TTY: Implement the menu_search command

When in a menu that allows selecting entries, press ':'
to enter any text. Entries that match the text (via pmatch)
will be toggled.

doc/Guidebook.mn

@@ -2104,7 +2104,7 @@ Implemented by the Amiga, Gem and tty ports.
 Default '<'.
 .lp menu_search
 Menu character accelerator to search for a menu item.
-Implemented by the Amiga, Gem and X11 ports.
+Implemented by the Amiga, Gem, X11 and tty ports.
 Default ':'.
 .lp menu_select_all
 Menu character accelerator to select all items in a menu.

doc/fixes35.0

@@ -1097,6 +1097,7 @@ win32tty: support for 'selectsaved' option for menu of existing save files
 	to choose from at game startup
 tty: add window port routines for saving/restoring message history
 tty: enhanced role, race, &c selection at start of new game
+tty: implement : (menu_search) command
 smartphone: added "Type Cmd" command that allows to type arbitrary commands 
 	using phone keypad
 smartphone: added Q(quiver) command to "Attack" layout

win/tty/wintty.c

@@ -201,6 +201,7 @@ static const char default_menu_cmds[] = {
 	MENU_SELECT_PAGE,
 	MENU_UNSELECT_PAGE,
 	MENU_INVERT_PAGE,
+	MENU_SEARCH,
 	0	/* null terminator */
 };
 
@@ -1228,6 +1229,42 @@ tty_clear_nhwindow(window)
     cw->curx = cw->cury = 0;
 }
 
+
+boolean
+toggle_menu_curr(window, curr, lineno, in_view, counting, count)
+winid window;
+tty_menu_item *curr;
+int lineno;
+boolean in_view, counting;
+long count;
+{
+    if (curr->selected) {
+	if (counting && count > 0) {
+	    curr->count = count;
+	    if (in_view) set_item_state(window, lineno, curr);
+	    return TRUE;
+	} else { /* change state */
+	    curr->selected = FALSE;
+	    curr->count = -1L;
+	    if (in_view) set_item_state(window, lineno, curr);
+	    return TRUE;
+	}
+    } else {	/* !selected */
+	if (counting && count > 0) {
+	    curr->count = count;
+	    curr->selected = TRUE;
+	    if (in_view) set_item_state(window, lineno, curr);
+	    return TRUE;
+	} else if (!counting) {
+	    curr->selected = TRUE;
+	    if (in_view) set_item_state(window, lineno, curr);
+	    return TRUE;
+	}
+	/* do nothing counting&&count==0 */
+    }
+    return FALSE;
+}
+
 STATIC_OVL void
 dmore(cw, s)
     register struct WinDesc *cw;
@@ -1600,6 +1637,33 @@ struct WinDesc *cw;
 		if (cw->how == PICK_ANY)
 		    invert_all(window, page_start, page_end, 0);
 		break;
+	    case MENU_SEARCH:
+		if (cw->how == PICK_NONE) {
+		    tty_nhbell();
+		    break;
+		} else {
+		    char searchbuf[BUFSZ], tmpbuf[BUFSZ];
+		    boolean on_curr_page = FALSE;
+		    int lineno = 0;
+		    tty_getlin("Search for:", tmpbuf);
+		    if (!tmpbuf || tmpbuf[0] == '\033') break;
+		    Sprintf(searchbuf, "*%s*", tmpbuf);
+		    for (curr = cw->mlist; curr; curr = curr->next) {
+			if (on_curr_page) lineno++;
+			if (curr == page_start)
+			    on_curr_page = TRUE;
+			else if (curr == page_end)
+			    on_curr_page = FALSE;
+			if (curr->identifier.a_void && pmatch(searchbuf, curr->str)) {
+			    toggle_menu_curr(window, curr, lineno, on_curr_page, counting, count);
+			    if (cw->how == PICK_ONE) {
+				finished = TRUE;
+				break;
+			    }
+			}
+		    }
+		}
+		break;
 	    default:
 		if (cw->how == PICK_NONE || !index(resp, morc)) {
 		    /* unacceptable input received */
@@ -1618,27 +1682,7 @@ struct WinDesc *cw;
 			curr != page_end;
 			n++, curr = curr->next)
 		    if (morc == curr->selector) {
-			if (curr->selected) {
-			    if (counting && count > 0) {
-				curr->count = count;
-				set_item_state(window, n, curr);
-			    } else { /* change state */
-				curr->selected = FALSE;
-				curr->count = -1L;
-				set_item_state(window, n, curr);
-			    }
-			} else {	/* !selected */
-			    if (counting && count > 0) {
-				curr->count = count;
-				curr->selected = TRUE;
-				set_item_state(window, n, curr);
-			    } else if (!counting) {
-				curr->selected = TRUE;
-				set_item_state(window, n, curr);
-			    }
-			    /* do nothing counting&&count==0 */
-			}
-
+			toggle_menu_curr(window, curr, n, TRUE, counting, count);
 			if (cw->how == PICK_ONE) finished = TRUE;
 			break;	/* from `for' loop */
 		    }