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authorKarl Berry <karl@freefriends.org>2013-02-13 23:23:48 +0000
committerKarl Berry <karl@freefriends.org>2013-02-13 23:23:48 +0000
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dvgloss (13feb13)
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+README for dvgloss 0.1
+
+DESCRIPTION
+===========
+Extensible macros for setting interlinear glossed text --- useful,
+for instance, for typing linguistics papers. The operative word here is
+"exstensible": few features are built in, but some flexible and powerful
+facilities are included for adding your own.
+
+LICENSE AND WHATNOT
+===================
+Copyright (C) 2013 Dan Bridges Velleman.
+
+This material is subject to the LaTeX Project Public License.
+
+FILES AND INSTALLATION
+======================
+The main files here are these two, which should be installed
+in the usual way:
+ dvgloss.ins
+ dvgloss.dtx
+
+There's also a .sty file and a pre-extracted documentation file:
+ dvgloss.sty
+ dvgloss.pdf
+
+And then there's this very README file, whose contents I dare not start
+describing for fear of infinite recursion:
+ README
+
+CONTACT
+=======
+Dan Bridges Velleman
+email: dvelleman at gmail dot com
+
+
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+% \iffalse
+%<package>\NeedsTeXFormat{LaTeX2e}
+%<package>\ProvidesPackage{dvgloss}[2012/08/06 v0.1 Flexible glossing commands]
+%<*driver>
+\documentclass{article}
+\usepackage{doc}
+\usepackage{dvgloss}
+\usepackage{expex}
+\usepackage{sverb}
+\EnableCrossrefs
+\RecordChanges
+\aboveglskip=-3pt
+\begin{document}
+ \DocInput{dvgloss.dtx}
+\end{document}
+%</driver>
+% \fi
+% \title{The \textsf{dvgloss} package}
+% \author{Dan Bridges Velleman}
+% \maketitle
+%\tableofcontents
+%\section{What it does}
+%This is a package that lets you set interlinear linguistic examples like
+%the one below:
+%\begin{demo}[w]{A linguistic example}
+%\gl{{K'a tee} ka-r-il ri achih ri jun keej xaa maa pwaq
+% k-u-kisii-j.}
+% {{suddenly} {\sc inc-a}3s-see the man the one horse
+% just {\sc exclam} money {\sc inc-a}3s-shit-{\sc ss}}
+%\ft{Suddenly, the man saw a horse that was just shitting money.}
+%\lb{Mondloch 1981}
+%\end{demo}
+%
+%Some characters have been set up as shortcuts for
+%various useful things within an example --- inserting a line break
+%(using {\tt /})
+%putting subscripts on brackets (\emph{e.g.}~\verb+]Contr+ in the example
+%below), etcetera.
+%
+%\begin{demo}[w]{Using a shortcut}
+%\gl{No [ morir\'e ]Contr / {sino que} [ vivir\'e ]Contr}
+% {not will.die but will.live}
+%\ft{You will not die, but will live.}
+%\end{demo}
+%What makes this package different from others that exist so far (and in
+% particular from
+%{\sf expex}, which offers a similar set of shortcuts) is that these
+%shortcuts are \emph{customizable}. You can declare new characters as shortcuts,
+%change the meanings of existing shortcuts, and so on. For instance, if the
+%slash hadn't already been set up as a newline character, you could make it
+%one like this:
+%\begin{verbatim}
+%\makeglshortcut / {\par}
+%\end{verbatim}
+%If you wanted to repurpose it --- let's say you've been using it to mark
+%prosodic boundaries, but you decide you want those to show up as the IPA
+%double-pipe character as in the example below ---
+%you could do that too.
+%
+%\begin{demo}[w]{Redefining a shortcut}
+%\begingroup
+%\makeglshortcut / {\unskip\quad$\|$\quad}
+%\gl{No [ morir\'e ]Contr / {sino que} [ vivir\'e ]Contr}
+% {not will.die rather will.live}
+%\ft{You will not die, but will live.}
+%\endgroup
+%\end{demo}
+%
+%Finally, for one-off situations where you don't want to define a new shortcut,
+%there is an ``escape character'' which lets you issue any command you want from
+%within an argument of \verb+\gl+. Suppose you redefine {\tt /} to generate the
+%double-pipe character, but then you run into a tricky formatting situation
+%where you really need to force a line break. Just say \verb+!{\par}+ --- or,
+%for that matter, \verb+!{\par\vspace{\jot}\mbox{}\qquad}+, if that's what
+%floats your boat --- and you'll get what you want. (The default escape character
+%is {\tt !}, but if you're a Khoisanist or otherwise need to start words with
+%a bang, you can redefine it to something else.)
+%\section{What it doesn't do}
+%\begin{itemize}
+%\item It doesn't handle example numbering. There are plenty of other packages
+% that do, so I doubt I'll bother to reinvent that particular wheel any time
+% soon.
+%\item It doesn't do three-line glosses, or anything bigger. This is a dumb
+% limit and could easily be removed --- but I probably won't get around to it
+% unless someone else asks, because two-line glosses are all I ever use.
+%\item Shortcuts or escaped commands can take arguments, and can (if you arrange
+% it right) take scope over more than one word of interlinear gloss; but there
+% are limits --- in particular, scope-taking commands can't be \emph{nested}.
+% This is a limit that could in principle be removed, but it would take some work.
+%\end{itemize}
+% So for instance, as an example of that last limit: you can define a pair of shortcut characters that will
+% cause a box to be drawn around any number of intervening words, as in the example below; but
+% you will not be able to use those shortcuts to produce nested boxes.
+%
+%\begin{demo}[w]{A scope-taking shortcut}
+%\gl{Los * frase-s nominal-es * est\'a-n en * caja-s. * No s\'e porqu\'e.}
+% {the phrase-pl nominal-pl are-3pl in box-pl not know.1sg why}
+%\ft{The noun phrases are in boxes. I don't know why.}
+%\end{demo}
+%
+%\section{How to use it}
+%\subsection{The basics}
+% \begin{macro}{\gl}
+%\begin{macro}{\ft}
+% The \verb+\gl+ macro takes two arguments. It treats each argument as a list of
+% (space-delimited) items, and aligns the items from the first argument atop the
+% items from the second.
+%
+% The \verb+\ft+ macro is for putting a \emph{free translation} after an
+% interlinear gloss. It takes a single argument.
+%
+%\begin{demo}[w]{A generic example}
+%\gl{dolorem ipsum quia dolor sit amet}
+% {pain.acc.sg itself.acc.sg because
+% because pain.nom.sg be.3sg.subj love.3sg}
+%\ft{``loves pain itself because it is pain''}
+%\end{demo}
+%
+%\end{macro}
+% \end{macro}
+%\begin{macro}{\lb}
+% The \verb+\lb+ macro gives you a ``label'' --- a bit of text set on the same line
+% as what came before (if there's room) but pushed right to the end of the line.
+% You can use this, among other things, for citations.
+%
+%\begin{demo}[w]{An example with a label}
+%\gl{dolorem ipsum quia dolor sit amet}
+% {pain.acc.sg itself.acc.sg because pain.nom.sg be.3sg.subj love.3sg}
+%\ft{loves pain itself just for being pain}
+%\lb{Cicero}
+%\end{demo}
+% If there isn't room for the label on one line, a line break will be added.
+%
+%\begin{demo}[w]{An example with a long label}
+%\gl{dolorem ipsum quia dolor sit amet}
+% {pain.acc.sg itself.acc.sg because pain.nom.sg be.3sg.subj love.3sg}
+%\ft{loves pain itself just for being pain}
+%\lb{Cicero, \emph{de Finibus Bonorum et Malorum}}
+%\end{demo}
+%\end{macro}
+%
+%\subsection{Grouping}
+%You can use curly braces to group multiple words together; \verb+\gl+ will
+% then treat them like a single word.
+%
+%\begin{demo}{Grouping two words together}
+%\gl{Edormi crapulam}
+% {{sleep off} hangover}
+%\ft{``Sleep off that hangover.''}
+%\lb{Cicero, Philippic 2 30}
+%\end{demo}
+%
+%The \verb+\gl+ macro ignores spaces in all the same places that \LaTeX\ normally
+%ignores spaces --- for instance after a control sequence. To make sure that
+%a space after a control sequence will be recognized, wrap the control sequence
+%in curly braces, as in the first two words below.
+%
+%\begin{demo}{Spaces ignored after control sequences}
+%\gl{{\aa} {n\aa} Bl\aa-\aa s-en}
+% {to reach blue-ridge-def}
+%\ft{to reach Bl\aa\aa sen}
+%\end{demo}
+
+%\subsection{Prebuilt shortcuts}
+% For a shortcut character to do anything at all, (i) it must be in the first
+% argument of \verb+\gl+, and (ii) it must be at the beginning of a word.
+%
+% If the shortcut character has non-space characters after it, they will be
+% treated as an argument. The right-bracket shortcut which we saw back in
+% \S1 is an example of this: if you type \verb+]Contr+, then \verb+Contr+ is
+% treated as the shortcut's argument --- which in this case means it's typeset
+% as a subscript.
+%
+% \begin{itemize}
+% \item[\tt /] Insert a line break. The argument, if present, specifies an
+% amount of extra vertical space to be added afterward.
+% \item[{$\tt [$}] Insert a left bracket in the top line, with nothing aligned
+% with it below. The argument, if present, specifies a label to be set as a
+% subscript to the left bracket.
+% \item[{$\tt ]$}] As above, but insert a right bracket.
+% \item[\tt * *] Everything between the two asterisks is set with a
+% \verb+\framebox+ around it. If an argument is present after the second
+% asterisk, it's set as a label on top of the \verb+\framebox+.
+% \end{itemize}
+%
+%\subsection{New shortcuts}
+%\begin{macro}{\makeglshortcut}
+%To define a new shortcut along the lines of \verb+/+ and \verb+[+, use the command
+%\verb+\makeglshortcut+. It takes two arguments --- the first is the character you
+%want to turn into a shortcut, the second is the macro code that will be executed when
+%that character is encountered. If the shortcut character is encountered with other,
+%non-space characters after it, those will be passed to the macro code you supply as
+%an argument --- so you can capture those characters as \verb+#1+.
+% (If you try to do something with \verb+#1+ but the user hasn't supplied an argument,
+% then \verb+#1+will be empty. You might want to test for this --- as in the example
+% below --- if this is an issue. If the user does supply an argument, but you don't
+% do anything with it, then that's not a problem --- the argument will be silently
+% discarded.)
+%\end{macro}
+%We've already seen an example of a shortcut definition that doesn't use an argument.
+%\begin{verbatim}
+%\makeglshortcut / {\par}
+%\end{verbatim}
+%Here's an example of one which does.
+%\begin{verbatim}
+%\makeglshortcut / {\par\ifx#1\empty\else\vskip#1\fi}
+%\end{verbatim}
+%
+%Shortcuts have to be single characters. \verb+\makeglshortcut{somethingverylong}{code}+ will
+%not do what you want.
+%\begin{macro}{\makeglsurround}
+%To define a new shortcut along the lines of \verb+*+ --- a set of delimiters which can surround
+% multiple
+%words of glossed text and ``take scope'' over them --- use the command \verb+\makeglsurround+.
+%It takes three arguments: the left-hand delimiter, the right-hand delimiter, and the code
+%that will be executed when they're encountered. The two delimiters can be the same --- as
+%with \verb+*+, above --- but they don't have to be.
+%
+%If there are extra non-space characters after the left-hand delimiter, they are passed in as
+%argument \verb+#1+. The characters between the two delimiters are passed in as argument
+%\verb+#2+. Extra non-space characters after the right-hand delimiter are passed in as argument
+%\verb+#3+. You'll almost certainly want to do something with \verb+#2+, but ignoring \verb+#1+
+%and \verb+#3+ is completely fine.
+%\end{macro}
+%As an example, here's how the asterisk shortcut was defined:
+%\begin{verbatim}
+%\makeglsurround ** {%
+% \rlap{\raisebox{1.5em}{\footnotesize\sf#3}}%
+% \fbox{\noglstrut#2\unskip}\glspace}
+%\end{verbatim}
+%
+%\subsection{The escape character}
+%Spacing and line-beaking commands, among others, need to be ``escaped'' if you want to use
+%them inside of \verb+\gl+. (See \S4 for an explanation of why this is. For now, just
+%trust me.) The escape character by default is \verb+!+, and it's best to enclose whatever
+%comes after it in curly braces. So you could use \verb+!{\par)}+ to insert a new line if
+%you'd already redefined \verb+/+, or \verb+!{\qquad}+ to insert some extra horizontal space.
+%
+%\macro{\glescape}
+%If you want to change the escape character, redefine \verb+\glescape+. Like shortcuts,
+%the escape has to be a single character. \verb+\def\glescape{averylongescape}+ will not
+%do what you want.
+%\section{What's going on}
+%
+% Internally, there is a command called \verb+\glossword+ which is responsible for stacking
+% two words on top of one another. The arguments you give to the \verb+\gl+ command are
+% converted into a series of \verb+\glossword+s, like so:
+% \begin{verbatim}
+% \gl{a b c d}{1 2 3 4}
+% ===>
+% \glossword{a}{1}
+% \glossword{b}{2}
+% \glossword{c}{3}
+% \glossword{d}{4}
+% \end{verbatim}
+%
+% Normally, command sequences that appear inside of \verb+\gl+ will be wrapped up inside a
+% \verb+\glossword+. Sometimes this is what you want.
+% \begin{verbatim}
+% \gl{a b \bf c d}{1 2 3 4}
+% ===>
+% \glossword{a}{1}
+% \glossword{b}{2}
+% \glossword{\bf c}{3}
+% \glossword{d}{4}
+% \end{verbatim}
+% But sometimes it is really not at all what you want.
+% \begin{verbatim}
+% \gl{a b \par c d}{1 2 3 4}
+% ===>
+% \glossword{a}{1}
+% \glossword{b}{2}
+% \glossword{\par c}{3}
+% \glossword{d}{4}
+% \end{verbatim}
+%
+% So we need a way to get a command like \verb+\par+ to show up \emph{outside} of
+% a \verb+\glossword+. That's what the escape character is for.
+% \begin{verbatim}
+% \gl{a b !{\par} c d}{1 2 3 4}
+% ===>
+% \glossword{a}{1}
+% \glossword{b}{2}
+% \par
+% \glossword{c}{3}
+% \glossword{d}{4}
+% \end{verbatim}
+%
+% The expansion of a shortcut character also ends up outside of any \verb+\glossword+s.
+% \begin{verbatim}
+% \gl{a b / c d}{1 2 3 4}
+% ===>
+% \glossword{a}{1}
+% \glossword{b}{2}
+% \par
+% \glossword{c}{3}
+% \glossword{d}{4}
+% \end{verbatim}
+%
+% \StopEventually{}
+%\section{Code}
+% To begin with we set up temporary token list registers, and some spacing and formatting parameters.
+% \begin{macrocode}
+\newtoks\ta\newtoks\tb
+\newdimen\glhangindent\glhangindent=2em
+\newdimen\betweenglskip\betweenglskip=1\jot
+\newdimen\withinglskip\withinglskip=0pt
+\newdimen\aboveglftskip\aboveglftskip=2\jot
+\newdimen\aboveglskip\aboveglftskip=2\jot
+\newdimen\glstrutheight\newdimen\glstrutdepth
+\def\glspace{\penalty0\hspace{1ex plus 2em minus 2pt}}
+\def\everygla{\itshape}
+\def\everyglb{}
+% \end{macrocode}
+% We also specify an escape character.
+% \begin{macrocode}
+\def\glescape{!}
+% \end{macrocode}
+%
+%\begin{macro}{\addtokens}
+%\begin{macro}{\popoff}
+% Here's some helper macros for wrangling lists in which the items are separated
+% by spaces.
+% \begin{macrocode}
+\long\def\addtokens#1\to#2{\ta={#1}\tb=\expandafter{#2}\edef#2{\the\tb\the\ta}}
+\def\pop#1\to#2{\expandafter\popoff#1\to#2\remainderin#1}
+\long\def\popoff#1 #2\to#3\remainderin#4{#3={#1}\def#4{#2}}
+% \end{macrocode}
+%\end{macro}
+%\end{macro}
+%\begin{macro}{\split}
+%\begin{macro}{\istchar}
+%\begin{macro}{\restchars}
+% Here's one
+% for splitting off a single token from a longer string. If you
+% execute \verb+\split{Lorem}+, then the \verb+L+ is stored in
+% \verb+\istchar+ and the rest of the word --- \verb+orem+ --- is stored in
+% \verb+\restchars+.
+% \begin{macrocode}
+\long\def\split#1{\expandafter\ssplit#1\xyzzy}
+\long\def\ssplit#1#2\xyzzy{\gdef\istchar{#1}\gdef\restchars{#2}}
+% \end{macrocode}
+%\end{macro}
+%\end{macro}
+%\end{macro}
+%
+%\begin{macro}{\ifnotin}
+% There's one truly devious helper macro here: a really tricky way of testing
+% whether one serious of tokens occurs
+% within another. This is cribbed from the doc package, which credits Michael
+% Spivak with the original invention.
+% \begin{macrocode}
+\def\ifnotin#1#2{%
+ \def\@ifnotin##1#1##2##3\zyzzy{\ifx\ifnotfound##2}%
+ \expandafter\@ifnotin#2#1\notfound\zyzzy}
+% \end{macrocode}
+%\end{macro}
+%\begin{macro}{\ifspecial}
+%\begin{macro}{\checkspecial}
+%\begin{macro}{\makespecial}
+% We need this bit of deviousness because we're going to keep a list of characters that have been
+% declared as special shortcuts. \verb+\makespecial+ adds something to the list;
+% \verb+\checkspecial+ checks whether it's on the list (using \verb+\ifnotin+) and stores the answer in
+% \verb+\ifspecial+.
+% \begin{macrocode}
+\newif\ifspecial
+\def\dvglspecials{}
+\def\checkspecial#1{%
+ \ifnotin#1{\dvglspecials}\specialfalse\else\specialtrue\fi}
+\def\makespecial#1{%
+ \xdef\dvglspecials{\dvglspecials#1}}
+% \end{macrocode}
+%\end{macro}
+%\end{macro}
+%\end{macro}
+%
+%\subsection{Glossing}
+%\begin{macro}{\glossword}
+% First we define the basic formatting macro: it stacks a word and its gloss
+% atop one another.
+% \begin{macrocode}
+\def\glossword#1#2{%
+ \mbox{\vtop{\halign{##\hfil\cr\everygla#1\strut\cr\everyglb#2\strut\cr}}}%
+ \glstrut\glspace}
+% \end{macrocode}
+%\end{macro}
+%\begin{macro}{\zipper}
+% Now we have the rearranging macro.
+% To use a functional programming analogy:
+% \verb+\zipper\a\and\b\to\c+ basically means \verb+c = zipWith(glossword) a b+.
+% In other words, if \verb+\a+ is a list macro containing the tokens \verb+1 2 3+
+% and \verb+\b+ is a list macro containing the tokens \verb+4 5 6+, and we execute
+% \verb+\zipper\a\and\b\to\c+, then \verb+\c+ will end up containing
+% \verb+\glossword{1}{4}\glossword{2}{5}\glossword{3}{6}+.
+%
+% In fact, though, \verb+\zipper+ is not quite \verb+zipWith+. It also catches
+% ``special'' or escaped tokens in its first argument and adds them to the output
+% \emph{without} pairing them off or wrapping them in a \verb+\glossword+.
+% \begin{macrocode}
+\def\zipper#1\and#2\to#3{%
+% \end{macrocode}
+% If there's any items left on list \#1, pull one off (storing it in
+% \verb+\ta+) and split off its first token so we can peek and see if it's an
+% escape character or a special character.
+% \begin{macrocode}
+ \ifx\empty#1\else%
+ \pop#1\to\ta%
+ \def\istchar{}\def\restchar{}%
+ \edef\temp{\the\ta}\split\temp%
+% \end{macrocode}
+% If that first token is an escape character, we pass the rest of the item through
+% to the output.
+% \begin{macrocode}
+ \ifx\istchar\glescape\expandafter\addtokens\restchars\to#3%
+% \end{macrocode}
+% If that first token is a special character, we convert it into a control sequence
+% and make the remaining characters in the item into its argument.
+% \begin{macrocode}
+ \else%
+ \expandafter\checkspecial\istchar\ifspecial%
+ \expandafter\addtokens\csname gl\istchar\endcsname\to#3%
+ \expandafter\addtokens\expandafter<\restchars>\to#3%
+% \end{macrocode}
+% If neither of those two conditions hold, then we're just building a normal
+% glossword. That means we should also pull an item off of list \#2, storing it
+% in \verb+\tb+.
+% \begin{macrocode}
+ \else
+ \ifx\empty#2\else%
+ \pop#2\to\tb%
+% \end{macrocode}
+% Finally, we wrap the contents of \verb+\ta+ and \verb+\tb+ in a
+% \verb+\glossword+ command and pass it to the output.
+% Here we need to be careful: we want to expand \verb+\the\ta+ and \verb+\the\tb+
+% \emph{once} --- to \emph{get} their contents. But having gotten their contents,
+% we don't want to do any further expansion.\footnote{Why not? Because trying to
+% expand an unexpandable macro here would be messy and unpleasant.}
+% \begin{macrocode}
+ \edef\temp{\noexpand\glossword{\the\ta}{\the\tb}}%
+ \expandafter\addtokens\temp\to#3%
+ \fi%
+ \fi%
+ \fi%
+ \zipper#1\and#2\to#3%
+ \fi%
+}
+% \end{macrocode}
+%\end{macro}
+%\begin{macro}{\gl}
+% Based on \verb+\zipper+, we can define a user-friendly gloss command: take
+% two arguments, \verb+\zipper+ them together, call \verb+\fixglstrut+ (see below)
+% to make sure everything is spaced real nice, and
+% send everything off to be typeset.
+% \begin{macrocode}
+\long\def\gl#1#2{%
+ \begingroup%
+ \def\x{#1 }\def\y{#2 }\def\z{}%
+ \zipper\x\and\y\to\z%
+ \fixglstrut%
+ \ifvmode\vskip\aboveglskip\fi\z%
+ \endgroup%
+}
+% \end{macrocode}
+%\end{macro}
+%\begin{macro}{\fixglstrut}
+%\begin{macro}{\noglstrut}
+% The \verb+\fixglstrut+ command is issued in \verb+\gl+ right before we begin
+% typesetting. It sets \verb+\glstrut+ to be as tall as a normal glossbox at
+% the current font size \emph{plus} the current value of \verb+\betweenglskip+.
+% Sometimes we'll also want to be able to suppress \verb+\glstrut+ temporarily
+% as a way of preventing the \verb+\betweenglskip+ space from being inserted.
+% \verb+\noglstrut+ does that. (It's temporary because \verb+\fixglstrut+ will
+% be called again at the beginning of the next gloss and things will go back to
+% normal. If you issue \verb+\noglstrut+ within a group, it's of course even
+% temporary-er than that.)
+% \begin{macrocode}
+\def\fixglstrut{%
+ \def\glstrut{}%
+ \setbox0=\hbox{\glossword{}{}}%
+ \glstrutheight=\ht0%
+ \glstrutdepth=\dp0%
+ \advance\glstrutdepth by \betweenglskip%
+ \global\edef\glstrut{\vrule height\glstrutheight width0pt depth\glstrutdepth}}
+
+\def\noglstrut{\def\glstrut{}}
+% \end{macrocode}
+%\end{macro}
+%\end{macro}
+%\begin{macro}{\ft}
+% Usually after an interlinear gloss there's a line of ``free translation.''
+% This is a user-facing command for setting that free translation line --- or,
+% really, for setting \emph{anything} that needs to come on a new line right after
+% an interlinear gloss. The only time this matters is when \verb+betweenglskip+
+% and \verb+belowglskip+ are different sizes.
+% \begin{macrocode}
+\def\ft#1{\nobreak\par\nobreak\vskip-\betweenglskip\vskip\aboveglftskip #1}
+% \end{macrocode}
+%\end{macro}
+%\begin{macro}{\lb}
+% Here's a labeling macro, swiped from the \TeX book.
+% \begin{macrocode}
+\def\lb#1{{\unskip\nobreak\hfil\penalty0\hskip2em\mbox{}\nobreak\hfill\mbox{#1}}}
+% \end{macrocode}
+%\end{macro}
+%\subsection{Declaring shortcuts}
+% We have a macro \verb+\makespecial+ which will tell the parser ``treat
+% this character as special.''
+%
+% But that alone won't get us anywhere interesting. We also need to \emph{define}
+% the macro that will be executed when the special character in question is
+% encountered. And it would be nice if we could wrap both steps --- calling
+% \verb+\makespecial+ and defining the macro --- in a user-friendly package.
+% That's what this last section does.
+%
+% Suppose we want to declare {\tt /} as a shortcut character which inserts
+% a line break. Step one is simple:
+% \begin{center}
+% \verb+\makespecial{/}+
+% \end{center}
+% Now let's consider how the parser will respond after we've done this.
+% Suppose we then execute this command:
+% \begin{center}
+% \verb+\gl{a b * c}{1 2 3}+
+% \end{center}
+% The output which is sent to be typeset will look like this
+% \begin{center}
+% \verb+\glossword{a}{1}+\\
+% \verb+\glossword{b}{2}+\\
+% \verb+ \gl/<>+\\
+% \verb+\glossword{c}{3}+\\
+% \end{center}
+% where \verb+\gl/+ is a control sequence --- one which could not normally be
+% input directly. And if we execute the command
+% \begin{center}
+% \verb+\gl{a b /argument c}{1 2 3}+
+% \end{center}
+% The output which is sent to be typeset will look like this:
+% \begin{center}
+% \verb+\glossword{a}{1}+\\
+% \verb+\glossword{b}{2}+\\
+% \verb+ \gl/<argument>+\\
+% \verb+\glossword{c}{3}+\\
+% \end{center}
+%
+% Step two, then, is to define a macro that will do something useful in those
+% contexts. If the slash were a normal character, this would be easy:
+% \begin{center}
+% \verb+\def\gl/<#1>{\par\ifx#1\empty\else\vskip{#1}\fi}+
+% \end{center}
+% But since the slash isn't a normal character, we need to do it this way instead:
+% \begin{center}
+% \verb+\expandafter\def\csname gl/\endcsname<#1>{\par\ifx#1\empty\else\vskip{#1}\fi}+
+% \end{center}
+% \begin{macro}{\makeglshortcut}
+% Well, that's just what \verb+\makeglshortcut+ does: carries out Step One and
+% Step Two for an arbitrary character and arbitrary macro code.
+% \begin{macrocode}
+\long\def\makeglshortcut#1#2{%
+ \makespecial{#1}%
+ \expandafter\gdef\csname gl#1\endcsname<##1>{#2}}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{/}
+% Here are a few examples of \verb+\makeglshortcut+ in action. To make the slash
+% into a newline character, like we did in our example, the user-friendly way to
+% do it is this:
+% \begin{macrocode}
+\makeglshortcut/{\par\ifx#1\empty\else\vskip{#1}\fi}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{[ ]}
+% We declare that square brackets in the input will give square brackets in the output --- but with
+% nice spacing, and an optional argument set as a subscript.
+% \begin{macrocode}
+\makeglshortcut[{[$_\textrm{\footnotesize#1}$\thinspace}
+\makeglshortcut]{\unskip\thinspace]$_\textrm{\footnotesize#1}$\glspace}
+% \end{macrocode}
+% \end{macro}
+%
+% This is where it gets a little hairy. We also want to be able to set up
+% shortcut characters that turn into the left- and right-hand sides of a
+% \emph{delimited macro}. For instance, suppose we want to be able to use
+% asterisks as shortcuts, such that everything in between
+% two asterisks is put into a \verb+\framebox+. Well, step one is as easy
+% as it was before.
+%\begin{center}
+%\verb+\makespecial{*}+
+%\end{center}
+% And if the asterisk were a normal character, step two would also be
+% reasonably easy.
+%\begin{center}
+%\verb+\def\gl*<#1>#2\gl*<#3>{\framebox{#2}}+
+%\end{center}
+% \begin{macro}{makeglsurround}
+% But as before, because the asterisk is not a normal
+% character, we need to invoke \verb+\csname+. And this time, it's ugly:
+% \begin{macrocode}
+\long\def\makeglsurround#1#2#3{%
+ \xdef\dvglspecials{\dvglspecials#1#2}%
+ \ta=\expandafter{\csname gl#1\endcsname}%
+ \tb=\expandafter{\csname gl#2\endcsname}%
+ \expandafter\expandafter\expandafter\gdef%
+ \expandafter\expandafter\the\ta%
+ \expandafter<\expandafter##\expandafter1\expandafter>%
+ \expandafter##\expandafter2\the\tb<##3>{#3}}
+% \end{macrocode}
+% \end{macro}
+%\begin{macro}{* *}
+% Luckily, the user is protected from that ugliness. Here's a slightly more complicated
+% version of that \verb+\framebox+-making macro, with elegant spacing and an optional
+% argument set as a label on top of the frame. Note the use of \verb+\noglstrut+
+% here to prevent extra space from ending up \emph{inside} the frame.
+
+% \begin{macrocode}
+\makeglsurround ** {%
+ \rlap{\raisebox{1.5em}{\footnotesize\sf#3}}%
+ \fbox{\noglstrut#2\unskip}\glspace}
+% \end{macrocode}
+% \end{macro}
+% \Finale
diff --git a/Master/texmf-dist/source/latex/dvgloss/dvgloss.ins b/Master/texmf-dist/source/latex/dvgloss/dvgloss.ins
new file mode 100644
index 00000000000..2b288817a11
--- /dev/null
+++ b/Master/texmf-dist/source/latex/dvgloss/dvgloss.ins
@@ -0,0 +1,51 @@
+%%
+%% Copyright (C) 2013 by Dan Bridges Velleman
+%%
+%% This file may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either
+%% version 1.2 of this license or (at your option) any later
+%% version. The latest version of this license is in:
+%%
+%% http://www.latex-project.org/lppl.txt
+%%
+%% and version 1.2 or later is part of all distributions of
+%% LaTeX version 1999/12/01 or later.
+%%
+\input docstrip.tex
+\keepsilent
+\usedir{tex/latex/dvgloss}
+\preamble
+
+This is a generated file.
+
+Copyright (C) 2013 by Dan Bridges Velleman
+
+This file may be distributed and/or modified under the
+conditions of the LaTeX Project Public License, either
+version 1.2 of this license or (at your option) any later
+version. The latest version of this license is in:
+
+http://www.latex-project.org/lppl.txt
+
+and version 1.2 or later is part of all distributions of
+LaTeX version 1999/12/01 or later.
+
+\endpreamble
+\generate{\file{dvgloss.sty}{\from{dvgloss.dtx}{package}}}
+\obeyspaces
+
+\Msg{****************************************************}
+\Msg{* *}
+\Msg{* To finish the installation you have to move the *}
+\Msg{* following file into a directory searched by TeX: *}
+\Msg{* *}
+\Msg{* dvgloss.sty *}
+\Msg{* *}
+\Msg{* To produce the documentation run the file *}
+\Msg{* dvgloss.dtx through LaTeX. *}
+\Msg{* *}
+\Msg{* Lorem ipsum! Dolor sit amet! *}
+\Msg{* *}
+\Msg{****************************************************}
+
+\endbatchfile
diff --git a/Master/texmf-dist/tex/latex/dvgloss/dvgloss.sty b/Master/texmf-dist/tex/latex/dvgloss/dvgloss.sty
new file mode 100644
index 00000000000..2ab853e35f0
--- /dev/null
+++ b/Master/texmf-dist/tex/latex/dvgloss/dvgloss.sty
@@ -0,0 +1,114 @@
+%%
+%% This is file `dvgloss.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% dvgloss.dtx (with options: `package')
+%%
+%% This is a generated file.
+%%
+%% Copyright (C) 2013 by Dan Bridges Velleman
+%%
+%% This file may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either
+%% version 1.2 of this license or (at your option) any later
+%% version. The latest version of this license is in:
+%%
+%% http://www.latex-project.org/lppl.txt
+%%
+%% and version 1.2 or later is part of all distributions of
+%% LaTeX version 1999/12/01 or later.
+%%
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{dvgloss}[2012/08/06 v0.1 Flexible glossing commands]
+
+\newtoks\ta\newtoks\tb
+\newdimen\glhangindent\glhangindent=2em
+\newdimen\betweenglskip\betweenglskip=1\jot
+\newdimen\withinglskip\withinglskip=0pt
+\newdimen\aboveglftskip\aboveglftskip=2\jot
+\newdimen\aboveglskip\aboveglftskip=2\jot
+\newdimen\glstrutheight\newdimen\glstrutdepth
+\def\glspace{\penalty0\hspace{1ex plus 2em minus 2pt}}
+\def\everygla{\itshape}
+\def\everyglb{}
+\def\glescape{!}
+\long\def\addtokens#1\to#2{\ta={#1}\tb=\expandafter{#2}\edef#2{\the\tb\the\ta}}
+\def\pop#1\to#2{\expandafter\popoff#1\to#2\remainderin#1}
+\long\def\popoff#1 #2\to#3\remainderin#4{#3={#1}\def#4{#2}}
+\long\def\split#1{\expandafter\ssplit#1\xyzzy}
+\long\def\ssplit#1#2\xyzzy{\gdef\istchar{#1}\gdef\restchars{#2}}
+\def\ifnotin#1#2{%
+ \def\@ifnotin##1#1##2##3\zyzzy{\ifx\ifnotfound##2}%
+ \expandafter\@ifnotin#2#1\notfound\zyzzy}
+\newif\ifspecial
+\def\dvglspecials{}
+\def\checkspecial#1{%
+ \ifnotin#1{\dvglspecials}\specialfalse\else\specialtrue\fi}
+\def\makespecial#1{%
+ \xdef\dvglspecials{\dvglspecials#1}}
+\def\glossword#1#2{%
+ \mbox{\vtop{\halign{##\hfil\cr\everygla#1\strut\cr\everyglb#2\strut\cr}}}%
+ \glstrut\glspace}
+\def\zipper#1\and#2\to#3{%
+ \ifx\empty#1\else%
+ \pop#1\to\ta%
+ \def\istchar{}\def\restchar{}%
+ \edef\temp{\the\ta}\split\temp%
+ \ifx\istchar\glescape\expandafter\addtokens\restchars\to#3%
+ \else%
+ \expandafter\checkspecial\istchar\ifspecial%
+ \expandafter\addtokens\csname gl\istchar\endcsname\to#3%
+ \expandafter\addtokens\expandafter<\restchars>\to#3%
+ \else
+ \ifx\empty#2\else%
+ \pop#2\to\tb%
+ \edef\temp{\noexpand\glossword{\the\ta}{\the\tb}}%
+ \expandafter\addtokens\temp\to#3%
+ \fi%
+ \fi%
+ \fi%
+ \zipper#1\and#2\to#3%
+ \fi%
+}
+\long\def\gl#1#2{%
+ \begingroup%
+ \def\x{#1 }\def\y{#2 }\def\z{}%
+ \zipper\x\and\y\to\z%
+ \fixglstrut%
+ \ifvmode\vskip\aboveglskip\fi\z%
+ \endgroup%
+}
+\def\fixglstrut{%
+ \def\glstrut{}%
+ \setbox0=\hbox{\glossword{}{}}%
+ \glstrutheight=\ht0%
+ \glstrutdepth=\dp0%
+ \advance\glstrutdepth by \betweenglskip%
+ \global\edef\glstrut{\vrule height\glstrutheight width0pt depth\glstrutdepth}}
+
+\def\noglstrut{\def\glstrut{}}
+\def\ft#1{\nobreak\par\nobreak\vskip-\betweenglskip\vskip\aboveglftskip #1}
+\def\lb#1{{\unskip\nobreak\hfil\penalty0\hskip2em\mbox{}\nobreak\hfill\mbox{#1}}}
+\long\def\makeglshortcut#1#2{%
+ \makespecial{#1}%
+ \expandafter\gdef\csname gl#1\endcsname<##1>{#2}}
+\makeglshortcut/{\par\ifx#1\empty\else\vskip{#1}\fi}
+\makeglshortcut[{[$_\textrm{\footnotesize#1}$\thinspace}
+\makeglshortcut]{\unskip\thinspace]$_\textrm{\footnotesize#1}$\glspace}
+\long\def\makeglsurround#1#2#3{%
+ \xdef\dvglspecials{\dvglspecials#1#2}%
+ \ta=\expandafter{\csname gl#1\endcsname}%
+ \tb=\expandafter{\csname gl#2\endcsname}%
+ \expandafter\expandafter\expandafter\gdef%
+ \expandafter\expandafter\the\ta%
+ \expandafter<\expandafter##\expandafter1\expandafter>%
+ \expandafter##\expandafter2\the\tb<##3>{#3}}
+
+\makeglsurround ** {%
+ \rlap{\raisebox{1.5em}{\footnotesize\sf#3}}%
+ \fbox{\noglstrut#2\unskip}\glspace}
+\endinput
+%%
+%% End of file `dvgloss.sty'.