1、BRITISH STANDARD BS ISO/IEC 8859-3:1999 Information technology 8-bitsingle-byte coded graphic character sets Part 3: Latin alphabet No. 3 ICS 35.040BSISO/IEC8859-3:1999 This British Standard, having been prepared under the directionof the DISC Board, waspublished under the authorityof the Standards
2、Committee and comes intoeffecton 15April1999 BSI 02-2000 ISBN 0 580 29206 1 National foreword This British Standard reproduces verbatim ISO/IEC8859-3:1999and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee IST/2, Character Sets
3、and Information Coding, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European deve
4、lopments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Cata
5、logue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their
6、correct application. 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 and ii, theISO/IEC title page, pages ii to iv, pages 1 to 10 and a back cover. This standard has b
7、een updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSISO/IEC8859-3:1999 BSI 02-2000 i Contents Page National foreword Inside front cover Foreword
8、 iii Text of ISO/IEC 8859-3 1ii blankBSISO/IEC8859-3:1999 ii BSI 02-2000 Contents Page Foreword iii Introduction 1 1 Scope 1 2 Conformance 1 3 Normative references 1 4 Definitions 2 5 Notation, code table and names 2 6 Specification of the coded character set 3 7 Identification of the character set
9、3 Annex A (informative) Coverage of languages by parts 1 to 10 of ISO/IEC 8859 9 Annex B (informative) Main differences between ISO 8859-3:1988 and this first edition of this part of ISO/IEC 8859 10 Annex C (informative) Bibliography 10 Table 1 Character set, coded representation 5 Table 2 Code tabl
10、e of Latin alphabet No. 3 8 Table A.1 Language coverage 9BSISO/IEC8859-3:1999 BSI 02-2000 iii Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are
11、members of ISO or IEC participate in the development of International Standards through technical committees 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
12、 organizations, governmental and nongovernmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC1. Draft International Standards adopted by the joint technical committee are circul
13、ated 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/IEC8859-3was prepared by Joint Technical Committee ISO/IEC JTC1, Information technology, Subcommittee SC2, Coded character s
14、ets. This edition cancels and replaces ISO8859-3:1988 which has been technically revised. ISO/IEC 8859 consists of the following parts, under the general title Information technology 8-bit single-byte coded graphic character sets: Part 1: Latin alphabet No. 1; Part 2: Latin alphabet No. 2; Part 3: L
15、atin alphabet No. 3; Part 4: Latin alphabet No. 4; Part 5: Latin/Cyrillic alphabet; Part 6: Latin/Arabic alphabet; Part 7: Latin/Greek alphabet; Part 8: Latin/Hebrew alphabet; Part 9: Latin alphabet No. 5; Part 10: Latin alphabet No. 6. Annex A to Annex C of this part of ISO/IEC8859 are for informat
16、ion only.iv blankBSISO/IEC8859-3:1999 BSI 02-2000 1 Introduction ISO/IEC 8859 consists of several parts. Each part specifies a set of up to191graphic characters and the coded representation of these characters by means of a single8-bit byte. Each set is intended for use for a particular group of lan
17、guages. 1 Scope This part of ISO/IEC8859specifies a set of184 coded graphic characters identified as Latin alphabet No.3. This set of coded graphic characters is intended for use in data and text processing applications and also for information interchange. The set contains graphic characters used f
18、or general purpose applications in typical office environments in at least the following languages: Esperanto and Maltese, and if needed in conjunction with these, English, French (with restrictions, seeAnnex A.1, Notes), German, Italian, Latin and Portuguese. Coding of Turkish characters using this
19、 part is deprecated, that specified in part9is to be used. This set of coded graphic characters may be regarded as a version of an8-bit code according to ISO/IEC2022or ISO/IEC4873at level1. This part of ISO/IEC8859may not be used in conjunction with any other parts of ISO/IEC8859. If coded character
20、s from more than one part are to be used together, by means of code extension techniques, the equivalent coded character sets from ISO/IEC10367 should be used instead within a version of ISO/IEC4873at level2or level3. The coded characters in this set may be used in conjunction with coded control fun
21、ctions selected from ISO/IEC6429. However, control functions are not used to create composite graphic symbols from two or more graphic characters (see clause6). NOTEISO/IEC 8859 is not intended for use with Telematic services defined by ITU-T. If information coded according to ISO/IEC8859is to be tr
22、ansferred to such services, it will have to conform to the requirements of those services at the access-point. 2 Conformance 2.1 Conformance of information interchange A coded-character-data-element (CC-data-element) within coded information for interchange is in conformance with this part of ISO/IE
23、C8859 if all the coded representations of graphic characters within that CC-data-element conform to the requirements of clause6. 2.2 Conformance of devices A device is in conformance with this part of ISO/IEC8859 if it conforms to the requirements of2.2.1, and either or both of2.2.2 and2.2.3. A clai
24、m of conformance shall identify the document which contains the description specified in2.2.1. 2.2.1 Device description A device that conforms to this part of ISO/IEC8859 shall be the subject of a description that identifies the means by which the user may supply characters to the device, or may rec
25、ognize them when they are made available to him, as specified respectively in2.2.2 and2.2.3. 2.2.2 Originating devices An originating device shall allow its user to supply any sequence of characters from those specified in clause6, and shall be capable of transmitting their coded representations wit
26、hin a CC-data-element. 2.2.3 Receiving devices A receiving device shall be capable of receiving and interpreting any coded representations of characters that are within a CC-data-element, and that conform to clause6, and shall make the corresponding characters available to its user in such a way tha
27、t the user can identify them from among those specified there, and can distinguish them from each other. 3 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO/IEC8859. At the time of publication, the edition
28、s indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO/IEC8859are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid
29、International Standards. ISO/IEC 2022:1994, Information technology Character code structure and extension techniques. ISO/IEC 4873:1991, Information technology ISO8-bit code for information interchange Structure and rules for implementation. ISO/IEC 8824-1:1995, Information technology Abstract Synta
30、x Notation One (ASN. 1): Specification of basic notation. BSISO/IEC8859-3:1999 2 BSI 02-2000 4 Definitions For the purposes of this part of ISO/IEC8859 the following definitions apply. 4.1 bit combination an ordered set of bits used for the representation of characters 4.2 byte a bit string that is
31、operated upon as a unit 4.3 character a member of a set of elements used for the organization, control, or representation of data 4.4 code table a table showing the characters allocated to each bit combination in a code 4.5 coded character set; code a set of unambiguous rules that establishes a char
32、acter set and the one-to-one relationship between the characters of the set and their bit combinations 4.6 coded-character-data-element (CC-data-element) an element of interchanged information that is specified to consist of a sequence of coded representations of characters, in accordance with one o
33、r more identified standards for coded character sets 4.7 graphic character a character, other than a control function, that has a visual representation normally handwritten, printed or displayed, and that has a coded representation consisting of one or more bit combinations NOTEIn ISO/IEC8859a singl
34、e bit combination is used to represent each character. 4.8 graphic symbol a visual representation of a graphic character or of a control function 4.9 position that part of a code table identified by its column and row coordinates 5 Notation, code table and names 5.1 Notation The bits of the bit comb
35、inations of the 8-bit code are identified by b 8 , b 7 , b 6 , b 5 , b 4 , b 3 , b 2 , and b 1 , where b 8is the highest-order, or most-significant bit and b 1is the lowest-order, or least-significant bit. The bit combinations may be interpreted to represent numbers in binary notation by attributing
36、 the following weights to the individual bits: Using these weights, the bit combinations are identified by notations of the form xx/yy, where xx and yy are numbers in the range00to15. The correspondence between the notations of the form xx/yy and the bit combinations consisting of the bits b 8to b 1
37、is as follows: xx is the number represented by b 8 , b 7 , b 6and b 5where these bits are given the weights8,4,2, and1respectively. yy is the number represented by b 4 , b 3 , b 2and b 1where these bits are given the weights8,4,2, and1respectively. The bit combinations are also identified by notatio
38、ns of the form hk, where h and k are numbers in the range0to F in hexadecimal notation. The number h is the same as the number xx described above, and the number k the same as the number yy described above. 5.2 Layout of the code table An 8-bit code table consists of256positions arranged in16columns
39、 and16rows. The columns and the rows are numbered00to15. In hexadecimal notation the columns and the rows are numbered0to F. The code table positions are identified by notations of the form xx/yy, where xx is the column number and yy is the row number. The column and row numbers are shown at the top
40、 and left edges of the table respectively. The code table positions are also identified by notations of the form hk, where h is the column number and k is the row number in hexadecimal notation. The column and row numbers are shown at the bottom and right edges of the table respectively. The positio
41、ns of the code table are in one-to-one correspondence with the bit combinations of the code. The notation of a code table position, of the form xx/yy, or of the form hk, is the same as that of the corresponding bit combination. Bit b 8 b 7 b 6 b 5 b 4 b 3 b 2 b 1 Weight 128 64 32 16 8 4 2 1BSISO/IEC
42、8859-3:1999 BSI 02-2000 3 5.3 Names and meanings This part of ISO/IEC8859assigns a unique name and a unique identifier to each graphic character. These names and identifiers have been taken from ISO/IEC10646-1(E). This part of ISO/IEC8859 also specifies an acronym for each of the characters SPACE, N
43、O-BREAK SPACE and SOFT HYPHEN. For acronyms only Latin capital letters A to Z are used. It is intended that the acronyms be retained in all translations of the text. Except for SPACE (SP), NO-BREAK SPACE (NBSP) and SOFT HYPHEN (SHY), this part of ISO/IEC8859does not define and does not restrict the
44、meanings of graphic characters. This part of ISO/IEC8859specifies a graphic symbol for each graphic character. This symbol is shown in the corresponding position of the code table. However, this part, or any other part, of ISO/IEC8859does not specify a particular style or font design for imaging gra
45、phic characters. AnnexB of ISO/IEC10367 gives further information on this subject. 5.3.1 SPACE (SP) A graphic character the visual representation of which consists of the absence of a graphic symbol. 5.3.2 NO-BREAK SPACE (NBSP) A graphic character the visual representation of which consists of the a
46、bsence of a graphic symbol, for use when a line break is to be prevented in the text as presented. 5.3.3 SOFT HYPHEN (SHY) A graphic character that is imaged by a graphic symbol identical with, or similar to, that representing HYPHEN, for use when a line break has been established within a word. 6 S
47、pecification of the coded character set This part of ISO/IEC8859specifies 184characters allocated to the bit combinations of the code table (Table 2). None of these characters are combining characters. NOTECombining characters are described in ISO/IEC2022:1994 subclause6.3.3. Control functions, such
48、 as BACKSPACE or CARRIAGE RETURN, shall not be used to create composite graphic symbols, which are made up from the graphic representations of two or more characters. 6.1 Characters of the set and their coded representation See Table 1. 6.2 Code table For each character in the set the code table (Ta
49、ble 2) shows a graphic symbol at the position in the code table corresponding to the bit combination specified inTable 1. The shaded positions in the code table correspond to bit combinations that do not represent graphic characters. Their use is outside the scope of ISO/IEC8859; it is specified in other International Standards, for example ISO/IEC6429. The positions in the code table that are shown with cross-hatching correspond to bit combinations in Table 1 having the entry “This position shall not be used”. 7 Identification of t
