![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to fadu.py CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [CSRG BSD Unix] / 43BSDReno / contrib / isode-beta / ftam|
Return to fadu.py CVS log | Up to [CSRG BSD Unix] / 43BSDReno / contrib / isode-beta / ftam |
1.1 root 1: -- fadu.py - FTAM file-access-data-unit definitions
2: -- lifted directly from ISO8571-2
3: --
4: -- Two kinds of changes to the ASN.1
5: -- - more commentary-tags for POSY
6: -- - Node-Name must be string-valued
7:
8: -- $Header: /f/osi/ftam/RCS/fadu.py,v 7.0 89/11/23 21:53:15 mrose Rel $
9: --
10: --
11: -- $Log: fadu.py,v $
12: -- Revision 7.0 89/11/23 21:53:15 mrose
13: -- Release 6.0
14: --
15:
16: --
17: -- NOTICE
18: --
19: -- Acquisition, use, and distribution of this module and related
20: -- materials are subject to the restrictions of a license agreement.
21: -- Consult the Preface in the User's Manual for the full terms of
22: -- this agreement.
23: --
24: --
25:
26:
27: --* ISO8571-FADU *-- FADU DEFINITIONS ::=
28:
29: %{
30: #ifndef lint
31: static char *rcsid = "$Header: /f/osi/ftam/RCS/fadu.py,v 7.0 89/11/23 21:53:15 mrose Rel $";
32: #endif
33: %}
34:
35: BEGIN
36:
37: Subtree ::=
38: SEQUENCE {
39: node
40: Node-Descriptor-Data-Element,
41:
42: data[0]
43: IMPLICIT DU
44: OPTIONAL,
45: -- present if and only if a DU is connected to the node
46:
47: children[1]
48: IMPLICIT Children
49: OPTIONAL
50: -- a leaf node is characterized by having no children
51: }
52:
53: Children ::=
54: SEQUENCE {
55: enter-subtree
56: Enter-Subtree-Data-Element,
57:
58: subtree --* *--
59: SEQUENCE OF
60: Subtree,
61: -- subtrees must appear in their proper order according to
62: -- their proper ordering as children of their parent node
63:
64: exit-subtree
65: Exit-Subtree-Data-Element
66: }
67:
68: DU ::=
69: SEQUENCE OF
70: --* ISO8571-CONTENTS *-- CONT.File-Contents-Data-Element
71:
72: Node-Descriptor-Data-Element ::=
73: [APPLICATION 0]
74: IMPLICIT SEQUENCE {
75: name
76: Node-Name
77: OPTIONAL,
78: -- present only if the root node of the subtree is a named node
79:
80: arc-length[1]
81: IMPLICIT INTEGER
82: DEFAULT 1,
83: -- used to specify the length of the arc to the root node of
84: -- the subtree from its parent node
85:
86: data-exists[2]
87: IMPLICIT BOOLEAN
88: DEFAULT TRUE
89: -- data-exists = TRUE indicates that a DU is connected to the
90: -- root node of the subtree
91: }
92:
93: Node-Name ::=
94: --* CHOICE { *--
95: --* ftam-coded *-- [0]
96: IMPLICIT GraphicString --* , *--
97: -- when ftam-coded is used, the Node-Name belongs to the same
98: -- abstract syntax as the structuring information. Node-Names
99: -- are then transferred in the presentatino context established
100: -- to support the FTAM FADU abstract syntax. This form of
101: -- Node-Name is only allowed when the content type file
102: -- attribute contains a document type name. To support this
103: -- alternative, at least the G0 character set registered in
104: -- character set register entry 2 shall be supported.
105:
106: --* user-coded *--
107: --* EXTERNAL *--
108: -- the actual types allowed are found in the abstract syntax
109: -- for the files contents, as specified in the contents type
110: -- file attribute for the file
111: --* } *--
112:
113: Enter-Subtree-Data-Element ::=
114: [APPLICATION 1]
115: IMPLICIT NULL
116:
117: Exit-Subtree-Data-Element ::=
118: [APPLICATION 2]
119: IMPLICIT NULL
120: -- the enter-subtree and exit-subtree data elements are used to bracket
121: -- the list of subtrees, which are children of the preceding node
122:
123: FADU ::=
124: Subtree
125:
126: Structuring-Data-Element ::=
127: CHOICE {
128: node-descriptor --* *--
129: Node-Descriptor-Data-Element,
130:
131: enter-subtree --* *--
132: Enter-Subtree-Data-Element,
133:
134: exit-subtree --* *--
135: Exit-Subtree-Data-Element
136: }
137:
138: -- Data-Element is defined to be a general data type whose values are
139: --
140: -- a) a value of the ASN.1 type Structuring-Data-Element in the abstract
141: -- syntax "FTAM FADU"; or,
142: --
143: -- b) a value of the ASN.1 type ISO8571-CONTENTS.File-Contents-Data-Element
144: -- in the abstract syntax derived from the contents type file attribute.
145:
146: END
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.