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MKII CONTEXT CONTEXT The history of
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XXI The luacation of TEX and ConTEX
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4 Introduction
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Keep in mind that the functionality
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tricky part of this conversion is t
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prologues := 1 ; mpprocset := 1 ; W
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code. However, the signicantly larg
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\input zip:///somezipfile.zip?name=
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ecause we could move all kind of po
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If an acrhive is not a real TEX tre
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luatools --generate This command wi
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I know that it sounds a bit messy,
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By combining Lua with TEX, we can d
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26 An example: CalcMath
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collapser was written. In the (pre)
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30 Going utf
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In practice we prefer a more abstra
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of making that table accessible for
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Therefore, it will be no surprise t
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{"special","pdf: 1 0 0 rg"}, {"font
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some neat feature of \TeX, once you
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OPENTYPE 144 17.571.732 ENC 268 782
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The font denition callback intercep
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When processing a not so large le b
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letter 105 i spacer 32 letter 116 t
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egister 2 3190 dimen other_char 50
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This example uses an active charact
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function tex.printlist(data) callba
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56 Token speak
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Interesting is that upto now I didn
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do end local function nextbyte(f) r
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\ctxlua{collectgarbage("setstepmul"
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Collecting tokens can take place in
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where TEX has to convert to and fro
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When experimenting with the new imp
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It will be clear that here we colle
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72 Nodes and attributes t={ attr={
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Let's end with an observation. Attr
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end end tex.sprint("\\setbox0=\\hbo
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78 Dirty tricks
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Those who read the previous chapter
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In a similar way support for xml wi
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Undoubtely this will have a huge im
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86 Going beta
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We like testing LuaTEX's open type
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k a el--rie am, ld p n th re, l ak
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his or her font). As said, it also
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["tag"]="calt", } }, ["name"]="ks_l
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When testing the implementation we
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Mr. rmn p Of course we have to test
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ه مَ ه لِ دْ
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لاۤئِهٰٖا لاۤئِه
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َ غْتَرِفٌُم عْتَر
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وَْر وةَ، ٰ ي كَ
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white black t-green a=1.000 t=0.500
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Palets work with names: \definepale
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• support mechanism are under con
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So, effectively we set a box, and e
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116 Colors redone
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• Spaces at the end of the line (
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兡 也 包 因 沘 氓 侷 柵 苗
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〉 + 々 = 〉々 〉々 〉々
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124 Chinese, Japanese and Korean, a
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for k, v in pairs(_G) do print(k, v
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} [4] = 200 I mistakingly assumed t
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130 Optimization
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xetex metapost We can also
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\startluacode xml.sprint(xml.first(
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a[position()=5] maybe a[first()] ma
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Now we have: okay okay okay Repla
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\startxmlsetups xml:mysetups \xmlse
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c1d1 c2d2 d3 d4 d5 Here com
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c2 d3 b/c[1] c1 c2 a/c[1] d3 a/c[-1
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The code in traditional TEX that de
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and this is where MkIV hooks in ist
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con-text == [c][o](pre=n-,post=,rep
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luastate_bytes min:37009927, max:87
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dyn_used min:478158, max:554800, pa
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str_ptr min:2131299, max:2136226, p
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if_stack min:0, max:13, pages:326 k
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pdf_refximage min:0, max:7, pages:3
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162 Collecting garbage
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\definefontfeature[coward] [kern=ye
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We do our tests of a variant of Con
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--make or --ini --run or --fmt= --l
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mtxrun --script font --list --patte
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Opening up TEX started with rewriti
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One can question if a properly work
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ound to fonts (instead of being com
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• TEX primitives Access to and co
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• Open an instance using mplib.ne
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is dened in the les whose names sta
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}, }, ["pen"]={ { ["left_x"]=2.4548
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local tx, ty = p.x_coord, p.y_coord
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\startreusableMPgraphic{test} fill
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vardef textext(expr str) = image (
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local factor = 65536*(7200/7227) fu
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end return t This is a typical exam
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The user interface is downward comp
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key concept. There are few accessib
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\directlua 0 { for i=1,10 do tex.pr
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} end And still it's not okay, sinc
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eason why such code normally is not
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- Page 240 and 241: \start \textdir TLT one \bidilro tw
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- Page 278 and 279: 276 The order of things
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- Page 284 and 285: As you can see, it is possible to a
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ut this now refers to an index in a
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On the agenda is xing some ‘hyphe
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We also use the opportunity to slow
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Math. Because the TEX Gyre math pro
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Tracing on Taco's machine has shown
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node list callback tasks - 4 unique
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pdftex 1.28 (23) 2.07 (144) 6.96 (2
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July 19, 2009 - The number of files
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July 19, 2009 - The relative number
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