1、BRITISH STANDARD BS ISO/IEC 10538:1991 Implementation of ISO/IEC 10538:1991 Information technology Controlfunctions for text communication UDC 681.3.04BSISO/IEC10538:1991 This British Standard, having been prepared under the directionof the Information Systems Technology StandardsPolicy Committee, w
2、aspublished under the authorityof the Standards Boardand comes intoeffecton 20December1991 BSI 02-2000 The following BSI references relate to the work on this standard: Committee reference IST/2 Draft for comment 90/62174 DC ISBN 0 580 20408 1 Committees responsible for this British Standard The pre
3、paration of this British Standard was entrusted by the Information Systems Technology Standards Policy Committee (IST/-) to Technical Committee IST/2, upon which the following bodies were represented: British Computer Society British Federation of Printing Machinery and Supplies Ltd. British Radio a
4、nd Electronic Equipment Manufacturers Association British Telecommunications plc Computing Services Association EEA (the Association of Electronics, Telecommunications and Business Equipment Industries) Information and Communications Industry Association Institution of Electrical Engineers Internati
5、onal Press Telecommunications Council Coopted members The following bodies were also represented in the drafting of the standard, through subcommittees and panels: Department of Trade and Industry (IT Standards Unit) HM Treasury (Central Computer and Telecommunications Agency) Information Systems Co
6、mmittee of the Universities Funding Council Ministry of Defence Coopted members Amendments issued since publication Amd. No. Date CommentsBSISO/IEC10538:1991 BSI 02-2000 i Contents Page Committees responsible Inside front cover National foreword ii Foreword vi Text of ISO/IEC 10538 1BSISO/IEC10538:1
7、991 ii BSI 02-2000 National foreword This British Standard reproduces verbatim ISO/IEC10538:1991 and implements it as the UK national standard. This British Standard is published under the direction of the Information Systems Technology Standards Policy Committee whose Technical Committee IST/2 has
8、the responsibility to: aid enquirers to understand the text; present to the responsible international committee any enquiries on interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. NOTEInterna
9、tional and European Standards, as well as overseas standards, are available from BSI Sales Department, BSI, Linford Wood, Milton Keynes, MK14 6LE. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct a
10、pplication. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i andii, theISO/IEC title page, pagesiitovi, pages1 to41 and aback cover. This standard has been updated (see
11、 copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.ISO/IEC10538:1991 (E) ii BSI 02-2000 Contents Page Foreword vi Introduction 1 Section 1. General 1 Scope 1 2 Conformance 1 2.1 Types of conformance 1 2.2 Conformance of
12、information interchange 1 2.3 Conformance of devices 1 2.3.1 Device description 2 2.3.2 Originating devices 2 2.3.3 Receiving devices 2 3 Normative references 2 4 Definitions 2 4.1 active area 2 4.2 active field 2 4.3 active line 2 4.4 active page 2 4.5 active position 2 4.6 area 2 4.7 bit combinati
13、on 2 4.8 byte 3 4.9 character 3 4.10 character path 3 4.11 character position 3 4.12 coded character set 3 4.13 coded-character-data-element (CC-data-element) 3 4.14 code extension 3 4.15 code table 3 4.16 control character 3 4.17 control function 3 4.18 control sequence 3 4.19 control string 3 4.20
14、 cursor 3 4.21 default 4 4.22 to designate 4 4.23 device 4 4.24 display 4 4.25 document 4 4.26 document terminator 4 4.27 editor function 4 4.28 escape sequence 4 4.29 field 4 4.30 Final Byte 4 4.31 formator function 4 4.32 formattable text 4 4.33 formatted text 5 4.34 graphic character 5 4.35 graph
15、ic rendition 5 4.36 graphic symbol 5 4.37 Intermediate Byte 5ISO/IEC10538:1991 (E) BSI 02-2000 iii Page 4.38 to invoke 5 4.39 line 5 4.40 line home position 5 4.41 line limit position 5 4.42 line progression 5 4.43 page 5 4.44 page home position 5 4.45 page-image format 5 4.46 page limit position 6
16、4.47 page terminator 6 4.48 Parameter Byte 6 4.49 position 6 4.50 repertoire 6 4.51 tabulation 6 4.52 tabulation stop 6 4.53 text area 6 4.54 user 6 5 Notation and names 6 5.1 Notation 6 5.2 Names 7 6 Categories of control functions 7 7 Coded representation 7 7.1 General 7 7.2 Elements of the C0 set
17、 7 7.3 Elements of the C1 set 7 7.4 Control sequences 8 7.5 Independent control functions 8 8 Types of control functions 8 Section 2. Control functions for page-image format (PIF) 9 Concepts relating to page-image format (PIF) 9 10 Repertoire of control functions 10 10.1 Format effectors 10 10.2 Pre
18、sentation control functions 10 10.3 Introducers 10 10.4 Information Separators 10 10.5 Miscellaneous control functions 10 11 Definition of control functions 11 11.1 BS BACKSPACE 11 11.2 CR CARRIAGE RETURN 11 11.3 CSI CONTROL SEQUENCE INTRODUCER 11 11.4 DT DOCUMENT TERMINATOR IS4 INFORMATION SEPARATO
19、R FOUR 11 11.5 ESC ESCAPE 12 11.6 FF FORM FEED 12 11.7 HPR CHARACTER POSITION FORWARD 12 11.8 IGS IDENTIFY GRAPHIC SUBREPERTOIRE 12 11.9 LF LINE FEED 13 11.10 PFS PAGE FORMAT SELECTION 13ISO/IEC10538:1991 (E) iv BSI 02-2000 Page 11.11 PLD PARTIAL LINE FORWARD 13 11.12 PLU PARTIAL LINE BACKWARD 14 11
20、.13 PT PAGE TERMINATOR IS3 INFORMATION SEPARATOR THREE 14 11.14 SGR SELECT GRAPHIC RENDITION 14 11.15 SHS SELECT CHARACTER SPACING 15 11.16 SPD SELECT PRESENTATION DIRECTIONS 15 11.17 SUB SUBSTITUTE 16 11.18 SVS SELECT LINE SPACING 16 11.19 VPR LINE POSITION FORWARD 16 12 Levels of control functions
21、 17 Section 3. Control functions for formatted and formattable text 13 Concepts relating to formatted and formattable text 18 13.1 Formatted text 18 13.2 Formattable text 18 13.3 Unique representation of elements of text in interchange 18 14 Repertoire of control functions 19 14.1 Format effectors 1
22、9 14.2 Presentation control functions 20 14.3 Logical control functions 20 14.4 Introducers 20 14.5 Miscellaneous control functions 21 15 Definition of control functions 21 15.1 BPH BREAK PERMITTED HERE 21 15.2 CR CARRIAGE RETURN 21 15.3 CR FF CARRIAGE RETURN/FORM FEED 21 15.4 CR/LF CARRIAGE RETURN/
23、LINE FEED 21 15.5 CSI CONTROL SEQUENCE INTRODUCER 22 15.6 ESC ESCAPE 22 15.7 FF FORM FEED 22 15.8 GCC GRAPHIC CHARACTER COMBINATION 22 15.9 HPB CHARACTER POSITION BACKWARD 22 15.10 HPR CHARACTER POSITION FORWARD 23 15.11 HT CHARACTER TABULATION 23 15.12 IGS IDENTIFY GRAPHIC SUBREPERTOIRE 23 15.13 LF
24、 LINE FEED 23 15.14 NBH NO BREAK HERE 24 15.15 NEL NEXT LINE 24 15.16 NEL FF NEXT LINE/FORM FEED 24 15.17 PEC PRESENTATION EXPAND OR CONTRACT 24 15.18 PFS PAGE FORMAT SELECTION 25 15.19 PLD PARTIAL LINE FORWARD 25 15.20 PLU PARTIAL LINE BACKWARD 26 15.21 PTX PARALLEL TEXTS 26 15.22 SACS SET ADDITION
25、AL CHARACTER SEPARATION 27 15.23 SAPV SELECT ALTERNATIVE PRESENTATION VARIANTS 27 15.24 SCO SELECT CHARACTER ORIENTATION 28 15.25 SCS SET CHARACTER SPACING 28ISO/IEC10538:1991 (E) BSI 02-2000 v Page 15.26 SGR SELECT GRAPHIC RENDITION 29 15.27 SHS SELECT CHARACTER SPACING 30 15.28 SLH SET LINE HOME 3
26、0 15.29 SLL SET LINE LIMIT 30 15.30 SLS SET LINE SPACING 31 15.31 SP SPACE 31 15.32 SPD SELECT PRESENTATION DIRECTIONS 31 15.33 SPH SET PAGE HOME 31 15.34 SPL SET PAGE LIMIT 32 15.35 SRCS SET REDUCED CHARACTER SEPARATION 32 15.36 SRS START REVERSED STRING 32 15.37 SSU SELECT SIZE UNIT 33 15.38 SSW S
27、ET SPACE WIDTH 33 15.39 SUB SUBSTITUTE 33 15.40 SVS SELECT LINE SPACING 33 15.41 TAC TABULATION ALIGNED CENTRED 34 15.42 TALE TABULATION ALIGNED LEADING EDGE 34 15.43 TATE TABULATION ALIGNED TRAILING EDGE 34 15.44 TBC TABULATION CLEAR 35 15.45 TCC TABULATION CENTRED ON CHARACTER 35 15.46 TSR TABULAT
28、ION STOP REMOVE 35 15.47 VPB LINE POSITION BACKWARD 35 15.48 VPR LINE POSITION FORWARD 35 16 Levels of control functions 36 Annex A (informative) Text area formats 38 Annex B (informative) Differences between Section 2 and CCITT Recommendation T.61 39 Annex C (informative) Differences between Sectio
29、n 2 and Section 3 40 Table A.1 Dimensions of the text area 39 Descriptors: Data processing, information interchange, text communication, coded representation, control functions.ISO/IEC10538:1991 (E) vi BSI 02-2000 Foreword ISO (the International Organization for Standardization) and IEC (the Interna
30、tional Electrotechnical Commission) form the specialized system for world-wide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fie
31、lds 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 work. In the field of information technology, ISO and IEC have established a
32、joint technical committee, ISO/IEC JTC1. 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 least75% of the national bodies casting a vote. International Standard ISO/IE
33、C10538 was prepared by Joint Technical Committee ISO/IEC JTC1, Information technology. Annex A, Annex B and Annex C of this International Standard are for information only.ISO/IEC10538:1991 (E) BSI 02-2000 1 Introduction This International Standard combines in one document the repertoires of control
34、 functions for text communication that were first published in Draft International Standard ISO/DIS6937-3 (for the control functions for page-image format), and in the Draft Proposal for ISO6937-4 (for the control functions for formatted and formattable text). Because these repertoires of control fu
35、nctions are applicable to text communication in general, and can be used independently from ISO6937, JTC1/SC2 at its21st plenary meeting in London in October1988 decided in resolution8that the former ISO6937-3 and ISO6937-4 were to be published as a single new International Standard. Section 1. Gene
36、ral 1 Scope This International Standard defines the control functions, and their coded representations needed, for use in text communication. Section2specifies the control functions for text in page-image format, Section3specifies the control functions for formatted and formattable text. The control
37、 functions, with the exception of two, have been taken from ISO6429. The definitions of the control functions in this International Standard are, in general, more specific than the corresponding definitions in ISO6429. The specifications in this International Standard apply to the interchange of tex
38、t in the form of binary-coded representations of graphic characters and control functions. They are not intended for the actual processing of text. Although, in general, text consists of characters and pictures, this International Standard applies only to text made up of characters. The coded repres
39、entations defined in this International Standard are intended for use when the control functions concerned are embedded in the communicated text, not when they are separated from the text as elements of a communication protocol, for example. This International Standard does not define any control fu
40、nctions required for controlling the process of communication. 2 Conformance 2.1 Types of conformance Full conformance to a standard means that all of its requirements are met. Conformance will only have a unique meaning if the standard contains no options. If there are options within the standard t
41、hen they shall be clearly identified, and any claim of conformance shall include a statement that identifies those options that have been adopted. This International Standard is of a different nature since it specifies for the applications in Section2and Section3 a number of facilities from which di
42、fferent selections may be made to suit individual application requirements. These selections are identified as levels in clause12 and clause 16. They shall be identified at the time that a claim of conformance is made. Conformance to such an identified selection is known as limited conformance. 2.2
43、Conformance of information interchange A coded-character-data-element (CC-data-element) within coded information for interchange is in conformance with a Section and a level of this International Standard if all coded representations of control functions within that CC-data-element conform either to
44、 the requirements of clause 12 or to those of clause16. A claim of conformance shall identify the Section and the level adopted. 2.3 Conformance of devices A device is in conformance with this International Standard if it conforms to the requirements of2.3.1, and either or both2.3.2 and 2.3.3. Any c
45、laim of conformance shall identify the document which contains the description specified in 2.3.1, and shall identify Section and the level as well as the selected control functions.ISO/IEC10538:1991 (E) 2 BSI 02-2000 2.3.1 Device description A device that conforms to this International Standard sha
46、ll be the subject of a description that identifies the means by which the user may supply the selected control functions or may recognize them when they are made available to him, as specified in2.3.2. and2.3.3, respectively. 2.3.2 Originating devices An originating device shall allow its user to su
47、pply any sequence of control functions from the Section and level adopted, and shall be capable of transmitting their coded representation within a CC-data-element. 2.3.3 Receiving devices A receiving device shall be capable of receiving and interpreting any coded representations of control function
48、s that are within a CC-data-element, and that conform to2.2, and shall make the corresponding control functions available to its user in such a way that the user can identify them from among those of the Section and level adopted, and can distinguish them from each other. 3 Normative references The
49、following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards listed below. Members of IEC and IS
