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+\everymath={}
+
+\section Glosses
+
+\begininventory
+\macros
+\idx{|\begingl[]|},
+\idx{|\glpreamble[]|},
+\idx{|\gla[]|},
+\idx{|\glb[]|},
+\idx{|\glc[]|},
+\idx{|\glft[]|},
+\idx{|\endgl|}
+\endmc
+\endinventory
+%
+Before I introduce the parameters that control the
+characteristics of gloss displays, here are a few examples done
+with the initial settings of the parameters.
+
+\medskip
+\framedisplay
+\ex<wapm>
+\begingl
+\gla k- wapm -a -s'i -m -wapunin -uk //
+\glb CL V AGR NEG AGR TNS AGR //
+\glb 2 see {\sc 3acc} {} {\sc 2pl} preterit {\sc 3pl} //
+\glft `you (pl) didn't see them'//
+\endgl
+\xe
+\endframedisplay
+\codedisplay~
+\ex
+\begingl
+\gla k- wapm -a -s'i -m -wapunin -uk //
+\glb CL V AGR NEG AGR TNS AGR //
+\glb 2 see {\sc 3acc} {} {\sc 2pl} preterit {\sc 3pl} //
+\glft `you (pl) didn't see them'//
+\endgl
+\xe
+|endcodedisplay
+
+\framedisplay
+\ex<sicher>
+\begingl
+\gla Mary$_i$ ist sicher, dass es den Hans nicht st\"oren w\"urde
+seiner Freundin ihr$_i$ Herz auszusch\"utten.//
+\glb Mary is sure that it the-{\sc acc} Hans not annoy would
+his-{\sc dat} girlfriend-{\sc dat} her-{\sc acc} heart-{\sc acc} {out to
+throw}//
+\glft `Mary is sure that it would not annoy John to reveal her
+heart to his girlfriend.'//
+\endgl
+\xe
+\endframedisplay
+\codedisplay~
+\ex
+\begingl
+\gla Mary$_i$ ist sicher, dass es den Hans nicht st\"oren w\"urde
+seiner Freundin ihr$_i$ Herz auszusch\"utten.//
+\glb Mary is sure that it the-{\sc acc} Hans not annoy would
+his-{\sc dat} girlfriend-{\sc dat} her-{\sc acc}
+heart-{\sc acc} {out to throw}//
+\glft `Mary is sure that it would not annoy John to reveal her
+heart to his girlfriend.'//
+\endgl
+\xe
+|endcodedisplay
+
+
+\framedisplay
+\ex<um>
+\begingl
+\glpreamble Um-\"asudda' h\"am yan i taotao ni si Juan
+ilek-\~na nu guahu mal\"agu' gui
+asudd\"a'-\~na.//
+\gla Um-\"asudda' h\"am yan [ i taotao [ {\it O\/} ni si Juan
+ilek-\~na nu guahu [ mal\"agu' gui [ asudd\"a'-\~na {\it
+t\/} ] ] ] ] @ .//
+\glb agr-meet we with the person Op Comp the Juan say-agr Obl me
+agr.want he {\it WH\/}[obl].meet-agr//
+\glft ``I met the person who Juan told me he wanted to
+meet.''//
+\endgl
+\xe
+\endframedisplay
+\codedisplay~
+\ex
+\begingl
+\glpreamble Um-\"asudda' h\"am yan i taotao ni si Juan
+ ilek-\~na nu guahu mal\"agu' gui asudd\"a'-\~na.//
+\gla Um-\"asudda' h\"am yan [ i taotao [ {\it O\/} ni si Juan
+ ilek-\~na nu guahu [ mal\"agu' gui [ asudd\"a'-\~na {\it
+ t\/} ] ] ] ] @ .//
+\glb agr-meet we with the person Op Comp the Juan say-agr Obl me
+ agr.want he {\it WH\/}[obl].meet-agr//
+\glft ``I met the person who Juan told me he wanted to
+ meet.''//
+\endgl
+\xe
+|endcodedisplay
+
+Glosses (|\begingl| \dots\ |\endgl|) have up to three
+parts. First, an optional preamble (|\glpreamble| \dots\ |//|).
+Second, an interlinear gloss, which is also optional provided there is
+a preamble.\footnote{%
+Contrary to first impressions, there are good reasons to allow the
+interlinear gloss to be omitted in certain situations.} Third, a free
+translation (|\glft| \dots\ |//|), which can be omitted if there is an
+interlinear gloss. They are illustrated below, which repeats (\lastx)
+with a narrower hsize.
+
+\begingroup
+\input pstricks-add
+\ex
+\def\TOP{\pnode(3.4in,1.5ex)}%
+\def\BOT{\pnode(0,-.5ex)}%
+\begingl[glwidth=3.2in]
+\glpreamble \TOP{A1}Um-\"asudda' h\"am yan i taotao ni si Juan
+ilek-\~na nu guahu mal\"agu' gui
+asudd\"a'-\~na.\BOT{B1}//
+\gla \TOP{A2}Um-\"asudda' h\"am yan [ i taotao [ {\it O\/} ni si Juan
+ilek-\~na nu guahu [ mal\"agu' gui [ asudd\"a'-\~na {\it
+t\/} ] ] ] ] @ .//
+\glb agr-meet we with the person Op Comp the Juan say-agr Obl me
+agr.want he {\it WH\/}[obl].meet-agr\BOT{B2}//
+\glft \TOP{A3}``I met the person who Juan told me he wanted to
+meet.''\BOT{B3}//
+\endgl
+\SpecialCoor
+\psbrace[ref=lC](A1|B1)(A1){ preamble}
+\psbrace[ref=lC](A1|B2)(A2){ interlinear gloss}
+\psbrace[ref=lC](A1|B3)(A3){ free translation}
+\xe
+\endgroup
+
+The interlinear gloss consists of a sequence of lines of the form
+$$\hbox{|\gl|{\it levelname\/} \dots\ |//|}$$
+where {\it levelname\/} is |a|, |b|, or |c|.\footnote{%
+This will be extended later to allow the user to define new level
+names.} There must be one and only one |\gla| line, which must come
+first in the interlinear gloss. |\glb| and |\glc| lines can come in
+any order and can be repeated arbitrarily.
+
+The material delineated by |\gl|{\it levelname\/} and |//| is parsed
+as a sequence of space separated items. The parser only looks for
+spaces at the top-level. Consequently, in (\blastx), for example, it
+is not sensitive to the space in items like |the-{\sc acc}| since the
+space is inside a group, therefore not at the top level. Spaces that
+directly precede terminating |//| are disregarded. A line in the
+interlinear gloss can have fewer items on it than the line above it. It
+acts as if it ended with empty |{}| items. But {\it no line in the
+interlinear gloss can have more items than the line above it}. If
+there are ``excess'' items on a line, they will act as if they are on
+the higher line (recursively).
+
+\subsection Parameters
+
+\def\\#1{\noalign{\smallskip}\quad #1\cr}%
+\hrule
+\medskip
+\parinventory
+\\{Horizontal spacing\hidewidth}
+\quad & \idx{|glspace|\user}& \inc dimension& \textdim{1 em}\cr
+\\{Font changes, struts, etc.\hidewidth}
+& \idx{|everygl|}& token list& |{}|\cr
+& \idx{|everyglpreamble|}& token list& |{}|\cr
+& \idx{|everygla|}& token list& |\it|\cr
+& \idx{|everyglb|}& token list& |{}|\cr
+& \idx{|everyglc|}& token list& |{}|\cr
+& \idx{|everyglft|}& token list& |{}|\cr
+\\{Vertical spacing\hidewidth}
+& \idx{|belowglpreambleskip|\user}& (!)dimension& \textdim{1 ex}\cr
+& \idx{|aboveglbskip|\user}& (!)dimension& \textdim{0 pt}\cr
+& \idx{|aboveglcskip|\user}& (!)dimension& \textdim{0 pt}\cr
+& \idx{|aboveglftskip|\user}& (!)dimension& \textdim{1 ex}\cr
+\endparinventory
+\vskip-1ex
+\hrule
+\medskip
+
+Suppose for example that rather than the gloss in (\getref{wapm}) the
+following style is desired.
+
+\framedisplay
+\ex
+\begingl[glspace=2em]
+\gla[everygla=] k- wapm -a -s'i -m -wapunin -uk //
+\glb[everyglb=\sc,aboveglbskip=-.4ex]
+ cl v agr neg agr tns agr //
+\glb 2 see {\sc 3acc} {} {\sc 2pl} preterit {\sc 3pl} //
+\glft[everyglft=\it,aboveglftskip=0pt] `you (pl) didn't see them'//
+\endgl
+\xe
+\endframedisplay
+There are several differences with (\getref{wapm}). The words are
+more widely separated; the font in the |\gla| line is not italic; the
+font in the free translation is italic; the first |\glb| line is set
+in a smaller font and is moved up closer to the |\gla| line; and there
+is no extra vertical skip between the free translation and the last
+line of the interlinear gloss, as there is in (\getref{wapm}).
+
+Here is one way to write the code:
+
+\codedisplay
+\ex
+\begingl[glspace=2em]
+\gla[everygla=] k- wapm -a -s'i -m -wapunin -uk //
+\glb[everyglb=\sc,aboveglbskip=-.4ex]
+ cl v agr neg agr tns agr //
+\glb 2 see {\sc 3acc} {} {\sc 2pl} preterit {\sc 3pl} //
+\glft[everyglft=\it,aboveglftskip=0pt] `you (pl) didn't see them'//
+\endgl
+\xe
+|endcodedisplay
+
+Here is an alternative which produces the same output. It has the
+advantage that all of the parameter settings are gathered in one
+place, making it easier to modify.
+
+\codedisplay
+\ex
+\begingl[glspace=2em,everygla=,everyglb=\sc,
+ aboveglbskip=-.4ex,everyglft=\it,aboveglftskip=0pt]
+\gla k- wapm -a -s'i -m -wapunin -uk //
+\glb cl v agr neg agr tns agr //
+\glc 2 see {\sc 3acc} {} {\sc 2pl} preterit {\sc 3pl} //
+\glft `you (pl) didn't see them'//
+\endgl
+\xe
+|endcodedisplay
+
+If you use multiple instances of the same gloss format, a style should
+be defined
+
+\codedisplay
+\definelingstyle{Potawatami}{glspace=2em,everygla=,everyglb=\sc,
+ aboveglbskip=-.4ex,everyglft=\it,aboveglftskip=0pt}
+|endcodedisplay
+
+Then, typesetting a gloss in that style is done simply.
+
+\codedisplay
+\ex
+\begingl[lingstyle=Potawatami]
+\gla k- wapm -a -s'i -m -wapunin -uk //
+\glb Ccl V Agr Neg Agr Tns Agr //
+\glc 2 see {\sc 3acc} {} {\sc 2pl} preterit {\sc 3pl} //
+\glft `you (pl) didn't see them'//
+\endgl
+\xe
+|endcodedisplay
+
+If you want a sequence of glosses to all be done in this style, you can say:
+
+\def\goop{\quad $\vdots$}
+\codedisplay
+\begingroup
+\lingset{lingstyle=Potawatami}
+|goop
+\endgroup
+|endcodedisplay
+
+\subsection The width of the gloss
+
+In the wrap style (the only gloss style currently implemented),
+the gloss is built in a vbox whose width is determined implicitly
+if the parameter |glwidth| is set to \textdim{0 pt}. The width is
+$h-l-r$, where $h$, $l$, and $r$, are the current values of
+|\hsize|, |\leftskip|, and |\rightskip|, respectively. This
+implicit determination of the width of the gloss is appropriate
+for use with the \ExPex\ macros which typeset examples because
+they adjust the leftskip appropriately inside examples.
+
+If you want to supply an example number or explicit label, it will not
+work to say something like the following if |glwidth| is set to
+\textdim{0 pt}.
+
+\def\goop{\dots\ }
+\codedisplay
+[A]\quad \begingl |goop \endgl
+|endcodedisplay
+%
+The vbox built by the gloss macro will not fit on the same line with
+the [A].
+
+You must say:
+
+\def\temp{\dots }
+\codedisplay
+\ex[exno=A,exnoformat={[X]}] \begingl |temp \endgl
+|endcodedisplay
+The braces around |[A]| are needed to so that the optional argument
+is correctly delineated. For example:
+
+\framedisplay
+\ex[exno={(6), p. 14},exnoformat={[X]}]
+\begingl
+\gla Mary$_i$ ist sicher, dass es den Hans nicht st\"oren w\"urde
+seiner Freundin ihr$_i$ Herz auszusch\"utten.//
+\glb Mary is sure that it the-{\sc acc} Hans not annoy would
+his-{\sc dat} girlfriend-{\sc dat} her-{\sc acc} heart-{\sc acc} {out to
+throw}//
+\endgl
+\xe
+\endframedisplay
+\codedisplay~
+\ex[exno={(6), p. 14},exnoformat={[X]}]
+\begingl
+\gla Mary$_i$ ist sicher, dass es den Hans nicht st\"oren w\"urde
+seiner Freundin ihr$_i$ Herz auszusch\"utten.//
+\glb Mary is sure that it the-{\sc acc} Hans not annoy would
+his-{\sc dat} girlfriend-{\sc dat} her-{\sc acc} heart-{\sc acc} {out to
+throw}//
+\endgl
+\xe
+|endcodedisplay
+
+If the parameter |glwidth| is set to a nonzero dimension, the width of
+the vbox that the gloss is constructed in is the specified dimension.
+
+The following example illustrates the usefulness of the explicit
+width option.
+
+\ex[glwidth=2.6in]<sicher2>
+a.\quad
+\begingl
+\gla Mary$_i$ ist sicher, dass es den Hans nicht st\"oren w\"urde
+seiner Freundin ihr$_i$ Herz auszusch\"utten.//
+\glb Mary is sure that it the-{\sc acc} Hans not annoy would
+his-{\sc dat} girlfriend-{\sc dat} her-{\sc acc} heart-{\sc acc} {out to
+throw}//
+\glft `Mary is sure that it would not annoy John to reveal her
+heart to his girlfriend.'//
+\endgl
+\hfil
+b.\quad
+\begingl
+\gla Mary$_i$ ist sicher, dass seiner Freunden ihr$_i$ Herz
+auszuch\"utten dem Hans nicht schaden w\"urde.//
+\glb Mary is sure that his-{\sc dat} girlfriend-{\sc dat} her-{\sc acc}
+heart-{\sc acc} {out to throw} the-{\sc dat} Hans not damage would//
+\glft `Mary is sure that to reveal her heart to his girlfriend
+would not damage John.'//
+\endgl
+\xe
+
+\codedisplay~
+\ex[glwidth=2.6in]
+a.\quad
+\begingl
+\gla Mary$_i$ ist sicher, dass es den Hans nicht st\"oren w\"urde
+seiner Freundin ihr$_i$ Herz auszusch\"utten.//
+\glb Mary is sure that it the-{\sc acc} Hans not annoy would
+his-{\sc dat} girlfriend-{\sc dat} her-{\sc acc} heart-{\sc acc} {out to
+throw}//
+|exbreak\glft `Mary is sure that it would not annoy John to reveal her
+heart to his girlfriend.'//
+\endgl
+\hfil
+b.\quad
+\begingl
+\gla Mary$_i$ ist sicher, dass seiner Freunden ihr$_i$ Herz
+auszuch\"utten dem Hans nicht schaden w\"urde.//
+\glb Mary is sure that his-{\sc dat} girlfriend-{\sc dat} her-{\sc acc}
+heart-{\sc acc} {out to throw} the-{\sc dat} Hans not damage would//
+\glft `Mary is sure that to reveal her heart to his girlfriend
+would not damage John.'//
+\endgl
+\xe
+|endcodedisplay
+
+
+\subsection Comments and citations
+
+\begininventory
+\macros
+\idx{|\trailingcitation|}, \idx{|\rightcomment|}\endmc
+\parameters*
+|mincitesep|& dimension& \hfil \textdim{1.5 em}\cr
+\endinventory
+
+The following illustrates two different ways to append a comment or
+citation to a gloss.
+
+\framedisplay
+\ex
+\begingl
+\gla \rightcomment{[Potawatami]}k- wapm -a -s'i -m -wapunin -uk //
+\glb \rightcomment{category}Cl V Agr$_1$ Neg Agr$_2$ Tns Agr$_3$//
+\glb 2 see {\sc 3acc} {} {\sc 2pl} preterit {\sc 3pl} //
+\glft `you (pl) didn't see them'\trailingcitation{(Hockett 1948,
+ p. 143)}//
+\endgl
+\xe
+\endframedisplay
+\codedisplay~
+\ex
+\begingl
+\gla \rightcomment{[Potawatami]}k- wapm -a -s'i -m -wapunin -uk //
+\glb \rightcomment{category}Cl V Agr$_1$ Neg Agr$_2$ Tns Agr$_3$//
+\glb 2 see {\sc 3acc} {} {\sc 2pl} preterit {\sc 3pl} //
+\glft `you (pl) didn't see them'\trailingcitation{(Hockett 1948,
+ p. 143)}//
+\endgl
+\xe
+|endcodedisplay
+|\trailingcitation| will put the citation on the same line as the last
+line of the free translation if there is enough room for it, otherwise at the
+end of the following line. The parameter |mincitesep| determines the
+minimum whitespace between the end of the free translation and the
+citation that is tolerated; the default is \textdim{1.5 em}.
+
+|\rightcomment{|\dots|}| must come first in the first item on the
+line. The macro is very primitive. It does not
+consider the width of the citation or the amount of whitespace at
+the right of the gloss. The citation will overlap the gloss if
+there is not room for it at the right. For example, if the gloss
+(\lastx) is attempted with an hsize of \textdim{3.5 in} and
+|glspace=.5em|, the result is (\nextx).
+
+\framedisplay
+\hsize=3.5in
+\ex
+\rightcomment{[Potawatami]}
+\begingl
+\gla k- wapm -a -s'i -m -wapunin -uk //
+\glb \rightcomment{category}Cl V Agr$_1$ Neg Agr$_2$ Tns Agr$_3$//
+\glb 2 see {\sc 3acc} {} {\sc 2pl} preterit {\sc 3pl} //
+\glft `you (pl) didn't see them'\trailingcitation{(Hockett 1948,
+ p. 143)}//
+\endgl
+\xe
+\endframedisplay
+
+In spite of its limitations, |\rightcomment| is occasionally
+quite useful.
+
+\subsection Exceptional {\tt \char"5C gla} items
+
+Items on the |\gla| line are generally associated with items on
+the other lines of the interlinear gloss. There are however a
+few items, called here {\it exceptional items}, which are
+interpreted in an exceptional fashion. There are four exceptional
+items, all consisting of a single character: |+|, |@|, |[|, and
+|]|.
+
+\subsubsection {\tt +}
+
+\sidx{|+|, exceptional gloss item}%
+Sometimes it is desirable to override natural wrapping and
+break up the gloss so that the syntax is emphasized, as in the
+following.
+
+\framedisplay
+\ex
+\begingl
+\gla Mary$_i$ ist sicher, + dass es den Hans nicht st\"oren w\"urde
++ seiner Freundin ihr$_i$ Herz auszusch\"utten.//
+\glb Mary is sure that it the-{\sc acc} Hans not annoy would
+his-{\sc dat} girlfriend-{\sc dat} her-{\sc acc} heart-{\sc acc} {out to
+throw}//
+\glft `Mary is sure that it would not annoy John to reveal her
+heart to his girlfriend.'//
+\endgl
+\xe
+\endframedisplay
+
+\bigskip
+This is accomplished by inserting `|+|' appropriately, as shown in the
+code below. When |+| is encountered, the line is broken and a new
+line started, ignoring any hanging indentation.
+
+\codedisplay
+\ex\begingl
+\gla Mary$_i$ ist sicher, + dass es den Hans nicht st\"oren w\"urde
++ seiner Freundin ihr$_i$ Herz auszusch\"utten.//
+\glb Mary is sure that it the-{\sc acc} Hans not annoy would
+his-{\sc dat} girlfriend-{\sc dat} her-{\sc acc} heart-{\sc acc} {out to
+throw}//
+|exbreak
+\glft `Mary is sure that it would not annoy John to reveal her
+heart to his girlfriend.'//
+\endgl
+\xe
+|endcodedisplay
+
+\subsubsection {\tt @}
+
+\sidx{|@|, exceptional gloss item}%
+Sometimes it is desirable to omit the space between two entries.
+
+\framedisplay
+\ex<wiye>
+\begingl
+\gla wiye kepi e- @ ca//
+\glb two whitemen {\sc 1p:3d}- found//
+\endgl
+\xe
+\endframedisplay
+
+This is accomplished by inserting `|@|' appropriately, as shown
+in the code below.
+
+\codedisplay
+\ex
+\begingl
+\gla wiye kepi e- @ ca//
+\glb two whitemen {\sc 1p:3d}- found//
+\endgl
+\xe
+|endcodedisplay
+In the unlikely event that you need an entry which
+would normally be entered as |@|, enter it as |{{@}}|
+so that it is not interpreted as a directive to omit a space.
+(\getref{@period}) below shows another use for the |@| diacritic.
+
+\exbreak
+\subsubsection {\tt [} and {\tt ]}: Bracketing in glosses
+
+\sidx{|[|, exceptional gloss item}%
+\sidx{|]|, exceptional gloss item}%
+\begininventory
+\macros \idx{|\printlbrack|}, \idx{|\printrbrack|}\endmc
+\parameters
+\idx{|glbrackbracksep|\user}& dimension& \hfil \textdim{.05 em}\cr
+\idx{|glbrackwordsep|\user}& dimension& \hfil \textdim{.1 em}\cr
+\endinventory
+%
+Suppose you want to produce a gloss display like the one below.
+
+\framedisplay
+\pex[everygla=,glhangstyle=normal]<@period>
+\a
+\begingl
+\gla Fa'nu'i yu' ni [ [ {\it O} t{\it in\/}aitai-mu {\it t\/} ] na
+lepblu ] @ .//
+\glb show me Obl Op {\it WH\/}[obj].read-agr {} L book//
+\glft ``Show me the book that you read.''//
+\endgl
+\a \begingl
+\gla Um-\"asudda' h\"am yan [ i taotao [ {\it O\/} ni si Juan
+ilek-\~na nu guahu [ mal\"agu' gui [ asudd\"a'-\~na {\it
+t\/} ] ] ] ] @ .//
+\glb agr-meet we with the person Op Comp the Juan say-agr Obl me
+agr.want he {\it WH\/}[obl].meet-agr//
+\glft ``I met the person who Juan told me he wanted to meet.''//
+\endgl
+\xe
+\endframedisplay
+\noindent The brackets are not glossed; there is a little extra space
+between brackets; and there is a little extra space between words and
+brackets.
+
+(\lastx) is produced by:
+
+\codedisplay
+\pex[everygla=]
+\a \begingl
+\gla Fa'nu'i yu' ni [ [ {\it O} t{\it in\/}aitai-mu {\it t\/} ] na
+lepblu ] @ .//
+\glb show me Obl Op {\it WH\/}[obj].read-agr {} L book//
+\glft ``Show me the book that you read.''//
+\endgl
+\a \begingl
+\gla Um-\"asudda' h\"am yan [ i taotao [ {\it O\/} ni si Juan
+ilek-\~na nu guahu [ mal\"agu' gui [ asudd\"a'-\~na {\it
+t\/} ] ] ] ] @ .//
+\glb agr-meet we with the person Op Comp the Juan say-agr Obl me
+agr.want he {\it WH\/}[obl].meet-agr//
+\glft ``I met the person who Juan told me he wanted to meet.''//
+\endgl
+\xe
+|endcodedisplay
+
+\noindent |@| is used in the gla-line to eliminate an unwanted
+space before the period.
+
+\ExPex\ uses the macros |\printrbrack| and
+|\printlbrack| to typeset the brackets. The definitions of
+these macros could be changed to cause [ and ] in glosses to
+insert something other than simple brackets.
+
+
+\everymath={}
+\lingset{glwidth=2.4in,everygl=,glhangstyle=none}
+\psset{framesep=1ex}
+
+
+\def\minigloss#1#2{\outlinebox{%
+ \vtop{\halign{\ministrut ##\hfil\cr #1\cr #2\cr}}}\hskip1pt}%
+\let\ministrut=\relax
+\def\miniglossbare#1#2{\vtop{\halign{##\hfil\cr
+ #1\cr #2\cr}}}
+\psset{linewidth=.4pt}
+\def\outlinebox{\psframebox[framesep=0,boxsep=false,linewidth=.4pt]}
+
+\subsection Line spacing in wrapped glosses
+
+\subsubsection Changes from version 4.0
+
+\begininventory
+\parameters*
+\idx{|abovemoreglskip|}\user& (!)skip& \hfil \textdim{1 ex}& now obsolete\cr
+\endinventory
+
+\noindent
+Executing the macro |\gloldstyle| will return \ExPex\ to a state in
+which glosses written using version 4.0 should display as they
+did using version 4.0. The parameter |abovemoreglskip| which
+was used to control wrap spacing in glosses is still recognized,
+but it is now considered obsolete and should be avoided in future
+work.
+
+\subsubsection Simple control
+
+\begininventory
+\parameters*
+\idx{|autoglskip|}& boolean& \hfil true\cr
+\idx{|extraglskip|}\user& \inc skip& \hfil \textdim{0 pt}\cr
+\endinventory
+
+\noindent In deciding on a gloss format, the main decision is
+the value of what I call the {\it glskip}, as illustrated
+below.
+
+\ex[textoffset=1in,dima=.5em]<Chung1>
+\begingl[extraglskip=1.2ex]
+\gla Ti ma'a'\~nao hao kumuentusi\pnode(\lingdima,0){B2} \pnode(-\lingdima,0){A1}ni h\'ayiyi ha'.//
+\glb \pnode(-.5em,0){A2}not agr.afraid you
+Infin.speak.to\pnode(\lingdima,0){B1} not anyone Emp//
+\glft ``You're not afraid to talk to anyone.''//
+\endgl
+\pcline{|*-|*}(A2)(A1)
+\pcline{<->}(A2)(A1)
+\nbput[ref=r]{glskip\ }
+\pcline{|*-|*}(B1|B2)(B1)
+\pcline{<->}(B1|B2)(B1)
+\naput[ref=l]{\ baselineskip}
+\xe
+Generally, the desired glskip is equal to the baselineskip or
+equal to the baselineskip plus some specified increment. When I
+have occasion to typeset glosses, I generally make the glskip
+equal to the baselineskip plus \textdim{.6 ex}. The extra space,
+although small, makes it much easier to parse the gloss visually.
+The extra glskip in (\lastx) is \textdim{1.2 ex}.
+
+ExPex initializes the glossing algorithm so that it produces
+glosses like~(\nextx). The glskip is equal to the baselineskip.
+This is done in {\it expex.tex\/} by setting |autoglskip| to true
+and |extraglskip| to \textdim{0 pt}. In adjusting the glskip,
+struts are used. It is assumed that the strut height plus the
+strut depth is equal to the baselineskip. Most users will never
+reset |autoglskip|. The next section discusses vertical spacing
+when |autoglskip| is set to false. (|glwidth| is set to
+\textdim{2.4 in} in all of the examples in this section in the
+interests of ``economy of space''.)
+
+\setss .52 .48
+
+\beginss
+\ex
+\begingl
+\gla Ti ma'a'\~nao hao kumuentusi
+ ni h\'ayiyi ha'.//
+\glb not agr.afraid you
+ Infin.speak.to not anyone Emp//
+\endgl
+\xe|midss
+\ex<Ti>
+\begingl
+\gla Ti ma'a'\~nao hao kumuentusi ni h\'ayiyi ha'.//
+\glb not agr.afraid you Infin.speak.to not anyone Emp//
+\endgl
+\xe
+\endss
+
+It is easy to produce glosses like (\nextx) by adjusting the
+parameter |extraglskip|. In (\nextx), the glskip is \textdim{1.2
+ex} larger than the baselineskip.
+
+\beginss
+\ex
+\begingl[extraglskip=1.2ex]
+\gla Ti ma'a'\~nao hao kumuentusi
+ ni h\'ayiyi ha'.//
+\glb not agr.afraid you
+ Infin.speak.to not anyone Emp//
+\endgl
+\xe|midss
+\ex
+\begingl[extraglskip=1.2ex]
+\gla Ti ma'a'\~nao hao kumuentusi ni h\'ayiyi ha'.//
+\glb not agr.afraid you Infin.speak.to not anyone Emp//
+\endgl
+\xe
+\endss
+
+If |extraglskip| is expressed in font dependent units, the format
+for glosses will not need adjustment for glosses in footnotes
+which are set in smaller type with tighter baselines. This
+assumes that the footnote environment adjusts the strut size
+appropriately, as it should, with the height plus depth of struts
+made equal to the baselineskip. The text in (\nextx) is set in a
+\textdim{12 pt} font with \textdim{14 pt} baselines. Struts are
+\textdim{10 pt} high and 4pt deep. |\fnenvironment| switches to a
+\textdim{10 pt} font with \textdim{12 pt} baselines, with struts
+that are 8.5pt high and 3.5pt deep.
+
+\lingset{autoglskip=true}
+
+\beginss
+\ex
+\begingl[extraglskip=1ex]
+\gla Ti ma'a'\~nao hao kumuentusi
+ ni h\'ayiyi ha'.//
+\glb not agr.afraid you
+ Infin.speak.to not anyone Emp//
+\endgl
+\xe|midss
+\ex
+\begingl[extraglskip=1ex]
+\gla Ti ma'a'\~nao hao kumuentusi ni h\'ayiyi ha'.//
+\glb not agr.afraid you Infin.speak.to not anyone Emp//
+\endgl
+\xe
+\endss
+\vskip-2ex
+
+\beginss
+\fnenvironment
+\ex
+\begingl[extraglskip=1ex]
+\gla Ti ma'a'\~nao hao kumuentusi
+ ni h\'ayiyi ha'.//
+\glb not agr.afraid you
+ Infin.speak.to not anyone Emp//
+\endgl
+\xe|midss
+\lingset{autoglskip=true,extraglskip=1ex}
+\baselineskip=12pt
+\setbox\strutbox=\hbox{\vrule height 8.5pt depth 3.5pt width 0pt}
+\footnotesize
+\ex
+\begingl[extraglskip=1ex]
+\gla Ti ma'a'\~nao hao kumuentusi ni h\'ayiyi ha'.//
+\glb not agr.afraid you Infin.speak.to not anyone Emp//
+\endgl
+\xe
+\endss
+
+Most users will never need to know more about glossing than that
+provided in this section. But some, at some point, might face
+some unusual situation requiring more control over the line
+spacing than the control which |extraglskip| allows. The
+next section is for such users only.
+
+\subsubsection The techonology behind vertical spacing in glosses
+
+\begininventory
+\parameters
+\idx{|gllineskip|}\user & \inc skip& \hfil\textdim{1 ex}\cr
+\idx{|glstruts|}& boolean& \hfil true\cr
+\endinventory
+
+
+
+\noindent Wrapping is carried out by first forming a sequence of
+boxes, as in (\nextx) and then feeding this sequence to Tex's
+apparatus for breaking paragraphs into lines and stacking
+sequences of lines into pages. The baseline of these boxes is
+the baseline of the top line. As far as Tex is concerned, the
+sequence of boxes is a sequence of words; a paragraph. We use
+(\getref{Ti}) as an illustration. If struts are inserted before
+every word of every box, we get (\nextx b), otherwise (\nextx a).
+Generally, struts are inserted because this gives much better
+control of the line spacing.
+
+\pex[nopreamble,interpartskip=3ex]<seq>
+\let\\=\minigloss
+\spaceskip=\lingglspace
+\a \\{Ti}{not}, \\{ma'a'\~nao}{agr.afraid}, \\{hao}{you},
+\\{kumuentusi}{Infin.speak.to}, \\{ni}{not}, \\{h\'ayiyi}{anyone},
+\\{ha'}{Emp}
+\let\ministrut=\strut
+\a \\{Ti}{not}, \\{ma'a'\~nao}{agr.afraid}, \\{hao}{you},
+\\{kumuentusi}{Infin.speak.to}, \\{ni}{not}, \\{h\'ayiyi}{anyone},
+\\{ha'}{Emp}
+\xe
+The boxes will be called {\it glwords}.
+
+Suppose we feed (\lastx b), for example, to Tex's page formation
+machinery. The outcome, will depend on many Tex parameters. Of
+particular interest for the line spacing are |\baselineskip| and
+|\lineskip|. |\lineskiplimit| is set to \textdim{0 pt} in
+glosses. There are nested environments; one governing stacking
+words into glwords, the other governing stacking lines of
+glwords. Call these the interior and exterior environments. If
+we consider (\nextx), for example, note that the dimension of
+most interest, the vertical spacing between the {\it b\/} and
+{\it c\/} lines is not a distance between baselines in either the
+interior or exterior environments. When glwords are built, the
+baseline spacing is between the {\it a\/} and {\it b\/} lines
+(the {c-d\/} spacing is the same). When the glwords are formed
+into a paragraph, the baseline spacing is between the {\it a\/}
+and {\it c\/} lines. Line {\it a\/} is the baseline of the top
+row of glwords and line {\it c\/} is the baseline of bottom row.
+
+\ex[linestyle=dotted,linewidth=1pt]
+\begingl[extraglskip=1ex]
+\gla \pnode{A1}Ti ma'a'\~nao hao kumuentusi\pnode{B1} ni h\'ayiyi
+ha'.\pnode{B3}//
+\glb not agr.afraid you Infin.speak.to\pnode(1em,0){B2} not anyone
+Emp\pnode{B4}//
+\endgl
+\pcline(A1|B1)(B2|B1)
+\pcline(A1|B2)(B2|B2)
+\pcline(A1|B3)(B2|B3)
+\pcline(A1|B4)(B2|B4)
+\rput(B2|B1){\pnode(1em,0){C1}}
+\rput(C1){\tenit a}
+\rput(C1|B2){\tenit b}
+\rput(C1|B3){\tenit c}
+\rput(C1|B4){\tenit d}
+\xe
+A desired value for the {\it b-c\/} line spacing must be achieved
+indirectly.
+
+ExPex leaves both the baselineskip in the exterior environment
+the same as it is inside the glwords. This means that the
+baselineskip will have no effect when the paragraph (\lastx a) or
+(\lastx b) is typeset because the glwords are deeper than the
+baselineskip. \ExPex\ adjusts the |\lineskip| in the exterior
+environment to achieve the desired {\it b-c\/} line spacing; that
+is, to achieve the desired glskip.
+
+(\nextx) illustrates the relation between |\lineskip| and the
+glskip, assuming that strut insertion has taken place.
+
+\ex[textoffset=.8in,aboveexskip=!1ex]
+\def\outlinebox{\psframebox[framesep=0,boxsep=false,linewidth=.15pt]}
+\let\\=\minigloss
+\let\ministrut=\strut
+\psscalebox{2}{\vtop{\leftskip=0pt \raggedright \hsize=2.4in
+\lineskip=2ex
+\leavevmode
+\\{\pnode{Y1}Ti}{\pnode{Y3}not}\
+\\{ma'a'\~nao}{agr.\pnode(0,-\dp\strutbox){A1}afraid}\
+\\{hao}{you}\
+\\{kumuentusi}{Infin.speak.to}\
+\\{\pnode(-.2em,0){Y2}ni}{not}\
+\\{h\'ayiyi\pnode(0,\ht\strutbox){A2}}{anyone}\
+\\{ha'}{Emp}%
+}}
+\pcline[linewidth=1pt]{<->}(A1)(A1|A2)
+\naput[ref=l]{lineskip}
+\pcline[linewidth=1pt]{<->}(Y2|Y3)(Y2|Y2)
+\pcline[linewidth=1pt]{|*-|*}(Y2|Y3)(Y2|Y2)
+\nbput[ref=r]{glskip}
+\xe
+
+If autoglskip is turned on, |\lineskip| is adjusted so that the
+glskip is equal to the baselineskip plus the value of
+|extraglskip|. If $|\baselineskip|=b$, $|\dp\strutbox|=d$,
+$|\ht\strutbox|=h$, and $|extraglskip|=e$, then |\lineskip|
+is set to $b+e-d-h$.
+
+If |autoglskip| is turned off, struts are inserted only if
+|glstruts| is turned on; |\lineskip| is made equal to
+|gllineskip|. With |glstruts| turned off, the glskip will depend
+on |gllineskip|, the depth of the deepest character on the bottom
+row of the top line of glwords, and the height of the tallest
+character on the top row of the bottom line of glwords.
+
+%\def\showchar#1{\setbox0=\hbox{#1}\writeln{#1: \the\ht0, \the\dp0}}
+%\showchar{g}
+%\showchar{p}
+%\showchar{y}
+%\showchar{\it h}
+%\showchar{\it \'a}
+%\showchar{\it '}
+%\showchar{\it i}
+
+The above will be clearer if you do the following exercise:
+Calculate the glskip in the 3~examples below. The font is
+\textdim{12 pt} with struts that are \textdim{10 pt} high and
+\textdim{4 pt} deep. The baselineskip is \textdim{18 pt}. Roman
+g, y, and p are all \textdim{2.60 pt} deep; italic h, italic ',
+and italic i are all \textdim{7.96 pt} tall; and italic \'a is
+\textdim{7.93 pt} tall.
+
+\beginss
+\ex
+\begingl[autoglskip=true,
+ extraglskip=4pt]
+\gla Ti ma'a'\~nao hao kumuentusi
+ ni h\'ayiyi ha'.//
+\glb not agr.afraid you
+ Infin.speak.to not anyone Emp//
+\endgl
+\xe|midss
+\ex
+\baselineskip=18pt
+\begingl[autoglskip=true,extraglskip=4pt]
+\gla Ti ma'a'\~nao hao kumuentusi ni h\'ayiyi ha'.//
+\glb not agr.afraid you Infin.speak.to not anyone Emp//
+\endgl
+\xe
+\endss
+
+\beginss
+\ex
+\begingl[autoglskip=false,
+ glstruts=true,gllineskip=8pt]
+\gla Ti ma'a'\~nao hao kumuentusi
+ ni h\'ayiyi ha'.//
+\glb not agr.afraid you
+ Infin.speak.to not anyone Emp//
+\endgl
+\xe|midss
+\ex
+\baselineskip=18pt
+\begingl[autoglskip=false,glstruts=true,gllineskip=8pt]
+\gla Ti ma'a'\~nao hao kumuentusi ni h\'ayiyi ha'.//
+\glb not agr.afraid you Infin.speak.to not anyone Emp//
+\endgl
+\xe
+\endss
+
+\def\goop{$\,^{\the\fnno}$}
+\beginss
+\ex
+\begingl[autoglskip=false,
+ glstruts=false,gllineskip=8pt]
+\gla Ti ma'a'\~nao hao kumuentusi
+ ni h\'ayiyi ha'.//
+\glb not agr.afraid you
+ Infin.speak.to not anyone Emp//
+\endgl
+\xe|putfnno|midss
+\ex
+\baselineskip=18pt
+\begingl[autoglskip=false,glstruts=false,gllineskip=8pt]
+\gla Ti ma'a'\~nao hao kumuentusi ni h\'ayiyi ha'.//
+\glb not agr.afraid you Infin.speak.to not anyone Emp//
+\endgl
+\xe
+\endss
+\footnotebody{\hbox{\rput[tr]{180}{Answers: \textdim{22 pt}, \textdim{22 pt},
+and \textdim{18.56 pt}}}
+}
+
+\subsubsection How to avoid overfull boxes in glosses
+
+\begininventory
+\parameters
+\idx{|glspace|}& skip& \textdim{.5 em} plus \textdim{.4 em} minus
+ \textdim{.15 em}\hfil\cr
+\idx{|glrightskip|}& skip& 0\dimskip pt plus .1|\hsize|\hfil \cr
+\endinventory
+%
+Hopefully, you will never encounter the problem which the
+parameterization in this section is designed to solve, the
+``overfull line'' error message. The default setting puts
+\textdim{.5 em} of glue between the glwords on a line, plus
+\textdim{.4 em} of stretchability and \textdim{.15 em} of
+shrinkage. The interglword spacing on a line can therefore vary
+from \textdim{.35 em} up to \textdim{.9 em} to accommodate the
+needs of the Tex linebreaking algorithm.\footnote{%
+This is a much larger range than is typical in running text, but
+it is appropriate in glosses, which typically have many large
+whitespace gaps on one line or the other.}
+Further, the default settings allow up to 10\% of the hsize of
+whitespace to appear at the end of the line of glwords. The
+possible extra space at the right edge and
+stretchability/shrinkability of the space between glwords means
+that line breaking in glosses will rarely encounter problems with
+overfull lines.
+
+In unusual cases, there may be a problem. Your publisher (or
+you) may be particularly fussy and demand a particular spacing
+and/or better right alignment in glosses. Or you might want to make a
+unusually narrow gloss, which increases the chances that there
+might not be enough flexibility in the spacing.
+
+If you do run into the problem of overfull lines in a gloss, two
+parameters allow for a great deal of flexibility; |glspace| and
+|glrightskip|. |glspace| is an incremental parameter, so you could say,
+for example, |\lingset{glspace=!0pt plus .2em}|, increasing the
+stretchability of the interglword space by \textdim{.2 em}. Or,
+you might want to increase the stretchability of the rightskip
+in a particular troublesome gloss to allow more whitespace at the
+right edge. An acceptable solution will depend on your
+particular typesetting aesthetics. Solving line breaking problems
+is often troublesome and requires experimentation.
+
+\medskip
+The Chamorro examples in (\getref{@period}) and (\getref{Chung1})
+are adapted from Sandy Chung's {\it The Design of Agreement}. See
+(59a) on page 237, (82a) on page 247, and (59b) on page 97. The
+Potawatami example (\getref{wapm}) is from Halle and Marantz's
+``Distributed Morphology'' article. The German examples in
+(\getref{sicher2}) are from an article by Idan Landau. The Kiowa
+example (\getref{wiye}) was contributed by Daniel Harbour.
+