feat(ui): translate="no", and a title of several lines translated whole or line by line

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

packages/ludic.ui/backend.ludic

@@ -26,7 +26,9 @@ function ui_px(v: float) -> float {
   if ui_be != null and ui_be.scale != null { return v * ui_be.scale() }
   return v
 }
+var tr_no: bool = false        # inside translate="no" while a frame is built
 function ui_tr(s: string) -> string {
+  if tr_no { return s }
   if ui_be != null and ui_be.translate != null { return ui_be.translate(s) }
   return s
 }

packages/ludic.ui/elem.ludic

@@ -24,10 +24,14 @@ function bd_elem(k: UiTpl, e: UiEnv, key: string) -> UiNode {
     if k.on_keys[i] == "press" { n.act = k.on_acts[i] }
   }
   lc_note(key, k.on_keys, k.on_acts, e)
+  let was_no = tr_no
+  let say = ui_attr_text(n, "translate")
+  if say == "no" { tr_no = true } else if say == "yes" { tr_no = false }
   bd_kids(k.kids, e, key, n.children)
   if k.text != null { el_text(n, ui_tr(ui_eval_text(k.text, e))) }
   el_inline(n)
   if k.tag == "input" or k.tag == "select" or k.tag == "progress" or k.tag == "meter" { ct_build(n) }
+  tr_no = was_no
   return n
 }
 function el_kind(n: UiNode, tag: string) -> void {

packages/ludic.ui/index.ludic

@@ -30,6 +30,7 @@ import "popover.ludic"
 import "popover_anchor.ludic"
 import "popover_within.ludic"
 import "tooltip.ludic"
+import "tooltip_text.ludic"
 import "life.ludic"
 import "tpl.ludic"
 import "tpl_lines.ludic"

packages/ludic.ui/tooltip.ludic

@@ -16,7 +16,7 @@ function tt_track(scope: UiNode, x: float, y: float) -> void {
     tt_key = n.key
     tt_since = an_now()
   }
-  tt_text = ui_tr(ui_attr_text(n, "title"))
+  tt_text = tt_translate(n, ui_attr_text(n, "title"))
   tt_x = x
   tt_y = y
 }

packages/ludic.ui/tooltip_text.ludic

@@ -0,0 +1,18 @@
+# tooltip_text.ludic - a title in the program's language: the whole of it when the translator knows
+# it, else line by line; and not at all inside translate="no" (the nearest translate= out from it)
+function tt_translate(n: UiNode, s: string) -> string {
+  var at = n
+  while at != null {
+    let say = ui_attr_text(at, "translate")
+    if say == "no" { return s }
+    if say == "yes" { break }
+    at = at.parent
+  }
+  let whole = ui_tr(s)
+  if whole != s { return whole }
+  let lines = tt_lines(s)
+  if len(lines) < 2 { return whole }
+  var out = ui_tr(lines[0])
+  for i in 1 .. len(lines) { out = out + "\n" + ui_tr(lines[i]) }
+  return out
+}