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$Integrating TEX, MetaPost, JavaScript and PDF - Pragma ADE$

126 Math tex/texmf-fonts/fonts/data/lucida Of course you need to run mtxrun --generate afterwards so that the files can be found. Tracing and characters coverage will be discussed here as soon as the styles that are used for them are normalized.
8 Extensions 8.1 Introduction One of the benefits of using T E X is that you can add your own features and try to optimize the look and feel. Of course this can also go wrong and output can look pretty awful when you don’t know what you’re doing, but on the average it works out well. In many aspects the move to an Unicode data path and OpenType fonts is a good one and solves a lot of problems with traditional T E X engines and helps us to avoid complex and ugly hacks. But, if you look into the source code of ConT E Xt you will notice that there’s still quite some complex coding needed. This is because we want to control mechanisms, even if it’s only for dealing with some border cases. It’s also the reason why LuaT E X is what it is: an extensible engine, building on tradition. As always with T E X, fonts are an area where many tuning happens and this is also true in ConT E Xt. In this chapter some of the extensions will be discussed. Some extensions run on top of the (rather generic) feature mechanism and some are using dedicated code. 8.2 Italics Although OpenType fonts are more rich in features than traditional T E X and Type1 fonts, one important feature is missing: italic correction. This might sound strange but you need to keep in mind that in practice it’s a feature that needs to be applied manually. test {\it test\/} test It is possible to automate this mechanism and this is what the \em command does in MkII: test {\em test} test This command knows that it switches to italic (or slanted) and when used nested it knows to switch back. It also knows if a bold italic or slanted font is used. Therefore it can add italic correction between an italic and upright shape. An italic correction is bound to a glyph and bound to a font. In figure 8.1 we see how an italic shape extends out of the bounding box. This is not the case in Dejavu: watch figure 8.2. test test Latin Modern Roman Regular Latin Modern Roman Italic Figure 8.1 Italic overshoot in Latin Modern. 127 Extensions
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explaining luatex and mkiv Fonts ou
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2 Contents 5.4 Goodies 73 5.5 Analy
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4 Contents
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6 Introduction In this manual we wi
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8 Font formats a b g l q . ; ? ffi
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10 Font formats When T E X ships ou
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12 A.4 A.3 Font formats multiple ac
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14 Font formats can be rules that t
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16 Font formats /fonts/tfm/vendor/t
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18 Modes raw tfm normalized tfm raw
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20 Modes shown next: kern cyrl dflt
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22 Modes ccmp cyrl mkd абвгде
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24 Modes dlig latn gag abcdefghijkl
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26 Modes liga latn nsm abcdefghijkl
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28 Modes salt latn mol abcdefghijkl
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30 Modes glyph 256 font 42: U+00074
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36 Modes optimizer that can apply a
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38 Modes ا خǇَ﮲ ف﮲َ step
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40 Modes dir +TRT glyph 256 font 49
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42 Modes and now we get: 123 normal
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44 Modes MkIV run can be faster tha
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46 Lookups \font \MyFontG = lmr12 s
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48 Lookups 3.4 Name Say that we wan
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50 Lookups We add another specifier
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52 Methods \definefont [MyFont] [Bo
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54 Methods } copyright = "ConTeXt d
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56 Features of all, all we get to s
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58 Features in base mode. A single
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60 Features accumulate within a wor
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62 Features features analyze=yes, c
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64 Features \definedfont[lmroman10-
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66 Features single substitutions or
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68 F -0.492 eatures result ffi feat
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70 Features font 80: lmroman10-regu
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72 Features font 46: cambria.ttf @
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74 Features } } This goodie file is
Page 78 and 79: 76 Features { name = "msbm10.tfm",
Page 80 and 81: 78 Features \starttypescript[somefo
Page 82 and 83: 80 Features \setupbodyfont [mojcasf
Page 84 and 85: 82 Features } normalweight = "extra
Page 86 and 87: 84 Features "QF.waqf", "SKTH.waqf",
Page 88 and 89: 86 Features featureset=smallcaps] O
Page 90 and 91: 88 Features } }, When defining the
Page 92 and 93: 90 Features local defaultfraction =
Page 94 and 95: 92 Features } } ["LMRoman-Bold"] =
Page 96 and 97: 94 Features In fact, in addition to
Page 98 and 99: 96 Features } This time the applica
Page 100 and 101: 98 Features step 1 I don't wanna kn
Page 102 and 103: 100 Features If you’re lucky your
Page 104 and 105: 102 Scripts
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Page 124: 122 Math the regular a--z character
Page 127: While there are lots of text fonts,
Page 131: [default] [itlc=5] This is demonstr
Page 134 and 135: 132 Extensions \definefontfeature [
Page 136 and 137: 134 Extensions characters to improv
Page 138 and 139: 136 Extensions U+00079 0.05 y 0.05
Page 140 and 141: 138 Extensions protrusion classes T
Page 142 and 143: 140 Extensions [fonts.composing.def
Page 144 and 145: 142 } Extensions top = { x = -250,
Page 146 and 147: 144 Extensions
Page 148 and 149: 146 Hooks
Page 150 and 151: 148 ) Appendix (LIG C l O 10) (KRN
Page 152 and 153: 150 ) Appendix (KRN O 177 R 0.056)
Page 154 and 155: 152 Appendix Notice Copyright 2003-
Page 156 and 157: 154 Appendix ... KPX seven.prop hyp
Page 158 and 159: 156 Appendix name = , features = ,
Page 160 and 161: 158 Appendix [] = "", ... default =
Page 162: 160 Appendix A.10 Discretionary nod
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