color collection, now only CSS colors

PIVariantTypes::Color from/to string (with CSS names)

libs/main/text/pistring.cpp

@@ -522,6 +522,27 @@ PIString PIString::simplified() const {
 }
 
 
+PIString & PIString::mask(const PIString & symbols, PIChar mc) {
+	for (int i = 0; i < size_s(); ++i)
+		if (symbols.contains(at(i))) {
+			insert(i, mc);
+			++i;
+		}
+	return *this;
+}
+
+
+PIString & PIString::unmask(const PIString & symbols, const PIChar mc) {
+	for (int i = 0; i < size_s() - 1; ++i)
+		if (at(i) == mc) {
+			if (symbols.contains(at(i + 1))) {
+				remove(i);
+			}
+		}
+	return *this;
+}
+
+
 PIString & PIString::operator +=(const char * str) {
 	if (!str) return *this;
 	appendFromChars(str, -1, __syslocname__);