Hagen - Pragma ADE

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

38 Modes ا خǇَ﮲ ف﮲َ step 9 [+TRT] step 10 step 11 feature 'salt', chain 'ks_arab_l_225_s', sub 'ss_l_574', lookup 'ss_l_574_s', replacing single U+F0006 (Alif.final) by U+F0302 (Alif.alt2_final) U+F029D:ف U+FBB2:﮲ U+64E:َ U+F051B:خǇ U+FBB2:﮲ U+64E:َU+F0302:ا feature 'curs', lookup 'ca_arab_l_0_a_1', moving U+F029D (Faa.FJ_im) to U+F051B (Khaa.LJ_im_j1) cursive (-11.8125pt,-9.84375pt) using anchor Cursive-1 and bound 1 in rlmode -1 feature 'curs', lookup 'ca_arab_l_0_a_0', moving U+F051B (Khaa.LJ_im_j1) to U+F0302 (Alif.alt2_final) cursive (-7.85156pt,0pt) using anchor Cursive-0 and bound 2 in rlmode -1 ا خǇَ﮲ ف﮲َ [+TRT] U+F029D:ف U+FBB2:﮲ U+64E:َ U+F051B:خǇ U+FBB2:﮲ U+64E:َU+F0302:ا feature 'mark', lookup 'mb_arab_l_16_a_1', anchor Anchor-5, bound 1, anchoring mark U+0FBB2 (Onedotabove) to basechar U+F029D (Faa.FJ_im) => (1.89844pt,1.59375pt) feature 'mark', lookup 'mb_arab_l_16_a_1', anchor Anchor-5, bound 2, anchoring mark U+0FBB2 (Onedotabove) to basechar U+F051B (Khaa.LJ_im_j1) => (5.48438pt,0.11719pt) ا خǇ﮲ َ [+TRT] ف﮲ َ U+F029D:ف U+FBB2:﮲ U+64E:َ U+F051B:خǇ U+FBB2:﮲ U+64E:َU+F0302:ا feature 'mark', lookup 'mb_arab_l_26_a_0', anchor Anchor-8, bound 1, anchoring mark U+0064E (Fathah) to basechar U+F029D (Faa.FJ_im) => (5.46094pt,-2.92969pt) feature 'mark', lookup 'mb_arab_l_26_a_0', anchor Anchor-8, bound 2, anchoring mark U+0064E (Fathah) to basechar U+F051B (Khaa.LJ_im_j1) => (6.39844pt,-4.35938pt)
esult ا خǇ﮲َ ف﮲َ [+TRT] U+64E:َU+F0302:ا U+F029D:ف U+FBB2:﮲ U+64E:َ U+F051B:خǇ U+FBB2:﮲ What we see here is a stepwise substitution process, sometimes based on a contextual analysis, followed by positioning. The coloring concerns the outcome of the analysis which in this case flags initial, final, medial and isolated characters. The starting point of this Arabic word is visualized in figure 2.7 and as expected we see no discretionary nodes here. The result as seen in figure 2.8 has (interestingly) no kerns as all replacements happen via offsets in the glyph node. 2.5 Auto mode dir +TRT glyph 256 font 48: U+00641: ف glyph 256 font 48: U+0064E: َ glyph 256 font 48: U+0062E: خ glyph 256 font 48: U+0064E: َ glyph 256 font 48: U+00627: ا Figure 2.7 The Arabic input ‘ ا َخَف’ before rendering. Base mode is lean and mean and relatively fast while node mode is more powerful and slower. So how do you know what to choose? The safest bet is to use node mode for everything. In ConT E Xt however, we also have the so called auto mode. In that case there is some analysis going on that chooses between base mode and node mode depending on the boundary conditions of script and language and there are specific demands in terms of feature processing. So, auto mode will resolve to base or node mode. 2.6 None mode Sometimes no features have to be applied at all. A good example is verbatim. There you don’t want ligatures, kerning or fancy substitutions. Contrary to what you might 39 Modes
Page 1: explaining luatex and mkiv Fonts ou
Page 4 and 5: 2 Contents 5.4 Goodies 73 5.5 Analy
Page 6 and 7: 4 Contents
Page 8 and 9: 6 Introduction In this manual we wi
Page 10 and 11: 8 Font formats a b g l q . ; ? ffi
Page 12 and 13: 10 Font formats When T E X ships ou
Page 14 and 15: 12 A.4 A.3 Font formats multiple ac
Page 16 and 17: 14 Font formats can be rules that t
Page 18 and 19: 16 Font formats /fonts/tfm/vendor/t
Page 20 and 21: 18 Modes raw tfm normalized tfm raw
Page 22 and 23: 20 Modes shown next: kern cyrl dflt
Page 24 and 25: 22 Modes ccmp cyrl mkd абвгде
Page 26 and 27: 24 Modes dlig latn gag abcdefghijkl
Page 28 and 29: 26 Modes liga latn nsm abcdefghijkl
Page 30 and 31: 28 Modes salt latn mol abcdefghijkl
Page 32 and 33: 30 Modes glyph 256 font 42: U+00074
Page 38 and 39: 36 Modes optimizer that can apply a
Page 42 and 43: 40 Modes dir +TRT glyph 256 font 49
Page 44 and 45: 42 Modes and now we get: 123 normal
Page 46 and 47: 44 Modes MkIV run can be faster tha
Page 48 and 49: 46 Lookups \font \MyFontG = lmr12 s
Page 50 and 51: 48 Lookups 3.4 Name Say that we wan
Page 52 and 53: 50 Lookups We add another specifier
Page 54 and 55: 52 Methods \definefont [MyFont] [Bo
Page 56 and 57: 54 Methods } copyright = "ConTeXt d
Page 58 and 59: 56 Features of all, all we get to s
Page 60 and 61: 58 Features in base mode. A single
Page 62 and 63: 60 Features accumulate within a wor
Page 64 and 65: 62 Features features analyze=yes, c
Page 66 and 67: 64 Features \definedfont[lmroman10-
Page 68 and 69: 66 Features single substitutions or
Page 70 and 71: 68 F -0.492 eatures result ffi feat
Page 72 and 73: 70 Features font 80: lmroman10-regu
Page 74 and 75: 72 Features font 46: cambria.ttf @
Page 76 and 77: 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
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88 Features } }, When defining the
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90 Features local defaultfraction =
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92 Features } } ["LMRoman-Bold"] =
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94 Features In fact, in addition to
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96 Features } This time the applica
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98 Features step 1 I don't wanna kn
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100 Features If you’re lucky your
Page 104 and 105:
102 Scripts
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However, when we go the other way,
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122 Math the regular a--z character
Page 127 and 128:
While there are lots of text fonts,
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8 Extensions 8.1 Introduction One o
Page 131:
[default] [itlc=5] This is demonstr
Page 134 and 135:
132 Extensions \definefontfeature [
Page 136 and 137:
134 Extensions characters to improv
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136 Extensions U+00079 0.05 y 0.05
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138 Extensions protrusion classes T
Page 142 and 143:
140 Extensions [fonts.composing.def
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142 } Extensions top = { x = -250,
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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)
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152 Appendix Notice Copyright 2003-
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154 Appendix ... KPX seven.prop hyp
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156 Appendix name = , features = ,
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158 Appendix [] = "", ... default =
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160 Appendix A.10 Discretionary nod
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Hagen - Pragma ADE

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