diff options
Diffstat (limited to 'tex/context/base/mkiv/supp-dir.mkiv')
| -rw-r--r-- | tex/context/base/mkiv/supp-dir.mkiv | 56 |
1 files changed, 30 insertions, 26 deletions
diff --git a/tex/context/base/mkiv/supp-dir.mkiv b/tex/context/base/mkiv/supp-dir.mkiv index 42a0aa37c..277f2b7ca 100644 --- a/tex/context/base/mkiv/supp-dir.mkiv +++ b/tex/context/base/mkiv/supp-dir.mkiv @@ -11,40 +11,44 @@ %C therefore copyrighted by \PRAGMA. See mreadme.pdf for %C details. -%D We no longer have the \ETEX\ direction primitives. - \unprotect -% \expanded{\defineactivecharacter \number"2000E} {\textdir TRT\relax} -% \expanded{\defineactivecharacter \number"2000F} {\textdir TLT\relax} +\chardef\directionlefttoright\zerocount +\chardef\directionrighttoleft\plusone -%D As we have less directions now we can use something +\edef\??bdir{\ifdefined\bodydir bdir\else direction\fi} -% \chardef\@@D@@TLT0 -% \chardef\@@D@@TRT1 -% \chardef\@@D@@RTT0 -% \chardef\@@D@@LRL1 -% -% \def\thetextdir{\csname @@D@@\the\textdir\endcsname} -% -% \ifnum\thetextdir=0 L\else R\fi \textdir TRT \ifnum\thetextdir=0 L\else R\fi +\unexpanded\edef\naturalhbox {\hbox \??bdir\directionlefttoright} +\unexpanded\edef\naturalvbox {\vbox \??bdir\directionlefttoright} +\unexpanded\edef\naturalvtop {\vtop \??bdir\directionlefttoright} +\unexpanded\edef\naturalhpack {\hpack \??bdir\directionlefttoright} +\unexpanded\edef\naturalvpack {\vpack \??bdir\directionlefttoright} +\unexpanded\edef\naturaltpack {\tpack \??bdir\directionlefttoright} -\unexpanded\def\showdirsinmargin - {\inleft{\normalexpanded{\noexpand\hbox dir TLT{\ttxx[\the\pardir,\the\textdir]}}}} +\unexpanded\edef\reversehbox {\hbox \??bdir\directionrighttoleft} +\unexpanded\edef\reversevbox {\vbox \??bdir\directionrighttoleft} +\unexpanded\edef\reversevtop {\vtop \??bdir\directionrighttoleft} +\unexpanded\edef\reversehpack {\hpack \??bdir\directionrighttoleft} +\unexpanded\edef\reversevpack {\vpack \??bdir\directionrighttoleft} +\unexpanded\edef\reversetpack {\tpack \??bdir\directionrighttoleft} -\bgroup - \catcode`L=\othercatcode \gdef\istltdir#1#2#3{\if#2L0\else1\fi} - \catcode`R=\othercatcode \gdef\istrtdir#1#2#3{\if#2R0\else1\fi} -\egroup +\ifdefined\bodydir + \let\bodydir \undefined \let\normalbodydir \undefined + \let\bodydirection\undefined \let\normalbodydirection\undefined +\fi -\def\istlttextdir{\expandafter\istltdir\the\textdir} -\def\istrttextdir{\expandafter\istrtdir\the\textdir} +\ifdefined\pagedir + \let\pagedir \undefined \let\normalpagedir \undefined + \let\pagedirection\undefined \let\normalpagedirection\undefined +\fi -\def\istltpardir {\expandafter\istltdir\the\pardir } -\def\istrtpardir {\expandafter\istrtdir\the\pardir } +% \expanded{\defineactivecharacter \number"2000E} {\textdirection\directionrighttoleft\relax} +% \expanded{\defineactivecharacter \number"2000F} {\textdirection\directionlefttoright\relax} -% \ifcase\istlttextdir Y\else N\fi -% \ifcase\istltpardir Y\else N\fi -% \ifcase\istltdir TRT\relax Y\else N\fi +\def\syst_direction_string#1{\ifcase#1=\plusone r2l\else l2r\fi} + +\unexpanded\def\showdirsinmargin + {\normalexpanded{\inleft{\naturalhbox + {\ttxx[\syst_direction_string\pardirection,\syst_direction_string\textdirection]}}}} \protect \endinput |