1 Scope
2 Conformance
3 Normative references
4 Notational conventions
5 Entering and leaving the metafile environment
      5.1 Generic clear text and instantiations
      5.2 Implicitly entering the metafile environment
      5.3 Designating and invoking the CGM coding
             environment from ISO 2022
6 Metafile format
      6.1 Character repertoire
      6.2 Separators
             6.2.1 Element separators
             6.2.2 Parameter separators
             6.2.3 Comments in the metafile
      6.3 Encoding of parameter types
             6.3.1 Integer-bound types
             6.3.2 Real-bound types
             6.3.3 String-bound types
             6.3.4 Enumerated types
             6.3.5 Derived types
             6.3.6 Bitstream datatype
             6.3.7 Structured data record operands
      6.4 Forming names
             6.4.1 Words deleted
             6.4.2 Words added
             6.4.3 Words used unabbreviated
             6.4.4 Abbreviations
             6.4.5 The derived element names
7 Encoding the CGM elements
      7.1 Encoding delimiter elements
      7.2 Encoding metafile descriptor elements
      7.3 Encoding picture descriptor elements
      7.4 Encoding control elements
      7.5 Encoding graphical primitive elements
      7.6 Encoding attribute elements
      7.7 Encoding escape elements
      7.8 Encoding external elements
      7.9 Encoding segment control and segment attribute
             elements
      7.10 Encoding application structure descriptor
             elements
8 Clear text encoding defaults
9 Profile encoding rules, proforma, and Model Profile
      9.1 Encodings
      9.2 Metafile defaults
      9.3 Profile Proforma tables (PPF)
Annex A (normative) - Clear text encoding dependent
                      format grammar
Annex B (informative) - Clear text encoding example