1、ITU-T RECMN*T*41b 73 - 4862573 0593987 T91 I NTE R NATIONAL TELECOM M U N I CATION UN I ON ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU TELEMATIC SERVICES TERMINAL EQUIPMENTS AND PROTOCOLS FOR TELEMATIC SERVICES T.416 (03/93) INFORMATION TECHNOLOGY - OPEN DOCUMENT ARCHITECTURE (ODA) AND INT
2、ERCHANGE FORMAT: CHARACTER CONTENT ARCHITECTURES ITU-T Recommendation T.416 (Previously “CCITT Recommendation”) ITU-T RECMN*Tm436 93 m 4862.593 0573990 703 U Foreword ITU (International Telecommunication Union) is the United Nations Specialized Agency in the field of telecommunications. The ITU Tele
3、communication Standardization Sector (ITU-T) is a permanent organ of the ITU. Some 179 member countries, 84 telecom operating entities, 145 scientific and industrial organizations and 38 international organizations participate in ITU-T which is the body which sets world telecommunications standards
4、(Recommendations). The approval of Recommendations by the members of ITU-T is covered by the procedure laid down in WTSC Resolution No. 1 (Helsinki, 1993). In addition, the World Telecommunication Standardization Conference (WTSC), which meets every four years, approves Recommendations submitted to
5、it and establishes the study programme for the following period. In some areas of information technology, which fall within ITU-T?s purview, the necessary standards are prepared on a collaborative basis with IS0 and IEC. The text of ITU-T Recommendation T.416 was approved by the WTSC (Helsinki, Marc
6、h 1-12, 1993). The identical text is also published as ISO/IEC International Standard 8613-6. NOTE 1 As a consequence of a reform process within the International Telecommunication Union (ITU), the CCI?IT ceased to exist as of 28 February 1993. In its place, the ITU Telecommunication Standardization
7、 Sector (ITU-T) was created as of 1 March 1993. Similarly, in this reform process, the CCIR and the IFRB have been replaced by the Radiocommunication Sector. In order not to delay publication of this Recommendation, no change has been made in the text to references containing the acronyms ?CCITT, CC
8、IR or IFRB? or their associated entities such as Plenary Assembly, Secretariat, etc. Future editions of this Recommendation will contain the proper terminology related to the new ITU structure. 2 telecommunication administration and a recognized operating agency. In this Recommendation, the expressi
9、on ?Administration? is used for conciseness to indicate both a O ITU 1994 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the IT. ITU-T RECNN
10、*T*41b 93 = 4862591 0593993 b4T Contents Scope Normative references . 2.1 Identical Recommendations I International Standards 2.2 Paired Recommendations I International Standards equivalent in technical content 2.3 Additional references Definitions Abbreviations . Conventions General principles 6.1
11、Content architecture classes 6.2 Content 6.3 Presentation attributes . 6.4 Control functions 6.5 Graphic characters 6.6 Space characters 6.7 Coding of content information 6.8 Internal structure . 6.8.1 Formatted content . 6.8.2 Processable content . 6.8.3 Formatted processable content Character posi
12、tioning . 7.1 Basic concepts . 7.1.1 Character fonts 7.1.2 Directions 7.1.4 Character spacing 7.1.5 Active position 7.1.6 Positioning area . 7.1.7 Line boxes . Positioning of character images within a line box 7.2.1 Spacing between characters 7.2.2 Alignment . 7.2.3 Tabulation . 7.2.4 Character orde
13、ring 7.2.5 Parallel annotation 7.2.7 Pairwise kerning 7.2.8 First line offset 7.2.9 Itemization 7.3 Positioning of line boxes within a basic layout object Character imaging 8.1 Emphasis . 8.1.1 Weight . 8.1.2 Posture 8.1.3 Underlining . 8.1.4 Blinking 7.1.3 Character image model . 7.2 7.2.6 Subscrip
14、Jsuperscript . ITU-T RW . T.416 (1993 E) Page 1 2 2 2 2 2 3 3 3 3 4 4 4 5 5 5 5 5 5 6 6 6 6 7 7 9 9 9 9 10 11 12 12 12 14 15 15 15 15 15 17 18 18 18 18 19 i - . ITU-T RECMN*T.4Lb 93 4862591 0593992 5Bb 9 10 11 12 13 U 8.1.5 Image inversion . 8.1.6 Crossing-out 8.1.7 Colour . 8.2 Font selection 8.2.1
15、 Font specification 8.2.3 Font invocation . 8.3 Subscript and superscript 8.4 Character combinations . Definition of character presentation attributes . 8.2.2 Font designation 9.1 9.2 9.3 9.4 9.5 Shared presentation attributes . 9.1.1 Alignment . 9.1.2 Character fonts 9.1.3 Character orientation . 9
16、.1.5 Character spacing 9.1.6 Code extension announcers . 9.1.7 First line offset 9.1.8 Graphic character sets . 9.1.9 Graphic character subrepertoire 9.1.10 Graphic rendition 9.1.1 1 Itemization 9.1.13 Line layout table . 9.1.14 Line progression 9.1.15 Line spacing 9.1.16 Pairwise kerning Layout pre
17、sentation attributes . 9.2.1 Formatting indicator 9.2.2 Initial offset . Logical presentation attributes 9.3.1 Indentation 9.3.2 Orphan size . 9.3.3 Proportional line spacing 9.3.4 Widow size Content architecture class attributes 9.4.1 Content architecture class . Interactions between presentation a
18、ttributes and layout directives . 9.1.4 Character path . 9.1.12 Kerning offset . Character content portion attributes . 10.2 other coding attributes 10.3 Content information Formal definitions of character content architecture dependent data types . 11 . 1 Introduction . 1 1.2 Representation of pres
19、entation attributes 11.3 Representation of coding attributes . 1 1.4 Representation of non-basic features and non-standard defaults Graphic Characters . Definition of control functions and the character SPACE . 13.1 Shared control functions . Graphic Character Composition (GCC) 10.1 Common coding at
20、tributes 13.1.1 Carriage Return (CR) 13.1.2 ITU-T Rec . T.416 (1993 E) Page 19 19 19 21 21 21 21 21 22 22 23 23 23 24 24 24 24 25 25 25 26 26 27 27 28 28 28 28 28 29 29 29 30 30 30 31 31 31 31 31 31 31 32 32 32 35 35 36 36 37 37 38 ITU-T RECMN*T-41b 93 m 4862571 0593993 412 m 13.1.3 13.1 . 4 13.1.5
21、Partial Line Down (PLD) 13.1.6 13.1.7 Set Character Spacing (SCS) 13.1.8 Select Graphic Rendition (SGR) . 13.1.9 Select Character Spacing (SHS) . 13.1.10 Set Line Spacing (SLS) . 13.1.1 1 Start Reverse String (SRS) 13.1.12 Selective Tabulation (STAB) 13.1.13 Substitute Character (SUB) . 13.1.14 Sele
22、ct Line Spacing (SVS) 13.1.15 Line Position Backward (VPB) . 13.1.16 Line Position Relative (VPR) . 13.1.17 Code extension control functions 13.2 Layout control functions . 13.2.1 Backspace (BS) . 13.2.2 Character Position Backward (HPB) 13.2.3 Character Position Relative (HPR) . 13.2.4 No Justify (
23、JFY) 13.2.5 Set Additional Character Separation (SACS) . 13.2.6 Set Reduced Character Separation (SRCS) . 13.2.7 Set SPACE Width (SSW) . 13.3 Logical control functions 13.3.1 Break Permitted Here (BPH) 13.3.2 No Break Here (NBH) 13.3.3 Parallel Texts (PTX) . 13.4 Delimiters 13.4.1 Start Of Original
24、String (SOOS) . 13.4.2 13.4.3 String Terminator (ST) . 13.5 SPACE (SP) Identify Graphic Subrepertoire (IGS) . Line Feed (LF) Partial Line Up (PLU) . Start Of String (SOS) 14 Content layout process . 14.1 Introduction . 14.1.1 Purpose 14.1.2 Available area . 14.1.3 Presentation attributes . 14.1.4 Ch
25、aracter content architecture classes 14.1.5 Use of delimiters . 14.1.6 Layout of the content 14.1.7 Layout sequence 14.1.8 Character sets Content layout process for processable content 14.2.1 Single basic logical object to single basic layout object . 14.2.2 Single basic logical object to multiple b
26、asic layout objects 14.2.3 Multiple basic logical objects to single basic layout object Content layout process for formatted processable content Content layout process for formatted content . 14.2 14.3 14.4 15 Content imaging process 15.1 Introduction . 15.2 Content imaging process for formatted con
27、tent 15.2.1 Determination of initial point 15.2.2 Choosing character images . 15.2.3 Formatting indicator ITU-T Rec . T.416 (1993 E) Page 38 38 39 39 39 39 42 42 42 42 42 43 43 43 43 43 43 44 44 44 44 44 44 45 45 45 45 45 45 45 45 45 46 46 46 46 46 46 47 47 47 47 48 48 52 52 53 53 53 53 53 54 54 54
28、iii ITU-T RECMN*Tm4Lb 93 4862591 0593994 359 15.3 Content imaging process for formatted processable content Interactions between presentation attributes and control functions . Definition of character content architecture classes . 17.1 Formatted character content architecture class . 17.2 Processab
29、le character content architecture class . 17.3 Formatted processable character content architecture class Annex A - SGML representation of character content-specific attributes for ODL . 16 17 A . 1 A.2 A.3 A.4 AS Introduction . Names and public identifiers . Representation of attribute values . A.3
30、.1 Constructed parameters . A.3.2 Parentheses A.3.3 Alternative representation . A.3.4 String parameters A.3.6 Integer parameters . A.3.5 Keyword parameters . Presentation attributes . Shared presentation attributes (format attribute-directives) Layout presentation attributes (format attributes) . A
31、.4.1 A.4.2 A.4.3 Logical presentation attributes (format directives) . Coding attributes . Annex B . Summary of content architecture classes B.l B.2 B.3 Formatted character content architecture class . Processable character content architecture class . Formatted processable character content archite
32、cture class Annex C - Coded representations of control functions . Annex D - Summary of object identifiers . Page 54 54 55 55 56 56 58 58 58 58 58 59 59 59 59 59 59 59 60 60 60 61 61 63 65 67 68 iv ITU-T Rec . T.416 (1993 E) ITU-T RECMN*T.41b 93 = 4862591 0593995 295 Introduction This ITU-T Recommen
33、dation I International Standard was prepared as a joint publication by ITU-T Study Group VI1 and ISOAEC Joint Technical Committee 1. At present, the ITU-T Set of Recommendations in the T.410 series I International Standard IS0 8613 consists of: - Introduction and general principles; - Document struc
34、tures; - Document profile; - Open document interchange formats; - Character content architectures; - Raster graphics content architectures; - Geometric graphics content architectures; - Formal specification of the Open Document Architecture (FODA) (The formal specification is applicable to ISO/IEC 8
35、613 only). Further Recommendations I International Standards may be added to this series of ITU-T Recommendations I International Standards. Development of this set of ITU-T Recommendations I International Standards was originally in parallel with ECMA-101 standard: Open document architecture. This
36、series of ITU-T Recommendations I International Standards is a new edition of the CCITT T.410-Series of Recommendations (1998) and IS0 8613 (1989). Significant technical changes are the inclusion of the following amendments as agreed by ITU-T and ISO/IEC: - Alternative Representation; - - Colour; -
37、Conformance Testing Annex; - - Security; - Streams; - Styles; - Tiled Raster Graphics. Annex on use of MHS/MOTIS; Document Application Profile, Proforma and Notation; In addition, a number of technical corrigenda have been applied to this ITU-T Recommendation I International Standard. This ITU-T Rec
38、ommendation I International Standard contains four annexes: - - Annex A (integral): SGML representation of character content-specific attributes for ODL; Annex B (non-integral): Summary of content architecture classes Summary of content architecture classes; Annex C (non-integral): Coded representat
39、ions of control functions; Annex D (non-integral): Summary of object identifiers. - - ITU-T Rec. T.416 (1993 E) Y ITU-T RECNN*T.YLb 93 W 4862591 059399b 121 U ISODEC 8613-6 : 1994 (E) INTERNATIONAL STANDARD ITU-T RECOMMENDATION INFORMATION TECHNOLOGY - OPEN DOCUMENT ARCHITECTURE (ODA) AND INTERCHANG
40、E FORMAT: CHARACTER CONTENT ARCHITECTURES 1 Scope The purpose of the ITU-T Rec. T.410-Series I ISO/IEC 8613 is to facilitate the interchange of documents. In the context of these Recommendations I International Standards, documents are considered to be items such as memoranda, letters, invoices, for
41、ms and reports, which may include pictures and tabular material. The content elements used within the documents may include graphic characters, raster graphic elements and geometric graphic elements, ail potentially within one document. NOTE - These Recommendations I Intemational Standards are desig
42、ned to allow for extensions, including hypermedia features, spreadsheets and additional types of content such as audio and video. In addition to the content types defined in these Recommendations I International Standards, ODA also provides for arbitrary content types to be included in documents. Th
43、ese Recommendations I International Standards apply to the interchange of documents by means of data communications or the exchange of storage media. These Recommendations I International Standards provide for the interchange of documents for either or both of the following purposes: - - to allow pr
44、esentation as intended by the originator; to allow processing such as editing and reformatting. The composition of a document in interchange can take several forms: formatted form, allowing presentation of the document; processable form, allowing processing of the document; formatted processable for
45、m, allowing both presentation and processing. - - - These Recommendations I International Standards also provide for the interchange of ODA information structures used for the processing of interchanged documents. This ITU-T Recommendation I International Standard: - defines a character content arch
46、itecture that can be used in conjunction with the document architecture defined in ITU-T Rec. T.412 I ISO/IEC 8613-2; defines the internal structure of content conforming to this character content architecture; defines those aspects of rendition applicable to the presentation of character content; d
47、efines the presentation and content portion attributes applicable to this character content architecture; describes a character content layout process which, together with the document processing model described in ITU-T Rec. T.412 I ISOAEC 8613-2, determines the layout of character content in basic
48、 layout objects. - - - - ITU-T Rec. T.416 (1993 E) 1 - ITU-T RECMN*T*4Lb 93 4862573 0593997 Ob8 U ISO/IEC 8613-6 : 1994 (E) 2 Normative references The following ITU-T Recommendations and International Standards contain provisions which, through references, in this text, constitute provisions of this
49、 Recommendation I International Standard. At the time of publication, the editions indicated were valid. All Recommendations and Standards are subject to revision, and parties to agreements based on this Recommendation I International Standard are encouraged to investigate the possibility of applying the most recent edition of the Recommendations and Standards listed below. Members of IEC and IS0 maintain registers of currently valid International Standards. The ITU-T Secretariat maintains a list of currently valid ITU-T Recommendations. 2.1 Identical Recommendations I
