Format counts using user locale

kittens/choose_files/main.go

@@ -19,6 +19,7 @@ import (
 	"github.com/kovidgoyal/kitty/tools/tui/loop"
 	"github.com/kovidgoyal/kitty/tools/tui/readline"
 	"github.com/kovidgoyal/kitty/tools/utils"
+	"golang.org/x/text/message"
 )
 
 var _ = fmt.Print
@@ -204,6 +205,7 @@ type Handler struct {
 	rl               *readline.Readline
 	err_chan         chan error
 	shortcut_tracker config.ShortcutTracker
+	msg_printer      *message.Printer
 }
 
 func (h *Handler) draw_screen() (err error) {
@@ -734,7 +736,7 @@ func main(_ *cli.Command, opts *Options, args []string) (rc int, err error) {
 		return 1, err
 	}
 	lp.MouseTrackingMode(loop.FULL_MOUSE_TRACKING)
-	handler := Handler{lp: lp, err_chan: make(chan error, 8)}
+	handler := Handler{lp: lp, err_chan: make(chan error, 8), msg_printer: message.NewPrinter(utils.LanguageTag())}
 	handler.rl = readline.New(lp, readline.RlInit{
 		Prompt: "> ", ContinuationPrompt: ". ", Completer: handler.complete_save_prompt,
 	})

kittens/choose_files/results.go

@@ -248,7 +248,7 @@ func (h *Handler) draw_num_of_matches(num_shown, y int) {
 	case 0:
 		m = " no matches "
 	default:
-		m = fmt.Sprintf(" %d of %d matches ", min(num_shown, h.state.last_render.num_matches), h.state.last_render.num_matches)
+		m = fmt.Sprintf(" %d of %s matches ", min(num_shown, h.state.last_render.num_matches), h.msg_printer.Sprint(h.state.last_render.num_matches))
 	}
 	w := int(math.Ceil(float64(wcswidth.Stringwidth(m)) / 2.0))
 	h.lp.MoveCursorTo(h.screen_size.width-w-2, y)

tools/utils/misc.go

@@ -15,6 +15,7 @@ import (
 	"sync"
 
 	"golang.org/x/exp/constraints"
+	"golang.org/x/text/language"
 )
 
 var _ = fmt.Print
@@ -397,3 +398,28 @@ func Abs[T constraints.Integer](x T) T {
 	}
 	return x
 }
+
+var LanguageTag = sync.OnceValue(func() language.Tag {
+	// Check environment variables in order of precedence
+	var locale string
+	for _, v := range []string{"LC_ALL", "LC_MESSAGES", "LANG"} {
+		locale = os.Getenv(v)
+		if locale != "" {
+			break
+		}
+	}
+	if locale == "" {
+		return language.English // Default/fallback
+	}
+	// Remove encoding, e.g., ".UTF-8"
+	locale = strings.Split(locale, ".")[0]
+	// Replace underscore with hyphen to match BCP47 format (en_US -> en-US)
+	locale = strings.ReplaceAll(locale, "_", "-")
+	// Validate/normalize with golang.org/x/text/language
+	tag, err := language.Parse(locale)
+	if err != nil {
+		return language.English
+	}
+	return tag
+
+})