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1、 Please see the administrative notes on page iii RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE AND TO PROVIDE SUPPORT- ING DOCUMENTATION. IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECH
2、NO- LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STAN- DARDS TO WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS. Reference number ISO/IEC FDIS 9541-4:2009(E) ISO/IEC 2009 FINAL DRAFT ISO/IEC J
3、TC 1 Secretariat: ANSI Voting begins on: 2009-01-07 Voting terminates on: 2009-03-07 INTERNATIONAL STANDARD ISO/IEC FDIS 9541-4 Information technology Font information interchange Part 4: Harmonization to Open Font Format Technologies de linformation change dinformation sur les polices de caractres
4、Partie 4: Harmonisation au format de police de caractres ouvert Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=HP Monitoring/1111111164 Not for Resale, 02/02/2009 19:10:51 MSTNo reproduction or networking permitted without license from IHS -,
5、-,- ISO/IEC FDIS 9541-4:2009(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the edi
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10、 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 Reproduction may be subject to royalty payments or a licensing agreement. Violators may be prosecuted. ii ISO/IEC 2009 All rights reserved Copyright International Organization for
11、Standardization Provided by IHS under license with ISO Licensee=HP Monitoring/1111111164 Not for Resale, 02/02/2009 19:10:51 MSTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC FDIS 9541-4:2009(E) ISO/IEC 2009 All rights reserved iii In accordance with the provisions of
12、 Council Resolution 21/1986, this document is circulated in the English language only. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=HP Monitoring/1111111164 Not for Resale, 02/02/2009 19:10:51 MSTNo reproduction or networking permitted with
13、out license from IHS -,-,- ISO/IEC FDIS 9541-4:2009(E) iv ISO/IEC 2009 All rights reserved Contents Page Foreword. v Introduction. vi 1 Scope 1 2 Normative references1 3 Terms and definitions .2 4 Harmonization to Open Font Format.2 4.1 Harmonization of the elements in OFF “head” table .2 4.2 Harmon
14、ization of the elements in OFF “name” table 5 4.3 Harmonization of the elements in OFF “hhea” table .6 4.4 Harmonization of the elements in OFF “hmtx” table.7 4.5 Harmonization of the elements in OFF “vhea” table8 4.6 Harmonization of the elements in OFF “vmtx” table .9 4.7 Harmonization of the elem
15、ents in OFF “maxp” table 10 4.8 Harmonization of the elements in OFF “kern” table10 4.9 Harmonization of the elements in OFF “post” table12 4.10 Harmonization of the elements in OFF “CFF” table.12 4.11 Harmonization of the elements in OFF “OS/2” table17 4.12 Harmonization of the elements in OFF “PCL
16、T” table 21 4.13 Harmonization of the elements in OFF “VORG” table.22 4.14 Harmonization of the elements in OFF “VDMX” table .23 5 Harmonization to the glyph names in OFF file .23 6 Layout Tag Registry and ISO/IEC 10036 .23 Annex A (informative) Harmonization of numerical properties to OFFS.24 A.1 G
17、eneral24 A.2 Comparison of the definitions of metric properties in OFFS and ISO/IEC 9541.24 A.2.1 Horizontal metric properties.24 A.2.2 Vertical metric properties .25 A.3 Harmonization of the numerical elements in OFF tables 26 A.3.1 Harmonization of the elements in OFF “head“ table26 A.3.2 Harmoniz
18、ation of the elements in OFF “hhea” table .26 A.3.3 Harmonization of the elements in OFF “hmtx” table.27 A.3.4 Harmonization of the elements in OFF “vhea” table28 A.3.5 Harmonization of the elements in OFF “vmtx” table .29 A.3.6 Harmonization of the elements in OFF “kern” table30 A.3.7 Harmonization
19、 of the elements in OFF “post“ table 30 A.3.8 Harmonization of the elements in OFF “CFF” table.31 A.3.9 Harmonization of the elements in OFF “OS/2” table31 A.3.10 Harmonization of the elements in OFF “PCLT” table 33 A.3.11 Harmonization of the elements in OFF “VORG” table.35 Bibliography36 Copyright
20、 International Organization for Standardization Provided by IHS under license with ISO Licensee=HP Monitoring/1111111164 Not for Resale, 02/02/2009 19:10:51 MSTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC FDIS 9541-4:2009(E) ISO/IEC 2009 All rights reserved v Forewo
21、rd 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 co
22、mmittees 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 th
23、e work. 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 Internationa
24、l Standards. 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. Attention is drawn to the possibility that some of the
25、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. ISO/IEC 9541-4 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 34, Document description and process
26、ing languages. ISO/IEC 9541 consists of the following parts, under the general title Information technology Font information interchange: Part 1: Architecture Part 2: Interchange format Part 3: Glyph shape representation Part 4: Harmonization to Open Font Format Copyright International Organization
27、for Standardization Provided by IHS under license with ISO Licensee=HP Monitoring/1111111164 Not for Resale, 02/02/2009 19:10:51 MSTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC FDIS 9541-4:2009(E) vi ISO/IEC 2009 All rights reserved Introduction ISO/IEC 9541 is a fo
28、nt information interchange standard and is designed to be independent of any concrete font file format. The Open Font Format (ISO/IEC 14496-22) is a font file format specification that is based on the TrueType font file format. With regard to the handling and utilization of the typographic propertie
29、s stored in OFF file, ISO/IEC 14496-22 describes the implementations on Microsoft Windows or IBM OS/2 only. Therefore, ISO/IEC 14496-22 does not specify the method for defining a font resource in ISO/IEC 9541 architectures from a given OFF file, because it is out of the scope. ISO/IEC 9541-4 fills t
30、he gap between OFF file and font resource in ISO/IEC 9541. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=HP Monitoring/1111111164 Not for Resale, 02/02/2009 19:10:51 MSTNo reproduction or networking permitted without license from IHS -,-,- F
31、INAL DRAFT INTERNATIONAL STANDARD ISO/IEC FDIS 9541-4:2009(E) ISO/IEC 2009 All rights reserved 1 Information technology Font information interchange Part 4: Harmonization to Open Font Format 1 Scope ISO/IEC 9541 specifies the architecture of font resources, as well as the formats for font interchang
32、e among information processing systems. It also specifies the architecture and formats that can be used to construct font references in general electronic document interchange. This part of ISO/IEC 9541 specifies the correspondences between ISO/IEC 9541 font resource and ISO/IEC 14496-22 Open Font F
33、ormat file (OFF), to define ISO/IEC 9541 font resource from a given OFF file. The classification (required or optional), syntax, and possible values of the properties are defined in ISO/IEC 9541-1 and ISO/IEC 9541-2. The glyph shape representation and its interpretation are defined in ISO/IEC 9541-3
34、. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO/IEC 9541-1, Informat
35、ion technology Font information interchange Part 1: Architecture ISO/IEC 9541-2, Information technology Font information interchange Part 2: Interchange format ISO/IEC 9541-3, Information technology Font information interchange Part 3: Glyph shape representation ISO/IEC 10036, Information technology
36、 Font information interchange Procedures for registration of font- related identifiers ISO/IEC 10180, Information technology Processing languages Standard Page Description Language (SPDL) ISO/IEC 14496-18, Information technology Coding of audio-visual objects Part 18: Font compression and streaming
37、ISO/IEC 14496-22, Information technology Coding of audio-visual objects Part 22: Open Font Format Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=HP Monitoring/1111111164 Not for Resale, 02/02/2009 19:10:51 MSTNo reproduction or networking per
38、mitted without license from IHS -,-,- ISO/IEC FDIS 9541-4:2009(E) 2 ISO/IEC 2009 All rights reserved 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO/IEC 9541-1, ISO/IEC 9541-2, ISO/IEC 9541-3, ISO/IEC 14496-22 and the following apply. NOTE The defini
39、tions given in 3.1 and 3.2 take precedence over the definitions of the same terms given in ISO/IEC 9541-1, ISO/IEC 9541-2, ISO/IEC 9541-3 and ISO/IEC 14496-22. 3.1 AFII glyph name glyph name defined by the Association for Font Information Interchange (AFII) 3.2 italic script typeface NOTE 1 In ISO/I
40、EC 9541, “italic” does not refer to the oblique typeface that makes the upright typeface slanted. NOTE 2 In ISO/IEC 14496-22, “italic” means both the script typeface and the oblique typeface synthesized from the normal typeface. 4 Harmonization to Open Font Format 4.1 Harmonization of the elements i
41、n OFF “head” table 4.1.1 “Table version number” element ISO/IEC 9541-1, ISO/IEC 9541-2 and ISO/IEC 9541-3 have no predefined property to interchange this value which describes the concrete file structure. 4.1.2 “fontRevision” element This element is used to define ISO/IEC 9541-1 DATAVERSION. 4.1.3 “
42、checkSumAdjustment” element ISO/IEC 9541-1, ISO/IEC 9541-2 and ISO/IEC 9541-3 have no predefined property to interchange this value which is used by the checksum calculation. 4.1.4 “magicNumber” element ISO/IEC 9541-1, ISO/IEC 9541-2 and ISO/IEC 9541-3 have no predefined property to interchange this
43、 value because it is constant and specific to OFF file. 4.1.5 “flags” element The flags element is 16 bit value to describe the feature of the OFF file. The font file of OFF stores this element in big endian and the bit0 means its LSB, bit15 means its MSB. The bit5-10 are used by TrueType fonts desi
44、gned for Apple Macintosh font manager, but their specification is out of OFF. a) bit0 Bit0 shows Boolean flag if Baseline is set to y=0 line. ISO/IEC 9541-1, ISO/IEC 9541-2 and ISO/IEC 9541-3 do not have per-font Boolean flag for the position of Baseline. Copyright International Organization for Sta
45、ndardization Provided by IHS under license with ISO Licensee=HP Monitoring/1111111164 Not for Resale, 02/02/2009 19:10:51 MSTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC FDIS 9541-4:2009(E) ISO/IEC 2009 All rights reserved 3 b) bit1 Bit1 shows Boolean flag if LeftSi
46、deBearing is set to x=0 line. ISO/IEC 9541-1, ISO/IEC 9541-2 and ISO/IEC 9541-3 do not have per-font Boolean flag for the position of LeftSideBearing. c) bit2 Bit2 shows Boolean flag if sfnt TrueType glyph procedure depends on pointsize. ISO/IEC 9541-1 and ISO/IEC 9541-2 have no per-font boolean fla
47、g for specific glyph shape representation. d) bit3 Bit3 shows Boolean flag if PPEM is integer. ISO/IEC 9541-1, ISO/IEC 9541-2 and ISO/IEC 9541-3 have no predefined property to interchange this value which depends on glyph shape representation and the glyph shape procedure interpreter. e) bit4 Bit4 s
48、hows Boolean flag if Microsoft instruction to change character width is used. ISO/IEC 9541-1 and ISO/IEC 9541-2 have no per-font Boolean flag for specific glyph shape representation. f) bit11 Bit11 shows Boolean flag if this OFF file is Agfa MicroType font. ISO/IEC 9541-1, ISO/IEC 9541-2 and ISO/IEC 9541-3 have no predefined property to interchange this value because this value declares the font file compression technology defined in ISO/IE