2020-07-01 14:28:22 +02:00
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% To be loaded *after* microtype
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%
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% Patching \pickup@font to emulate LuaTeX's font expansion interface using \adjustspacing...
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\RequirePackage{microtype}% Just to ensure it isn't loaded in the wrong position. Normally this shouldn't be necessary
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\def\luametalatex@@setexpansion#-#1#2#3#-\relax{%
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\adjustspacingstretch #1
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\adjustspacingshrink #2
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\adjustspacingstep #3
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}%
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\newluafunction\luametalatex@@expandglyphsinfont
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\protected\luadef\pdffontexpand\luametalatex@@expandglyphsinfont
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\def\luametalatex@@everyjobandnow#1{\toksapp\everyjob{#1}#1}%
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%
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\begingroup
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\catcode`\!=\catcode`\%
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\catcode`\%=12
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\expanded{!
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\endgroup
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\def\noexpand\pickup@font{!
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\unexpanded\expandafter{\pickup@font
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2020-07-02 02:06:58 +02:00
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\expandafter\expandafter\expandafter\luametalatex@@setexpansion\csname pickup@font@@hook@luametalatex@microtype@\the\fontid\font@name\endcsname{-1}{-1}{-1}\relax
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2020-07-01 14:28:22 +02:00
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}!
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}!
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\noexpand\luametalatex@@everyjobandnow{\noexpand\directlua{!
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lua.get_functions_table()[\the\luametalatex@@expandglyphsinfont] = function()
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token.put_next(token.create'fontid')
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local font = token.scan_int()
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local stretch = token.scan_int()
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local shrink = token.scan_int()
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local step = token.scan_int()
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token.set_macro('pickup@font@@hook@luametalatex@microtype@' .. font, string.format("{}{%i}{%i}{%i}", stretch, shrink, step), "global")
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end
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}}
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}%
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