The microtype package

IMPLEMENTATION: Preliminaries 39202 \ifnum\pdftexversion = 140203 \ifnum\pdftexrevision < 4204 \def\MT@pdftex@no{6}205 \fi206 \else207 \ifnum\pdftexversion < 140208 \def\MT@pdftex@no{5}209 \ifnum\pdftexversion < 130210 \def\MT@pdftex@no{4}211 \ifnum\pdftexversion < 120212 \def\MT@pdftex@no{3}213 \ifnum\pdftexversion = 14214 \ifnum \expandafter`\pdftexrevision < `h215 \def\MT@pdftex@no{2}216 \ifnum \expandafter`\pdftexrevision < `f217 \def\MT@pdftex@no{1}218 \fi219 \fi220 \else221 \ifnum\pdftexversion < 14222 \def\MT@pdftex@no{1}223 \fi224 \fi225 \fi226 \fi227 \fi228 \fi229 \MT@dinfo@nl{0}{pdftex no.: \MT@pdftex@no}230 \MT@xetex@no\MT@luatex@noTEX supports character protrusion since version 0.9997.EX231 232 \MT@dinfo@nl{0}{this is xetex (\the\XeTeXversion\XeTeXrevision)}233 \ifdim 0\XeTeXrevision pt < 0.9997pt234 \def\MT@xetex@no{1}235 \else236 \def\MT@xetex@no{2}237 \fi238 \MT@dinfo@nl{0}{xetex no.: \MT@xetex@no}239 Cases for LuaTEX (\luatexversion ought to have been enabled by the format):0: N/A1: LuaTEX (< 0.36)2: + \directlua without state number (≥ 0.36)3: + \letterspacefont (≥ 0.62).240 241 \MT@dinfo@nl0{this is luatex (\the\luatexversion)}\MT@luaCommunicate with lua. Beginning with LuaTEX 0.36, \directlua no longer requiresa state number.242 \def\MT@lua{\directlua}243 \def\MT@luatex@no{3}244 \ifnum\luatexversion