9.1 Regular Expressions

      9.1.1 Regexp Patterns

      9.1.2 Regexp Character Sets

      9.1.3 Regexp Objects

      9.1.4 Regexp Match Results

    9.2 Runtime

    9.3 Measure

    9.4 Runtime Paths

    9.5 Random Number Generation

    9.6 Unsafe Mode

    9.7 Documentation Metadata