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LazyVim/lua/lazyvim/util/mini.lua

113 lines
3.4 KiB
Lua

---@class lazyvim.util.mini
local M = {}
---@alias Mini.ai.loc {line:number, col:number}
---@alias Mini.ai.region {from:Mini.ai.loc, to:Mini.ai.loc}
-- Mini.ai indent text object
-- For "a", it will include the non-whitespace line surrounding the indent block.
-- "a" is line-wise, "i" is character-wise.
function M.ai_indent(ai_type)
local spaces = (" "):rep(vim.o.tabstop)
local lines = vim.api.nvim_buf_get_lines(0, 0, -1, false)
local indents = {} ---@type {line: number, indent: number, text: string}[]
for l, line in ipairs(lines) do
if not line:find("^%s*$") then
indents[#indents + 1] = { line = l, indent = #line:gsub("\t", spaces):match("^%s*"), text = line }
end
end
local ret = {} ---@type (Mini.ai.region | {indent: number})[]
for i = 1, #indents do
if i == 1 or indents[i - 1].indent < indents[i].indent then
local from, to = i, i
for j = i + 1, #indents do
if indents[j].indent < indents[i].indent then
break
end
to = j
end
from = ai_type == "a" and from > 1 and from - 1 or from
to = ai_type == "a" and to < #indents and to + 1 or to
ret[#ret + 1] = {
indent = indents[i].indent,
from = { line = indents[from].line, col = ai_type == "a" and 1 or indents[from].indent + 1 },
to = { line = indents[to].line, col = #indents[to].text },
}
end
end
return ret
end
-- taken from MiniExtra.gen_ai_spec.buffer
function M.ai_buffer(ai_type)
local start_line, end_line = 1, vim.fn.line("$")
if ai_type == "i" then
-- Skip first and last blank lines for `i` textobject
local first_nonblank, last_nonblank = vim.fn.nextnonblank(start_line), vim.fn.prevnonblank(end_line)
-- Do nothing for buffer with all blanks
if first_nonblank == 0 or last_nonblank == 0 then
return { from = { line = start_line, col = 1 } }
end
start_line, end_line = first_nonblank, last_nonblank
end
local to_col = math.max(vim.fn.getline(end_line):len(), 1)
return { from = { line = start_line, col = 1 }, to = { line = end_line, col = to_col } }
end
-- register all text objects with which-key
function M.ai_whichkey()
---@type table<string, string|table>
local i = {
[" "] = "Whitespace",
['"'] = 'Balanced "',
["'"] = "Balanced '",
["`"] = "Balanced `",
["("] = "Balanced (",
[")"] = "Balanced ) including white-space",
[">"] = "Balanced > including white-space",
["<lt>"] = "Balanced <",
["]"] = "Balanced ] including white-space",
["["] = "Balanced [",
["}"] = "Balanced } including white-space",
["{"] = "Balanced {",
["?"] = "User Prompt",
_ = "Underscore",
a = "Argument",
b = "Balanced ), ], }",
c = "Class",
d = "Digit(s)",
e = "Word in CamelCase & snake_case",
f = "Function",
g = "Entire file",
i = "Indent",
o = "Block, conditional, loop",
q = "Quote `, \", '",
t = "Tag",
u = "Use/call function & method",
U = "Use/call without dot in name",
}
local a = vim.deepcopy(i)
for k, v in pairs(a) do
a[k] = v:gsub(" including.*", "")
end
local ic = vim.deepcopy(i)
local ac = vim.deepcopy(a)
for key, name in pairs({ n = "Next", l = "Last" }) do
i[key] = vim.tbl_extend("force", { name = "Inside " .. name .. " textobject" }, ic)
a[key] = vim.tbl_extend("force", { name = "Around " .. name .. " textobject" }, ac)
end
require("which-key").register({
mode = { "o", "x" },
i = i,
a = a,
})
end
return M