Example: Replace invalid chars

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public static int main (string[] args) {
	string str = "glib-2.0";
	// Output: ``?????2.0``
	str.canon ("0123456789.", '?');
	print ("%s\n", str);
	return 0;
}

 valac --pkg glib-2.0 string.canon.vala

See:

• string.canon

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