feat: add smart-filter and jump-to-char plugins

jump-to-char.yazi/init.lua

@@ -0,0 +1,27 @@
+local AVAILABLE_CHARS = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+
+local changed = ya.sync(function(st, new)
+	local b = st.last ~= new
+	st.last = new
+	return b
+end)
+
+return {
+	entry = function()
+		local cands = {}
+		for i = 1, #AVAILABLE_CHARS do
+			cands[#cands + 1] = { on = AVAILABLE_CHARS:sub(i, i) }
+		end
+
+		local idx = ya.which { cands = cands, silent = true }
+		if not idx then
+			return
+		end
+
+		if changed(cands[idx].on) then
+			ya.manager_emit("find_do", { insensitive = true, "^" .. cands[idx].on })
+		else
+			ya.manager_emit("find_arrow", {})
+		end
+	end,
+}