add note back into the standard library

lib/std.lua

@@ -127,4 +127,57 @@ M.file = function(text, url)
 	end
 end
 
+M.note = function(text)
+	text = text or ""
+	if isHttp() then
+		return "<div class=\"note\">" .. esc(text) .. "</div>"
+	elseif isGemini() then
+		local width = 31
+
+		local function wrap_line(line)
+			local out = {}
+			local i = 1
+			local len = #line
+
+			if len == 0 then
+				out[#out + 1] = ""
+				return out
+			end
+
+			while i <= len do
+				out[#out + 1] = line:sub(i, i + width - 1)
+				i = i + width
+			end
+
+			return out
+		end
+
+		local lines = {}
+
+		for line in (text .. "\n"):gmatch("(.-)\n") do
+			local wrapped = wrap_line(line)
+			for _, w in ipairs(wrapped) do
+				lines[#lines + 1] = w
+			end
+		end
+
+		local border = "+" .. string.rep("=", width + 2) .. "+"
+		local empty = "|" .. string.rep(" ", width + 2) .. "|"
+
+		local out = {}
+		out[#out + 1] = border
+		out[#out + 1] = empty
+
+		for _, line in ipairs(lines) do
+			local padding = width - #line
+			out[#out + 1] = "| " .. line .. string.rep(" ", padding) .. " |"
+		end
+
+		out[#out + 1] = empty
+		out[#out + 1] = border
+
+		return table.concat(out, "\n")
+	end
+end
+
 return M