src/addons/luatexja-adjust.sty

   1 %
   2 % luatexja-adjust.sty
   3 %
   4
   5 %% Avoid multiple loading.
   6 \csname\if11luatexjaadjustLoaded\fi\endcsname
   7 \edef\x{%
   8 \catcode32=\the\catcode32%
   9 \catcode33=\the\catcode33%
  10 \catcode35=\the\catcode35%
  11 \catcode40=\the\catcode40%
  12 \catcode41=\the\catcode41%
  13 \catcode42=\the\catcode42%
  14 \catcode43=\the\catcode43%
  15 \catcode44=\the\catcode44%
  16 \catcode45=\the\catcode45%
  17 \catcode46=\the\catcode46%
  18 \catcode58=\the\catcode58%
  19 \catcode59=\the\catcode59%
  20 \catcode60=\the\catcode60%
  21 \catcode61=\the\catcode61%
  22 \catcode62=\the\catcode62%
  23 \catcode64=\the\catcode64%
  24 \catcode91=\the\catcode91%
  25 \catcode93=\the\catcode93%
  26 \catcode94=\the\catcode94%
  27 \catcode95=\the\catcode95%
  28 \catcode126=\the\catcode126%
  29 \endlinechar=\the\endlinechar
  30 \relax}
  31 \catcode32=10 %< >
  32 \catcode33=12 %<">
  33 \catcode35=6  %<#>
  34 \catcode40=12 %<(>
  35 \catcode41=12 %<)>
  36 \catcode42=12 %<*>
  37 \catcode43=12 %<+>
  38 \catcode44=12 %<,>
  39 \catcode45=12 %<->
  40 \catcode46=12 %<.>
  41 \catcode58=12 %<:>
  42 \catcode59=12 %<;>
  43 \catcode60=12 %<<>
  44 \catcode61=12 %<=>
  45 \catcode62=12 %<>>
  46 \catcode64=11 %<@>
  47 \catcode91=12 %<[>
  48 \catcode93=12 %<]>
  49 \catcode94=7  %<^>
  50 \catcode95=8  %<_>
  51 \catcode126=13 %<~>
  52 \endlinechar=-1 %
  53
  54 \edef\ltj@adjust@AtEnd{\x
  55   \noexpand\let\noexpand\ltj@adjust@AtEnd\relax}
  56 \def\luatexjaadjustLoaded{\endinput}
  57
  58 %% Check if LaTeX is used.
  59 \begingroup\expandafter\expandafter\expandafter\endgroup
  60 \expandafter\ifx\csname RequirePackage\endcsname\relax %<*!LaTeX>
  61   \expandafter\let\csname ifltj@in@latex\expandafter\endcsname
  62     \csname iffalse\endcsname
  63 \else                           %<*LaTeX>
  64   \expandafter\let\csname ifltj@in@latex\expandafter\endcsname
  65     \csname iftrue\endcsname
  66   \NeedsTeXFormat{LaTeX2e}
  67   \ProvidesPackage{luatexja-adjust}[2016/05/15]
  68 \fi                             %</LaTeX>
  69
  70 % Load core module if not yet.
  71 % xkeyval.sty is already required in luatexja.sty.
  72 \ifx\luatexjacoreLoaded\@undefined
  73   \ifltj@in@latex                 %<*LaTeX>
  74     \RequirePackage{luatexja}[2016/05/15]
  75   \else                           %<*!LaTeX>
  76     \input luatexja.sty %
  77   \fi                             %</LaTeX>
  78 \fi
  79
  80 %% When environment check fails, exit now.
  81 \ifx\LuaTeXjaAvailable\@undefined
  82   \ltj@otf@AtEnd
  83 \expandafter\endinput\fi\relax
  84
  85 %%------------------
  86
  87 %! Main part of luatexja-adjust
  88 \ifnum\luatexversion>90
  89   \RequireLuaTeXjaSubmodule{adjust}
  90 \else
  91   \RequireLuaTeXjaSubmodule{adjust_85}
  92 \fi
  93
  94 % enable/disable ``advanced'' line adjustment
  95 % 1: lineend  (aw_step1)
  96 % 2: priority (aw_step2)
  97 % 3: all
  98
  99 \newcount\ltjadj@status
 100 \define@key[ltj]{adjust}{all}[]{\ltjadj@status=3 }
 101 \define@boolkey[ltj]{adjust}{lineend}[true]{%
 102   \ifltj@adjust@lineend
 103     \ifodd\ltjadj@status\else\advance\ltjadj@status\@ne\fi
 104   \else
 105     \ifodd\ltjadj@status\advance\ltjadj@status\m@ne\fi
 106   \fi\relax}
 107 \define@boolkey[ltj]{adjust}{priority}[true]{%
 108   \ifltj@adjust@priority
 109     \ifnum\ltjadj@status>1\else\advance\ltjadj@status2\fi
 110   \else
 111     \ifnum\ltjadj@status>1\advance\ltjadj@status-2\fi
 112   \fi\relax}
 113 \protected\def\@@ltjenableadjust[#1]{%
 114    \setkeys[ltj]{adjust}{#1}%
 115    \directlua{luatexja.adjust.enable_cb(\the\ltjadj@status)}\ignorespaces
 116 }
 117 \protected\def\ltjdisableadjust{\ltjenableadjust*[]}
 118 \protected\def\ltjenableadjust{%
 119    \ltx@ifnextchar*{\ltjadj@status\z@\ltx@firstoftwo{\@ltjenableadjust}}{\@ltjenableadjust}}
 120 \protected\def\@ltjenableadjust{%
 121    \ltx@ifnextchar[{\@@ltjenableadjust}{\@@ltjenableadjust[all]}}%]
 122
 123 \ltjenableadjust
 124 % there is also a key for \ltjsetparameter, for same effect
 125 \define@boolkey[ltj]{japaram}{adjust}[true]{%
 126   \ifltj@japaram@adjust\ltjenableadjust\else\ltjdisableadjust\fi\relax
 127 }
 128
 129
 130 %%------------------ all done
 131 \ltj@adjust@AtEnd
 132 \endinput
 133 %% EOF