ITU-T T 416-1993 Information Technology - Open Document Architecture (ODA) and Interchange Format Character Content Architectures - Telematic Services Terminal Equipments and Proto.pdf
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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 Similarly, in this reform process, the CCIR and the IFRB have been replaced by the Radiocommunication Sector.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
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