The microtype package

IMPLEMENTATION: Font setup 69\MT@sp@split@val\MT@set@sp@heirs\MT@set@all@sp\MT@reset@sp@codes\MT@reset@sp@codes@\MT@preset@spIf unit=space, \MT@get@space@unit will be defined to fetch the correspondingfontdimen (2 for the first, 3 for the second and 4 for the third argument).1548 \def\MT@sp@split@val#1,#2,#3\relax{%1549 \def\@tempb{#1}%1550 \MT@ifempty\@tempb\relax{%1551 \MT@get@space@unit2%1552 \MT@scale@to@em1553 \knbscode\MT@font\MT@char=\@tempcntb1554 \MT@dinfo@nl{4}{;;; knbs (\MT@char): \number\knbscode\MT@font\MT@char: [#1]}%1555 }%1556 \def\@tempb{#2}%1557 \MT@ifempty\@tempb\relax{%1558 \MT@get@space@unit3%1559 \MT@scale@to@em1560 \stbscode\MT@font\MT@char=\@tempcntb1561 \MT@dinfo@nl{4}{;;; stbs (\MT@char): \number\stbscode\MT@font\MT@char: [#2]}%1562 }%1563 \def\@tempb{#3}%1564 \MT@ifempty\@tempb\relax{%1565 \MT@get@space@unit4%1566 \MT@scale@to@em1567 \shbscode\MT@font\MT@char=\@tempcntb1568 \MT@dinfo@nl{4}{;;; shbs (\MT@char): \number\shbscode\MT@font\MT@char: [#3]}%1569 }%1570 \MT@ifdefined@c@T\MT@sp@inh@name{%1571 \MT@ifdefined@n@T{MT@inh@\MT@sp@inh@name @\MT@char @}{%1572 \MT@exp@cs\MT@map@tlist@c{MT@inh@\MT@sp@inh@name @\MT@char @}\MT@set@sp@heirs1573 }%1574 }%1575 }1576 \def\MT@set@sp@heirs#1{%1577 \knbscode\MT@font#1=\knbscode\MT@font\MT@char1578 \stbscode\MT@font#1=\stbscode\MT@font\MT@char1579 \shbscode\MT@font#1=\shbscode\MT@font\MT@char1580 \MT@dinfo@nl{2}{-- heir of \MT@char: #1}%1581 \MT@dinfo@nl{4}{;;; knbs/stbs/shbs (#1): \number\knbscode\MT@font\MT@char/%1582 \number\stbscode\MT@font\MT@char/\number\shbscode\MT@font\MT@char}%1583 }1584 \def\MT@set@all@sp#1#2#3{%1585 \MT@dinfo@nl{3}{-- knbs/stbs/shbs: setting all to #1/#2/#3}%1586 \let\MT@temp\@empty1587 \MT@ifempty{#1}\relax{\g@addto@macro\MT@temp{\knbscode\MT@font\@tempcnta=#1\relax}}%1588 \MT@ifempty{#2}\relax{\g@addto@macro\MT@temp{\stbscode\MT@font\@tempcnta=#2\relax}}%1589 \MT@ifempty{#3}\relax{\g@addto@macro\MT@temp{\shbscode\MT@font\@tempcnta=#3\relax}}%1590 \MT@do@font\MT@temp1591 }1592 \def\MT@reset@sp@codes@{\MT@set@all@sp\z@\z@\z@}1593 \let\MT@reset@sp@codes\relax\MT@preset@sp@ 1594 \def\MT@preset@sp{%1595 \expandafter\expandafter\expandafter\MT@preset@sp@1596 \csname MT@sp@c@\MT@sp@c@name @preset\endcsname\@nil1597 }1598 \def\MT@preset@sp@#1,#2,#3\@nil{%1599 \ifx\MT@sp@unit@\@empty1600 \MT@warn@preset@towidth{sp}%1601 \MT@ifempty{#1}{\let\@tempa\@empty}{\MT@preset@aux@factor{#1}\@tempa}%1602 \MT@ifempty{#2}{\let\@tempc\@empty}{\MT@preset@aux@factor{#2}\@tempc}%1603 \MT@ifempty{#3}{\let\@tempb\@empty}{\MT@preset@aux@factor{#3}\@tempb}%