class org.eclipse.jface.text.rules.RuleBasedScanner (implements org.eclipse.jface.text.rules.ICharacterScanner, org.eclipse.jface.text.rules.ITokenScanner)
class org.eclipse.jface.text.rules.BufferedRuleBasedScanner
class org.eclipse.jface.text.rules.RuleBasedPartitionScanner (implements org.eclipse.jface.text.rules.IPartitionTokenScanner)