Index: trunk/lit/AlProTex.sty
===================================================================
--- trunk/lit/AlProTex.sty	(revision 0)
+++ trunk/lit/AlProTex.sty	(working copy)
@@ -0,0 +1,1600 @@
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%  AlProTex.sty                       2008-06-09-16:59  %
+%  Copyright (C) 1992--2008  by Eitan M. Gurari         %
+%                                                       %
+% This program can redistributed and/or modified under  %
+% the terms of the LaTeX Project Public License         %
+% Distributed from CTAN archives in directory           %
+% macros/latex/base/lppl.txt; either version 1 of the   %
+% License, or (at your option) any later version.       %
+%                                                       %
+% However, you are allowed to modify this program       %
+% without changing its name, if you modify its          %
+% signature. Changes to the signature can be introduced %
+% with a directive of the form                          %
+%            \message{signature}                        %
+%                                                       %
+%                            gurari@cse.ohio-state.edu  %
+%                http://www.cse.ohio-state.edu/~gurari  %
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\immediate\write-1{version 2008-06-09-16:59}
+
+\expandafter\edef\csname :RestoreCatcodes\endcsname{%
+   \catcode`\noexpand\noexpand\noexpand \^=\the\catcode`\^%
+   \catcode`\noexpand\noexpand\noexpand \_=\the\catcode`\_%
+}
+\catcode`\^=7  \catcode`\_=8
+\expandafter\edef\csname :RestoreCatcodes\endcsname{%
+   \csname :RestoreCatcodes\endcsname
+   \csname du:cc\endcsname
+   \catcode`\noexpand "=\the\catcode`\"%
+   \catcode`\noexpand |=\the\catcode`\|%
+   \catcode`\noexpand :=\the\catcode`:%
+   \catcode`\noexpand @=\the\catcode`@%
+   \catcode`\noexpand -=\the\catcode`-%
+   \catcode`\noexpand +=\the\catcode`+%
+   \catcode`\noexpand /=\the\catcode`/%
+   \catcode`\noexpand .=\the\catcode`.%
+   \catcode`\noexpand \^^M=\the\catcode`\^^M%
+   \catcode`\noexpand \^^I=\the\catcode`\^^I%
+   \catcode`\noexpand \%=\the\catcode`\%%
+   \let\expandafter\noexpand
+      \csname:RestoreCatcodes\endcsname=\noexpand\undefined}
+\catcode`\@=11  \catcode`\:=11  \catcode`\"=12  \catcode`\|=12
+\def\TagLine[#1]{}     \def\ResetLineCount{}
+\def\RefLine[#1]{}     \def\ShowLineCount{}
+\def\HideLineCount{}   \def\PauseLineCount{}
+\def\ContLineCount{} \def\:InitAlProTex#1,#2//{
+   \def\:InitAlProTex{#1}%
+   \let\:ModifyOutputCodeO=\ModifyOutputCode
+   \def\ModifyOutputCode{\def\Extension{#1}\:ModifyOutputCodeO}
+   \ifx \html:addr\:UnDeF    \def\AlProTex{#2}\else
+      \ifx \html:addr\empty  \def\AlProTex{#2}\else
+                        \def\AlProTex{html,#2}\fi \fi}
+
+\expandafter\:InitAlProTex\AlProTex,//
+
+
+\def\:temp{\csname newif\endcsname}
+\expandafter\ifx \csname :Optionfalse\endcsname\relax
+    \expandafter\:temp \csname if:Option\endcsname
+\fi
+\def\:CheckOption#1{ \def\:temp{#1}
+   \:Optionfalse
+   \expandafter\:GetOptions\AlProTex,,// }
+
+\def\:GetOptions#1,#2//{  \def\:next{#1}
+   \ifx        \:next\empty
+   \else \ifx  \:temp\:next   \:Optiontrue   \let\:next=\relax
+   \else \def\:next{\:GetOptions#2//}
+   \fi  \fi  \:next }
+\def\:CntrlChar{`\\}
+\catcode`\|=0  |catcode`|\=12
+|def|:notex{\}
+|catcode`|\=0 |catcode`||=12
+\def\:temp{ \catcode`\@=12
+   \def\:temp##1{\catcode`\@=11
+                 \:CheckOption{##1}} \:temp}
+\:temp{@}
+\if:Option  \def\:CntrlChar{`\@}
+\catcode`\@=12
+\def\:notex{@}
+\catcode`\@=11
+\let\:ModifyAppendCodeII=\ModifyAppendCode
+\let\:ModifyShowCodeII=\ModifyShowCode
+\let\:ModifyOutputCodeII=\ModifyOutputCode
+\def\ModifyAppendCode{\catcode`\@=0   \catcode`\\=12
+   \:ModifyAppendCodeII}
+\def\ModifyOutputCode{\def\@{@}\:ModifyOutputCodeII}
+\def\ModifyShowCode#1{\:ModifyShowCodeII{#1}\def\@{\char64 }}
+\else  \ifx \:ModifyAppendCodeII\:undefined
+   \:CheckOption{|}   \if:Option
+   \def\:CntrlChar{`\|}
+\def\:notex{|}
+\let\:ModifyAppendCodeII=\ModifyAppendCode
+\let\:ModifyShowCodeII=\ModifyShowCode
+\let\:ModifyOutputCodeII=\ModifyOutputCode
+\def\ModifyAppendCode{\catcode`\|=0   \catcode`\\=12
+   \:ModifyAppendCodeII}
+\def\ModifyOutputCode{\def\|{|}\:ModifyOutputCodeII}
+\def\ModifyShowCode#1{\:ModifyShowCodeII{#1}\def\|{\char124 }}
+\else   \ifx \:ModifyAppendCodeII\:undefined
+   \:CheckOption{`}   \if:Option
+   \def\:CntrlChar{`\`}
+\def\:notex{`}
+\let\:ModifyAppendCodeII=\ModifyAppendCode
+\let\:ModifyShowCodeII=\ModifyShowCode
+\let\:ModifyOutputCodeII=\ModifyOutputCode
+\def\ModifyAppendCode{\catcode`\`=0   \catcode`\\=12
+   \:ModifyAppendCodeII}
+\def\ModifyOutputCode{\def\`{`}\:ModifyOutputCodeII}
+\def\ModifyShowCode#1{\:ModifyShowCodeII{#1}\def\`{\char96 }}
+\else   \ifx \:ModifyAppendCodeII\:undefined
+   \:CheckOption{?}   \if:Option
+   \def\:CntrlChar{`\?}
+\def\:notex{?}
+\let\:ModifyAppendCodeII=\ModifyAppendCode
+\let\:ModifyShowCodeII=\ModifyShowCode
+\let\:ModifyOutputCodeII=\ModifyOutputCode
+\def\ModifyAppendCode{\catcode`\?=0   \catcode`\\=12
+   \:ModifyAppendCodeII}
+\def\ModifyOutputCode{\def\?{?}\:ModifyOutputCodeII}
+\def\ModifyShowCode#1{\:ModifyShowCodeII{#1}\def\?{\char63 }}
+\fi \fi \fi \fi \fi \fi \fi\:CheckOption{xref}     \if:Option
+   \csname newread\endcsname\sdx:file
+\immediate\openin\sdx:file=\jobname.sdx
+\csname newwrite\endcsname\cdx:file
+\immediate\openout\cdx:file=\jobname.cpg
+\let\xref:OutputCode=\OutputCode
+\def\OutputCode#1{%
+   {\Comment{ startcodefragment}{//}%
+    \let\ProTexMssg=\:gobble
+    \let\xref:ModifyOutputCode=\ModifyOutputCode
+    \def\wrt:index##115{\immediate\write\cdx:file }%
+    \def\ModifyOutputCode##1{\xref:ModifyOutputCode{##1}\bgroup
+       \def\relax####115####215{\egroup
+          \expandafter\wrt:index\:WriteCode
+    }}%
+    \xref:OutputCode#1}%
+   \xref:OutputCode#1}
+
+   \expandafter\ifx \csname tmp:cnt\endcsname\relax
+   \csname newcount\endcsname\tmp:cnt
+\fi
+\def\change:cats#1#2#3{%
+   \tmp:cnt#1
+   \def\no::catcodes{%
+      \catcode\tmp:cnt#3
+      \ifnum\tmp:cnt<#2
+          \advance\tmp:cnt  1  \expandafter\no::catcodes
+      \fi }%
+   \no::catcodes }
+
+\def\scan:token{\futurelet\:next\check:ch}
+\def\check:ch{\ifx \:next\par \expandafter\end
+              \else           \expandafter\scan:ch\fi}
+\def\scan:ch#1{\relax
+   \ifx #1\egroup \index:tok \expandafter\egroup\else
+   \ifcat #1a%
+      \ifx \index:tok\empty
+         \change:cats{48}{57}{11}% 0--9
+      \fi
+      \edef\index:tok{\index:tok#1}%
+      \ifx \index:tok\start:comment
+        \let\index:tok=\empty \let~=\scan:comment
+        \change:cats{48}{57}{12}% 0--9
+      \fi
+    \else
+       \change:cats{48}{57}{12}% 0--9
+       \if \index:tok\empty \else
+         \write:index{1
+               \sp:id\index:id \space1 \l:idel\index:tok\r:idel }%
+         \write:index{2
+               \l:idel\index:tok\r:idel \space \sp:id\index:id }%
+       \fi
+       \let\index:tok=\empty
+    \fi   \expandafter~\fi}
+\def\sp:id#1{%
+   \ifnum #1<10000 \space\fi
+   \ifnum #1<1000 \space\fi
+   \ifnum #1<100  \space\fi
+   \ifnum #1<10   \space\fi
+   #1}
+
+\catcode`\@=0 \catcode`\\=12 @relax
+             @:CheckOption{html}   @if:Option
+@def@scan:comment#1\<#2\>{%
+  @def@index:tok{#2}%
+  @afterassignment@exit:comment@tmp:cnt=}
+             @else
+@def@scan:comment#1\<#2\>.{%
+  @def@index:tok{#2}%
+  @afterassignment@exit:comment@tmp:cnt=}
+             @fi
+@catcode`@\=0 \catcode`\@=11
+
+\def\start:comment{startcodefragment}
+\def\exit:comment#1//{\def\:temp{#1}%
+   \ifx \:temp\open:comment
+      \index:push
+      \edef\index:level{I\index:level}%
+       \ifx \prev:comment\index:tok \else
+          \code:index{}%
+      \fi
+      \expandafter\edef\csname L \index:level\endcsname{%
+         \expandafter\ifx \csname L \index:level\endcsname\relax \else
+                  \csname L \index:level\endcsname,
+           \fi  \the\tmp:cnt
+      }%
+      \let\prev:dir=u%
+      \let\prev:comment=\index:tok%
+   \else
+         \code:index{I}%
+      \edef\index:level{\expandafter\:gobble\index:level}%
+      \let\prev:dir=d%
+      \index:pop\index:pop\index:push
+   \fi
+   \let\index:tok=\empty \edef\index:id{\the\tmp:cnt}%
+   \let~=\scan:token ~}
+\def\open:comment{...}
+\def\index:id{0}
+\def\index:level{}
+\let\prev:dir=f
+\def\:gobble#1{}
+
+
+
+\def\index:push{\edef\pd:mem{\the\tmp:cnt,\pd:mem}}
+\def\index:pop{\expandafter\do:pop\pd:mem//}
+\def\do:pop#1,#2//{%
+   \if !#1!\tmp:cnt=-1 \else  \tmp:cnt=#1\def\pd:mem{#2}\fi}
+\def\pd:mem{,}
+
+
+\def\code:index#1{%
+  \if d\prev:dir
+    \bgroup
+       \edef\index:tok{\l:idel\prev:comment\r:idel\space /\the\tmp:cnt/%
+          \expandafter\ifx \csname L #1\index:level\endcsname\relax \else
+                  , \csname L #1\index:level\endcsname
+            \fi}%
+       \write:index{3 \index:tok }%
+       \expandafter\ifx \csname L #1\index:level\endcsname\relax \else
+         \edef\:tmp{\noexpand\derive:index \space
+                    \csname L #1\index:level\endcsname,,}\:tmp
+       \fi
+     \egroup
+     \expandafter\let\csname L #1\index:level\endcsname=\:UnDe
+  \fi
+}
+
+\def\derive:index#1,{%
+   \if !#1!\else
+   \write:index{1\sp:id{#1} 2
+                \index:tok}\expandafter\derive:index\fi}
+
+\def\write:index{\immediate\write\cdx:file }
+\def\l:idel{<}
+\def\r:idel{>}
+
+\def\CodeIndex{%
+   \immediate\closeout\cdx:file   \def\read:sdx{%
+   \ifeof\sdx:file \else
+      \immediate\read\sdx:file to\sdx:in  \sdx:in
+      \expandafter\read:sdx
+   \fi
+}\noindent\vrule\vbox{\tt
+\hsize=0.8\hsize
+\rightskip=3em plus 4em
+\leftskip=3em
+\parindent=0pt
+
+\ifnum \index:typ<4
+  \sdx:in   \fi
+ \read:sdx
+}%
+\immediate\closein\sdx:file
+ %
+   \immediate\openout\cdx:file=\jobname.cdx
+   \bgroup
+    \change:cats{0}{255}{12}%
+    \change:cats{97}{122}{11}% a--z
+    \change:cats{65}{90}{11}%  A--Z
+    \change:cats{95}{95}{11}%  _
+    \let\index:tok=\empty  \let~=\scan:token
+    \expandafter~\input \jobname.cpg \egroup
+    \immediate\write16{-- Have \jobname.cdx processed
+          into \jobname.sdx --}%
+}%
+
+   \let\xref:ModifyShowCode=\ModifyShowCode
+\def\ModifyShowCode#1{%
+   \xref:ModifyShowCode{#1}%
+   \let\xref:ModifyShowLastCode=\ModifyShowLastCode
+   \def\ModifyShowLastCode{\xref:ModifyShowLastCode{#1}%
+     \def\:BackTitle{\noindent\vrule\vtop{%
+\tt
+\hsize=0.8\hsize
+\rightskip=3em plus 4em
+\leftskip=3em
+\parindent=0pt
+        --\the\:CodeNumber--: \small:index
+}}}}
+\def\small:index{%
+   \ifnum \:CodeNumber<\index:num \else
+       \sdx:in
+      \ifeof\sdx:file
+          \def\index:num{1000000}\gdef\index:typ{4}%
+      \else
+          \immediate\read\sdx:file to\sdx:in
+          \expandafter\get:typ \sdx:in //%
+      \fi
+      \expandafter\small:index
+   \fi}
+\def\get:typ#1 {%
+   \gdef\index:typ{#1}%
+   \ifnum #1>1 \def\index:num{1000000}\expandafter\id:gobble
+   \else   \expandafter\get:nm\fi}
+\def\id:gobble#1//{}
+\def\get:nm#1 #2//{\def\index:num{#1}}
+\def\index:num{0}
+\let\sdx:in=\empty
+
+\fi
+\:CheckOption{basic}     \if:Option
+    \def\AlProTex{[[]],<<<>>>,list,title,ClearCode}
+    \def\:temp{\catcode`\`=12}
+\catcode`\;=0    \catcode`\\=12
+;expandafter;catcode ;:CntrlChar=13
+;ifnum 92=;:CntrlChar
+   ;edef;:notex{;noexpand;::notex;noexpand\;:notex}
+;fi
+;ifnum 124=;:CntrlChar
+   ;edef;:notex{;noexpand;::notex;noexpand|;:notex}
+;fi
+;ifnum 64=;:CntrlChar
+   ;edef;:notex{;noexpand;::notex;noexpand@;:notex}
+;fi
+;ifnum 96=;:CntrlChar
+   ;edef;:notex{;noexpand;::notex;noexpand`;:notex}
+;fi
+;:temp   ;catcode`;\=0    ;catcode`;;=12 
+    \def\::notex#1#2{\let\:notex=\:undefined
+                     \let\::notex=\:undefined
+       %
+       \ifx \documentstyle\:undefined \errmessage{LaTeX is missing}\fi
+       \documentstyle{book} \let\cleardoublepage=\clearpage
+       \textwidth=469.75499pt   \textheight=643.20255pt
+       \topmargin=-0.5in  \oddsidemargin=0pt  \evensidemargin=0pt
+       \begin{document}
+       \hbadness=10000  \vbadness=10000  \hfuzz=99in \vfuzz=\hfuzz
+       \tableofcontents   \begingroup
+       %
+       \def\:amp{#2}
+       \def#1{\begingroup
+          \catcode`\ =12   \catcode`\^^M=12    \catcode`\^^I=12
+          \expandafter\catcode\:CntrlChar=12   \:doAmp  }
+       %
+       \def\:doAmp##1{\endgroup
+          \if      ##1<  \def\:next####1#1>{\<####1\>}%
+\else          \def\:next{##1}%
+\ifx \:next\:amp
+\else\if ##1c  \def\:next{\:sect\chapter}%
+\else\if ##1s  \def\:next{ \vfil\:sect\section}%
+\else\if ##1u  \def\:next{ \vfil\:sect\subsection}%
+\else\if ##1v  \def\:next{\expandafter\def\csname\string
+                             @xverbatim\endcsname########1#2{%
+                              ########1\end{verbatim}\egroup}%
+                          \bgroup\expandafter\catcode\:CntrlChar=12
+                          \begin{verbatim}}%
+\else\if ##1o  \def\:next####1#1<####2#1>{\OutputCode####1\<####2\>}%
+\else\if ##1n  \def\:next{\ClearCode}%
+\else\if ##1e  \def\:next{\endgroup\end{document}}%
+\else    \edef\:next{\noexpand\errmessage{\:amp##1?}}%
+\fi\fi \fi\fi \fi\fi \fi\fi \fi
+\:next   }
+       %
+       \:NoSpecials{12}{0}{255}
+       \catcode`\ =10    \catcode`\^^M=5    \catcode`\^^I=10
+       \escapechar=\:CntrlChar
+       \expandafter\catcode\:CntrlChar=13  }
+   \def\:specialactive{\catcode`\_=13
+   \catcode`\~=13   \catcode`\\=13   \catcode`\#=13
+   \catcode`\$=13   \catcode`\%=13   \catcode`\^=13
+   \catcode`\&=13   \catcode`\{=13   \catcode`\}=13 }
+
+\def\:sect{\begingroup \:specialactive \::sect}
+
+\catcode`\/=0   \catcode`\[=1   \catcode`\]=2
+\catcode`\@=6   \catcode`\*=14  \:specialactive
+
+/def/::sect@1@2/par[/endgroup/begingroup
+   /def~[/bgroup/tt/char126/egroup]*
+   /def\[/bgroup/tt/char92/egroup]*
+   /def#[/bgroup/tt/char35/egroup]*
+   /def$[/bgroup/tt/char36/egroup]*
+   /def%[/bgroup/tt/char37/egroup]*
+   /def^[/bgroup/tt/char94/egroup]*
+   /def_[/bgroup/tt/char95/egroup]*
+   /def&[/bgroup/tt/char38/egroup]*
+   /def{[/bgroup/tt/char123/egroup]*
+   /def}[/bgroup/tt/char125/egroup]*
+   /escapechar=92   @1[@2]/endgroup]
+
+/catcode`/\=0   \catcode`\#=6   \catcode`\$=3   \catcode`\%=14
+\catcode`\^=7   \catcode`\&=4   \catcode`\{=1   \catcode`\}=2
+\catcode`\_=8   \catcode`\/=12  \catcode`\[=12  \catcode`\]=12
+\catcode`\@=11  \catcode`\*=12
+
+\else
+   \let\:CntrlChar=\:undefined
+   \def\:notex{\let\:notex=\:undefined}
+\fi
+\:CheckOption{<<<>>>}     \if:Option
+\def\:OpenCode#1#2{\def\:OpenCode{#1}\def\:CloseCode{#2}}
+\edef\:CloseCode{\noexpand\:OpenCode
+  \ifx \CodeDel\:UnDefined{<<<}{>>>}\else \CodeDel\fi }  \:CloseCode
+\let\:ModifyAppendCodeI=\ModifyAppendCode
+                                   \catcode`\^^M=13
+\edef\ModifyAppendCode{%
+\catcode`\noexpand\{=12  \catcode`\noexpand\}=12 %
+\let\noexpand\::ScanAppend=\noexpand\:ScanAppend %
+  \def\noexpand\:ScanAppend\:OpenCode##1^^M##2\:CloseCode{%
+                           \noexpand\::ScanAppend{##2}}%
+\noexpand\:ModifyAppendCodeI}%
+                                             \catcode`\^^M=5
+\fi \:CheckOption{[]}
+\if:Option \else   \:CheckOption{[[]]}\fi
+\def\:temp{}
+\if:Option
+  \def\:temp{\csname newdimen\endcsname\:BoxDepth}
+\def\WindowTitle#1{{\leavevmode
+   \leftskip=0em  \rightskip=0em
+   \parindent=0em \:BoxDepth=0.4pt
+   \setbox0=\hbox{#1}%
+   \advance\:BoxDepth by \dp0
+   \advance\:BoxDepth by 0.4mm   \raise -\:BoxDepth
+   \hbox{\vrule
+      \vbox{\hrule          \vskip 0.4mm
+            \hbox{\hskip 0.4mm\relax #1\hskip 0.4mm}%
+            \vskip 0.4mm    \hrule}%
+         \vrule}}}
+\let\:ModifyShowCodeIII=\ModifyShowCode
+\def\ModifyShowCode#1{\:ModifyShowCodeIII{#1}%
+   \def\PortTitle##1{\WindowTitle{\WindowTitle{##1}}}%
+   \def\:BackTitle{\hbox{---}}}
+\fi   \:temp \:CheckOption{[[]]}
+\def\:temp{}
+\if:Option
+  \let\:ShowCodeI=\:ShowCode
+\def\:ShowCode#1{\par\:FrameCode{\:ShowCodeI{#1}}}
+\def\:FrameCode#1{\vtop{%
+            \advance\hsize by -\leftskip
+            \noindent\vrule
+            \vtop{\leftskip=0pt    \advance\hsize by -0.8pt
+                  \hrule#1\hrule}\vrule}\vskip3pt minus1pt\relax}
+\let\:ModifyShowCodeV=\ModifyShowCode
+\def\ModifyShowCode#1{\:ModifyShowCodeV{#1}%
+           \let\PortTitle=\:PortTitleI
+           \def\:BottomTitle{}}
+\def\:PortTitleI#1{{\parindent=0pt
+           \leftskip=0pt plus 0.5\hsize
+           \rightskip=\leftskip #1\par  \vskip-1ex
+           \noindent\dotfill\null}}
+\let\:ModifyShowLastCodeI=\ModifyShowLastCode
+\def\ModifyShowLastCode#1{\:ModifyShowLastCodeI{#1}%
+                      \advance\leftskip by -2em   }
+\fi   \:temp \:CheckOption{list}  \if:Option
+\def\:show{%
+   \ifx \:title\empty \def\:show{\ShowCode-}%
+   \else              \def\:show{\ShowCode}%
+   \fi     \:show}
+\fi
+
+\catcode`\-=13 \catcode`\+=13  \if:Option
+\def\AfterCode#1{{%
+   \def-##1##2{\def\:title{##1}}%
+   \let+=\:ignoreII
+   #1\relax
+   \:show #1}}
+\def\:ignoreII#1#2{}
+\fi
+\catcode`\-=12 \catcode`\+=12
+
+ \:CheckOption{enumerate} \def\:temp{}  \if:Option
+   \def\:temp{\csname newcount\endcsname\:LineCount}
+   \let\:ModifyShowLastCode=\ModifyShowLastCode
+   \def\ModifyShowLastCode{\everypar={\:CountLines
+      {\it \:ShowLineCount \quad}}%
+      \let\:BottomTitleX=\:BottomTitle
+      \def\:BottomTitle{\everypar={}\:BottomTitleX}%
+   \:ModifyShowLastCode}
+   \def\ResetLineCount{ \global\:LineCount=0 }
+   \def\ShowLineCount{\def\:ShowLineCount{\ifnum\:LineCount<100 0\fi
+                                          \ifnum\:LineCount<10  0\fi
+                                          \the\:LineCount}}
+   \def\HideLineCount{\def\:ShowLineCount{}}
+   \def\ContLineCount{\def\:CountLines{\global\advance\:LineCount by 1 }}
+   \def\PauseLineCount{\def\:CountLines{}}
+   \ShowLineCount \ContLineCount
+   \def\TagLine[#1]{%
+      \edef\:temp{\noexpand\Tag\noexpand{C #1\noexpand}\noexpand{%
+                  \the\:LineCount\noexpand}}\:temp}
+   \def\RefLine[#1]{\Ref{C #1}}
+   \let\:ModifyOutputCodeZ=\ModifyOutputCode
+   \def\ModifyOutputCode{\def\RefLine[##1]{}%
+      \def\TagLine[##1]{}\:ModifyOutputCodeZ}
+\fi
+\:temp \:CheckOption{ClearCode}
+\if:Option
+   \gdef\:EraseCode{}
+   \def\ModifyCode#1{%
+      \let\clearcode:id=\clearcode::id
+      \def\:temp{\gdef\:EraseCode}%
+      \expandafter\expandafter\expandafter
+      \:temp\expandafter{\:EraseCode~#1}}
+   \def\ClearCode{{%
+      \def~##1{\global\let##1=\:undefined}%
+      \:EraseCode \:CodeNumber=\clearcode::id
+\advance\:CodeNumber by 1
+\xdef\clearcode::id{\the\:CodeNumber }
+}%
+      \gdef\:EraseCode{}}
+   \let\:ModifyShowCodeVI=\ModifyShowCode
+\let\:AfterCodeI=\AfterCode
+\let\:RefLineI=\RefLine
+\let\:TagLineI=\TagLine
+\def\ModifyShowCode#1{\:ModifyShowCodeVI{#1}%
+   \def\RefLine[##1]{{\def\clearcode:id{0}\:RefLineI[##1]}}%
+   \def\TagLine[##1]{{\def\clearcode:id{0}\:TagLineI[##1]}}%
+   \let\clearcode:id=\clearcode::id}
+\def\AfterCode#1{\:AfterCodeI{#1}\def\clearcode:id{0}}
+\ifx\clearcode:id\:UnDef
+   \gdef\clearcode:id{0} \gdef\clearcode::id{0}
+\fi
+
+\fi\:CheckOption{LibCode}
+\if:Option
+\def\LibCode{\bgroup \catcode`\ =9 \catcode`\^^M=9 \catcode`\^^I=9
+   \catcode`\,=13   \:LibCode}
+\def\:LibCode[#1]{\catcode`\,=12   \:LibC[#1]}
+                                      \catcode`\,=13 \catcode`\^^M=13
+\def\:LibC[#1]#2(){\egroup                        %
+   \def,{ \noexpand\input\space}%
+   \edef\:LibFiles{\noexpand\:checkoption , #1 }%
+   \def\:next{\let\:xparms=\:parms                %
+     \begingroup                                    %
+       \let\LibCall=\:LibCall                       %
+       \def\AddLibCall####1{}%
+       \def\AddNestedLibCall####1{}%
+       \def\ifLibEnd{\csname ifx\endcsname\:parms\empty}%
+       \csname :LibFiles\endcsname \Comment{}{}%
+       \FreeCode\<\:TempFileName\>
+       \<\:TempFileName\><<<
+         \<lib code\> >>>      %
+       \edef\:temp{\noexpand\OutputCodE
+          \noexpand\<\:TempFileName\noexpand\>}%
+       \:temp  \input \:TempFileName                %
+     \endgroup                                      %
+     \::LibC }%
+   \def\:parms{#2}%
+   \let\:xparms=\empty   \::LibC %
+   \let\:parms=\:UnDef  \let\:xparms=\:UnDef}%
+\def\LibTempFileName#1{\def\:TempFileName{#1}}
+\LibTempFileName{lib.lib}
+                                     \catcode`\,=12 \catcode`\^^M=9
+\def\::LibC{%
+   \ifx       \:parms\empty      \let\:next=\relax
+   \else\ifx  \:parms\:xparms    \let\:next=\relax
+      \:warn{No code for \string\LibCode\space\:parms}
+   \fi\fi   \:next}
+
+\def\LibShow#1{{\tt\par--- Include library component #1}}
+
+\def\:LibShow#1{%
+  \AddLibCall{#1}%
+  \LibShow{#1}}
+
+\def\:LibCall(#1,#2,#3){%
+  \xdef\:parms{%
+    (#1,#2,#3)%
+    \:parms}%
+  \def\temp{\global\let}%
+  \expandafter\temp\csname#2 \endcsname=\:LibShow
+  \gdef\:LibShow##1{%
+    \AddNestedLibCall{(#1,#2,#3)}%
+    \def\temp{\global\let\:LibShow=}%
+    \expandafter\temp\csname#2 \endcsname
+  }%
+}
+
+\def\:checkoption{%
+  \def\:ShowCode##1{}%
+  \def\ProTexMssg##1{}%
+  %
+  \def\ifoption##1{%
+     \let\:rparms=\:parms
+     \def\parms{}%
+     \def\:lparms{}%
+     \def\:cond{##1}%
+     \def\:type{}%
+     \let\:next=\:ifoption  \:next
+     \xdef\:parms{\:lparms\parms\:rparms}%
+     \csname ifx\endcsname \:type\:cond
+       \xdef\:parms{\:lparms\:rparms}%
+       \edef\:next{\noexpand\:LibShow{\parms}}%
+       \:next
+     }%
+  %
+  \def\:ifoption{%
+     \expandafter\:getoption\:rparms()%
+     \ifx \:type\:cond    \let\:next=\relax   \fi
+   \:next   }%
+  %
+  \def\:getoption##1(){%
+     \def\:temp{##1}%
+     \ifx \:temp\empty \let\:next=\relax
+     \else              \::getoption##1()\fi }%
+  %
+  \def\::getoption(##1,##2,##3)##4(){%
+     \edef\:lparms{\:lparms\parms}%
+     \def\parms{(##1,##2,##3)}%
+     \def\:rparms{##4}%
+     \def\:type{##2}}%
+}
+\fi\def\TextIndex#1{}   \def\SecIndex#1{}
+\def\ShowIndex{\:warn{\string\ShowIndex?}}
+
+\:CheckOption{ShowIndex}
+
+\def\:temp{}
+\catcode`\-=13 \catcode`\+=13
+
+\if:Option
+\def\:temp{\csname newcount\endcsname \:IdxCount}
+\def\:GetTrc{%
+   \immediate\read15 to \:x
+   \ifx \:PAR\:x \let\:GetTrc=\relax
+   \else \expandafter\:AddEntry\:x \fi
+   \:GetTrc}                           \def\:PAR{\par}
+
+\def\:AddEntry#1{\def\:cs{#1}\futurelet\:p\:RemoveField}
+\def\:RemoveField{\ifx .\:p \def\:next##1 {\:AppendEntry}
+                  \else    \let\:next=\:AppendEntry \fi \:next}
+
+\def\:AppendEntry#1#2#3{\def\:y{#1}%
+   \ifx \:y\:NS \AppendCode\:idx{\endgroup
+                   \:Section{#2}{#3}\begingroup}%
+      \expandafter\let\csname :idx\the\:IdxCount\endcsname=\:idx
+      \def\:temp{\Code\:idx{}}%
+      \expandafter\expandafter\expandafter\:temp\expandafter
+                      {\csname :idx\the\:IdxCount\endcsname}%
+      \advance\:IdxCount by 1
+   \else\ifx \:y\:V
+      \expandafter\ifx \csname :\:Title #2;;:\endcsname\relax
+         \expandafter\Code\csname :\:Title #2;;:\endcsname{}{\?{#2}}%
+      \fi
+      \expandafter\AppendCode\csname :\:Title #2;;:\endcsname{ #3}%
+      \:AddIdx{\csname :\:Title #2;;:\endcsname}%
+   \else
+      \edef\:cs{\expandafter\string\:cs.:}
+\edef\:cs{\expandafter\noexpand\csname\:cs\endcsname}
+      \ifx      \:y\:DT \expandafter\Code\:cs{}{\tr{#2}}%
+      \else\ifx \:y\:ST \expandafter\AppendCode\:cs{ \underbar{#3}}%
+                \:AddIdx{\:cs}%
+      \else\ifx \:y\:SC \expandafter\AppendCode\:cs{ #3}%
+                \:AddIdx{\:cs}%
+   \fi\fi\fi\fi\fi}\def\:AddIdx{%
+   \def\:y{\AppendCode\:idx}%
+   \expandafter\expandafter\expandafter\:y\expandafter}
+
+\def\SecIndex#1{{\let\:refout=\:trcfile  \def\:TagCs{.}%
+   \Tag{section}{{#1};;}}}
+
+\def\TextIndex#1{{\let\:refout=\:trcfile  \def\:TagCs{.}%
+   \Tag{user}{#1;;}}}
+
+\let\i:ModifyShowCode=\ModifyShowCode
+\let\i:ModifyOutputCode=\ModifyOutputCode
+\def\ModifyOutputCode{%
+   \ifx \:OpenCode\:UnDef \def\TextIndex##1{}%
+   \else  \let\TextIndex=\Text:Index \fi
+   \i:ModifyOutputCode}
+\def\ModifyShowCode{%
+   \ifx \:OpenCode\:UnDef \else  \let\TextIndex=\::TextIndex \fi
+   \i:ModifyShowCode }
+\let\:TextIndex=\TextIndex
+\catcode`\[=1  \catcode`\{=12  \catcode`\]=2  \catcode`\}=12
+\def\::TextIndex{#1}[\:TextIndex[#1]]
+\def\Text:Index{#1}[]
+\catcode`\[=12 \catcode`\{=1   \catcode`\]=12 \catcode`\}=2
+
+\def\:V{user}
+\def\:DT{DefineTitle}  \def\:ST{ShowTitle}  \def\:SC{ShowCode}
+\def\:NS{section}
+
+\def\:Title#1;;#2;;{#1}
+\def\:TitleA#1;;#2;;{$\triangleleft\triangleleft$ #1
+   $\triangleright\triangleright$}
+
+\def\:Index{\vfil\eject   \Comment{}{}%
+   \immediate\closeout\:trcfile
+   \def\ModifyShowCode##1{}%
+   \def\ModifyAppendCode##1{}%
+   \def\ModifyFrontTitle##1{}%
+   \def\ModifyShowLastCode##1{##1}%
+   \def\AfterCode##1{}%
+   \def\:WriteTrc##1{}%
+   \let\:TraceDef=\:ignoreII
+   \def\:warn##1{}%
+   \def\:gobble##1{}%
+   \let\CodeId=\:ignoreII
+   \def\ModifyOutputCode##1{\def\:FileName{\jobname.xidx}}%
+   \Code\:idx{}{\BeforeIndex\begingroup}%
+   \:PauseIndex  \immediate\openin15=\:jobname
+   \:GetTrc  \AppendCode\:idx{\endgroup}%
+   {\def\?##1{\par\noindent{\tt\:Title ##1;;}\hfill}%
+    \def\tr##1{\par\noindent{\tt\:TitleA ##1;;}\hfill}%
+    \def\:Section##1##2{{\bf\smallskip\noindent{\:Title ##1;;}\hfill
+                         ##2\smallskip}}%
+    \def\ModifyShowLastCode##1{%
+       \leftskip=0pt \rightskip=0pt
+       \def\:LastCode{\:idx}%
+       \:SetShowIndex}%
+     \let\:FrameCode=\empty
+     \expandafter   \ShowCode\:minus\:idx   }}
+
+
+\def\:ignoreII#1#2{}
+
+\def\:SetShowIndex{\def-##1##2{\expandafter\def\csname
+       \expandafter\:gobble##2\endcsname{}}%
+                   \def+##1##2{##1}}
+
+\def\BeforeIndex{}
+\def\:PauseIndex{}
+\def\PauseIndex{\def\PauseIndex{\immediate\read16 to \PressReturn}}
+\def\ShowIndex{{%
+   \let\:SvCode=\Code
+   \def\Code##1{\ModifyCode{##1}\:SvCode##1}%
+   \ifx \::AddEntry\:undefined
+   \else    \let\:AddEntry=\::AddEntry   \fi
+   \:Index   \global\let\:idx=\:undefined }%
+   \xdef\:jobname{\jobname.trc\the\pageno}%
+   \immediate\openout\:trcfile=\:jobname \relax        }
+
+\xdef\:jobname{\jobname.trc}
+    \fi    \catcode`\-=12 \catcode`\+=12   \:temp
+\:CheckOption{title+}  \if:Option
+   \def\:temp{\def\AlProTex}
+   \def\temp:{title,}
+   \expandafter\expandafter\expandafter\expandafter\expandafter
+       \expandafter\expandafter\:temp\expandafter\expandafter
+                      \expandafter{\expandafter \temp:\AlProTex}
+\fi
+\:CheckOption{title}  \if:Option
+       \def\:Name#1{<#1\string\>\endcsname}
+\def\:DoName#1{\expandafter#1\csname\:Name}
+
+\def\getTitle:env{\catcode`\_=11 }%
+\def\<{\bgroup \getTitle:env \cont:title}%
+\def\cont:title#1\>{\egroup\edef\CodeInputLineNo{\the\inputlineno}%
+  \:DoName\ifx{#1}\relax
+      \edef\:temp{\noexpand\Code\:DoName
+         \noexpand{#1}\noexpand{#1\noexpand}}%
+      \:DoName\let{#1}=\:undefined
+   \else  \def\:temp{\:DoName\AppendCode{#1}}\fi\:temp}
+
+                     \catcode`\.=10 \catcode`\ =13
+\let\:ModifyShowCodeIV=\ModifyShowCode%
+\def\ModifyShowCode{%
+..\def\:gobble##1{}%
+..\def\<##1\>{{\def {\space}%
+...\:DoName\ifx{##1}\relax%
+.....\let\AppendCode=\:gobble%
+.....\:DoName\Code{##1}{##1}{}\fi%
+..\csname\:Name{##1}}}\:ModifyShowCodeIV}%
+\def\:OutputCodeI#1\<#2\>{%
+...\let\:SaveSp= \def {}%
+...\def\:temp{#2}%
+...\ifx\:temp\empty.\def\:temp{ProTexOutput}%
+...\else.\let\:temp=\empty.\fi%
+...\expandafter\ifx.\csname.\:temp#2\endcsname\relax%
+...\else.\immediate\write16{---.AlProTex. warning.---.%
+......\string\OutputCode#1%
+......\string\<#2\string\>\space.temporarily\space.%
+......redefines.\:backslash#2}\fi%
+...\edef\:FileName{\:temp#2}%
+...\let =\:SaveSp%
+...\expandafter\def\csname\:FileName\endcsname{\csname\:Name{#2}}%
+...\def\:tempa{\:OutputCodeIV#1}%
+...\expandafter\:tempa\csname\:FileName\endcsname%
+..\endgroup}%
+\catcode`\ =10\catcode`\.=12
+
+\let\:OutputCodeIV=\OutputCode
+\def\OutputCode{%
+   \begingroup
+      \def\<##1\>{\csname\:Name{##1}}%
+      \let\:WriteTrcI=\:WriteTrc     \def\:gobble##1{}%
+      \def\:WriteTrc{\edef\:TagCs{\string\<\expandafter\expandafter
+                              \expandafter\:gobble \:TagCs\string\>}%
+                   \:WriteTrcI}
+      \catcode` =13 \:OutputCodeI}
+
+\def\OutputCodE\<#1.#2\>{{
+   \:DoName\def{#1}{\<#1.#2\>}
+   \OutputCode[#2]\<#1\>}}
+
+\def\FreeCode\<#1\>{{%
+  \def\temp##1{\global\let##1=\:UnDefined}%
+  \:DoName\temp{#1}}}
+
+\def\ShowCode#1{%
+   \def\:test{#1}%
+   \ifx \:test\:minus  \def\:next{\:iname\:ShowCode}\else
+      \def\:next{\:iname\:ShowCode#1}\fi
+   \:next}
+
+\def\:iname#1#2{\def\:next{#2}\def\:temp{\<}%
+   \ifx \:next\:temp
+      \def\:next##1\>{\expandafter#1\csname\:Name{##1}}\else
+   \def\:next{#1#2}\fi   \:next}
+
+\def\::AddEntry#1{%
+   \ifx #1\<    \let\:Next=\:AddEntryA
+   \else        \def\:Next{\def\:cs{#1}\:AddEntryB}\fi
+   \:Next }
+
+\def\:AddEntryA#1\>{%
+   \edef\:cs{\expandafter\noexpand
+             \csname#1:.\endcsname}\:AddEntryB}
+
+\def\:AddEntryB{%
+   \futurelet\:p\:RemoveField}%
+   \def\:RemoveField{\ifx .\:p \def\:next##1 {\:AppendEntry}%
+                  \else    \let\:next=\:AppendEntry \fi \:next}
+
+\let\id:WriteTrc=\:WriteTrc
+\def\:WriteTrc#1{%
+  \def\:temp{#1}\def\:tempa{ShowTitle}\ifx\:temp\:tempa
+     \expandafter\def\expandafter\:TagCs\expandafter
+         {\:TagCs.\the\:CodeNumber}%
+  \fi
+  \id:WriteTrc{#1}}
+
+   \:CheckOption{macro} \if:Option   
+\let\:saveMusp=\>
+
+\def\>{\ifmmode \expandafter\:saveMusp \else \expandafter\:CodeMacro \fi }
+
+\def\:CodeMacro(#1)#2\<{%
+   \begingroup
+     \:getcodeprms(\string\1,\string\2,\string\3,\string\4,%
+                       \string\5,\string\6,\string\7,\string\8,\string\9)%
+     \xdef\:temp{()#2}%
+   \endgroup
+   \def\:next{#1}%
+   \ifx\:next\empty
+      \expandafter\ifx\csname\:temp\space :<\endcsname\relax
+          \ifx\:EraseCode\:UnDef\else
+             \expandafter\:adderase \csname\:temp\space :<\endcsname
+          \fi
+      \else
+         \:warn{Redefine \string\>\:temp\string\<}%
+      \fi
+      \def\:next{\expandafter\:getpseducode
+                    \csname\:temp\space :<\endcsname{#2}}%
+   \else
+      \begingroup
+        \:getcodeprms(#1,,,,,,,,,)%
+        \:protectcommands  \ModifyIndirectCode{(#1)#2}%
+        \xdef\:next{\csname\:temp\space :<\endcsname}%
+      \endgroup
+   \fi
+   \:next}
+
+\def\:adderase#1{%
+  \def\:next{\gdef\:EraseCode}%
+  \expandafter\expandafter\expandafter\:next\expandafter{\:EraseCode~#1}%
+}
+
+\def\:getpseducode#1#2{\begingroup
+  \:defaultcats
+  \ModifyAppendCode{}%
+  \:getpseducodeI#1{#2}}
+
+\def\:getpseducodeI#1#2#3{\endgroup
+  \def#1{\<#2\>{#3}}%
+}%
+
+\def\:getpseducodeII{%
+  \ifx \:OpenCode\:UndDef
+  \else
+    \edef\:getpseducodeI{%
+       \def\noexpand
+          \:getpseducodeI####1####2####3\:OpenCode####4\:CloseCode{%
+                             \endgroup
+          \def\noexpand\:temp{####3}%
+          \noexpand\ifx\noexpand\:temp\noexpand\empty
+            \def####1{\noexpand\<####2\noexpand
+                             \>\:OpenCode####4\:CloseCode}%
+          \noexpand\else
+            \errmessage{\string\>()...\string
+                            \<...?...\:OpenCode...\:CloseCode}
+            \let####1=\noexpand\:UnDef
+          \noexpand\fi
+       }%
+    }%
+    \:getpseducodeI
+  \fi
+  \let\:getpseducodeII=\:UndDef
+}
+                   \catcode`\ =13 \catcode`\^^M=13 \catcode`\^^I=13
+                                 \catcode`\#=14      \catcode`\%=12
+\def\:protectcommands{#
+\let\<=\relax#
+\let\>=\relax#
+\let\%=\csname#
+\expandafter\let\%NL%\endcsname=\relax#
+\let\%=\relax#
+\let\ =\relax#
+\let^^M=\relax#
+\let^^I=\relax#
+\ifx\TagLine\:UnDef\else\let\TagLine=\relax\fi#
+\ifx\RefLine\:UnDef\else\let\RefLine=\relax\fi#
+}
+                                 \catcode`\#=6       \catcode`\%=14
+                    \catcode`\ =10 \catcode`\^^M=9 \catcode`\^^I=10
+
+\def\ModifyIndirectCode#1{}
+\def\:getcodeprms(#1,#2,#3,#4,#5,#6,#7,#8,#9){%
+   \def\1{#1}%
+   \def\2{#2}%
+   \def\3{#3}%
+   \def\4{#4}%
+   \def\5{#5}%
+   \def\6{#6}%
+   \def\7{#7}%
+   \def\8{#8}%
+   \def\9##1,##2){\def\9{##1}}%
+   \9#9,)}  \fi
+   \:CheckOption{title}\if:Option   \def\TitleAlias#1#2{%
+   \expandafter\let\csname C\string#1\endcsname=\<%
+   \expandafter\let\csname O\string#1\endcsname=\OutputCode
+   \def\<##1\>{\def\:temp{##1}\def\:tempa{#2}%
+      \ifx \:temp\:tempa
+        \def\:temp{\csname C\string#1\endcsname#1\>}\else
+        \def\:temp{\csname C\string#1\endcsname##1\>}\fi \:temp}
+   \def\OutputCode##1\<##2\>{\def\:temp{##2}\def\:tempa{#2}%
+      \ifx \:temp\:tempa
+         \def\:temp{\csname O\string#1\endcsname##1\<#1\>}%
+      \else \def\:temp{\csname O\string#1\endcsname##1\<##2\>}\fi
+      \:temp}}
+  \fi
+\fi
+%% BOC
+%% 2016/06/01 dg
+%% Set source line numbers in the output
+%% \srclineBOL{symbol} - to change a beginning-of-line symbol
+%% \CodeInputLine - to change all the string. 
+%% 
+\:CheckOption{CodeLineNo}
+\if:Option
+  %% Set beginnin-of-line symbol to #
+  %% if extension is c (case sensitive) 
+  \if\:InitAlProTex c\relax
+    \srclineBOL{\#}  
+  \fi
+ \SetOutputWithLineNo
+\fi
+%% EOC
+\:CheckOption{eline}
+\catcode`\%=12
+\if:Option
+  \let\:ModifyOutputCodeJ=\ModifyOutputCode
+  \def\ModifyOutputCode{\def\:Ln{ %^^J}\:ModifyOutputCodeJ}
+\fi  \catcode`\%=14
+\:CheckOption{ShowFile}
+\if:Option
+\catcode`\^^I=13\catcode`\ =13\catcode`\^^M=13%
+\def\:ObeyIn{\CodeFont\parindent=0pt%
+   \parskip=0pt\everypar{}%
+   \:NoSpecials{12}{0}{255}\catcode`\ =13%
+   \catcode`\^^M=13\catcode`\^^I=13%
+   \def^^M{\leavevmode\par}\def^^I{  }%
+   \def {\leavevmode\:Sp}}%
+\catcode`\^^M=5\catcode`\ =10\catcode`\^^I=10
+\expandafter\ifx \csname :Sp\endcsname\relax
+  \expandafter\def\csname :Sp\endcsname{ }
+\fi
+\def\ShowFile#1{{\:ObeyIn    \openin15=#1
+  \ifeof15 \:warn{\string\ShowFile{#1}?}\else
+    \input #1 \fi \closein15 }}
+\else  \def\ShowFile#1{\:warn{\string\ShowFile?}}
+\fi\let\Note=\empty   \let\EndNote=\empty
+
+\:CheckOption{NoShow}  \if:Option
+   \let\:svShowCode=\:ShowCode
+   \def\ShowOn{\let\Note=\empty
+               \let\:ShowCode=\:svShowCode}
+   \def\ShowOff{\let\Note=\:NoShow
+                \def\:ShowCode##1{}}
+   \def\:NoShow{\begingroup
+      \:NoSpecials{11}{0}{255}\:EndNoShow}
+   \catcode`\/=0   \catcode`\\=11
+   /def/:EndNoShow#1\EndNote{/endgroup}
+   /catcode`/\=0   /catcode`//=12
+\fi\:CheckOption{ShowTop}
+\catcode`\-=13  \catcode`\+=13
+\if:Option
+\def\:ShowTop#1{{\par
+   \def\ModifyFrontTitle##1{\def\:AppendSign{}}%
+   \def\ModifyShowLastCode##1{\let\:save=-%
+      \def\:LastCode{#1}%
+      \def-####1####2{\let-=\:save}%
+      \def+####1####2{{\ShowSep\let+=\:ignoreII ####1}}}%
+   \ShowCode#1}}
+
+\def\ShowSep{}
+\def\ShowTop{\:iname\:ShowTop}
+\def\:ignoreII#1#2{}
+\def\:iname#1#2{\def\:next{#2}\def\:temp{\<}%
+   \ifx \:next\:temp
+      \def\:next##1\>{\expandafter#1\csname\:Name{##1}}\else
+   \def\:next{#1#2}\fi   \:next}
+\fi
+\catcode`\-=12  \catcode`\+=12
+\def\LinkPort{\:HRefCode{)\clearcode:id P:}}
+\def\LinkWindow{\:HRefCode{)\clearcode:id Z:}}
+\def\:HRefCode#1\<#2\>{}
+\:CheckOption{info}  \if:Option
+   \let\inf:ModifyOutputCode=\ModifyOutputCode
+   \def\ModifyOutputCode#1{%
+     \inf:ModifyOutputCode{#1}%
+     \expandafter\ifx \csname \Extension :cdinfo\endcsname \relax \else
+         \edef\:FileName{\:FileName}%
+         \expandafter\expandafter\csname \Extension :cdinfo\endcsname
+                                           \:FileName!*?: %
+     \fi   }
+   \def\CodeInfo{\futurelet\:temp\cd:inf}
+   \edef\cd:inf{\noexpand\ifx [\noexpand\:temp
+                   \let\noexpand\:temp=\noexpand\cdi:nf
+      \noexpand\else \def\noexpand\:temp{\noexpand\cdi:nf
+                                   [\:InitAlProTex]}\noexpand\fi
+      \noexpand\:temp}
+   \def\cdi:nf[#1]{\expandafter\def\csname
+                             #1:cdinfo\endcsname##1.##2!*?: }
+\fi
+
+\ifx \HCode\:UnDef \ifx \Htmltrue\:UnDef
+   \def\:temp{\csname newif\endcsname}
+   \expandafter\:temp \csname ifHtml\endcsname  \Htmlfalse
+\fi
+
+\def\EndLink{\ifx \empty:lnk\empty \HCode{\Hbrakets</\tag:A>}\fi}
+\def\:HRef{\ifx [\:temp \expandafter\::HRef
+           \else \expandafter\:::HRef \fi }
+\def\HT:tag{\ifx -\let:val   \expandafter\H:Tag
+            \else            \expandafter\HTa:g\fi }
+\def\HTa:g{\H:Tag-}
+\def\Link{\let\:attr\empty \futurelet\let:val\HRefT:ag}
+\def\HRefT:ag{\ifx -\let:val \expandafter\H:RefTag
+              \else          \expandafter\HRefTa:g\fi   }
+\def\HRefTa:g{\H:RefTag-}
+\def\H:RefTag#1{\futurelet\:temp\:HRefTag}
+\def\:HRefTag{\ifx [\:temp \expandafter\::HRefTag
+              \else \expandafter\:::HRefTag \fi }
+
+\def\HCode#1{}
+\def\H:Tag#1#2{}
+\def\::HRef[#1]#2{}
+\def\:::HRef#1{}
+\def\::HRefTag[#1]#2#3{}
+\def\:::HRefTag#1#2{}
+\def\:TagHTag#1{}
+
+
+ \fi
+\:CheckOption{html}
+   \if:Option  \else \:CheckOption{xhtml}\fi
+\if:Option
+   \def\WindowTitle#1{\leavevmode\hbox{%
+   \disable:
+   \expandafter\ifx\csname \clearcode:id W-#1\endcsname\relax
+   \let \:temp=\empty
+\else
+   \edef\:temp{ \HREF:"\expandafter\get:href
+                     \csname \clearcode:id W-#1\endcsname -"}%
+\fi
+\html:addr
+\HCode{<\tag:A\:newlnch \NAME:"\expandafter\get:htag\last:haddr -"\:temp
+          >}\ttl:del{<.}\HCode{</\tag:A>}%
+\expandafter\expandafter\expandafter\global\expandafter\let
+                    \csname \clearcode:id W-#1\endcsname=\last:haddr
+%
+   \expandafter\ifx\csname \clearcode:id :cw:#1\endcsname\relax
+   \expandafter\expandafter\expandafter\global
+       \expandafter\def\csname \clearcode:id :cw:#1\endcsname{0}%
+   \Tag{)\clearcode:id Z:#1}{\last:haddr}%
+\fi
+\frag:href{)\clearcode:id P:#1}{}#1\HCode{</\tag:A>}%
+%
+   \:nextlink{\clearcode:id :cw:#1}{.>}%
+%
+   }}
+\def\disable:{\let\rm=\empty \let\tt=\empty
+   \let\sl=\empty \let\bf=\empty  \let\it=\empty }
+\def\frag:href#1#2{%
+   \HCode{<\tag:A\:newlnch \HREF:"%
+     \expandafter\ifx \csname  cw:#1\endcsname \relax
+        \expandafter\get:href\last:haddr -%
+  \else
+     \expandafter\expandafter\expandafter\get:href\csname
+          cw:#1\endcsname -%
+  \fi
+"#2>}}
+\def\html:PortTitle#1{\hbox{%
+  \disable:
+  \bgroup  \def\:Sp{\space}%
+  \html:addr
+  \ifx\:AppendSign\empty
+     \HCode{<\tag:A\:newlnch \NAME:"\get:htag\last:haddr-">}%
+     \expandafter\expandafter\expandafter\global\expandafter\edef
+            \csname \clearcode:id 9:#1\endcsname{0}%
+  \else
+     \HCode{<\tag:A\:newlnch \HREF:"\expandafter\get:href
+             \csname \space\clearcode:id P:#1\endcsname-"
+             \NAME:"\get:htag\last:haddr-">}%
+  \fi
+  \ttl:del{<..}\HCode{</\tag:A>}%
+  \expandafter\expandafter\expandafter\global\expandafter\let
+                    \csname \space\clearcode:id P:#1\endcsname=\last:haddr
+\egroup
+%
+  \bgroup  \def\:Sp{\space}%
+   \ifx\:AppendSign\empty
+      \Tag{)\clearcode:id P:#1}{\last:haddr}%
+   \fi
+   \frag:href{)\clearcode:id Z:#1}{\ifx \:LastCodeLabel\empty \else
+   \expandafter\html:codeid\:LastCodeLabel</\tag:A>\fi
+%
+}%
+\egroup
+#1\HCode{</\tag:A>}%
+%
+  \:nextlink{\clearcode:id 9:#1}{..}%
+%
+  }}
+\def\:HRefCode#1\<#2\>{{%
+  \let\clearcode:id=\clearcode::id
+  \expandafter\ifx\csname
+                 cw:#1#2\endcsname\relax
+     \HCode{<\tag:A>}\else
+     \HCode{<\tag:A\:newlnch \HREF:"}\expandafter\get:href
+            \csname  cw:#1#2\endcsname
+     -\HCode{">}%
+  \fi}}
+\def\:nextlink#1#2{%
+   \bgroup  \def\:Sp{\space}%
+      \def\:lbl{)\the\tmp:cnt :#1}%
+      \tmp:cnt=\csname #1\endcsname\space
+      \html:addr
+      \Tag{\:lbl}{\last:haddr}%
+      \advance\tmp:cnt by 1\space
+      \expandafter\xdef\csname #1\endcsname{\the\tmp:cnt}%
+      \expandafter\ifx\csname  cw:\:lbl\endcsname\relax
+         \HCode{<\tag:A\:newlnch
+                   \NAME:"\expandafter\get:htag\last:haddr-">}%
+      \else
+         \HCode{<\tag:A\:newlnch
+                     \NAME:"\expandafter\get:htag\last:haddr-"\space
+                     \HREF:"\expandafter\expandafter\expandafter
+                                \get:href\:LikeRef{\:lbl}-">}%
+      \fi
+      \ttl:del{#2>}\HCode{</\tag:A>}%
+   \egroup
+}
+\def\:LikeRef#1{\csname  cw:#1\endcsname}
+\let\html:ShowCode=\ShowCode
+\def\ShowCode{\par \html:ShowCode}
+\let\html:ModifyShowCode=\ModifyShowCode
+\def\ModifyShowCode#1{%
+   \def\%##1\%{\c:protex##1\d:protex}%
+   \html:ModifyShowCode{#1}%
+   \let\PortTitle=\html:PortTitle
+   \let\:FrontTitle=\frnt:ttl
+   \def\:BackTitle{\b:protex\par}%
+   \let\:CodeSkip=\empty
+   \def\:TopTitle##1{{\:FrontTitle{##1}}}%
+   \def\:BottomTitle{\:BackTitle}%
+   \let\html:ModifyShowLastCode=\ModifyShowLastCode
+\ifx\:ModifyShowLastCode\:UnDeF   \def\:CntLines##1{}\else
+                                  \def\:CntLines{\:CountLines}\fi
+\def\ModifyShowLastCode##1{%
+   \ifx \:test\:minus
+      \def\:CodeSkip{{\par\parindent=0pt\leftskip=0pt
+                      \everypar{}\b:protex\par}%
+                      \global\:removeindenttrue}%
+      \leavevmode\a:protex\par
+   \else   \global\:removeindenttrue   \fi
+   \html:ModifyShowLastCode{##1}%
+   \everypar{\e:protex \:CntLines {\it \:ShowLineCount \quad}}%
+}%
+\f:protex
+%
+   }
+\def\frnt:ttl#1{{\htmlprotex:par
+      {\expandafter\ifx \csname ListCounter\endcsname\relax
+         \else  \:removeindentfalse \fi       \leavevmode}%
+      \PortTitle{#1}\:AppendSign}\a:protex
+    }%
+\def\a:protex{%
+%   \ifvmode \csname IgnorePar\endcsname
+%   \else    \hfil\break\fi
+%   \csname EndP\endcsname
+   \HCode{\ifx \:test\:minus  \else <br />\fi
+      \html:src<span class="ShowCode"
+      style="font-family:monospace;white-space:nowrap;"
+ >\html:invisible}%
+   \nobreak %  \hskip\leftskip  \hskip\parindent
+}
+\def\b:protex{\HCode{\html:BackTitle\html:src</span>}}
+\def\e:protex{\HCode{<br />\html:invisible}}
+\def\c:protex{\HCode{<i>}}
+\def\d:protex{\HCode{</i>}}
+\def\f:protex{\def\:Sp{\HCode{\string&\#x00A0;}}}
+\long\def\c:ShowCode:#1#2#3#4#5#6{\def\a:protex{#1}%
+   \def\b:protex{#2}\def\e:protex{#3}\def\c:protex{#4}%
+   \def\d:protex{#5}\def\f:protex{\def\:Sp{#6}}}
+\def\L:Del{<..}
+\def\l:Del{<.}
+\def\R:Del{..>}
+\def\ttl:del#1{\def\:tempa{#1}%
+   \ifx \:tempa\L:Del \L:del
+   \else \ifx \:tempa\l:Del \l:del
+   \else \ifx \:tempa\R:Del \R:del
+   \else \r:del \fi\fi\fi}
+\def\HShowCode#1#2#3#4#5{%
+   \def\:temp{#1#2}\ifx \:temp\empty \else
+     \def\L:del{#1}\def\R:del{#2}\fi
+   \def\:temp{#3#4}\ifx \:temp\empty \else
+     \def\l:del{#3}\def\r:del{#4}\fi
+   \def\:temp{#5}\ifx \:temp\empty \else
+     \def\html:BackTitle{#5}\fi
+}
+\bgroup
+\catcode`\_=12
+\gdef\:temp{\HShowCode{<..}{..>}{<.}{.>}{-_-_-}} \aftergroup\:temp
+\egroup
+\let\html:ProTexMssg=\ProTexMssg
+\def\ProTexMssg{%
+   {\let\:gobble=\empty\def\:TagCs{\:FileName}\:WriteTrc{FileName}}%
+   \html:ProTexMssg  }
+\catcode`\^^I=13\catcode`\ =13\catcode`\^^M=13%
+\def\:ObeyIn{\CodeFont\parindent=0pt%
+   \parskip=0pt\everypar{}%
+   \:NoSpecials{12}{0}{255}\catcode`\ =13%
+   \catcode`\^^M=13\catcode`\^^I=13%
+   \def^^M{\leavevmode\e:protex\par}\def^^I{  }%
+   \def {\leavevmode\:Sp}}%
+\catcode`\^^M=5\catcode`\ =10\catcode`\^^I=10
+\expandafter\ifx \csname :Sp\endcsname\relax
+  \expandafter\def\csname :Sp\endcsname{ }
+\fi
+\def\ShowFile#1{{\:ObeyIn    \openin15=#1
+  \ifeof15 \:warn{\string\ShowFile{#1}?}\else
+    \a:ShowFile\input #1 \b:ShowFile \fi \closein15 }}
+\def\a:ShowFile{\ifvmode \csname IgnorePar\endcsname\fi
+   \csname EndP\endcsname
+   \HCode{<div class="ShowFile"
+      style="font-family:monospace;white-space:nowrap;"
+ >\html:src\html:invisible}\hfill\break
+   \f:protex }
+\def\b:ShowFile{\HCode{</div>\html:src}}
+\long\def\c:ShowFile:#1#2{\def\a:ShowFile{#1}\def\b:ShowFile{#2}}
+\def\html:codeid#1Q#2"#3</\tag:A>{ \NAME:
+   "Q#2"}
+\ifx \aXrefFile\:UnDef \let\aXrefFile=\empty \fi
+
+\def\CodeId#1#2{\expandafter\ifx
+    \csname  cw:)F\aXrefFile \file:id
+                    \empty F-\endcsname\relax
+  \else\:LikeRef{)F\aXrefFile \file:id\empty F-}\fi
+  \:sharp              Q\make:addr{#2}"#1%
+  \ifx \CodeInputLineNo\:UnDef \the\inputlineno \else \CodeInputLineNo\fi}
+\let\showttl:WriteTrc=\:WriteTrc
+\def\:WriteTrc#1{%
+  \def\:temp{#1}\def\:tempa{ShowCode}\ifx\:temp\:tempa
+     \def\:TagCs{\expandafter\trc:shw\:LastCodeLabel\trc:shw}%
+  \else \ifx \id:WriteTrc\:Undef
+     \def\:tempa{ShowTitle}\ifx\:temp\:tempa
+     \expandafter\def\expandafter\:TagCs\expandafter
+         {\:TagCs.\the\:CodeNumber}%
+  \fi \fi \fi
+  \showttl:WriteTrc{#1}}
+\def\trc:shw#1"#2\trc:shw{#2 "#1"}
+\ifx \footline\:UnDef \else
+   \footline={\hfil}   \headline={\hfil}
+\fi
+\def\HREF:{ href=}
+\def\tag:A{a}
+\def\NAME:{ name=}
+\def\make:addr#1{%
+   \ifnum\clearcode:id>0 \romannumeral\clearcode:id Q\else PrTx\fi
+   #1}
+\ifx\clearcode:id\:UnDef
+     \def\clearcode::id{0}  \def\clearcode:id{0}
+\fi
+\ifx \html:par\:UnDef \def\html:par{\HCode{<p>}} \fi
+\def\html:invisible{<!--x-->\string&\#x00A0;}
+\expandafter\ifx\csname htmlprotex:par\endcsname\relax
+   \ifx\:removeindenttrue\:UnDef
+      \def\:removeindenttrue{\let\:Undef=\:Undef}
+   \fi
+   \def\htmlprotex:par{{\everypar{}\csname
+                HtmlPar\endcsname}\HCode{\html:src}}
+\fi
+\ifx\html:addr\:UnDeF
+   \immediate\write16{--- needs --- tex4ht \jobname\space ---}%
+\ifx\tmp:cnt\:UnDeF    \csname newcount\endcsname\tmp:cnt \fi
+\def\g:advance#1{\bgroup \def\:temp{#1}%
+                 \tmp:cnt=#1\afterassignment\:gplus \advance\tmp:cnt}
+\def\:gplus{\expandafter\xdef\:temp{\the\tmp:cnt}\egroup}
+\def\html:lbl{1}
+\def\html:addr{\xdef\last:haddr{\file:id-\html:lbl}%
+     \g:advance\html:lbl by 1\relax }
+\ifx  \file:id\:UnDef
+   \gdef\file:id{1}
+   \global\let\maxfile:id=\file:id
+\fi
+\hbadness=10000      \vbadness=10000
+\:CheckOption{fussy}  \if:Option  \else
+   \hfuzz=99in          \vfuzz=\hfuzz
+\fi
+\hyphenpenalty=1000  \exhyphenpenalty=1000
+\def\html:rightskip{\rightskip = 0pt plus 0.5\hsize  minus0.5\hsize }
+\html:rightskip
+\ifx \ht:special\:UnDef
+   \let\ht:special=\special
+\fi
+\def\HCode#1{\ifx \EndPicture\:UnDef
+   \relax\ifvmode\leavevmode\fi\ht:special{t4ht=#1}\fi}
+\let\:HCode=\HCode
+\let\Hbrakets\empty
+\def\NewLineChar{\bgroup \catcode`\^=7 \:NewLineChar}
+\def\:NewLineChar#1{\egroup \def\:newlnch{ #1}}
+\NewLineChar{^^J}
+\def\::HRef[#1]{\get:attr{#1}\::hRef\:::HRef}
+\def\::HRefTag[#1]{\get:attr{#1}\::hRefTag\:::HRefTag}
+\def\get:attr#1{\edef\:attr{\noexpand\get:atr #1 !*?: }\:attr}
+\def\get:atr#1 #2!*?: #3#4{\def\:attr{\space#2}%
+   \def\:te:mpa{#1}\ifx \:te:mpa\empty \let\:te:mpa#4\else
+   \def\:te:mpa{#3[#1]}\fi \:te:mpa}
+\def\H:Tag#1#2{\:TagHTag{#2}\HCode{\Hbrakets<\tag:A\:newlnch
+   \NAME:"#2"\empty:lnk>}}
+\def\::hRef[#1]#2{%
+   \HCode{\Hbrakets<\tag:A\:newlnch \if\relax#1#2\relax \NOHREF:{}\else
+             \HREF:"#1\if\relax#1\relax \else\:sharp #2\fi"\fi
+           \:attr \empty:lnk>}}
+\def\:::HRef#1{%
+   \HCode{\Hbrakets<\tag:A\:newlnch \if\relax#1\relax \NOHREF:{}\else
+               \HREF:"\get:hfile{#1}\:sharp #1"\fi \:attr \empty:lnk>}}
+\def\::hRefTag[#1]#2#3{%
+   \if\relax#3\relax\else\:TagHTag{#3}\fi
+   \HCode{\Hbrakets<\tag:A\:newlnch \if\relax#1#2\relax \NOHREF:{#3}\else
+                 \HREF:"#1\if\relax#2\relax \else\:sharp #2\fi"\fi
+               \if\relax#3\relax\else\space \NAME:"#3"\fi
+             \:attr \empty:lnk>}}
+\def\:::HRefTag#1#2{%
+   \if\relax#2\relax\else\:TagHTag{#2}\fi
+   \HCode{\Hbrakets<\tag:A\:newlnch \if\relax#1\relax \NOHREF:{#2}%
+                 \else\HREF:"\get:hfile{#1}\:sharp #1"\fi
+               \if\relax#2\relax\else\space  \NAME:"#2"\fi
+             \:attr \empty:lnk>}}
+\let\empty:lnk=\empty
+\def\NOHREF#1{\space}
+\def\:TagHTag#1{\ifx -\let:val\else \Tag{)Q\aXrefFile #1}{\file:id}\fi}
+\def\get:href{\expandafter\get::href}
+\def\get::href#1-#2-{\ifnum #1=\file:id\space         \else
+      \:LikeRef{)F\aXrefFile #1\empty F-}\fi
+   \:sharp \make:addr{#2}}
+\def\get:htag{\expandafter\get::htag}
+\def\get::htag#1-#2-{\make:addr{#2}}
+\ifx \aXrefFile\:UnDef \let\aXrefFile=\empty \fi
+
+\def\get:hfile#1{%
+   \expandafter\ifx\csname
+                cw:)Q\aXrefFile #1\endcsname\relax
+      \get@hfile{#1}%
+   \else
+      \expandafter\expandafter\expandafter\get::hfile
+          \csname  cw:)Q\aXrefFile #1\endcsname,//%
+   \fi  }
+\def\get::hfile#1,#2//{%
+   \ifnum \file:id=0#1  \else
+       \expandafter\ifx
+   \csname  cw:)F\aXrefFile #1%
+                 \empty F-\endcsname\relax \else
+      \:LikeRef{)F\aXrefFile #1\empty F-}%
+\fi %
+   \fi }
+\ifx\get@hfile\:Undef \let\get@hfile=\:gobble \fi
+      \let\html:src=\empty
+\catcode`\#=12   \def\:sharp{#}   \catcode`\#=6
+
+   \Htmltrue
+\fi
+
+
+\fi\:CheckOption{_^}  \if:Option
+\def\du:cc{\catcode`\_=13  \catcode`\^=13  \let\du:cc=\:UnDef}
+\let\:sub=_  \let\:sup=^
+\catcode`\_=13  \catcode`\^=13
+\def_{\ifmmode \:sub \else \string_\fi}
+\def^{\ifmmode \:sup \else \string^\fi}
+\:CheckOption{html}
+   \if:Option  \else \:CheckOption{xhtml}\fi
+\if:Option
+  \append:def\SUBOn{\def_{\ifmmode \:sub \else \string_\fi}}
+  \append:def\SUPOn{\def^{\ifmmode \:sup \else \string^\fi}}
+\fi
+
+  \fi\:CheckOption{pdf}
+\if:Option
+  \ifx \hyper:link\:UnDef   \let\:temp=\hyper:target
+\else                     \let\:temp=\:UnDef      \fi
+                            \ifx \:temp\:UnDef
+\def\hyper:link{\hyperlink}
+\def\hyper:target{\hypertarget}
+\def\:temp{\ifx\pdfstartlink\:UnDef       
+      \let\pdfstartlink\pdfannotlink
+  \fi
+  \ifx \pdfstartlink\:UnDef
+     \long\def\hyper:target##1##2{\special
+            {html:<a name="##1">}\special{html:</a>}}%
+     \long\def\hyper:link##1##2{\special
+            {html:<a href="##1">}##2\special{html:</a>}}%
+  \else
+     \long\def\hyper:target##1##2{\pdfdest name {##1} xyz}%
+     \long\def\hyper:link##1##2{%
+        \leavevmode \pdfstartlink  goto name {##1}##2\pdfendlink }    %
+  \fi
+}
+\ifx \hyperlink\:UnDef  \:temp
+\else   \ifx \hypertarget\:UnDef \:temp \fi \fi
+                            \fi
+\let\hyper::WindowTitle=\WindowTitle
+\def\WindowTitle#1{\bgroup
+   \def\WindowTitle##1{##1}%
+   \xdef\:temp{\noexpand\H:WindowTitle{#1}}\egroup \:temp}
+
+\def\H:WindowTitle#1{\leavevmode\hbox{%
+   \expandafter\ifx\csname \clearcode:id W-#1\endcsname\relax
+       \ttl:del{<.}%
+   \else
+       \hyper:link{\expandafter\get:href
+           \csname \clearcode:id W-#1\endcsname -}{\ttl:del{<.}}%
+   \fi
+   \html:addr
+   \hyper:target{\expandafter\get:htag\last:haddr -}{}%
+   \expandafter\expandafter\expandafter\global\expandafter\let
+                    \csname \clearcode:id W-#1\endcsname=\last:haddr
+   \expandafter\ifx\csname \clearcode:id :cw:#1\endcsname\relax
+      \expandafter\expandafter\expandafter\global
+          \expandafter\def\csname \clearcode:id :cw:#1\endcsname{0}%
+      \Tag{)\clearcode:id Z:#1}{\last:haddr}%
+   \fi
+   \def\:temp##1{\leavevmode \hbox{$\triangleleft
+      \triangleleft$}~##1~\hbox{$\triangleright \triangleright$}}%
+   \ifx \:temp    \hyper::WindowTitle \def\hyper::WindowTitle##1{~##1~}\fi
+   \hyper::WindowTitle{\frag:href{)\clearcode:id P:#1}{#1}}%
+   \:nextlink{\clearcode:id :cw:#1}{.>}%
+   }}
+\let\hyper::ModifyShowCode=\ModifyShowCode
+\def\ModifyShowCode#1{%
+   \hyper::ModifyShowCode{#1}%
+   \let\H:PortTitle=\PortTitle
+   \let\PortTitle=\hyper::PortTitle
+   }
+\let\hyper::PortTitle=\PortTitle
+\def\hyper::PortTitle#1{\hbox{%
+  \def\:Sp{ }%
+  \bgroup
+     \html:addr
+     \hyper:target{\get:htag\last:haddr-}{}%
+     \ifx\:AppendSign\empty
+        \expandafter\expandafter\expandafter\global\expandafter\edef
+               \csname \clearcode:id 9:#1\endcsname{0}%
+        \ttl:del{<..}%
+     \else
+        \hyper:link{\expandafter\get:href
+             \csname \space\clearcode:id P:#1\endcsname-}{\ttl:del{<..}}%
+     \fi
+     \expandafter\expandafter\expandafter\global\expandafter\let
+             \csname \space\clearcode:id P:#1\endcsname=\last:haddr
+  \egroup
+  \bgroup
+      \ifx\:AppendSign\empty
+         \Tag{)\clearcode:id P:#1}{\last:haddr}%
+      \fi
+      \def\:temp##1{\leavevmode \hbox{$\triangleright
+         \triangleright$}~##1~\hbox{$\triangleleft \triangleleft$}}%
+      \ifx \:temp\H:PortTitle \def\H:PortTitle##1{~##1~}\fi
+            \H:PortTitle{\frag:href{)\clearcode:id Z:#1}{#1}}%
+   \egroup
+  \:nextlink{\clearcode:id 9:#1}{..>}%
+}}
+\def\frag:href#1#2{%
+   \hyper:link{%
+     \expandafter\ifx \csname  cw:#1\endcsname \relax
+        \expandafter\get:href\last:haddr -%
+  \else
+     \expandafter\expandafter\expandafter
+                \get:href\csname cw:#1\endcsname -%
+  \fi}{#2}}
+\def\:nextlink#1#2{%
+   \bgroup    \def\:Sp{\space}%
+      \def\:lbl{)\the\tmp:cnt :#1}%
+      \tmp:cnt=\csname #1\endcsname\space
+      \Tag{\:lbl}{\last:haddr}%
+      \advance\tmp:cnt by 1\space
+      \expandafter\xdef\csname #1\endcsname{\the\tmp:cnt}%
+      \expandafter\ifx\csname  cw:\:lbl\endcsname\relax
+         \ttl:del{#2}%
+      \else
+         \hyper:link{\expandafter\expandafter\expandafter
+                       \get:href\:LikeRef{\:lbl}-}{\ttl:del{#2}}%
+      \fi
+   \egroup
+}
+\let\:sharp=\empty   \def\clearcode::id{0}  \def\clearcode:id{0}
+\def\file:id{1}
+\def\get:href{\expandafter\get::href}
+\def\get::href#1-#2-{\ifnum #1=\file:id\space         \else
+      \:LikeRef{)F\aXrefFile#1\empty F-}\fi
+   \:sharp \make:addr{#2}}
+\def\get:htag{\expandafter\get::htag}
+\def\get::htag#1-#2-{\make:addr{#2}}
+\def\get:hfile#1{%
+   \expandafter\ifx\csname
+                cw:)Q\aXrefFile#1\endcsname\relax
+      \get@hfile{#1}%
+   \else
+      \expandafter\expandafter\expandafter\get::hfile
+          \csname  cw:)Q\aXrefFile#1\endcsname,//%
+   \fi  }
+\ifx \aXrefFile\:UnDef \let\aXrefFile=\empty \fi
+\def\get::hfile#1,#2//{%
+   \ifnum \file:id=0#1  \else
+       \expandafter\ifx
+   \csname  cw:)F\aXrefFile#1%
+                 \empty F-\endcsname\relax \else
+      \:LikeRef{)F\aXrefFile#1\empty F-}%
+\fi %
+   \fi }
+\ifx\get@hfile\:Undef \let\get@hfile=\:gobble \fi
+\def\L:Del{<..}
+\def\l:Del{<.}
+\def\R:Del{..>}
+\def\ttl:del#1{\def\:tempa{#1}%
+   \ifx \:tempa\L:Del \L:del
+   \else \ifx \:tempa\l:Del \l:del
+   \else \ifx \:tempa\R:Del \R:del
+   \else \r:del \fi\fi\fi}
+\def\HShowCode#1#2#3#4#5{%
+   \def\:temp{#1#2}\ifx \:temp\empty \else
+     \def\L:del{#1}\def\R:del{#2}\fi
+   \def\:temp{#3#4}\ifx \:temp\empty \else
+     \def\l:del{#3}\def\r:del{#4}\fi
+   \def\:temp{#5}\ifx \:temp\empty \else
+     \def\html:BackTitle{#5}\fi
+}
+\HShowCode{$\triangleleft\triangleleft$}
+          {$\triangleright\triangleright$}
+          {$\triangleright\triangleright$}
+          {$\triangleleft\triangleleft$}   {}
+\ifx\tmp:cnt\:UnDeF    \csname newcount\endcsname\tmp:cnt \fi
+\def\g:advance#1{\bgroup \def\:temp{#1}%
+                 \tmp:cnt=#1\afterassignment\:gplus \advance\tmp:cnt}
+\def\:gplus{\expandafter\xdef\:temp{\the\tmp:cnt}\egroup}
+\def\html:lbl{1}
+\def\html:addr{\xdef\last:haddr{\file:id-\html:lbl}%
+     \g:advance\html:lbl by 1\relax }
+\def\make:addr#1{%
+   \ifnum\clearcode:id>0 \romannumeral\clearcode:id Q\else PrTx\fi
+   #1}
+
+\def\:LikeRef#1{\csname  cw:#1\endcsname}
+
+\fi \def\AlProTex{\:warn{AlProTex already loaded}}
+\let\:InitAlProTex=\:undefined
+\let\:CheckOption=\:undefined
+\let\:GetOptions=\:undefined
+
+\def\:temp{ \let\:temp=\:undefined
+   \csname :notex\endcsname \csname :getpseducodeII\endcsname
+    \endinput}
+\:RestoreCatcodes
+\csname :temp\endcsname
+
Index: trunk/lit/ProTex.sty
===================================================================
--- trunk/lit/ProTex.sty	(revision 0)
+++ trunk/lit/ProTex.sty	(working copy)
@@ -0,0 +1,354 @@
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  v 1.5
+%  ProTex                                               %
+%  Copyright (C) 1990,1991 by Eitan M. Gurari           %
+%                                                       %
+% This program can redistributed and/or modified under  %
+% the terms of the LaTeX Project Public License         %
+% Distributed from CTAN archives in directory           %
+% macros/latex/base/lppl.txt; either version 1 of the   %
+% License, or (at your option) any later version.       %
+%                                                       %
+% However, you are allowed to modify this program       %
+% without changing its name, if you modify its          %
+% signature. Changes to the signature can be introduced %
+% with a directive of the form                          %
+%            \message{signature}                        %
+%                                                       %
+%                            gurari@cis.ohio-state.edu  %
+%                http://www.cis.ohio-state.edu/~gurari  %
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\expandafter\edef\csname :RestoreCatcodes\endcsname{%
+   \catcode`\noexpand :=\the\catcode`:%
+   \catcode`\noexpand @=\the\catcode`@%
+   \catcode`\noexpand -=\the\catcode`-%
+   \catcode`\noexpand +=\the\catcode`+%
+   \catcode`\noexpand ^=\the\catcode`^%
+   \let\expandafter\noexpand\csname:RestoreCatcodes\endcsname=
+                                   \noexpand\undefined}
+\catcode`\:=11 \catcode`\@=11  \catcode`\^=7
+\def\:latexpg{\ifx\pageno\:undefined
+  \let\pageno=\c@page \fi}
+\:latexpg
+\def\:minus{-}  \catcode`\-=13  \catcode`\+=13
+\def\Code#1#2{%
+  {\:TraceDef#1{#2}}%
+  \ifx #1\:undefined   \else  \def#1{}%
+   \:warn{\string\Code\space redefines \string#1}\fi
+\ifx #1\:undefined   \ModifyCode{#1}\fi
+  \gdef#1{-{#2}{\string#1}}\AppendCode#1}\def\ModifyCode#1{}
+
+\def\:warn#1{\immediate \write16{l.\the\inputlineno
+   \space\:minus\string- Warning \:minus\string- #1}}
+\def\:CheckCommand#1#2{%
+   \def-##1##2{\let\:undefined=\relax}%
+   \def+##1##2{}%
+   #2\relax
+   \ifx \:undefined\relax     \else
+      \errmessage{\string#1\string#2 without
+                  \string\Code\string#2}\fi}
+\def\AppendCode#1{%
+   \begingroup
+      \:CheckCommand\AppendCode#1%
+      \:defaultcats
+      \def\:ScanAppend##1{\endgroup
+         \:ifempty{##1}\else
+   \global\advance\:CodeNumber by 1
+   {\def\:TagCs{\string#1.\the\:CodeNumber}%
+ \:WriteTrc{DefineCode}}%
+   \:ExpandDef#1{+{##1}}{\noexpand
+      {\CodeId{\string#1}{\the\:CodeNumber}\noexpand}}%
+   \AfterCode{#1}%
+\fi}%
+      \ModifyAppendCode{#1}\relax
+      \:ScanAppend}\def\ModifyAppendCode#1{} \def\AfterCode#1{}
+
+\def\:ifempty#1{\def\:parm{#1}%
+   \ifx \:parm\empty}\def\CodeId#1#2{#1.#2} \newcount\:CodeNumber
+\newtoks\:tokens
+\def\:ExpandDef#1#2#3{%
+   \:tokens=\expandafter{#1#2}%
+   \xdef#1{\the\:tokens #3}}\def\:defaultcats{%
+  \:NoSpecials{12}{0}{255}%
+  \:NoSpecials{11}{65}{90}%
+  \:NoSpecials{11}{97}{122}%
+  \catcode`\\=0  \catcode`\{=1    \catcode`\}=2
+  \catcode`\ =13 \catcode`\^^M=13 \catcode`\^^I=13 }
+%% BOC
+%% 2016/06/01 dg
+\newtoks\:tokensi
+\newtoks\:tokensii
+\def\:ExpandDefScrLineNo#1#2#3{%
+   \:tokens=\expandafter{#1}%
+   \:tokensii={#2}%
+   \edef\@a@{\noexpand\:tokensi={\CodeInputLine}}\@a@
+   \xdef#1{\the\:tokens\the\:tokensi\the\:tokensii #3}}
+  \def\:defaultcats{%
+  \:NoSpecials{12}{0}{255}%
+  \:NoSpecials{11}{65}{90}%
+  \:NoSpecials{11}{97}{122}%
+  \catcode`\\=0  \catcode`\{=1    \catcode`\}=2
+  \catcode`\ =13 \catcode`\^^M=13 \catcode`\^^I=13 }
+\def\:srclinebol{\%}
+\def\srclineBOL#1{\gdef\:srclinebol{#1}}
+\def\CodeInputLine{^^J\:srclinebol line \CodeInputLineNo\space "./\jobname.tex" ^^J}%
+\def\SetOutputWithLineNo{\let\:ExpandDef\:ExpandDefScrLineNo}
+\let\CodeLineNo\SetOutputWithLineNo
+% EOC
+
+\def\:NoSpecials#1#2#3{\edef\:temp{\the\:CodeNumber}%
+  \global\:CodeNumber=#3
+  \def\:next{\catcode\:CodeNumber=#1
+    \ifnum \:CodeNumber=#2 \let\:next=\relax \fi
+    \global\advance\:CodeNumber by \:minus1 \:next}\:next
+  \global\:CodeNumber=\:temp  }
+\def-#1#2{{\CodeFont \WindowTitle{#1}}}
+\def+#1#2{}
+\def\WindowTitle#1{\leavevmode \hbox{$\triangleleft
+   \triangleleft$}~#1~\hbox{$\triangleright
+   \triangleright$}}
+\let\CodeFont=\tt  
+\def\ShowCode#1{%
+   \def\:test{#1}%
+   \ifx \:test\:minus  \expandafter\:ShowCode  \else
+                                   \:ShowCode#1\fi}\def\:ShowCode#1{%
+   \begingroup  \:ShowCommands
+      \:SpTbLn
+\def\\{\char 92 }%
+\def\{{\char 123 }%
+\def\}{\char 125 }%
+\ifvmode
+   \def\:Sp{\leavevmode\phantom{x}}%
+   \def\:Tb{\:Sp\:Sp}%
+   \def\:Ln{\leavevmode\par}%
+\else
+   \def\:Sp{ }%
+   \def\:Tb{ \ignorespaces}%
+   \def\:Ln{\:Tb}%
+\fi
+      \ifvmode  \everypar={}%
+   \:CodeSkip
+   \parskip=0em  \parindent=\:minus3em
+   \advance \leftskip by 6em
+   %
+   \def\:TopTitle##1{{\:TitleShift
+            \noindent \hfil \:FrontTitle{##1}\par
+            \nobreak \smallskip}}%
+   \def\:BottomTitle{{\par  \nobreak  \:TitleShift
+            \noindent  \hfil \:BackTitle\par}}%
+\else
+   \def\:TopTitle##1{\:FrontTitle{##1} }%
+   \def\:BottomTitle{ \:BackTitle}%
+   \def\:CodeSkip{}%
+\fi
+\def\:FrontTitle##1{\PortTitle{##1}\:AppendSign}%
+\def\:BackTitle{\hbox{$\diamond\diamond\diamond$}}%
+%
+\def\PortTitle##1{\leavevmode \hbox{$\triangleright
+   \triangleright$}~##1~\hbox{$\triangleleft
+   \triangleleft$}}%
+\def-##1##2{}%
+\def+##1##2{\let+=\:next}%
+\def\:next##1##2{\def\:AppendSign{\char43 }}%
+\def\:AppendSign{}%
+#1\relax
+      \def-##1##2{}%
+\def+##1##2{\def\:LastCodeLabel{##2}}%
+\def\:LastCodeLabel{}%
+#1\relax
+\ifx\:LastCodeLabel\empty\else
+   {\def\:TagCs{\:LastCodeLabel}\:WriteTrc{ShowCode}}%
+\fi
+      \CodeFont
+      \:CheckCommand{\ShowCode}{#1}%
+      \ModifyShowCode{#1}\relax
+      \ifx \:test\:minus \else
+   \def-##1##2{\:TopTitle{##1}}%
+   \def+##1##2{}%
+   \ModifyFrontTitle{#1}\relax
+   #1\relax
+\fi
+      \def-##1##2{}%
+\def+##1##2{\def\:LastCode{##1}}%
+\def\:LastCode{}%
+\ModifyLastCode{#1}\relax
+#1\relax\def-##1##2{{\def\:TagCs{##2}\:WriteTrc{ShowTitle}}%
+   \WindowTitle{##1}}%
+\def+##1##2{}%
+\ModifyShowLastCode{#1}\relax
+\:LastCode
+      \ifx \:test\:minus \else
+   \:BottomTitle
+\fi
+\:CodeSkip
+   \endgroup}
+
+\def\ModifyShowCode#1{}
+\def\:CodeSkip{\ifdim \CodeSkipAmount>0pt
+                     \vskip\:minus\lastskip \fi
+  \vskip\CodeSkipAmount}
+\def\CodeSkipAmount{\medskipamount}
+\def\ShiftTitle#1{%   
+   \def\:TitleShift{\advance \leftskip by #1}}
+\ShiftTitle{\:minus6em}
+\def\ModifyFrontTitle#1{}\def\ModifyLastCode#1{}
+\def\ModifyShowLastCode#1{}\begingroup
+   \catcode`\.=10  \catcode`\^^I=13  \catcode`\^^M=13%
+   \catcode`\ =13%
+...\gdef\:SpTbLn{%
+......\def {\:Sp}\def^^M{\:Ln}\def^^I{\:Tb}}%
+\endgroup\begingroup
+  \catcode`\{=12  \catcode`\}=12
+  \catcode`\[=1   \catcode`\]=2
+     \gdef\:lbrc[{]  \gdef\:rbrc[}]
+  \catcode`\,=0  \catcode`\\=12
+     ,gdef,:backslash[\]
+,endgroup
+\catcode`\%=12 \catcode`\@=14
+\def\:ShowCommands{@         \tempor 
+   \ifvmode
+      \linepenalty=100
+      \def\NL%{$\rightarrow\rightarrow$\hfill\break}@
+      \def\%##1\%{{\CommentFont          
+         \def\:Tb{ \ignorespaces}@
+         \def\:Sp{ }@
+         \def\:Ln{\hfill\break}@
+         ##1}}@
+   \else
+      \def\NL%{}@
+      \def\%##1\%{{\CommentFont ##1}}@
+   \fi}
+\def\CommentFont{\it}
+\def\:OutCommands{\def\NL%{}\def\%##1\%{}}
+\catcode`\%=14  \catcode`\@=11 \def\:OutputCode#1{%
+   \begingroup \:OutCommands
+      \:CheckCommand{\OutputCode}{#1}%
+      \:latexpg
+      {\def\:TagCs{\string#1}\:WriteTrc{OutputCode}}%
+      \def\Tag##1##2{}\def\Ref##1{}%
+      \:SpTbLn      
+\def\:Sp{ }%
+\def\:Tb{\:Sp\:Sp}%
+\newlinechar`\^^J     \def\:Ln{^^J}%
+\def\\{\:backslash}%
+\def\{{\:lbrc}%
+\def\}{\:rbrc}%
+      \def\Extension{prg}%
+      \def\:WriteCode{\immediate\write15{#1}}%
+      % rules for expanding the code macros
+         \def-##1##2{}%
+         \def+##1##2{\:comment{##2\ifx \CodeId\:gobbleii\else...\fi}##1%
+                     \:comment{\ifx \CodeId\:gobbleii\else...\fi##2}}%
+      % name for the auxiliary code file
+         \def\:gobble##1{}%
+         \def\:FileName{\expandafter
+            \:gobble\string#1.\Extension}%
+      % writing the file
+         \ModifyOutputCode{#1}\relax
+         \immediate\openout15=\:FileName  \:WriteCode
+         \immediate\closeout15
+      % notifying the user
+         \ProTexMssg{\string-\string-\string-
+            Writing file    \string-\string-\string-
+            \:FileName\space\string-\string-\string-}%
+   \endgroup }
+\def\:gobbleii#1#2{}
+\def\ProTexMssg{\immediate\write16}
+
+\def\:ParOutputCode#1]#2{{%
+   \let\:ModifyOutputCode=\ModifyOutputCode
+   \def\ModifyOutputCode##1{\:ModifyOutputCode{##1}%
+      \def\Extension{#1}}%
+   \:OutputCode #2}}
+
+\def\OutputCode#1{%
+   \ifx#1[\let\:next=\:ParOutputCode
+    \else \def\:next{\:OutputCode#1}\fi \:next}
+
+\def\ModifyOutputCode#1{}\def\:comment#1{}
+\def\Comment{\begingroup
+   \:defaultcats
+   \::comment}
+
+\def\::comment#1#2{\endgroup
+   \def\:flag{}%
+   \:ifempty{#1}\else \def\:flag{.}\fi
+   \:ifempty{#2}\else \def\:flag{.}\fi
+   \ifx \:flag\empty  \def\:comment##1{}%
+\else              \def\:comment##1{#1##1#2}\fi}
+\def\Ref#1{%
+   \:ifempty{#1}\:warn{Empty field in \noexpand\Ref}%
+   \else
+      \expandafter\ifx \csname  cw:#1\endcsname \relax
+         \:NoTag{#1}%
+      \else \expandafter\csname cw:#1\endcsname \fi
+    \fi}
+\def\Tag#1#2{%
+  \:ifempty{#1}\:warn{First field
+                         empty in \noexpand\Tag}%
+  \else
+     \begingroup
+        \:latexpg
+        \edef\:head{\:TagCs\space{#1}{#2}}%
+        \def\:write{\write\:refout}%
+        \expandafter \expandafter
+           \expandafter\:write
+              \expandafter{\:head{\the\pageno}}%
+     \endgroup
+  \fi}
+
+\let\:trc=\Tag
+\def\:TagCs{\string\:CrossWord}                                \catcode`\-=12   \catcode`\+=12
+\ifx \:refout\:UnDef
+   \openin15    \jobname.xref
+   \ifeof15     \immediate\write16{No file \jobname.xref}
+                \def\:NoTag#1{\hbox{$???$}}
+   \else
+      \begingroup
+         \def\:CrossWord#1#2#3{%
+   \def\:parm{#2}%
+   \ifx \:parm\empty  \:AddTag{#1}{#3}\else
+                      \:AddTag{#1}{#2}\fi}
+
+\def\:AddTag#1#2{%
+   \expandafter \ifx \csname  cw:#1\endcsname \relax
+         \def \:entries{#2}%
+   \else \edef\:entries{\csname  cw:#1\endcsname , #2}%
+   \fi
+   \expandafter \xdef \csname cw:#1\endcsname{\:entries}}
+         \input \jobname.xref
+      \endgroup
+      \def\:NoTag#1{\hbox{$???$}%
+                    \:warn{\string\Ref\string{\string#1\string}?}}
+   \fi
+   \closein15
+\fi
+                                 \catcode`\-=13   \catcode`\+=13
+\ifx \:refout\:UnDef
+   \csname newwrite\endcsname\:refout
+          \openout\:refout=\jobname.xref
+\fi 
+\newwrite\:trcfile
+\immediate\openout\:trcfile=\jobname.trc
+
+\def\:WriteTrc#1{{\let\:refout=\:trcfile
+   \:trc{\string#1}{\the\inputlineno}}}
+\def\:TraceDef#1#2{\:tokens={#2}%
+   \immediate\write\:trcfile{%
+      \string#1\space{DefineTitle}{{\the
+                   \:tokens};;\the\inputlineno}{}}}
+\def\:AlProTex{\ifx \:next[
+  \def\AlProTex[##1]##2{\egroup \def\AlProTex{##2}\input ##1 }
+  \else
+  \def\AlProTex##1{\egroup \def\AlProTex{##1}\input AlProTex.sty }
+  \fi        \let\:AlProTex=\:undefined        \AlProTex}
+\def\AlProTex{\bgroup  \catcode`\@=12     \catcode`\^=7  \catcode`\_=8
+  \futurelet\:next\:AlProTex}
+\ifx \inputlineno\undefined
+  \csname newcount\endcsname\inputlineno
+  \let\:oldNoSpecials=\:NoSpecials
+  \def\:NoSpecials#1#2#3{\ifnum #3>127
+     \:oldNoSpecials{#1}{#2}{127}\else
+     \:oldNoSpecials{#1}{#2}{#3}\fi }
+\fi 
+\:RestoreCatcodes \endinput
+
Index: trunk/lit/tex4ht-4ht.tex
===================================================================
--- trunk/lit/tex4ht-4ht.tex	(revision 167)
+++ trunk/lit/tex4ht-4ht.tex	(working copy)
@@ -99,7 +99,8 @@
 \fi
 
 \next
-
+% \CodeLineNo % Set line numbers in the output. 
+% \srclineBOT{some symbol} %% change the beginning-of-line symbol.
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \expandafter \ifx \csname append:def\endcsname \relax
    \expandafter\def\csname append:def\endcsname#1#2{%
Index: trunk/lit/tex4ht-c.tex
===================================================================
--- trunk/lit/tex4ht-c.tex	(revision 167)
+++ trunk/lit/tex4ht-c.tex	(working copy)
@@ -109,8 +109,9 @@
 
 
 \input ProTex.sty
-\ifHtml    \AlProTex{c,<<<>>>,`,title,list,ClearCode,_^}
 
+\ifHtml    \AlProTex{c,<<<>>>,`,title,list,ClearCode,_^,CodeLineNo}
+
     \let\coDE=\<
     \def\<{\vfil\par\coDE}
 
Index: trunk/lit/tex4ht-t4ht.tex
===================================================================
--- trunk/lit/tex4ht-t4ht.tex	(revision 167)
+++ trunk/lit/tex4ht-t4ht.tex	(working copy)
@@ -15,8 +15,9 @@
 \Preamble{xhtml,th4,sections+,xhtml}\EndPreamble    
 
    \input ProTex.sty
-   \AlProTex{perl,<<<>>>,`,title,list,_^}
+   \AlProTex{c,<<<>>>,`,title,list,_^,CodeLineNo}
 
+
 %\input tex4ht-cpright.tex
 
 \Comment{   
