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    AS/NZS 4159.1:1994ISO/IEC 9541-1:1991ISO/IEC 9541-1:1991/Cor.1:1992

    Australian/New Zealand Standard

    Information technologyFontinformation interchange

    Part 1: Architecture

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    AS/NZS 4159.1:1994

    This Joint Australian/New Zealand Standard was prepared by Joint Technical

    Committee IT/1, Information SystemsInterconnection. It was approved on behalf of

    the Council of Standards Australia on 12 October 1993 and on behalf of the Council

    of Standards New Zealand on 22 April 1993. It was published on 21 March 1994.

    The following interests are represented on Committee IT/1:

    Australian Association of Permanent Building Societies

    Australian Bankers Association

    Australian Bureau of StatisticsAustralian Chamber of Commerce and Industry

    Australian Committee of Directors and Principals

    Australian Computer Society

    Australian Computer Users Association

    Australian Information Industry Association

    Australian Telecommunications Users Group

    Australian Vice Chancellors Committee

    Department of Defence, Australia

    Department of Industry, Technology and Commerce, Australia

    Information Exchange Steering Committee, Australia

    Institute of Information and Communication Technologies, CSIRO, Australia

    Life Insurance Federation of AustraliaOPTUS Communications, Australia

    Telecom Australia

    Review of Standards. To keep abreast of progress in industry, Joint Australian/

    New Zealand Standards are subject to periodic review and are kept up to date by theissue of amendments or new editions as necessary. It is important therefore thatStandards users ensure that they are in possession of the latest edition, and anyamendments thereto.

    Full details of all Joint Standards and related publications will be found in theStandards Australia and Standards New Zealand Catalogue of Publications; thisinformation is supplemented each month by the magazines The Australian Standardand Standards New Zealand, which subscribing members receive, and which givedetails of new publications, new editions and amendments, and of withdrawnStandards.

    Suggestions for improvements to Joint Standards, addressed to t he head office of ei therStandards Australia or Standards New Zealand, are welcomed. Notification of anyinaccuracy or ambiguity found in a Joint Australian/New Zealand Standard should bemade without delay in order that the matter may be investigated and appropriate actiontaken.

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    AS/NZS 4159.1:1994

    Australian/New Zealand Standard

    Information technologyFontinformation interchange

    Part 1: Architecture

    First published as Joint Standard AS/NZS 4159.1:1994.

    PUBLISHED JOINTLY BY:

    STANDARDS AUSTRALIA1 The Crescent,Homebush NSW 2140 Australia

    STANDARDS NEW ZEALANDLevel 10, Radio Ne w Zealand House,155 The Terrace,Wellington 6001 New Zealand

    ISBN 0 7262 8695 8

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    PREFACE

    This Standard was prepared by the Joint Australia/New Zealand Standards Committee IT/1, onInformation SystemsInterconnection. It is identical with, and has been reproduced from,

    ISO/IEC 9541-1:1991, Information technology Font information interchange, Part 1: Architecture .

    Technical Corrigendum 1:1992, is bound at the r ear of this Standard. T ext affected is marked by a

    marginal bar.

    This Joint Standard is one of a series of Open Systems Interconnection (OSI) Standards which arecurrently under development. Since OSI Standards are developmental, there may be some minor

    difficulties encountered in their implementation. For this reason, Standards Australia will be

    providing, through the OSI Help Desk, a service to coordinate and disseminate informationconcerning difficulties which are identified in using this Joint Standard.

    Under arr angements made between Standards Australia/Standards New Zealand and the international

    Standards bodies, ISO and I EC, as well as certain other Standards organizations, users of this JointStandard are advised of the following:

    (a) In Australia, copyright is vested in Standards Australia. In New Zealand, copyright is vestedin Standards New Zealand.

    (b) The number of this Joint Standard is not reproduced on each page; its identity is shown onlyon the cover and title pages.

    For the purpose of this Joint Standard, the ISO/IEC text should be modified as follows:

    (i) Terminology The words Australian Standard, New Zealand Standard or JointAustralian/New Zealand Standard should replace the words International Standard wherever

    they appear.

    (ii) References The references to International Standards should be replaced by references to thefollowing Australian/New Zealand Standards:

    Refer ence to International Standard

    or other Publication

    Australian/New Zealand Standard

    ISO AS

    646 In for mation pr oce ss ing I SO 7- bitcoded character set for information

    interchange

    1776 Information processing7-bit codedcha ract er set f or inf or mat ion

    interchange

    3166 Codes for the representation of namesof countries

    2632 Codes for the representation of namesof countries

    6523 Data interchange Structures for the

    identification of organizations

    8824 I n fo r ma ti on te ch no lo gy O p enS y st e m s I n t e r con n ec t i on S p e ci -

    fication of Abstract Syntax Notation

    One (ASN.1)

    3625 I n fo r ma ti on te ch no lo gy O p enS y st e m s I n t e r con n ec t i on S p e ci -

    fication of Abstract Syntax Notation

    One (ASN.1)

    ISO/IEC AS/NZS

    9070 I nf o rm a ti on t ec hn ol og y S G M Ls u pp o r t f a c i l i t ie s R e g i s tr a t i o n

    procedures for public text owner

    identifiers

    4097 I nf or m at io n p roc es sin g S G MLs u pp o r t f a c i l i t ie s R e g i s tr a t i o n

    procedures for public text owner

    identifiers

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    ISO/IEC AS/NZS

    9541 I n fo r m at io n t ec hn ol o gy F o ntinformation interchange

    4159 I n fo r m at io n t ec hn ol o gy F o ntinformation interchange

    9541-2 Pa rt 2: I nterc hange For mat 4159.2 Pa rt 2: I nterc hange for mat

    Copyright STANDARDS AUSTRALIA/ STANDARDS NEW ZEALAND

    Users of Standards are reminded that copyright subsists in all Standards Australia and Standards New Zealand publications and software.Except where the Copyright Act allows and except where provided for below no publications or software produced byStandards Australia or Standards New Zealand may be reproduced, stored in a retrieval system in any form or transmitted by any meanswithout prior permission in writing from Standards Australia or Standards New Zealand. Permission may be conditional on an appropriateroyalty payment. Australian requests for permission and information on commercial software royalties should be directed to the headoffice of Standards Australia. New Zealand requests should be directed to Standards New Zealand.

    Up to 10 percent of the technical content pages of a Standard may be copied for use exclusively in-house by purchasers of theStandard without payment of a royalty or advice to Standards Australia or Standards New Zealand.

    Inclusion of copyright material in computer software programs is also permitted without royalty payment provided such programsare used exclusively in-house by the creators of the programs.

    Care should be taken to ensure that material used is from the current edition of the Standard and that it is updated whenever the Standard

    is amended or revised. The number and date of the Standard should therefore be clearly identified.The use of material in print form or in computer software programs to be used commercially, with or without payment, or in commercialcontracts is subject to the payment of a royalty. This policy may be varied by Standards Australia or Standards New Zealand at any time.

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    CONTENTS

    Page

    1 S cope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

    2 Normative references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

    3 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

    4 Notation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

    5 Data types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

    5.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

    5.2 Properties and property-lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

    5.3 Values and value-l ists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

    5.4 Structured-names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

    5.4.1 ISO/IEC 9541 and ISO/IEC 10036 names . . . . . . . . . . . . . . . . . . . . . . . . . . 5

    5.4.2 ICD0010 names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

    5.5Formal notation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    6

    6 Glyph identif ication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

    6.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

    6.2 ISO/IEC 10036 glyph names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

    6.3 ISO/IEC 10036 glyph registration authority . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

    7 Glyph collection identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

    7.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

    7.2 ISO/IEC 10036 glyph collection names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

    7.3 ISO/IEC 10036 glyph collection registration authority . . . . . . . . . . . . . . . . . . . 9

    8 Font resource . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

    8.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

    8.1.1 Font resource name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

    8.1.2 Font resource description properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

    8.1.3 Font resource modal properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

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    8.1.3.1 Writing mode properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

    8.1.3.2 Glyph metrics properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

    8.1.4 Glyph shape representation properties . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

    8.1.5 Formal data type definition of a font resource . . . . . . . . . . . . . . . . . . . . . . 10

    8.2 Glyph coordinate system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

    8.3 Linear scaling model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

    8.4 Extensibil ity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

    8.5 Specification of font resource name (FONTNAME) . . . . . . . . . . . . . . . . . . . . 13

    8.6 Description of fon t resource description properti es (FONTDESCRIPTION) . . . 13

    8.6.1 Data Version (DATAVERSION) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

    8.6.2 Standard Version (STANDARDVERSION) . . . . . . . . . . . . . . . . . . . . . . . . . 14

    8.6.3 Data Source (DATASOURCE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

    8.6.4 Data Copyright (DATACOPYRIGHT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

    8.6.5 Design Source (DSNSOURCE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

    8.6.6 Design Copyright (DSNCOPYRIGHT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

    8.6.7 Relative Rational Units (RELUNITS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

    8.6.8 Typeface Name (TYPEFACE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

    8.6.9 Font Family Name (FONTFAMILY) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

    8.6.10 Posture (POSTURE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

    8.6.11 Posture Angle (POSTUREANGLE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

    8.6.12 Weight (WEIGHT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

    8.6.13 Proportionate Width (PROPWIDTH) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

    8.6.14 Structure (STRUCTURE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

    8.6.15 Design Group (DSNGROUP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

    8.6.16 Glyph Complement (GLYPHCOMP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

    8.6.16.1 Number of Glyphs (NUMGLYPHS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

    8.6.16.2 Included Glyph Collections (INCGLYPHCOLS) . . . . . . . . . . . . . . . . . . . 20

    8.6.16.3 Excluded Glyph Collections (EXCGLYPHCOLS) . . . . . . . . . . . . . . . . . . 20

    8.6.16.4 Included Glyphs (INCGLYPHS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

    8.6.16.5 Excluded Glyphs (EXCGLYPHS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

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    8.6.17 Design Size, Recommended Minimum and Maximum Size

    (DSNSIZE, MINSIZE, MAXSIZE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

    8.6.18 Capital Height (CAPHEIGHT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

    8.6.19 Lowercase Height (LCHEIGHT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

    8.6.20 Minimum Feature Size (MINFEATSZ) . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

    8.6.21 Nominal Capital Stem Width (NOMCAPSTEMWIDTH) . . . . . . . . . . . . . . . 22

    8.6.22 Nominal Lowercase Stem Width (NOMLCSTEMWIDTH) . . . . . . . . . . . . . . 23

    8.6.23 Nominal Writing Mode (NOMWRMODE) . . . . . . . . . . . . . . . . . . . . . . . . . . 23

    8.7 Specification of font resource modal properties (WRMODES) . . . . . . . . . . . . 23

    8.7.1 Writing Mode (WRMODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

    8.7.1.1 Writing Mode Name (WRMODENAME) . . . . . . . . . . . . . . . . . . . . . . . . . . 26

    8.7.1.2 Nominal Escapement Direction (NOMESCDIR) . . . . . . . . . . . . . . . . . . . . 26

    8.7.1.3 Escapement Class (ESCCLASS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

    8.7.1.4 Average Escapement (AVGESCX, AVGESCY) . . . . . . . . . . . . . . . . . . . . 27

    8.7.1.5 Average Lowercase Escapement (AVGLCESCX, AVGLCESCY) . . . . . . . . 27

    8.7.1.6 Average Capital Escapement (AVGCAPESCX, AVGCAPESCY) . . . . . . . . 28

    8.7.1.7 Tabular Escapement (TABESCX, TABESCY) . . . . . . . . . . . . . . . . . . . . . 28

    8.7.1.8 Maximum Font Extents (MAXFONTEXT) . . . . . . . . . . . . . . . . . . . . . . . . . 28

    8.7.1.9 Sectors-Pairwise Escapement Adjustment Descriptions (SECTORS) . . . . 29

    8.7.1.10 Escapement Adjustments (ESCADJS) . . . . . . . . . . . . . . . . . . . . . . . . . . 29

    8.7.1.10.1 Escapement Adjustment (ESCADJ) . . . . . . . . . . . . . . . . . . . . . . . . . . 30

    8.7.1.10.1.1 Escapement Adjustment Mode Name (ESCADJNAME) . . . . . . . . . . . 30

    8.7.1.10.1.2 Class-Pairwise Escapement Adjustments (CPEA) . . . . . . . . . . . . . . 30

    8.7.1.10.1.3 Scale Escapement Correction (SEC) . . . . . . . . . . . . . . . . . . . . . . . . 32

    8.7.1.11 Recommend ed Pai rwise Escapement Adjustment Size(MINESCADJSZE, MAXESCADJSZE) . . . . . . . . . . . . . . . . . . . . . . . . . . 33

    8.7.1.12 Scores (SCORES) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

    8.7.1.12.1 Score (SCORE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

    8.7.1.12.1.1 Score Name (SCORENAME) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

    8.7.1.12.1.2 Score Position Offset (SCOREOFFSETX, SCOREOFFSETY) . . . . . . 35

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    8.7.1.12.1.3 Score Thickness (SCORETHICK) . . . . . . . . . . . . . . . . . . . . . . . . . . 35

    8.7.1.13 Variant Scripts (VSCRIPTS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

    8.7.1.13.1 Variant Script (VSCRIPT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

    8.7.1.13.1.1 Variant Script Name (VSNAME) . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

    8.7.1.13.1.2 Variant Script Position Offset (VSOFFSETX, VSOFFSETY) . . . . . . . 36

    8.7.1.13.1.3 Variant Script Anamorphic Scale Factors (VSSCALEX, VSSCALEY) . 37

    8.7.1.14 Recommended Minimum Alignment Line-to-Line Spacing Distance(MINLINESP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

    8.7.1.15 Recommended Minimum and Maximum Anamorphic Scale Factors

    (MINANASCALE, MAXANASCALE) . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

    8.7.1.16 Nominal Alignment Mode (NOMALIGN) . . . . . . . . . . . . . . . . . . . . . . . . . 38

    8.7.1.17 Alignment Modes (ALIGNMODES) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

    8.7.1.17.1 Alignment Mode (ALIGN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

    8.7.1.17.1.1 Alignment Mode Name (ALIGNNAME) . . . . . . . . . . . . . . . . . . . . . . . 39

    8.7.1.17.1.2 Alignment Line Position Offset (ALIGNOFFSETX, ALIGNOFFSETY) . 40

    8.7.1.17.1.3 Alignment Mode Anamorphic Scale Factors (ALIGNSCALEX,

    ALIGNSCALEY) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

    8.7.1.18 Copy Fit Techniques (COPYFITS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

    8.7.1.18.1 Copy Fit Technique (COPYFIT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

    8.7.1.18.1.1 Copy Fit Technique Name (COPYFITNAME) . . . . . . . . . . . . . . . . . . 42

    8.7.1.18.1.2 Copy Fit Measure (COPYFITMEASURE) . . . . . . . . . . . . . . . . . . . . . 42

    8.7.1.19 Design, Recommended Minimum and Maximum Wordspace Adjustments(DSNWORDADD, DSNWORDAMPL, MINWORDADD,MINWORDAMPL, MAXWORDADD, MAXWORDAMPL) . . . . . . . . . . . . . 42

    8.7.1.20 Design, Recommended Minimum and Maximum Letterspace Adjustments(DSNLETTERADD, DSNLETTERAMPL, MINLETTERADD,MINLETTERAMPL, MAXLETTERADD, MAXLETTERAMPL) . . . . . . . . . . 43

    8.8 Specification of font resource glyph metrics properties (GLYPHMETRICS) . . . 44

    8.8.1 Glyph Metric (GMETRIC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

    8.8.1.1 Glyph Name (GNAME) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

    8.8.1.2 Glyph Position and Escapement Points (PX, PY, EX, EY) . . . . . . . . . . . . 45

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    8.8.1.3 Glyph Extents (EXT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

    8.8.1.4 Glyph Ligature Relationships (LGS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

    8.8.1.4.1 Ligature (LG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

    8.8.1.4.1.1 Ligature Name (LGN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

    8.8.1.4.1.2 Ligature Successor Names (LGSN) . . . . . . . . . . . . . . . . . . . . . . . . . . 49

    8.8.1.5 Glyph Pairwise Escapement Adjustments (PEAS) . . . . . . . . . . . . . . . . . . 49

    8.8.1.5.1 Pairwise Escapement Adjustment (PEA) . . . . . . . . . . . . . . . . . . . . . . . 49

    8.8.1.5.1.1 Pairwise Escapement Adjustment Name (PEAN) . . . . . . . . . . . . . . . . 50

    8.8.1.5.1.2 Pairwise Escapement Adjustment (PEAX, PEAY) . . . . . . . . . . . . . . . . 50

    8.8.1.5.1.3 Sector-Pairwise Escapement Adjustment Extents (SPEAFORWDX,

    SPEAFORWDY, SPEABACKWDX, SPEABACKWDY) . . . . . . . . . . . . 51

    8.8.1.6 Class-Pairwise Escapement Adjustment Class Indicator (CPEAI) . . . . . . . 52

    8.8.1.7 Escapement Adjustment Indicator (EAI) . . . . . . . . . . . . . . . . . . . . . . . . . 53

    8.8.1.8 Minimum and Maximum Adjusted Escapement (MINEX, MINEY,MAXEX, MAXEY) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

    Annexes

    A Typeface design grouping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

    B Font concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

    B.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

    B.2 Font resource environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

    B.2.1 Font production . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

    B.2.2 Font resource installation, storage and access . . . . . . . . . . . . . . . . . . . . . 76

    B.3 Application environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

    B.3.1 Text processing systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

    B.3.2 Document processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

    B.3.2.1 Document editing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

    B.3.2.2 Document formatting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

    B.3.2.3 Document presentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

    B.3.3 Font referencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

    B.3.4 Glyph referencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

    B.3.5 Glyph positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

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    ix

    Page

    B.3.6 Glyph shape presentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

    Alphabetical index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

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    x

    NOTES

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