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%% MFParPtc.sty---Uwe L"uck http://www.contact-ednotes.sty.de.vu.
%% Modifies Alexander Rozhenko's manyfoot.sty.
%%
%% Copyright (C) 2003--2006 by Uwe L"uck--author-maintained.
%%
%% 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.
%%
%
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{mfparptc}[2006/06/26 v0.41 %% TODO
^^J\string"patch\string" for manyfoot.sty's paragraph footnotes
(ul)]
%
% The paragraphed-footnote style of Alexander Rozhenko's manyfoot.sty
% derives, like the same style of Dominik Wujastyk's and John
% Lavagnino's EDMAC.doc, from Donald Knuth's proposal on pp.
% 398--400 of the TeXbook. However, the two packages improve this
% proposal in different respects. EDMAC (i) adds to the TeXbook
% macros penalties solving a page breaking problem and (ii) accounts
% for some problems of line breaking and hyphenation in the
% footnotes (see EDMAC.doc, Section
% `Footnotes'--`Paragraphed footnotes'). manyfoot.sty does not deal
% with these things.
%
% The present version of the "patch" rearms the latter with EDMAC's
% remedies (maybe at the cost of \linebreak and \\, see below).
%% TODO
% We aim at manyfoot.sty v1.4 from 1998/12/19.
%
% Alex and me could not convince ourselves entirely of these
% "patches". They are *experimental*. When we have made up our minds,
% they may become part of other packages.
%
% Indeed, the present "patches" disable the \SplitNote macro
% from manyfoot.sty. So you have to choose between \SplitNote
% (not loading present package) and the EDMAC enhancements
% (loading the present package).
%
% --If you want to use this package for working with ednotes.sty,
% load the latter with option `edmacpara'--this loads the
% present file at a suitable time. This is useful only unless
% only `plain' options of `ednotes.sty' are called.
% --If you don't work with ednotes.sty and want to use the present
% file only for modifying manyfoot functionality, load the present
% file after manyfoot.sty has been loaded. This is useful only if
% some footnote layer has been declared with option `para' or
% `para*'.
%
% Implementation:
%
%% Note: \Requirepackage[...]{manyfoot} would cause option clash.
%
% \MFL@fnotepara expected:
% (Also tests whether manyfoot.sty has been loaded with option
% `para' or `para*'.)
\CheckCommand*\MFL@fnotepara[3]{\let\@thefnmark\@empty
\NCC@makefnmark{#2}%
\MFL@insert#1{\reset@font\footnotesize
\ifx\@thefnmark\@empty \@tempswafalse \else
\@tempswatrue
\protected@edef\@currentlabel{\@thefnmark}%
\fi
\color@begingroup
\if@tempswa
\setbox\@tempboxa\hbox{\@makefnmark}%
\ifMFL@paraindent
\@tempdima.8em \advance\@tempdima-\wd\@tempboxa
\ifdim \@tempdima<\z@ \@tempdima\z@ \fi
\else
\@tempdima\z@
\fi
\fi
\setbox\@tempboxa\hbox{%
\if@tempswa
\hskip\@tempdima\unhbox\@tempboxa\nobreak
\fi
\ignorespaces#3\unskip\strut
\ifMFL@split \penalty\m@ne\space \else
\penalty-10 \hskip\footglue
\fi
}%
\dp\@tempboxa\z@ \ht\@tempboxa\MFL@fudgefactor\wd\@tempboxa
\box\@tempboxa
\color@endgroup
}%
}
% For splitting footnote paragraphs EDMAC inserts a (low) \penalty
% after \box\@tempboxa at Wayne Sullivan's suggestion, see
% EDMAC.doc after \def\para@vfootnote.
% Another patch is needed to get \language whatsit nodes and
% \discretionary's---cf. EDMAC.doc's description of \para@vfootnote.
% This is due to Michael Downes, Wayne Sullivan, and Donald Knuth.
% The insert text is first typeset in an "infinitely" wide \vbox.
% Some problems remain as in EDMAC. No \break should occur in the
% insert text. We locally redefine \@M and \hfil hoping to repair
% \\ and \linebreak (even \break!) (experimental---please report!) %% TODO
% (EDMAC.doc refers to Michael Downes, `Line breaking in \unhboxed
% Text', TUGboat 11 (1990), pp. 605--612.)
% TODO: Might redefine \hfill and more; cf. Michael Downes' paper.
\def\MFL@fnotepara#1#2#3{\let\@thefnmark\@empty
\NCC@makefnmark{#2}%
\MFL@insert#1{\reset@font\footnotesize
\ifx\@thefnmark\@empty \@tempswafalse \else
\@tempswatrue
\protected@edef\@currentlabel{\@thefnmark}%
\fi
\color@begingroup
\if@tempswa
\setbox\@tempboxa\hbox{\@makefnmark}%
\ifMFL@paraindent
\@tempdima.8em \advance\@tempdima-\wd\@tempboxa
\ifdim \@tempdima<\z@ \@tempdima\z@ \fi
\else
\@tempdima\z@
\fi
\fi
\setbox\@tempboxa\vbox{% <- PATCH!
\@parboxrestore % <- PATCH
\hsize\maxdimen \noindent % <- PATCH!
% \setbox\@tempboxa\hbox{%
\if@tempswa
\hskip\@tempdima\unhbox\@tempboxa\nobreak
\fi
\mathchardef\@M9999 % <- PATCH!
\def\hfil{\hskip\linewidth\@minus\linewidth}% <- PATCH!
\ignorespaces#3\unskip\strut
% \ifMFL@split \penalty\m@ne\space \else % PATCH: removed.
% \penalty-10 \hskip\footglue % PATCH: reinserted below.
% \fi
}%
\setbox\@tempboxa\hbox{% <- PATCH!
% Here is a suitable variant of EDMAC.doc's \unvxh, due to Michael
% Downes:
\setbox\z@\vbox{%
\unvbox\@tempboxa \global\setbox\@ne\lastbox}%
\unhbox\@ne \unskip \unskip \unpenalty
\ifMFL@split % Moved here from above.
\penalty\m@ne\space
\else
\penalty-10 \hskip\footglue
\fi
}%
\dp\@tempboxa\z@ \ht\@tempboxa\MFL@fudgefactor\wd\@tempboxa
\box\@tempboxa
\penalty\z@ % <- PATCH!
\color@endgroup
}%
}
% Like in EDMAC.doc, the additional penalty is removed by
% \MFL@makehhbox which corresponds to \makehboxofhboxes.
% \MFL@makehhbox differs from \makehboxofhboxes, however, in even
% \unvbox'ing a note bundle from a minipage. It seems not to be easy
% to tell a \penalty 0 placed by patched \MFL@fnotepara from another.
% In this version we just hope that removing such other penalties
% causes no damage---after all, the bundle was not supposed to be
% splitted.
\def\MFL@makehhbox{%
\loop
\unpenalty % <- PATCH!
\setbox\z@\lastbox
\ifhbox\z@
\setbox\@tempboxa\hbox{\box\z@\unhbox\@tempboxa}%
\repeat
\ifvbox\z@ \unvbox\z@ \MFL@makehhbox \fi
}
\endinput
VERSION HISTORY:
v0.1 2003/01/19 First. Sent to John Lavagnino + ...
v0.2 2003/01/23 Corrected \Provides... file name;
supplied \vbox in \unvxh (bug fix!).
v0.21 2003/02/27 Stressed problem with \linebreak and \\ in doc.
v0.23 2003/02/28 Further comment on \CheckCommand,
improved explanation mentioning \para@vfootnote.
v0.3 2003/03/01 Changed \@M and \hfil to enable \\ and \linebreak
in para-style.
v0.31 2003/03/24 Reminded above that v0.2 was a real bug fix;
added ednotes.sty@web.de.
v0.32 2003/03/26 Added TODO on Alex' provision. [!?? 2004/04/25]
v0.33 2003/03/28 Added `experimental'; `missing' -> `bad' (hyph.)
2004/01/29 Corrected, in the explanation for users, allusion
to problems to be solved (line breaking, not only
hyphenation) and added mention of \SplitNote
problem.
v0.34 2004/04/25 Added copyright etc.; added missing `%' before
`manyfoot.sty does not deal [...]'. Made
`(loading ...)' more clear.
`patch...' -> `"patch..."'.
v0.35 2004/05/10 Note on \RequirePackage[...]{manyfoot}; enlarged
on loading (Ednotes.sty); manyfoot -> Manyfoot.
2004/05/20 Enhanced comment on \CheckCommand.
2004/07/26 \string" with \Provides..., ^^J.
v0.36 2004/08/21 Added \@parboxrestore--as a bug fix for `center'
environment.
2004/08/23 LPPL v1.3.
2004/08/31 Rearranged preamble concerning maintenance.
v0.4 2004/10/07 Ednotes -> ednotes etc.; instructions:
ednotes option `edmacpara'.
v0.4a 2004/11/07 LPPL v1.3a.
v0.4b 2005/01/10 Contact via http.
v0.41 2006/06/26 \MFL@makemark -> \MFL@makefnmark for nccfoots v1.2;
LPPL v1.3c.
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