default feature control macros

samples/static_site_generator/example_site/generated/site.js

@@ -0,0 +1,61 @@
+function StringFitsFilter(str, filter)
+{
+	let match = true;
+	let filter_upper = filter.toUpperCase();
+	let filter_substrings = filter_upper.split(/[ _*]+/);
+	let str_upper = str.toUpperCase();
+	let minimum_index = 0;
+
+	for(let i = 0; i < filter_substrings.length; ++i)
+	{
+		if(filter_substrings[i].length > 0)
+		{
+			let index_of_substring = str_upper.indexOf(filter_substrings[i], minimum_index);
+			if(index_of_substring < 0 || index_of_substring < minimum_index)
+			{
+				match = false;
+				break;
+			}
+			minimum_index = index_of_substring + filter_substrings[i].length - 1;
+		}
+	}
+
+	return match;
+}
+
+function UpdateListByFilter(menu_id, filter_id)
+{
+	let ul = document.getElementById(menu_id);
+	let li = ul.getElementsByTagName("li");
+	let input = document.getElementById(filter_id);
+	let filter = input.value.toUpperCase();
+	for(let i = 0; i < li.length; i++)
+	{
+		if(filter.length > 0)
+		{
+			let a = li[i].getElementsByTagName("a")[0];
+			if(StringFitsFilter(a.innerHTML, filter))
+			{
+				li[i].style.display = "";
+			}
+			else
+			{
+			    li[i].style.display = "none";
+			}
+		}
+		else
+		{
+			li[i].style.display = "";
+		}
+	}
+}
+
+function SearchInput(event, lister_idx)
+{
+	UpdateListByFilter("lister_"+lister_idx, "lister_search_"+lister_idx);
+}
+
+function SearchKeyDown(event, lister_idx)
+{
+	UpdateListByFilter("lister_"+lister_idx, "lister_search_"+lister_idx);
+}