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authorNorbert Preining <norbert@preining.info>2022-12-06 03:01:31 +0000
committerNorbert Preining <norbert@preining.info>2022-12-06 03:01:31 +0000
commit9858bb195fd9c52c986155223a79c6fa1158e94c (patch)
tree664f41fbb2b86c7de0942ea98aba6d84b7745ef3 /macros/latex/contrib/lineno/edtable.sty
parent673717f7c662dd135f63b61c1da1ecd59bcdbe90 (diff)
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-%% `edtable.sty'---Uwe L"uck, direction Christian Tapp.
-%% LaTeX package for tables with line numbers and
-%% editorial notes.
-%%
-%% Copyright (C) 2003-2005 Uwe L"uck--author-maintained.
-%%
-\def\fileversion{1.3c} \def\filedate{2005/10/03}
-%%
-%% This file can be redistributed and/or modified under
-%% the terms of the LaTeX Project Public License; either
-%% version 1.3 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 send your comments via
-%%
-%% http://www.contact-ednotes.sty.de.vu
-%%
-%% * USAGE: *
-%
-% *Requirements/overview:*
-%
-% The package is made for the background of the LaTeX2e macro
-% package and enhances functionality of the following packages:
-% 1.) Stephan I. B"ottcher's `lineno.sty' for printing line
-% numbers in the margin and a \label version \linelabel
-% relating labels to line numbers;
-% 2.) our `ednotes.sty' for indicating variant readings and
-% other editorial remarks in separate footnote apparatuses;
-% 3.) David Carlisle's `longtable.sty' for multi-page tables.
-% %% TODO: supertabular etc.!?
-% 4.) our `ltabptch.sty' for a patch of `longtable.sty'
-% (i.e., optionally, see below).
-%
-% Actually, only the first package is necessary for using the
-% present one. The present one needs your line numbering commands
-% according to the first one and its documentation to which we
-% refer here. We likewise refer to the remaining packages for the
-% details of their functionality.
-%
-% `lineno.sty' version 4.1 and (in case it is used) `ednotes.sty'
-% version 0.8 (onwards) are needed. For obtaining recent versions
-% of required packages, see the CTAN folder
-% /macros/latex/contrib/ednotes.
-%
-% *Install/load:*
-% 1.) To be used, the present file must be put into a folder
-% that (La)TeX searches. You should have obtained a file
-% containing more detailed hints about this.
-% 2.) We recommend loading this file *not* by
-% \usepackage[<options>]{edtable} but by loading `lineno.sty'
-% or `ednotes.sty' with package option `edtable'.
-% 3.) To use the package options `longtable' and
-% `nolongtablepatch' that are described below, enter them
-% as options for `lineno.sty' or `ednotes.sty'.
-%
-% *User Commands:*
-%
-% 1. The package defines an environment `edtable' -- for its
-% syntax we consider two cases:
-% (a) Let <stdtable> be a tabular environment "like `tabular'".
-% "Like" here means: (i) we have tested it with `tabular', but
-% it should work with many more (e.g., from the `array' and
-% `tabularx' packages) -- which share certain properties of
-% implementation and requirements. Sorry, you must try, or we
-% hope you will (and tell us). (For wizards: <stdtable> may
-% probably be anything using a single \halign and \tabskip=0pt.)
-% Definitively:
-% (ii) LaTeX's standard `array' and other environments are *not*
-% "like" `tabular'. Namely, environments that work only in math
-% mode are not meant here. They are considered below in `b.'.
-% (iii) `longtable' from the `longtable' package of the `tools'
-% bundle neither is meant. An option of the present package
-% deals with it as described below. Neither `supertabular' is
-% meant.
-% (iv) In general, usage with tabular environments that can
-% break across pages as in (iii) is not recommended, at least
-% when working with `ednotes.sty'. Even if some worked here, a
-% shortcoming with `ednotes.sty' would be that the footnotes can
-% appear on bad pages.
-% -- Now the syntax is:
-% \begin{edtable}{<stdtable>}<args><entries>\end{edtable}
-% -- where <args> and <entries> are usual arguments and entries
-% for <stdtable>. So an example is:
-% \begin{edtable}{tabular}{cc}
-% left upper & right upper \\ left lower & right lower
-% \end{edtable}
-% This produces just what <stdtable> does in an extra line,
-% only adding line numbers in the margin and processing `ednotes'
-% commands in the entries appropriately.
-% (b) Let <stdarray> be an "array environment" like -- standard
-% LaTeX's `array'! "Like" here means (i) ... analogously to
-% <stdtable> above. (ii) "Text" ... oh, sorry, this is not clear
-% to me at present, and I am in a hurry. %% TODO
-% (iii) Nothing from the `amsmath' package seems to work here,
-% sorry, I have tried a lot ... (iv) For standard LaTeX's
-% `eqnarray', it is better to try the `linenomath' environment
-% of `lineno.sty' [with package option `mathlines']. Its
-% modifications in `amsmath' produce (at best) a spurious line
-% number with the `linenomath' environment (up to now).
-% -- Now the syntax is:
-% \begin{edtable}[<$$$>]{<stdarray>}
-% <args><entries>\end{edtable}
-% -- where <args> and <entries> are usual arguments and entries
-% for <stdarray>. <$$$> can be one of `$' or `$$'. Indeed, the
-% <stdtable> syntax above (without [<$$$>]) *does not work*
-% inside $...$ or $$...$$. -- An example:
-% \begin{edtable}[$$]{array}{cc}
-% a_{11} & a_{12} \\ a_{21} & a_{22}
-% \end{edtable}
-% Now, this produces just what <stdarray> does in an extra line
-% etc. as with <stdtable>. However, \linelabel and `ednotes.sty'
-% footnotes may need the `mathrefs' option of `lineno.sty'. For
-% the difference between `[$]' and `[$$]', see below.
-%
-% 2. When working with `ednotes.sty', in
-% \Anote{L1\<L2\>L3}{NOTE}
-% L2 may contain &'s and \\'s, but L1, L3 must not! Analogously
-% for \Bnote, etc., \Anotelabel...\donote..., etc. -- Well this
-% holds for <stdtable>, hardly for <stdarray> ... %% TODO
-%
-% 3. On positioning: You may have wondered about `extra line'
-% above. This means that `edtable' starts a new line at
-% \begin{edtable} and at \end{edtable}. %% TODO: sure!?
-% (a) It should be placed within a `center', `flushleft', or
-% `flushright' environment for proper (vertical) spacing, but
-% also works without. However, with <stdarray> and optional
-% parameter `$$' of `edtable' (i.e., \begin{edtable}[$$]...),
-% you can obtain the usual math display spacing *within a
-% paragraph*; especially, the vertical space is less when the
-% previous line is short ... and so on.
-% (b) Horizontal positioning of line numbers (usually) needs a
-% second run (after changing a table)! %% TODO: automatic warning.
-% (For wizards: It may fail if some of \leftskip, \rightskip,
-% \linewidth, and \@totalleftmargin are used in an unusual way.)
-% A <dimen> register \ETextraoffset is provided whose value is
-% 0pt by default and which additionally moves line numbers
-% to the left (right) if given a positive (negative) value.
-% %% TODO: any use?
-%
-% *Package options:*
-%
-% 1. Option `longtable' adjusts the `longtable' environment
-% defined by David Carlisle's longtable.sty for use with
-% `lineno.sty' and `ednotes.sty'. The option makes `longtable'
-% environments appear with line numbers in the margin, according
-% to `lineno.sty', and process `ednotes.sty' commands if line
-% numbering is active according to `lineno.sty'.
-% [We maintain an alternative package with just this function
-% in a slightly different implementation.] %% -> ulnltab.sty.
-% Lemmas may go across table entries as with `edtable' (see above).
-% ---There might be options like `supertabular' for adjusting
-% other tabular environments that cannot be handled by the
-% `edtable' environment provided here---they have not been
-% implemented yet! %% TODO
-%
-% 2. Option `nolongtablepatch' avoids loading/asking for
-% `ltabptch.sty'. I.e.: according to LaTeX bugs database,
-% tools/3180 and tools/3485, there have been problems with
-% vertical spacing around `longtable' environments. By default
-% the present package loads our `ltabptch.sty' or asks for it.
-% Option `nolongtablepatch' overrides this. This is useful when
-% you don't want to have the patch, especially when you use an
-% "emergency stop" installation of TeX.
-%
-% *Wizard interface:*
-% Macros \@ET@makeLineNumber, \@ET@use@outerhook,
-% \@ET@execute@outerhook, \@ET@ampnotes \@ET@startlinewith,
-% \@ET@trivialize@linelabel are provided as tools for adjusting
-% tabular environments for use with `lineno.sty' and
-% `ednotes.sty'. \@ET@step@linenumber is \let \stepLineNumber
-% (from `lineno.sty'), but could be used as a hook for
-% something different. See Environment `edtable' and Option
-% `longtable' below for examples of application.
-% %% TODO: specification here.
-%
-%
-%% * Acknowledgements: *
-%
-% Stephan I. B"ottcher told us how to do it in extensive discussion
-% and by providing some first code lines. We changed these essentially
-% in some respects, but kept his general ideas and some parts of his
-% macros, the latter even without knowing what we are doing.
-%
-% v1.3 is due to a request by Martin Brandenburg.
-%
-% * Now for internals: *
-%
-\NeedsTeXFormat{LaTeX2e}[1994/12/01]
-% 1994/12/01: \newenvironment* etc. %% TODO: more recent needed?
-\ProvidesPackage{edtable}[\filedate\space v\fileversion\space
- arrays with lineno + ednotes (ul)]
-%
-% Alternative ideas for implementation:
-% 1. There is a German package `TABMAC' enhancing `EDMAC' (cf.
-% documentation of `ednotes.sty'). We could have rewritten its
-% macros so it would work with `lineno.sty' and `ednotes.sty'
-% in place of `EDMAC'. [TODO: "tabmac.sty"]
-% 2. We redefine `longtable' by Option `longtable' because
-% there seems to be only one reasonable use of the `longtable'
-% environment in the course of a critical edition. This may be
-% different for environments like `array' and `tabular' which
-% can be used within text lines. Therefore, these environments
-% are not redefined.
-% 3. One might use \everycr, however: (a) it is executed
-% before the first row, (b) it is executed in fake lines that
-% `longtable' uses.
-% 4. As an alternative to \everycr, there is the approach of
-% redefining \cr and \crcr for setting \noalign. This needs
-% redefining \@tabularcr etc.---not nice. We use this approach
-% here for `longtable' which uses a stretching \tabskip.
-% For \tabskip=0pt, we attach line numbers by a template.
-%
-% \RequirePackage{lineno}[2004/10/06]
-% Wanted to check lineno version--causes unknown option error.
-% See LaTeX bug latex/3730.
-
-% Options:
-
-%% TODO: underful page with `longtable.sty'!?
-\let\if@ET@longtable\iffalse % \newif\if@ET@longtable@
-\DeclareOption{longtable}{\let\if@ET@longtable\iftrue}
-\let\if@ET@ltabptch\iftrue
-\DeclareOption{nolongtablepatch}{\let\if@ET@ltabptch\iffalse}
-\ProcessOptions
-
-% Redefine \longtable if option:
-\if@ET@longtable
- % Stephan's direction for attaching a line number to each row
- % is using \noalign in the course of \\.
- % However, (1) the user should not worry about closing the table
- % with \\ or without, and (2) the line number thing should not
- % happen twice if \\ is the last token before \end{longtable}.
- % Our solution: attach something to the beginning of \endlongtable
- % which attaches line number unless an unsucceeded \\ has done it.
- % This thing is activated by each row start and turned off by \\.
- % Since the switch at row start may happen to be in a pbox,
- % let it act globally on \endlongtable. (The \crcr at the beginning
- % of \endlongtable must not be changed directly, since original
- % \crcr may be required in table entries using \oalign etc.)
- %
- \RequirePackage{longtable}%
-% \IfFileExists{longtable.sty}{\RequirePackage{longtable}}%
-% {\RequirePackage{longtabl}}%
-% For Atari problem, it suffices to rename `longtable.sty'
-% into `longtabl.sty'.
-%
-% Patch for tools/3180 and tools/3485 of LaTeX bug database:
- \if@ET@ltabptch
- \IfFileExists{ltabptch.sty}{\RequirePackage{ltabptch}}{%
- \PackageError{edtable}{%
- ltabptch.sty (for improving spacing around\MessageBreak
- longtable) missing! Be sure to use it always\MessageBreak
- or never!%
- }{%
- To omit ltabptch.sty *and* escape this error,\MessageBreak
- use package option `nolongtablepatch'.%
- }%
- }
- \fi
- \let\@ET@@longtable\longtable
- \def\longtable{%
- \ifLineNumbers
- \expandafter\@ET@longtable
- \else
- \let\@ET@sw@cr\@ET@crcr % ... in \endlongtable.
- \expandafter\@ET@@longtable
- \fi
- }
- \def\@ET@longtable{%
- % Since we have made it anyway, we use the method of redefining
- % \halign for inserting the activating row start as well.
- % However, redefinition must be repeated before every \LT@bchunk.
- % \longtable and \LT@get@withs are good places for this.
- \@ET@startlinewith\@ET@sw@cr@on
- \@ET@trivialize@linelabel
- \@ET@use@outerhook
- \@ET@ampnotes
- \let\LT@tabularcr\@ET@LT@tabularcr
- \expandafter\def\expandafter\LT@get@widths\expandafter
- {\LT@get@widths\@ET@startlinewith\@ET@sw@cr@on}
- % Admittedly, we could make it less of a hack by using @{...}
- % ---we could then leave \LT@get@widths untouched.
- \@ET@@longtable
- }
- \def\@ET@sw@cr@on{\global\let\@ET@sw@cr\@ET@cr@attach}
- % We are hacking a longtable version offering
- % \def\LT@tabularcr{%
- % \relax\iffalse{\fi\ifnum0=`}\fi
- % \@ifstar
- % {\def\crcr{\LT@crcr\noalign{\nobreak}}\let\cr\crcr
- % \LT@t@bularcr}%
- % {\LT@t@bularcr}}
- % We need a redefinition of \cr which is not overridden by \@ifstar:
- \def\@ET@LT@tabularcr{%
- \relax\iffalse{\fi\ifnum0=`}\fi
- \def\cr{\@ET@sw@cr}%
- % So \crcr is affected by change of \@ET@sw@cr, cf. below.
- \let\crcr\cr
- \@ifstar
- {\gdef\@ET@sw@nobreak{\nobreak
- \global\let\@ET@sw@nobreak\relax}%
- % {\def\cr{\@ET@sw@cr\noalign{\nobreak}}\let\cr\crcr
- % Why didn't this work? %% TODO: try shorter again.
- \LT@t@bularcr}%
- \LT@t@bularcr
- % {\let\cr\@ET@sw@cr \let\crcr\cr
- % \LT@t@bularcr}% This accompanied \def\cr... above.
- }
- % Attach \@ET@sw@cr to beginning of \endlongtable:
- \expandafter\def\expandafter\endlongtable\expandafter
- {\expandafter\@ET@sw@cr\endlongtable}
- \def\@ET@cr@attach{% Actually attaching line numbers.
- \@ET@crcr\noalign{% Basically Stephan's approach.
- % If we were not careful, following box containing line number
- % could fool interline glue after longtable, even if tools/3485
- % is repaired in some way. This box should have same depth as
- % the line composed previously.
- \nobreak %% \@ET@ex... might cause page break. 2003/10/30.
- \setbox\z@\@ET@makeLineNumber
- \ht\z@-\prevdepth \dp\z@\prevdepth \box\z@
- \@ET@step@linenumber
- \global\let\@ET@sw@cr\@ET@crcr % ... if called by \\.
- % This also resets the \crcr starting \LT@echunk following
- % \@xargarraycr or \@yargarraycr in \LT@argtabularcr.
- % \let...\relax seems to suffice at well, but in case ...
- \@ET@execute@outerhook %% 2003/10/30.
- \@ET@sw@nobreak
-% \@ET@execute@outerhook
- }%
- }
- \let\@ET@crcr\crcr
- \global\let\@ET@sw@nobreak\relax % Just to remind ...
-\fi
-
-\let\@ET@step@linenumber\stepLineNumber
-% \def\@ET@step@linenumber{\global\advance\c@linenumber\@ne}
-\def\@ET@makeLineNumber{\hb@xt@\z@{\makeLineNumber}}
-%% TODO: export to lineno.sty!?
-% Special \halign:
-% For `array' etc., we insert line numbers by a leftmost template.
-% @{...} in the last argument of `array' etc. is difficult for this
-% since `tabular*' has an additional argument. So we redefine
-% \halign to put something to the right of the next \bgroup.
-% Now, as a macro, \halign would break in an \edef or \xdef.
-% Horribly, this danger has become quite real in longtable.sty's
-% definition of \LT@bchunk. Only its latest version 4.10 has
-% preceded \halign by a \noexpand (for mathtext.sty which
-% redefines \halign as well). We need not rely on such a
-% provision if we let \halign expand to \the<token register>
-% for some token register. However, using \toks@ or \@temptokena
-% is neither very safe---might be filled by macro ahead with
-% something new. So reserve an own token register.
-\newtoks\@ET@toks
-\@ET@toks{\@ET@specialhalign}
-% v1.3: In 'AMSmath', there are \halign's followed by explicit
-% left braces. Thus '\def\@ET@specialhalign#1\bgroup{%' broke.
-%% TODO ...
-\def\@ET@specialhalign{%
- \ifmeasuring@ \expandafter\@firstoftwo
-% v1.3 2005/03/04, for `amsmath'.
- \else \expandafter\@secondoftwo
- \fi
- {\let\halign\@ET@@halign \halign}%
- {\@ifnextchar\bgroup\@ET@replace@arg\@ET@sphalign@to}}
-%% TODO: change back, commenting out code above, report
-%% error with `alignat'.
-% \@ifnextchar\bgroup\@ET@replace@arg\@ET@sphalign@to}
-% If `amsmath' not loaded (v1.3):
-\AtBeginDocument{\@ifundefined{measuring@true}{%
- \let\ifmeasuring@\iffalse}\relax}
-\def\@ET@replace@arg#1{%
- \def\@EN@tempa{#1}\def\@EN@tempb{\bgroup}% Corr. after v1.3b.
- \ifx\@EN@tempa\@EN@tempb
- \def\@EN@tempa{\@ET@sphalign@to\bgroup}%
- \else
- \def\@EN@tempa{\@ET@sphalign@to{#1}}%
-% This may be wrong, #1 might be `t' from `to' ...
- \fi
- \@EN@tempa}
-\def\@ET@sphalign@to#1\bgroup{%
- \let\halign\@ET@@halign % Reset for nested arrays.
- \halign#1\bgroup
-% \ifmeasuring@\else % For `amsmath', moved backwards.
- \@ET@startline % [Wizard interface, via \@ET@starlinewith.]
-% \fi
-}
-% Wizard interface:
-\def\@ET@startlinewith{% Next token precedes preamble.
-% \let\@ET@@halign\halign % Or \AtBeginDocument?
-% ... indeed: bad loop with long longtable (\LT@get@widths!?)
- \def\halign{\the\@ET@toks}%
- \let\@ET@startline
-}
-\AtBeginDocument{\let\@ET@@halign\halign}
-% Or save it at start of environment only
-% (don't repeat inside longtable).
-%
-% Outer hook for inserts: (wizard interface)
-\def\@ET@execute@outerhook{% To be placed outside inner mode.
- \@ET@outerhook \global\let\@ET@outerhook\@empty
-}
-\global\let\@ET@outerhook\@empty % Just to remind: global!
-% \@EN@hookfn (ednotes) sends to outer hook:
-\def\@ET@use@outerhook{% Wizard interface.
- \def\@EN@hookfn{\g@addto@macro\@ET@outerhook}%
-}%% TODO: move last line to `ednotes', \let\@ET@use...\@empty.
-%% But this requires re-installing both packages
-%% at the same time. See the `ampnotes' thing as well.
-%
-% Trivialize \linelabel: (wizard interface)
-\def\@ET@trivialize@linelabel{\let\linelabel\@ET@linelabel}
-\def\@ET@linelabel{%
- \protected@edef\@currentlabel{\theLineNumber}%
- \label
-}
-% Change ampersand at \Anote etc.: (wizard interface)
-%% 2003/10/31.
-% & is changed by \Anote etc. No \begin...\endgroup,
-% next \\ or & after % note/donote command switches back.
-% ---Global change seems to break table setup.
-\begingroup
-\gdef\@ET@hideamps{\catcode`\&\active}
-\@ET@hideamps
-\gdef\@ET@ampnotes{%
- \let&\@ET@hideamp
- %% & would be undefined after \\ in lemma.
- \let\@ET@EN@rnote\@EN@note
- \def\@EN@note{\@ET@hideamps\@ET@EN@rnote}%
- \let\@ET@EN@rnotelb\@EN@notelabel
- \def\@EN@notelabel{\@ET@hideamps\@ET@EN@rnotelb}%
-}
-%% TODO: & and \\ in \@EN@lemmaexpands!?
-\endgroup
-\def\@ET@hideamp{&}
-
-\newenvironment*{edtable}[2][]{%
-% #1 $ or $$, #2 standard environment name.
-%% TODO: star version!? cf. lineno.sty's `numquote'.
- \def\@ET@mode{#1}%
- \def\@ET@currenvir{#2}%
- \ifhmode \ifnum\the\lastpenalty=-\@M\else
-% \par must be executed for printing/stopping line numbers:
- \@centercr\relax \noindent
- \fi \fi
- \ifvmode \noindent \fi % Otherwise linenumbers are indented
-% -- however, not recommended.
- \@ET@use@outerhook
- \@ET@trivialize@linelabel
- \@ET@ampnotes
- \@ET@startlinewith\@ET@normal@startline
- \global\advance\c@linenumber\m@ne % Stepping correction.
-% (Must come after closing previous paragraph.)
-% Calculate offset:
- \global\advance\c@ET@array\@ne
-% Saving/calling width of table (`longtable's algorithm).
-% Test if there is \@flushglue on the left (center or flushleft):
- \edef\@EN@tempa{\the\@flushglue}%
-% ... v1.3: fool this for "$$".
- \in@{$$}{#1\@nil}% \in@{#1}{#2} searches #1 in #2#1 ...
- \edef\@EN@tempb{\the\ifin@\@flushglue\else\leftskip\fi}%
- \ifx\@EN@tempa\@EN@tempb
-% Assume \@ET@offset is 0pt else here.
- \@ET@offset\linewidth
- \advance\@ET@offset-%
- \@ifundefined\@ET@arraywidth@csn % Shortened for v1.3.
- {\linewidth\G@refundefinedtrue
- \PackageWarningNoLine{edtab}{^^JLine numbers at
- \@ET@currenvir\space need \jobname.aux}}%
- {\csname\@ET@arraywidth@csn\endcsname}%
-% Test if \@flushglue on the right (center):
-% ... v1.3: fool it again. Repeat \in@ in case ...
- \in@{$$}{#1\@nil}%
- \edef\@EN@tempb{\the\ifin@\@flushglue\else\rightskip\fi}%
- \ifx\@EN@tempa\@EN@tempb \divide\@ET@offset\tw@ \fi
- \fi
- \advance\@ET@offset\@totalleftmargin
- \advance\@ET@offset\ETextraoffset % Offset ready.
- \setbox\@tempboxa\hbox\bgroup
-% v1.3: `alignat' complains later when this is \vbox instead.
-% \vbox\bgroup % Tried in vain.
- \ifx\@ET@mode\@empty\else $\fi
- \csname#2\endcsname
-}{%
- \csname end\@ET@currenvir \endcsname
- \ifx\@ET@mode\@empty\else $\fi
- \egroup
- \@ET@step@linenumber % Stepping correction.
- \if@filesw
- \immediate\write\@auxout{%
- \gdef\expandafter\noexpand
- \csname\@ET@arraywidth@csn\endcsname
- {\the\wd\@tempboxa}}%
-%% TODO: warning if changed!?
- \fi
-% No automatic line number at array line:
- \nolinenumbers
- \@ET@mode\ensuremath{\vcenter{\box\@tempboxa}}\@ET@mode % v1.3.
- \@ET@execute@outerhook
- \ifhmode \@centercr\relax \fi
-% \par must be executed for proper restart of printing line numbers
-% (think so).
- \@endpetrue % Outside \@flushglue environment, avoid indent ahead.
-%% TODO: slightly change for math mode around? Or give an error
-%% in math mode.
-}
-%% TODO: make \edtable \outer!?
-\def\@ET@normal@startline{%
- \@ET@step@linenumber
- \llap{\@ET@makeLineNumber \hskip\@ET@offset}%
-}
-\newdimen\@ET@offset
-\newdimen\ETextraoffset
-%% TODO: export to lineno.sty!?
-\newcount\c@ET@array
-\def\@ET@arraywidth@csn{ET@a@\romannumeral\c@ET@array}
-%
-%% TODO: .dtx
-\endinput
-
-%% VERSION HISTORY:
-v0.22 2003/01/13 First version, named `edtab02.sty', sent around,
- together with ednotes.sty.
-v0.23 2003/01/22 Added version history.
-v0.24 2003/01/27 Copyright notice.
-%%% v0.3 2003/03/03 Requires linenox0.sty. %% RETREATED
-%% TODO: reconsider, see `lineno[x].sty'.
-v0.25 2003/03/05 Added <ednotes.sty@web.de>.
-v0.26 2003/03/23 Added \@ET@startlinewith to wizard command list;
- moved redefinition \LT@get@widths from option code
- into \@ET@longtable so this really happens in
- line number mode only; moved \let\@ET@@halign\halign
- from \@ET@startlinewith to \AtBeginDocument.
-v0.27 2003/06/02 Added \ifvmode \noindent \fi to `edtable' definition;
- 2003/06/10 added `lemma cannot run' to instructions.
-v0.28 2003/10/31 \@ET@cr@attach: moved \@ET@execu..., added \nobreak.
- Added \@ET@ampnotes and documentation: now working
- across entries.
-v1.0 2004/05/13 `ednotes.sty' etc., updated copyright. Renamed as
- `edtable.sty' for TUGboat article.
- \RequirePackage{lineno}, changed doc. accordingly.
- Removed `may be released under different name'.
-v1.10 2004/07/27 Looking for `longtabl.sty' for my Atari!
- 2004/08/22 Added warning (screen/documentation) concerning
- ltabptch.sty.
- 2004/08/23 Added suggestion of option `nolongtablepatch';
- LPPL v1.3.
-v1.2 2004/08/31 Rearranged preamble concerning maintenance,
- removed `preliminary release'.
- 2004/10/06 \newif -> \let...; option `nolongtablepatch';
- changed documentation accordingly and for
- loading edtable.sty by lineno/ednotes option;
- \let\@ET@step@linenumber\stepLineNumber; use
- \ifLineNumbers.
- 2004/10/07 Needed version numbers.
- 2004/10/08 ltabptch warning -> error!
- 2004/10/11 Disabled \RequirePackage{lineno}[...]; undid
- the `longtabl.sty' thing from 2004/07/27.
- 2004/10/12 latex/3730.
-v1.2a 2004/11/07 LPPL v1.3a.
-v1.2b 2005/01/10 Contact via http.
-v1.3b 2005/03/04 Support for environments like `array'
- environment. The description of `edtable' was
- wrong in this respect!
-v1.3 2005/03/07 Adaptations in documentation, and extended usage
- instructions very much, correcting some
- errors as well. Acknowledgement to M. B.
-v1.3a 2005/03/09 Corrected numbering in `usage'.
-v1.3c 2005/03/15 \@centercr\relax, TODO on math mode.
- 2005/04/09 `editory' -> `editorial'.