67 lines
1.9 KiB
Lua
67 lines
1.9 KiB
Lua
local ns = vim.api.nvim_create_namespace("weird-chars")
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local weird_chars = {
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["–"] = "en dash found, consider using regular hyphen (-)",
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["—"] = "em dash found, consider using regular hyphen (-)",
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["“"] = 'left double quote found, consider using straight quote (")',
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["”"] = 'right double quote found, consider using straight quote (")',
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["‘"] = "left single quote found, consider using straight quote (')",
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["’"] = "right single quote found, consider using straight quote (')",
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["•"] = "bullet found, consider using regular asterisk (*)",
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["·"] = "middle dot found",
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[" "] = "full-width space found, consider using regular space",
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}
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local function check_weird_chars()
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local bufnr = vim.api.nvim_get_current_buf()
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local lines = vim.api.nvim_buf_get_lines(bufnr, 0, -1, false)
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local diagnostics = {}
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for linenr, line in ipairs(lines) do
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local i = 1
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while i <= #line do
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local b = line:byte(i)
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local char
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-- Check for UTF-8 multi-byte sequences
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if b >= 0xE2 and b <= 0xEF then
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-- Likely a 3-byte UTF-8 sequence
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char = line:sub(i, i + 2)
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i = i + 3
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elseif b >= 0xC2 and b <= 0xDF then
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-- Likely a 2-byte UTF-8 sequence
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char = line:sub(i, i + 1)
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i = i + 2
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else
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-- Single byte character
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char = line:sub(i, i)
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i = i + 1
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end
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if weird_chars[char] then
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table.insert(diagnostics, {
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bufnr = bufnr,
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lnum = linenr - 1,
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col = i - #char - 1,
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message = weird_chars[char],
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severity = vim.diagnostic.severity.WARN,
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})
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end
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end
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end
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vim.diagnostic.set(ns, bufnr, diagnostics)
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end
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-- Create autocommand group
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local group = vim.api.nvim_create_augroup("WeirdChars", { clear = true })
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-- Set up autocommands
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vim.api.nvim_create_autocmd({ "BufEnter", "BufWritePost", "TextChanged", "InsertLeave" }, {
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group = group,
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callback = check_weird_chars,
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})
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-- Create commands for manual checking
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vim.api.nvim_create_user_command("CheckWeirdChars", check_weird_chars, {})
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