetype.add({
-pattern = {
+extension = {
-    ['.*.lua'] = 'lua',
+    h = 'c',
-    ['.*.h'] = 'c',
+    html = 'html',
-    ['.*.html'] = 'html',
+    java = 'java',
-    ['.*.nim'] = 'nim',
+    md = 'markdown',
-    ['.*.py'] = 'python',
+    nim = 'nim',
-    ['.*.tex'] = 'tex',
+    py = 'python',
+    tex = 'tex',
 }})
 
 -- formatting options
@@ -27,67 +28,6 @@ vim.api.nvim_create_autocmd({'FileType'},
 command = 'setlocal shiftwidth=2 softtabstop=2',
 })
 
--- formatting programs
-vim.api.nvim_create_autocmd({'FileType'},
-{pattern = {'c'},
-command = 'setlocal formatprg=astyle --mode=c --style=ansi',
-})
-
-vim.api.nvim_create_autocmd({'FileType'},
-{pattern = {'c'},
-command = 'noremap <F8> gggqG',
-})
-
-vim.api.nvim_create_autocmd({'FileType'},
-{pattern = {'html'},
-command = 'noremap <F8> :silent %!tidy -q -i --show-errors 0 <CR>',
-})
-
-vim.api.nvim_create_autocmd({'FileType'},
-{pattern = {'java'},
-command = 'setlocal formatprg=astyle --indent=spaces=2 --style=google',
-})
-
-vim.api.nvim_create_autocmd({'FileType'},
-{pattern = {'java'},
-command = 'noremap <F8> gggqG',
-})
-
-vim.api.nvim_create_autocmd({'FileType'},
-{pattern = {'markdown'},
-command = 'noremap <F8> :silent %!prettier --stdin-filepath % <CR>',
-})
-
-vim.api.nvim_create_autocmd({'FileType'},
-{pattern = {'nim'},
-command = 'noremap <F8> :silent !nimpretty %<CR>',
-})
-
-vim.api.nvim_create_autocmd({'FileType'},
-{pattern = {'nim'},
-command = 'noremap <F8> gggqG',
-})
-
-vim.api.nvim_create_autocmd({'FileType'},
-{pattern = {'python'},
-command = 'setlocal formatprg=autopep8 "%"',
-})
-
-vim.api.nvim_create_autocmd({'FileType'},
-{pattern = {'python'},
-command = 'noremap <F8> gggqG',
-})
-
-vim.api.nvim_create_autocmd({'FileType'},
-{pattern = {'tex', 'latex'},
-command = 'setlocal formatprg=latexindent',
-})
-
-vim.api.nvim_create_autocmd({'FileType'},
-{pattern = {'tex', 'latex'},
-command = 'noremap <F8> gggqG',
-})
-
 -- cleanup certain files after leaving the editor
 vim.api.nvim_create_autocmd({'VimLeave'},
 {pattern = {'*.c'},