Clean up signs when reading

includes/misc.h

@@ -44,6 +44,8 @@ void strlist_free(struct strlist **list);
 
 void save_presets(int do_update);
 
+void clean_text(char *text, int vwidth);
+
 void load_presets(void);
 
 void save_string(FILE *f, char *str);

src/main.c

@@ -1036,6 +1036,7 @@ int parse_save(void *save, int size, int replace, int x0, int y0, unsigned char
 		{
 			memcpy(signs[k].text, d+p, x);
 			signs[k].text[x] = 0;
+			clean_text(signs[k].text, 158-14 /* Current max sign length */);
 		}
 		p += x;
 	}

src/misc.c

@@ -99,6 +99,19 @@ void strlist_free(struct strlist **list)
 	}
 }
 
+void clean_text(char *text, int vwidth)
+{
+	int i = 0;
+	if(textwidth(text) > vwidth){
+		text[textwidthx(text, vwidth)] = 0;	
+	}
+	for(i = 0; i < strlen(text); i++){
+		if(! (text[i]>=' ' && text[i]<127)){
+			text[i] = ' ';
+		}
+	}
+}
+
 void save_presets(int do_update)
 {
 	FILE *f=fopen("powder.def", "wb");