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+%%
+%% Package: spectralsequences v1.2.2
+%% Author: Hood Chatham
+%% Email: hood@mit.edu
+%% Date: 2019-02-18
+%% License: Latex Project Public License
+%%
+%% File: sseqmain.code.tex
+%%
+%% Defines the main environments and commands
+%%
+
+
+%%%%%%%
+%%%
+%%% Environment definitions
+%%%
+%%%%%%%
+\def\sseq@usesavedpaths{%
+ \sseq@savedpaths
+ \sseq@clearchangestyles
+ \sseq@tempsavedpaths
+ \gdef\sseq@tempsavedpaths{}%
+}
+
+\sseq@addtostorelist\sseq@savedbackgroundpaths{}
+\sseq@addtostorelist\sseq@restorestyles{}
+
+\def\sseq@page{\protect\sseq@thepage}
+
+
+\def\sseqdata{\@ifnextchar[{\sseqdata@}{\sseqdata@[]}}%}
+
+\def\sseqdata@[#1]{%
+ \edef\sseq@restorefont{\font@name}%
+ \selectfont\nullfont % Avoid space hazards!
+
+ \def\par{}%
+%
+ \ifx\pgfpictureid\@undefined\else %Uh-oh, we're inside tikz.
+ \sseq@error@n{env-inside-tikz}{sseqdata}\@xp\sseq@breakdataenv
+ \fi
+ \ifsseq@inprogress % Uh-oh, we're already in a sseq environment.
+ \sseq@error@n{env-inside-sseq}{sseqdata}\@xp\sseq@breakdataenv
+ \fi
+ \sseq@inprogresstrue
+ \def\sseq@sseqsetdirectory{/sseqpages}
+ \sseq@keepchangestrue
+ \sseq@storelist@setdefaults
+ \let\sseq@xtickfn\@firstofone\let\sseq@ytickfn\@firstofone % These are default functions, which addtostorelist can't handle.
+%
+ \ifx\sseq@xmin@default\sseq@infinity
+ \let\sseq@xminmax\sseq@xminmax@active
+ \fi
+ \ifx\sseq@ymin@default\sseq@infinity
+ \let\sseq@yminmax\sseq@yminmax@active
+ \fi
+ \ifsseq@mathnodes
+ \let\sseq@maybemathswitch=$\@gobble$
+ \fi
+%
+ % copy commands into the user namespace.
+ \sseq@installmacros
+ \sseq@installmsghooks
+ \sseq@install@xparse@Uarggrabber
+ % The behavior of xmax and xmin is very particular, so it's best not to mess with them.
+ % In particular, they shouldn't be expanded until printing no matter what, but we don't want
+ % \pgfmathparse to barf on them. \pgfmathparse really doesn't like engine protected macros,
+ % so in no case should this be engine protected. (Wish we could test an argument for the presence
+ % of engine protected macros). If we try to do that, \sseq@ifpgfmathexpr will break in
+ % \sseq@tikzprimitives@coords@notaclass@handle@.
+ \def\xmin{\protect\sseq@xmin}\def\xmax{\protect\sseq@xmax}
+ \def\ymin{\protect\sseq@ymin}\def\ymax{\protect\sseq@ymax}
+%
+ \sseq@modtikzcommands % Defer evaluation of tikz primitives
+ \sseq@patchfor % patch \foreach to work with deferred macros
+ \pgfkeys{/handlers/first char syntax/the character "/.initial=\sseq@handlequote} % install quotes parsing
+%
+%
+ \pgfqkeys{/sseqpages/global/name only}{#1}
+ \@ifundefined{sseq@thename}{\sseq@error{env-data-no-name}\sseq@breakdataenv}{}
+ \sseq@obj@ifundef{exists}{
+ \sseq@obj@gdef{exists}{}
+ \pgfqkeys{/sseqpages/global}{{\sseq@thename} options/.code={}}
+ }{
+ \ifsseq@updateexisting\else
+ \sseq@error@x{env-data-already-exist}{\sseq@thename}% this could be a warning
+ \fi
+ \sseq@restorestyles
+ \sseq@getcmds
+
+ }
+ \sseq@setsavedpaths{standard}
+%
+ % the default option handler for /sseqpages/global adds to \sseq@currentoptionpath options
+ \let\sseq@currentoptionpath\sseq@thename
+ \pgfqkeys{/sseqpages/global}{#1}
+ \ifx\sseq@targetx\pgfutil@empty\else
+ \sseq@hasdegreetrue
+ \fi
+ \sseq@eval{
+ \global\let\@xp\@nx\csname pgfk@/sseqpages/global/{\sseq@currentoptionpath} options/.@cmd\endcsname
+ \@xp\@nx\csname pgfk@/sseqpages/global/{\sseq@currentoptionpath} options/.@cmd\endcsname
+ }
+ \sseq@savedpaths@xadd{\@nx\sseq@style@object{\sseq@stylelist}}
+ \sseq@savedpaths@add{\begingroup} % prevent some of the two-pass user macros horrors
+ \let\sseq@error@setup\sseq@error@setup@withinfo
+}
+
+% Just store all the settings
+\def\endsseqdata{%
+ \let\sseq@error@setup\sseq@error@setup@noinfo
+ \sseq@checkend{sseqdata}%
+ \sseq@savedpaths@add{\endgroup} % prevent some of the two-pass user macros horrors
+ \xdef\sseq@restorestyles{\sseq@stylelist}%
+ \sseq@storecmds
+ \ignorespacesafterend
+ \sseq@breakpoint
+}
+
+\def\sseqpage{\@ifnextchar[{\sseqpage@}{\sseqpage@[]}} %]
+
+\def\sseqpage@[#1]{%
+ \edef\sseq@restorefont{\font@name}%
+ \selectfont\nullfont % Avoid space hazards!
+ \def\par{}%
+%
+ \ifx\pgfpictureid\@undefined\else %Uh-oh, we're inside tikz.
+ \sseq@error@n{env-inside-tikz}{sseqpage}\@xp\sseq@breakpageenv
+ \fi
+ \ifsseq@inprogress % Uh-oh, we're already in a sseq environment. This is not good.
+ \sseq@error@n{env-inside-sseq}{sseqpage}\@xp\sseq@breakpageenv
+ \fi
+ \sseq@inprogresstrue
+ \sseq@ispageenvtrue
+ \def\sseq@sseqsetdirectory{/sseqpages}
+%
+% \ifsseq@mathnodes
+% \let\sseq@maybemathswitch=$\@gobble$
+% \fi
+%
+ % Copy commands into user namespace
+ \sseq@installmacros
+ \sseq@installmsghooks
+ \sseq@install@xparse@Uarggrabber
+ \def\xmin{\protect\sseq@xmin}\def\xmax{\protect\sseq@xmax}
+ \def\ymin{\protect\sseq@ymin}\def\ymax{\protect\sseq@ymax}
+ \sseq@modtikzcommands % Redefine tikz primitives to store themselves in the appropriate place
+ \sseq@patchfor % Change foreach to record it's variable values in the appropriate places
+ \pgfkeys{/handlers/first char syntax/the character "/.initial=\sseq@handlequote}% install quotes parsing
+%
+ \gdef\sseq@pagecleanup{}% For undoing local option settings
+%
+ \def\sseq@thepage{0}% page defaults to 0
+ \sseq@thepagecount=\z@
+ \pgfqkeys{/sseqpages/global/name only}{#1}% Get the name
+ \sseq@tempiftrue
+ \ifsseq@hasname
+ \sseq@obj@ifundef{exists}{
+ \sseq@error@x{env-page-not-exist}{\sseq@thename} % This could be a warning
+ \sseq@obj@gdef{exists}{}
+ \let\sseq@currentoptionpath\sseq@thename
+ \pgfqkeys{/sseqpages/global}{{\sseq@thename} options/.code={}}
+ \sseq@keepchangestrue
+ \sseq@keepglobaloptionstrue
+ \sseq@setsavedpaths{standard}
+ }{
+ \sseq@restorestyles
+ \sseq@getcmds
+ \ifsseq@keepchanges
+ \sseq@setsavedpaths{standard}
+ \else
+ \sseq@setsavedpaths{temporary}
+ \fi
+ \sseq@tempiffalse
+ \def\sseq@currentoptionpath{this page}
+ \pgfqkeys{/sseqpages/global}{{this page} options/.code={},#1}
+ }
+ \else
+ \edef\sseq@thename{temp@sseq@number@\the\sseq@anonsseqcount}
+ \global\advance\sseq@anonsseqcount1
+ \sseq@setsavedpaths{temporary}
+ \fi
+ \ifsseq@tempif % Either the spectral sequence has no name, or it has a name but no such existed.
+ \sseq@storelist@setdefaults
+ \sseq@savedpaths@xadd{\sseq@stylelist}
+ \let\sseq@currentoptionpath\sseq@thename
+ \pgfqkeys{/sseqpages/global}{{\sseq@thename} options/.code={},{this page} options/.code={},#1}
+ \sseq@eval{
+ \global\let\@xp\@nx\csname pgfk@/sseqpages/global/{\sseq@currentoptionpath} options/.@cmd\endcsname
+ \@xp\@nx\csname pgfk@/sseqpages/global/{\sseq@currentoptionpath} options/.@cmd\endcsname
+ }
+ \fi
+%
+ \ifsseq@specifiedxrange
+ \let\sseq@xminmax\@gobbletwo
+ \else
+ \let\sseq@xminmax\sseq@xminmax@active
+ \fi
+ \ifsseq@specifiedyrange
+ \let\sseq@yminmax\@gobbletwo
+ \else
+ \let\sseq@yminmax\sseq@yminmax@active
+ \fi
+%
+ \sseq@savedpaths@xadd{\sseq@stylelist}
+ \sseq@savedpaths@add{\begingroup} % prevent some of the two-pass user macros horrors
+ \ifx\sseq@targetx\pgfutil@empty\else
+ \sseq@hasdegreetrue
+ \fi
+ \let\sseq@error@setup\sseq@error@setup@withinfo
+}
+
+% Here we do all of the work to actually print the page
+\def\endsseqpage{
+ \let\sseq@error@setup\sseq@error@setup@noinfo
+ \sseq@checkend{sseqpage}
+ \sseq@savedpaths@add{\endgroup} % prevent some of the two-pass user macros horrors
+%
+ \sseq@xscalecm=\sseq@xscale cm
+ \sseq@yscalecm=\sseq@yscale cm
+%
+% check that range is okay
+%
+ \ifx\sseq@xmin\sseq@infinity\sseq@error{no-range}\def\sseq@xmin{0}\def\sseq@xmax{0}\@xp\sseq@break\fi % could be warning
+ \ifx\sseq@ymin\sseq@infinity\sseq@error{no-range}\def\sseq@ymin{0}\def\sseq@ymax{0}\@xp\sseq@break\fi
+ \let\xmin\sseq@xmin
+ \let\xmax\sseq@xmax
+ \let\ymin\sseq@ymin
+ \let\ymax\sseq@ymax
+%
+ \ifnum\numexpr\sseq@xmax-\sseq@xmin\relax>\numexpr\maxdimen/\dimexpr1pt\relax-1\relax
+ \sseq@error@xx{range-super-overflow}{x}
+ {from \sseq@xmin\space to \sseq@xmax\space (xmax - xmin = \the\numexpr\sseq@xmax-\sseq@xmin)}
+ \@xp\sseq@break
+ \fi
+ \ifnum\numexpr\sseq@ymax-\sseq@ymin\relax>\numexpr\maxdimen/\dimexpr1pt\relax-1\relax
+ \sseq@error@xx{range-super-overflow}{y}
+ {from \sseq@ymin\space to \sseq@ymax\space (ymax - ymin = \the\numexpr\sseq@ymax-\sseq@ymin)}
+ \@xp\sseq@break
+ \fi
+%
+ \sseq@tempdimen = \dimexpr \textwidth -\sseq@clip@padding@right - \sseq@xaxis@end@extend - \sseq@xaxis@start@extend - \sseq@yaxisgap \relax
+ \sseq@tempcount = \numexpr \sseq@tempdimen /\sseq@xscalecm \relax
+ \ifnum \numexpr\sseq@xmax-\sseq@xmin + 1 > \sseq@tempcount
+ \pgfmathparse{\sseq@tempdimen/1cm/(\sseq@xmax-\sseq@xmin+1)}
+ \sseq@error@xxxx{range-overflow}{x}
+ {from \sseq@xmin\space to \sseq@xmax\space (xmax - xmin = \the\numexpr\sseq@xmax-\sseq@xmin)}
+ {\the\sseq@tempcount}% max x range
+ {\pgfmathresult}% max xscale
+ %\@xp\sseq@break
+ \fi
+%
+ \sseq@tempdimen = \dimexpr \textheight - \sseq@clip@padding@top - \sseq@yaxis@end@extend - \sseq@yaxis@start@extend - \sseq@xaxisgap \relax
+ \sseq@tempcount = \numexpr \sseq@tempdimen /\sseq@yscalecm \relax
+ \ifnum \numexpr\sseq@ymax-\sseq@ymin +1 > \sseq@tempcount
+ \pgfmathparse{\sseq@tempdimen/1cm/(\sseq@ymax-\sseq@ymin+1)}
+ \sseq@error@xxxx{range-overflow}{y}
+ {from \sseq@ymin\space to \sseq@ymax\space (ymax - ymin = \the\numexpr\sseq@ymax-\sseq@ymin)}
+ {\the\sseq@tempcount}% max x range
+ {\pgfmathresult}% max xscale
+ \@xp\sseq@break
+ \fi
+%
+ % Really this could be anything between -\sseq@xmin and -\sseq@xmax and it wouldn't matter. We'll split the difference.
+ \sseq@xoffset=\numexpr\sseq@intdivceiling{\numexpr-\sseq@xmin-\sseq@xmax\relax}{\numexpr4*\sseq@xgridstep\relax}*(2*\sseq@xgridstep)\relax
+ \sseq@yoffset=\numexpr\sseq@intdivceiling{\numexpr-\sseq@ymin-\sseq@ymax\relax}{\numexpr4*\sseq@ygridstep\relax}*(2*\sseq@ygridstep)\relax
+%
+%
+ \tikzset{
+ z=0pt,
+ every path/.style={},
+ every node/.style={}
+ }
+ \let\errmessage\sseq@errmessage@std
+ \sseq@setlayoutparameters
+ \begin{tikzpicture}[/sseqpages/global/{default} options,\ifsseq@hasname/sseqpages/global/{\sseq@thename} options\fi,/sseqpages/global/{this page} options]%
+ \sseq@sseqstyle@globalpart
+ \sseq@globaldetonetransform
+ \sseq@globalscaletransform
+%
+ \let\sseq@transform\sseq@error@illegaltransform % Disallow most coordinate transforms
+ \let\sseq@shifttransform\sseq@checkshifttransform % Allow shifts as long as they are by integers and have no units.
+%
+ \sseq@setupclip
+%
+ \sseq@patchtikzcoords
+%
+ \pgfonlayer{background}%
+ % Axes labels only occur once per page, so the cost of typesetting them with tikz doesn't matter ... THANK GOD
+ \ifx\sseq@title\pgfutil@empty\else
+ \ifsseq@drawtitle
+ \sseq@eval{\@nx\path (0,-\sseq@yoffset) node[
+ /sseqpages/global/every title,
+ above=\sseq@topclippadding+5pt
+ ] {\unexpanded\expandafter{\sseq@title}};
+ }
+ \fi
+ \fi
+ % Don't touch the shifts -- they are very persnickety.
+ \ifx\sseq@xaxislabel\pgfutil@empty\else\ifsseq@drawxaxislabel
+ \sseq@eval{\noexpand\node[
+ align=center,
+ /sseqpages/global/every x axis label,
+ below,
+ shift={\sseq@xlabelposition},
+ ] {\unexpanded\expandafter{\sseq@xaxislabel}};}
+ \fi\fi
+ \ifx\sseq@yaxislabel\pgfutil@empty\else\ifsseq@drawyaxislabel
+ \sseq@eval{\noexpand\node[
+ align=center,
+ /sseqpages/global/every y axis label,
+ above,
+ rotate=90,
+ shift={\sseq@ylabelposition},
+ ] {\unexpanded\expandafter{\sseq@yaxislabel}};}
+ \fi\fi
+%
+ \sseq@grid
+ \sseq@handlexaxis % Draw the axis with pgf primitives. These are defined in sseqdrawing.code.tex
+ \sseq@handleyaxis
+ \endpgfonlayer
+%
+ \ifsseq@mathnodes
+ \tikzset{execute at begin node=$,execute at end node=$}%
+ \fi
+%
+ \begingroup
+ \sseq@savedbackgroundpaths
+ \endgroup
+%
+ \sseq@useclip
+%
+ \ifsseq@drawdifferentials\else
+ \let\sseq@differential@object\@gobble
+ \fi
+ \ifsseq@drawstructlines\else
+ \let\sseq@structline@object\@gobble
+ \fi
+%
+ \sseq@usesavedpaths
+%
+ \ifsseq@keepchanges
+ \xdef\sseq@restorestyles{\sseq@stylelist}
+ \fi
+ \end{tikzpicture}%
+ \ifsseq@keepchanges
+ \sseq@storecmds % store changes
+ \else
+ \sseq@pagecleanup % undo any changes specific to this page
+ \fi
+ \sseq@breakpoint
+ \ignorespacesafterend
+}
+
+% Shorthand for sseqpage with empty body
+\def\printpage[#1]{%
+ \begin{sseqpage}[#1]%
+ \end{sseqpage}%
+}
+
+
+\def\SseqCopyPage#1#2#3{
+ \begingroup
+ \def#1{\begingroup}
+ \global\let\sseq@copymacro\empty
+ \def\sseq@thename{#2}
+ \global\let\sseq@savedpaths@save\sseq@savedpaths
+ \sseq@storelist@get\sseq@savedpaths
+ \def\sseq@thepage{#3}
+ \sseq@thepagecount=#3\relax
+ \def\sseq@beginscope@object{\sseq@g@addto@macro#1{\sseq@savedpaths@add{\sseq@beginscope@object}}}
+ \def\sseq@endscope@object{\sseq@g@addto@macro#1{\sseq@savedpaths@add{\sseq@endscope@object}}}
+ \def\sseq@scope@object##1{\sseq@g@addto@macro#1{\sseq@savedpaths@add{\sseq@scope@object{##1}}}}
+ \def\sseq@style@object##1{\sseq@g@addto@macro#1{\sseq@savedpaths@add{\sseq@style@object{##1}}}}
+ \let\sseq@class@drawnode\sseq@copypage@addclass
+ \let\sseq@differential@object\@gobble
+ \let\sseq@structline@draw\sseq@copypage@addstructline
+ \let\sseq@tikzpath@object\@gobble
+ \let\sseq@pgfkeysdocommand\@gobbletwo
+ \sseq@savedpaths
+ \sseq@g@addto@macro#1{\endgroup}
+ \endgroup
+ \@xp\let\csname\sseq@macroname#1 copiedcode\endcsname\sseq@copymacro
+ \DeclareSseqGroup #1 {} { \csname\sseq@macroname#1 copiedcode\endcsname }
+ \let\sseq@savedpaths\sseq@savedpaths@save
+}
+
+\def\sseq@copypage@addclass#1{
+ \sseq@x@addto@macro\sseq@copymacro{\@nx\sseq@class@copy{\sseq@thename}{#1}}
+}
+
+\def\sseq@copypage@addstructline#1{
+ \sseq@x@addto@macro\sseq@copymacro{\@nx\sseq@structline@copy{\sseq@thename}{#1}}
+}
+
+
+%%% Scope
+\newcount\sseq@scope@savestackid
+\def\sseq@scope@secondpasstoks{}
+\def\sseq@scope{\@ifnextchar[{\sseq@scope@}{\sseq@scope@[]}}%]
+\def\sseq@scope@[#1]{%
+ \sseq@scope@savedpaths@add{\sseq@beginscope@object}%
+ % This is a funky hack to fix a problem with shifts. On tmfass, if we don't handle shifts specially, we actually put so much stuff into
+ % this \sseq@scope@secondpasstoks macro that we exceed TeX's upper bound for the maximum total macro memory. Or something like that -- I don't understand the error,
+ % but it definitely only depends on how much stuff there is overall and on there being lots of scopes, not on any particular part of the diagram.
+ % Anyways, to avoid this excessive storage demand, we don't put the shifts into the scope toks and apply them tons of times, we just do them once.
+ \let\sseq@options@scopeshiftsecondpass\sseq@scope@savedpaths@add
+ \sseq@processoptions{scope}{#1}% outputs into \sseq@savedoptioncode
+ \edef\sseq@scope@secondpasstoks{\unexpanded\@xp{\sseq@scope@secondpasstoks}\unexpanded\@xp{\sseq@savedoptioncode}}
+ \sseq@eval{\@nx\sseq@scope@savedpaths@add{\@nx\sseq@scope@object{\sseq@scope@toks{\unexpanded\@xp{\sseq@scope@secondpasstoks}}}}}%
+ %\advance\sseq@scope@savestackid\@ne
+ %\sseq@savestack@name{scope@save\the\sseq@scope@savestackid}
+}
+\def\sseq@endscope{%
+ \sseq@scope@savedpaths@add{\sseq@endscope@object}
+ %\sseq@restorestack@name{scope@save\the\sseq@scope@savestackid
+}
+
+
+
+
+
+
+
+\protected\def\sseq@xcoord{}\protected\def\sseq@ycoord{}
+
+
+%%% "Quick" commands for "compiled" code.
+\def\sseq@qclass(#1,#2){
+ \sseq@obj@inccheckdef{partcoord.(#1,#2).numnodes}
+ \edef\tempn{\sseq@obj{partcoord.(#1,#2).numnodes}}
+ \edef\classname{class.(#1,#2,\tempn)}
+ \sseq@obj@xdef{\classname.n}{\tempn}
+ \sseq@obj@xdef{\classname.num}{0}
+ \sseq@obj@xdef{\classname[0].page}{\sseq@infinity}
+ \sseq@savedpaths@addclass{class.(#1,#2,\tempn)}
+}
+\def\sseq@qclassnamed(#1,#2)#3{
+ \sseq@qclass(#1,#2)
+ \def\sseq@class@name{#3}
+ \sseq@obj@xdef{\classname[0].name}{\sseq@class@name}
+ \sseq@obj@xdef{class.namedclass.\detokenize\@xp{\sseq@class@name}}{#1,#2,\tempn}
+}
+
+\def\sseq@qdnamed#1(#2)(#3){\sseq@eval{\@nx\sseq@qd#1(\sseq@obj{class.namedclass.\detokenize{#2}})(\sseq@obj{class.namedclass.\detokenize{#3}})}}
+\def\sseq@qd#1(#2,#3,#4)(#5,#6,#7){
+ \bgroup
+ \def\sseq@dname{d.#1(#2,#3,#4)(#5,#6,#7)}
+ \def\source{(#2,#3,#4)}
+ \def\target{(#5,#6,#7)}
+ \sseq@obj@gdef{\sseq@dname.page}{#1}
+ \sseq@obj@gdef{\sseq@dname.source}{(#2,#3,#4)}
+ \sseq@obj@gdef{\sseq@dname.target}{(#5,#6,#7)}
+ \sseq@d@setpageminrec{class.\source}{#1}{source}% automatically handles \sseq@cleanup@obj
+ \sseq@d@setpageminrec{class.\target}{#1}{target}
+ \sseq@savedpaths@adddifferential{\sseq@dname}
+ \egroup
+}
+
+\def\sseq@qstructlinenamed(#1)(#2){\sseq@eval{\@nx\sseq@qstructline(\sseq@obj{class.namedclass.\detokenize{#1}})(\sseq@obj{class.namedclass.\detokenize{#2}})}}
+\def\sseq@qstructline(#1,#2,#3)(#4,#5,#6){
+ \def\source{(#1,#2,#3)}
+ \def\target{(#4,#5,#6)}
+ \sseq@obj@xdef{structline.\source\target.num}{0}
+ \def\sseq@pagemin{0}
+ \edef\sseq@structlinename{structline.\source\target[\sseq@obj{structline.\source\target.num}]}
+ \sseq@cleanup@obj{\sseq@structlinename.page}
+ \sseq@obj@xdef{\sseq@structlinename.page}{\sseq@infinity}
+ \sseq@obj@xdef{\sseq@structlinename.pagemin}{\sseq@pagemin}
+ \sseq@obj@xdef{\sseq@structlinename.source}{\source}
+ \sseq@obj@xdef{\sseq@structlinename.target}{\target}
+ \sseq@class@adddependence{class.\source}{\sseq@structlinename}% If the source or target is already dead, this will set structlinename.page
+ \sseq@class@adddependence{class.\target}{\sseq@structlinename}
+ \sseq@savedpaths@addstructline{structline.\source\target}
+ %\sseq@cleanup@obj{\sseq@structlinename.options}
+ %\sseq@obj@xdef{\sseq@structlinename.options}{\ifsseq@needstikz\@nx\sseq@needstikztrue\fi\unexpanded\@xp{\sseq@savedoptioncode}}
+}
+
+
+%%%%%
+%%
+%% The main commands
+%%
+%%%%%
+%%% \class, \classoptions, \replaceclass
+\sseq@DeclareDocumentCommand\class{or()}{%
+ \begingroup
+ \sseq@loadinputline
+ \IfNoValueT{#2}{\sseq@break}
+ \sseq@xsetthiscall{\string\class\IfNoValueF{#1}{[\unexpanded{#1}]}\unexpanded{(#2)}}%
+ \sseq@options@firstpassmode
+ \the\sseq@sseqstyle
+ \the\sseq@classstyle
+ \the\sseq@scope@toks
+ \sseq@options@normalmode
+ \IfNoValueF{#1}{%
+ \sseq@processoptions{class}{#1}% Outputs result into \sseq@savedoptioncode
+ }%
+%
+ \@ifundefined{sseq@class@page}{}{\sseq@error@xxx{cmdoptions-only}{page} {\string\class}{\string\classoptions}}% could be warnings
+ \@ifundefined{sseq@gen} {}{\sseq@error@xxx{cmdoptions-only}{generation}{\string\class}{\string\classoptions}}
+%
+ \sseq@cparsecoord{#2}{}%
+ \ifnum\csname sseq@\sseq@classpattern @maxclasses\endcsname<\nodenum\relax
+ \sseq@error@xxxx{classpattern-too-many-classes}{(\partialcoord)}{\nodenum}{\sseq@classpattern}{\@xp\the\csname sseq@\sseq@classpattern @maxclasses\endcsname}
+ \sseq@breakfi
+ \fi
+%%%% No more breaks after this point
+
+ \sseq@processlabels % This sets up the label nodes, now that we know the position of the class (I think that's what we needed?)
+ \sseq@class@main % We segment off the main part of the class so that we can call it separately from the copy method
+ \sseq@breakpoint
+ \endgroup
+}
+%
+\def\sseq@class@main{
+ \ifx\sseq@classinsert\empty
+ % by default, just insert to the right of previous classes
+ \edef\sseq@classinsert{\nodenum}
+ \else
+ \ifnum\sseq@classinsert<\z@
+ % negative 1 is where we would normally insert things
+ \edef\sseq@classinsert{\the\numexpr\nodenum+\sseq@classinsert+1}
+ \fi
+ \ifnum\sseq@classinsert<\@ne
+ \def\sseq@classinsert{1}
+ \fi
+ \ifnum\sseq@classinsert>\nodenum\relax
+ \edef\sseq@classinsert{\nodenum}
+ \fi
+ \ifnum\nodenum>\@ne
+ \@xp\sseq@class@adjustclasses\@xp{\partialcoord} % Adjust all of the indices of the classes to the right of the one we're inserting
+ \fi
+ \fi
+%
+%
+ \sseq@xminmax{\xcoord}{\ycoord}%
+ \sseq@yminmax{\xcoord}{\ycoord}%
+ \sseq@cleanup@obj{partcoord.(\partialcoord).numnodes}%
+ \sseq@obj@xdef{partcoord.(\partialcoord).numnodes}{\nodenum}%
+ \edef\classname{class.\coord[0]}%
+ \ifx\sseq@class@tag\pgfutil@empty\else
+ \sseq@obj@ifdef{partcoord.(\partialcoord).tag.\sseq@class@tagprefix\sseq@class@tag}{
+ \sseq@error@xx{class-tag-already-defined}{\sseq@class@tagprefix\sseq@class@tag}{(\partialcoord)}% could be warning
+ }{}
+ \sseq@cleanup@obj{class.\coord.tag}
+ \sseq@obj@xdef{class.\coord.tag}{\sseq@class@tagprefix\sseq@class@tag}
+ \sseq@cleanup@obj{partcoord.(\partialcoord).tag.\sseq@class@tagprefix\sseq@class@tag}
+ \sseq@obj@xdef{partcoord.(\partialcoord).tag.\sseq@class@tagprefix\sseq@class@tag}{\nodenum}%
+ \fi
+ \ifx\sseq@class@name\pgfutil@empty\else
+ \sseq@cleanup@obj{\classname.name}
+ \sseq@cleanup@obj{class.namedclass.\detokenize\@xp{\sseq@class@name}}
+ \sseq@obj@xdef{\classname.name}{\sseq@class@name}
+ \sseq@obj@xdef{class.namedclass.\detokenize\@xp{\sseq@class@name}}{\coordnopar}
+ \fi
+ \sseq@pushstack@\coord
+%
+%
+ \sseq@obj@gdef{class.\coord.num}{0}% For \replaceclass
+ \sseq@obj@xdef{\classname.page}{\sseq@infinity}%
+ \sseq@obj@xdef{class.\coord.n}{\sseq@classinsert}
+ \ifx\sseq@familylist\pgfutil@empty\else
+ \sseq@obj@xodef{\classname.familylist}{\sseq@familylist}
+ \fi
+ \ifx\sseq@savedoptioncode\pgfutil@empty\else
+ \sseq@obj@xodef{\classname.options}{\sseq@savedoptioncode}%
+ \fi
+ \ifx\sseq@classnodetext\pgfutil@empty\else
+ \sseq@obj@xodef{\classname.nodetext}{\sseq@classnodetext}
+ \fi
+ \ifx\sseq@classnodetextoptions\pgfutil@empty\else
+ \sseq@obj@xodef{\classname.nodetext.options}{\sseq@classnodetextoptions}
+ \fi
+ \ifx\sseq@classlabelnodes\pgfutil@empty\else
+ \sseq@obj@xodef{\classname.labelnodes}{\sseq@classlabelnodes}%
+ \fi
+ \ifcsname sseq@class@showname\endcsname
+ \sseq@obj@xodef{\classname.showname}{\sseq@class@showname}
+ \fi
+ \ifsseq@needstikz
+ \sseq@obj@xdef{\classname.needstikz}{\sseq@needstikztrue}%
+ \fi
+ \@ifundefined{sseq@tempoffset}{}{%
+ \tikz@scan@one@point\sseq@setoffset\sseq@tempoffset
+ }%
+ \ifx\sseq@tooltip\pgfutil@empty\else
+ \sseq@obj@protectedxdef{\classname.tooltip}{\sseq@tooltip}
+ \fi
+%
+ \sseq@savedpaths@addclass{class.\coord}%
+}
+\def\sseq@setoffset#1{\sseq@obj@gdef{\classname.offset}{\pgftransformshift{#1}}}
+
+\def\sseq@copy@nameprefix{}
+
+\def\sseq@class@copy#1#2{
+ \begingroup
+ \let\sseq@thename@saved\sseq@thename
+ \def\sseq@thename{#1}
+ \sseq@lettoobj\sseq@familylist{#2.familylist}
+ \sseq@lettoobj\sseq@savedoptioncode{#2.options}
+ \sseq@lettoobj\sseq@classnodetext{#2.nodetext}
+ \sseq@lettoobj\sseq@classnodetextoptions{#2.nodetext.options}
+ \sseq@lettoobj\sseq@classlabelnodes{#2.labelnodes}
+ \sseq@obj@ifdef{#2.showname}{\sseq@lettoobj\sseq@class@showname{#2.showname}}{}
+ \sseq@lettoobj\sseq@class@name{#2.name}
+ \edef\sseq@class@name{\unexpanded\@xp{\sseq@copy@nameprefix}\unexpanded\@xp{\sseq@class@name}}
+ \sseq@obj{#2.needstikz}
+ \sseq@lettoobj\sseq@tooltip{#2.tooltip}
+ \sseq@class@getparts#2.
+ \sseq@quieterror{class-tag-already-defined}
+ \edef\sseq@class@tag{copiedfrom\sseq@thisposnum}
+ \let\sseq@thename\sseq@thename@saved
+ \sseq@eval{\@nx\sseq@cparsecoord{\the\sseq@tempx,\the\sseq@tempy}}
+ \let\sseq@pushstack@\@gobble
+ \sseq@class@main
+ \endgroup
+}
+
+
+% This is for use with "insert" key. Add one to offset index of each class later than the one currently being inserted
+% Takes the partial coordinate "x,y" in #1, and the position that the new class is being inserted into in \sseq@classinsert.
+\def\sseq@class@adjustclasses#1{
+ \sseq@tempcount=\z@
+ \sseq@tempcountb=\sseq@obj{partcoord.(#1).numnodes}
+ \loop
+ \advance\sseq@tempcount\@ne
+ \ifnum\sseq@obj{class.(#1,\the\sseq@tempcount).n}<\sseq@classinsert\relax\else
+ \sseq@cleanup@obj{class.(#1,\the\sseq@tempcount).n}
+ \sseq@eval{\@nx\sseq@obj@inc{class.(#1,\the\sseq@tempcount).n}} % unfortunately, \sseq@obj@inc uses \sseq@tempcount so we need this eval
+ \fi
+ \ifnum\sseq@tempcount<\sseq@tempcountb\repeat
+
+}
+
+\sseq@DeclareDocumentCommand\classoptions{od()}{%
+ \begingroup
+ \sseq@loadinputline
+ \sseq@xsetthiscall{\string\classoptions\IfNoValueF{#1}{[\unexpanded{#1}]}\unexpanded{(#2)}}%
+ \IfNoValueT{#1}{\sseq@error@x{cmdoptions-without-options}{\string\classoptions}\sseq@break}% could be warning
+ \sseq@options@firstpassmode
+ \the\sseq@sseqstyle
+ \the\sseq@classstyle
+ \the\sseq@scope@toks
+ \sseq@options@normalmode
+ \let\sseq@processlabels\sseq@processlabels@default % Don't double dip on labels from the scope or classstyle
+ \sseq@processoptions{class}{#1}% Outputs result into \sseq@savedoptioncode
+%
+ \IfNoValueTF{#2}{
+ \def\sseq@coord{\lastclass0}
+ }{
+ \def\sseq@coord{#2}
+ }
+ \sseq@parsecoord\coord{\sseq@coord}{\string\classoptions}%
+%
+ \sseq@processlabels
+%
+ \let\partialcoord\coord@partial
+ \edef\sseq@classnum{\sseq@obj@ifdef{class.\coord.num}{\sseq@obj{class.\coord.num}}{0}}
+ \@ifundefined{sseq@class@page}{%
+ \@ifundefined{sseq@gen}{
+ \@ifundefined{sseq@thepage}{
+ \let\sseq@gen\sseq@classnum
+ }{
+ \sseq@obj@pagetogen{class.\coord}{\sseq@thepage} % stores in \sseq@gen
+ }
+ \let\sseq@genmax\sseq@gen
+ }{
+ \ifnum\sseq@gen<\z@
+ \edef\sseq@gen{\the\numexpr\sseq@classnum+\sseq@gen+1}
+ \fi
+ \@ifundefined{sseq@genmax}{\let\sseq@genmax\sseq@gen}{
+ \edef\sseq@genmax{\the\numexpr\sseq@classnum+\sseq@genmax+1}
+ }
+ }
+ }{
+ \@ifundefined{sseq@gen}{}{\sseq@error{classoptions-page-gen}}% This could be a warning
+ \sseq@class@getgen{\sseq@class@page}
+ \@ifundefined{sseq@class@pagemax}{
+ % If no max is present, apply options to all pages starting at specified minimum
+ \let\sseq@genmax\sseq@classnum%
+ \let\sseq@class@pagemax\sseq@infinity % ensure if "page" is defined, "pagemax" is defined too
+ }{
+ \let\sseq@genmin\sseq@gen
+ \sseq@class@getgen{\sseq@class@pagemax}
+ \let\sseq@genmax\sseq@gen
+ \let\sseq@gen\sseq@genmin
+ }
+ \edef\sseq@class@page{\the\numexpr\sseq@class@page-\@ne}
+ \edef\sseq@class@pagemax{\the\numexpr\sseq@class@pagemax+\@ne}
+ }
+ \ifnum\sseq@gen=\m@ne
+ \let\sseq@gen\sseq@classnum
+ \fi
+ \edef\classname{class.\coord[\sseq@gen]}
+ \ifsseq@keepchanges\else
+ \ifnum\sseq@thepagecount>\sseq@obj{\classname.page}\relax
+ \sseq@error@xxx{classoptions-already-dead}{\sseq@gen}{\coordname}{\sseq@obj{\classname.page}}
+ \sseq@breakfifi
+ \fi
+ \ifnum\sseq@gen>\z@
+ \ifnum\sseq@thepagecount>\sseq@obj{class.\coord[\the\numexpr\sseq@gen-\@ne].page}\relax\else
+ \sseq@error@xx{classoptions-not-yet-born}{\sseq@gen}{\coord}{\sseq@class@page}%
+ \sseq@breakfififi
+ \fi
+ \fi
+ \fi{}
+ \ifx\sseq@class@tag\pgfutil@empty\else
+ \sseq@obj@ifdef{partcoord.(\partialcoord).tag.\sseq@class@tagprefix\sseq@class@tag}{%
+ \sseq@error@nn{class-tag-already-defined}{\sseq@class@tagprefix\sseq@class@tag}{\sseq@partialcoord}% could be warning
+ }%
+ \sseq@cleanup@obj{class.\coord.tag}%
+ \sseq@obj@xdef{class.\coord.tag}{\sseq@class@tagprefix\sseq@class@tag}%
+ \sseq@cleanup@obj{partcoord.(\partialcoord).tag.\sseq@class@tagprefix\sseq@class@tag}%
+ \sseq@obj@xdef{partcoord.(\partialcoord).tag.\sseq@class@tagprefix\sseq@class@tag}{\sseq@index}%
+ \fi
+ \ifx\sseq@class@name\pgfutil@empty\else
+ \sseq@obj@ifdef{\classname.name}{
+ \sseq@error@nn{classoptions-class-already-named}{\coord}{\sseq@obj{\classname.name}}%could be warning
+ }{}
+ \sseq@cleanup@obj{\classname.name}
+ \sseq@cleanup@obj{class.namedclass.\detokenize\@xp{\sseq@class@name}}
+ \sseq@obj@xdef{\classname.name}{\sseq@class@name}
+ \sseq@obj@xdef{class.namedclass.\detokenize\@xp{\sseq@class@name}}{\coordnopar}
+ \fi
+ \sseq@tempcount=\sseq@gen\relax
+ \advance\sseq@tempcount\m@ne
+ \loop
+ \advance\sseq@tempcount\@ne
+ \edef\classname{class.\coord[\the\sseq@tempcount]}
+ \sseq@cleanup@obj{\classname.options}
+ \sseq@classoptions@setup@pagerange
+ \sseq@classoptions@obj@addto@withpagerange{\classname.options}{\sseq@savedoptioncode}
+ %
+ \ifx\sseq@classnodetext\pgfutil@empty\else
+ \sseq@cleanup@obj{\classname.nodetext}
+ \@ifundefined{sseq@class@page}{}{
+ \sseq@obj@xdef{\classname.nodetext}{
+ \@nx\ifnum\@nx\sseq@thepagecount<\the\numexpr\sseq@class@page+1\relax\relax
+ \unexpanded\@xptwo{\csname \sseq@obj@fullname{\classname.nodetext}\endcsname\fi}
+ }
+ }
+ \sseq@classoptions@obj@addto@withpagerange{\classname.nodetext}{\sseq@classnodetext}
+ \fi
+ \ifx\sseq@classnodetextoptions\pgfutil@empty\else
+ \sseq@cleanup@obj{\classname.nodetext.options}
+ \sseq@classoptions@obj@addto@withpagerange{\classname.nodetext.options}{\sseq@classnodetextoptions}
+ \fi
+ \ifx\sseq@classlabelnodes\pgfutil@empty\else
+ \sseq@cleanup@obj{\classname.labelnodes}
+ \sseq@classoptions@obj@addto@withpagerange{\classname.labelnodes}{\sseq@classlabelnodes}
+ \fi
+ \ifcsname sseq@class@showname\endcsname
+ \sseq@obj@xodef{\classname.showname}{\sseq@class@showname}
+ \fi
+ \ifx\sseq@familylist\pgfutil@empty\else
+ \sseq@cleanup@obj{\classname.familylist}
+ \sseq@classoptions@obj@addto@withpagerange{\classname.familylist}{\sseq@familylist}
+ \fi
+ \@ifundefined{sseq@tempoffset}{}{
+ \sseq@cleanup@obj{\classname.offset}
+ \tikz@scan@one@point\sseq@setoffset\sseq@tempoffset
+ }
+ \ifnum\sseq@tempcount<\sseq@genmax\repeat
+ \sseq@breakpoint
+ \endgroup
+}
+\def\sseq@classoptions@setup@pagerange{%
+ \@ifundefined{sseq@class@page}{
+ \def\sseq@classoptions@obj@addto@withpagerange@{\sseq@obj@gaddto{\sseq@tempobj}}
+ }{
+ \def\sseq@temp##1{##1}
+ \ifnum\sseq@tempcount=\sseq@gen\relax
+ \sseq@eval{\@nx\pretocmd\@nx\sseq@temp{\@nx\ifnum\sseq@thepagecount>\sseq@class@page\relax}{}{%
+ \@nx\sseq@error@x{this-shouldnt-happen}{file main, function \string\sseq@classoptions@setup@pagerange}
+ }}%
+ \apptocmd\sseq@temp{\fi}{}{\sseq@error@x{this-shouldnt-happen}{file main, function \string\sseq@classoptions@setup@pagerange}}
+ \fi
+ \ifnum\sseq@tempcount=\sseq@genmax\relax
+ \sseq@eval{\@nx\pretocmd\@nx\sseq@temp{\@nx\ifnum\sseq@thepagecount<\sseq@class@pagemax\relax}{}{\@nx\sseq@error@internal{}}}
+ \apptocmd\sseq@temp{\fi}{}{\sseq@error@internal{this-shouldnt-happen}{file main, function \string\sseq@classoptions@setup@pagerange}}
+ \fi
+ \@xp\def\@xp\sseq@temp\@xp##\@xp1\@xp{\@xp{\sseq@temp{##1}}}
+ \pretocmd\sseq@temp{\sseq@obj@gaddto{\sseq@tempobj}}{}{\sseq@error@internal{this-shouldnt-happen}{file main, function \string\sseq@classoptions@setup@pagerange}}
+ \let\sseq@classoptions@obj@addto@withpagerange@\sseq@temp
+ }
+}
+\def\sseq@classoptions@obj@addto@withpagerange#1#2{%
+ \def\sseq@tempobj{#1}%
+ \@xp\sseq@classoptions@obj@addto@withpagerange@\@xp{#2}%
+}
+\def\sseq@class@getgen#1{
+ \bgroup
+ \ifnum\sseq@classnum>\z@
+ \sseq@eval{\unexpanded{\sseq@obj@pagetogen{class.\coord}}{#1}} % stores in \sseq@gen
+ \else
+ \def\sseq@gen{0}
+ \fi
+ \sseq@smuggle@macro\sseq@gen
+ \egroup
+}
+
+\sseq@DeclareDocumentCommand\replaceclass{od()}{%
+ \begingroup
+ \sseq@loadinputline
+ \sseq@xsetthiscall{\string\replaceclass\IfNoValueF{#1}{[\unexpanded{#1}]}\unexpanded{(#2)}}
+%
+ \IfNoValueTF{#2}{
+ \def\sseq@coord{\lastclass0}
+ }{
+ \def\sseq@coord{#2}
+ }
+ \sseq@parsecoord\coord{\sseq@coord}{coordinate passed to \string\replaceclass}%
+ \sseq@replaceclassmain{#1}
+}
+
+\sseq@DeclareDocumentCommand\replacesource{o}{
+ \begingroup
+ \sseq@loadinputline
+ \sseq@xsetthiscall{\string\replacesource\IfNoValueF{#1}{[\unexpanded{#1}]}}
+ \sseq@parsedcoord@restore{\coord}{lastsource}
+ \sseq@replaceclassmain{#1}
+}
+
+\sseq@DeclareDocumentCommand\replacetarget{o}{
+ \begingroup
+ \sseq@loadinputline
+ \sseq@xsetthiscall{\string\replacetarget\IfNoValueF{#1}{[\unexpanded{#1}]}}
+ \sseq@parsedcoord@restore{\coord}{lasttarget}
+ \sseq@replaceclassmain{#1}
+}
+
+\def\sseq@replaceclassmain#1{
+ \sseq@options@firstpassmode
+ \the\sseq@sseqstyle
+ \the\sseq@classstyle
+ \the\sseq@scope@toks
+ \sseq@options@normalmode
+ \IfNoValueF{#1}{%
+ \sseq@processoptions{class}{#1}% Outputs result into \sseq@savedoptioncode
+ }%
+ \sseq@processlabels
+ \sseq@obj@ifundef{class.\coord.num}{\sseq@error@x{replaceclass-no-class}{\coordname}\sseq@break}{}
+ \sseq@ifdead\coord{}{\sseq@error@x{replaceclass-not-dead-yet}{\coordname}\sseq@break}
+%
+ \edef\oldclassname{class.\coord[\sseq@obj{class.\coord.num}]}
+ \sseq@cleanup@obj{class.\coord.num}
+ \sseq@obj@inc{class.\coord.num}
+ \edef\classname{class.\coord[\sseq@obj{class.\coord.num}]}
+%
+ \ifsseq@keepchanges\else
+ \ifnum\the\numexpr\sseq@obj{\oldclassname.page}<\sseq@thepagecount\else
+ \edef\sseq@temp{\sseq@obj{\oldclassname.page}}
+ \sseq@error@xxx{replaceclass-no-effect-on-this-page}{\coord}{\sseq@temp}{\the\numexpr\sseq@temp+\@ne}% warning
+ \sseq@breakfifi
+ \fi
+ \fi
+%
+ \let\partialcoord\coord@partial
+ \ifx\sseq@class@tag\pgfutil@empty\else
+ \sseq@obj@ifdef{partcoord.(\partialcoord).tag.\sseq@class@tagprefix\sseq@class@tag}{%
+ \sseq@error@nn{class-tag-already-defined}{\sseq@class@tagprefix\sseq@class@tag}{\sseq@partialcoord}% could be warning
+ }{}%
+ \sseq@cleanup@obj{partcoord.(\partialcoord).tag.\sseq@class@tagprefix\sseq@class@tag}%
+ \sseq@obj@xdef{partcoord.(\partialcoord).tag.\sseq@class@tagprefix\sseq@class@tag}{\nodenum}%
+ \fi
+ \ifx\sseq@class@name\pgfutil@empty
+ \sseq@obj@ifdef{\oldclassname.name}{
+ \sseq@lettoobj\sseq@class@name{\oldclassname.name}
+ \sseq@cleanup@obj{\classname.name}
+ \sseq@cleanup@obj{class.namedclass.\detokenize\@xp{\sseq@class@name}}
+ \sseq@obj@xdef{\classname.name}{\sseq@class@name}
+ \sseq@obj@xdef{class.namedclass.\detokenize\@xp{\sseq@class@name}}{\coordnopar}
+ }{}
+ \else
+ \sseq@cleanup@obj{\classname.name}
+ \sseq@cleanup@obj{class.namedclass.\detokenize\@xp{\sseq@class@name}}
+ \sseq@obj@xdef{\classname.name}{\sseq@class@name}
+ \sseq@obj@xdef{class.namedclass.\detokenize\@xp{\sseq@class@name}}{\coordnopar}
+ \fi
+ \let\partialcoord\coord@partial
+ \ifx\sseq@class@tag\pgfutil@empty\else
+ \sseq@obj@ifdef{partialcoord.(\partialcoord).tag.\sseq@class@tagprefix\sseq@class@tag}{%
+ \sseq@error@nn{class-tag-already-defined}{\sseq@class@tagprefix\sseq@class@tag}{\sseq@partialcoord}% could be warning
+ }{}%
+ \sseq@obj@xdef{partialcoord.(\partialcoord).tag.\sseq@class@tagprefix\sseq@class@tag}{\nodenum}%
+ \fi
+%
+ \ifcsname sseq@class@showname\endcsname
+ \sseq@obj@xodef{\classname.showname}{\sseq@class@showname}
+ \fi
+ \sseq@obj@xodef{\classname.familylist}{\sseq@familylist}
+ \sseq@obj@xdef{\classname.page}{\sseq@infinity}
+ \sseq@obj@xodef{\classname.options}{\sseq@savedoptioncode}
+ \ifx\sseq@classnodetext\pgfutil@empty\else
+ \sseq@obj@xodef{\classname.nodetext}{\sseq@classnodetext}
+ \fi
+ \ifx\sseq@classnodetextoptions\pgfutil@empty\else
+ \sseq@obj@xodef{\classname.nodetext.options}{\sseq@classnodetextoptions}
+ \fi
+ \sseq@obj@xodef{\classname.labelnodes}{\sseq@classlabelnodes}
+ \ifcsname sseq@class@showname\endcsname
+ \sseq@obj@xodef{\classname.showname}{\sseq@class@showname}
+ \fi
+ \sseq@obj@gdef{\classname.dependencies}{}
+ \ifsseq@needstikz
+ \sseq@obj@xdef{\classname.needstikz}{\sseq@needstikztrue}
+ \fi
+ \@ifundefined{sseq@tempoffset}{}{\tikz@scan@one@point\sseq@setoffset\sseq@tempoffset}
+%
+ \sseq@breakpoint
+ \endgroup
+}
+\def\sseq@class@draw@ifpage#1{
+ \bgroup
+ \sseq@obj@pagetogen{#1}{\sseq@thepage} % sets \sseq@gen
+ \ifnum\sseq@gen>\m@ne % -1 means no class to print
+ \ifnum\sseq@obj{#1[\sseq@gen].page}=\sseq@thepagecount
+ \sseq@thispagetrue
+ \fi
+ \sseq@drawtrue
+ \sseq@obj{#1[\sseq@gen].familylist}
+ \ifsseq@draw
+ \sseq@gsetthiscall{class #1}
+ \sseq@class@drawnode{#1[\sseq@gen]}
+ \fi
+ \fi
+ \egroup
+}
+
+% #1 -- object
+% #2 -- page
+% If there is a class #1 drawn on page #2, set \sseq@gen to be the generation of that class, otherwise set \sseq@gen to be -1.
+\def\sseq@obj@pagetogen#1#2{
+ \bgroup
+ \def\sseq@gen{-1}
+ \sseq@tempcount=\m@ne
+ \sseq@tempcountb=\sseq@obj{#1.num}\relax
+ \loop
+ \advance\sseq@tempcount\@ne
+ \ifnum\sseq@obj{#1[\the\sseq@tempcount].page}<#2\relax\else
+ \edef\sseq@gen{\the\sseq@tempcount}
+ \sseq@tempcount=\sseq@tempcountb\relax
+ \fi
+ \ifnum\sseq@tempcount<\sseq@tempcountb\repeat
+ \sseq@smuggle@macro\sseq@gen
+ \egroup
+}
+%%%
+%%% \kill, \d and \doptions
+%%%
+
+% Because \kill doesn't take options, there's no need to use \sseq@DeclareDocumentCommand for the outer command.
+% Rather than use \sseq@DeclareDocumentCommand with no arguments, we just do the normal stuff that \sseq@DeclareDocumentCommand would do,
+% Then call \sseq@d@grabpage, the command that is responsible for handling the strange syntax of the page argument for \d.
+\protected\def\sseq@kill{%
+ \begingroup
+ \sseq@setinputline % These two lines normally would happen inside of \sseq@DeclareDocumentCommand.
+ \sseq@loadinputline
+ \sseq@d@grabpage\sseq@kill@
+}
+
+
+% Now we need to parse a potential coordinate.
+\sseq@DeclareDocumentCommandAs\sseq@kill@\kill {d()} {
+ \sseq@xsetthiscall{\string\kill\unexpanded\@xp{\sseq@dpage}\IfNoValueF{#1}{(#1)}}%
+ \sseq@parsecoord\coordinate{\IfNoValueTF{#1}{\lastclass}{#1}}{}%
+ \sseq@parsedcoord@save{lastsource}{\coordinate}
+ \sseq@parsedcoord@save{lasttarget}{\coordinate}
+ \sseq@ifintexpr{\sseq@dpage}{%
+ \sseq@tempcount=\numexpr\sseq@dpage\relax % this is a convenient way to get rid of spaces because #3 has to be a number
+ }{%
+ \sseq@error@x{d-invalid-page}{\unexpanded\@xp{\sseq@dpage}}\sseq@break%
+ }%
+ \sseq@eval{\@nx\sseq@d@setpageminrec{class.\coordinate}{\the\sseq@tempcount}{coordinate}}% automatically handles \sseq@cleanup@obj
+ \sseq@breakpoint
+ \endgroup
+}
+
+% \sseq@d@grabpage is defined in sseqparsers.
+\sseq@DeclareDocumentCommand\d{o}{%
+ \begingroup
+ \sseq@loadinputline
+ \def\sseq@dtype{d}
+ \def\sseq@d@theoptions{#1}
+ \sseq@d@grabpage\sseq@d@
+}
+
+\sseq@DeclareDocumentCommand\doptions{o}{%
+ \begingroup
+ \sseq@loadinputline
+ \def\sseq@dtype{doptions}
+ \def\sseq@d@theoptions{#1}
+ \sseq@d@grabpage\sseq@d@
+}
+
+\def\sseq@d@{
+ \ifsseq@tempif
+ \csname sseq@\sseq@dtype @grabcoord\@xp\endcsname
+ \else
+ \sseq@eval{\@nx\sseq@d@main{\sseq@dtype}{\unexpanded\@xp{\sseq@d@theoptions}}{\sseq@dpage}{\sseq@NoValue}{\sseq@NoValue}}
+ \sseq@breakpoint
+ \endgroup
+ \fi
+}
+
+\sseq@DeclareDocumentCommandAs\sseq@d@grabcoord\d{d()d()}{
+ \sseq@eval{\@nx\sseq@d@main{\sseq@dtype}{\unexpanded\@xp{\sseq@d@theoptions}}{\sseq@dpage}}{#1}{#2}
+ \sseq@breakpoint
+ \endgroup
+}
+
+\sseq@DeclareDocumentCommandAs\sseq@doptions@grabcoord\doptions{d()d()}{
+ \sseq@eval{\@nx\sseq@d@main{\sseq@dtype}{\unexpanded\@xp{\sseq@d@theoptions}}{\sseq@dpage}}{#1}{#2}
+ \sseq@breakpoint
+ \endgroup
+}
+
+
+\def\sseq@d@main#1#2#3#4#5{%
+ \sseq@options@firstpassmode
+ \def\sseq@edgetype{differential}%
+ \the\sseq@sseqstyle
+ \the\sseq@edgestyle
+ \the\sseq@differentialstyle
+ \the\sseq@scope@toks
+ \sseq@options@normalmode
+ \IfNoValueF{#2}{%
+ \sseq@processoptions{differential}{#2}% Outputs result into \sseq@savedoptioncode
+ }%
+ \sseq@xsetthiscall{\@xp\string\csname#1\endcsname\IfNoValueF{#2}{\unexpanded{[#2]}}\unexpanded{#3}\IfNoValueF{#4}{\unexpanded{(#4)}}\IfNoValueF{#5}{\unexpanded{(#5)}}}%
+ \sseq@ifintexpr{#3}{%
+ \sseq@tempcount=\numexpr#3\relax % this is a convenient way to get rid of spaces because #3 has to be a number
+ }{%
+ \sseq@error@n{d-invalid-page}{#3}\sseq@break
+ }%
+ \sseq@eval{\@nx\sseq@dparsecoord{\the\sseq@tempcount}{\IfNoValueTF{#4}{\lastclass0}{\unexpanded{#4}}}{\unexpanded{#5}}}
+ \sseq@eval{\unexpanded{\csname sseq@d@#1\endcsname{#2}}{\the\sseq@tempcount}}%
+ \sseq@breakpoint
+}
+
+% #1 -- options
+% #2 -- page
+% #3 -- source coordinate
+\def\sseq@d@d#1#2{%%
+ \sseq@d@setpageminrec{class.\source}{#2}{source}% automatically handles \sseq@cleanup@obj
+ \sseq@d@setpageminrec{class.\target}{#2}{target}
+ %%% This is the last point we might break, so now the differential is good.
+ %%% Note that we can break inside \sseq@d@setpageclass inside \sseq@d@setpageminrec
+%
+ \ifsseq@drawdifferential % TODO: probably should get rid of invisible now that we have \kill...
+ \sseq@obj@xodef{d.#2\source\target.familylist}{\sseq@familylist}
+ \sseq@obj@gdef{d.#2\source\target.page}{#2}
+ \sseq@obj@xdef{d.#2\source\target.source}{\source}
+ \sseq@obj@xdef{d.#2\source\target.target}{\target}
+ \sseq@obj@xdef{d.#2\source\target.options}{\ifsseq@needstikz\@nx\sseq@needstikztrue\fi\unexpanded\@xp{\sseq@savedoptioncode}}
+%
+ \sseq@savedpaths@adddifferential{d.#2\source\target}%
+ \else
+ \sseq@obj@gdef{d.#2\source\target.invisible}{}
+ \fi
+}
+\def\sseq@d@doptions#1#2{%
+ \sseq@obj@ifundef{d.#2\source\target.options}{\sseq@error@n{cmdoptions-feature-doesn't-exist}{differential}\sseq@break}{}%
+ \sseq@obj@ifdef{d.#2\source\target.invisible}{\sseq@error{doptions-invisible}\sseq@break}
+ \ifsseq@keepchanges\else
+ \@ifundefined{sseq@thepage}{}{
+ \ifnum#2=\sseq@thepagecount\else\ifnum\sseq@thepagecount=\z@\else
+ \sseq@error@n{doptions-no-effect-on-this-page}{#2}\sseq@breakfififi
+ \fi\fi
+ }%
+ \fi
+%
+ \sseq@cleanup@obj{d.#2\source\target.familylist}
+ \sseq@obj@xoaddto{d.#2\source\target.familylist}{\sseq@familylist}
+ \sseq@cleanup@obj{d.#2\source\target.options}
+ \sseq@obj@xoaddto{d.#2\source\target.options}{\sseq@savedoptioncode}
+}
+
+% Some helper macros:
+% #1 -- class name for \sseq@obj
+% #2 -- page
+% #3 -- source or target for error handling purposes.
+\def\sseq@d@setpageminrec#1#2#3{% not really recursive.
+ \sseq@cleanup@obj{#1[\sseq@obj{#1.num}].page}
+ \sseq@cleanup@obj{#1[\sseq@obj{#1.num}].deathinfo}
+ \sseq@cleanup@obj{#1[\sseq@obj{#1.num}].deathline}
+ \sseq@d@setpageclass{#1}{#2}{#3}
+ \sseq@obj@map{#1[\sseq@obj{#1.num}].dependencies}{
+ \sseq@d@setpagemin{##1}{#2} % automatically handles cleanup
+ }
+}
+
+% #1 -- class name for \sseq@obj
+% #2 -- page
+% #3 -- source or target for error handling purposes.
+\def\sseq@d@setpageclass#1#2#3{
+ \edef\sseq@classgenname{#1[\sseq@obj{#1.num}]}
+ % If the class is dead, then it's only not an error if it died on the current page
+ \ifnum\sseq@obj{\sseq@classgenname.page}<\sseq@infinitycount
+ % If the page it died on is greater than this one, hit-wrong-order error
+ \ifnum\sseq@obj{\sseq@classgenname.page}>#2\relax
+ \let\sseq@deadclass@genname\sseq@classgenname
+ \sseq@preparestacktrace
+ \sseq@error@xxxx{d-hit-wrong-order}{#3}{\csname #3name\endcsname}{#2}{\the\sseq@temptoks}
+ \sseq@breakfifi
+ \fi
+ % If the page it died on is less than this one, class-already-hit error
+ \ifnum\sseq@obj{\sseq@classgenname.page}<#2\relax
+ \let\sseq@deadclass@genname\sseq@classgenname
+ \sseq@preparestacktrace
+ \sseq@error@xxxx{d-class-already-hit}{#3}{\csname #3name\endcsname}{#2}{\the\sseq@temptoks}
+ \sseq@breakfifi
+ \fi
+ \fi
+ % If the class has been replaced before, that's only okay if it was replaced on a previous page.
+ \ifnum\sseq@obj{#1.num}>\z@
+ \sseq@tempcount=\sseq@obj{#1.num}\relax
+ \advance\sseq@tempcount\m@ne
+ \ifnum\sseq@obj{#1[\the\sseq@tempcount].page}<#2\relax\else
+ \ifnum#2=\sseq@obj{#1[\the\sseq@tempcount].page}
+ \sseq@error@xxxx{d-hit-same-page-replaceclass}{#3}{\csname #3name\endcsname}{#2}{\sseq@obj{#1[\the\sseq@tempcount].deathinfo}}
+ \sseq@breakfififi
+ \else
+ \edef\sseq@deadclass@genname{#1[\the\numexpr\sseq@obj{#1.num}-\@ne]}
+ \sseq@preparestacktrace
+ \sseq@error@xxxx{d-hit-wrong-order}{#3}{\csname #3name\endcsname}{#2}{\the\sseq@temptoks}
+ \sseq@breakfififi
+ \fi
+ \fi
+ \fi
+ \sseq@obj@xdef{\sseq@classgenname.page}{#2}
+ \sseq@obj@xdef{\sseq@classgenname.deathinfo}{#3 of differential \sseq@thiscall\ on page #2}
+ \bgroup
+ \def\foreach{\@nx\@nx\@nx\foreach}
+ \protected\def\\{}
+ \let\sseq@possibleperiod\empty
+ \let\sseq@possibleperiodb\empty
+ \sseq@obj@xdef{\sseq@classgenname.deathlocation}{%
+ on input line \sseq@inputline\sseq@error@inforeachloop
+ }
+ \sseq@obj@xdef{\sseq@classgenname.deathline}{\sseq@inputline}
+ \sseq@tempiffalse
+ \edef\sseq@temp{\the\sseq@foreachcall}
+ \ifx\sseq@temp\pgfutil@empty\else\sseq@tempiftrue\fi
+ \ifx\sseq@restofstacktrace\pgfutil@empty\else\sseq@tempiftrue\fi
+ \sseq@obj@xdef{\sseq@classgenname.deathstacktrace}{%
+ \ifsseq@tempif
+ \unexpanded{\\\\}Stack trace for differential \@nx\unexpanded{\sseq@thiscall} that killed #3:\unexpanded{\\}%
+ \ifx\sseq@temp\sseq@empty\else\unexpanded{\ \ \ }\@nx\sseq@stack@unexpanded{\unexpanded\@xp{\the\sseq@foreachcall}}\fi
+ \unexpanded\@xp{\sseq@restofstacktrace}%
+ \fi
+ }
+ \egroup
+}
+
+\def\sseq@preparestacktrace{
+ \def\foreach{\@nx\foreach}
+ \edef\sseq@temp@i{\unexpanded\@xpthree{\sseq@obj{\sseq@deadclass@genname.deathline}}}
+ \edef\sseq@temp@ii{\sseq@inputline}
+ \ifx\sseq@temp@i\sseq@temp@ii
+ \sseq@temptoks\@xpthree{\sseq@obj{\sseq@deadclass@genname.deathinfo} (in the same \foreach loop)}
+ \else
+ \protected\def\\{}
+ \sseq@eval{\sseq@temptoks{\unexpanded\@xpthree{\sseq@obj{\sseq@deadclass@genname.deathinfo}}\space(\sseq@obj{\sseq@classgenname.deathlocation})}}
+ \sseq@e@addto@macro\sseq@errorinfo{\unexpanded\@xpthree{\sseq@obj{\sseq@deadclass@genname.deathstacktrace}}}
+ \fi
+}
+
+\def\sseq@d@setpagemin#1#2{
+ \ifnum\sseq@obj{#1.page}>#2\relax
+ \ifnum\sseq@obj{#1.pagemin}>#2\relax\else % prevent a d1 from getting rid of a structline that was supposed to start on page 5
+ \sseq@cleanup@obj{#1.page}
+ \sseq@obj@xdef{#1.page}{#2}
+ \fi
+ \fi
+}
+\def\sseq@differential@draw@ifpage#1{
+ \sseq@drawtrue
+ \sseq@obj{#1.familylist}
+ \ifsseq@draw
+ \ifnum\sseq@thepagecount=\z@
+ \sseq@drawdifferential{#1}
+ \else
+ \ifnum\sseq@obj{#1.page}>\sseq@thepagemm\relax
+ \ifnum\sseq@obj{#1.page}<\sseq@thepagemaxpp\relax
+ \sseq@drawdifferential{#1}
+ \fi
+ \fi
+ \fi
+ \fi
+}
+\def\sseq@drawdifferential#1{
+ \bgroup
+ \sseq@eval{
+ \@nx\sseq@drawedge\sseq@obj{#1.source}\sseq@obj{#1.target}{differential}{%
+ \@nx\sseq@obj{#1.options}
+ }
+ }
+ \egroup
+}
+%%%
+%%% \structline and \structlineoptions
+%%%
+
+\sseq@DeclareDocumentCommand\structline{od()}{%
+ \begingroup
+ \sseq@loadinputline
+ \IfNoValueTF{#2}{
+ \sseq@structline@main{structline}{#1}{#2}{#2}
+ }{
+ \def\next{\sseq@structline@@{structline}{#1}{#2}}%
+ \@xptwo\next\sseq@trimleadingspaces
+ }
+}
+\sseq@DeclareDocumentCommand\structlineoptions{od()}{%
+ \begingroup
+ \sseq@loadinputline
+ \IfNoValueTF{#2}{
+ \sseq@structline@main{structlineoptions}{#1}{#2}{#2}
+ }{
+ \def\next{\sseq@structlineoptions@@{structlineoptions}{#1}{#2}}%
+ \@xptwo\next\sseq@trimleadingspaces
+ }
+}
+
+\sseq@DeclareDocumentCommandAs\sseq@structline@@\structline{mmmd()}{%
+ \sseq@structline@main{#1}{#2}{#3}{#4}
+}
+
+\sseq@DeclareDocumentCommandAs\sseq@structlineoptions@@\structlineoptions{mmmd()}{%
+ \sseq@structline@main{#1}{#2}{#3}{#4}
+}
+
+\def\sseq@structline@main#1#2#3#4{
+ \sseq@xsetthiscall{\string\structline\IfNoValueF{#2}{\unexpanded{[#2]}}\IfNoValueF{#3}{\unexpanded{(#3)}\IfNoValueF{#4}{\unexpanded{(#4)}}}}%
+ \def\sseq@edgetype{structline}
+ \sseq@options@firstpassmode
+ \the\sseq@sseqstyle
+ \the\sseq@edgestyle
+ \the\sseq@structlinestyle
+ \the\sseq@scope@toks
+ \sseq@options@normalmode
+ \IfNoValueF{#2}{%
+ \sseq@processoptions{struct line}{#2}% Outputs result into \sseq@savedoptioncode
+ }%
+ \def\sourcename{#3}%
+ \def\targetname{#4}%
+ \IfNoValueTF{#3}{%
+ \def\sourcename{\lastclass1}%
+ \def\targetname{\lastclass}%
+ }{%
+ \IfNoValueT{#4}{%
+ \def\targetname{\lastclass}%
+ }%
+ }%
+ \sseq@parsecoord\source{\sourcename}{source of structure line}%
+ \sseq@parsecoord\target{\targetname}{target of structure line}%
+ \ifnum\xsource>\xtarget\relax
+ \sseq@parsedcoords@swap\source\target
+ \else
+ \ifnum\xsource=\xtarget\relax
+ \ifnum\ysource>\ytarget\relax
+ \sseq@parsedcoords@swap\source\target
+ \else
+ \ifnum\ysource=\ytarget\relax
+ \ifnum\nsource>\ntarget\relax
+ \sseq@parsedcoords@swap\source\target
+ \else
+ \ifnum\nsource=\ntarget\relax
+ \sseq@error{structline-source-target-equal}%
+ \@xp\sseq@break\romannumeral-`0
+ \fi
+ \fi
+ \fi
+ \fi
+ \fi
+ \fi
+ \@ifundefined{sseq@structline@page}{%this is repeated in circleclasses
+ \def\sseq@pagemin{0}
+ \ifnum\sseq@obj{class.\source.num}>\z@
+ \edef\sseq@pagemin{\sseq@obj{class.\source[\the\numexpr\sseq@obj{class.\source.num}-1].page}}
+ \fi
+ \ifnum\sseq@obj{class.\target.num}>\z@
+ \edef\sseq@test{\sseq@obj{class.\target[\the\numexpr\sseq@obj{class.\target.num}-1].page}}
+ \ifnum\sseq@test>\sseq@pagemin\relax
+ \let\sseq@pagemin\sseq@test
+ \fi
+ \fi
+ }{\edef\sseq@pagemin{\the\numexpr\sseq@structline@page-\@ne}}
+ \csname sseq@structline@#1\endcsname
+ \sseq@breakpoint
+ \endgroup
+}
+\def\sseq@structline@structline{
+ \@ifundefined{sseq@structline@pagemax}{}{\ifnum\sseq@structline@pagemax=\sseq@infinity\else \sseq@error{structline-no-page-max}\fi}% could be warning
+ \ifnum\sseq@pagemin<\sseq@obj{class.\source[\sseq@obj{class.\source.num}].page}\relax\else
+ \sseq@error{structline-stillborn}
+ \sseq@breakfi
+ \fi
+ \ifnum\sseq@pagemin<\sseq@obj{class.\target[\sseq@obj{class.\target.num}].page}\relax\else % If the \structline is dead before it is born, throw an error
+ \sseq@error{structline-stillborn}
+ \sseq@breakfi
+ \fi
+ \sseq@obj@ifdef{structline.\source\target.num}{%
+ \ifnum\sseq@obj{structline.\source\target[\sseq@obj{structline.\source\target.num}].page}=\sseq@infinitycount
+ \sseq@error@xx{structline-already-exists}{\sourcename}{\targetname}
+ \sseq@breakfi
+ \fi
+ \sseq@cleanup@obj{structline.\source\target.num}
+ \sseq@obj@inc{structline.\source\target.num}
+ }{
+ \sseq@cleanup@obj{structline.\source\target.num}
+ \sseq@obj@gdef{structline.\source\target.num}{0}
+ \sseq@savedpaths@addstructline{structline.\source\target}
+ }
+ \edef\sseq@structlinename{structline.\source\target[\sseq@obj{structline.\source\target.num}]}
+ % The following cleanup call is needed to prevent a glitch where if a \structline is made inside of a temporary sseqpage environment, then later attempts
+ % to put a structline throw a "structline already exists" error
+ \sseq@cleanup@obj{\sseq@structlinename.page}
+ \sseq@obj@xdef{\sseq@structlinename.page}{\sseq@infinity}
+ \sseq@obj@xdef{\sseq@structlinename.pagemin}{\sseq@pagemin}
+ \sseq@obj@xdef{\sseq@structlinename.source}{\source}
+ \sseq@obj@xdef{\sseq@structlinename.target}{\target}
+ \sseq@class@adddependence{class.\source}{\sseq@structlinename}% If the source or target is already dead, this will set structlinename.page
+ \sseq@class@adddependence{class.\target}{\sseq@structlinename}
+ \sseq@obj@xodef{\sseq@structlinename.familylist}{\sseq@familylist}
+ \sseq@cleanup@obj{\sseq@structlinename.options}
+ \sseq@obj@xdef{\sseq@structlinename.options}{\ifsseq@needstikz\@nx\sseq@needstikztrue\fi\unexpanded\@xp{\sseq@savedoptioncode}}
+}
+\def\sseq@structline@structlineoptions{
+ \sseq@obj@ifundef{structline.\source\target.num}{
+ \sseq@error@n{cmdoptions-feature-doesn't-exist}{\structline}
+ \sseq@break
+ }{}
+ \@ifundefined{sseq@structline@page}{
+ \edef\sseq@gen{\sseq@obj{structline.\source\target.num}}
+ \let\sseq@genmax\sseq@gen
+ }{
+ \sseq@structline@getgen{\sseq@structline@page}
+ \@ifundefined{sseq@structline@pagemax}{%
+ % If no max is present, apply options to all pages starting at specified minimum
+ \edef\sseq@genmax{\sseq@obj{structline.\source\target.num}}%
+ \let\sseq@structline@pagemax\sseq@infinity
+ }{
+ \let\sseq@genmin\sseq@gen
+ \sseq@structline@getgen{\sseq@structline@pagemax}
+ \let\sseq@genmax\sseq@gen
+ \let\sseq@gen\sseq@genmin
+ }
+ \edef\sseq@structline@page{\the\numexpr\sseq@structline@page-1}
+ \edef\sseq@structline@pagemax{\the\numexpr\sseq@structline@pagemax+1}
+ }
+ \sseq@tempcount=\sseq@gen\relax
+ \advance\sseq@tempcount\m@ne
+ \loop
+ \advance\sseq@tempcount\@ne
+ \edef\sseq@structlinename{structline.\source\target[\the\sseq@tempcount]}
+ \sseq@cleanup@obj{\sseq@structlinename.options}
+ \sseq@cleanup@obj{\sseq@structlinename.familylist}
+ \ifsseq@needstikz
+ \sseq@obj@gaddto{\sseq@structlinename.options}{\sseq@needstikztrue}
+ \fi
+ \ifnum\sseq@tempcount=\sseq@gen\relax
+ \@ifundefined{sseq@structline@page}{}{
+ \edef\sseq@savedoptioncode{\@nx\ifnum\sseq@thepagecount>\sseq@structline@page\relax\unexpanded\@xp{\sseq@savedoptioncode}\@nx\fi}
+ \edef\sseq@familylist{\@nx\ifnum\sseq@thepagecount>\sseq@structline@page\relax\unexpanded\@xp{\sseq@familylist}\@nx\fi}
+ }
+ \fi
+ \ifnum\sseq@tempcount=\sseq@genmax\relax
+ \@ifundefined{sseq@structline@pagemax}{}{
+ \edef\sseq@savedoptioncode{\@nx\ifnum\sseq@thepagecount<\sseq@structline@pagemax\relax\unexpanded\@xp{\sseq@savedoptioncode}\@nx\fi}
+ \edef\sseq@familylist{\@nx\ifnum\sseq@thepagecount<\sseq@structline@pagemax\relax\unexpanded\@xp{\sseq@familylist}\@nx\fi}
+ }
+ \fi
+ \sseq@obj@xoaddto{\sseq@structlinename.options}{\sseq@savedoptioncode}
+ \sseq@obj@xoaddto{\sseq@structlinename.familylist}{\sseq@familylist}
+ \ifnum\sseq@tempcount<\sseq@genmax\repeat
+}
+
+\def\sseq@structline@copy#1#2{
+ \begingroup
+ \sseq@structline@copy@decomposename#2
+ \let\sseq@thename@saved\sseq@thename
+ \def\sseq@pagemin{0}
+ \sseq@parsecoord\source{\sourcename}{source of structure line}%
+ \sseq@parsecoord\target{\targetname}{target of structure line}
+ \def\sseq@thename{#1}
+ \sseq@lettoobj\sseq@familylist{#2.familylist}
+ \sseq@lettoobj\sseq@savedoptioncode{#2.options}
+ \let\sseq@thename\sseq@thename@saved
+ \sseq@structline@structline
+ \endgroup
+}
+
+\def\sseq@structline@copy@decomposename#1.(#2,#3,#4)(#5,#6,#7){
+ \def\sourcename{#2,#3,copiedfrom#4}
+ \def\targetname{#5,#6,copiedfrom#7}
+}
+
+\def\sseq@structline@getgen#1{
+ \bgroup
+ \sseq@tempcount=\sseq@obj{structline.\source\target.num}\relax
+ \ifnum\sseq@tempcount>\z@
+ \ifnum#1<\z@\relax
+ \@ifundefined{sseq@thepage}{
+ \ifnum\sseq@obj{structline.\source\target[\the\sseq@tempcount].page}<\sseq@infinitycount
+ \sseq@tempcount=\sseq@obj{structline.\source\target[\the\sseq@tempcount].page}\relax
+ \else
+ \advance\sseq@tempcount\m@ne
+ \sseq@tempcount=\sseq@obj{structline.\source\target[\the\sseq@tempcount].page}\relax
+ \advance\sseq@tempcount\@ne
+ \fi
+ }{
+ \sseq@tempcount=\sseq@thepagecount
+ }
+ \advance\sseq@tempcount\@ne
+ \advance\sseq@tempcount#1\relax
+ \fi
+ \sseq@eval{\unexpanded{\sseq@obj@pagetogen{structline.\source\target}}{\the\sseq@tempcount}} % stores in \sseq@gen
+ \else
+ \def\sseq@gen{0}
+ \fi
+ \sseq@smuggle@macro\sseq@gen
+ \egroup
+}
+\def\sseq@class@adddependence#1#2{
+ \edef\sseq@temp{\sseq@obj{#1.num}}
+ \sseq@d@setpagemin{#2}{\sseq@obj{#1[\sseq@temp].page}}% automatically handles cleanup
+ \sseq@cleanup@obj{#1[\sseq@temp].dependencies}
+ \sseq@obj@xaddto{#1[\sseq@temp].dependencies}{\@nx\\{#2}}
+}
+\def\sseq@structline@draw@ifpage#1{
+ \bgroup
+ \ifnum\sseq@thepagecount=\z@
+ \ifnum\sseq@obj{#1[0].pagemin}=\z@
+ \sseq@drawtrue
+ \sseq@obj{#1[0].familylist}
+ \ifsseq@draw
+ \sseq@structline@draw{#1[0]}
+ \fi
+ \fi
+ \else
+ \sseq@obj@pagetogen{#1}{\sseq@thepage} % sets \sseq@gen
+ \ifnum\sseq@gen<\z@\else % negative sseq@gen means don't draw it
+ \ifnum\sseq@obj{#1[\sseq@gen].page}=\sseq@thepagecount
+ \sseq@thispagetrue
+ \fi
+ \ifnum\sseq@obj{#1[\sseq@gen].pagemin}<\sseq@thepagecount
+ \sseq@drawtrue
+ \sseq@obj{#1[\sseq@gen].familylist}
+ \ifsseq@draw
+ \sseq@structline@draw{#1[\sseq@gen]}
+ \fi
+ \fi
+ \fi
+ \fi
+ \egroup
+}
+\def\sseq@structline@draw#1{\sseq@eval{\@nx\sseq@drawedge\sseq@obj{#1.source}\sseq@obj{#1.target}{structline}{\@nx\sseq@obj{#1.options}}}}
+
+
+%% This is a dumb place to put this. It has to be after the differential commands are defined.
+\ifsseq@draftmode % Okay, have to dummy out all the main commands.
+ % Only add tikz background paths to the savedpaths. We need to draw background paths because they might change the bounding box!
+ \sseq@setsavedpaths@draftmode
+ \let\sseq@handlequote\@gobble
+%
+ % All we want to do here is record the range. Have to process options in order to figure out where it is.
+ \sseq@DeclareDocumentCommand\class{or()}{%
+ \begingroup
+ \sseq@loadinputline
+ \IfNoValueT{#2}{\sseq@break}%
+ \sseq@xsetthiscall{\string\class\IfNoValueF{#1}{[\unexpanded{#1}]}\unexpanded{(#2)}}%
+ \sseq@options@firstpassmode
+ \the\sseq@sseqstyle
+ \the\sseq@classstyle
+ \sseq@options@normalmode
+ \IfNoValueF{#1}{%
+ \sseq@processoptions{class}{#1}% Outputs result into \sseq@savedoptioncode
+ }%
+ \sseq@cparsecoord{#2}{}%
+ \sseq@xminmax{\xcoord}{\ycoord}%
+ \sseq@yminmax{\xcoord}{\ycoord}%
+ \sseq@pushstack@\coord % also need the class stack to calculate other \class commands.
+ \sseq@cleanup@obj{partcoord.(\partialcoord).numnodes}%
+ \ifnum\nodenum=\@ne
+ \sseq@obj@gdef{partcoord.(\partialcoord).numnodes}{0}%
+ \fi
+ \sseq@obj@xdef{partcoord.(\partialcoord).numnodes}{\nodenum}%
+ \edef\classname{class.\coord[0]}%
+ \ifx\sseq@class@tag\pgfutil@empty\else
+ \sseq@obj@ifdef{partcoord.(\partialcoord).tag.\sseq@class@tagprefix\sseq@class@tag}{%
+ \sseq@error@xx{class-tag-already-defined}{\sseq@class@tagprefix\sseq@class@tag}{(\partialcoord)}% could be warning
+ }{}%
+ \sseq@cleanup@obj{partcoord.(\partialcoord).tag.\sseq@class@tagprefix\sseq@class@tag}%
+ \sseq@obj@xdef{partcoord.(\partialcoord).tag.\sseq@class@tagprefix\sseq@class@tag}{\nodenum}%
+ \fi
+ \ifx\sseq@class@name\pgfutil@empty\else
+ \sseq@cleanup@obj{\classname.name}
+ \sseq@cleanup@obj{class.namedclass.\detokenize\@xp{\sseq@class@name}}
+ \sseq@namehandler
+ \sseq@obj@xdef{\classname.name}{\sseq@class@name}
+ \sseq@obj@xdef{class.namedclass.\detokenize\@xp{\sseq@class@name}}{\coordnopar}
+ \fi
+ \sseq@breakpoint
+ \endgroup
+ }
+
+ % Now the rest of these can be no-ops
+ \sseq@DeclareDocumentCommand\classoptions{od()}{}
+ \sseq@DeclareDocumentCommand\replaceclass{od()}{}
+ \sseq@DeclareDocumentCommand\replacesource{o}{}
+ \sseq@DeclareDocumentCommand\replacetarget{o}{}
+ \def\sseq@d@main#1#2#3#4#5{}
+ \DeclareDocumentCommand \sseq@DrawIfValidDifferential@@ { d() d() } {}
+ \sseq@DeclareDocumentCommand\structline{od()d()}{}
+ \sseq@DeclareDocumentCommand\structlineoptions{od()d()}{}
+ \sseq@DeclareDocumentCommand\circleclasses{or()r()}{}
+ \sseq@DeclareDocumentCommand\gettag{mr()}{}
+ \endinput
+\fi
+
+
+\newcount\sseq@circleclassuid
+\sseq@DeclareDocumentCommand\circleclasses{or()r()}{
+ \begingroup
+ \sseq@loadinputline
+ \def\sseq@keysfortikzprim{}
+ \IfNoValueF{#1}{
+ \sseq@processoptions{fit}{#1}
+ }
+ \sseq@parsecoord\coorda{#2}{first \@nx\circleclass class}
+ \sseq@parsecoord\coordb{#3}{second \@nx\circleclass class}
+%
+%
+ \ifsseq@keepchanges
+ \@ifundefined{sseq@fit@page}{% also in structline@main. TODO: refactor these chunks together?
+ \def\sseq@pagemin{0}
+ \ifnum\sseq@obj{class.\coorda.num}>\z@
+ \edef\sseq@pagemin{\sseq@obj{class.\coorda[\the\numexpr\sseq@obj{class.\coorda.num}-\@ne].page}}
+ \fi
+ \ifnum\sseq@obj{class.\coordb.num}>\z@
+ \edef\sseq@test{\sseq@obj{class.\coordb[\the\numexpr\sseq@obj{class.\coordb.num}-\@ne].page}}
+ \ifnum\sseq@test>\sseq@pagemin\relax
+ \let\sseq@pagemin\sseq@test
+ \fi
+ \fi
+ }{\edef\sseq@pagemin{\the\numexpr\sseq@fit@page-\@ne}}
+ \@ifundefined{sseq@fit@pagemax}{\let\sseq@pagemax\sseq@infinity}{\let\sseq@pagemax\sseq@fit@pagemax}
+ \else % Put it on the current page no matter what inside sseqpage
+ \let\sseq@pagemax\sseq@infinity\def\sseq@pagemin{-1}
+ \fi
+%
+%
+ \global\advance\sseq@circleclassuid\@ne
+ \edef\circleclassobjname{circleclass(\coordanopar)(\coordbnopar)\the\sseq@circleclassuid}
+%
+%
+ \sseq@obj@xodef{\circleclassobjname.options}{\sseq@savedoptioncode}
+ \sseq@obj@xodef{\circleclassobjname.familylist}{\sseq@familylist}
+ \sseq@obj@xodef{\circleclassobjname.tikzprimoptions}{\sseq@keysfortikzprim}
+ \sseq@obj@xdef{\circleclassobjname.fitnodes}{\@nx\tikz@lib@fit{(sseq{\coordanopar})(sseq{\coordbnopar})\sseq@fitalso}}
+ %\edef\temp{\@nx\sseq@circleclass@draw{\coorda@internalname}{\coordb@internalname}{\unexpanded\@xp{\sseq@savedoptioncode}}}
+ \sseq@savedpaths@xadd{\@nx\sseq@circleclass@object{\circleclassobjname}{\coordanopar}{\coordbnopar}}
+ \sseq@obj@xdef{\circleclassobjname.page}{\sseq@pagemax}
+ \sseq@obj@xdef{\circleclassobjname.pagemin}{\sseq@pagemin}
+ \@ifundefined{sseq@fit@pagemax}{
+ \ifsseq@keepchanges
+ \sseq@class@adddependence{class.\coorda}{\circleclassobjname}% If the source or target is already dead, this will set structlinename.page
+ \sseq@class@adddependence{class.\coordb}{\circleclassobjname}
+ \fi
+ }{}
+ \sseq@breakpoint
+ \endgroup
+}
+
+\ifsseq@patchfit\else
+ \sseq@DeclareDocumentCommand\circleclasses{or()r()}{%
+ \sseq@warning{circleclasses-not-provided}
+ }
+\fi
+
+\def\sseq@circleclass@draw@ifpage#1#2#3{
+ \sseq@drawtrue
+ \sseq@obj{#1.familylist}
+ \ifsseq@draw
+ \ifnum\sseq@thepagecount<\numexpr\sseq@obj{#1.page}+\@ne
+ \ifnum\sseq@obj{#1.page}=\sseq@thepagecount
+ \sseq@thispagetrue
+ \fi
+ \ifnum\sseq@obj{#1.pagemin}<\sseq@thepagecount
+ \sseq@circleclass@draw{#1}{#2}{#3}
+ \fi
+ \fi
+ \fi
+}
+
+%%
+%% Labels
+%%
+%% This code is called from the key value handler, but it has more to do with the code in this file so I am putting it here. Search in sseqkeys.code.tex for "Labels"
+%%
+
+\def\sseq@processlabels@default{%
+ \global\let\sseq@classnodetext\pgfutil@empty
+ \global\let\sseq@classnodetextoptions\pgfutil@empty
+ \global\let\sseq@classlabelnodes\pgfutil@empty
+}
+\let\sseq@processlabels\sseq@processlabels@default
+
+\let\sseqlastlabel\empty
+% I can't remember why we need to defer this. If at some point I figure this out, I should explain why here and in the definition of \class...
+\def\sseq@handleclassquotes@inner#1#2{%
+ \begingroup\pgfscope
+ \def\sseq@classquotes@smugglehook{}
+ \def\sseq@classquotes@smugglehook@inner{}
+ \sseq@options@firstpassmode
+ \sseq@thesseqstyle
+ \sseq@thelabelstyle
+ \sseq@theclasslabelstyle
+ \the\sseq@scope@toks
+ \sseq@options@normalmode
+ \gdef\sseqlastlabel{#2}
+ \sseq@processoptions{class/label}{#2}%
+ \sseq@classlabel@handler{#1}% labeltextfn is a private handler for transformations, sseq@classlabel@handler is exposed via "class label handler"
+ \ifsseq@classlabel
+ \sseq@options@firstpassmode
+ \the\sseq@outerclasslabelstyle
+ \sseq@x@addto@macro\sseq@classlabelnodes{%
+ \@nx\sseq@drawlabel{%
+ \sseq@maybemathswitch\unexpanded\@xp{\result}\sseq@maybemathswitch}%
+ {% This is set up to prevent a bug where \classoptions and class label style don't work correctly together
+ \the\sseq@sseqstyle\@nx\the\sseq@sseqstyle@page
+ \the\sseq@labelstyle\@nx\the\sseq@labelstyle@page
+ \the\sseq@classlabelstyle\@nx\the\sseq@classlabelstyle@page
+ \sseq@theouterclasslabelstyle
+ \@nx\sseq@collections@labels@hook
+ \@nx\sseq@collections@classlabels@hook
+ \@nx\sseq@collections@outerclasslabels@hook
+ \unexpanded\@xp{\sseq@savedoptioncode}%
+ }%
+ }%
+ \else
+ \let\sseq@classquotes@smugglehook\sseq@classquotes@smugglehook@inner
+ \sseq@options@firstpassmode
+ \the\sseq@innerclasslabelstyle
+ \sseq@options@normalmode
+ \sseq@protectedeval{\@nx\pgfqkeys{/sseqpages/class/label}{#2}}%
+ \sseq@protected@xdef\sseq@classnodetext{\sseq@maybemathswitch\result\sseq@maybemathswitch}%
+ \xdef\sseq@classnodetextoptions{%
+ %\unexpanded{\def\pgfkeysdefaultpath{/sseqpages/class/node texts/}}%
+ \sseq@thelabelstyle\sseq@theclasslabelstyle\sseq@theinnerclasslabelstyle
+ \@nx\sseq@collections@labels@hook
+ \@nx\sseq@collections@classlabels@hook
+ \@nx\sseq@collections@innerclasslabels@hook
+ \unexpanded\@xp{\sseq@savedoptioncode}%
+ }%
+ \fi
+ \@xp\endpgfscope\@xp\endgroup
+ \sseq@classquotes@smugglehook
+}
+
+\def\sseq@handleedgequotes#1#2{% We use this via \let\tikz@quotes@as\sseq@handleedgequotes
+ /utils/exec={% so it's called inside \pgfkeysalso{stuff}. Need to surround with /utils/exec={} to get out.
+ \let\sseq@savedoptioncode@save\sseq@savedoptioncode
+ \sseq@processoptions{label}{#2}
+ \sseq@needstikztrue
+ \let\sseq@temp\sseq@savedoptioncode
+ \let\sseq@savedoptioncode\sseq@savedoptioncode@save
+ \sseq@e@addto@options{
+ \@nx\tikzset{
+ every to/.append style={
+ edge node={
+ node [/sseqpages/label,
+ /utils/exec={
+ \let\@nx\sseq@tikz@transform@save\@nx\tikz@transform
+ \let\@nx\tikz@transform\relax
+ \@nx\sseq@thelabelstyle
+ \@nx\sseq@collections@labels@hook
+ \@nx\sseq@theedgelabelstyle
+ \@nx\sseq@collections@edgelabels@hook
+ \@xp\@nx\csname sseq@the\sseq@edgetype labelstyle\endcsname
+ \@xp\@nx\csname sseq@collections@\sseq@edgetype labels@hook\endcsname
+ \unexpanded\@xp{\sseq@temp}
+ \ifsseq@rotatelabels\iftikz@fullytransformed\else\@nx\tikz@fullytransformedtrue\@nx\tikz@addtransform{\@nx\pgftransformresetnontranslations\@nx\sseq@globalrotatetransform}\fi\fi
+ \unexpanded\@xp{\sseq@edgeoptionhook} % this is just to make description work
+ \let\@nx\tikz@transform\@nx\sseq@tikz@transform@save
+ }
+ ]{\sseq@labeltextfn{#1}}
+ }
+ }
+ }
+ }
+ }
+}
+
+