lineno with fnlineno (16feb11)

git-svn-id: svn://tug.org/texlive/trunk@21442 c570f23f-e606-0410-a88d-b1316a301751

2 files changed, 1153 insertions, 2 deletions

diff --git a/Master/texmf-dist/tex/latex/lineno/fnlineno.sty b/Master/texmf-dist/tex/latex/lineno/fnlineno.sty
new file mode 100644
index 00000000000..5c53da606c7
--- /dev/null
+++ b/Master/texmf-dist/tex/latex/lineno/fnlineno.sty
@@ -0,0 +1,1149 @@
+\NeedsTeXFormat{LaTeX2e}[1994/12/01]
+\ProvidesPackage{fnlineno}[2011/01/07 v0.55
+                           numbers to footnote lines (UL)]
+
+%% Copyright (C) 2010 Uwe Lueck, 
+%% http://www.contact-ednotes.sty.de.vu 
+%% -- author-maintained in the sense of LPPL below -- 
+%%
+%% This file can be redistributed and/or modified under 
+%% the terms of the LaTeX Project Public License; either 
+%% version 1.3c of the License, or any later version.
+%% The latest version of this license is in
+%%     http://www.latex-project.org/lppl.txt
+%% We did our best to help you, but there is NO WARRANTY. 
+%%
+%% Please report bugs, problems, and suggestions via 
+%% 
+%%   http://www.contact-ednotes.sty.de.vu 
+%%
+%% {\it This work has been supported 
+%%  % and is owned      %% wrong, owner is RUB -- 2011/02/09
+%% by the Deutsche Forschungsgemeinschaft (DFG), 
+%% organized                        %% 2010/12/18 TODO!?
+%% by Prof.~Dr.\ Dr.\ Christian Tapp 
+%% at Ruhr-Universit\"at Bochum, Germany.}
+%% %% 2010/12/18:
+%% Christian also has constructed some critical tests.
+%% 
+%% === Installing and Calling ===
+%% The file 'fnlineno.sty' is provided ready, installation only requires 
+%% putting it somewhere where \TeX\ finds it 
+%% (which may need updating the filename data 
+%%  base).\footnote{\url{http://www.tex.ac.uk/cgi-bin/texfaq2html?label=inst-wlcf}}
+%% 
+%% As usually, 'fnlineno.sty' is loaded by 
+%% % \begin{verbatim}
+%%     `\usepackage{fnlineno}'
+%% % \end{verbatim}
+%% below the `\documentclass' line and before `\begin{document}'.
+%%
+%% === Limitations ===
+%% v0.55 %%% v0.5 %% 2011/02/09
+%% should really work 
+%% the way users expect,    %% 2011/02/09
+%% but please consider:
+%% % In the \strong{present version (v0.4)}, 'flnineno.sty' is just 
+%% % ``work in progress"---with at least the following issues:
+%% \begin{enumerate}
+%% %   \item Lines are numbered in an order 
+%% %         that you may not like, in the presence of 
+%% %         footnotes. 
+%% %         Overcoming this failure by automagic 
+%% %         will be the major further work on the package! 
+%% %         (v0.5!?)
+%% % 
+%% %   \item The package is not expected to work with 'manyfoot' 
+%% %         (neither 'ednotes' ... future work!).
+%%
+%%   \item Nothing is known about compatibility with 
+%%         packages (other than 'manyfoot' and 'bigfoot')
+%%         providing footnote features beyond standard \LaTeX.
+%% 
+%%   \item `\lipsum[<opt-arg>]' in main text produces 
+%%         a different number of paragraphs ...
+%% 
+%% %% 2010/12/18:
+%% %   \item `\pagebreak' (without optional argument, or 
+%% %         `\pagebreak[4]') in footnotes prints footnote parts 
+%% %         (splits) in wrong order.\footnote{TODO:
+%% %              (i)~extra case (using flag) in &\output 
+%% %              with $&\outputpenalty=-10000$; 
+%% %              \emph{or}
+%% %              (ii)~redefine &\pagebreak in footnotes ...}
+%% %% 2010/12/19, "tried" "assumed" 2010/12/21:
+%%   \item v0.41 tried supporting `\pagebreak' in footnotes 
+%%         for manual control of splitting footnotes. 
+%% %% 2010/12/20f.:
+%%         However, it wrongly assumed that `\pagebreak[4]'
+%%         forces a footnote split, cf. Section~\ref{sec:sw}; 
+%%         users better still don't use `\pagebreak'
+%%         in footnotes!
+%% 
+%%   \item Much of the code is ``guessed" without complete 
+%%         knowledge of \TeX\ internals and without having 
+%%         tested many possible cases.
+%% %% 2010/12/27:
+%%   \item \emph{Local} switching to ``pagewise" numbering
+%%         won't be possible for a while; we rather assume 
+%%         that you \emph{always} want ``pagewise" numbering. 
+%%
+%%   \item Nothing has been tried to offer choices about the 
+%%         \emph{style} of numbering footnotes.
+%% \end{enumerate}
+%%
+%%  \pagebreak              %% 2011/02/09
+%%  == Implementation ==
+%% === Terms ===
+%% ``\strong{OTR}" is short for \textit{``output routine"}, 
+%% ``\strong{MVL}" is short for \textit{``main vertical list"}.
+%% %%% TODO "acro"
+%%
+%% === Basic Strategy ===
+%% \LaTeX's |\@footnotetext| writes the footnote text into the 
+%% insertion register. For numbering the footnote lines, 
+%% \emph{we here} do not execute this `\@footnotetext' 
+%% immediately after placing |\@footnotemark|, 
+%% but postpone its |\insert| a little so it 
+%% is executed only after the main text paragraph has been 
+%% broken into lines. Right below the line that contains the 
+%% footnote mark, a special new ``slot" of the \strong{OTR} 
+%% is called that interchanges ``the page so far" with the 
+%% footnote text. When the latter has been typeset, 
+%% another ``slot" of the OTR puts ``the page so far" 
+%% back to the MVL and immediately after that fills the footnote 
+%% text as just typeset on the MVL into the `\insert' register. 
+%% 
+%% Passing footnotes from horizontal mode to vertical mode 
+%% resembles 'lineno''s `\PostponeVadjust', but a 
+%% different \strong{list} |\FNLN@list|
+%% must store code 
+%% (\textit{a})~for the footnote \strong{mark} and 
+%% (\textit{b})~for the footnote \strong{text}. 
+%% %%% (TODO: move this paragraph)
+%%
+%% === Package Options ===
+%% A package option |[check-latex]|     %% typo article 2010/12/31
+%% for checking vital \LaTeX\ internals may once be offered 
+%% (TODO 2010/12/12) ...
+\newif\if@FNLN@check@
+\DeclareOption{check-latex}{\@FNLN@check@true}
+\ProcessOptions
+%%
+%% === Footnote Commands ===
+%% ==== Standard Footnotes ====
+%% The following macro |\FNLN@ltx@fntext|           %% more 2010/12/16
+%% is a copy of \LaTeX's `\@footnotetext' 
+%% that we are varying. It may be used for a check 
+%% if the `\@footnotetext' that 'fnlineno.sty' encounters 
+%% is the one expected (TODO).
+%% In line numbering mode, this code may never be needed 
+%% all at once, rather we will have to see which material 
+%% must be used at which point of our unusual way of 
+%% processeing footnotes.
+\if@FNLN@check@
+  \long\def\FNLN@ltx@fntext#1{\insert\footins{%
+      \reset@font\footnotesize
+      \interlinepenalty\interfootnotelinepenalty
+      \splittopskip\footnotesep
+      \splitmaxdepth \dp\strutbox \floatingpenalty \@MM
+      \hsize\columnwidth \@parboxrestore
+      \protected@edef\@currentlabel{%
+         \csname p@footnote\endcsname\@thefnmark
+      }%
+      \color@begingroup
+        \@makefntext{%
+          \rule\z@\footnotesep\ignorespaces#1\@finalstrut\strutbox}%
+      \color@endgroup}}%
+\fi
+%%
+%% ==== Modifying Footnote Commands ====
+%% In order to number |\footnote| lines and make 
+%% `\linelabel' available in footnotes, it seems to suffice 
+%% (with standard \LaTeX) to \strong{redefine} 
+%% the internal |\@footnotetext|.
+%% In line numbering mode, `\@footnotetext' will act as 
+%% |\FNLN@text|, 
+%% % \begin{itemize}
+%% %  \item[(i)] 
+%% (\textit{i})~%
+%%        placing a ``signal" \strong{output penalty}
+%%        below the current line via `\vadjust' and
+%% %  \item[(ii)] 
+%% (\textit{ii})~%
+%%        appending the footnote text to the 
+%%        \strong{list} |\FNLN@list| of \strong{footnote texts}. 
+%% % \end{itemize}
+%% 
+%% |\FNLN@@text| stores the `\@footnotetext' found, 
+%% we might check if it is `\FNLN@ltx@fntext' ... %% TODO
+\let\FNLN@@text\@footnotetext
+\def\@footnotetext{%
+    \ifLineNumbers  \expandafter \FNLN@text
+    \else           \expandafter \FNLN@@text
+    \fi}
+\def \FNLN@text {%                      %% 2010/12/31 arg read later
+    \vadjust{\penalty-\FNLN@M@swap@codepen}%
+%% Standard \LaTeX's `\@footnotetext' expands `\@thefnmark' 
+%% to produce the footnote mark at the page bottom, 
+%% right after it has been determined for the mark 
+%% in the main text. \emph{Here} the footnote text 
+%% will be typeset only when \emph{other} footnote marks
+%% may have been formed for typesetting the main text 
+%% paragraph before. 
+%% %%% (TODO clearer wording)
+%% In the \strong{footnote list} 
+%% macro |\FNLN@list|, the (\dqtd{`&\protect'ed})
+%% \emph{current} expansion <mark> of `\@thefnmark' 
+%% is stored as an item preceding the footnote text 
+%% <text>. One footnote entry in `\FNLN@list' 
+%% thus has the form \lq`<mark>\@lt<text>\@lt'\rq.
+%% \LaTeX's internal `\g@addto@macro' is used to \emph{append} 
+%% an entry to the list (at the right). The OTR will later 
+%% take the entries from the left of the list. 
+%% 
+%% The argument of the auxiliary/temporary `\@tempa' 
+%% will contain the footnote text and thus must be able to 
+%% carry `\par' tokens. We therefore need a `\long' version of 
+%% `\protected@edef':
+   \let\@@protect\protect
+   \let\protect\@unexpandable@protect
+   \afterassignment\restore@protect
+   \long \edef \@tempa ##1{%
+        \noexpand\g@addto@macro \noexpand\FNLN@list {%
+            \@thefnmark \noexpand\@lt ##1\noexpand \@lt}}%
+%% ... issuing 
+%%     \lq`\g@addto@macro\FNLN@list{<mark>\elt<text>\@lt}'\rq\ ...
+   \@tempa                              %% reads arg
+}
+%% Here we initialize |\FNLN@list|:
+\let\FNLN@list\@empty
+%%
+%% === Output Routines ===
+%% ==== 'lineno''s Output Routine ====
+%% The following is a copy of 'lineno''s OTR
+%% that we are varying. It may be used for a check 
+%% if the OTR that 'fnlineno.sty' encounters 
+%% is the one expected (TODO).
+\if@FNLN@check@
+  \def\FNLN@lno@output {%
+    \LineNoTest
+    \if@tempswa
+      \ifnum\outputpenalty=-\@Mllbcodepen 
+        \WriteLineNo 
+      \else 
+        \ifnum\outputpenalty=-\@Mppvacodepen 
+          \PassVadjustList 
+        \else 
+          \LineNoLaTeXOutput 
+        \fi 
+      \fi 
+    \else  
+      \MakeLineNo
+    \fi
+  }
+%% The ``signal penalties" used here are
+  \mathchardef\FNLN@M@llbl@codepen=11111 
+  \mathchardef\FNLN@M@ppva@codepen=11112 
+\fi
+%% Their names should mean ```\linelabel' code penalty" and 
+%% ```\PostponeVadjust' code penalty."
+%%
+%% |\TheLineNoLaTeXOutput|:
+%% It turns out to be inconvenient here 
+%% that 'lineno' sacrifices access 
+%% to the \emph{primitive} `\output' (```\@tempa'"; 
+%%  TODO: auxiliary package before loading 'lineno'!?; 
+%%  later change 'lineno.sty' indeed). 
+%% So to change the OTR we use `\LineNoLaTeXOutput' as a hook 
+%% for adding additional cases of `\outputpenalt'ies. 
+%% We take a copy of `\LineNoLaTeXOutput' here. 
+\let\TheLineNoLaTeXOutput\LineNoLaTeXOutput
+%%
+%% ==== Tools for Temporary Parameter Changes ====
+%% |\GStoreReg{<register>}|\quad 
+%% (or\quad |\GStoreReg<register>|\\[\smallskipamount]
+%%  when <register> is a single token---\lq`\count0'\rq\
+%%  being a counterexample ...)\quad 
+%% stores the current content of <register> 
+%% (\emph{globally}) as an internal macro so that it can be 
+%% restored later by\\[\smallskipamount] 
+%% |\RestoreReg{<register>}|\quad 
+%%   \mbox{(or\quad }|\RestoreReg<register>|)\\[\smallskipamount]
+%% or \emph{globally} by\\[\smallskipamount] 
+%% |\GRestoreReg{<register>}|\quad (|\GRestoreReg<register>|)
+%% \\[\smallskipamount]
+%% (The OTR runs in a local group!---Recall that assignments 
+%%  to ``special dimens"---\TeX book p.\,271---are 
+%%  automatically global.) 
+%% <register> is something that can be prefixed by `\the'
+%% to read its content and to which you can assign a value 
+%% <value> by \lq<register><value>\rq.
+%% (TODO: could also be some `\catcode'!)
+%% %% and TODO allow changing name space!
+\newcommand*{\GStoreReg}[1]{%
+    \expandafter \xdef \csname GS\string#1\endcsname {\the #1}}
+\newcommand*{\RestoreReg}[1]{#1\csname GS\string#1\endcsname \relax}
+\newcommand*{\GRestoreReg}{\global\RestoreReg}
+%% |\GStoreSetReg{<register>}{<value>}| assigns %%% the new value 
+%% <value> to <register> (locally) after executing `\GStoreSet', 
+%% |\GStoreGSetReg| does the same \emph{globally} 
+%% (and still argument braces aren't needed when a single 
+%%  token refers to the register). 
+\newcommand*{\g@storesetreg}[3]{\GStoreReg{#2}#1#2#3\relax}
+\newcommand*{\GStoreSetReg} {\g@storesetreg\relax}
+\newcommand*{\GStoreGSetReg}{\g@storesetreg\global}
+%% (These preliminaries might go into an own new package, TODO! 
+%%  + loop on list of <register>s ...) %% 2010/12/19
+%%
+%% ==== The basic hook ====
+%% \label{sec:sw}
+%% We use two more penalties triggering the ``MVL swaps:"
+\mathchardef\FNLN@M@swap@codepen  =11113
+\mathchardef\FNLN@M@insert@codepen=11114
+%% v0.41 deals with |\pagebreak| in footnote texts, 
+%% using a flag |\if@FNLN@sw@| that must be set globally. 
+%% %% 2011/01/07:
+%% It turned out not to work properly; however, the new 
+%% switch has served a different purpose for ``continuous 
+%% line numbering," cf. section~\ref{sec:cont}.
+\newif\if@FNLN@sw@  \global\@FNLN@sw@false  %% v0.41
+%% When a `\pagebreak' triggers the OTR while typesetting 
+%% the footnote text, the page content is collected 
+%% in a box |\FNLN@holdft|:
+\newsavebox\FNLN@holdft                     %% v0.41
+%% Using |\LineNoLaTeXOutput| for hooking into the OTR:
+\renewcommand*{\LineNoLaTeXOutput}{%
+  \ifnum\outputpenalty=-\FNLN@M@swap@codepen
+    \SwapFootnoteMain
+  \else
+    \ifnum\outputpenalty=-\FNLN@M@insert@codepen
+      \InsertFootnote
+    \else
+      \if@FNLN@sw@                          %% v0.41
+%        \showthe\outputpenalty     %% 2010/12/20
+        \global\setbox \FNLN@holdft \vbox{%
+          \unvbox\FNLN@holdft 
+%% %% moved here, clarified 2010/12/21:
+%% TODO from v0.41: `\pagebreak[4]' does not seem to force (reliably) 
+%% splitting a footnote; if the footnote is not split here, 
+%% at present the `\baselineskip' is lost,
+%% see the footnote paragraph starting 
+%% with \qtd{C} in `edfndemo.pdf' as of 2010/12/21.
+%% We would need some measuring ... `\pagebreak'
+%% might be redefined ... resembling \LaTeX's `\@specialoutput'!
+          \unvbox\@cclv 
+%% TODO same problem here, see the footnote paragraph starting 
+%% with \qtd{D} in `edfndemo.pdf' as of 2010/12/21.
+          \penalty\outputpenalty}%
+        %% TODO reset page book-keeping!?   %% v0.41
+      \else
+        \TheLineNoLaTeXOutput       %% "the real \LineNoLaTeXOuput"
+      \fi
+    \fi
+  \fi
+}
+%% \strong{An idea:}\quad Instead of so many `\ifnum', use 
+%% \[`\csname<chars>\the\outputpenalty\endcsname'\]
+%% ... in 'lineno.sty', when you really have a broad 
+%% range of `\outputpenalties' useful to be 
+%% described by `\ifnum' range checks ...
+%%
+%% ==== Typesetting the Footnote Text ====
+%% |\SwapFootnoteMain| is the slot of the OTR that our 
+%% modified `\@footnotetext' calls with 
+%% $`\outputpenalty'=-`\FNLN@M@swap@codepen'$.
+%% The ``column so far" is stored in a new box register 
+%% |\FLNL@holdcol|.
+\newsavebox\FNLN@holdcol
+\newcommand*{\SwapFootnoteMain}{%
+    \global \setbox\FNLN@holdcol \vbox{\unvbox\@cclv}%
+%% (... cf. `\@holdpg' in \LaTeX.)
+%%
+%% The entire text of a footnote is typeset on top of 
+%% the MVL. `\vsize' is maximized temporarily to avoid 
+%% that the footnote text is broken across pages. 
+    \GStoreGSetReg\vsize\maxdimen
+%% However, the user may want to use `\pagebreak'
+%% in a footnote in order to control manually where 
+%% a ``long" footnote is split. v0.41 tries to support 
+%% this:
+    \global\@FNLN@sw@true                   %% v0.41
+%% ... cf. Section~\ref{sec:sw}.
+%%
+%% There shouldn't be any `\topskip', the space 
+%% on top of a footnote is controlled by `\footnotesep'
+%% entirely:
+    \GStoreGSetReg\topskip\z@skip
+%% (`\nointerlineskip' as well as setting `\topskip' 
+%%  locally instead fails ... according to `\showlists' ...)
+%%
+%% Resetting |\pagegoal| 
+%% (why doesn't it switch to $`\vsize'=`\maxdimen'$ automatically?), 
+%% |\pagetotal|, and the other ``special dimens" 
+%% (\TeX book p.\,271; rather experimental ... 
+%%  I think it is important to restore them later ...)
+    \GStoreSetReg\pagegoal \vsize
+    \GStoreSetReg\pagetotal\z@
+    \GStoreSetReg\pagestretch\z@
+    \GStoreSetReg\pagefilstretch\z@
+    \GStoreSetReg\pagefillstretch\z@
+    \GStoreSetReg\pagefilllstretch\z@
+    \GStoreSetReg\pageshrink\z@
+    \GStoreSetReg\pagedepth\z@
+%% We must choose certain settings from `\@footnotetext'
+%% such as font:
+    \reset@font\footnotesize
+    \interlinepenalty\interfootnotelinepenalty
+%% \LaTeX's `split' things here are relevant at 
+%% `\insert\footins' only: (TODO!?)
+%     \splittopskip\footnotesep
+%     \splitmaxdepth \dp\strutbox \floatingpenalty \@MM
+    \hsize\columnwidth \@parboxrestore
+%% The previous lines were from \LaTeX's `\@footnotetext'.
+%% Now we need to restore the `\@thefnmark' that belongs 
+%% to the current footnote text. We use a macro that 
+%% tears two items from |\FNLN@list| and executes the 
+%% rest of \LaTeX's `\@footnotetext':
+    \expandafter \FNLN@typeset \FNLN@list \@@
+%     \showthe\vsize
+%% ... so a `\vsize' assignment without `\global' 
+%% is noted here, and an analogous `\topskip' assignment 
+%% is not!? TODO ...
+}
+%% |\FNLN@typeset| first removes something %% reworded 2010/12/26
+%% from the list of footnotes, similarly to \LaTeX's |\@xnext|
+%% and 'lineno''s `\@LN@xnext', then executes a 
+%% remaining portion of \LaTeX's `\@footnotetext'. 
+%% The footnote text may contain `\par' tokens, 
+%% so the definition must be `\long':
+\long\def \FNLN@typeset #1\@lt #2\@lt #3\@@{%
+    \gdef\FNLN@list{#3}%
+    \def\@thefnmark{#1}%
+%% This was our own, and next \LaTeX\ continues:
+    \protected@edef\@currentlabel{%
+       \csname p@footnote\endcsname\@thefnmark
+    }%
+    \color@begingroup
+%% We insert starting the 'lineno' settings ...
+      \linenumbers
+      \setfootnotelinenumbers                   %% 2010/12/25
+%% ... \LaTeX\ again (v0.41 exports dealing with 
+%%  closing `\par' to `finstrut.sty'): 
+      \@makefntext{%
+        \rule\z@\footnotesep\ignorespaces
+%% We replace `#1' by `#2\par' (`\linenumberpar'), 
+%% so we really need `finstrut.sty':
+        #2\par
+        \@finalstrut\strutbox}%
+    \color@endgroup
+%% Now we trigger the ``swap back slot" of the OTR:
+    \penalty-\FNLN@M@insert@codepen
+}
+\RequirePackage{finstrut}
+%% 
+%% ==== &\insert\ the Footnote Text ====
+%% |\InsertFootnote| is the slot of the OTR that executes
+%% `\insert\footins' with the numbered footnote text.
+%% The ``column so far" stored in `\FNLN@holdcol' 
+%% is put onto the top of the MVL, and then parts of 
+%% \LaTeX's `\@footnotetext' are performed that haven't
+%% been done earlier, applied to the footnote text 
+%% that the OTR should have found in `\box255'. 
+%% Before however, the previous `\topskip', `\vsize', and the 
+%% `\page'... book-keeping parameters are restored:
+\newcommand*{\InsertFootnote}{%
+    \GRestoreReg\topskip    \GRestoreReg\vsize
+%% (... \emph{global} restoring of `\vsize' proved vital with 
+%%      'edfndemo' 2010/12/17 ...)
+    \RestoreReg \pagegoal     \RestoreReg\pagetotal
+    \RestoreReg \pagestretch
+    \RestoreReg \pagefilstretch 
+    \RestoreReg \pagefillstretch 
+    \RestoreReg \pagefilllstretch
+    \RestoreReg \pageshrink   \RestoreReg\pagedepth
+    \unvbox\FNLN@holdcol
+    \insert\footins{%
+        \splittopskip\footnotesep
+        \splitmaxdepth \dp\strutbox \floatingpenalty \@MM
+%% Support of `\pagebreak' with v0.41:
+        \unvbox\FNLN@holdft                 %% v0.41
+        \unvbox\@cclv}%
+    \global\@FNLN@sw@false                  %% v0.41
+%% With v0.5, global settings for ``pagewise" numbering
+%% must be restored:                        %% 2010/12/26
+    \unsetfootnotelinenumbers
+}
+%%
+%% === ``Continuous'' Numbering ===
+%% \label{sec:cont}
+%% ==== Goal ====
+%% With v0.5, for the first time we try to get a 
+%% ``pagewise" numbering such that, if a main text line
+%% has a footnote, 
+%% (\textit{i})~its printed number is just the natural 
+%% successor of the printed number of the previous main 
+%% text line 
+%% (instead of continuing previous numbering with the 
+%%  lines of the footnote first), 
+%% and (\textit{ii})~the printed numbers of footnote lines 
+%% just continue the printed numbers of the main text lines.
+%% This ``obvious'' desirement is not easy to achieve; 
+%% already pagewise numbering of main text lines, 
+%% without numbering footnote lines, has been somewhat 
+%% ingenious.
+%%
+%% ==== How to Number Lines Pagewise ====
+%% The basic idea of 'lineno''s pagewise numbering is:
+%% \begin{enumerate}
+%%   \item Each numbered line of the document is identified 
+%%         by a unique counter value, an ``absolute" number.
+%%   \item For each page (and column), the range of absolute 
+%%         line numbers occurring on them is recorded 
+%%         (or actually: the first and the last number). 
+%%   \item The ``public," ``human-readable" (``pagewise") 
+%%         format of a given absolute line number $l$ is generated by 
+%%         (\textit{i})~finding the page (and column) with 
+%%         first number $n$ and last number $k$ such that 
+%%         $n\leq l\leq k$, 
+%%         (\textit{ii}) ``printing" $l-n+1$ in ``columnwise"
+%%         mode, otherwise $l-m+1$ where $m$ is the first 
+%%         absolute line number in the left-hand column of the 
+%%         same page.
+%% \end{enumerate}
+%% \strong{Generating} the ``pagewise" representation for a 
+%% given absolute line number $l$ thus may be summarized as 
+%% \emph{finding the corresponding \emph{\strong{offset}} value} 
+%% to be subtracted ($n$, $n+1$, $m$, or $m+1$ ...).
+%%
+%% When \emph{footnote} lines are to be numbered as well, 
+%% a little problem is the order in which main text and 
+%% footnote lines increment the absolute counter. 
+%% 'lineno''s mechanism for this is started immediately 
+%% after a paragraph has been broken into lines. 
+%% Each line of the paragraph then calls a macro 
+%% generating the line number. 'fnlineno' now interrupts 
+%% numbering of main text lines at a line issuing a footnote. 
+%% The footnote text is typeset, including numbering its 
+%% lines at each end of a footnote paragraph. When the 
+%% footnote text has been sent into the `\insert' register, 
+%% numbering of main text lines is resumed. 
+%% 
+%% Up to v0.4 (a development version), we used the \emph{same} 
+%% absolute counter for main text and footnote lines. 
+%% When a page $p$ has more than one main text line and the first 
+%% one has a long footnote continued on the next page~$p+1$, 
+%% there is no ``range" of absolute line numbers 
+%% characterizing page~$p$ any more, 
+%% because the greatest absolute line number of page~$p$ 
+%% exceeds the absolute line numbers of the footnote continued 
+%% on page~$p+1$.
+%%
+%% 'lineno''s procedure can be revived by numbering 
+%% main text lines and footnote lines independently 
+%% from each other. We use \emph{two} absolute counters, 
+%% one is incremented with main text lines only, 
+%% the other with footnote lines only. 
+%% Numbering of main text lines just will not be affected 
+%% by numbering of the footnote lines. 
+%%
+%% Almost the same will hold for footnote lines. 
+%% Each page (and column) will have a characteristic 
+%% ``range" of absolute footnote line numbers $\{n,\dots,k\}$. 
+%% The only notable difference will be that for footnote line~$l$ 
+%% we print $(l-n+1)+(K-N+1) = (K+l)-(N+n)+2$ instead of 
+%% $l-n+1$---where $\{N,\dots,K\}$ is the range of \emph{main text}
+%% line numbers of the page (and column). 
+%% 
+%% The previous discussion of \strong{generating} the printed 
+%% line number from its absolute version 
+%% has assumed that corresponding \strong{offset} values 
+%% have been given somehow, or that the ``line number ranges" 
+%% for pages are known from somewhere. 
+%% In fact, these ranges are \strong{computed} at the 
+%% \strong{start} of a \LaTeX\ run \emph{before} typesetting, 
+%% when reading the `.aux' file for the first 
+%% time. They are used in the entire document. 
+%% While typesetting, each numbered line of main text leaves 
+%% a record of its absolute number and page number in the new 
+%% version of the `.aux' file that the run creates, 
+%% a two-parameter macro `\@LN'. With 'fnlineno.sty', 
+%% there will be new `\@FLN' entries of the same type. 
+%% These `.aux' entries are used for building 
+%% the page range data for the next run. 
+%% When the document source has been changed, at least 
+%% \emph{two runs} will usually be required 
+%% to get correct line numbers in page margins, 
+%% and \emph{another} run will be needed so references 
+%% to line numbers by `\ref' and `\linelabel' are correct. 
+%% 
+%% ==== Summary of Changes ====
+%% Variants of 'lineno.sty''s code for ``pagewise" 
+%% numbering are following. Sometimes we generalize
+%% `pagewise' stuff from 'lineno' and re-implement pagewise 
+%% numbering of main text lines as a special case, 
+%% the other special case being numbering of footnote lines.
+%% 
+%% Five things need modifications:
+%% \begin{description}
+%%   \item[Building page info macros:] 
+%%      Processing `\@LN' and `\@FLN' `.aux' entries will 
+%%      use shared building macros, the difference is 
+%%      obtained by switching \strong{name spaces}. 
+%%      (It may be notable that a page may get one 
+%%       info macro for main text and another for 
+%%       footnote text, if it contains footnote text.)
+%%   \item[Logging:]
+%%      While typesetting, the shared logging macro 
+%%      is switched to write either `\@LN' or `\@FLN' 
+%%      to the `.aux' file. Also, `\c@linenumber' 
+%%      may refer to either the main text or to the 
+%%      footnote text counter. 
+%%   \item[Generating ``pagewise" format:]
+%%      The choice of `\c@linenumber' also determines 
+%%      which counter is incremented, and again 
+%%      name spaces for page info macros are switched. 
+%%      For footnote lines, 
+%%      a tail macro for adding the number of main text lines 
+%%      will be activated.
+%%   \item[Referencing:]
+%%      The `.aux' file may have entries from `\linelabel'
+%%      containing large numbers from an ``absolute" counter.
+%%      In generating the ``human-readable" number, 
+%%      it must be known whether it is a main text or a 
+%%      footnote line number. 
+%%      %% 2010/12/28:
+%%      An additional complication is referring to a 
+%%      main text line from a footnote and vice versa---thinking 
+%%      of global changes in generating the number.
+%%      Or even think of the case referring from unnumbered text 
+%%      to numbered text!
+%%      (I have wondered before if the entry couldn't be 
+%%       the ready human-readable number, TODO!)
+%%   %% 2010/12/27:
+%%   \item[Lists of ``vertical tasks":]
+%%      'lineno.sty' (v4) has introduced two lists of 
+%%      tasks that were issued in horizontal mode
+%%      but only can be completed after breaking a paragraph 
+%%      into lines: one for `\linelabel's and one for `\vadjust' 
+%%      items that must wait until the line number has been 
+%%      attached. It is essential that the tasks are processed 
+%%      in the same order in vertical mode as they were 
+%%      issued in horizontal mode. As we are now interrupting 
+%%      processing of main text paragraphs for processing 
+%%      footnotes, tasks for footnote text must be lined up 
+%%      in separate lists than tasks for main text. 
+%%      This is indeed essential for the previous issue 
+%%      of getting `\linelabel' work in footnotes as well 
+%%      as in main text.
+%% \end{description}
+%% 
+%% ==== Info Building ====
+%% % These macros 
+%% |\@LN|, |\@FLN|, and |\@FNLN|
+%% are processed at reading the `.aux' file before typesetting only. 
+%% The \strong{interface} to \strong{generating} 
+%% ``pagewise" and footnote line numbers just are |\LN@Pfirst|
+%% and |\FLN@Pfirst|, eventually pointing to the first page/column 
+%% with numbered main text lines or footnote lines, resp.
+\def \FLN@Pfirst {\nextLN\relax}
+%% This initialization of `\FLN@Pfirst' is just the same 
+%% as the one of `\LN@Pfirst' in 'lineno.sty'; 
+%% their expansions are changed as soon 
+%% as such a page is found, replacing the `\relax' by the
+%% corresponding page info macro. 
+%% 
+%% `\LN@Pfirst' and `\FLN@Pfirst' are passed to 
+%% |\testFirstNumberedPage| via the hook |\FNLN@first@numbered|
+%% that by default is the same as `\LN@first':
+\def \FNLN@first@numbered {\LN@Pfirst}
+%% (oh, it must be `\def' here to recognize the change ...).
+%% This must be changed by `\setfootnotelinenumbers' 
+%% (`\let' then, as when called the change will have happened). 
+%%
+%% Moreover, they are passed to |\NumberedPageCache| 
+%% (the page info macro where a search starts, 
+%%  ``current" page/column) as its initialization; 
+%% the ``generating" macros then change the 
+%% latter macro following `\nextLN' in the page info macros.
+%%
+%% In this sense, no other ``name space switching" is needed 
+%% for communication with other functions.
+%% 
+%% 'lineno.sty' has changed |\LastNumberedPage| globally ...
+%% the last page with numbered \emph{footnote} lines 
+%% may well be another one than the last page with 
+%% numbered \emph{main} text lines ... 
+%% But fortunately, also `\LastNumberedPage'
+%% is needed in reading the `.aux' before typesetting only
+%% (`\@onlypreamble' is \LaTeX's disabling command):
+\@onlypreamble\LastNumberedPage
+%% In 'lineno.sty', we have `\def\LastNumberedPage{first}'. 
+%% We need the same for the footnote variant |\FNLN@last@numbered| 
+%% (to be handled globally!): 
+\global   \let \FNLN@last@numbered \LastNumberedPage
+\@onlypreamble \FNLN@last@numbered
+%% |\@FNLN{<names>}<last-numbered>{<line>}{<page>}|
+%% \\[\smallskipamount]
+%% generalizes 'lineno.sty''s `\@LN{<line>}{<page>}' 
+%% to re-implement it. 
+%% There is an additional parameter argument <names> 
+%% for choosing name spaces
+%% and a parameter <last-numbered> for choosing the macro 
+%% storing the ``last numbered page."
+%% (An argument without braces expects a macro name.)
+\newcommand* \@FNLN [4]{{%
+    \expandafter\@@LN
+        \csname #1#4C\@LN@column \expandafter\endcsname
+        \csname #1O#4\endcsname
+        {#3}{#4}{#1}{#2}}}
+\@onlypreamble\@FNLN
+%% As in 'lineno.sty' `\@LN' calls `\@@LN', a new variant 
+%% of `\@@LN' is called by `\@FLN' here, but it gets one
+%% additional parameter for passing <names> 
+%% and another for passing <last-numbered> from `\@FLN'. 
+%% So the new syntax is\\[\smallskipamount] 
+%% |\@@LN<info><first-page-line>{<line>}{<page>}{<names>}<last-numbered>|:
+\renewcommand* \@@LN [6]{% 
+  \ifx#1\relax
+    \ifx#2\relax\gdef#2{#3}\fi
+    \expandafter\@@@LN\csname #5#6\endcsname#1% 
+    \xdef#1{\lastLN{#3}\firstLN{#3}% 
+            \pageLN{#4}{\@LN@column}{#2}\nextLN\relax}%
+  \else
+    \def\lastLN##1{\noexpand\lastLN{#3}}%
+    \xdef#1{#1}%
+  \fi
+  \xdef#6{#4C\@LN@column}}
+\@onlypreamble\@@LN
+%% 'lineno.sty''s |\@@@LN| does not need any adjustment.
+%% 
+%% 'lineno.sty''s |\@LN{<line>}{<page>}| is reimplemented as 
+\def \@LN {\@FNLN{LN@P}\LastNumberedPage} 
+%% ---so `\@LN' really does the same as before, including name spaces. 
+%% 
+%% |\@FLN{<line>}{<page>}| is the other special case of the 
+%% new `\@FNLN'---an `F' precedes the earlier names, and 
+%% |\FNLN@last@numbered| is the storing macro initialized above:
+\def \@FLN {\@FNLN{FLN@P}\FNLN@last@numbered}
+%% For logging, we make both unexpandable: %% 2010/12/27 
+% \AtBeginDocument{\let\@LN\relax \let\@FLN\relax}
+%% ... but this way nothing appears in the file!? TODO ...
+\@onlypreamble\@LN  \@onlypreamble\@FLN
+%% For reading the `.aux' finally, we do what 
+%% 'lineno' does with `\@LN':
+\AtEndDocument{\let\@FLN\@gobbletwo}
+%%
+%% ==== Tool for Reusing Global Operations with Macros ==== 
+%% %% 2010/12/28
+%% 'lineno.sty' v4 provides list handling (changing lists globally) 
+%% and global changes of `\NumberedPageCache'. 
+%% We want to use them in ``main text" mode 
+%% as well as in ``footnote" mode. 
+%% To use such an operation on <ln-macro> for <fln-macro>, 
+%% we `\global\let<ln-macro><fln-macro>', apply the operations, 
+%% and finally `\global\let<fln-macro><ln-macro>'. 
+%% However, we are not only interested in how <fln-macro> 
+%% is changed this way, rather <ln-macro> also is used as input 
+%% for some operations, and we can choose which <fln-macro> 
+%% should be used as input. To switch from working on/with 
+%% <fln-1> to <fln-2>  using <ln-macro> with an option 
+%% to use <fln-1> later again, a tool 
+%% |\GStoreUse<ln-macro><fln-1><fln-2>| is provided 
+%% (should render later switchings much better readable):
+\newcommand* \GStoreUse [3]{\global\let#2#1\global\let#1#3}
+%% I.e., current content of #1 is stored in #2, then 
+%% #1 attains the content of #3.
+%% 
+%% ==== General Settings for Typesetting Stage ====
+%% % %% 2011/01/01: %% 2011/01/02: wrong!
+%% % With 'ednotes', it turns out that the heading is not quite 
+%% % correct, 'ednotes'' special `\newlabel' mechanism evaluates 
+%% % `\getpagewiselinelabel' already for building its note 
+%% % info macros at the first reading of the `.aux' file. 
+%%
+%% %% 2010/12/27:
+%% Oh my dear, it seems that all the switching 
+%% for the footnote variant of `pagewise' must be global 
+%% (I can't find something useful using `\aftergroup' quickly).
+%% Therefore, I render 'lineno''s |\setpagewisenumbers|
+%% acting globally:
+\renewcommand*\setpagewiselinenumbers{%
+   \global\let \theLineNumber  \thePagewiseLineNumber
+   \global\let \c@linenumber   \c@pagewiselinenumber
+   \global\let \makeLineNumber \makePagewiseLineNumber
+}
+%% I just force this, hehe ...
+\setpagewiselinenumbers
+%% As a counterpart to `\c@pagelinenumber', 
+%% |\c@footnotelinenumber| is reserved for the 
+%% absolute footnote line numbers:
+\newcount\c@footnotelinenumber
+%% %% 2011/01/01 severe-bug fix, why didn't show up?:
+%% |\FNLN@@cache| stores `\NumberedPageCache' 
+%% as from ``main" mode:
+\let \FNLN@@cache \NumberedPageCache
+%% |\FNLN@cache| stores `\NumberedPageCache' 
+%% as from ``footnote" mode; its initial content is the 
+%% counterpart or analogue to `\LN@Pfirst':
+\def \FNLN@cache {\FLN@Pfirst}
+%% %% 2010/12/28:
+%% |\FNLN@foot@cache| and |\FNLN@main@cache|
+%% switch |\NumberedPageCache|:
+\def \FNLN@foot@cache {%
+    \GStoreUse \NumberedPageCache \FNLN@@cache \FNLN@cache}
+\def \FNLN@main@cache {%
+    \GStoreUse \NumberedPageCache \FNLN@cache \FNLN@@cache}
+%% |\FNLN@labels| will be the counterpart to
+%% 'lineno.sty''s `\@LN@labellist':
+\global\let \FNLN@labels \@empty
+%% |\FNLN@vadjusts| will be the counterpart to
+%% 'lineno''s `\@LN@vadjustlist':
+\global\let \FNLN@vadjusts \@empty
+%% %% separation for referencing 2010/12/28:
+%% Settings for footnote line numbers first resemble
+%% `\setpagewiselinenumbers'; but more changes 
+%% are needed, and results from main text numbering 
+%% must be stored. 
+%% Some of the settings are needed \emph{locally} for 
+%% generating numbers for labels, collected in 
+%% |\setgetfootnotelinenumbers|; for this purpose
+%% nothing must be stored explicitly:
+\newcommand* \setgetfootnotelinenumbers {% 
+%% Change of `\theLineNumber' is omitted as we are \emph{reading},
+%% not writing a label. 
+    \let\c@linenumber\c@footnotelinenumber
+%     \let\makeLineNumber\makeFootnoteLineNumber
+%% But in fact, |\makeFootnoteLineNumber| and
+%% |\makePagewiseLineNumber| will be the same. 
+%% The difference is made by the choice of 
+%% |\FNLN@first@numbered| and |\NumberedPageCache| 
+%% for the line range searches. 
+    \let \FNLN@first@numbered \FLN@Pfirst
+    \let \FNLN@finish \FNLN@add
+}
+%% |\setfootnotelinenumbers| performs all the settings 
+%% for typesetting footnotes in line numbering mode 
+%% \emph{globally}, 
+%% including storing results from typesetting main text:
+\newcommand* \setfootnotelinenumbers {% 
+  \globaldefs\@ne
+%% The previous line also renders `\setgetfootnotelinenumbers' global:
+    \setgetfootnotelinenumbers
+%% |\theLineNumber| is used for `\linelabel' entries. 
+%% `\thePagewiseLineNumber' is replaced by
+%% |\theFootnoteLineNumber|:
+    \let\theLineNumber\theFootnoteLineNumber
+%% Logging to `.aux':
+    \def \FNLN@log {\string\@FLN}% 
+%% %% 2010/12/28:
+%% Starting range search: |\NumberedPageCache|
+    \FNLN@foot@cache
+%% Reusing 'lineno''s task list operations:
+    \GStoreUse \@LN@labellist \FNLN@@labels \FNLN@labels
+    \GStoreUse \@LN@vadjustlist \FNLN@@vadjusts \FNLN@vadjusts
+  \globaldefs\z@
+}
+%% For switching back to ``main text mode," 
+%% again some settings may need a local variant---for 
+%% processing line references from footnotes to main text!
+%% This is the purpose of |\setgetpagewiselinenumbers|:
+\newcommand* \setgetpagewiselinenumbers {%
+    \let \FNLN@first@numbered \LN@Pfirst
+    \let \FNLN@finish         \@gobbletwo
+}
+%% |\unsetfootnotelinenumbers| stores the ``current" 
+%% page with footnote lines and loads the ``most recent" 
+%% page with main text lines---and more ...:
+\newcommand* \unsetfootnotelinenumbers {%
+    \gdef \FNLN@log {\string\@LN}%
+    \FNLN@main@cache
+%% Task lists: %% 2010/12/28
+    \GStoreUse \@LN@labellist \FNLN@labels \FNLN@@labels
+    \GStoreUse \@LN@vadjustlist \FNLN@vadjusts \FNLN@@vadjusts
+    \globaldefs\@ne \setgetpagewiselinenumbers \globaldefs\z@ %% v0.53
+    \setpagewiselinenumbers
+}
+%% |\makeFootnoteLineNumber| actually only copies 
+%% |\makePagewiseLineNumber|, different results are obtained 
+%% be changing hooks. The command first calls 
+%% logging---|\logtheLineNumber|, 
+%% then generating the ``public" line number---|\getLineNumber| 
+%% (which in turn only is a copy of |\testNumberedPage| 
+%%  in 'lineno.sty').
+\@ifdefinable\makeFootnoteLineNumber
+    {\let \makeFootnoteLineNumber \makePagewiseLineNumber}
+%%
+%% ==== Logging ====
+%% |\logtheLineNumber| is redefined to log both 
+%% main text and footnote line numbers. 
+\def \logtheLineNumber {%
+    \protected@write\@auxout{}{%
+        \FNLN@log{\the\c@linenumber}{\noexpand\the\c@LN@truepage}}} 
+%% |\FNLN@log| is the hook for the difference, 
+%% its default expansion |\@LN| is made for 
+%% \emph{main text} line numbers:
+\gdef \FNLN@log {\string\@LN}
+%%
+%% ==== ``Public" Line Numbers ====
+%% Fortunately, these commands don't need to know much about 
+%% name spaces. The interfaces to them are 
+%% |\NumberedPageCache|---changing globally---and 
+%% |\FNLN@first@numbered|. Our 
+%% |\FNLN@cache| is initialized 
+%% by analogy to its counterpart `\NumberedPageCache'
+%% (a minute name space change):
+\def \FNLN@cache {\FLN@Pfirst}
+%% |\testFirstNumberedPage{<integer>}| from 'lineno.sty'
+%% is modified by replacing `\LN@Pfirst' only:
+\renewcommand* \testFirstNumberedPage [1]{%
+  \ifnum#1>\c@linenumber
+     \def\nextLN##1{%
+        \testNextNumberedPage\FNLN@first@numbered}%
+  \else
+     \let\nextLN\@gobble
+     \def\pageLN{\gotNumberedPage{#1}}%
+  \fi}
+%% |\testNumberedPage| and |\testNextNumberedPage| from 'lineno'
+%% don't need any modification. |\testLastNumberedPage|
+%% is modified in 'edfnotes.sty'.   %% 2011/01/07
+%%
+%% |\gotNumberedPage| just needs a closing hook 
+%% `\FNLN@finish' to allow for footnote lines.
+\renewcommand* \gotNumberedPage [4]{%
+  \oddNumberedPagefalse
+  \ifodd \if@twocolumn #3\else #2\fi\relax\oddNumberedPagetrue\fi
+  \advance\c@linenumber\@ne 
+  \ifcolumnwiselinenumbers
+     \subtractlinenumberoffset{#1}%
+  \else
+     \subtractlinenumberoffset{#4}%
+  \fi
+%  \show\FNLN@finish
+  \FNLN@finish{#2}{#3}%
+}
+%% |\FNLN@finish{<page>}{<column>}| gobbles both 
+%% arguments with \emph{main} text lines, 
+%% but will add the number of main text lines to 
+%% \emph{footnote} line numbers:
+\global\let \FNLN@finish \@gobbletwo
+%% Then it will act as |\FNLN@add|. We run the page info macro 
+%% for the same page (column; if defined).
+\newcommand* \FNLN@add [2]{%
+  \expandafter \let\expandafter \@tempa\csname LN@P#1C#2\endcsname
+  \ifx\@tempa\relax
+  \else
+    \advance\c@linenumber\@ne
+    \ifcolumnwiselinenumbers
+      \let\firstLN\subtractlinenumberoffset
+%% ... rather assuming `\realpagewiselinenumbers'.
+      \let\pageLN\@gobblethree
+    \else
+      \let\firstLN\@gobble
+      \def\pageLN##1##2##3{\subtractlinenumberoffset{##3}}%
+    \fi
+    \def\lastLN##1{\subtractlinenumberoffset{-##1}}%
+    \let\nextLN\@gobble
+%% ... TODO all needed?
+    \@tempa
+  \fi
+}
+%%
+%% ==== Referencing ====
+%% Now that we are using two separate counters for main text lines 
+%% and footnote lines (v0.5), correct references to footnote lines 
+%% using |\linelabel| and `\ref' need further adjustments.
+%% %
+%% 'lineno.sty''s `\thePagewiseLineNumber'
+%% and `\getpagewiselinenumber{<integer>}'
+%% are generalized and re-implemented
+%% % by |\theWiseLineNumber| and |\getwiselinenumber|
+%% by macros that then serve to implement 
+%% referring to footnote line numbers. 
+%%
+%% |\theWiseLineNumber{<trans>}| leaves a `\protect'ed call 
+%% to a one-parameter macro <trans> in the `.aux' file:
+\newcommand* \theWiseLineNumber [1]{\protect #1{\the\c@linenumber}} 
+%% |\getwiselinenumber{<choice>}{<integer>}| executes <choice> 
+%% before applying `\testNumberedPage' to <integer>---within 
+%% a local group:
+\newcommand* \getwiselinenumber [2]{{%
+%% Some wisdom is needed to take account of the current 
+%% ``numbering state" from which `\ref' was called.
+%% \begin{description}
+%%   \item[Referring to main text line:]\leavevmode
+%%     \begin{itemize}
+%%       \item Unless called from numbered footnote, 
+%%             no extra care is needed.
+%%       \item If called from numbered footnote, 
+%%             `\setgetpagewiselinenumbers'
+%%             and temporary switching of `\NumberedPageCache'
+%%             is needed.
+%%     \end{itemize}
+%%   \item[Referring to footnote line:]\leavevmode
+%%     \begin{itemize}
+%%       \item If called from numbered footnote, 
+%%             no extra care is needed. 
+%%       \item Otherwise, `\setgetfootnotelinenumbers'
+%%             and temporary switching of `\NumberedPageCache'
+%%             is needed.
+%%     \end{itemize}
+%% \end{description}
+  \ifx#1\relax          %% to main text
+    \if@FNLN@sw@        %% from footnote
+      \setgetpagewiselinenumbers
+      \FNLN@main@cache
+      \let \FNLN@restore@cache \FNLN@foot@cache
+    \fi
+  \else                 %% to footnote
+    \if@FNLN@sw@ \else  %% from elsewhere
+      #1%
+      \FNLN@foot@cache
+      \let \FNLN@restore@cache \FNLN@main@cache
+    \fi
+  \fi
+  \c@linenumber #2\relax\testNumberedPage
+  \thelinenumber
+  \FNLN@restore@cache
+}}
+\let \FNLN@restore@cache \relax
+%% |\getpagewiselinenumber| doesn't need any <choice>---we 
+%% assume that the label was written in the default `pagewise' 
+%% mode (but it is difficult, though, `\relax' is essential!):
+% \renewcommand* \getpagewiselinenumber {\getwiselinenumber\relax} %!! 
+%% 2010/12/31, a compatibility problem with 'ednotes'' `\newlabel' 
+%% mechanism shows up. 'ednotes' ``undefines" `\getpagewiselinenumber' 
+%% and restores it only `\AtBeginDocument'. We must ensure that 
+%% 'ednotes' will not override our new version of 
+%% `\getpagewiselinenumber'. 
+%% (TODO in my view another motivation to write ``ready" numbers 
+%%  without `\getpagewiselinenumbers' directly.)
+%%
+%% We might assume that 'ednotes' (if at all) is loaded directly 
+%% and loads 'lineno.sty' 
+%% (that is the usual and recommended way of using 'ednotes') 
+%% and that this will happen before 'fnlineno.sty' is loaded. 
+%% But now that we have spent some time understanding the 
+%% situation, we can deal with the case as well that 'lineno.sty' 
+%% is loaded first, then 'fnlineno.sty' is loaded, and then 'ednotes'. 
+%% (I have assumed earlier that 'fnlineno.sty' is loaded after 
+%%  'lineno.sty' ...)
+\AtBeginDocument{%
+    \def \getpagewiselinenumber {\getwiselinenumber\relax}% sic!
+    \let \@EN@getpagewiselno \getpagewiselinenumber}
+%% For |\thePagewiseLineNumber|, <trans> is `\getpagewiselinenumber':
+\renewcommand* \thePagewiseLineNumber {%
+    \theWiseLineNumber\getpagewiselinenumber}
+%% |\getfootnotelinenumber{<integer>}| considers <integer> 
+%% the absolute number of a \emph{footnote} line. The <choice>
+%% therefore is `\setgetfootnotelinenumbers':
+\newcommand* \getfootnotelinenumber {%
+    \getwiselinenumber\setgetfootnotelinenumbers}
+%% Finally, |\theFootnoteLineNumber| is how `\linelabel'
+%% refers to a \emph{footnote} line. `\theWiseLineNumber'
+%% is called with <trans> being `\getfootnotelinenumber':
+\newcommand* \theFootnoteLineNumber {%
+    \theWiseLineNumber\getfootnotelinenumber}
+%% 
+%% === Leaving the Package File ===
+\endinput
+%%
+%%  == Acknowledgements == 
+%% %% 2010/12/19
+%% On the 'texhax' mailing list, Boris Veytsman recommended 
+%% using Victor \mbox{Eijk}\-hout's \textit{\TeX\ by Topic} to me, 
+%% and Andrej Lapshin pointed me to David Salomon's work 
+%% on output routines 
+%% (TUGboat 1990 and 1994, also available as a book, 
+%%  as Ulrich Dirr tells me).
+%% It helped me a lot to read about output routines 
+%% in these works, beyond the \TeX book. 
+%% The abbreviations \lq OTR\rq\ and \lq MVL\rq\ are 
+%% Salomon's.---And %% added 2010/12/27
+%% recall Christian's work and support 
+%% by the DFG named at the start of the package file.---And 
+%% ... the ideas of how to implement 
+%% (\textit i)~attaching line numbers, 
+%% (\textit{ii})~`\linelabel', and 
+%% (\textit{iii})~numbering lines ``pagewise"---so flexibly, 
+%% compatibly with many other \LaTeX\ packages, still 
+%% are Stephan's ...
+%% 
+%%  == VERSION HISTORY ==
+v0.1    2010/12/08  very first, \linelabel works in footnote 
+        SENT TO Christian, problems with "long" footnotes
+
+v0.2    2010/12/08  corr. "manifoot"
+        2010/12/09  moving doc. from .tex to here, 
+                    different doc. sectioning;
+                    \@footnotetext modified (user feature!); 
+                    \@doclearpage NOT modified!; \if@FNLN@placing@
+        2010/12/10  ignore dummy footnote split; 
+                    \FNLNpar, \AutoPars, \ExplicitPars, 
+                    more on limitations
+        2010/12/11  more trying, almost anew ...
+        JUST STORED
+
+v0.3    2010/12/12  new approach, removed much before proceeding
+        2010/12/13  -- this was putting \box\footins onto MVL, 
+                    bad with those penalties
+        JUST STORED
+
+v0.4    2010/12/14  another new approach: 
+                    typeset footnote on MVL immediately -- 
+                    described strategy
+        2010/12/15  ... continued, choice of hooking into \output 
+                    (...swap...)
+        2010/12/16  ... continued; rearranged sections ... 
+                    \FNLN@@fntext vs. ...ltx...
+        2010/12/17  success with \pagegoal ...; \GStoreReg etc.; 
+                    ...@fntext shortened 
+        2010/12/18  another two limitations: \pagebreak in fn., 
+                    guessed/tested; another note to <register>; 
+                    ack. Christian; directed -> organized!?
+        SENT TO Christian/Stephan
+
+v0.41   2010/12/19  support of \pagebreak with \if@FNLN@sw@ etc.; 
+                    TODO on lists of <register>s
+        2010/12/20  debugging: \if...true; \setbox...ft;
+                    \@finalstrut in vmode exported to finstrut.sty; 
+                    notes on how v0.41 still fails with \pagebreak
+        2010/12/21  additional notes on *two* \pagebreak's
+
+v0.5    2010/12/21  restructuring doc., check@latex@ -> check@,
+                    own account of lineno's pagewise mode
+        2010/12/22  ... continued ...
+        2010/12/23  ... continued ...
+        2010/12/24  ... continued ...
+        2010/12/25  moved this to pwlineno, replaced ...
+                    more on \FNLN@typeset, + \setfootnotelinenumbers
+        2010/12/26  new summary of implementation, 
+                    rearranged code sections; logging settled
+v0.51   2010/12/27  "build" settled, typesetting, logging reformated;
+                    ack.s: "recall"; all settings global, 
+                    "public" works
+        JUST STORED, MARGINAL NUMBERS OK, 
+        \linelabel in footnote broken
+        [2010/12/28] 
+v0.52   2010/12/28  own label and vadjust lists for footnotes; 
+                    local settings for referencing, 
+                    tool and care for global changes (...Cache)
+                    (TODO write ready in .aux? needs another run)
+        \linelabel's ok, MARGINAL NOTES MAIN BROKEN
+v0.53   2010/12/28  debugging; OK; minor doc. modifications; 
+                    less "limitations"; \\[\smallskipamount]
+        TO CHRISTIAN 2010-12-29
+v0.54   2010/12/31  typo options; \FNLN@text without arg, 
+                    \getpagewiselinenumber with ednotes
+        2011/01/01  \FNLN@cache, \FNLN@@cache initialized; 
+                    doc. "Typesetting Stage" qualification
+        2011/01/02  that qualification was wrong
+        2011/01/03  samepage@hook
+        TO CHRISTIAN SAME DAY
+v0.55   2011/01/04  samepage@hook emptied here as well; 
+        2011/01/06  edited version history
+        2011/01/07  note on \if@FNLN@sw@ with v0.5; 
+                    finally without support for samepage@hook!
+                    note on \testLastNumberedPage
+        PART OF EDFN RELEASE r0.5 (together with edfnotes v0.2)
+v0.55a  2011/02/09  corr. owner; "Limitations" updated; \pagebreak 
diff --git a/Master/texmf-dist/tex/latex/lineno/vplref.sty b/Master/texmf-dist/tex/latex/lineno/vplref.sty
index 51dd815bd48..d3b0697f131 100644
--- a/Master/texmf-dist/tex/latex/lineno/vplref.sty
+++ b/Master/texmf-dist/tex/latex/lineno/vplref.sty
@@ -1,7 +1,7 @@
 %% `vplref.sty' 
 %% -- extended line number referencing with lineno.sty. 
 
-\def\filedate{2005/04/25} \def\fileversion{0.2}
+\def\filedate{2005/04/25} \def\fileversion{0.2a}
 
 %% Copyright (C) 2004, 2005 Uwe Lueck, 
 %% http://contact-ednotes.sty.de.vu --author-maintained 
@@ -38,7 +38,8 @@
 %% IMPLEMENTATION: 
 
 \NeedsTeXFormat{LaTeX2e}[1994/12/01] %% \Declare...* 
-\ProvidesPackage{vplref}[\filedate\space v\fileversion] 
+\ProvidesPackage{vplref}[\filedate\space v\fileversion \space
+                         page-line cross-refs] %% UL 2011/02/13
 
 \AtBeginDocument{\RequirePackage{lineno,varioref}} 
 
@@ -69,4 +70,5 @@ v0.1   2004/10/19  First, sent to Sergei Mariev.
 v0.11  2004/10/19  Fit to recent varioref version; 
                    sent to Sergei. 
 v0.2   2005/04/25  \Require... \AtBeginDocument. 
+v0.2a  2011/02/13  add. caption to \ProvidesPackage