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home/nvim: add more comments

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This commit is contained in:
chayleaf 2023-03-15 17:43:16 +07:00
parent e74887723f
commit d341d8f8f9
2 changed files with 102 additions and 24 deletions
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119
home/common/nvim/default.nix
View file

@ -11,15 +11,27 @@
au BufReadPost * folddoc foldopen!
autocmd BufReadPost * if @% !~# '\.git[\/\\]COMMIT_EDITMSG$' && line("'\"") > 1 && line("'\"") <= line("$") | exe "normal! g`\"" | endif
*/
# welcome to my cursed DSL
programs.neovim = let
# a cursed DSL
# add a single ident level to code
identLines = lines: builtins.concatStringsSep "\n" (map (x: " ${x}") lines);
ident = code: identLines (lib.splitString "\n" code);
# wrap an expression in parentheses if necessary
# probably not the best heuristics, but good enough to make the output readable
wrapSafe = s: (builtins.match "^[-\"a-zA-Z0-9_.()]*$" s) != null;
wrapExpr = s: if wrapSafe s then s else "(${s})";
# Same, but for table keys
keySafe = s: (builtins.match "^[a-zA-Z_][_a-zA-Z0-9]*$" s) != null;
wrapKey = scope: s: if keySafe s then s else "[${compileExpr scope s}]";
# The following functions take state: sname and scope
# sname is module name
# scope is how many variables are currently in scope
# the count is used for generating new variable names
compileFunc' = argn: sc@{sname,scope}: id: func:
(if builtins.isFunction func
then
@ -39,6 +51,7 @@
${ident (compileStmt {inherit sname;scope = scope + argn;} func)}
end'');
compileFunc = compileFunc' 0;
compileExpr = sc: func: (
if builtins.isString func then
if lib.hasInfix "\n" func then ''
@ -79,6 +92,7 @@
"${wrapExpr (compileExpr sc func.table)}[${compileExpr sc func.key}]"
else null
);
compileStmt = sc@{sname,scope}: func: (
if builtins.isList func then builtins.concatStringsSep "\n" (map (compileStmt sc) func)
else if builtins.isAttrs func && (func?__kind) then (
@ -138,36 +152,90 @@
else compileExpr sc func
) else compileExpr sc func
);
compile = sname: compileStmt {inherit sname;scope=1;};
# compile a module
compile = sname: input: (compileStmt {inherit sname;scope=1;} input) + "\n";
# pass some raw code to lua directly
var = name: { __kind = "var"; _name = name; };
raw = var;
# Access a property
# Corresponding lua code: table.property
# expr -> identifier -> expr
prop = expr: name: { __kind = "prop"; inherit expr name; };
# Call a function
# corresponding lua code: someFunc()
# expr -> [args] -> expr | expr -> arg1 -> expr
call = func: args: { __kind = "call"; inherit func args; };
# Call a method
# corresponding lua code: someTable:someFunc()
# expr -> identifier -> [args] -> expr | expr -> identifier -> arg1 -> expr
mcall = val: name: args: { __kind = "mcall"; inherit val name args; };
setup = plugin: opts: call (prop plugin "setup") [ opts ];
require = name: call (var "require") [ name ];
# corresponding lua code: =
# expr -> expr -> stmt
set = expr: val: { __kind = "assign"; inherit expr val; };
# opName -> expr1 -> expr2 -> expr | opName -> [exprs] -> expr
op2 = op: args:
if builtins.isList args then { __kind = "op2"; inherit op args; }
else (secondArg: { __kind = "op2"; inherit op; args = [ args secondArg ]; })
;
# The following all have the signature
# expr1 -> expr2 -> expr2 | [exprs] -> expr
eq = op2 "==";
# forin = n: expr: body: { __kind = "for"; inherit n expr body; };
# gt = op2 ">";
# ge = op2 ">=";
# ne = op2 "~=";
# and = op2 "and";
# or = op2 "or";
# Corresponding lua code: for
# argc -> expr -> (expr1 -> ... -> exprN -> stmts) -> stmts
# forin = n: expr: body: { __kind = "for"; inherit n expr body; };
# Issues a return statement
# Corresponding lua code: return
# expr -> stmt
return = expr: { __kind = "return"; inherit expr; };
# Creates a zero argument function with user-provided statements
# stmts -> expr
defun = func: { __kind = "defun"; inherit func; };
# Corresponding lua code: if then else
# [[cond expr]] -> fallbackExpr -> stmts
ifelse = conds: fallback: { __kind = "if"; inherit fallback; conds = if builtins.isList (builtins.elemAt conds 0) then conds else [conds]; };
# Corresponding lua code: if then
# [[cond expr]] -> > stmts
# ifnoelse = conds: ifelse conds null;
# Corresponding lua code: table[key]
# table -> key -> expr
tableAttr = table: key: { __kind = "tableAttr"; inherit table key; };
# Directly creates a local varible with your chosen name
# But why would you use this???
# bind' = name: val: { __kind = "bind"; inherit name val; };
# Creates variables and passes them to the function
# Corresponding lua code: local ... = ...
# [expr] -> (expr1 -> ... -> exprN -> stmt) -> stmt
bind = vals: func: if builtins.isList vals then { __kind = "let"; inherit vals func; } else bind [ vals ] func;
# Creates variables and passes them to the function as well as variable binding code
# Corresponding lua code: local ... = ...
# [(expr1 -> ... -> exprN -> expr)] -> (expr1 -> ... -> exprN -> stmt) -> stmt
bindrec = vals: func: if builtins.isList vals then { __kind = "letrec"; inherit vals func; } else bindrec [ vals ] func;
# "type definitions" for neovim
defs = pkgs.callPackage ./vim-opts.nix { inherit raw call; };
in with defs; let
# bind' = name: val: { __kind = "bind"; inherit name val; };
require = name: call (var "require") [ name ];
setup = plugin: opts: call (prop plugin "setup") [ opts ];
# vimfn = name: call (raw "vim.fn.${name}");
vimcmd = name: call (raw "vim.cmd.${name}");
keymapSetSingle = opts@{
@ -201,10 +269,10 @@
})) keys) ++ [
(call (prop (require "which-key") "register") [(lib.mapAttrs (k: v: [v.rhs v.desc]) keys) opts'])
];
keymapSetN = args: keymapSetSingle (args // { mode = "n"; });
keymapSetV = args: keymapSetSingle (args // { mode = "v"; });
keymapSetNs = args: keymapSetMulti (args // { mode = "n"; });
kmSetNs = keys: keymapSetNs { inherit keys; };
keymapSetVs = args: keymapSetMulti (args // { mode = "v"; });
kmSetVs = keys: keymapSetVs { inherit keys; };
in {
enable = true;
defaultEditor = true;
@ -242,10 +310,10 @@
) [
{ event = "FileType";
pattern = ["markdown" "gitcommit"];
callback = defun (set vim.o.colorcolumn 73); }
callback = defun (set vim.o.colorcolumn "73"); }
{ event = "FileType";
pattern = ["markdown"];
callback = defun (set vim.o.textwidth 72); }
callback = defun (set vim.o.textwidth "72"); }
{ event = "BufReadPre";
callback = defun (set vim.o.foldmethod "syntax"); }
{ event = "BufWinEnter";
@ -312,10 +380,11 @@
(set vim.g.loaded_netrwPlugin 1)
(set vim.opt.termguicolors true)
(setup (require "nvim-tree") {}) # :help nvim-tree-setup
(keymapSetN {
lhs = "<C-N>";
rhs = prop (require "nvim-tree.api") "tree.toggle";
desc = "Toggle NvimTree";
(kmSetNs {
"<C-N>" = {
rhs = prop (require "nvim-tree.api") "tree.toggle";
desc = "Toggle NvimTree";
};
})
]; }
vim-sleuth
@ -332,7 +401,7 @@
[ "╰" name ]
[ "│" name ]
]);
in compile "nvim_cmp" [(bind (require "cmp") (cmp:
in compile "nvim_cmp" (bind (require "cmp") (cmp:
(setup cmp {
snippet = {
expand = args: (call (prop (require "luasnip") "lsp_expand") (prop args "body"));
@ -410,7 +479,7 @@
{ name = "luasnip"; }
]];
})
))]; }
)); }
lspkind-nvim
cmp_luasnip
cmp-nvim-lsp
@ -427,15 +496,17 @@
{ plugin = comment-nvim;
config = compile "comment_nvim" [
(setup (require "Comment") {})
(keymapSetN {
lhs = "<space>/";
rhs = (prop (require "Comment.api") "toggle.linewise.current");
desc = "Comment current line";
(kmSetNs {
"<space>/" = {
rhs = prop (require "Comment.api") "toggle.linewise.current";
desc = "Comment current line";
};
})
(keymapSetV {
lhs = "<space>/";
rhs = "<esc><cmd>lua require('Comment.api').toggle.linewise(vim.fn.visualmode())<cr>";
desc = "Comment current line";
(kmSetVs {
"<space>/" = {
rhs = "<esc><cmd>lua require('Comment.api').toggle.linewise(vim.fn.visualmode())<cr>";
desc = "Comment selection";
};
})
]; }
{ plugin = nvim-lspconfig;

7
home/common/nvim/vim-opts.nix
View file

@ -50,6 +50,13 @@
arity = 1;
value = "vim.cmd";
};
fn = (if v?fn then v.fn else {}) // {
visualmode = {
type = "function";
arity = 0;
value = "vim.fn.visualmode";
};
};
} else v);
in
patch (builtins.mapAttrs (setPath "")