doc-src/rail.sty
author obua
Fri, 16 Sep 2005 21:02:15 +0200
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fixed HOL-light/Isabelle syntax incompatability via more protect_xxx functions
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% rail.sty - style file to support railroad diagrams
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%
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% 09-Jul-90 L. Rooijakkers
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% 08-Oct-90 L. Rooijakkers	fixed centering bug when \rail@tmpc<0.
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% 07-Feb-91 L. Rooijakkers	added \railoptions command, indexing
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% 08-Feb-91 L. Rooijakkers	minor fixes
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% 28-Jun-94 K. Barthelmann	turned into LaTeX2e package
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% 08-Dec-96 K. Barthelmann	replaced \@writefile
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% 13-Dec-96 K. Barthelmann	cleanup
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% 22-Feb-98 K. Barthelmann	fixed catcodes of special characters
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% 18-Apr-98 K. Barthelmann	fixed \par handling
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% 19-May-98 J. Olsson		Added new macros to support arrow heads.
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% 26-Jul-98 K. Barthelmann	changed \par to output newlines
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%
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% This style file needs to be used in conjunction with the 'rail'
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% program. Running LaTeX as 'latex file' produces file.rai, which should be
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% processed by Rail with 'rail file'. This produces file.rao, which will
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% be picked up by LaTeX on the next 'latex file' run.
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%
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% LaTeX will warn if there is no file.rao or it's out of date.
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%
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% The macros in this file thus consist of two parts: those that read and
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% write the .rai and .rao files, and those that do the actual formatting
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% of the railroad diagrams.
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\NeedsTeXFormat{LaTeX2e}
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\ProvidesPackage{rail}[1998/05/19]
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% railroad diagram formatting parameters (user level)
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% all of these are copied into their internal versions by \railinit
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%
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% \railunit : \unitlength within railroad diagrams
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% \railextra : extra length at outside of diagram
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% \railboxheight : height of ovals and frames
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% \railboxskip : vertical space between lines
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% \railboxleft : space to the left of a box
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% \railboxright : space to the right of a box
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% \railovalspace : extra space around contents of oval
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% \railframespace : extra space around contents of frame
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% \railtextleft : space to the left of text
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% \railtextright : space to the right of text
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% \railtextup : space to lift text up
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% \railjoinsize : circle size of join/split arcs
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% \railjoinadjust : space to adjust join
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%
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% \railnamesep : separator between name and rule body
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\newlength\railunit
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\newlength\railextra
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\newlength\railboxheight
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\newlength\railboxskip
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\newlength\railboxleft
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\newlength\railboxright
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\newlength\railovalspace
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\newlength\railframespace
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\newlength\railtextleft
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\newlength\railtextright
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\newlength\railtextup
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\newlength\railjoinsize
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\newlength\railjoinadjust
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\newlength\railnamesep
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% initialize the parameters
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\setlength\railunit{1sp}
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\setlength\railextra{4ex}
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\setlength\railboxleft{1ex}
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\setlength\railboxright{1ex}
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\setlength\railovalspace{2ex}
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\setlength\railframespace{2ex}
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\setlength\railtextleft{1ex}
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\setlength\railtextright{1ex}
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\setlength\railjoinadjust{0pt}
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\setlength\railnamesep{1ex}
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\DeclareOption{10pt}{
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  \setlength\railboxheight{16pt}
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  \setlength\railboxskip{24pt}
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  \setlength\railtextup{5pt}
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  \setlength\railjoinsize{16pt}
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}
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\DeclareOption{11pt}{
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  \setlength\railboxheight{16pt}
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  \setlength\railboxskip{24pt}
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  \setlength\railtextup{5pt}
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  \setlength\railjoinsize{16pt}
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}
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\DeclareOption{12pt}{
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  \setlength\railboxheight{20pt}
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  \setlength\railboxskip{28pt}
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  \setlength\railtextup{6pt}
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  \setlength\railjoinsize{20pt}
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}
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\ExecuteOptions{10pt}
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\ProcessOptions
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% internal versions of the formatting parameters
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%
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% \rail@extra   : \railextra
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% \rail@boxht   : \railboxheight
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% \rail@boxsp   : \railboxskip
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% \rail@boxlf   : \railboxleft
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% \rail@boxrt   : \railboxright
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% \rail@boxhht  : \railboxheight / 2
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% \rail@ovalsp  : \railovalspace
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% \rail@framesp : \railframespace
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% \rail@textlf  : \railtextleft
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% \rail@textrt  : \railtextright
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% \rail@textup  : \railtextup
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% \rail@joinsz  : \railjoinsize
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% \rail@joinhsz : \railjoinsize / 2
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% \rail@joinadj : \railjoinadjust
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%
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% \railinit : internalize all of the parameters.
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\newcount\rail@extra
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\newcount\rail@boxht
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\newcount\rail@boxsp
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\newcount\rail@boxlf
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\newcount\rail@boxrt
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\newcount\rail@boxhht
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\newcount\rail@ovalsp
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\newcount\rail@framesp
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\newcount\rail@textlf
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\newcount\rail@textrt
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\newcount\rail@textup
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\newcount\rail@joinsz
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\newcount\rail@joinhsz
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\newcount\rail@joinadj
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\newcommand\railinit{
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\rail@extra=\railextra
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\divide\rail@extra by \railunit
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\rail@boxht=\railboxheight
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\divide\rail@boxht by \railunit
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\rail@boxsp=\railboxskip
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\divide\rail@boxsp by \railunit
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\rail@boxlf=\railboxleft
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\divide\rail@boxlf by \railunit
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\rail@boxrt=\railboxright
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\divide\rail@boxrt by \railunit
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\rail@boxhht=\railboxheight
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\divide\rail@boxhht by \railunit
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\divide\rail@boxhht by 2
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\rail@ovalsp=\railovalspace
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\divide\rail@ovalsp by \railunit
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\rail@framesp=\railframespace
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\divide\rail@framesp by \railunit
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\rail@textlf=\railtextleft
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\divide\rail@textlf by \railunit
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\rail@textrt=\railtextright
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\divide\rail@textrt by \railunit
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\rail@textup=\railtextup
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\divide\rail@textup by \railunit
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\rail@joinsz=\railjoinsize
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\divide\rail@joinsz by \railunit
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\rail@joinhsz=\railjoinsize
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\divide\rail@joinhsz by \railunit
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\divide\rail@joinhsz by 2
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\rail@joinadj=\railjoinadjust
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\divide\rail@joinadj by \railunit
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}
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\AtBeginDocument{\railinit}
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% \rail@param : declarations for list environment
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%
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% \railparam{TEXT} : sets \rail@param to TEXT
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%
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% \rail@reserved : characters reserved for grammar
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\newcommand\railparam[1]{
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\def\rail@param{
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  \setlength\leftmargin{0pt}\setlength\rightmargin{0pt}
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  \setlength\labelwidth{0pt}\setlength\labelsep{0pt}
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  \setlength\itemindent{0pt}\setlength\listparindent{0pt}
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  #1
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}
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}
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\railparam{}
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\newtoks\rail@reserved
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\rail@reserved={:;|*+?[]()'"}
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% \rail@termfont : format setup for terminals
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%
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% \rail@nontfont : format setup for nonterminals
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%
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% \rail@annofont : format setup for annotations
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%
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% \rail@rulefont : format setup for rule names
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%
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% \rail@indexfont : format setup for index entry
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%
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% \railtermfont{TEXT} : set terminal format setup to TEXT
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%
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% \railnontermfont{TEXT} : set nonterminal format setup to TEXT
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%
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% \railannotatefont{TEXT} : set annotation format setup to TEXT
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%
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% \railnamefont{TEXT} : set rule name format setup to TEXT
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%
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% \railindexfont{TEXT} : set index entry format setup to TEXT
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\def\rail@termfont{\ttfamily\upshape}
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\def\rail@nontfont{\rmfamily\upshape}
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\def\rail@annofont{\rmfamily\itshape}
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\def\rail@namefont{\rmfamily\itshape}
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\def\rail@indexfont{\rmfamily\itshape}
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\newcommand\railtermfont[1]{
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\def\rail@termfont{#1}
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}
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\newcommand\railnontermfont[1]{
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\def\rail@nontfont{#1}
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}
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\newcommand\railannotatefont[1]{
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\def\rail@annofont{#1}
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}
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\newcommand\railnamefont[1]{
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\def\rail@namefont{#1}
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}
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\newcommand\railindexfont[1]{
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\def\rail@indexfont{#1}
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}
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% railroad read/write macros
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%
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% \begin{rail} TEXT \end{rail} : TEXT is written out to the .rai file,
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%                                as \rail@i{NR}{TEXT}. Then the matching
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%                                \rail@o{NR}{FMT} from the .rao file is
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%                                executed (if defined).
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%
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% \railoptions{OPTIONS} : OPTIONS are written out to the .rai file,
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%                         as \rail@p{OPTIONS}.
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%
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% \railterm{IDENT,IDENT,...} : format IDENT as terminals. writes out
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%                              \rail@t{IDENT} to the .rai file
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%
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% \railalias{IDENT}{TEXT} : format IDENT as TEXT. defines \rail@t@IDENT as
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%                           TEXT.
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%
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% \railtoken{IDENT}{TEXT} : abbreviates \railalias{IDENT}{TEXT}\railterm{IDENT}
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%                           (for backward compatibility)
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%
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% \rail@setcodes : guards special characters
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%
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% \rail@makeother{CHARACTER} : sets \catcode of CHARACTER to "other"
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%                              used inside a loop for \rail@setcodes
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%
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% \rail@nr : railroad diagram counter
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%
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% \ifrail@match : current \rail@i{NR}{TEXT} matches
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%
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% \rail@first : actions to be done first. read in .rao file,
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%               open .rai file if \@filesw true, undefine \rail@first.
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%               executed from \begin{rail}, \railoptions and \railterm.
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%
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% \rail@i{NR}{TEXT} : defines \rail@i@NR as TEXT. written to the .rai
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%                     file by \rail, read from the .rao file by
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%                     \rail@first
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%
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% \rail@t{IDENT} : tells Rail that IDENT is to be custom formatted,
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%                  written to the .rai file by \railterm.
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%
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% \rail@o{NR}{TEXT} : defines \rail@o@NR as TEXT, read from the .rao
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%                     file by \rail@first.
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%
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% \rail@p{OPTIONS} : pass options to rail, written to the .rai file by
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%                    \railoptions
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%
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% \rail@write{TEXT} : write TEXT to the .rai file
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%
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% \rail@warn : warn user for mismatching diagrams
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%
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% \rail@endwarn : either \relax or \rail@warn
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%
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% \ifrail@all : checked at the end of the document
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\def\rail@makeother#1{
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  \expandafter\catcode\expandafter`\csname\string #1\endcsname=12
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}
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\def\rail@setcodes{
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\let\par=\relax
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\let\\=\relax
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\expandafter\@tfor\expandafter\rail@symbol\expandafter:\expandafter=%
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  \the\rail@reserved
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\do{\expandafter\rail@makeother\rail@symbol}
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}
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\newcount\rail@nr
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\newif\ifrail@all
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\rail@alltrue
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\newif\ifrail@match
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\def\rail@first{
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\begingroup
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\makeatletter
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\rail@setcodes
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\InputIfFileExists{\jobname.rao}{}{\PackageInfo{rail}{No file \jobname.rao}}
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\makeatother
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\endgroup
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\if@filesw
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\newwrite\tf@rai
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\immediate\openout\tf@rai=\jobname.rai
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\fi
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\global\let\rail@first=\relax
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}
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\long\def\rail@body#1\end{
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{
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\newlinechar=`^^J
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\def\par{\string\par^^J}
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\rail@write{\string\rail@i{\number\rail@nr}{#1}}
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}
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\xdef\rail@i@{#1}
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\end
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}
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\newenvironment{rail}{
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\global\advance\rail@nr by 1
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\rail@first
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\begingroup
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\rail@setcodes
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\rail@body
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}{
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\endgroup
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\rail@matchtrue
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\@ifundefined{rail@o@\number\rail@nr}{\rail@matchfalse}{}
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\expandafter\ifx\csname rail@i@\number\rail@nr\endcsname\rail@i@
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\else
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\rail@matchfalse
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\fi
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\ifrail@match
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\csname rail@o@\number\rail@nr\endcsname
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\else
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\PackageWarning{rail}{Railroad diagram {\number\rail@nr} doesn't match}
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\global\let\rail@endwarn=\rail@warn
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\begin{list}{}{\rail@param}
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\rail@begin{1}{}
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\rail@setbox{\bfseries ???}
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\rail@oval
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\rail@end
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\end{list}
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\fi
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}
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\newcommand\railoptions[1]{
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\rail@first
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\rail@write{\string\rail@p{#1}}
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}
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\newcommand\railterm[1]{
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\rail@first
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\@for\rail@@:=#1\do{
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\rail@write{\string\rail@t{\rail@@}}
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}
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}
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\newcommand\railalias[2]{
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\expandafter\def\csname rail@t@#1\endcsname{#2}
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}
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\newcommand\railtoken[2]{\railalias{#1}{#2}\railterm{#1}}
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\long\def\rail@i#1#2{
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\expandafter\gdef\csname rail@i@#1\endcsname{#2}
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}
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\def\rail@o#1#2{
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\expandafter\gdef\csname rail@o@#1\endcsname{
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\begin{list}{}{\rail@param}
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#2
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\end{list}
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}
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}
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\def\rail@t#1{}
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\def\rail@p#1{}
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\long\def\rail@write#1{\@ifundefined{tf@rai}{}{\immediate\write\tf@rai{#1}}}
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\def\rail@warn{
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\PackageWarningNoLine{rail}{Railroad diagram(s) may have changed.
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                            Use 'rail' and rerun}
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}
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\let\rail@endwarn=\relax
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\AtEndDocument{\rail@endwarn}
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   400
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% index entry macro
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%
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% \rail@index{IDENT} : add index entry for IDENT
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\def\rail@index#1{
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\index{\rail@indexfont#1}
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}
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% railroad formatting primitives
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%
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% \rail@x : current x
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% \rail@y : current y
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% \rail@ex : current end x
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% \rail@sx : starting x for \rail@cr
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% \rail@rx : rightmost previous x for \rail@cr
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%
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% \rail@tmpa : temporary count
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% \rail@tmpb : temporary count
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% \rail@tmpc : temporary count
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%
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% \rail@put : put at (\rail@x,\rail@y)
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% \rail@vput : put vector at (\rail@x,\rail@y)
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%
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% \rail@eline : end line by drawing from \rail@ex to \rail@x
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%
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% \rail@vreline : end line by drawing a vector from \rail@x to \rail@ex
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%
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% \rail@vleline : end line by drawing a vector from \rail@ex to \rail@x
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%
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% \rail@sety{LEVEL} : set \rail@y to level LEVEL
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   431
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\newcount\rail@x
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   433
\newcount\rail@y
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\newcount\rail@ex
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\newcount\rail@sx
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\newcount\rail@rx
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\newcount\rail@tmpa
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\newcount\rail@tmpb
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\newcount\rail@tmpc
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\def\rail@put{\put(\number\rail@x,\number\rail@y)}
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\def\rail@vput{\put(\number\rail@ex,\number\rail@y)}
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\def\rail@eline{
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\rail@tmpb=\rail@x
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\advance\rail@tmpb by -\rail@ex
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\rail@put{\line(-1,0){\number\rail@tmpb}}
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}
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\def\rail@vreline{
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   453
\rail@tmpb=\rail@x
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   454
\advance\rail@tmpb by -\rail@ex
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   455
\rail@vput{\vector(1,0){\number\rail@tmpb}}
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}
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   457
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\def\rail@vleline{
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   459
\rail@tmpb=\rail@x
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   460
\advance\rail@tmpb by -\rail@ex
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   461
\rail@put{\vector(-1,0){\number\rail@tmpb}}
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   462
}
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   463
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\def\rail@sety#1{
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\rail@y=#1
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\multiply\rail@y by -\rail@boxsp
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   467
\advance\rail@y by -\rail@boxht
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}
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% \rail@begin{HEIGHT}{NAME} : begin a railroad diagram of height HEIGHT
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%
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% \rail@end : end a railroad diagram
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%
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% \rail@expand{IDENT} : expand IDENT
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\def\rail@begin#1#2{
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   477
\item
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\begin{minipage}[t]{\linewidth}
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\ifx\@empty#2\else
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{\rail@namefont \rail@expand{#2}}\\*[\railnamesep]
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\fi
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\unitlength=\railunit
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   483
\rail@tmpa=#1
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   484
\multiply\rail@tmpa by \rail@boxsp
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   485
\begin{picture}(0,\number\rail@tmpa)(0,-\number\rail@tmpa)
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   486
\rail@ex=0
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   487
\rail@rx=0
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   488
\rail@x=\rail@extra
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   489
\rail@sx=\rail@x
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   490
\rail@sety{0}
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   491
}
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   492
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   493
\def\rail@end{
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diff changeset
   494
\advance\rail@x by \rail@extra
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\rail@eline
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   496
\end{picture}
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   497
\end{minipage}
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}
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   499
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\def\rail@vend{
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   501
\advance\rail@x by \rail@extra
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diff changeset
   502
\rail@vreline
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diff changeset
   503
\end{picture}
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   504
\end{minipage}
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diff changeset
   505
}
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diff changeset
   506
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   507
\def\rail@expand#1{\@ifundefined{rail@t@#1}{#1}{\csname rail@t@#1\endcsname}}
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   508
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% \rail@token{TEXT}[ANNOT] : format token TEXT with annotation
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   510
% \rail@ltoken{TEXT}[ANNOT] : format token TEXT with annotation, arrow left
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   511
% \rail@rtoken{TEXT}[ANNOT] : format token TEXT with annotation, arrow right
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%
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   513
% \rail@ctoken{TEXT}[ANNOT] : format token TEXT centered with annotation
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   514
% \rail@lctoken{TEXT}[ANNOT] : format token TEXT centered with annotation, arrow left
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   515
% \rail@rctoken{TEXT}[ANNOT] : format token TEXT centered with annotation, arrow right
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   516
%
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   517
% \rail@nont{TEXT}[ANNOT] : format nonterminal TEXT with annotation
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diff changeset
   518
% \rail@lnont{TEXT}[ANNOT] : format nonterminal TEXT with annotation, arrow left
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diff changeset
   519
% \rail@rnont{TEXT}[ANNOT] : format nonterminal TEXT with annotation. arrow right
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%
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   521
% \rail@cnont{TEXT}[ANNOT] : format nonterminal TEXT centered with annotation
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   522
% \rail@lcnont{TEXT}[ANNOT] : format nonterminal TEXT centered with annotation,
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   523
%                             arrow left
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diff changeset
   524
% \rail@rcnont{TEXT}[ANNOT] : format nonterminal TEXT centered with annotation,
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   525
%                             arrow right
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%
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   527
% \rail@term{TEXT}[ANNOT] : format terminal TEXT with annotation
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   528
% \rail@lterm{TEXT}[ANNOT] : format terminal TEXT with annotation, arrow left
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diff changeset
   529
% \rail@rterm{TEXT}[ANNOT] : format terminal TEXT with annotation, arrow right
2658
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wenzelm
parents:
diff changeset
   530
%
3097
ae362c99a635 New version of rail.sty for LaTeX 2e
berghofe
parents: 2658
diff changeset
   531
% \rail@cterm{TEXT}[ANNOT] : format terminal TEXT centered with annotation
13044
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   532
% \rail@lcterm{TEXT}[ANNOT] : format terminal TEXT centered with annotation, arrow left
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   533
% \rail@rcterm{TEXT}[ANNOT] : format terminal TEXT centered with annotation,
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   534
%                             arrow right
2658
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   535
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   536
% \rail@annote[TEXT] : format TEXT as annotation
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   537
3097
ae362c99a635 New version of rail.sty for LaTeX 2e
berghofe
parents: 2658
diff changeset
   538
\def\rail@token#1[#2]{
ae362c99a635 New version of rail.sty for LaTeX 2e
berghofe
parents: 2658
diff changeset
   539
\rail@setbox{%
13044
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   540
{\rail@termfont \rail@expand{#1}}\ifx\@empty#2\else\ {\rail@annofont #2}\fi
2658
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   541
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   542
\rail@oval
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   543
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   544
13044
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   545
\def\rail@ltoken#1[#2]{
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   546
\rail@setbox{%
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   547
{\rail@termfont \rail@expand{#1}}\ifx\@empty#2\else\ {\rail@annofont #2}\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   548
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   549
\rail@vloval
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   550
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   551
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   552
\def\rail@rtoken#1[#2]{
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   553
\rail@setbox{%
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   554
{\rail@termfont \rail@expand{#1}}\ifx\@empty#2\else\ {\rail@annofont #2}\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   555
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   556
\rail@vroval
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   557
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   558
3097
ae362c99a635 New version of rail.sty for LaTeX 2e
berghofe
parents: 2658
diff changeset
   559
\def\rail@ctoken#1[#2]{
ae362c99a635 New version of rail.sty for LaTeX 2e
berghofe
parents: 2658
diff changeset
   560
\rail@setbox{%
13044
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   561
{\rail@termfont \rail@expand{#1}}\ifx\@empty#2\else\ {\rail@annofont #2}\fi
3097
ae362c99a635 New version of rail.sty for LaTeX 2e
berghofe
parents: 2658
diff changeset
   562
}
2658
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wenzelm
parents:
diff changeset
   563
\rail@coval
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   564
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   565
13044
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   566
\def\rail@lctoken#1[#2]{
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   567
\rail@setbox{%
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   568
{\rail@termfont \rail@expand{#1}}\ifx\@empty#2\else\ {\rail@annofont #2}\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   569
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   570
\rail@vlcoval
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   571
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   572
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   573
\def\rail@rctoken#1[#2]{
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   574
\rail@setbox{%
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   575
{\rail@termfont \rail@expand{#1}}\ifx\@empty#2\else\ {\rail@annofont #2}\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   576
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   577
\rail@vrcoval
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   578
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   579
3097
ae362c99a635 New version of rail.sty for LaTeX 2e
berghofe
parents: 2658
diff changeset
   580
\def\rail@nont#1[#2]{
ae362c99a635 New version of rail.sty for LaTeX 2e
berghofe
parents: 2658
diff changeset
   581
\rail@setbox{%
ae362c99a635 New version of rail.sty for LaTeX 2e
berghofe
parents: 2658
diff changeset
   582
{\rail@nontfont \rail@expand{#1}}\ifx\@empty#2\else\ {\rail@annofont #2}\fi
ae362c99a635 New version of rail.sty for LaTeX 2e
berghofe
parents: 2658
diff changeset
   583
}
2658
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wenzelm
parents:
diff changeset
   584
\rail@frame
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   585
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   586
13044
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   587
\def\rail@lnont#1[#2]{
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   588
\rail@setbox{%
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   589
{\rail@nontfont \rail@expand{#1}}\ifx\@empty#2\else\ {\rail@annofont #2}\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   590
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   591
\rail@vlframe
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   592
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   593
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   594
\def\rail@rnont#1[#2]{
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   595
\rail@setbox{%
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   596
{\rail@nontfont \rail@expand{#1}}\ifx\@empty#2\else\ {\rail@annofont #2}\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   597
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   598
\rail@vrframe
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   599
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   600
3097
ae362c99a635 New version of rail.sty for LaTeX 2e
berghofe
parents: 2658
diff changeset
   601
\def\rail@cnont#1[#2]{
ae362c99a635 New version of rail.sty for LaTeX 2e
berghofe
parents: 2658
diff changeset
   602
\rail@setbox{%
ae362c99a635 New version of rail.sty for LaTeX 2e
berghofe
parents: 2658
diff changeset
   603
{\rail@nontfont \rail@expand{#1}}\ifx\@empty#2\else\ {\rail@annofont #2}\fi
ae362c99a635 New version of rail.sty for LaTeX 2e
berghofe
parents: 2658
diff changeset
   604
}
2658
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wenzelm
parents:
diff changeset
   605
\rail@cframe
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   606
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   607
13044
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   608
\def\rail@lcnont#1[#2]{
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   609
\rail@setbox{%
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   610
{\rail@nontfont \rail@expand{#1}}\ifx\@empty#2\else\ {\rail@annofont #2}\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   611
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   612
\rail@vlcframe
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   613
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   614
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   615
\def\rail@rcnont#1[#2]{
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   616
\rail@setbox{%
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   617
{\rail@nontfont \rail@expand{#1}}\ifx\@empty#2\else\ {\rail@annofont #2}\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   618
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   619
\rail@vrcframe
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   620
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   621
3097
ae362c99a635 New version of rail.sty for LaTeX 2e
berghofe
parents: 2658
diff changeset
   622
\def\rail@term#1[#2]{
ae362c99a635 New version of rail.sty for LaTeX 2e
berghofe
parents: 2658
diff changeset
   623
\rail@setbox{%
ae362c99a635 New version of rail.sty for LaTeX 2e
berghofe
parents: 2658
diff changeset
   624
{\rail@termfont #1}\ifx\@empty#2\else\ {\rail@annofont #2}\fi
ae362c99a635 New version of rail.sty for LaTeX 2e
berghofe
parents: 2658
diff changeset
   625
}
2658
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   626
\rail@oval
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   627
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   628
13044
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   629
\def\rail@lterm#1[#2]{
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   630
\rail@setbox{%
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   631
{\rail@termfont #1}\ifx\@empty#2\else\ {\rail@annofont #2}\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   632
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   633
\rail@vloval
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   634
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   635
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   636
\def\rail@rterm#1[#2]{
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   637
\rail@setbox{%
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   638
{\rail@termfont #1}\ifx\@empty#2\else\ {\rail@annofont #2}\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   639
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   640
\rail@vroval
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   641
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   642
3097
ae362c99a635 New version of rail.sty for LaTeX 2e
berghofe
parents: 2658
diff changeset
   643
\def\rail@cterm#1[#2]{
ae362c99a635 New version of rail.sty for LaTeX 2e
berghofe
parents: 2658
diff changeset
   644
\rail@setbox{%
ae362c99a635 New version of rail.sty for LaTeX 2e
berghofe
parents: 2658
diff changeset
   645
{\rail@termfont #1}\ifx\@empty#2\else\ {\rail@annofont #2}\fi
ae362c99a635 New version of rail.sty for LaTeX 2e
berghofe
parents: 2658
diff changeset
   646
}
2658
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wenzelm
parents:
diff changeset
   647
\rail@coval
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   648
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   649
13044
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   650
\def\rail@lcterm#1[#2]{
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   651
\rail@setbox{%
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   652
{\rail@termfont #1}\ifx\@empty#2\else\ {\rail@annofont #2}\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   653
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   654
\rail@vlcoval
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   655
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   656
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   657
\def\rail@rcterm#1[#2]{
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   658
\rail@setbox{%
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   659
{\rail@termfont #1}\ifx\@empty#2\else\ {\rail@annofont #2}\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   660
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   661
\rail@vrcoval
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   662
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   663
2658
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wenzelm
parents:
diff changeset
   664
\def\rail@annote[#1]{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   665
\rail@setbox{\rail@annofont #1}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   666
\rail@text
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   667
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   668
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   669
% \rail@box : temporary box for \rail@oval and \rail@frame
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   670
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   671
% \rail@setbox{TEXT} : set \rail@box to TEXT, set \rail@tmpa to width
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   672
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   673
% \rail@oval : format \rail@box of width \rail@tmpa inside an oval
13044
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   674
% \rail@vloval : format \rail@box of width \rail@tmpa inside an oval, vector left
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   675
% \rail@vroval : format \rail@box of width \rail@tmpa inside an oval, vector right
2658
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parents:
diff changeset
   676
%
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wenzelm
parents:
diff changeset
   677
% \rail@coval : same as \rail@oval, but centered between \rail@x and
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wenzelm
parents:
diff changeset
   678
%               \rail@mx
13044
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   679
% \rail@vlcoval : same as \rail@oval, but centered between \rail@x and
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   680
%                 \rail@mx, vector left
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   681
% \rail@vrcoval : same as \rail@oval, but centered between \rail@x and
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   682
%                 \rail@mx, vector right
2658
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wenzelm
parents:
diff changeset
   683
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   684
% \rail@frame : format \rail@box of width \rail@tmpa inside a frame
13044
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   685
% \rail@vlframe : format \rail@box of width \rail@tmpa inside a frame, vector left
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   686
% \rail@vrframe : format \rail@box of width \rail@tmpa inside a frame, vector right
2658
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wenzelm
parents:
diff changeset
   687
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   688
% \rail@cframe : same as \rail@frame, but centered between \rail@x and
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   689
%                \rail@mx
13044
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   690
% \rail@vlcframe : same as \rail@frame, but centered between \rail@x and
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   691
%                  \rail@mx, vector left
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   692
% \rail@vrcframe : same as \rail@frame, but centered between \rail@x and
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   693
%                  \rail@mx, vector right
2658
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   694
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   695
% \rail@text : format \rail@box of width \rail@tmpa above the line
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   696
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   697
\newbox\rail@box
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   698
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   699
\def\rail@setbox#1{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   700
\setbox\rail@box\hbox{\strut#1}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   701
\rail@tmpa=\wd\rail@box
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   702
\divide\rail@tmpa by \railunit
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   703
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   704
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   705
\def\rail@oval{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   706
\advance\rail@x by \rail@boxlf
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   707
\rail@eline
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   708
\advance\rail@tmpa by \rail@ovalsp
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   709
\ifnum\rail@tmpa<\rail@boxht\rail@tmpa=\rail@boxht\fi
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wenzelm
parents:
diff changeset
   710
\rail@tmpb=\rail@tmpa
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   711
\divide\rail@tmpb by 2
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   712
\advance\rail@y by -\rail@boxhht
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   713
\rail@put{\makebox(\number\rail@tmpa,\number\rail@boxht){\box\rail@box}}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   714
\advance\rail@y by \rail@boxhht
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   715
\advance\rail@x by \rail@tmpb
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   716
\rail@put{\oval(\number\rail@tmpa,\number\rail@boxht)}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   717
\advance\rail@x by \rail@tmpb
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   718
\rail@ex=\rail@x
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   719
\advance\rail@x by \rail@boxrt
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   720
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   721
13044
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   722
\def\rail@vloval{
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   723
\advance\rail@x by \rail@boxlf
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   724
\rail@eline
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   725
\advance\rail@tmpa by \rail@ovalsp
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   726
\ifnum\rail@tmpa<\rail@boxht\rail@tmpa=\rail@boxht\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   727
\rail@tmpb=\rail@tmpa
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   728
\divide\rail@tmpb by 2
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   729
\advance\rail@y by -\rail@boxhht
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   730
\rail@put{\makebox(\number\rail@tmpa,\number\rail@boxht){\box\rail@box}}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   731
\advance\rail@y by \rail@boxhht
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   732
\advance\rail@x by \rail@tmpb
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   733
\rail@put{\oval(\number\rail@tmpa,\number\rail@boxht)}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   734
\advance\rail@x by \rail@tmpb
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   735
\rail@ex=\rail@x
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   736
\advance\rail@x by \rail@boxrt
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   737
\rail@vleline
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   738
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   739
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   740
\def\rail@vroval{
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   741
\advance\rail@x by \rail@boxlf
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   742
\rail@vreline
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   743
\advance\rail@tmpa by \rail@ovalsp
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   744
\ifnum\rail@tmpa<\rail@boxht\rail@tmpa=\rail@boxht\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   745
\rail@tmpb=\rail@tmpa
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   746
\divide\rail@tmpb by 2
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   747
\advance\rail@y by -\rail@boxhht
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   748
\rail@put{\makebox(\number\rail@tmpa,\number\rail@boxht){\box\rail@box}}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   749
\advance\rail@y by \rail@boxhht
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   750
\advance\rail@x by \rail@tmpb
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   751
\rail@put{\oval(\number\rail@tmpa,\number\rail@boxht)}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   752
\advance\rail@x by \rail@tmpb
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   753
\rail@ex=\rail@x
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   754
\advance\rail@x by \rail@boxrt
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   755
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   756
2658
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   757
\def\rail@coval{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   758
\rail@tmpb=\rail@tmpa
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   759
\advance\rail@tmpb by \rail@ovalsp
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   760
\ifnum\rail@tmpb<\rail@boxht\rail@tmpb=\rail@boxht\fi
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   761
\advance\rail@tmpb by \rail@boxlf
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   762
\advance\rail@tmpb by \rail@boxrt
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   763
\rail@tmpc=\rail@mx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   764
\advance\rail@tmpc by -\rail@x
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   765
\advance\rail@tmpc by -\rail@tmpb
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   766
\divide\rail@tmpc by 2
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   767
\ifnum\rail@tmpc>0
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   768
\advance\rail@x by \rail@tmpc
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   769
\fi
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   770
\rail@oval
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   771
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   772
13044
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   773
\def\rail@vlcoval{
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   774
\rail@tmpb=\rail@tmpa
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   775
\advance\rail@tmpb by \rail@ovalsp
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   776
\ifnum\rail@tmpb<\rail@boxht\rail@tmpb=\rail@boxht\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   777
\advance\rail@tmpb by \rail@boxlf
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   778
\advance\rail@tmpb by \rail@boxrt
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   779
\rail@tmpc=\rail@mx
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   780
\advance\rail@tmpc by -\rail@x
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   781
\advance\rail@tmpc by -\rail@tmpb
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   782
\divide\rail@tmpc by 2
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   783
\ifnum\rail@tmpc>0
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   784
\advance\rail@x by \rail@tmpc
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   785
\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   786
\rail@vloval
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   787
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   788
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   789
\def\rail@vrcoval{
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   790
\rail@tmpb=\rail@tmpa
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   791
\advance\rail@tmpb by \rail@ovalsp
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   792
\ifnum\rail@tmpb<\rail@boxht\rail@tmpb=\rail@boxht\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   793
\advance\rail@tmpb by \rail@boxlf
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   794
\advance\rail@tmpb by \rail@boxrt
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   795
\rail@tmpc=\rail@mx
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   796
\advance\rail@tmpc by -\rail@x
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   797
\advance\rail@tmpc by -\rail@tmpb
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   798
\divide\rail@tmpc by 2
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   799
\ifnum\rail@tmpc>0
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   800
\advance\rail@x by \rail@tmpc
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   801
\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   802
\rail@vroval
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   803
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   804
2658
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   805
\def\rail@frame{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   806
\advance\rail@x by \rail@boxlf
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   807
\rail@eline
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   808
\advance\rail@tmpa by \rail@framesp
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   809
\ifnum\rail@tmpa<\rail@boxht\rail@tmpa=\rail@boxht\fi
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   810
\advance\rail@y by -\rail@boxhht
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   811
\rail@put{\framebox(\number\rail@tmpa,\number\rail@boxht){\box\rail@box}}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   812
\advance\rail@y by \rail@boxhht
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   813
\advance\rail@x by \rail@tmpa
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   814
\rail@ex=\rail@x
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   815
\advance\rail@x by \rail@boxrt
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   816
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   817
13044
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   818
\def\rail@vlframe{
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   819
\advance\rail@x by \rail@boxlf
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   820
\rail@eline
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   821
\advance\rail@tmpa by \rail@framesp
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   822
\ifnum\rail@tmpa<\rail@boxht\rail@tmpa=\rail@boxht\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   823
\advance\rail@y by -\rail@boxhht
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   824
\rail@put{\framebox(\number\rail@tmpa,\number\rail@boxht){\box\rail@box}}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   825
\advance\rail@y by \rail@boxhht
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   826
\advance\rail@x by \rail@tmpa
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   827
\rail@ex=\rail@x
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   828
\advance\rail@x by \rail@boxrt
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   829
\rail@vleline
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   830
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   831
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   832
\def\rail@vrframe{
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   833
\advance\rail@x by \rail@boxlf
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   834
\rail@vreline
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   835
\advance\rail@tmpa by \rail@framesp
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   836
\ifnum\rail@tmpa<\rail@boxht\rail@tmpa=\rail@boxht\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   837
\advance\rail@y by -\rail@boxhht
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   838
\rail@put{\framebox(\number\rail@tmpa,\number\rail@boxht){\box\rail@box}}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   839
\advance\rail@y by \rail@boxhht
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   840
\advance\rail@x by \rail@tmpa
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   841
\rail@ex=\rail@x
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   842
\advance\rail@x by \rail@boxrt
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   843
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   844
2658
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   845
\def\rail@cframe{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   846
\rail@tmpb=\rail@tmpa
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   847
\advance\rail@tmpb by \rail@framesp
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   848
\ifnum\rail@tmpb<\rail@boxht\rail@tmpb=\rail@boxht\fi
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   849
\advance\rail@tmpb by \rail@boxlf
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   850
\advance\rail@tmpb by \rail@boxrt
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   851
\rail@tmpc=\rail@mx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   852
\advance\rail@tmpc by -\rail@x
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   853
\advance\rail@tmpc by -\rail@tmpb
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   854
\divide\rail@tmpc by 2
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   855
\ifnum\rail@tmpc>0
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   856
\advance\rail@x by \rail@tmpc
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   857
\fi
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   858
\rail@frame
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   859
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   860
13044
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   861
\def\rail@vlcframe{
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   862
\rail@tmpb=\rail@tmpa
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   863
\advance\rail@tmpb by \rail@framesp
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   864
\ifnum\rail@tmpb<\rail@boxht\rail@tmpb=\rail@boxht\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   865
\advance\rail@tmpb by \rail@boxlf
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   866
\advance\rail@tmpb by \rail@boxrt
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   867
\rail@tmpc=\rail@mx
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   868
\advance\rail@tmpc by -\rail@x
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   869
\advance\rail@tmpc by -\rail@tmpb
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   870
\divide\rail@tmpc by 2
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   871
\ifnum\rail@tmpc>0
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   872
\advance\rail@x by \rail@tmpc
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   873
\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   874
\rail@vlframe
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   875
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   876
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   877
\def\rail@vrcframe{
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   878
\rail@tmpb=\rail@tmpa
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   879
\advance\rail@tmpb by \rail@framesp
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   880
\ifnum\rail@tmpb<\rail@boxht\rail@tmpb=\rail@boxht\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   881
\advance\rail@tmpb by \rail@boxlf
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   882
\advance\rail@tmpb by \rail@boxrt
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   883
\rail@tmpc=\rail@mx
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   884
\advance\rail@tmpc by -\rail@x
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   885
\advance\rail@tmpc by -\rail@tmpb
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   886
\divide\rail@tmpc by 2
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   887
\ifnum\rail@tmpc>0
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   888
\advance\rail@x by \rail@tmpc
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   889
\fi
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   890
\rail@vrframe
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   891
}
c049910774cb for rail v 1.2
paulson
parents: 8591
diff changeset
   892
2658
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   893
\def\rail@text{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   894
\advance\rail@x by \rail@textlf
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   895
\advance\rail@y by \rail@textup
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   896
\rail@put{\box\rail@box}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   897
\advance\rail@y by -\rail@textup
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   898
\advance\rail@x by \rail@tmpa
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   899
\advance\rail@x by \rail@textrt
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   900
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   901
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   902
% alternatives
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   903
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   904
% \rail@jx \rail@jy : current join point
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   905
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   906
% \rail@gx \rail@gy \rail@gex \rail@grx : global versions of \rail@x etc,
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   907
%                                         to pass values over group closings
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   908
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   909
% \rail@mx : maximum x so far
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   910
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   911
% \rail@sy : starting \rail@y for alternatives
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   912
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   913
% \rail@jput : put at (\rail@jx,\rail@jy)
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   914
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   915
% \rail@joval[PART] : put \oval[PART] with adjust
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   916
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   917
\newcount\rail@jx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   918
\newcount\rail@jy
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   919
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   920
\newcount\rail@gx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   921
\newcount\rail@gy
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   922
\newcount\rail@gex
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   923
\newcount\rail@grx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   924
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   925
\newcount\rail@sy
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   926
\newcount\rail@mx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   927
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   928
\def\rail@jput{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   929
\put(\number\rail@jx,\number\rail@jy)
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   930
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   931
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   932
\def\rail@joval[#1]{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   933
\advance\rail@jx by \rail@joinadj
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   934
\rail@jput{\oval(\number\rail@joinsz,\number\rail@joinsz)[#1]}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   935
\advance\rail@jx by -\rail@joinadj
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   936
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   937
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   938
% \rail@barsplit : incoming split for '|'
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   939
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   940
% \rail@plussplit : incoming split for '+'
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   941
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   942
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   943
\def\rail@barsplit{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   944
\advance\rail@jy by -\rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   945
\rail@joval[tr]
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   946
\advance\rail@jx by \rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   947
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   948
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   949
\def\rail@plussplit{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   950
\advance\rail@jy by -\rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   951
\advance\rail@jx by \rail@joinsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   952
\rail@joval[tl]
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   953
\advance\rail@jx by -\rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   954
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   955
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   956
% \rail@alt{SPLIT} : start alternatives with incoming split SPLIT
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   957
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   958
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   959
\def\rail@alt#1{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   960
\rail@sy=\rail@y
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   961
\rail@jx=\rail@x
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   962
\rail@jy=\rail@y
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   963
\advance\rail@x by \rail@joinsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   964
\rail@mx=0
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   965
\let\rail@list=\@empty
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   966
\let\rail@comma=\@empty
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   967
\let\rail@split=#1
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   968
\begingroup
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   969
\rail@sx=\rail@x
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   970
\rail@rx=0
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   971
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   972
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   973
% \rail@nextalt{FIX}{Y} : start next alternative at vertical position Y
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   974
%                         and fix-up FIX
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   975
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   976
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   977
\def\rail@nextalt#1#2{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   978
\global\rail@gx=\rail@x
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   979
\global\rail@gy=\rail@y
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   980
\global\rail@gex=\rail@ex
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   981
\global\rail@grx=\rail@rx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   982
\endgroup
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   983
#1
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   984
\ifnum\rail@gx>\rail@mx\rail@mx=\rail@gx\fi
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   985
\ifnum\rail@grx>\rail@mx\rail@mx=\rail@grx\fi
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   986
\edef\rail@list{\rail@list\rail@comma\number\rail@gex:\number\rail@gy}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   987
\def\rail@comma{,}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   988
\rail@split
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   989
\let\rail@split=\@empty
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   990
\rail@sety{#2}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   991
\rail@tmpa=\rail@jy
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   992
\advance\rail@tmpa by -\rail@y
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   993
\advance\rail@tmpa by -\rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   994
\rail@jput{\line(0,-1){\number\rail@tmpa}}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   995
\rail@jy=\rail@y
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   996
\advance\rail@jy by \rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   997
\advance\rail@jx by \rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   998
\rail@joval[bl]
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
   999
\advance\rail@jx by -\rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1000
\rail@ex=\rail@x
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1001
\begingroup
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1002
\rail@sx=\rail@x
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1003
\rail@rx=0
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1004
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1005
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1006
% \rail@barjoin : outgoing join for first '|' alternative
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1007
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1008
% \rail@plusjoin : outgoing join for first '+' alternative
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1009
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1010
% \rail@altjoin : join for subsequent alternative
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1011
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1012
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1013
\def\rail@barjoin{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1014
\ifnum\rail@y<\rail@sy
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1015
\global\rail@gex=\rail@jx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1016
\else
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1017
\global\rail@gex=\rail@ex
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1018
\fi
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1019
\advance\rail@jy by -\rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1020
\rail@joval[tl]
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1021
\advance\rail@jx by -\rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1022
\ifnum\rail@y<\rail@sy
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1023
\rail@altjoin
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1024
\fi
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1025
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1026
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1027
\def\rail@plusjoin{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1028
\global\rail@gex=\rail@ex
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1029
\advance\rail@jy by -\rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1030
\advance\rail@jx by -\rail@joinsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1031
\rail@joval[tr]
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1032
\advance\rail@jx by \rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1033
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1034
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1035
\def\rail@altjoin{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1036
\rail@eline
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1037
\rail@tmpa=\rail@jy
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1038
\advance\rail@tmpa by -\rail@y
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1039
\advance\rail@tmpa by -\rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1040
\rail@jput{\line(0,-1){\number\rail@tmpa}}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1041
\rail@jy=\rail@y
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1042
\advance\rail@jy by \rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1043
\advance\rail@jx by -\rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1044
\rail@joval[br]
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1045
\advance\rail@jx by \rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1046
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1047
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1048
% \rail@eltsplit EX:Y; : split EX:Y into \rail@ex \rail@y
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1049
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1050
% \rail@endalt{JOIN} : end alternatives with outgoing join JOIN
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1051
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1052
\def\rail@eltsplit#1:#2;{\rail@ex=#1\rail@y=#2}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1053
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1054
\def\rail@endalt#1{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1055
\global\rail@gx=\rail@x
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1056
\global\rail@gy=\rail@y
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1057
\global\rail@gex=\rail@ex
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1058
\global\rail@grx=\rail@rx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1059
\endgroup
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1060
\ifnum\rail@gx>\rail@mx\rail@mx=\rail@gx\fi
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1061
\ifnum\rail@grx>\rail@mx\rail@mx=\rail@grx\fi
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1062
\edef\rail@list{\rail@list\rail@comma\number\rail@gex:\number\rail@gy}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1063
\rail@x=\rail@mx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1064
\rail@jx=\rail@x
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1065
\rail@jy=\rail@sy
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1066
\advance\rail@jx by \rail@joinsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1067
\let\rail@join=#1
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1068
\@for\rail@elt:=\rail@list\do{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1069
\expandafter\rail@eltsplit\rail@elt;
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1070
\rail@join
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1071
\let\rail@join=\rail@altjoin
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1072
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1073
\rail@x=\rail@mx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1074
\rail@y=\rail@sy
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1075
\rail@ex=\rail@gex
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1076
\advance\rail@x by \rail@joinsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1077
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1078
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1079
% \rail@bar : start '|' alternatives
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1080
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1081
% \rail@nextbar : next '|' alternative
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1082
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1083
% \rail@endbar : end '|' alternatives
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1084
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1085
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1086
\def\rail@bar{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1087
\rail@alt\rail@barsplit
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1088
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1089
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1090
\def\rail@nextbar{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1091
\rail@nextalt\relax
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1092
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1093
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1094
\def\rail@endbar{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1095
\rail@endalt\rail@barjoin
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1096
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1097
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1098
% \rail@plus : start '+' alternatives
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1099
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1100
% \rail@nextplus: next '+' alternative
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1101
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1102
% \rail@endplus : end '+' alternatives
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1103
%
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1104
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1105
\def\rail@plus{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1106
\rail@alt\rail@plussplit
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1107
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1108
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1109
\def\rail@nextplus{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1110
\rail@nextalt\rail@fixplus
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1111
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1112
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1113
\def\rail@fixplus{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1114
\ifnum\rail@gy<\rail@sy
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1115
\begingroup
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1116
\rail@x=\rail@gx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1117
\rail@y=\rail@gy
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1118
\rail@ex=\rail@gex
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1119
\rail@rx=\rail@grx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1120
\ifnum\rail@x<\rail@rx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1121
\rail@x=\rail@rx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1122
\fi
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1123
\rail@eline
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1124
\rail@jx=\rail@x
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1125
\rail@jy=\rail@y
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1126
\advance\rail@jy by \rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1127
\rail@joval[br]
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1128
\advance\rail@jx by \rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1129
\rail@tmpa=\rail@sy
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1130
\advance\rail@tmpa by -\rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1131
\advance\rail@tmpa by -\rail@jy
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1132
\rail@jput{\line(0,1){\number\rail@tmpa}}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1133
\rail@jy=\rail@sy
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1134
\advance\rail@jy by -\rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1135
\advance\rail@jx by \rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1136
\rail@joval[tl]
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1137
\advance\rail@jy by \rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1138
\global\rail@gx=\rail@jx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1139
\global\rail@gy=\rail@jy
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1140
\global\rail@gex=\rail@gx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1141
\global\rail@grx=\rail@rx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1142
\endgroup
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1143
\fi
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1144
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1145
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1146
\def\rail@endplus{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1147
\rail@endalt\rail@plusjoin
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1148
}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1149
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1150
% \rail@cr{Y} : carriage return to vertical position Y
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1151
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1152
\def\rail@cr#1{
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1153
\rail@tmpa=\rail@sx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1154
\advance\rail@tmpa by \rail@joinsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1155
\ifnum\rail@x<\rail@tmpa\rail@x=\rail@tmpa\fi
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1156
\rail@eline
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1157
\rail@jx=\rail@x
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1158
\rail@jy=\rail@y
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1159
\advance\rail@x by \rail@joinsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1160
\ifnum\rail@x>\rail@rx\rail@rx=\rail@x\fi
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1161
\advance\rail@jy by -\rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1162
\rail@joval[tr]
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1163
\advance\rail@jx by \rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1164
\rail@sety{#1}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1165
\rail@tmpa=\rail@jy
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1166
\advance\rail@tmpa by -\rail@y
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1167
\advance\rail@tmpa by -\rail@boxsp
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1168
\advance\rail@tmpa by -\rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1169
\rail@jput{\line(0,-1){\number\rail@tmpa}}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1170
\rail@jy=\rail@y
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1171
\advance\rail@jy by \rail@boxsp
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1172
\advance\rail@jy by \rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1173
\advance\rail@jx by -\rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1174
\rail@joval[br]
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1175
\advance\rail@jy by -\rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1176
\rail@tmpa=\rail@jx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1177
\advance\rail@tmpa by -\rail@sx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1178
\advance\rail@tmpa by -\rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1179
\rail@jput{\line(-1,0){\number\rail@tmpa}}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1180
\rail@jx=\rail@sx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1181
\advance\rail@jx by \rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1182
\advance\rail@jy by -\rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1183
\rail@joval[tl]
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1184
\advance\rail@jx by -\rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1185
\rail@tmpa=\rail@boxsp
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1186
\advance\rail@tmpa by -\rail@joinsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1187
\rail@jput{\line(0,-1){\number\rail@tmpa}}
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1188
\advance\rail@jy by -\rail@tmpa
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1189
\advance\rail@jx by \rail@joinhsz
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1190
\rail@joval[bl]
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1191
\rail@x=\rail@jx
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1192
\rail@ex=\rail@x
13ba951a4572 added this file;
wenzelm
parents:
diff changeset
  1193
}