% \iffalse % File paralist.dtx % Copyright 1998-2017 Bernd Schandl % Copyright 2013 Julian Gilbey (modifications in v2.4) % email schandl@gmx.com % % Documentation and documented source code for the paralist package. % % See the README file for instructions. % % This file can be redistributed and/or modified under the terms % of the LaTeX Project Public License distributed from CTAN % archives in the directory macros/latex/base/lppl.txt; either % version 1 of the license, or (at your option) any later version. % % \fi %% \CharacterTable %% {Upper-case \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z %% Lower-case \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z %% Digits \0\1\2\3\4\5\6\7\8\9 %% Exclamation \! Double quote \" Hash (number) \# %% Dollar \$ Percent \% Ampersand \& %% Acute accent \' Left paren \( Right paren \) %% Asterisk \* Plus \+ Comma \, %% Minus \- Point \. Solidus \/ %% Colon \: Semicolon \; Less than \< %% Equals \= Greater than \> Question mark \? %% Commercial at \@ Left bracket \[ Backslash \\ %% Right bracket \] Circumflex \^ Underscore \_ %% Grave accent \` Left brace \{ Vertical bar \| %% Right brace \} Tilde \~} %% % \iffalse %<*dtx> \ProvidesFile{paralist.dtx}% % %\ProvidesPackage{paralist}% %\ProvidesFile{paralist.drv}% % \fi % \ProvidesFile{paralist.dtx}% [2017/01/22 v2.7 Extended list environments] % \iffalse %<*driver> \documentclass[11pt]{ltxdoc} \usepackage[defblank,neverdecrease]{paralist} %% Comment out the next line if you want the documentation for the source code. \OnlyDescription %% Uncomment the next two lines for a change history. %% See also the instructions above. %% \AtBeginDocument{\RecordChanges} %% \AtEndDocument{\PrintChanges} %% Uncomment the next two lines for a command index. %% See also the instructions above. %% \AtBeginDocument{\CodelineIndex} %% \AtEndDocument{\setcounter{IndexColumns}{2}\PrintIndex} \begin{document} \DocInput{paralist.dtx} \end{document} % % \fi % % \changes{v1.0 (1998/10/09)}{}{Initial version} % \changes{v1.1 (1998/10/18)}{}{Added some examples} % \changes{v1.2 (1999/01/10)}{1999/01/07}{Most of the package and the % documentation rewritten} % \changes{v1.5 (1999/03/15)}{1999/03/15}{Released under LPPL} % \changes{v1.7 (1999/04/01)}{1999/03/31}{Use \cs{GetFileInfo}} % \changes{v1.9 (2000/03/05)}{2000/03/05}{Email and WWW changed} % \changes{v2.2 (2001/09/30)}{2001/09/30}{WWW changed} % \changes{v2.2a (2001/10/02)}{2001/10/02}{Minor documentation changes} % \changes{v2.3 (2002/03/10)}{2002/03/10}{Several changes in code} % \changes{v2.3a (2002/03/10)}{2002/03/10}{Couple of changes} % \changes{v2.3b (2002/03/18)}{2002/03/18}{Fix handling of flags} % \changes{v2.4 (2013/06/09)}{2013/06/09}{Extra option for label width (JDG)} % \changes{v2.5 (2015/12/30)}{2015/12/30}{Fix excess space introduced in v2.4} % \changes{v2.6 (2016/08/07)}{2016/08/07}{Fix of inparaitem and inparadesc} % \changes{v2.7 (2017/01/22)}{2017/01/22}{Fix of labelwidth problem introduced in v2.4} % % \GetFileInfo{paralist.dtx} % \CheckSum{1059} % % \makeatletter % \renewenvironment{theglossary}{% % \glossary@prologue \GlossaryParms \let\item\@idxitem \ignorespaces}{} % \makeatother % % \MakeShortVerb{\|} % % \let\package\textsf % \let\tab\indent % \IndexMin3cm % % \title{\package{paralist}\thanks{Package version \fileversion{} of % \filedate{}.} \\ Extended List Environments} % \author{Bernd Schandl \\ {\small |schandl@gmx.com|}} % \date{Printed on \today} % \maketitle % % \begin{abstract} % This package provides some new list environments. Itemized and enumerated % lists can be typeset within paragraphs, as paragraphs and in a compact % version. Most environments have optional arguments to format the labels. % Additionally, the \LaTeX\ environments |itemize| and |enumerate| can be % extended to use a similar optional argument. % \end{abstract} % % \section{Introduction} % % In a posting to |comp.text.tex| in May 1998, someone asked about the % possibility of an enumerated environment that % \begin{inparaenum}[(a)] % \item can be used within paragraphs, % \item takes care of enumeration and % \item has items that can be referenced. \label{pl2} % \end{inparaenum} % Another posting mentioned the package \package{theapa} as % a possible solution. Now that I was looking for that kind of environment and % found those old postings, I had a look at \package{theapa} and decided to % take out the part about list environments and rewrite it a little bit. % % Over time, compact versions of |enumerate|, |itemize| and |description| have % been added and optional arguments for most environments make it possible to % define a special way of formatting the labels. % % \section{Package Options} % % Certain parts of the package are only executed if appropriate options are % specified. % \begin{compactdesc} % \renewcommand*\makelabel[1]{\hspace\labelsep % \normalfont\mdseries\sffamily #1} % \item[newitem/olditem] With \textsf{newitem} (set by default), the \LaTeX\ % environment |itemize| will be redefined to have an optional argument to % specify the format of the label. See Section~\ref{sec:format}. % Specifying \textsf{olditem} will leave |itemize| as it is. % \item[newenum/oldenum] With \textsf{newenum} (set by default), the \LaTeX\ % environment |enumerate| will be redefined to have an optional argument % to specify the format of the label. See Section~\ref{sec:format}. % Specifying \textsf{oldenum} will leave |enumerate| as it is. % \item[alwaysadjust] The width of the labels of the environments % |compactenum|, |enumerate|, |compactitem| and |itemize| is always % adjusted to the actual label. For the default labels, this means that % the label width is usually decreased. % \item[neveradjust] The width of the labels is never adjusted, not even for % environments where you defined the labels manually using the optional % argument. This option is ignored if option \textsf{alwaysadjust} is used % as well. % \item[neverdecrease] If the width of the labels is adjusted, this option % avoids the decrease of the width. Here is an example why this might make % sense. If no \textsf{\dots adjust} option is specified, then the % indentation of the \cs{item} in |\begin{enumerate}| and % |\begin{enumerate}[1.]| is different although they have the same % labels. % \item[defblank] The two environments |inparablank| and |asparablank| will % be defined. See Section~\ref{sec:blank}. % \changes{v2.0 (2001/03/03)}{2001/03/03}{New options \textsf{pointlessenum} % and \textsf{pointedenum}} % \item[pointlessenum] The items in the enumerated environments are labeled % and referenced as in ``1'', ``1.1'', ``1.1.1'' and ``1.1.1.1''. See % also Section~\ref{sec:format}. % \item[pointedenum] The items in the enumerated environments are labeled % as in ``1.'', ``1.1.'', ``1.1.1.'' and ``1.1.1.1.'' and referenced % without the trailing point. See also Section~\ref{sec:format}. This % option is ignored if \textsf{pointlessenum} is used. % \item[flushright] The labels in the four lists mentioned above are set % flush right. As this is the \LaTeX\ default, this is also the default % for this package. % \item[flushleft] The labels in the four lists mentioned above are set % flush left. % \changes{v1.9 (2000/03/05)}{2000/03/05}{New options % \textsf{cfg}/\textsf{nocfg}} % \item[cfg] The configuration file |paralist.cfg| is loaded if it % exists. (default) % \item[nocfg] The configuration file is not loaded. % \end{compactdesc} % The option \textsf{increaseonly} is deprecated; use \textsf{neverdecrease} % instead. % % \section{Formatting the Labels} % \label{sec:format} % % All the itemized and enumerated environments have optional arguments to % specify the format of the labels. The following examples will only work if % you have loaded \package{paralist} \emph{without} the options % \textsf{olditem} and \textsf{oldenum}. % % Using the \LaTeX\ standard classes, |itemize| uses the following symbols % for the labels of the four list levels: {\textbullet} % {\normalfont\bfseries \textendash} {\textasteriskcentered} % {\textperiodcentered}. If you want to change this for a particular % environment, just say something like\\ % \tab|\begin{itemize}[$\star$]|\\ % and $\star$ will be used instead of the default symbol. % % The optional argument of the enumerated environment is a little more % complicated, but whoever has worked with David Carlisle's % \package{enumerate} package can skip the rest of the section since exactly % the same mechanism (and almost the same code) is used. % % The tokens |A|, |a|, |I|, |i|, and |1| can be used in the optional argument % to produce the counter with one of the styles \cs{Alph}, \cs{alph}, % \cs{Roman}, \cs{roman} and \cs{arabic}.\footnote{% % The set of tokens can be extended. Look for \cs{pl@hook} in the code % section.} % These letters may be surrounded by any other string involving any other % \TeX\ expression. However, the tokens |A a I i 1| must be inside a |{ }| % group if they should not be taken as special. A few examples follow.\\ % \tab|\begin{enumerate}[(i)]|\\ % produces the labels (i), (ii), (iii) \dots\\ % \tab|\begin{enumerate}[{example} a)]|\\ % produces example a), example b), example c) \dots\\ % \tab|\begin{enumerate}[{A}-1]|\\ % produces A-1, A-2, A-3 \dots\\ % \tab|\begin{enumerate}[\bfseries {Item} I]|\\ % produces \textbf{Item I}, \textbf{Item II}, \textbf{Item III} \dots % % Note that in the last example |[\textbf{Item I}]| does not work because % the special token |I| is inside a group. % % The \cs{ref} command produces only the counter without the surrounding text, % so in the examples above you would get i, a, 1 and I respectively if you % referenced the first item. % % If the labels use roman (as in the first example above), an attempt % is made to determine the widest necessary label, assuming the % maximum item number is at most~7. If this is not the case, and the % labels might be wider than this, one can use a second optional % argument specifying the widest label number, for example:\\ % \tab|\begin{enumerate}[(i)][8]|\\ % which will produce the labels (i), (ii), \dots, (vii), (viii), (ix) % and so on, with everything up to (xvi) fitting % comfortably.\footnote{This feature was introduced in version 2.4 of % this package, and it would be wise therefore, if using this % feature in portable documents, to specify % \texttt{\char`\\usepackage\char`\{paralist\char`\}[2013/06/09]} % when loading the package.} % % \DescribeMacro{\pointedenum} % \DescribeMacro{\pointlessenum} % There are also two package options and two corresponding macros to format % the labels and references of enumerated environments. The option % \textsf{pointedenum} and the macro |\pointedenum| format the labels as in % ``1.'', ``1.1.'', ``1.1.1.'' and ``1.1.1.1.'' and the references without the % trailing point. The option \textsf{pointlessenum} and the macro % |\pointlessenum| do not use the trailing point in the labels either. % % While the package options make a global change, the macros can be used for a % local change or to define a special environment, for example\\ % \tab|\newenvironment{myenum}%|\\ % \tab| {\pointedenum\begin{enumerate}}%|\\ % \tab| {\end{enumerate}}|\\ % Note that |\begin{enumerate}| is used \emph{after} |\pointedenum|, otherwise % the optional argument of enumerate would not work (in case you want to use % them within the same environment which doesn't really make sense). % % \DescribeMacro{\paradescriptionlabel} % In the document classes, the label format for the |description| environment % is defined as\\ % \tab|\newcommand*\descriptionlabel[1]{%|\\ % \tab| \hspace\labelsep\normalfont\bfseries #1}|.\\ % This is also used by |compactdesc|. For the environments |inparadesc| and % |asparadesc|, there is a separate macro called \cs{paradescriptionlabel} % defined (almost) like this:\\ % \tab|\newcommand*\paradescriptionlabel[1]{%|\\ % \tab| \normalfont\bfseries #1}|. % % % \section{Defaults for Labels and Margins} % % If you want your lists labeled differently than the \LaTeX\ default % throughout your document, it is a bit awkward to use the optional argument % of the environments all the time. Therefore three macros are provided % to define the labels and the left margins of the list environments. % % Note that the macros defining the labels do \emph{not} adapt the left % margins of the list environments because this may have unexpected side % effects. If you want that change, you have to explicitly use % \cs{setdefaultleftmargin}. % % If in any of the following three macros an argument is empty, then % the according label or margin is left unchanged. % % \DescribeMacro{\setdefaultitem} % The default labels of itemized environments can be set by using the macro % \cs{setdefaultitem} which needs four arguments. To get the \LaTeX\ default % labels say\\ % \tab|\setdefaultitem{\textbullet}%|\\ % \tab| {\normalfont\bfseries \textendash}%|\\ % \tab| {\textasteriskcentered}{\textperiodcentered}|\\ % (which is of course silly because you don't need to do anything if you want % to stick with the default labels). If you want a triangle % ($\,\triangleright$) instead of the endash for level two just say\\ % \tab|\setdefaultitem{}{$\triangleright$}{}{}|. % % \DescribeMacro{\setdefaultenum} % The labels of enumerated lists are formatted with \cs{setdefaultenum} % using the mechanism described in Section~\ref{sec:format}. The \LaTeX\ % default labels could be defined by\\ % \tab|\setdefaultenum{1.}{(a)}{i.}{A.}|.\\ % If you want capital Roman letters for level three, just say\\ % \tab|\setdefaultenum{}{}{I.}{}|. % % \DescribeMacro{\setdefaultleftmargin} % To change the left margin of the lists, use \cs{setdefaultleftmargin}. % The length \cs{leftmargin}$\,n$ specifies the indentation of a list of level % $n$ with respect to the list of level $n-1$ or the surrounding text % (if $n=1$). The environments that use \cs{leftmargin}$\,n$ are (at least) % |enumerate|, |compactenum|, |itemize| and |compactitem| (maybe a few more % that I am not aware of). The \LaTeX\ settings could be defined by\\ % \tab|\setdefaultleftmargin{2.5em}{2.2em}{1.87em}{1.7em}{1em}{1em}|.\\ % In \textsf{twocolumn} mode \LaTeX\ uses a smaller margin for the first, % fifth and sixth level which could be defined by\\ % \tab|\setdefaultleftmargin{2em}{}{}{}{.5em}{.5em}|. % % The macros \cs{defaultitem}, \cs{defaultenum} and |\defaultleftmargin| % should not be used anymore. They are only kept for backward compatibility % with package versions~$<2.1$. % % If some of your changes should appear in \emph{every} document that uses % \package{paralist}, put them in a file |paralist.cfg| which is read at the % end of the package in case it exists (unless you specified the option % \textsf{nocfg}). % % \section{New Environments} % % \subsection{Enumerated Environments} % % \DescribeEnv{asparaenum} % The environment |asparaenum| is an enumerated environment in which the % items are formatted as separate paragraphs. % % As an example, we use |asparaenum| within this paragraph. % \begin{asparaenum} % \item Every \cs{item} is basically set as a separate paragraph. The second % line is \emph{not} indented (this is a feature, not a bug). % \item The next \cs{item} looks like this and is labeled. \label{pl1} % \end{asparaenum} % The example was produced by the following piece of code: %\begin{verbatim} % \begin{asparaenum} % \item Every ... % \item The next ... \label{pl1} % \end{asparaenum} %\end{verbatim} % By saying |\ref{pl1}| we get \ref{pl1}. % % \DescribeEnv{inparaenum} % The |inparaenum| environment formats an enumerated list within a paragraph, % just like the one in the introduction. % % The example in the introduction was set by the following commands: %\begin{verbatim} % ... of an enumerated environment that % \begin{inparaenum}[(a)] % \item can be used within paragraphs, % \item takes care of enumeration and % \item has items that can be referenced. \label{pl2} % \end{inparaenum} % Another posting mentioned ... %\end{verbatim} % By saying |\ref{pl2}| we get \ref{pl2}. % % \DescribeEnv{compactenum} % The |compactenum| environment is just a compact version of the standard % |enumerate| environment. All the vertical skips are set to zero (actually % they are adjustable, see Section~\ref{sec:Finetuning}). % % \subsection{Itemized Environments} % % \DescribeEnv{asparaitem} % The |asparaitem| environment is very similar to |asparaenum|. It just uses % symbols instead of enumerating the items. The environment has an optional % argument which specifies the symbol. For an example see % Section~\ref{sec:Nesting-Environments}. % % \DescribeEnv{inparaitem} % Similar to |inparaenum| I added an environment |inparaitem| which also % has an optional argument. I don't really know why anybody would use it, but % I added it because of symmetry. % % \DescribeEnv{compactitem} % The |compactitem| environment is again just a compact version of the % standard |itemize| environment with all the vertical skips set to zero. % So by using this environment % \begin{compactitem}[$\circ$] % \item you can save some space and % \item specify the symbol. % \item Let me add a longer item so that you can see that we have a different % indentation than in the |asparaitem| environment. % \end{compactitem} % The code of the example above is %\begin{verbatim} % \begin{compactitem}[$\circ$] % \item you can save some space and % \item specify the symbol. % \item Let me add ... % \end{compactitem} %\end{verbatim} % % \subsection{Descriptive Environments} % % \DescribeEnv{asparadesc} % The |asparadesc| environment is again very similar to |asparaenum|. It just % uses the optional arument of \cs{item} as the ``intro'' for the paragraph. % % \DescribeEnv{inparadesc} % Again similar to |inparaenum|, I added an environment |inparadesc|. Probably % nobody would use it but I added it because of symmetry. % % \DescribeEnv{compactdesc} % The |compactdesc| environment is copied from the \LaTeX{} standard classes % with all the vertical skips set to zero. By the way, does anybody know why % |description| has to be defined by the document class and is not defined in % |ltlists.dtx|? % % \subsection{Blank Environments} % \label{sec:blank} % % Someone requested list environments that print their items as if there was no % list. It seems that this makes entering structured data a little easier in % LyX. Since not everybody needs these (odd) environments they are only % defined if the package is loaded with the option \textsf{defblank}. The % following two environments do not have optional arguments because there is % no label to format. % % \DescribeEnv{asparablank} % Every item is formatted just as if it was a regular paragraph. If you want % to use the optional argument of \cs{item}, you have to add some white space % at the end because \cs{labelsep} is set to zero. Use something like\\ % \tab|\item[\textbullet\hspace{.5em}]| % % \DescribeEnv{inparablank} % The items are set % \begin{inparablank} % \item just as regular text. % \item The ``white space problem'' mentioned in the last paragraph % \item is handled automatically. % \end{inparablank} % If I didn't tell you, you wouldn't know that this paragraph is set using the % following construction: %\begin{verbatim} % ... are set % \begin{inparablank} % \item just as ... % \item The ... % \item is handled ... % \end{inparablank} % If I didn't ... %\end{verbatim} % %\section{Nesting Environments} %\label{sec:Nesting-Environments} % % All the environments can be nested just as the standard list environments % although the results might sometimes not be as expected. For example, it's % probably not a good idea to call another list environment within a % |inpara...| environment, but why should anyone want to do this? The maximal % nesting level is six (four of the same kind), just as for the \LaTeX\ % environments. % % This paragraph is % \begin{asparaitem}[$\star$] % \item an example for the usage of |asparaitem| and its optional argument, % \item and a demonstration that % \begin{inparaenum}[(i)] % \item you can use |inparaenum| within |asparaitem| and % \item you can still reference it. \label{pl3} % \end{inparaenum} % \end{asparaitem} % The reference was in subitem (\ref{pl3}). % The code of the last example is %\begin{verbatim} % \begin{asparaitem}[$\star$] % \item an example ... % \item and a demonstration that % \begin{inparaenum}[(i)] % \item you can use ... % \item can still ... \label{pl3} % \end{inparaenum} % \end{asparaitem} % The reference was in subitem (\ref{pl3}). %\end{verbatim} % %\section{Fine-Tuning} %\label{sec:Finetuning} % % Ok, I already hear someone saying ``Your compact lists are a nice idea, % but I'd like to have it a little less compact.'' Here is a solution. The % following skips can be adjusted using \cs{setlength} and affect the % spacing of the |compact...| environments. The names are chosen similar to % the \LaTeX{} names, so I just copy the explanation from |ltlists.dtx|. % \begin{compactdesc} % \item[\cs{pltopsep}:] Space between first item and preceding paragraph. % \item[\cs{plpartopsep}:] Extra space added to \cs{topsep} when % environment starts a new paragraph (is called in vmode). % \item[\cs{plitemsep}:] Space between successive items. % \item[\cs{plparsep}:] Space between paragraphs within an item -- the % \cs{parskip} for this environment. % \end{compactdesc} % Actually, the two |...topsep| skips are added before \emph{and after} the % list. % % The default value for all of them is 0\,pt. It is probably a good idea to % define them depending on the font size if they are non-zero, i.\,e.\ using % units such as |ex| or |em|. % % \section{Bugs and Wishes} % % No bugs \dots that I know of. % % \changes{v2.3 (2002/03/10)}{2002/03/10}{Describe incombatibility with % \package{babel}} % Well, there is actually one issue if you use the \package{babel} package % with one of the options \textsf{acadian}, \textsf{canadien}, % \textsf{francais}, \textsf{frenchb} or \textsf{french} (which all do % essentially the same). Since it redefines the itemize environment % at the \cs{start\{document\}}, the definition of |itemize| made by % \package{paralist} is lost. There are three possible fixes: % \begin{compactenum} % \item Accept the |itemize| environment without optional argument.~|:(| % \item Use \cs{FrenchItemizeSpacingfalse} after loading \package{babel} which % will avoid the redefinition of |itemize| by \package{babel}.~|:/| % \item Figure out a way to combine the code in \package{babel} and % \package{paralist} and send the solution to me.~|:)| % \end{compactenum} % % Feel free to let me know about any problems, suggestions and wishes you have % concerning this package and its documentation. Praise is welcome, % too |;-)| The most recent version of this package can always be found on % CTAN or at |http://schandl.gmxhome.de/paralist/|. % % \section{Acknowledgments} % % I want to thank all the users who helped me with their % comments finding bugs and extending the package. A big ``Thank you'' goes to % David Carlisle, because there wouldn't be any optional arguments for the % enumerated environments without the code from his % \package{enumerate} package. Some pieces of code of the |inpara...| % environments are inspired by Mogens Lemvig Hansen's \package{shortlst} % package. % % \StopEventually % % \section{Implementation} % % At the beginning of this file, the |\ProvidesPackage| macro was executed. % So we only need to state that we need \LaTeXe. % \begin{macrocode} %<*package> \NeedsTeXFormat{LaTeX2e} % \end{macrocode} % % \subsection{Package Options} % % \changes{v1.2 (1999/01/10)}{1999/01/07}{Package options added} % \changes{v1.3 (1999/01/19)}{1999/01/18}{Option \textsf{increaseonly} added} % \changes{v2.1 (2001/09/20)}{2001/09/16}{Options \textsf{olditem} and % \textsf{oldenum} added} % \changes{v2.1 (2001/09/20)}{2001/09/16}{Options \textsf{newitem} and % \textsf{newenum} are set by default} % \changes{v2.1 (2001/09/20)}{2001/09/17}{Options \textsf{alwaysadjust}, % \textsf{neveradjust} and \textsf{neverdecrease} added; option % \textsf{increaseonly} only kept for compatibility} % \changes{v2.1 (2001/09/20)}{2001/09/16}{Options \textsf{flushleft} and % \textsf{flushright} added} % First we define the package options. The option \textsf{increaseonly} is % only kept for compatibility. % \begin{macrocode} \newif\if@plnewitem\@plnewitemtrue \newif\if@plnewenum\@plnewenumtrue \newif\if@plalwaysadjust\@plalwaysadjustfalse \newif\if@plneveradjust\@plneveradjustfalse \newif\if@plneverdecrease\@plneverdecreasefalse \newif\if@pldefblank\@pldefblankfalse \newif\if@plpointedenum\@plpointedenumfalse \newif\if@plpointlessenum\@plpointlessenumfalse \newif\if@plflushright\@plflushrighttrue \newif\if@plloadcfg\@plloadcfgtrue \DeclareOption{newitem}{\@plnewitemtrue} \DeclareOption{olditem}{\@plnewitemfalse} \DeclareOption{newenum}{\@plnewenumtrue} \DeclareOption{oldenum}{\@plnewenumfalse} \DeclareOption{alwaysadjust}{\@plalwaysadjusttrue} \DeclareOption{neveradjust}{\@plneveradjusttrue} \DeclareOption{neverdecrease}{\@plneverdecreasetrue} \DeclareOption{increaseonly}{\@plneverdecreasetrue \PackageWarningNoLine{Paralist}{Option increaseonly deprecated. \MessageBreak Use option neverdecrease instead}} \DeclareOption{defblank}{\@pldefblanktrue} \DeclareOption{pointedenum}{\@plpointedenumtrue} \DeclareOption{pointlessenum}{\@plpointlessenumtrue} \DeclareOption{cfg}{\@plloadcfgtrue} \DeclareOption{nocfg}{\@plloadcfgfalse} \DeclareOption{flushright}{\@plflushrighttrue} \DeclareOption{flushleft}{\@plflushrightfalse} \ExecuteOptions{newitem,newenum,cfg,flushright} \ProcessOptions\relax % \end{macrocode} % \changes{v2.3 (2002/03/10)}{2002/03/07}{Option \textsf{alwaysadjust} % overwrites \textsf{neveradjust}} % Make sure that \textsf{alwaysadjust} overwrites \textsf{neveradjust}. % \begin{macrocode} \if@plalwaysadjust\@plneveradjustfalse\fi % \end{macrocode} % % \subsection{New Skips} % % \changes{v1.2 (1999/01/10)}{1999/01/07}{Counters \texttt{asparaenum} and % \texttt{inparaenum} removed} % The new skips are all set to zero. % \changes{v1.1 (1998/10/18)}{}{Skips to adjust spacing in \texttt{compact...} % environments defined} % \begin{macrocode} \newlength{\pltopsep} \newlength{\plpartopsep} \newlength{\plitemsep} \newlength{\plparsep} \setlength{\pltopsep}{0pt} \setlength{\plpartopsep}{0pt} \setlength{\plitemsep}{0pt} \setlength{\plparsep}{0pt} % \end{macrocode} % % \subsection{Little ``Helper'' Macros} % % \begin{macro}{\if@empty} % \changes{v1.4 (1999/01/27)}{1999/01/19}{New macro} % A small macro to detect whether |#1| is empty. % \begin{macrocode} \def\if@empty#1#2#3{% \def\@tempa{#1}% \ifx\@tempa\@empty#2\else#3\fi} % \end{macrocode} % \end{macro} % \begin{macro}{\pl@item} % \changes{v1.2 (1999/01/10)}{1999/01/07}{New macro \cs{pl@item} used for all % \texttt{inpara...} environments} % \changes{v1.7 (1999/04/01)}{1999/04/01}{Use \cs{nobreakspace} instead of % \texttt{\textasciitilde}} % \changes{v1.7 (1999/04/01)}{1999/04/01}{Put argument in group to keep % e.\,g.~font changes local} % \changes{v2.1 (2001/09/20)}{2001/09/16}{Use \cs{makelabel}} % The following macro is used for all \texttt{inpara...} environments. % It adds space after the label only when the label has a positive width. % \begin{macrocode} \def\pl@item[#1]{% \if@noitemarg \@noitemargfalse \if@nmbrlist \refstepcounter{\@listctr}% \fi \fi \settowidth{\@tempdima}{#1}% \ifdim\@tempdima>\z@\makelabel{{#1}}\nobreakspace\fi \ignorespaces } % \end{macrocode} % \end{macro} % \begin{macro}{\paradescriptionlabel} % \changes{v2.1 (2001/09/20)}{2001/09/16}{New macro} % Similar to the \LaTeX\ macro \cs{descriptionlabel} we define a macro % for the description environments in and as paragraphs. % \begin{macrocode} \def\paradescriptionlabel#1{{\normalfont\bfseries #1}} % \end{macrocode} % \end{macro} % \begin{macro}{\enumlabel} % \changes{v2.1 (2001/09/20)}{2001/09/16}{New macro} % \changes{v2.2 (2001/09/30)}{2001/09/23}{Use \cs{hfil} instead of \cs{hss} % for flushleft} % \changes{v2.2 (2001/09/30)}{2001/09/30}{No need for \cs{llap} in flushright} % Similar to the \LaTeX\ macro \cs{descriptionlabel} we define a macro % for the enumerated environments depending on whether the label should be set % flush left or flush right. % \begin{macrocode} \if@plflushright \def\enumlabel#1{\hss#1} \else \def\enumlabel#1{#1\hfil} \fi % \end{macrocode} % \end{macro} % \begin{macro}{\itemlabel} % \changes{v2.1 (2001/09/20)}{2001/09/16}{New macro} % \changes{v2.2 (2001/09/30)}{2001/09/23}{Use \cs{hfil} instead of \cs{hss} % for flushleft} % \changes{v2.2 (2001/09/30)}{2001/09/30}{No need for \cs{llap} in flushright} % Similar to the \LaTeX\ macro \cs{descriptionlabel} we define a macro % for the itemized environments depending on whether the label should be set % flush left or flush right. % \begin{macrocode} \if@plflushright \def\itemlabel#1{\hss#1} \else \def\itemlabel#1{#1\hfil} \fi % \end{macrocode} % \end{macro} % % \subsection{Adjusting the Label Width} % % The width of the label is only adjusted either if the format of the label % was specified manually and the option \textsf{neveradjust} was \emph{not} % used or if the option \textsf{alwaysadjust} was used. Then % |\leftmargin|$\,n$ is set to the width of the label plus |\labelsep|. % The width of the label is only decreased if the option % \textsf{neverdecrease} was \emph{not} used. % % \changes{v2.3 (2002/03/10)}{2002/03/07}{New flags to decide on label width % adjustment} % \changes{v2.4 (2013/06/09)}{2013/06/09}{New flags to decide on wide % label width} % First we need some flags to indicate whether the label was redefined by the % environment and whether the label should be adjusted. % \begin{macrocode} \newif\if@plmylabel\@plmylabelfalse \newif\if@pldoadjust\@pldoadjustfalse % \end{macrocode} % % \begin{macro}{\@adjust@enum@labelwidth} % \changes{v1.3 (1999/01/19)}{1999/01/18}{Depending on option % \textsf{increaseonly}, \cs{leftmargin}$\,n$ may only be increased} % \changes{v2.1 (2001/09/20)}{2001/09/16}{New macro} % \changes{v2.3 (2002/03/10)}{2002/03/07}{Use new flags} % \changes{v2.4 (2013/06/09)}{2013/06/09}{Allow arbitrary widest label} % For the enumerated environments, the counter is first set by default % to 7 so that we get the width of `vii' if Roman numbering is in % force. However, this 7 can be replaced by an arbitrary number as an % option if this is not large enough. % \begin{macrocode} \def\@adjust@enum@labelwidth{% \if@plneveradjust\else \if@plalwaysadjust\@pldoadjusttrue\else \if@plmylabel\@pldoadjusttrue\fi \fi \fi \if@pldoadjust \setcounter{\@enumctr}{\@enum@widestlabel}% \settowidth{\@tempdima}{% \csname label\@enumctr\endcsname\hspace{\labelsep}}% % \end{macrocode} % \changes{v2.3 (2002/03/10)}{2002/03/10}{Use \cs{@listdepth} for $n$ in % \cs{leftmargin}$\,n$} % The \cs{leftmargin}$\,n$ has to be adjusted (where $n$ is \cs{@listdepth}) % but we first have to increase \cs{@listdepth} by one since the list has not % yet started. This is reset right afterwards. % \begin{macrocode} \advance\@listdepth by 1\relax \if@plneverdecrease \ifdim\@tempdima > \csname leftmargin\romannumeral\@listdepth\endcsname \csname leftmargin\romannumeral\@listdepth\endcsname \@tempdima \fi \else \csname leftmargin\romannumeral\@listdepth\endcsname \@tempdima \fi \advance\@listdepth by -1\relax \fi \@pldoadjustfalse \@plmylabelfalse} % \end{macrocode} % \end{macro} % \begin{macro}{\@adjust@item@labelwidth} % \changes{v1.3 (1999/01/19)}{1999/01/18}{\cs{leftmargin}$\,n$ adapted % according to the width of the symbol} % \changes{v1.3 (1999/01/19)}{1999/01/18}{Depending on option % \textsf{increaseonly}, \cs{leftmargin}$\,n$ may only be increased} % \changes{v2.1 (2001/09/20)}{2001/09/16}{New macro} % \changes{v2.3 (2002/03/10)}{2002/03/07}{Use new flags} % For itemized labels, no counter needs to be set. The label is hidden in a % macro the name of which is stored in \cs{@itemitem}. % \begin{macrocode} \def\@adjust@item@labelwidth{% \if@plneveradjust\else \if@plalwaysadjust\@pldoadjusttrue\else \if@plmylabel\@pldoadjusttrue\fi \fi \fi \if@pldoadjust \settowidth{\@tempdima}{% \csname\@itemitem\endcsname\hspace{\labelsep}}% % \end{macrocode} % \changes{v2.3 (2002/03/10)}{2002/03/10}{Use \cs{@listdepth} for $n$ in % \cs{leftmargin}$\,n$} % The \cs{leftmargin}$\,n$ has to be adjusted (where $n$ is \cs{@listdepth}) % but we first have to increase \cs{@listdepth} by one since the list has not % yet started. This is reset right afterwards. % \begin{macrocode} \advance\@listdepth by 1\relax \if@plneverdecrease \ifdim\@tempdima > \csname leftmargin\romannumeral\@listdepth\endcsname \csname leftmargin\romannumeral\@listdepth\endcsname \@tempdima \fi \else \csname leftmargin\romannumeral\@listdepth\endcsname \@tempdima \fi \advance\@listdepth by -1\relax \fi \@pldoadjustfalse \@plmylabelfalse} % \end{macrocode} % \end{macro} % % \subsection{Label of Enumerated Environments} % % \changes{v1.2 (1999/01/10)}{1999/01/07}{Added optional argument to all % enumerated environments} % It follows all the stuff for the optional argument of the enumerated % environments. The code and most of its documentation is basically % copied from David Carlisle's \package{enumerate} package. % % \begin{macro}{\pl@lab} % First we define an internal token register which is used to build up % the label command from the optional argument. % \begin{macrocode} \newtoks\pl@lab % \end{macrocode} % \end{macro} % \begin{macro}{\pl@qmark} % This just expands to a `?'. \cs{ref} will produce this, if no counter % is printed. % \begin{macrocode} \def\pl@qmark{?} % \end{macrocode} % \end{macro} % The next four macros build up the command that will print the % label. They each gobble one token or group from the optional argument % and add corresponding tokens to the register |\pl@lab|. They each end % with a call to |\pl@loop|, which starts the processing of the next % token. % \begin{macro}{\pl@label} % \changes{v1.8 (1999/04/29)}{1999/04/28}{Count the number of tokens} % Add the counter to the label. Argument |#2| will be one of the `special' % tokens |A a I i 1|, and is thrown away. |#1| will be a command % like \cs{Roman}. In every call \cs{@tempcnta} is increased, so we can % check at the end that exactly one counter was defined. % \begin{macrocode} \def\pl@label#1#2{% \edef\pl@the{\noexpand#1{\@enumctr}}% \pl@lab\expandafter{\the\pl@lab\csname the\@enumctr\endcsname}% \advance\@tempcnta1 \pl@loop} % \end{macrocode} % \end{macro} % \begin{macro}{\pl@space} % \begin{macro}{\pl@sp@ce} % Add a space to the label. The tricky bit is to gobble the space token, % as you can not do this with a macro argument. % \begin{macrocode} \def\pl@space{\afterassignment\pl@sp@ce\let\@tempa= } \def\pl@sp@ce{\pl@lab\expandafter{\the\pl@lab\space}\pl@loop} % \end{macrocode} % \end{macro} % \end{macro} % \begin{macro}{\pl@group} % Add a |{ }| group to the label. % \begin{macrocode} \def\pl@group#1{\pl@lab\expandafter{\the\pl@lab{#1}}\pl@loop} % \end{macrocode} % \end{macro} % \begin{macro}{\pl@other} % Add anything else to the label. % \begin{macrocode} \def\pl@other#1{\pl@lab\expandafter{\the\pl@lab#1}\pl@loop} % \end{macrocode} % \end{macro} % \begin{macro}{\pl@loop} % \begin{macro}{\pl@loop@} % The body of the main loop. % Eating tokens this way instead of using |\@tfor| lets you see % spaces and \emph{all} braces. |\@tfor| would treat |a| and % |{a}| as special, but not |{{a}}|. % \begin{macrocode} \def\pl@loop{\futurelet\pl@temp\pl@loop@} \def\pl@loop@{% \ifx A\pl@temp \def\@tempa{\pl@label\Alph }\else \ifx a\pl@temp \def\@tempa{\pl@label\alph }\else \ifx i\pl@temp \def\@tempa{\pl@label\roman }\else \ifx I\pl@temp \def\@tempa{\pl@label\Roman }\else \ifx 1\pl@temp \def\@tempa{\pl@label\arabic}\else \ifx \@sptoken\pl@temp \let\@tempa\pl@space \else \ifx \bgroup\pl@temp \let\@tempa\pl@group \else \ifx \@@@\pl@temp \let\@tempa\@gobble \else \let\@tempa\pl@other % \end{macrocode} % Hook for possible extensions. % \begin{macrocode} \pl@hook \fi\fi\fi\fi\fi\fi\fi\fi % \end{macrocode} % \end{macro} % Process the current token, then look at the next. % \begin{macrocode} \@tempa} % \end{macrocode} % \end{macro} % \begin{macro}{\pl@hook} % \changes{v1.6 (1999/03/27)}{1999/03/26}{Added extension hook} % Hook for possible extensions. % Some packages may want to extend the number of special characters % that are associated with counter representations. You can use % e.\,g.~Greek or Russian characters. Here is an example of a footnote % symbol counter, triggered by |*|. % % To enable a new counter type based on a letter, you just need % to add a new |\ifx| clause similar to the code above. To make % |*| trigger footnote symbol counting do the following. % % Initialize the hook, in case the package is loaded before % \package{paralist}.\\ % \tab|\providecommand\pl@hook{}| % % Add to the hook a new |\ifx| clause that associates |*| with the % |\fnsymbol| counter command. %\begin{verbatim} % \g@addto@macro\pl@hook{% % \ifx *\pl@temp % \def\@tempa{\pl@label\fnsymbol}% % \fi} %\end{verbatim} % This code sequence should work whether it is loaded before or after % the \package{paralist} package. Any number of new counter types may be added % in this way. % % At this point we just need to initialize the hook, taking care not % to overwrite any definitions another package may already have added. % \begin{macrocode} \providecommand\pl@hook{} % \end{macrocode} % \end{macro} % \begin{macro}{\@enumlabel@} % \changes{v1.8 (1999/04/29)}{1999/04/28}{Use token counter and take care % of extra bracket} % \changes{v2.1 (2001/09/20)}{2001/09/17}{Adjustment of label width moved to % a separate macro} % \changes{v2.3 (2002/03/10)}{2002/03/07}{Set new flags} % The following macro handles the optional argument of an enumerated % environment. Its first argument is the macro that should be called % after \cs{@enumlabel@} has done the job, the second one is the % optional argument from the calling environment. % \begin{macrocode} \def\@enumlabel@#1[#2]{% % \end{macrocode} % The flag is set that the environment redefines its label. % \begin{macrocode} \@plmylabeltrue % \end{macrocode} % We initialize the number of counter-defining tokens to 0. % Then \cs{pl@lab} and \cs{pl@the} are initialized. Later, \cs{pl@the} % will be used to define \cs{theenum}\,$n$. % \begin{macrocode} \@tempcnta0 \pl@lab{}% \let\pl@the\pl@qmark % \end{macrocode} % Now we analyze the second argument using a loop. % As we will explain in the definition of |asparaenum|, we had to add an % extra bracket |[| to the second argument, which we have to gobble % before we start processing it. The macro % \cs{@@@} is never expanded (or even defined), it is just used to detect % the end of the token list. % \begin{macrocode} \expandafter\pl@loop\@gobble#2\@@@ % \end{macrocode} % If there was no special token or several special tokens we issue a % warning. % \begin{macrocode} \ifnum\@tempcnta=1\else \PackageWarning{paralist}{Incorrect label; no or multiple counters.\MessageBreak The label is: \@gobble#2}% \fi % \end{macrocode} % \changes{v2.5 (2015/12/30)}{2015/12/30}{Add \%\ in last line to avoid excess space} % Define |\labelenum|$\,n$ and |\theenum|$\,n$. And here we define a % macro |\@enumwidestlabel@| so that if the document has |[|$n$|]| after % the beginning of the enumerate environment, the label width will be % determined by typesetting $n$ instead of the default 7. % \begin{macrocode} \expandafter\edef\csname label\@enumctr\endcsname{\the\pl@lab}% \expandafter\let\csname the\@enumctr\endcsname\pl@the \@ifnextchar[{\@enumwidestlabel@{#1}}{\@enumwidestlabel@{#1}[7]}% } \def\@enumwidestlabel@#1[#2]{% \def\@enum@widestlabel{#2}% % \end{macrocode} % Finally call the macro that finishes the \cs{begin} part of the % calling environment. % \begin{macrocode} #1} % \end{macrocode} % \end{macro} % % \subsection{Label of the Itemized Environment} % % \begin{macro}{\@itemlabel@} % \changes{v2.1 (2001/09/20)}{2001/09/17}{Adjustment of label width moved to % a separate macro} % \changes{v2.3 (2002/03/10)}{2002/03/07}{Set new flags} % The handling of the optional argument of itemized environments is a lot % easier. % \begin{macrocode} \def\@itemlabel@#1[#2]{% \@plmylabeltrue \def\pl@itemitem{#2}% \def\@itemitem{pl@itemitem}% #1} % \end{macrocode} % \end{macro} % % \subsection{Enumerated Environments} % % \begin{environment}{asparaenum} % \changes{v1.2 (1999/01/10)}{1999/01/07}{Rewritten} % \changes{v1.8 (1999/04/29)}{1999/04/28}{Add extra bracket to optional % argument} % The first environment formats the enumerated items as paragraphs. % Most of the skips are set to zero, the items are indented as if % they were paragraphs and |\makelabel| is redefined so that it % just prints the counter. % \begin{macrocode} \def\asparaenum{% \ifnum\@enumdepth>\thr@@ \@toodeep \else \advance\@enumdepth\@ne \edef\@enumctr{enum\romannumeral\the\@enumdepth}% \fi % \end{macrocode} % In the following line the second bracket |[| seems to be superfluous. % Here is why we need it. If \TeX\ finds an argument in curly braces % then it strips of the braces before handing the argument to the % macro \cs{@enumlabel@}. So the optional argument |[{\bfseries a}]| % would be accepted, although the counter is in a group. By adding % the bracket to the argument we will never have braces around the % whole argument. In the macro \cs{@enumlabel@} the bracket is % gobbled before the processing of the argument starts. % \begin{macrocode} \@ifnextchar[{\@enumlabel@{\@asparaenum@}[}{\@asparaenum@}} \def\@asparaenum@{% \expandafter\list\csname label\@enumctr\endcsname{% \usecounter{\@enumctr}% \labelwidth\z@ \labelsep.5em \leftmargin\z@ \parsep\parskip \itemsep\z@ \topsep\z@ \partopsep\parskip \itemindent\parindent \advance\itemindent\labelsep \def\makelabel##1{##1}}} \let\endasparaenum\endlist % \end{macrocode} % \end{environment} % \begin{environment}{inparaenum} % \changes{v1.0a (1998/10/13)}{}{Corrected definition of \cs{theinparaenum}} % \changes{v1.1 (1998/10/18)}{}{Make space after number non-breaking} % \changes{v1.2 (1999/01/10)}{1999/01/07}{Rewritten} % \changes{v1.8 (1999/04/29)}{1999/04/28}{Add extra bracket to optional % argument} % \changes{v2.1 (2001/09/20)}{2001/09/16}{Define \cs{makelabel}} % Now the enumerated environment within a paragraph. Since it is % not really a list we have to redefine |\@item|. % \begin{macrocode} \def\inparaenum{% \ifnum\@enumdepth>\thr@@ \@toodeep \else \advance\@enumdepth\@ne \edef\@enumctr{enum\romannumeral\the\@enumdepth}% \fi \@ifnextchar[{\@enumlabel@{\@inparaenum@}[}{\@inparaenum@}} \def\@inparaenum@{% \usecounter{\@enumctr}% \def\@itemlabel{\csname label\@enumctr\endcsname}% \let\@item\pl@item \def\makelabel##1{##1}% \ignorespaces} \let\endinparaenum\ignorespacesafterend % \end{macrocode} % \end{environment} % \begin{environment}{compactenum} % \changes{v1.1 (1998/10/18)}{}{Environment added} % \changes{v1.2 (1999/01/10)}{1999/01/07}{Rewritten} % \changes{v1.8 (1999/04/29)}{1999/04/28}{Add extra bracket to optional % argument} % \changes{v2.7 (2017/01/22)}{2017/01/22}{\cs{@enum@widestlabel@} must % be initialized in case \cs{@enumlabel@} is not called} % For the |compactenum| environment all vertical skips have to % be set to the \cs{pl...} values. % \begin{macrocode} \def\compactenum{% \ifnum\@enumdepth>\thr@@ \@toodeep \else \advance\@enumdepth\@ne \edef\@enumctr{enum\romannumeral\the\@enumdepth}% \fi \def\@enum@widestlabel{7}% \@ifnextchar[{\@enumlabel@{\@compactenum@}[}{\@compactenum@}} % \end{macrocode} % \changes{v2.1 (2001/09/20)}{2001/09/17}{Adjustment of label width done in % \cs{@compactenum@}} % \changes{v2.1 (2001/09/20)}{2001/09/17}{Set label width according to left % margin} % \changes{v2.1 (2001/09/20)}{2001/09/17}{Use \cs{enumlabel}} % \changes{v2.3a (2002/03/10)}{2002/03/10}{Use \cs{@listdepth} for $n$ in % \cs{leftmargin}$\,n$} % The width of the label is adjusted before starting the list if necessary. % \begin{macrocode} \def\@compactenum@{% \@adjust@enum@labelwidth \expandafter\list\csname label\@enumctr\endcsname{% \usecounter{\@enumctr}% \parsep\plparsep \itemsep\plitemsep \topsep\pltopsep \partopsep\plpartopsep \labelwidth \csname leftmargin\romannumeral\@listdepth\endcsname \advance\labelwidth-\labelsep \let\makelabel\enumlabel}} \let\endcompactenum\endlist % \end{macrocode} % \end{environment} % \begin{environment}{enumerate} % \changes{v1.2 (1999/01/10)}{1999/01/07}{Added} % \changes{v1.8 (1999/04/29)}{1999/04/28}{Add extra bracket to optional % argument} % \changes{v2.7 (2017/01/22)}{2017/01/22}{\cs{@enum@widestlabel@} must % be initialized in case \cs{@enumlabel@} is not called} % If the user has requested it, we redefine the |enumerate| environment. % \begin{macrocode} \if@plnewenum \def\enumerate{% \ifnum \@enumdepth >\thr@@ \@toodeep \else \advance\@enumdepth \@ne \edef\@enumctr{enum\romannumeral\the\@enumdepth}% \fi \def\@enum@widestlabel{7}% \@ifnextchar[{\@enumlabel@{\@enumerate@}[}{\@enumerate@}} % \end{macrocode} % \changes{v2.1 (2001/09/20)}{2001/09/17}{Adjustment of label width done in % \cs{@enumerate@}} % \changes{v2.1 (2001/09/20)}{2001/09/17}{Set label width according to left % margin} % \changes{v2.1 (2001/09/20)}{2001/09/17}{Use \cs{enumlabel}} % \changes{v2.3a (2002/03/10)}{2002/03/10}{Use \cs{@listdepth} for $n$ in % \cs{leftmargin}$\,n$} % The width of the label is adjusted before starting the list if necessary. % \begin{macrocode} \def\@enumerate@{% \@adjust@enum@labelwidth \expandafter\list\csname label\@enumctr\endcsname{% \usecounter{\@enumctr}% \labelwidth \csname leftmargin\romannumeral\@listdepth\endcsname \advance\labelwidth-\labelsep \let\makelabel\enumlabel}} \fi % \end{macrocode} % \end{environment} % % \subsection{Itemized Environments} % % \begin{environment}{asparaitem} % \changes{v1.2 (1999/01/10)}{1999/01/07}{Rewritten} % This is pretty much the same as |asparaenum|. We just don't need % a counter. % \begin{macrocode} \def\asparaitem{% \ifnum\@itemdepth>\thr@@ \@toodeep \else \advance\@itemdepth\@ne \edef\@itemitem{labelitem\romannumeral\the\@itemdepth}% \fi \@ifnextchar[{\@itemlabel@{\@asparaitem@}}{\@asparaitem@}} \def\@asparaitem@{% \expandafter\list\csname\@itemitem\endcsname{% \labelwidth\z@ \labelsep.5em \leftmargin\z@ \parsep\parskip \itemsep\z@ \topsep\z@ \partopsep\parskip \itemindent\parindent \advance\itemindent\labelsep \def\makelabel##1{##1}}} \let\endasparaitem\endlist % \end{macrocode} % \end{environment} % \begin{environment}{inparaitem} % \changes{v1.1 (1998/10/18)}{}{Make space after symbol non-breaking} % \changes{v1.2 (1999/01/10)}{1999/01/07}{Rewritten} % \changes{v2.1 (2001/09/20)}{2001/09/16}{Define \cs{makelabel}} % \changes{v2.6 (2016/08/07)}{2016/08/07}{Insert \cs{@nmbrlistfalse} to avoid increasing the enum counter} % Again the same as |inparaenum| without the counter stuff but with an % optional argument. % \begin{macrocode} \def\inparaitem{% \@nmbrlistfalse \ifnum\@itemdepth>\thr@@ \@toodeep \else \advance\@itemdepth\@ne \edef\@itemitem{labelitem\romannumeral\the\@itemdepth}% \fi \@ifnextchar[{\@itemlabel@{\@inparaitem@}}{\@inparaitem@}} \def\@inparaitem@{% \def\@itemlabel{\csname\@itemitem\endcsname}% \let\@item\pl@item \def\makelabel##1{##1}% \ignorespaces} \let\endinparaitem\ignorespacesafterend % \end{macrocode} % \end{environment} % \begin{environment}{compactitem} % \changes{v1.1 (1998/10/18)}{}{Environment added} % \changes{v1.2 (1999/01/10)}{1999/01/07}{Rewritten} % The |compactitem| environment is basically the same as the \LaTeX{} % original. All the vertical skips are set to the \cs{pl...} values. % \begin{macrocode} \def\compactitem{% \ifnum\@itemdepth>\thr@@ \@toodeep \else \advance\@itemdepth\@ne \edef\@itemitem{labelitem\romannumeral\the\@itemdepth}% \fi \@ifnextchar[{\@itemlabel@{\@compactitem@}}{\@compactitem@}} % \end{macrocode} % \changes{v2.1 (2001/09/20)}{2001/09/17}{Adjustment of label width done in % \cs{@compactitem@}} % \changes{v2.1 (2001/09/20)}{2001/09/17}{Set label width according to left % margin} % \changes{v2.1 (2001/09/20)}{2001/09/17}{Use \cs{itemlabel}} % \changes{v2.3a (2002/03/10)}{2002/03/10}{Use \cs{@listdepth} for $n$ in % \cs{leftmargin}$\,n$} % The width of the label is adjusted before starting the list if necessary. % \begin{macrocode} \def\@compactitem@{% \@adjust@item@labelwidth \expandafter\list\csname\@itemitem\endcsname{% \parsep\plparsep \itemsep\plitemsep \topsep\pltopsep \partopsep\plpartopsep \labelwidth \csname leftmargin\romannumeral\@listdepth\endcsname \advance\labelwidth-\labelsep \let\makelabel\itemlabel}} \let\endcompactitem\endlist % \end{macrocode} % \end{environment} % \begin{environment}{itemize} % \changes{v1.2 (1999/01/10)}{1999/01/07}{Added} % If the user has requested it, we redefine the |itemize| environment. % \begin{macrocode} \if@plnewitem \def\itemize{% \ifnum \@itemdepth >\thr@@ \@toodeep \else \advance\@itemdepth\@ne \edef\@itemitem{labelitem\romannumeral\the\@itemdepth}% \fi \@ifnextchar[{\@itemlabel@{\@itemize@}}{\@itemize@}} % \end{macrocode} % \changes{v2.1 (2001/09/20)}{2001/09/17}{Adjustment of label width done in % \cs{@itemize@}} % \changes{v2.1 (2001/09/20)}{2001/09/17}{Set label width according to left % margin} % \changes{v2.1 (2001/09/20)}{2001/09/17}{Use \cs{itemlabel}} % \changes{v2.3a (2002/03/10)}{2002/03/10}{Use \cs{@listdepth} for $n$ in % \cs{leftmargin}$\,n$} % The width of the label is adjusted before starting the list if necessary. % \begin{macrocode} \def\@itemize@{% \@adjust@item@labelwidth \expandafter\list\csname\@itemitem\endcsname{% \labelwidth \csname leftmargin\romannumeral\@listdepth\endcsname \advance\labelwidth-\labelsep \let\makelabel\itemlabel}} \fi % \end{macrocode} % \end{environment} % % \subsection{Descriptive Environments} % % \begin{environment}{asparadesc} % \changes{v2.1 (2001/09/20)}{2001/09/16}{New environment} % A bit easier than |asparaenum| since the label handling is easier. % \begin{macrocode} \def\asparadesc{% \list{}{% \labelwidth\z@ \labelsep.5em \leftmargin\z@ \parsep\parskip \itemsep\z@ \topsep\z@ \partopsep\parskip \itemindent\parindent \advance\itemindent\labelsep \let\makelabel\paradescriptionlabel}} \let\endasparadesc\endlist % \end{macrocode} % \end{environment} % \begin{environment}{inparadesc} % \changes{v2.1 (2001/09/20)}{2001/09/16}{New environment} % \changes{v2.6 (2016/08/07)}{2016/08/07}{Insert \cs{@nmbrlistfalse} to avoid increasing the enum counter} % Again a bit easier than |inparaenum| since the label handling is easier. % \begin{macrocode} \def\inparadesc{% \@nmbrlistfalse \let\@itemlabel\@empty \let\@item\pl@item \let\makelabel\paradescriptionlabel \ignorespaces} \let\endinparadesc\ignorespacesafterend % \end{macrocode} % \end{environment} % \begin{environment}{compactdesc} % \changes{v1.1 (1998/10/18)}{}{Environment added} % \changes{v1.2 (1999/01/10)}{1999/01/07}{Rewritten} % The |compactdesc| environment is copied from |article.cls| with the skips % set to the \cs{pl...} skips. % \begin{macrocode} \def\compactdesc{% \list{}{% \parsep\plparsep \itemsep\plitemsep \topsep\pltopsep \partopsep\plpartopsep \labelwidth\z@ \itemindent-\leftmargin \let\makelabel\descriptionlabel}} \let\endcompactdesc\endlist % \end{macrocode} % \end{environment} % % \subsection{Blank Environments} % % \begin{environment}{asparablank} % \changes{v1.2 (1999/01/10)}{1999/01/07}{Added} % This list formats its entries as if there was no list. Thus no test for % the list depth is performed. To avoid unnecessary white space, \cs{labelsep} % is set to zero. If the optional argument of \cs{item} is used, some % separating space has to inserted ``by hand''. % \begin{macrocode} \if@pldefblank \def\asparablank{% \list{}{% \labelwidth\z@ \labelsep\z@ \leftmargin\z@ \parsep\parskip \itemsep\z@ \topsep\z@ \partopsep\parskip \itemindent\parindent \advance\itemindent\labelsep \def\makelabel##1{##1}}} \let\endasparablank\endlist % \end{macrocode} % \end{environment} % \begin{environment}{inparablank} % \changes{v1.2 (1999/01/10)}{1999/01/07}{Added} % The |inparablank| environment handles the ``white space problem'' % automatically. % \begin{macrocode} \def\inparablank{% \let\@itemlabel\@empty \let\@item\pl@item \ignorespaces} \let\endinparablank\ignorespacesafterend \fi % \end{macrocode} % \end{environment} % % \subsection{Setting Defaults} % % Here are the macros to define the default labels and left margins % for itemized and enumerated environments. % \begin{macro}{\setdefaultitem} % \changes{v2.1 (2001/09/20)}{2001/09/19}{New macro} % The macro for the item labels just redefines \cs{labelitem}$\,n$. % \begin{macrocode} \def\setdefaultitem#1#2#3#4{% \if@empty{#1}{}{\def\labelitemi{#1}}% \if@empty{#2}{}{\def\labelitemii{#2}}% \if@empty{#3}{}{\def\labelitemiii{#3}}% \if@empty{#4}{}{\def\labelitemiv{#4}}} % \end{macrocode} % \end{macro} % \begin{macro}{\defaultitem} % \changes{v1.4 (1999/01/27)}{1999/01/19}{New macro} % \changes{v2.1 (2001/09/20)}{2001/09/17}{Macro deprecated and only kept for % compatibility} % This macro is deprecated and only kept for backward compatibility. % \begin{macrocode} \def\defaultitem{% \PackageWarning{Paralist}{Macro \protect\defaultitem\space deprecated. \MessageBreak Use macro \protect\setdefaultitem \space instead!! \MessageBreak Used} \setdefaultitem} % \end{macrocode} % \end{macro} % \begin{macro}{\setdefaultenum} % \changes{v2.1 (2001/09/20)}{2001/09/19}{New macro} % \changes{v2.3b (2002/03/18)}{2002/03/18}{Fix handling of flags} % The macro to define the enumerated labels uses the same mechanism % as the optional argument of the enumerated environments. First, we set % \cs{@enumctr} to |enum|$\,n$, then \cs{@enumlabel@} is used to format the % counter. As explained above we have to add the extra bracket |[| to avoid % losing braces |{}| around the whole argument. Note that the state of % \cs{if@alwaysadjust} has to be saved and restored. % \begin{macrocode} \newif\if@pltemp \def\setdefaultenum#1#2#3#4{% \if@plneveradjust\@pltemptrue\else\@pltempfalse\fi \@plneveradjusttrue \if@empty{#1}{}{% \def\@enumctr{enumi}% \@enumlabel@{\relax}[[#1]}% \if@empty{#2}{}{% \def\@enumctr{enumii}% \@enumlabel@{\relax}[[#2]}% \if@empty{#3}{}{% \def\@enumctr{enumiii}% \@enumlabel@{\relax}[[#3]}% \if@empty{#4}{}{% \def\@enumctr{enumiv}% \@enumlabel@{\relax}[[#4]}% \if@pltemp\@plneveradjusttrue\else\@plneveradjustfalse\fi \@plmylabelfalse \relax} % \end{macrocode} % \end{macro} % \begin{macro}{\defaultenum} % \changes{v1.4 (1999/01/27)}{1999/01/19}{New macro} % \changes{v1.8 (1999/04/29)}{1999/04/28}{Add extra bracket to argument of % \cs{@enumlabel@}} % \changes{v2.1 (2001/09/20)}{2001/09/17}{Macro deprecated and only kept for % compatibility} % This macro is deprecated and only kept for backward compatibility. % \begin{macrocode} \def\defaultenum{% \PackageWarning{Paralist}{Macro \protect\defaultenum\space deprecated. \MessageBreak Use macro \protect\setdefaultenum \space instead!! \MessageBreak Used} \setdefaultitem} % \end{macrocode} % \end{macro} % \begin{macro}{\setdefaultleftmargin} % \changes{v2.1 (2001/09/20)}{2001/09/17}{New macro} % Finally a macro to define all the left margins for the lists. % \begin{macrocode} \def\setdefaultleftmargin#1#2#3#4#5#6{% \if@empty{#1}{}{\leftmargini#1}% \if@empty{#2}{}{\leftmarginii#2}% \if@empty{#3}{}{\leftmarginiii#3}% \if@empty{#4}{}{\leftmarginiv#4}% \if@empty{#5}{}{\leftmarginv#5}% \if@empty{#6}{}{\leftmarginvi#6}% \relax} % \end{macrocode} % \end{macro} % \begin{macro}{\defaultleftmargin} % \changes{v1.4 (1999/01/27)}{1999/01/19}{New macro} % \changes{v2.1 (2001/09/20)}{2001/09/17}{Macro deprecated and only kept for % compatibility} % This macro is deprecated and only kept for backward compatibility. % \begin{macrocode} \def\defaultleftmargin#1#2#3#4{% \setdefaultleftmargin{#1}{#2}{#3}{#4}{}{}% \PackageWarning{Paralist}{Macro \protect\defaultleftmargin \space deprecated. \MessageBreak Use macro \protect\setdefaultleftmargin\space instead!! \MessageBreak But note that it has six arguments! \MessageBreak Used}} % \end{macrocode} % \end{macro} % % \subsection{Points or no Points?} % % \begin{macro}{\pl@pointxxxenum} % \changes{v2.0a (2001/03/03)}{2001/03/03}{New macro} % We define macros for the options \textsf{pointlessenum} and % \textsf{pointedenum}. First the common part consisting of the format of the % counters itself and the references. The references to an item of level N is % generated by using |\p@enumN\theenumN|, so we have to make all |\p@enumN|'s % do nothing. % \begin{macrocode} \def\pl@pointxxxenum{% \def\theenumi{\arabic{enumi}}% \def\theenumii{\theenumi.\arabic{enumii}}% \def\theenumiii{\theenumii.\arabic{enumiii}}% \def\theenumiv{\theenumiii.\arabic{enumiv}}% \def\p@enumi{}% \def\p@enumii{}% \def\p@enumiii{}% \def\p@enumiv{}} % \end{macrocode} % \end{macro} % \begin{macro}{\pl@pointedenum} % \changes{v2.0a (2001/03/03)}{2001/03/03}{New macro} % \begin{macro}{\pl@pointlessenum} % \changes{v2.0a (2001/03/03)}{2001/03/03}{New macro} % The format of the labels either adds a point or it doesn't. % \begin{macrocode} \def\pl@pointedenum{% \def\labelenumi{\theenumi.}% \def\labelenumii{\theenumii.}% \def\labelenumiii{\theenumiii.}% \def\labelenumiv{\theenumiv.}} \def\pl@pointlessenum{% \def\labelenumi{\theenumi}% \def\labelenumii{\theenumii}% \def\labelenumiii{\theenumiii}% \def\labelenumiv{\theenumiv}} % \end{macrocode} % \end{macro} \end{macro} % \begin{macro}{\pointedenum} % \changes{v2.0a (2001/03/03)}{2001/03/03}{New macro} % \begin{macro}{\pointlessenum} % \changes{v2.0a (2001/03/03)}{2001/03/03}{New macro} % Now the user level macros to turn the new feature on. % \begin{macrocode} \def\pointedenum{\pl@pointxxxenum\pl@pointedenum} \def\pointlessenum{\pl@pointxxxenum\pl@pointlessenum} % \end{macrocode} % \end{macro} \end{macro} % The options just use those user level macros globally. % \begin{macrocode} \if@plpointedenum\pointedenum\fi \if@plpointlessenum\pointlessenum\fi % \end{macrocode} % % \subsection{Configuration File} % % \changes{v1.6 (1999/03/27)}{1999/03/26}{Read configuration file in case it % exists} % Read the file |paralist.cfg| if it exists and the |nocfg| was not given. % \begin{macrocode} \if@plloadcfg \InputIfFileExists{paralist.cfg}{% \PackageInfo{Paralist}{% Using the configuration file paralist.cfg}}{} \fi % % \end{macrocode} % % \Finale