LOCALE command: do not delete orders with incomplete translations

Instead, we let the player fix them from echeck warnings.

src/kernel/faction.c

@@ -836,15 +836,15 @@ faction *faction_create(int no)
     return f;
 }
 
-void change_locale(faction *f, const struct locale *lang) {
+void change_locale(faction *f, const struct locale *lang, bool del ) {
     unit *ux;
     for (ux = f->units; ux; ux = ux->nextF) {
-        translate_orders(ux, lang, &ux->orders);
+        translate_orders(ux, lang, &ux->orders, del);
         if (ux->old_orders) {
-            translate_orders(ux, lang, &ux->old_orders);
+            translate_orders(ux, lang, &ux->old_orders, del);
         }
         if (ux->thisorder) {
-            translate_orders(ux, lang, &ux->thisorder);
+            translate_orders(ux, lang, &ux->thisorder, del);
         }
     }
     f->locale = lang;

src/kernel/faction.h

@@ -155,7 +155,7 @@ extern "C" {
     int count_migrants(const struct faction * f);
     int count_maxmigrants(const struct faction * f);
     int max_magicians(const struct faction * f);
-    void change_locale(struct faction *f, const struct locale *lang);
+    void change_locale(struct faction *f, const struct locale *lang, bool del);
 
 #define MONSTER_ID 666
     struct faction *getfaction(void);

src/kernel/faction.test.c

@@ -167,7 +167,7 @@ static void test_change_locale(CuTest *tc) {
     unit_addorder(u, ord = create_order(K_STUDY, f->locale, skillnames[SK_ENTERTAINMENT]));
     CuAssertIntEquals(tc, SK_ENTERTAINMENT - 100, ord->id);
 
-    change_locale(f, lang);
+    change_locale(f, lang, true);
     CuAssertPtrEquals(tc, lang, (void *)f->locale);
     CuAssertPtrNotNull(tc, u->thisorder);
 

src/kernel/unit.c

@@ -1849,19 +1849,17 @@ void unit_convert_race(unit *u, const race *rc, const char *rcname)
     }
 }
 
-
-void translate_orders(unit *u, const struct locale *lang, order **list)
+bool translate_order(order *ord, const struct locale *from_lang, const struct locale *to_lang)
 {
-    order **po = list;
-    (void)lang;
-    while (*po) {
-        order *ord = *po;
+    (void)to_lang;
+    (void)from_lang;
+
     if (ord->id <= 0) {
-            /* we can keep these, they have no problematic arguments */
-            po = &ord->next;
-            continue;
+        /* no arguments, no translation needed */
+        return true;
     }
     switch (getkeyword(ord)) {
+    case NOKEYWORD:
     case K_ATTACK:
     case K_BANNER:
     case K_DRIVE:
@@ -1878,17 +1876,31 @@ void translate_orders(unit *u, const struct locale *lang, order **list)
     case K_TEACH:
     case K_TRANSPORT:
     case K_URSPRUNG:
-            /* we can keep these, they need no translation */
-            po = &ord->next;
-            break;
-        default:
-            /* we don't know what to do with these, drop them */
+        /* we can keep these, they do not use translated strings */
+        return true;
+    }
+
+    return false;
+}
+
+void translate_orders(unit *u, const struct locale *lang, order **list, bool del)
+{
+    order **po = list;
+    (void)lang;
+    while (*po) {
+        order *ord = *po;
+        if (!translate_order(ord, u->faction->locale, lang)) {
+            /* we don't know what to do with these, drop or keep them? */
+            if (del) {
                 if (u->thisorder == ord) {
                     u->thisorder = NULL;
                 }
                 *po = ord->next;
                 ord->next = NULL;
                 free_order(ord);
+                continue;
             }
         }
+        po = &ord->next;
+    }
 }

src/kernel/unit.h

@@ -223,7 +223,7 @@ extern "C" {
     bool unit_name_equals_race(const struct unit *u);
 
     void unit_convert_race(struct unit *u, const struct race *rc, const char *rcname);
-    void translate_orders(struct unit *u, const struct locale *lang, struct order **list);
+    void translate_orders(struct unit *u, const struct locale *lang, struct order **list, bool del);
 
     /* getunit results: */
 #define GET_UNIT 0

src/laws.c

@@ -4225,13 +4225,14 @@ int locale_cmd(unit * u, order * ord)
     char token[128];
     const char * name;
     faction *f = u->faction;
+    bool del = config_get_int("translate.delete_orders", 0) != 0;
 
     init_order(ord, f->locale);
     name = gettoken(token, sizeof(token));
     if (name) {
         const struct locale *lang = get_locale(name);
         if (lang && lang != f->locale) {
-            change_locale(f, lang);
+            change_locale(f, lang, del);
         }
     }
     return 0;