53 lines
1.7 KiB
Lua
53 lines
1.7 KiB
Lua
-- Neovim preview for Luma files.
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--
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-- Set LUMA_MARKDOWN_BIN to the path of the generated executable, or make
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-- luma_markdown available on PATH:
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-- export LUMA_MARKDOWN_BIN="$PWD/luma_markdown"
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local preview_buf = nil
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local preview_win = nil
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local function update_luma_preview()
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local src_buf = vim.api.nvim_get_current_buf()
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local lines = vim.api.nvim_buf_get_lines(src_buf, 0, -1, false)
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local cmd = vim.env.LUMA_MARKDOWN_BIN or "luma_markdown"
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local output = vim.fn.systemlist(cmd, lines)
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if not preview_buf or not vim.api.nvim_buf_is_valid(preview_buf) then
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preview_buf = vim.api.nvim_create_buf(false, true)
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vim.api.nvim_buf_set_option(preview_buf, "buftype", "nofile")
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vim.api.nvim_buf_set_option(preview_buf, "bufhidden", "hide")
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vim.api.nvim_buf_set_option(preview_buf, "swapfile", false)
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vim.api.nvim_buf_set_option(preview_buf, "filetype", "markdown")
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end
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vim.api.nvim_buf_set_lines(preview_buf, 0, -1, false, output)
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if not preview_win or not vim.api.nvim_win_is_valid(preview_win) then
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vim.cmd "rightbelow vsplit"
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preview_win = vim.api.nvim_get_current_win()
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vim.api.nvim_win_set_buf(preview_win, preview_buf)
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local src_win = vim.fn.bufwinid(src_buf)
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if src_win ~= -1 then vim.api.nvim_set_current_win(src_win) end
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end
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end
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vim.api.nvim_create_autocmd("BufWritePost", {
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pattern = "*.luma",
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callback = update_luma_preview,
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})
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vim.api.nvim_create_user_command("LumaPreview", update_luma_preview, {})
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local timer = nil
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local function debounced_update()
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if timer then timer:stop() end
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timer = vim.defer_fn(update_luma_preview, 150)
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end
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vim.api.nvim_create_autocmd({ "TextChanged", "TextChangedI" }, {
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pattern = "*.luma",
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callback = debounced_update,
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})
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