ISO IEC TR 19758 AMD 2-2005 Information technology - Document description and processing languages - DSSSL library for complex composition Amendment 2 Extension.pdf

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1、 Reference number ISO/IEC TR 19758:2003/Amd.2:2005(E) ISO/IEC 2005TECHNICAL REPORT ISO/IEC TR 19758 First edition 2003-04-01 AMENDMENT 2 2005-07-01 Information technology Document description and processing languages DSSSL library for complex compositions AMENDMENT 2: Extensions to multilingual comp

2、ositions (South-East Asian compositions) Technologies de linformation Description de document et langages de traitement Bibliothque DSSSL pour compositions complexes AMENDEMENT 2: Extensions aux compositions multilingues (compositions sud-est asiatiques) ISO/IEC TR 19758:2003/Amd.2:2005(E) PDF discl

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5、e file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO/IEC 2005 Al

6、l rights reserved. Unless otherwise specified, 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 either ISO at the address below or ISOs member body in the country

7、of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO/IEC 2005 All rights reservedISO/IEC TR 19758:2003/Amd.2:2005(E) ISO/IEC 2005 All rights reserved iii Foreword

8、ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical commi

9、ttees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the w

10、ork. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of the joint technical committee is to prepare International S

11、tandards. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote. In exceptional circumstances, the joint technical committe

12、e may propose the publication of a Technical Report of one of the following types: type 1, when the required support cannot be obtained for the publication of an International Standard, despite repeated efforts; type 2, when the subject is still under technical development or where for any other rea

13、son there is the future but not immediate possibility of an agreement on an International Standard; type 3, when the joint technical committee has collected data of a different kind from that which is normally published as an International Standard (“state of the art”, for example). Technical Report

14、s of types 1 and 2 are subject to review within three years of publication, to decide whether they can be transformed into International Standards. Technical Reports of type 3 do not necessarily have to be reviewed until the data they provide are considered to be no longer valid or useful. Attention

15、 is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. Amendment 2 to ISO/IEC TR 19758:2003 was prepared by Joint Technical Committee ISO/IEC JTC 1, Informat

16、ion technology, Subcommittee SC 34, Document description and processing languages. This amendment provides additional DSSSL library specifications for multilingual compositions. The style elements supported in this amendment are based on the requirements for South-East Asian documents. ISO/IEC TR 19

17、758:2003/Amd.2:2005(E) ISO/IEC 2005 All rights reserved 1 Information technology Document description and processing languages DSSSL library for complex compositions AMENDMENT 2 Extensions to multilingual compositions (South-East Asian compositions) Page 5, subclause 4.5.2 Add the following note aft

18、er the first paragraph: “NOTE In some multilingual documents, line spaces larger than those specified in the tables and paragraph spaces may be employed.” Page 11, subclause 4.12 Replace “(right side in vertical composition or top side in horizontal composition)” with “(right/left side in vertical c

19、omposition or top/bottom side in horizontal composition)”. Page 23, subclause 4.21 Add the following note under list item a): “NOTE The first paragraph in a clause may have non-indentation.” Page 23, subclause 4.21 Add the following list item c) after the list item b): “c) two em indentation”. Page

20、23, subclause 4.21 Add the following note at the end of the subclause: “NOTE Just after the paragraph indentation, an open quote may be located as a paragraph initiator.” Page 23, subclause 4.22 Add the following note after the last paragraph: “NOTE An underline or overline may be interrupted to avo

21、id contacting with a character and be cut in pieces at word spaces. The property is a choice of interrupt/non-interrupt.” ISO/IEC TR 19758:2003/Amd.2:2005(E) 2 ISO/IEC 2005 All rights reservedPage 24 Add the following subclauses before Clause 5: “ 4.25 Enclosure A rule encloses a character or charac

22、ter string. The enclosure has the properties of rule pattern, offset from character(s), and rounded corner. 4.26 Drop cap At the beginning of a paragraph, large character(s) with a height larger than that of two lines can be employed in such a way that its body is dropped into the subsequent text. T

23、his drop cap has the properties of number of lines, number of characters, character size, and font. 4.27 Line spanning An area spanning several lines is reserved. The line spanning has the properties of range of spanning, character size in spanned lines and a spanned line space. 4.28 Letter space fo

24、r emphasis (Sperrsatz) Character spaces in a character string to be emphasized are enlarged. Letter space for emphasis has the property of space size. ” Page 36, Clause 6 Add the following specification after the comment “indent size at the beginning of the paragraph.”: ; two em indentation ; (add-r

25、esult (define *first-line-start-indent* , ; (if findf (car findf) (* 2 *base-font-size*) Page 37, Clause 6 Add the following specification after the last paragraph of this clause: (define PI (if (first-sibling? (current-node) (make paragraph first-line-start-indent: 0pt) (make paragraph first-line-s

26、tart-indent: 10pt) ;1em ) ; (define (openquote) (make sequence (literal “) ISO/IEC TR 19758:2003/Amd.2:2005(E) ISO/IEC 2005 All rights reserved 3 Page 41, Clause 7 Add the following specification after the Underline specification: ; THAI_Underline (define (THAI_UNDERLINE) (make score type: after ; N

27、ote This specification is dependend to implementation. ; When specified language is Thai and the value of type is after, ; underline must avoid if glyph is available on underline position (process-children) Page 41, Clause 7 Replace the existing emphasizing-mark specification with the following spec

28、ification: ; improvement (emphasizing-mark) ; (define (EMPHASIZING-MARK) (make emphasizing-mark mark: (make mark (sosofo-label (literal “) over-mark) (sosofo-label (literal “) under-mark) ; mark-style: Public Identifier ; (process-children) Page 46, Clause 7 Add the following specification at the en

29、d of the clause: (define (ENCLOSURE) (make box ( ; box-size-before: specification of the length between before line and placement-path ; box-size-after: specification of the length between after line and placement-path ; box-size-start: specification of the length between end line and first glyph ;

30、box-size-end: specification of the length between start line and last glyph box-open-end?: #t (process-children) ; NOTE Dropcap specification using the flow object class of table. (define (dropcap scale num str width) ; width is number of characters in one line (let* (len (string-length str) (fsize

31、(* *font-size* scale) (b (* (- width (* scale num) scale) (a (if ( b len) (+ b num) len) ) (make table (make table-column width: (* fsize num) ISO/IEC TR 19758:2003/Amd.2:2005(E) 4 ISO/IEC 2005 All rights reserved(make table-column) (make table-row (make table-cell (make paragraph line-spacing: (if ( (define (bullet) (make paragraph (literal “) ) ISO/IEC TR 19758:2003/Amd.2:2005(E) ICS 35.060 Price based on 4 pages ISO/IEC 2005 All rights reserved