expex (5aug13)

git-svn-id: svn://tug.org/texlive/trunk@31356 c570f23f-e606-0410-a88d-b1316a301751

34 files changed, 6806 insertions, 9 deletions

diff --git a/Master/texmf-dist/doc/generic/expex/source/0-index.tex b/Master/texmf-dist/doc/generic/expex/source/0-index.tex
new file mode 100644
index 00000000000..f645c31c6fe
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/0-index.tex
@@ -0,0 +1,132 @@
+|*|, parameter\enspace 30
+|+|, exceptional gloss item\enspace 39
+|@|, exceptional gloss item\enspace 40
+|[|, exceptional gloss item\enspace 40
+|]|, exceptional gloss item\enspace 40
+|~|, tilde modification\enspace 11
+|\a[]|\enspace 13
+|aboveexskip|\user\enspace 8
+|aboveglbskip|\user\enspace 35
+|aboveglcskip|\user\enspace 35
+|aboveglftskip|\user\enspace 35
+|abovemoreglskip|\enspace 41
+|\actualexno|\enspace 24
+|\anextx|\enspace 52
+|appendtopexarg|\enspace 24
+|autoglskip|\enspace 41
+|avoidnumlabelclash|\enspace 24
+|\a|\enspace 13
+|\bblastx|\enspace 52
+|\begingl[]|\enspace 32
+|\beginglpanel[]|\enspace 48
+|belowexskip|\user\enspace 8
+|belowglpreambleskip|\user\enspace 35
+|belowgpreambleskip|\user\enspace 13
+|\blastx|\enspace 52
+|\crnb|\enspace 64
+|crskip|\enspace 63
+|\crs|\enspace 63
+|\defineglwlevels|\enspace 46
+|\definelabeltype|\enspace 21
+|\definelingstyle|\enspace 28
+|\deftagex|\enspace 53
+|\deftaglabel|, in tables\enspace 62
+|\deftaglabel|\enspace 53
+|\deftagpage|\enspace 53
+|\deftag|\enspace 53
+|dima|\user\enspace 63
+|dimb|\user\enspace 63
+|dimc|\user\enspace 63
+|\endgl|\enspace 32
+|\endpanel|\enspace 48
+|everyex|\user\enspace 28
+|Everyex|\user\enspace 28
+|everygla|\enspace 35
+|everyglb|\enspace 35
+|everyglc|\enspace 35
+|everyglft|\enspace 35
+|everyglpreamble|\enspace 35
+|everygluf|\enspace 51
+|everygl|\enspace 35
+|everylabel|\enspace 18
+|everypanel|\user\enspace 48
+|exbreakfil|\enspace 69
+|exbreakpenalty|\enspace 69
+|\exbreak|\enspace 69
+|\excnt|\enspace 8
+|\exdisplay[]|\enspace 64
+|exnoformat|\enspace 11
+|\exnoprint|\enspace 64
+|exno|\enspace 11
+|exno|, setting by reference\enspace 56
+|exskip|\enspace 8
+|extraglskip|\enspace 41
+|\ex|\enspace 8
+|fullrefformat|\enspace 57
+|\gathertags|\enspace 55
+|\getfullref|\enspace 53
+|\getref|\enspace 53
+|\gla[]|\enspace 32
+|\glb[]|\enspace 32
+|glbrackbracksep|\user\enspace 40
+|glbrackwordsep|\user\enspace 40
+|\glc[]|\enspace 32
+|\glft[]|\enspace 32
+|glftpos|\enspace 47
+|glhangstyle|\enspace 47
+|gllineskip|\enspace 43
+|\glpreamble[]|\enspace 32
+|glrightskip|\enspace 45
+|glspace|\enspace 45
+|glspace|\user\enspace 35
+|glstruts|\enspace 43
+|glufcloseup|\enspace 51
+|\gluf|\enspace 51
+|\hwit|\enspace 59
+|interpartskip|\user\enspace 13
+|\judge|\enspace 30
+|\keepexcntlocal|\enspace 27
+|labelalign|\enspace 19
+|labelanchor|\enspace 17
+|labelformat|\enspace 18
+|labelgen|\enspace 21
+|labellist|\enspace 21
+|labeloffset|\user\enspace 13
+|\labels[]|\enspace 61
+|labeltype|\enspace 13
+|labelwidth|\user\enspace 13
+|\label|, use of the LaTex macro\enspace 59
+|\lastlabel|\enspace 55
+|\lastx|\enspace 52
+|\lingset|\enspace 7
+|\Lingset|\enspace 67
+|\ljudge|\enspace 30
+|\nextx|\enspace 52
+|\nl|\enspace 61
+|\noexno|\enspace 64
+|nopreamble|\enspace 14
+|numoffset|\user\enspace 8
+|\pexcnt|\enspace 13, 21
+|pexcnt|, parameter\enspace 21
+|\pex~[]|\enspace 13
+|preambleanchor|\enspace 17
+|preambleoffset|\user\enspace 13
+|\printlbrack|\enspace 40
+|\printrbrack|\enspace 40
+|\refproofing|\enspace 54
+|\ref|, use of the LaTex macro\enspace 59
+|\rightcomment|\enspace 38
+|sampleexno|\enspace 23
+|samplelabel|\enspace 13
+|splitpartspenalty|\enspace 69
+|ssratio|\enspace 47
+|ssrightskip|\enspace 47
+|sssep|\enspace 47
+|\tagfilesuffix|\enspace 55
+|tag|\enspace 53
+|textanchor|\enspace 17
+|textoffset|\user\enspace 8
+|\tl|\enspace 61
+|\trailingcitation|\enspace 38
+|\tspace|\enspace 63
+|\xe|\enspace 8
diff --git a/Master/texmf-dist/doc/generic/expex/source/0-tags.tex b/Master/texmf-dist/doc/generic/expex/source/0-tags.tex
new file mode 100644
index 00000000000..3706a9b1a01
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/0-tags.tex
@@ -0,0 +1,53 @@
+\relax 
+\@fd@f {pg} {{3}} 
+\@fd@f {pg.A} {{{\char 98}}{{3\char 98}}}
+\@fd@f {Pre} {{97}} 
+\@fd@f {advanced} {{6}} 
+\@fd@f {anchors} {{6.2}} 
+\@fd@f {everylabel1} {{105}} 
+\@fd@f labelformatpage {{18}}
+\@fd@f {sometimes} {{108}} 
+\@fd@f {triplea1} {{110}} 
+\@fd@f {triplea3} {{112}} 
+\@fd@f {tripleb1} {{113}} 
+\@fd@f {tripleb3} {{115}} 
+\@fd@f {nonum} {{\unhcopy \exnobox }} 
+\@fd@f {IJAL1} {{5}} 
+\@fd@f {fns} {{6.8}} 
+\@fd@f {starsec} {{8}} 
+\@fd@f {wapm} {{126}} 
+\@fd@f {sicher} {{127}} 
+\@fd@f {um} {{128}} 
+\@fd@f {sicher2} {{131}} 
+\@fd@f {wiye} {{135}} 
+\@fd@f {@period} {{136}} 
+\@fd@f {Chung1} {{137}} 
+\@fd@f {Ti} {{138}} 
+\@fd@f {seq} {{142}} 
+\@fd@f {panelex} {{150}} 
+\@fd@f {unnamedref} {{11.1}} 
+\@fd@f {named-reference} {{11.2}} 
+\@fd@f {FP} {{the first part of example {\advance \excnt by -1 153}}} 
+\@fd@f {snoopy} {{153}}
+\@fd@f {snoopy.dog} {{{\char 98}}{{153\char 98}}}
+\@fd@f {snoopy.a} {{{\char 99}}{{153\char 99}}}
+\@fd@f {snoopy} {{{\advance \excnt by -1 155}{\it \char 98}}} 
+\@fd@f {dog} {{156}} 
+\@fd@f {dog.G} {{{2}}{{156.2}}}
+\@fd@f {K} {{157}} 
+\@fd@f {K.A} {{{2}}{{157-2}}}
+\@fd@f {1st} {{Someone loves everyone.}} 
+\@fd@f {2nd} {{Everyone loves someone.}} 
+\@fd@f {A} {{158}} 
+\@fd@f {A.X} {{{\char 98}}{{158\char 98}}}
+\@fd@f {A.Z} {{{\char 100}}{{158\char 100}}}
+\@fd@f {explicit-sec} {{11.8}} 
+\@fd@f {labelsec} {{11.9}} 
+\@fd@f {A} {{161}}
+\@fd@f {A.B} {{{\char 97}}{{161\char 97}}}
+\@fd@f {A.C} {{{\char 98}}{{161\char 98}}}
+\@fd@f {A.D} {{{\char 99}}{{161\char 99}}}
+\@fd@f {Washo} {{166}} 
+\@fd@f {Washo.A} {{{\char 99}}{{166\char 99}}}
+\@fd@f {Washo.B} {{{\char 100}}{{166\char 100}}}
+\@fd@f exbreakpage {{69}}
diff --git a/Master/texmf-dist/doc/generic/expex/source/0.idx b/Master/texmf-dist/doc/generic/expex/source/0.idx
new file mode 100644
index 00000000000..fd5bb43e283
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/0.idx
@@ -0,0 +1,143 @@
+\indexentry{|\lingset|}{7}
+\indexentry{|\lingset|}{7}
+\indexentry{|\ex|}{8}
+\indexentry{|\xe|}{8}
+\indexentry{|\excnt|}{8}
+\indexentry{|numoffset|\user}{8}
+\indexentry{|textoffset|\user}{8}
+\indexentry{|aboveexskip|\user}{8}
+\indexentry{|belowexskip|\user}{8}
+\indexentry{|exskip|}{8}
+\indexentry{|~|, tilde modification}{11}
+\indexentry{|exno|}{11}
+\indexentry{|exnoformat|}{11}
+\indexentry{|\pexcnt|}{13}
+\indexentry{|\pex~[]|}{13}
+\indexentry{|\a[]|}{13}
+\indexentry{|labeltype|}{13}
+\indexentry{|labeloffset|\user}{13}
+\indexentry{|labelwidth|\user}{13}
+\indexentry{|preambleoffset|\user}{13}
+\indexentry{|interpartskip|\user}{13}
+\indexentry{|belowgpreambleskip|\user}{13}
+\indexentry{|samplelabel|}{13}
+\indexentry{|\a|}{13}
+\indexentry{|nopreamble|}{14}
+\indexentry{|labelanchor|}{17}
+\indexentry{|preambleanchor|}{17}
+\indexentry{|textanchor|}{17}
+\indexentry{|everylabel|}{18}
+\indexentry{|labelformat|}{18}
+\indexentry{|labelalign|}{19}
+\indexentry{|labelalign|}{19}
+\indexentry{|\definelabeltype|}{21}
+\indexentry{|\pexcnt|}{21}
+\indexentry{|labelgen|}{21}
+\indexentry{|pexcnt|, parameter}{21}
+\indexentry{|labellist|}{21}
+\indexentry{|sampleexno|}{23}
+\indexentry{|\actualexno|}{24}
+\indexentry{|avoidnumlabelclash|}{24}
+\indexentry{|appendtopexarg|}{24}
+\indexentry{|\keepexcntlocal|}{27}
+\indexentry{|\definelingstyle|}{28}
+\indexentry{|everyex|\user}{28}
+\indexentry{|Everyex|\user}{28}
+\indexentry{|\judge|}{30}
+\indexentry{|\ljudge|}{30}
+\indexentry{|*|, parameter}{30}
+\indexentry{|\begingl[]|}{32}
+\indexentry{|\glpreamble[]|}{32}
+\indexentry{|\gla[]|}{32}
+\indexentry{|\glb[]|}{32}
+\indexentry{|\glc[]|}{32}
+\indexentry{|\glft[]|}{32}
+\indexentry{|\endgl|}{32}
+\indexentry{|glspace|\user}{35}
+\indexentry{|everygl|}{35}
+\indexentry{|everyglpreamble|}{35}
+\indexentry{|everygla|}{35}
+\indexentry{|everyglb|}{35}
+\indexentry{|everyglc|}{35}
+\indexentry{|everyglft|}{35}
+\indexentry{|belowglpreambleskip|\user}{35}
+\indexentry{|aboveglbskip|\user}{35}
+\indexentry{|aboveglcskip|\user}{35}
+\indexentry{|aboveglftskip|\user}{35}
+\indexentry{|\trailingcitation|}{38}
+\indexentry{|\rightcomment|}{38}
+\indexentry{|+|, exceptional gloss item}{39}
+\indexentry{|@|, exceptional gloss item}{40}
+\indexentry{|[|, exceptional gloss item}{40}
+\indexentry{|]|, exceptional gloss item}{40}
+\indexentry{|\printlbrack|}{40}
+\indexentry{|\printrbrack|}{40}
+\indexentry{|glbrackbracksep|\user}{40}
+\indexentry{|glbrackwordsep|\user}{40}
+\indexentry{|abovemoreglskip|}{41}
+\indexentry{|autoglskip|}{41}
+\indexentry{|extraglskip|}{41}
+\indexentry{|gllineskip|}{43}
+\indexentry{|glstruts|}{43}
+\indexentry{|glspace|}{45}
+\indexentry{|glrightskip|}{45}
+\indexentry{|\defineglwlevels|}{46}
+\indexentry{|glftpos|}{47}
+\indexentry{|sssep|}{47}
+\indexentry{|ssratio|}{47}
+\indexentry{|ssrightskip|}{47}
+\indexentry{|glhangstyle|}{47}
+\indexentry{|\beginglpanel[]|}{48}
+\indexentry{|\endpanel|}{48}
+\indexentry{|everypanel|\user}{48}
+\indexentry{|\gluf|}{51}
+\indexentry{|glufcloseup|}{51}
+\indexentry{|everygluf|}{51}
+\indexentry{|\lastx|}{52}
+\indexentry{|\nextx|}{52}
+\indexentry{|\blastx|}{52}
+\indexentry{|\anextx|}{52}
+\indexentry{|\bblastx|}{52}
+\indexentry{|\deftag|}{53}
+\indexentry{|\deftagex|}{53}
+\indexentry{|\deftaglabel|}{53}
+\indexentry{|\deftagpage|}{53}
+\indexentry{|\getref|}{53}
+\indexentry{|\getfullref|}{53}
+\indexentry{|tag|}{53}
+\indexentry{|\deftag|}{53}
+\indexentry{|\getref|}{53}
+\indexentry{|\deftagex|}{53}
+\indexentry{|\deftagpage|}{53}
+\indexentry{|\deftaglabel|}{53}
+\indexentry{|\refproofing|}{54}
+\indexentry{|\gathertags|}{55}
+\indexentry{|\tagfilesuffix|}{55}
+\indexentry{|\gathertags|}{55}
+\indexentry{|\tagfilesuffix|}{55}
+\indexentry{|\lastlabel|}{55}
+\indexentry{|exno|, setting by reference}{56}
+\indexentry{|fullrefformat|}{57}
+\indexentry{|\label|, use of the LaTex macro}{59}
+\indexentry{|\ref|, use of the LaTex macro}{59}
+\indexentry{|\hwit|}{59}
+\indexentry{|\labels[]|}{61}
+\indexentry{|\tl|}{61}
+\indexentry{|\nl|}{61}
+\indexentry{|\deftaglabel|, in tables}{62}
+\indexentry{|\tspace|}{63}
+\indexentry{|\crs|}{63}
+\indexentry{|dima|\user}{63}
+\indexentry{|dimb|\user}{63}
+\indexentry{|dimc|\user}{63}
+\indexentry{|crskip|}{63}
+\indexentry{|\exdisplay[]|}{64}
+\indexentry{|\noexno|}{64}
+\indexentry{|\exnoprint|}{64}
+\indexentry{|\crnb|}{64}
+\indexentry{|\noexno|}{64}
+\indexentry{|\Lingset|}{67}
+\indexentry{|\exbreak|}{69}
+\indexentry{|exbreakfil|}{69}
+\indexentry{|exbreakpenalty|}{69}
+\indexentry{|splitpartspenalty|}{69}
diff --git a/Master/texmf-dist/doc/generic/expex/source/0.tex b/Master/texmf-dist/doc/generic/expex/source/0.tex
new file mode 100644
index 00000000000..0e00d8f5d95
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/0.tex
@@ -0,0 +1,40 @@
+\input eplain
+\input X-mybasics.tex
+\input pstricks
+\input pst-node \catcode`\@=12
+\input expex
+\input X-lingdoc
+\input X-code-beta
+\input X-timesfonts
+\input X-sections
+\input X-local-doc
+\input eptexfn
+
+%\gathertags
+%\gathercontents
+%\gathernotes
+
+%\refproofing
+%\indexproofingtrue
+
+\pageno=-1
+\get 000doc-cover
+\get X-contents
+\get 01_intro
+\get 02_Examples
+\get 03_XKV
+\get 04_Ex
+\get 05_MultiPart-Basics
+\get 06_MoreExamples
+\get 07_UserStyles
+\get 08_Judgments
+\get 09_Glosses-Basic
+\get 10_Glosses-Advanced
+\get 11_Refs
+\get 12_Tables
+\get 13_PSTricks
+\get 14_PageBreaks
+\input X-mkindex \bye
+
+\bye
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/0.toc b/Master/texmf-dist/doc/generic/expex/source/0.toc
new file mode 100644
index 00000000000..fe28019fec2
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/0.toc
@@ -0,0 +1,55 @@
+\sec {1} {Introduction } \writefill 1\par 
+\subsec {1.1} {Changes } \writefill 1\par 
+\subsec {1.2} {LaTex/Tex cooperation } \writefill 2\par 
+\subsec {1.3} {Acknowledgements } \writefill 2\par 
+\sec {2} {Some preliminary examples } \writefill 3\par 
+\sec {3} {XKV parameterization } \writefill 7\par 
+\sec {4} {Examples without parts } \writefill 8\par 
+\subsec {4.1} {Explicit example numbers } \writefill 11\par 
+\sec {5} {Examples with labeled parts: Basics } \writefill 13\par 
+\subsec {5.1} {{\fam \ttfam \twelvett nopreamble} } \writefill 14\par 
+\subsec {5.2} {Stipulated labels } \writefill 16\par 
+\sec {6} {More on examples, with and without labeled parts } \writefill 16\par 
+\subsec {6.1} {Relative versus fixed dimensions } \writefill 16\par 
+\subsec {6.2} {Anchoring } \writefill 17\par 
+\subsec {6.3} {Formatting the labels } \writefill 18\par 
+\subsec {6.4} {Aligning the labels } \writefill 19\par 
+\subsec {6.5} {User designed labeling } \writefill 21\par 
+\subsec {6.6} {The parameter {\fam \ttfam \twelvett sampleexno} } \writefill 23\par 
+\subsec {6.7} {IJAL style format of multiline examples } \writefill 24\par 
+\subsec {6.8} {Footnotes and endnotes } \writefill 27\par 
+\sec {7} {User defined styles } \writefill 28\par 
+\sec {8} {Judgment marks } \writefill 30\par 
+\sec {9} {Glosses } \writefill 32\par 
+\subsec {9.1} {Parameters } \writefill 35\par 
+\subsec {9.2} {The width of the gloss } \writefill 36\par 
+\subsec {9.3} {Comments and citations } \writefill 38\par 
+\subsec {9.4} {Exceptional {\fam \ttfam \twelvett \char "5C gla} items } \writefill 39\par 
+\subsec {9.5} {Line spacing in wrapped glosses } \writefill 41\par 
+\sec {10} {More on Glosses } \writefill 46\par 
+\subsec {10.1} {User defined levels } \writefill 46\par 
+\subsec {10.2} {Positioning the free translation to the right of the interlinear gloss } \writefill 47\par 
+\subsec {10.3} {Glosses with a side panel } \writefill 48\par 
+\subsec {10.4} {Cascading hanging indentation in glosses } \writefill 50\par 
+\subsec {10.5} {Gloss underfixes } \writefill 51\par 
+\sec {11} {Referring to examples and labeled parts of examples } \writefill 52\par 
+\subsec {11.1} {Unnamed reference } \writefill 52\par 
+\subsec {11.2} {Named reference } \writefill 53\par 
+\subsec {11.3} {Proofing references } \writefill 54\par 
+\subsec {11.4} {The tag/reference file } \writefill 55\par 
+\subsec {11.5} {References to references, references as values } \writefill 55\par 
+\subsec {11.6} {Extensions of the tag/reference mechanism } \writefill 57\par 
+\subsec {11.7} {The parameter {\fam \ttfam \twelvett fullreformat} } \writefill 57\par 
+\subsec {11.8} {Reference to a part of a multipart example } \writefill 58\par 
+\subsec {11.9} {Support for the LaTex {\fam \ttfam \twelvett \char "5C label} and {\fam \ttfam \twelvett \char "5C ref} commands} \writefill 59\par 
+\sec {12} {Tables in examples } \writefill 59\par 
+\subsec {12.1} {Tables with labeled lines } \writefill 61\par 
+\subsec {12.2} {Tagging implicit labels in tables } \writefill 62\par 
+\subsec {12.3} {Some useful table making tools } \writefill 63\par 
+\subsec {12.4} {Tables that can break between pages } \writefill 64\par 
+\subsec {12.5} {Squeezing tables into tight places } \writefill 66\par 
+\sec {13} {ExPex and PSTricks } \writefill 67\par 
+\sec {14} {Control over page breaking inside examples } \writefill 68\par 
+\subsec {14.1} {Discouraging page breaks in examples } \writefill 69\par 
+\subsec {14.2} {Controlling where page breaks occur in examples (if they must) } \writefill 70\par 
+\tocidx {Index of control sequences, parameters, and special symbols} {} \writefill 71\par 
diff --git a/Master/texmf-dist/doc/generic/expex/source/000doc-cover.tex b/Master/texmf-dist/doc/generic/expex/source/000doc-cover.tex
new file mode 100644
index 00000000000..3b1074f8983
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/000doc-cover.tex
@@ -0,0 +1,56 @@
+\everymath={}
+\parindent=0pt
+\font\namefont=t1xr at 16pt
+\font\namefontsl=t1xsl at 16pt
+
+\leavevmode \vfil
+\hfil\psscalebox{8}{\sl ExPex}
+\vskip1.5em
+\hfil\psscalebox{3}{for linguists}
+\vskip2em
+\line{\hss\psscalebox{2}{Example formatting, glosses, and
+reference}\hss}
+\vfil\vfil\vfil\kern2em
+
+\framedisplay
+\pex[nopreamble,aboveglftskip=.6ex,interpartskip=2ex]
+\everymath={}%
+\def\\#1{-{\tenrm #1}}%
+\a
+\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\\{ACC} Hans not annoy would
+his\\{DAT} girlfriend\\{DAT} her\\{ACC} heart\\{ACC} {out to
+throw} //
+\glft `Mary is sure that it would not annoy John to reveal her
+heart to his girlfriend.'//
+\endgl
+\a
+\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\\{DAT} girlfriend\\{DAT} her\\{ACC}
+heart\\{ACC} {out to throw} the\\{DAT} Hans not damage would//
+\glft `Mary is sure that to reveal her heart to his girlfriend
+would not damage John.'//
+\endgl
+\xe
+\endframedisplay
+
+\vfil
+\vfil\vfil\kern2em
+\hfil\psscalebox{3}{User's Guide}
+\vskip1ex
+
+{\leftskip=0pt plus 1fil \parfillskip=0pt
+\rightskip=0pt plus 1fil \openup4pt
+\parindent=0pt \namefont
+John Frampton\par
+{\namefontsl j.frampton@neu.edu}\vskip14pt
+December 2012\par
+Version 4.1\par}
+
+
+\vfil\break
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/01_intro.tex b/Master/texmf-dist/doc/generic/expex/source/01_intro.tex
new file mode 100644
index 00000000000..37966586429
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/01_intro.tex
@@ -0,0 +1,138 @@
+
+\vfil
+\eject
+\global\pageno=1
+\section Introduction
+
+Many of the needs of linguists who wish to produce
+typographically attractive papers using \Tex\ or \LaTex\
+are not specific to linguistic papers.  There are therefore many
+macro packages which deal with tables of contents, references,
+section headings, font selection, indexing, etc. But linguistics
+does have some special typographic needs. I addressed two of
+these with the macro packages {\sl PST-JTree\/} and {\sl
+PST-ASR\/}, which typeset syntactic trees and autosegmental
+representations. \ExPex\ addresses the main remaining special
+\Tex\ need in linguistics: formatting examples, examples with
+multiple parts, glosses, and the like, and referring to examples
+and parts of examples. The name comes from the two central
+macros, |\ex| and |\pex|, used to typeset examples and examples
+with labeled parts.
+
+{\sl PST-JTree\/} and {\sl PST-ASR\/} rely heavily on Hendri
+Adriaens' \XKeyVal\ package, which has become the standard for
+\PSTricks\ based macro packages.  Although \ExPex\ is not based
+on \PSTricks\relax, it does handle parameterization the same
+way that {\sl PST-JTree\/} and {\sl PST-ASR\/} do. When
+{\sl expex.tex} is loaded, it immediately checks to see
+whether {\sl xkeyval.tex} has already been loaded.  If not,
+it does so.
+
+The goal in writing a macro package for general use is to make it
+simple to use if only simple things need to be done, but powerful
+enough so that users who have complex needs can get those needs
+satisfied if they are willing to deal with the complexities that
+complex needs inevitably involve.  If you think there are simple
+things that are not simple to do, or complex things that cannot
+be done, please write to me at {\sl j.frampton@neu.edu}.  The
+\ExPex\ macros have evolved over the last 15 or so years
+and like anything which evolves, various features of the current
+state may have more to do with history than with optimal design.
+Please let me know about departures from optimal design.  Perhaps
+the next version can be improved.
+
+This User's Guide begins with four examples which demonstrate
+\ExPex\ in action.  It serves as a ``A Quick Guide to {\sl
+Expex\/}''.  Each page gives some code at the top, with the
+product of this code below. Its main purpose is to give a sense
+of how \ExPex\ works, so that curious readers have some
+basis for determining whether they want to proceed with the
+details.  It is possible to begin to use \ExPex\ solely on
+the basis of the four demo pages and learn the more subtle
+capabilities as needed.  A quick survey of the index and the table
+of contents should give you some idea of what is available, if
+you need it.
+
+\subsection  Changes
+
+The most recent previous version of \ExPex\ is version 4.0c. That
+version  will still be available on my website, zipped as {\it
+expex40c.zip}. Aside from bug fixes, the changes in this version
+are to the control of line spacing in wrapped glosses.  Several
+new parameters have been introduced and some initial settings of
+parameters controlling glosses have been changed. 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 should now be considered obsolete and should be avoided in
+future work.  It will be eliminated at some point in the future.
+
+There was an undocumented feature of v4.0 that was used by some
+people, but has now been eliminated.  \ExPex\ no longer looks for
+a file {\it expex-add.tex\/} and loads it automatically if it is
+found.  This led to some very mysterious behavior when the user
+forgot about the presence of this file.  Such a file should be
+loaded explicitly.
+
+\subsection LaTex/Tex cooperation
+
+\ExPex\ is designed to be used by either {\sl Plain Tex\/} or \LaTex\
+users.  \LaTex\ users need to say |\usepackage{expex}| and \Tex\ users
+|\input expex|.  All of the code for the examples in this
+documentation should run equally well in either system, subject
+to the notes below.
+
+\subsubsection Note to \LaTex\ users
+
+|\it| (now a deprecated \LaTex\ command) is used in a few places.
+In case \ExPex\ detects that \LaTex\ is being used, it executes
+|\let\it=\itshape|.
+
+\subsubsection Note to \Tex\ users
+
+Three macros are used in the examples in this documentation which
+are defined in \LaTex\ but not in {\it Plain Tex}: |\footnotesize|,
+|\sc|, and |\textsc|.  Assuming, for example, that text is set in
+10pt computer modern, the following would suffice for all the
+examples in this documentation.
+
+\codedisplay
+\font\eightrm=cmr8
+\font\eightit=cmti8
+\def\footnotesize{\eightrm \let\it=\eightit \baselineskip=9pt}
+\font\tensc=cmcsc10
+\let\sc=\tensc
+\def\textsc#1{{\sc #1}}
+|endcodedisplay
+
+Most {\sl Plain Tex\/} users will have other fonts and much more
+general size changing macros at their disposal.  The code above
+is barely sufficient to handle the examples in this is
+documentation, but it will do the job. For what it is worth, this
+documentation was typeset using {\it Plain Tex}. |\twelvepoint| and
+|\tenpoint| were defined modeled on pages 414--415 in the {\sl
+TeXbook\/} and |\let\footnotesize=\tenpoint| was executed to
+define |\footnotesize|.  The running text is \textdim{12 pt}.
+|\sc| was defined by |\font\twelvesc=cmcsc10 scaled\magstep1|%
+\footnote{cmcsc10 scaled was used rather than
+cmcsc12 because Postscript fonts for cmcsc10 are more readily
+available than those for cmcsc12.}
+and |\let\sc=\twelvesc|%
+\footnote{Small caps are used only in text size}%
+.
+
+\subsection Acknowledgements
+
+Many participants in the {\sl Ling-Tex\/} discussion group have
+contributed to the development of \ExPex\relax, either by posing
+good questions, solving problems, or providing informed
+discussion of desirable features.  In particular, I thank Alexis
+Dimitriadis, Claude Dionne, Kevin Donnely, Antonio Fortin, Jeremy
+Hammond, Daniel Harbor, Joshua Jensen, Joost Kremers, John Lyon,
+Alan Munn, Christos Vlachos, and Natalie Weber.
+
+
+
+
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/02_Examples.tex b/Master/texmf-dist/doc/generic/expex/source/02_Examples.tex
new file mode 100644
index 00000000000..1908504f05c
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/02_Examples.tex
@@ -0,0 +1,10 @@
+
+\vfil\break
+\section Some preliminary examples
+
+\medskip
+\input example1
+\input example2
+\input example3
+\input example4
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/03_XKV.tex b/Master/texmf-dist/doc/generic/expex/source/03_XKV.tex
new file mode 100644
index 00000000000..0a5831f3121
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/03_XKV.tex
@@ -0,0 +1,142 @@
+
+%\def\typedim#1{\typed@m#1\@nil}
+%\def\typed@m#1 #2\@nil{$#1\,\rm #2$}
+\def\!{\kern-1.6pt}
+
+\section XKV parameterization
+
+\begininventory
+\macros* \idx{|\lingset|}\endmc
+\endinventory
+%
+(Here and in following sections and subsections, an inventory of
+the macros, parameters, and count registers which are described
+in what follows appears at the beginning of the section. ``What
+follows'' refers to the text up to the next section or subsection
+heading.)
+
+The key-value approach to parameter setting in \Tex, which
+originated with David Carlisle's |keyval| package, is illustrated
+by the key |glspace|. \ExPex\ uses to it set one of the
+parameters used in typesetting glosses.  Executing the command
+
+
+\sidx{|\lingset|}
+\exfrag
+|\lingset{glspace=1.3em}|
+\xe
+
+\noindent results in the definition (or redefinition) of the
+macro |\lingglspace| so that it expands to the value \textdim{1.3
+em}.
+The macro |\begingl|, which is used to typeset glosses, uses
+|\lingglspace|, typesetting the gloss so that the minimal
+interword separation is the dimension which |\lingglspace|
+expands~to.  But \ExPex\ users never have to concern themselves
+with the macro |\lingglspace|.  If they are not satisfied with
+the default spacing, they simply have to know that |glspace| is
+the key to setting the word spacing in glosses.
+
+The argument of |\lingset| can be a comma separated sequence of
+key/value pairs. The syntax is:
+
+\exfrag \everymath={}%
+|\lingset{«key$_1$»=«value$_1$»,«\dots»,«key$_n$»=«value$_n$»}|
+\xe
+%
+The comma separated key/value pairs are processed sequentially,
+from left to right. If a value contains a comma, it must be
+hidden from the mechanism which parses the list by putting the
+value in braces. The braces are removed by the parser.
+
+Several \ExPex\ macros take an optional argument, delimited by
+brackets, which is passed to |\lingset|.  |\begingl|, used to
+typeset glosses, takes an optional argument.  You might say, for
+example,
+
+\exfrag
+|\begingl[glspace=.9em,everyglft=\it]|
+\xe
+
+\noindent The optional argument of |\begingl| will be passed to
+|\lingset| and the result evaluated, so that the gloss will be
+typeset with these parameter settings.  This is carried out
+inside a group, so the global settings of the parameters are not
+affected. As we will see later, |everyglft=\it| will result in an
+italicized translation.
+
+\ExPex\ has various kinds of keys.  The distinctions depend on
+the effect of executing (\nextx) and the restrictions on the
+possible values which can appear.
+
+\ex
+|\lingset{«key»=«value»}|
+\xe
+
+\noindent {\it Command key\/}:\enspace
+After (\lastx) is executed, the macro |\ling«key»| or
+|\ling@«key»| expands to {\sl value}.  It will be made clear when
+the key is introduced whether it is |\ling«key»| or |\ling@«key»|
+that is
+defined.
+
+
+\smallskip
+\noindent {\it Incremental dimension parameter\/}:\enspace {\sl
+value\/} must be a dimension or a dimension prefixed by |!|. If
+{\sl value\/} is a dimension, it is stored in |\ling«key»|. If it
+is a !-prefixed dimension, the prefixed dimension is added to its
+former dimension and the result stored in |\ling«key»|. If
+|\ling@«key»| is undefined or does not expand to a dimension, a
+fatal error results.  Incremental parameters are very useful if
+minor adjustments to the format are desired.  There are {\it
+incremental skip parameters\/} as well, which operate on an
+entirely parallel manner.
+
+\smallskip
+\noindent {\it Choice parameter\/}:\enspace
+{\sl value\/} must be drawn from a prescribed list.  Although the
+\ExPex\ choice parameters do store {\sl value\/} when (\lastx)
+is executed, the main purpose of executing (\lastx) is the side
+effects which are coded into the definition of the key.
+
+The parameter |labelalign| illustrates this.
+|\lingset{labelalign=«value»}| is valid only if {\sl value\/} is
+one of |left|, |center|, or |right|.  A fatal error results
+otherwise.  The effect is to appropriately define the macro
+|\@labelprint| which is used to typeset the labels of subparts in
+multipart examples.
+\smallskip
+
+\smallskip
+\noindent {\it Pseudo parameter\/}: (\lastx) is executed for its
+side effects.  {\sl value\/} is not stored. The key |samplelabel|
+illustrates this.  When |\lingset{samplelabel=A.}| is executed,
+for example, the macro |\ling@samplelabel| is not defined.
+Instead, the parameter |labelwidth| is set to the width of
+``A.'' in the current font.
+
+\medskip
+In the interest of clarity, the exposition above was somewhat
+oversimplified (i.e. told some lies, but small lies).  The macro
+in which a value associated with {\sl key\/} is stored was
+assumed to be |\ling@«key»|.  In fact, some keys use
+|\ling«key»|, with no |@| in the macro name so that they are
+easier for the user to access. In those cases in which it
+appeared that there is a significant chance that some users will
+want easy access to the value of a parameter at some point, the
+macro name |\ling«key»| was used rather than |\ling@«key»|.
+
+When keys are defined, they can be given default values, as part
+of their definitions.  If a key |foo|, for example, is given the
+default value |2pt|, then executing |\lingset{foo}| is equivalent
+to executing |\lingset{foo=2pt}|.  Only a few \ExPex\ keys have
+default values, but most are set to an initial value in {\sl
+expex.tex}.
+
+
+
+
+
+
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/04_Ex.tex b/Master/texmf-dist/doc/generic/expex/source/04_Ex.tex
new file mode 100644
index 00000000000..f2270cc1653
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/04_Ex.tex
@@ -0,0 +1,290 @@
+
+\section Examples without parts
+
+\lingset{dima=1.3em}
+\noindent
+\begininventory
+\macros \idx{|\ex|}|~[]|, \idx{|\xe|}\endmc
+\counter \idx{|\excnt|}\endmc
+\parameters
+\idx{|numoffset|\user} & \inc dimension& \textdim{0 pt}\cr
+\idx{|textoffset|\user}& \inc dimension& \textdim{1 em}\cr
+\idx{|aboveexskip|\user}& \inc skip&
+   2.7\dimskip ex plus .4\dimskip ex minus .4\dimskip ex\cr
+\idx{|belowexskip|\user}& \inc skip&
+   2.7\dimskip ex plus .4\dimskip ex minus .4\dimskip ex\cr
+\idx{|exskip|}& skip& (pseudo-parameter)\cr
+\endinventory
+%
+Sections will usually begin with an inventory of the parameters and
+user friendly macros and registers that are introduced in the section,
+The initial settings of parameters will be given if they are relevant.
+Pseudo parameters are set for their immediate effect, not to store a
+setting associated with the parameter, so the initial setting of
+pseudo parameters is not relevant.
+|\ex~[]| above should be taken to mean that the macro
+|\ex| will be described, that it is optionally modified by a
+following diacritical tilde |~| (as described below), and that it
+optionally takes an argument.  The text will describe what
+arguments are permitted.  A $\dag$ supersript on a parameter in these
+inventories indicates a parameter whose value is
+accessible by the macro |\ling«key»|. A \inc\ prefix on ``dimension''
+or ``skip'' indicates that the parameter is incrementable, by a
+dimension or a skip as the case may be.
+
+|\ex| constructions are terminated by |\xe|.  The following
+sample paragraph illustrates the use of |\ex| \dots|\xe|. The
+convention in this manual is that text, {\it as it would appear in
+a document}, is displayed in a framed box, usually with the code
+immediately following or preceding. The code assumes that the
+initial parameter settings are in effect at the point that the
+code is executed.
+
+\framedisplay
+\exdisplay
+The following example is well-known from the literature on
+parasitic gaps.  Here we are concerned with example formatting,
+not with the interesting syntax.
+\ex
+I wonder which article John filed {\sl t\/} without reading {\sl e}.
+\xe
+Various aspects of the format are controlled by parameters, which
+can be set either globally or via an optional argument.
+\xe
+\endframedisplay
+\codedisplay~
+The following example is well-known from the literature on
+parasitic gaps.  Here we are concerned with example formatting,
+not with the interesting syntax.
+
+\ex
+I wonder which article John filed {\sl t\/} without reading {\sl e}.
+\xe
+
+\noindent Various aspects of the format are controlled by
+parameters, which can be set either globally or via an optional
+argument.|endcodedisplay
+
+Those users who try to save virtual paper can equally
+use:
+
+\codedisplay
+The following example is well-known from the literature on
+parasitic gaps.  Here we are concerned with example formatting,
+not with the interesting syntax.\ex I wonder which article John
+filed {\sl t\/} without reading {\sl e}.\xe Various aspects of
+the format are controlled by parameters, which can be set either
+globally or via an optional argument.|endcodedisplay
+
+With different parameter settings, we get:
+
+\framedisplay
+\exdisplay
+The following example is well-known from the literature on
+parasitic gaps.  Here we are concerned with example formatting,
+not with the interesting syntax.
+
+\ex[numoffset=2em,textoffset=.5em,aboveexskip=1ex,belowexskip=1ex]
+I wonder which article John filed {\sl t\/} without reading {\sl e}.
+\xe
+
+\noindent Various aspects of the format are controlled by
+parameters, which can be set either globally or via an optional
+argument.
+\xe
+\endframedisplay
+
+\codedisplay~
+The following example is well-known from the literature on
+parasitic gaps.  Here we are concerned with example formatting,
+not with the interesting syntax.
+
+\ex[numoffset=2em,textoffset=.5em,aboveexskip=1ex,belowexskip=1ex]
+I wonder which article John filed {\sl t\/} without reading {\sl e}.
+\xe
+
+\noindent Various aspects of the format are controlled by
+parameters, which can be set either globally or via an optional
+argument.|endcodedisplay
+
+The horizontal dimensions are illustrated below. |numoffset| is
+measured from the left margin.
+
+\bigskip
+\noindent
+\pspicture(0,-.9em)(4.9in,3em)
+\psscalebox{1.5}{%
+\psset{linewidth=.5pt,yunit=.2in}
+\def\vline#1{\psline[linestyle=dashed](#1,1)(#1,-.4)\ignorespaces}%
+\vline0
+\dimpuba=.35in
+\vline\dimpuba
+\pcline{<->}(0,1)(\dimpuba,1)
+\Aput{\eightrm numoffset}
+\setbox0=\hbox{(23)}%
+\rput[l](\dimpuba,0){\copy0}
+\dimpubb=\dimpuba \advance\dimpubb by\wd0
+\vline\dimpubb
+\dimpuba=\dimpubb \advance\dimpubb by .5in
+\vline\dimpubb
+\pcline{<->}(\dimpuba,1)(\dimpubb,1)
+\Aput{\eightrm textoffset}
+\rput[l](\dimpubb,0){This is the example text.}
+}\endpspicture
+\bigskip
+
+\noindent Example numbering is automatic.  The count is kept in
+|\excnt|.  It is incremented when |\ex| is expanded, before the
+number is typeset.  Outside examples, |\excnt| gives the count
+of the next example.   Inside examples, it also gives the count of the
+next example, not the current one.  Vertical skip is inserted
+before and after examples, of amounts determined by the values of
+|aboveexskip| and |belowexskip|.
+
+Inside |\ex| constructions, the example text is wrapped as
+ordinary text, with |\leftskip| set by |\ex|.  Since |\ex|
+sets |\leftskip| and relies on this setting, changes in |\leftskip|
+inside \hbox{|\ex| \dots|\xe|} must be made with care, but can be made
+after the first paragraph (i.e. after the first  explicit or
+implicit |\par|).
+
+\makeatletter
+\framedisplay
+\ex
+Und hier k\"onnen wir sehen was f\"ur Unfug wird gemacht
+wenn er einen ganz langen Satz binnen kriegt.\par\nobreak
+\xe
+
+\ex~
+$\alpha$ {\it governs\/} $\beta$ if $\alpha=X^0$ (in the
+sense of X-bar theory), $\alpha$ c-commands $\beta$, and $\beta$
+is not protected by a maximal projection.
+\xe
+\endframedisplay
+\resetatcatcode
+
+The code which was used to typeset the pair of examples above has
+two useful features which are worth highlighting.
+
+\codedisplay
+\ex
+Und hier k\"onnen wir sehen was f\"ur Unfug wird gemacht
+wenn er einen ganz langen Satz binnen kriegt.\par\nobreak
+\xe
+|exbreak
+\ex[aboveexskip=0pt]
+$\alpha$ {\it governs\/} $\beta$ if $\alpha=X^0$ (in the
+sense of X-bar theory), $\alpha$ c-commands $\beta$, and $\beta$
+is not protected by a maximal projection.
+\xe|endcodedisplay
+
+\noindent |\par\nobreak| is used to illustrate how a page break
+between two consecutive examples can be suppressed. This is
+sometimes desirable.  |\par| puts \Tex\ in the mode of adding
+lines to the page, and |\nobreak| tells \Tex\ to avoid a break
+(which is a page break when \Tex\ is in the mode of adding
+lines), essentially until after more text is added to the page.
+|aboveexskip=0pt| is used in the second example to avoid double
+spacing between the examples.  Otherwise vertical skip would be
+added both below the first example and above the second example.
+
+Since the need to suppress vertical skip above examples arises
+with some frequency, a shortcut is made available to accomplish
+this.  Simply say |\ex~|.  \sidx{|~|, tilde modification}Tilde
+modification of |\ex| can be used with parameters; |\ex~[|\dots|]| will be interpreted correctly.
+
+|exskip| is a pseudo parameter which can be used to
+simultaneously set both |aboveexskip| and |belowexskip|. The
+effect of |\lingset{exskip=«value»}| is
+
+\exfrag
+|\lingset{aboveexskip=«value»,belowexskip=«value»}|
+\xe
+
+\subsection Explicit example numbers
+
+\begininventory
+\parameters
+\idx{|exno|}& token list& (pseudo parameter)\cr
+\idx{|exnoformat|}& token list of the form $\;\ldots\,|X|\,\ldots$& |(X)|\cr
+\endinventory
+%
+Suppose that you want to repeat an example that was given earlier
+in your document.  Something like.
+
+\framedisplay
+\excnt=94
+\ex This is a crucial example.\xe
+It is clear that this example is related to the earlier
+example (14), which is repeated below.
+\ex[exno=14]
+This is an example that was given many pages earlier.\xe
+If we are on the right track, as the saying goes,
+we expect the next example to be grammatical.  But it is not.
+\ex * \dots\xe
+\endframedisplay
+
+\codedisplay~
+\ex This is a crucial example.\xe
+It is clear that this example is related to the earlier
+example (14), which is repeated below.
+\ex[exno=14]
+This is an example that was given many pages earlier.\xe
+If we are on the right track, as the saying goes,
+we expect the next example to be grammatical.  But it is not.
+\ex * \dots\xe
+|endcodedisplay
+
+|\excnt| is not incremented if the example number is
+supplied by |exno|.
+
+|exno| does not have to be set to an integer, as shown below.
+
+\framedisplay
+\ex[exno=$\Delta$] Earlier example.\xe
+\endframedisplay
+
+\codedisplay~
+\ex[exno=$\Delta$] Earlier example.\xe |endcodedisplay
+
+
+\framedisplay
+\ex[exno={[14, repeated]},exnoformat=X] Earlier example.\xe
+\endframedisplay
+\codedisplay~
+\ex[exno={[14, repeated]},exnoformat=X] Earlier example.\xe|endcodedisplay
+
+\noindent Note the use of braces to hide the comma in the setting
+of |exno|.  Otherwise, the key-value parser would get
+confused, interpreting |[14| as the setting of |exno| and
+reporting that |repeated| is an undefined key.  The initial setting of
+|exnoformat| is |(X)|, so this parameter must be reset to prevent
+putting parentheses around the special exno.  The label formatting mechanism is primitive.
+|labelformat| must
+be of the form\medskip
+\centerline{$\rm \langle balanced\
+text\rangle\thinspace|X|\thinspace \langle balanced\ text\rangle$}
+\medskip
+\noindent The pre-X text is inserted before the label (including
+the material specified by |everypar|) and the post-X text is
+inserted after the label. The balanced text cannot contain the
+character |X|.  {\it Balanced text\/} is a string of tokens with
+properly nested (explicit) braces. No error checking is done to
+ensure that the format specification has the required form, so be
+careful.  An error might lead to very obscure error messages.
+
+Note that
+\exfrag
+|\ex[exno={14, repeated},exnoformat={[X]}] Earlier example.\xe|
+\xe
+and
+\exfrag
+|\ex[exno={[14, repeated]},exnoformat=X] Earlier example.\xe|
+\xe
+give the same result.
+
+Section (\getref{named-reference}) will show how to name example
+numbers, so that |exno| can be set by giving the name of
+an example number.
+
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/05_MultiPart-Basics.tex b/Master/texmf-dist/doc/generic/expex/source/05_MultiPart-Basics.tex
new file mode 100644
index 00000000000..089d3d34b9e
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/05_MultiPart-Basics.tex
@@ -0,0 +1,269 @@
+
+\section Examples with labeled parts: Basics
+
+\begininventory
+\counter \idx{|\pexcnt|}\endmc
+\macros \idx{|\pex~[]|}, \idx{|\a[]|}\endmc
+\parameters
+\idx{|labeltype|}& name of a key-value list& |alpha|\cr
+\idx{|labeloffset|\user} & \inc dimension& \textdim{1 em}\cr
+\idx{|labelwidth|\user} & \inc dimension& \textdim{.72 em}\cr
+\idx{|preambleoffset|\user} & \inc dimension& \textdim{1 em}\cr
+\idx{|interpartskip|\user} & \inc skip&
+   1\dimskip ex plus .2\dimskip ex minus .2\dimskip ex\cr
+\idx{|belowgpreambleskip|\user} & \inc skip&
+   1\dimskip ex plus .2\dimskip ex minus .2\dimskip ex\cr
+\idx{|samplelabel|}& token list& (pseudo-parameter)\cr
+\endinventory
+%
+Typical examples are given below, with the initial parameter
+settings.\medskip
+
+\framedisplay
+\pex
+\a This is the first example.
+\a This is the second example.
+\xe
+
+\pex~<Pre> Multipart examples often have a title or preamble of some
+kind.
+\a This is the first example.
+\a This is the second example.
+\xe
+\endframedisplay
+
+\codedisplay~
+\pex
+\a This is the first example.
+\a This is the second example.
+\xe
+
+\pex~ Multipart examples often have a title or preamble of some kind.
+\a This is the first example.
+\a This is the second example.
+\xe |endcodedisplay
+
+\noindent
+Just like |\ex|, |\pex| must be closed by |\xe|, can be
+modified by a tilde diacritic to suppress adding vertical space
+above the example, and accepts parameters. The macro \idx{|\a|},
+which introduces each labeled part, is defined only
+within \hbox{|\pex| \dots|\xe|}.  It accepts certain parameters.
+Extra vertical skip (set by |interpartskip|) is inserted
+between the parts; and extra vertical skip (determined by
+|belowpreambleskip|) is inserted between
+the {\it preamble\/} and the first part.  The preamble is the
+visible material, if any, that appears after the example number
+and before the first part.
+
+The horizontal dimensions are parameterized as pictured below,
+provided that the anchoring parameters have their initial values.
+The parameters |numoffset| and |textoffset| are used in both
+|\ex| and |\pex| constructions.
+The effects of changing the settings of the
+anchoring parameters (|labelanchor| and |textanchor|) will be
+considered in Section \getref{anchors}.
+
+\exdisplay
+\makeatletter
+\vrule height1.6em depth3.5em width0pt
+\psscalebox{1.5}{%
+\parindent=0pt
+\leavevmode
+\lingset{numoffset=4.5em,preambleoffset=4em,labeloffset=3em,
+   textoffset=4em,labelwidth=.8em}
+\pnode(0,0){A}
+\lower5ex\vbox{\hsize=3.8in
+\psset{arrows=<->}
+\pex[exno=24]
+\a \pnode{E6}%
+This is an example.%
+\SpecialCoor
+\rput(A|E6){\pnode{E1}}
+\rput(E1){\pnode(\lingnumoffset,0){E2}}
+\rput(E6){\pnode(-\lingtextoffset,0){E5}}
+\rput(E5){\pnode(-\linglabelwidth,0){E4}}
+\rput(E4){\pnode(-\linglabeloffset,0){E3}}
+\psset{nodesep=0,labelsep=0}
+\pcline[offset=2.5ex](E1)(E2)
+\Aput{\strut\eighttt numoffset}
+\pcline[offset=2.5ex](E3)(E4)
+\Aput{\strut\eighttt labeloffset}
+\pcline[offset=2.5ex](E5)(E6)
+\Aput{\strut\eighttt textoffset}
+%\pcline[offset=-1.5ex,arrows=>-<,nodesep=-.65ex](E4)(E5)
+\pcline[offset=-1.5ex](E4)(E5)
+\Bput{\strut\eighttt labelwidth}
+\psset{offset=0,angle=90,linestyle=dotted,arrows=-}
+\XKV@for@n{1,2,3,4,5,6}\which{%
+   \pcline(E\which)([nodesep=3ex]E\which)}
+\pcline([nodesep=1.5ex]E4)([nodesep=-2ex]E4)
+\pcline([nodesep=1.5ex]E5)([nodesep=-2ex]E5)
+\xe}}%
+\xe
+Adjustment for the width of the example number is automatic, but
+the width of the label slot is a parameter setting, not adjusted
+to the width of the particular label which appears in the label
+slot.  The initial setting of |labelwidth| is the width of ``a.''
+at the point that the default setting is established.  This does
+not automatically change if the font is changed, in a footnote
+for example.  It can be set by the user explicitly by setting
+|labelwidth| to the desired dimension, or as an incremental
+change to its previous value (|labelwidth=!3pt|, for example,
+increases the width of the label slot by 3pt).  It can also be
+set indirectly by giving a sample label.  |labelwidth| is then
+set to the current width of that sample.  \ExPex\ sets the
+default label width by |samplelabel=a.|.
+
+\ExPex\ comes with three label types predefined: |alpha|,
+|caps|, and |numeric|.
+
+\beginss
+\pex[labeltype=alpha]
+\a First part.
+\a Second part.
+\xe |midss
+\pex[labeltype=alpha]
+\a First part.
+\a Second part.
+\xe
+\endss
+
+\beginss
+\pex[labeltype=caps]
+\a First part.
+\a Second part.
+\xe |midss
+\pex[labeltype=caps]
+\a First part.
+\a Second part.
+\xe
+\endss
+
+\beginss
+\pex[labeltype=numeric]
+\a First part.
+\a Second part.
+\xe |midss
+\pex[labeltype=numeric]
+\a First part.
+\a Second part.
+\xe
+\endss
+
+Section \getref{advanced} will detail all the parameters relevant
+to the label types and how additional label types can be defined
+by the user.
+
+%--------------------------------------
+\subsection {\tt nopreamble}
+
+\begininventory
+\parametersdef*
+\idx{|nopreamble|}& boolean& (not relevant)& \hfil true\cr
+\endinventory
+%
+In order to properly format examples with parts, there are
+various reasons that |\pex| must be able to figure out whether
+or not there is a preamble.  One reason is fairly obvious.  If
+there is a preamble, every part introduced by |\a| must start on
+a new line, otherwise only parts after the first part start a new
+line.  |\pex| tries to figure it out without help.  If |\a|
+directly follows |\pex|(|~|)(|[|\dots|]|) and perhaps a following
+space, |\pex| knows there is no preamble and acts accordingly.
+There are a few other following tokens, considered later in this
+manual, that |\pex| also knows are not signals that there is a
+preamble.  But |\pex|'s preamble detection abilities are
+primitive.  The following, for example, will confuse |\pex|.
+
+\beginss
+\pex \it
+\a first
+\a second
+\xe|midss
+\pex \it
+\a first
+\a second
+\xe
+\endss
+The |\it| command is interpreted as a preamble.
+
+|\pex| needs some guidance in this case.  It is provided by the
+parameter |nopreamble|.
+
+\beginss
+\pex[nopreamble=true] \it
+\a first
+\a second
+\xe|midss
+\pex[nopreamble=true] \it
+\a first
+\a second
+\xe
+\endss
+
+In fact, it is a little simpler than this.  XKV parametrization
+allows one to stipulate a default value for each key that is
+defined.  If the key is given to the parameter setting machinery
+with no value, then the key is set to the default value.
+|nopreamble| has the default value |true|.  So the following is
+sufficient.
+
+\beginss
+\pex[nopreamble] \it
+\a first
+\a second
+\xe|midss
+\pex[nopreamble] \it
+\a first
+\a second
+\xe
+\endss
+
+The global setting of |nopreamble| is irrelevant to |\pex|, which
+always assumes there is a preamble unless it sees an immediately
+following |\a| or |\pex| or is told directly that there is no
+preamble. In the following, for example, the setting of
+|nopreamble| outside |\pex| has no effect.
+
+\beginss
+\lingset{nopreamble=true}
+\pex \it
+\a first
+\a second
+\xe|midss
+\lingset{nopreamble=true}
+\pex \it
+\a first
+\a second
+\xe
+\endss
+
+%\font\titlett=txtt at 13.3pt
+
+\subsection Stipulated labels
+
+\begininventory
+\parameters*
+|label|& token list& |{}|\cr
+\endinventory
+%
+|label| is recognized as a key only by the |\a| macro.    % =«value»
+If |label=«value»| is passed to |\a|,  that value is inserted as the
+label, ignoring automatic label generation.
+
+\beginss
+\pex[exno=47]
+\a[label=b]
+\a[label=d]
+\a[label=g]
+\xe|midss
+\pex[exno=47]
+\a[label=b]
+\a[label=d]
+\a[label=g]
+\xe
+\endss
+
+\noindent Besides |label|, the only other key that |\a|
+recognizes is |tag|.  See Section \getref{named-reference}.
diff --git a/Master/texmf-dist/doc/generic/expex/source/06_MoreExamples.tex b/Master/texmf-dist/doc/generic/expex/source/06_MoreExamples.tex
new file mode 100644
index 00000000000..49ff970782d
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/06_MoreExamples.tex
@@ -0,0 +1,1021 @@
+
+%\makeatletter
+%\def\showpex{%
+%   \edef\resetexcnt{\noexpand\global\noexpand\excnt=\the\excnt}%
+%   \quad
+%   \psscalebox{1.5}{%
+%   \vrule height.5em depth4.6em width0pt
+%   \parindent=0pt
+%   \leavevmode
+%   \Lingset{numoffset=4.5em,preambleoffset=4em,labeloffset=3em,
+%      textoffset=4em,labelwidth=.8em,arrows=<->}
+%   \pnode(0,0){A}
+%   \lower10ex\vbox{\hsize=3.8in
+%   \excnt=23
+%   \pex
+%   \pnode(-\lingpreambleoffset,0){B3}\pnode{B4}
+%   This is the preamble.
+%   \a \pnode{E4}%
+%   This is an example.%
+%   \SpecialCoor
+%   \rput(A|B3){\pnode{B1}}
+%   \rput(B1){\pnode(\lingnumoffset,0){B2}}
+%   \rput(E4){\pnode(-\lingtextoffset,0){E3}}
+%   \rput(E3){\pnode(-\linglabelwidth,0){E2}}
+%   \rput(E2){\pnode(-\linglabeloffset,0){E1}}
+%   \psset{nodesep=0,labelsep=0}
+%   \pcline[offset=2.5ex](B1)(B2)
+%   \Aput{\strut\eighttt numoffset}
+%   \pcline[offset=2.5ex](B3)(B4)
+%   \Aput{\strut\eighttt preambleoffset}
+%   \pcline[offset=-1.5ex](E1)(E2)
+%   \Bput{\strut\eighttt labeloffset}
+%   \pcline[offset=-1.5ex](E3)(E4)
+%   \Bput{\strut\eighttt textoffset}
+%   \psset{offset=0,angle=90,linestyle=dotted,arrows=-}
+%   \XKV@for@n{1,2,3,4}\which{%
+%      \pcline(B\which)([nodesep=3ex]B\which)}%
+%   \XKV@for@n{1,2,3,4}\which{%
+%      \pcline([nodesep=1.5ex]E\which)([nodesep=-2ex]E\which)}%
+%   \xe}}%
+%   \resetexcnt
+%}
+%\resetatcatcode
+%--------------------------------------
+\section More on examples, with and without labeled parts
+
+\deftagsec{advanced}
+In this section, we take up complications and fine points.  Users
+should ignore it until they face a problem that the earlier
+sections do not deal with.
+
+\subsection Relative versus fixed dimensions
+
+{\it Tex\/} has two kinds of dimensional units.  Dimensions
+specified in term of ``pts'', ``inches'', ``cm'', etc. are fixed.
+Dimensions specified in terms of the units ``em'' or ``ex'' are
+relative to the particular text font that is current.
+Historically, an em is the width of a capital M and an ex is the
+height of a lowercase x.  This is still more or less true, but
+each font is free to specify the equivalents in any way that it
+sees fit.  The difference has important implications for
+parameter setting.  A value specified in terms of em or ex units
+can be used without change in both the main text and footnotes,
+for example.  If we set |textoffset=1em| at the beginning of a
+document, the proportions will stay the same whether we used 10pt
+or 12pt type, or 8 or 9 pt type in footnotes.
+If the document is set in 12pt type, and 1em is specified to be
+12pt in that main text font, it makes no difference for
+typesetting in the main text font whether we set |textoffset=1em|
+or |textoffset=12pt|.  But it does make a difference in sections
+of the document where a font with a different em dimension is
+used.  If we switch to a font with a 10pt em unit, then the first
+specification will give a physical offset of 10pt, but the second
+will give a physical offset of 12pt.
+
+When a dimension or skip parameter is reset by incrementing the old
+value, the new value is specified as a fixed dimension, which will
+not scale with font changes.  The same is true of setting lengths
+indirectly by setting |labelwidth| or |exnowidth|.  Adjusting a
+parameter by incrementing the old value, or using |samplelabel|
+or |exnowidth| to set the width of the label slot or the
+effective width of the example number, should only be used to
+make local adjustments, not at a level which has font size
+changes in its scope.  For this reason, {\sl expex.tex\/}
+specifies the label width in the label type |alpha| by
+|labelwidth=.72em|, not by |samplelabel=a.|.\footnote{%
+In the font
+that I happen to be using to write this section, the alphabetical
+labels (including the period) a--d have widths varying from
+\textdim{.694 em} to \textdim{.75 em}; the capital labels A--D
+have widths varying from \textdim{.917 em} to \textdim{.972 em};
+and the integer labels for 1 to 9 all have width \textdim{.75
+em}. The label width settings for the label types |alpha|
+(\textdim{.72 em}) and |caps| (\textdim{.94 em}) are good
+compromises.}
+Setting |labelwidth| via the second method would only be
+satisfactory if the fonts in force at the points that |\pex| is
+used is the same as the font in force when {\sl expex.tex\/} is
+input and the |alpha| style defined.
+
+\subsection Anchoring
+
+\deftagsec{anchors}%
+\begininventory
+\parameters
+\idx{|labelanchor|}& |numright|, |numleft|, or |margin|&
+   |numright|\cr
+\idx{|preambleanchor|}& |numright|, |labelleft|, or |text|&
+   |numright|\cr
+\idx{|textanchor|}& |numleft| or |normal|& |normal|\cr
+\endinventory
+%\sidx{|numleft| (|textanchor| value)}%
+%\sidx{|normal| (|textanchor| value)}%
+%
+Initially, the left edge of the label slot is determined by its
+offset from the right edge of the number, the left edge of the
+preamble is also determined by its offset from the left edge of
+the number, and the left edge of the text is determined by its
+offset from the right edge of the label slot.  But the ``anchor''
+for an offset is parametrized.  In the example below, it is
+useful to anchor the labeloffset at the left edge of the example
+number.
+
+\begingroup
+\setss .55 .38
+\beginss
+\pex[exno={[47, partially repeated from
+   p. 32]},labelanchor=numleft,
+   exnoformat=X,labeloffset=1.5em]
+\par
+\a[label=b] first
+\a[label=d] second
+\a[label=g] third
+\xe|midss
+%\pex[exno={47, partially repeated from
+%   p. 32},labelanchor=numleft,exnoformat={[X]},
+%   labeloffset=1.5em]
+\pex[exno={[47, partially repeated from
+   p. 32]},labelanchor=numleft,exnoformat=X,
+   labeloffset=1.5em]
+\par
+\a[label=b] first
+\a[label=d] second
+\a[label=g] third
+\xe
+\endss
+\endgroup
+\noindent Braces are needed in the specification of the
+value of |exno|, otherwise |\pex| would think that the key |exno|
+was set to the value |[47| and try to set the key |partially
+repeated from p. 32| to its default value. |exnoformat| is set to |X|
+so that parentheses are not put around the special exno.
+
+The following would work equally well:
+
+\def\stuff{$\vdots$}
+\codedisplay
+\pex[exno={47, partially repeated from
+   p. 32},labelanchor=numleft,exnoformat={[X]},
+   labeloffset=1.5em]
+          |stuff
+|endcodedisplay
+Braces are needed around |[X]| so that the mechanism that reads the
+optional argument of |\pex| does not interpret the right bracket as
+the right delimiter of the optional argument.
+
+The |normal| setting of |textanchor| anchors the text at the
+right edge of the number for |\ex| constructions and the right edge
+of the label slot for |\pex| constructions.
+
+Here is another example:
+\beginss
+\lingset{textanchor=numleft,
+   labelanchor=numleft,
+   labeloffset=.35in,
+   textoffset=.7in}
+\pex[exno=9]
+\a first
+\a second
+\xe
+\bigskip
+\pex[exno=10]
+\a first
+\a[label=aa] second
+\xe|midss
+\lingset{textanchor=numleft,
+   labelanchor=numleft,
+   labeloffset=.35in,
+   textoffset=.7in}
+\pex[exno=9]
+\a first
+\a second
+\xe
+\bigskip
+\pex[exno=10]
+\a first
+\a[label=aa] second
+\xe
+\endss
+\noindent Some publications demand this style, in which both the
+label and text offsets are measured from the left edge of the
+number, or from the margin. It is a relic of typewriter days with
+mechanical tabs.
+
+\subsection Formatting the labels
+
+\begininventory
+\parameters
+\idx{|everylabel|}& token list\qquad& |{}|\cr
+\idx{|labelformat|}& \dots\ |A| \dots & |A.|\cr
+\endinventory
+\deftagpage{labelformatpage}
+%
+\noindent The token list |everylabel| is inserted just before labels
+are typeset.  It is grouped so that it affects only the label.  The
+main use is to set the font used for the labels if it differs from the
+font in the running text.  For example:
+
+\beginss
+\pex[everylabel=\it]
+\a one
+\a two
+\xe|midss
+\pex[everylabel=\it]<everylabel1>
+\a one
+\a two
+\xe
+\endss
+
+There are other uses aside from setting the label font.
+
+\beginss
+\pex[everylabel=A,labeltype=numeric,
+   samplelabel=A1.]
+\a An example
+\a An example
+\a An example
+\xe|midss
+\pex[everylabel=A,labeltype=numeric,
+   samplelabel=A1.]
+\a An example
+\a An example
+\a An example
+\xe
+\endss
+
+The effect of the value of |labelformat| is illustrated in
+(\nextx).
+
+\setss .6 .35
+
+\beginss
+\pex[labelformat=$\langle$A$\rangle$,
+   samplelabel=$\langle$a$\rangle$]
+\a first
+\a second
+\xe|midss
+\pex[labelformat=$\langle A\rangle$,
+   samplelabel=$\langle A\rangle$]
+\a first
+\a second
+\xe
+\endss
+
+The example above is fanciful, but one sometimes sees examples in the
+format below.
+
+\beginss
+\pex[exnoformat=X.,labeltype=roman,
+   labelformat=(A),samplelabel=(iii)]
+\a first
+\a second
+\a third
+\a fourth
+\xe|midss
+\pex[exnoformat=X.,labeltype=roman,
+   labelformat=(A),samplelabel=(iii)]<sometimes>
+\a first
+\a second
+\a third
+\a fourth
+\xe
+\endss
+
+The label formatting mechanism is primitive.
+|labelformat| must
+be of the form\medskip
+\centerline{$\rm \langle balanced\
+text\rangle\thinspace|A|\thinspace \langle balanced\ text\rangle$}
+\medskip
+\noindent The pre-A text is inserted before the label (including
+the material specified by |everylabel|) and the post-A text is
+inserted after the label. The balanced text cannot contain the
+character |A|.  {\it Balanced text\/} is a string of tokens with
+properly nested (explicit) braces. No error checking is done to
+ensure that the format specification has the required form, so be
+careful.  An error might lead to very obscure error messages.
+
+There is some redundancy.  The following is an alternate way to get
+the effect in (\getref{everylabel1}) using |labelformat| instead of
+|everylabel|.
+
+\beginss
+\pex[labelformat=\it A.]
+\a one
+\a two
+\xe|midss
+\pex[labelformat=\it A.]
+\a one
+\a two
+\xe
+\endss
+
+Another style sometimes found in footnotes is like the one in
+(\getref{sometimes}), except that the labels are right aligned in the
+label slot.
+
+\subsection Aligning the labels
+
+\begininventory
+\parameters
+\idx{|labelalign|}& |left|, |right|, or |margin|&
+   \hfil |left|\cr
+\endinventory
+
+\noindent There is a choice of left, right, or center alignment of the
+labels in the label slot.  This is chosen by the parameter
+\idx{|labelalign|}, which can be set to |left|, |center|, or |right|.
+For example,
+
+\beginss
+\pex[exno=43,labeltype=roman,
+   labelformat=(A),labelalign=right,
+   samplelabel=(iii)]
+\a first
+\a second
+\a third
+\a fourth
+\xe|midss
+\pex[exno=43,labeltype=roman,
+   labelformat=(A),labelalign=right,
+   samplelabel=(iii)]
+\a first
+\a second
+\a third
+\a fourth
+\xe
+\endss
+This style looks odd to me, but this is the style for multipart examples
+{\it in the main text\/} in Chomsky's {\it Lectures on Government
+and Binding}.  In footnotes, the style is:
+
+\beginss
+\pex[exno=i,labeltype=alpha,
+   samplelabel=(a),labelformat=(A)]
+\a first
+\a second
+\a third
+\a fourth
+\xe|midss
+\pex[exno=i,labeltype=alpha,
+   samplelabel=(a),labelformat=(A)]
+\a first
+\a second
+\a third
+\a fourth
+\xe
+\endss
+
+If you look carefully, the vertical column of parts labels in the last
+example looks somewhat ragged because the width of ``(b)'' is
+slightly larger than the width of ``(c)''.  Center alignment of the
+labels gives a neater appearance.
+
+\beginss
+\pex[exno=i,labeltype=alpha,
+   samplelabel=(a),labelformat=(A),
+   labelalign=center]
+\a first
+\a second
+\a third
+\a fourth
+\xe|midss
+\pex[exno=i,labeltype=alpha,
+   samplelabel=(a),labelformat=(A),
+   labelalign=center]
+\a first
+\a second
+\a third
+\a fourth
+\xe
+\endss
+
+For more ordinary |\pex| constructions which use the letters or
+numbers which have roughly the same width, label alignment is not
+a significant concern.  But if labels include, for example, the
+narrow letter ``i'' and the wide letter ``m'', as below, label
+alignment has a noticeable effect on the appearance.  Individual
+tastes (and publisher's demands) may differ, but I prefer center
+alignment in these cases.
+
+\line{%
+\lingset{belowpreambleskip=.4ex,interpartskip=.3ex,
+   everyex=\advance\pexcnt by 8,samplelabel=m.}%
+\hsize=.33\hsize
+\vbox{%
+\pex[labelalign=left]<triplea1>
+{\it left aligned labels}
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\xe}%
+\vbox{%
+\pex[labelalign=center]
+{\it center aligned labels}
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\xe}
+\vbox{%
+\pex[labelalign=right]<triplea3>
+{\it right aligned labels}
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\xe}}
+
+If the labels are numeric, label alignment can have an even bigger
+effect.  Again, individual tastes and publishers' demands may
+differ.  My preference is right alignment in this case.
+
+\line{%
+\lingset{interpartskip=.3ex,labeltype=numeric,
+   everyex=\advance\pexcnt by 6,samplelabel=10.}%
+\hsize=.33\hsize
+\vbox{%
+\pex[labelalign=left]<tripleb1>
+{\it left aligned labels}
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\xe}\hfil
+\vbox{%
+\pex[labelalign=center]
+{\it center aligned labels}
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\xe}\hfil
+\vbox{%
+\pex[labelalign=right]<tripleb3>
+{\it right aligned labels}
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\a A typical example.
+\xe}}
+
+The initial setting is left alignment for letters (either
+uppercase or lowercase) and right alignment for numbers. Unless
+numbers or letters of significantly different widths appear as
+labels, most users will not notice the difference and can safely
+ignore the issue.
+
+It is a side issue, but the reader may have wondered how
+(\getref{triplea1}--\getref{triplea3}) and
+(\getref{tripleb1}--\getref{tripleb3}) were typeset. The idea is
+simple.  You say:
+
+\codedisplay
+\line{\divide\hsize by 3
+   \vbox{\pex|verbdots \xe}\hss
+   \vbox{\pex|verbdots\xe}\hss
+   \vbox{\pex|verbdots \xe}}
+|endcodedisplay
+|\hss| is used to give a little stretch or shrink so that
+dimensional rounding does not lead to an under or overfull
+|\line{| \dots|}|.  It is important in examples like this that
+|\pexcnt| is incremented globally, so that the latter vboxes see
+the |\excnt| which results from an operation inside a previous
+vbox.  We will see later that in some situations this behaviour
+is not desirable and how it can be altered.
+
+Variations are useful.  One can easily imagine a situation in
+which something like the following is appropriate for two side by
+side examples.
+
+\codedisplay
+\line{%
+   \vbox{\hsize=.55\hsize \pex|verbdots \xe}\hss
+   \vbox{\hsize=.45\hsize \pex|verbdots \xe}}
+|endcodedisplay
+
+
+\subsection User designed labeling
+
+\begininventory
+\macros* \idx{|\definelabeltype|}\endmc
+\counter \idx{|\pexcnt|}\endmc
+\parameters
+\idx{|labelgen|}& |char|, |number|, or |list|&
+   |char|\cr
+|pexcnt|\sidx{|pexcnt|, parameter}& integer& |97|\cr
+\idx{|labellist|}& comma separated list& |{}|\cr
+\endinventory
+%
+If |labeltype| is set to |alpha|, the counter |\pexcnt| is set to
+97, the character code of lowercase a in standard roman font
+sets, and |labelgen| is set to |char|.  The successive labels are
+generated by taking the character corresponding to |\pexcnt| and
+stepping the counter by 1.  This relies on the fact that the
+alphabetical sequence of characters corresponds to the numerical
+order of the character codes of the characters.  Setting
+|labeltype| to |caps| is almost the same, except that |\pexcnt|
+is initialized to 65, the character code of uppercase A.  If
+|labeltype| is set to |numeric|, |labelgen| is set to |number|
+and |\pexcnt| is initialized to 1.  The labels are generated by
+taking the number corresponding to the value of |\pexcnt|.
+
+\let\mit=\twelvei
+Something like the following might be useful.  In the format I am
+using, |\mit| selects a math italics font which has the lowercase
+greek letters starting with the position 11.
+
+\beginss
+\pex[labelgen=char,pexcnt=11,
+   everylabel=\mit]
+\a
+\a
+\a
+\a
+\xe|midss
+\pex[labelgen=char,pexcnt=11,
+   everylabel=\mit]
+\a
+\a
+\a
+\a
+\xe
+\endss
+\noindent This scheme has a quirk if labels above $\xi$ are
+needed because the correspondence between numerical order and
+alphabetical order breaks down at this point.  {\it o} will be
+missing, with $\pi$ following $\xi$.
+
+This labeling scheme can be defined by:
+\codedisplay
+\definelabeltype{greekmath}{labelgen=char,pexcnt=11,everylabel=\mit,
+   labelformat=A.}
+|endcodedisplay
+%
+Then |\pex[labeltype=greekmath]| is sufficient to
+invoke this labeling style.
+
+If a sequence of character labels is needed which does not appear
+in sequence in a font, it is necessary to generate the labels
+from a list.  Documents in Greek, for example, face the following
+problem.  Roman letters were largely borrowed from the Greek
+alphabet, but Greek alphabetical order was not.  Common greek
+fonts place letters in the position of the borrowing, not in
+their natural order in the Greek alphabet.  Documents written in
+Greek, therefore, will have to generate the labels in multipart
+examples from a list. The solution is to set |labelgen| to
+|list|, and |labellist| to the desired list of labels.
+
+For example, suppose the label type |greek| is defined by
+\codedisplay
+\definelabeltype{greek}{labelgen=list,
+   labellist={a,b,g,d,e,z,h,j,i,k,l,m,n,x,o,p,r,sv,t,u,f,q,y,w}}
+|endcodedisplay
+%
+and that |\gr| selects one of the grmn series of fonts
+in the cb family of Greek fonts.
+
+\begingroup
+%\let\gr=\twelverm
+\font\gr=grmn1200
+\gr
+
+\definelabeltype{greek}{labelgen=list,
+   labellist={a,b,g,d,e,z,h,j,i,k,l,m,n,x,o,p,r,sv,t,u,f,q,y,w}}
+\lingset{labeltype=greek}
+
+\beginss
+\gr
+\pex[labeltype=greek]
+\a {\rm a,b,g,d,e,z}
+\a a,b,g,d,e,z
+\a {\rm a,b,c,d,e,f}
+\a a,b,c,d,e,f
+\a {\rm A,B,G,D,E,Z}
+\a A,B,G,D,E,Z
+\xe|midss
+\pex[labeltype=greek]
+\a {\rm a,b,g,d,e,z}
+\a a,b,g,d,e,z
+\a {\rm a,b,c,d,e,f}
+\a a,b,c,d,e,f
+\a {\rm A,B,G,D,E,Z}
+\a A,B,G,D,E,Z
+\xe
+\endss
+\endgroup
+
+\noindent ``sv'' appears in the list rather than ``v'' so that a
+nonfinal sigma is produced rather than a final sigma.  They
+differ.  ``v'' produces what amounts to a vertical strut of zero
+width, making the sigma nonfinal, but contributing no visible
+material. (Thanks to Christos Vlachos for this idea.)
+
+Of course, if the entire document is written in Greek, then
+\exfrag
+|\lingset{labeltype=greek}|
+\xe
+should have global scope, so that parameter
+setting is not necessary in each |\pex| construction.
+
+The computation is more efficient if the label list is shorter,
+so the label list should not be much longer than the longest list
+you anticipate using.  If more labels are called for than the
+list provides, labeling starts over again at the beginning and a
+warning is issued.
+
+\subsection The parameter {\tt sampleexno}
+
+\begininventory
+\parameters*
+\idx{|sampleexno|}& token list& \hfil |{}|\cr
+\endinventory
+%
+In some publications, if two examples are close together in the
+running text and the widths of the typeset example numbers are
+different, the offsets are modified so that the texts in the two
+examples are aligned.  The following is considered, under this
+stringent aesthetic, to be less than ideal.
+
+\framedisplay
+\keepexcntlocal \excnt=9
+\pex
+\a I consider firemen available. (generic only)
+\a I consider firemen intelligent. (generic only)
+\xe
+Exceptional case marking (ECM) verbs seem more or less to allow both
+existential and generic interpretations of complement subjects:
+\pex
+\a I believe firemen to be available. (both generic and existential)
+\a I believe violists to be intelligent. (generic only)
+\xe
+\endframedisplay
+
+\ExPex\ provides the parameter |sampleexno| to handle this formatting
+problem.  If the parameter is set to the empty token list, it has no
+effect of the formatting.  If it is set to a nonempty token list, that
+token list is put in an hbox and its width is taken to be the
+effective typeset width of the example number.
+
+\framedisplay
+\keepexcntlocal \excnt=9
+\pex[sampleexno=(10)]
+\a I consider firemen available. (generic only)
+\a I consider firemen intelligent. (generic only)
+\xe
+Exceptional case marking (ECM) verbs seem more or less to allow both
+existential and generic interpretations of complement subjects:
+\pex
+\a I believe firemen to be available. (both generic and existential)
+\a I believe violists to be intelligent. (generic only)
+\xe
+\endframedisplay
+\codedisplay~
+\pex[sampleexno=(10)]
+\a I consider firemen available. (generic only)
+\a I consider firemen intelligent. (generic only)
+\xe
+Exceptional case marking (ECM) verbs seem more or less to allow both
+existential and generic interpretations of complement subjects:
+\pex
+\a I believe firemen to be available. (both generic and existential)
+\a I believe violists to be intelligent. (generic only)
+\xe
+|endcodedisplay
+
+This kind of fine tuning should only be done at the immediately
+pre-publication point because it depends upon the final
+assignment of example numbers and an aesthetic judgement of when
+two multipart examples are ``visually close'' in the finished
+product.
+
+It seems to be common for publishers to do fine tuning of this
+sort in footnotes. There are two reasons for this. First,
+lowercase roman numerals are commonly used and their widths vary
+noticeably. Second, only a few examples are involved, assuming
+that examples numbers in a footnote start at (i), so the final
+assignments of example numbers is relatively easy to determine.
+The role of |sampleexno| in footnotes is taken up in Section
+\getref{fns}.
+
+\subsection IJAL style format of multiline examples
+
+\begininventory
+\macros* \idx{|\actualexno|}\endmc
+\parametersdef
+\idx{|avoidnumlabelclash|}& boolean& |false|& |true|\cr
+\idx{|appendtopexarg|}& token list& |{}|\cr
+\endinventory
+The formatting demands of the International Journal of
+American Linguistics (IJAL) require some additional
+parametrization.  Multipart examples look like this:
+
+\definelingstyle{IJAL}{%
+   avoidnumlabelclash=true,
+   labelanchor=numleft,labeloffset=0pt,
+   textanchor=normal,textoffset=1em,
+   preambleanchor=text,preambleoffset=0pt,
+   labelformat=(A),
+   everylabel=\actualexno,
+   appendtopexarg={samplelabel=(\actualexno a)}
+   }%
+\begingroup
+
+\lingset{lingstyle=IJAL}
+\pex[exno=4]<nonum>
+\a first
+\a second
+\xe
+
+\pex~[exno=64]
+Preamble
+\a first
+\a second
+\xe
+
+\pex~[exno=1025]
+Preamble
+\a first
+\a second
+\xe
+\endgroup
+
+A first approximation is
+
+\codedisplay
+\lingset{labelanchor=numleft,labeloffset=0pt,
+   textanchor=normal,textoffset=1.8em,
+   preambleanchor=text,preambleoffset=0pt,
+   labelformat=(A),everylabel=\actualexno}
+|endcodedisplay
+|\actualexno| expands to the numerical value in |\excnt|, provided
+no special example number is set by |exno|, otherwise to the
+special example number. But the results (below) have some
+major problems.
+
+\begingroup
+\lingset{labelanchor=numleft,labeloffset=0pt,
+   textanchor=normal,textoffset=1.8em,
+   preambleanchor=text,preambleoffset=0pt,
+   labelformat=(A),everylabel=\actualexno}
+\pex[exno=5]
+\a first
+\a second
+\deftag{5}{IJAL1}
+\xe
+
+\pex~[exno=65]
+Preamble
+\a first
+\a second
+\xe
+
+\pex~[exno=102]
+Preamble
+\a first
+\a second
+\xe
+
+There are two things that need to be done.  First, in order to
+avoid printing both the example number and the label of the first
+part in examples with no preamble, as is the case in
+(\getref{IJAL1}), printing the example number must be suppressed
+if there is no preamble. Second, in order to avoid the shrinking
+gap between the label and the text as more digits appear in the
+example number and it gets wider, the label width must be made
+dependent on the example number.
+
+\ExPex\ provides the boolean parameter |avoidnumlabelclash|
+which, if set to |true|, suppresses printing the example number
+in |\pex| constructions {\it if there is no preamble}.  It has
+the XKV default value |true|, so that it can be set by giving the
+key with no label.  Although it has the default value |true|, it
+has the initial value |false|.  So, with the parameters set as
+above, we get:
+
+\beginss
+\pex[exno=5,avoidnumlabelclash]
+\a first
+\a second
+\xe|midss
+\lingset{labelanchor=numleft,labeloffset=0pt,
+   textanchor=normal,textoffset=1.8em,
+   preambleanchor=text,preambleoffset=0pt,
+   labelformat=(A),everylabel=\actualexno}
+\pex[exno=5,avoidnumlabelclash]
+\a first
+\a second
+\xe
+\endss
+
+In order to solve the problem of the shrinking gap between the
+label and text, we could try something like
+|samplelabel=(\actualexno a)|. But it is considerably less than
+elegant to have to write this in every |\pex| example.  It will
+not produce the desired result to put
+|\lingset{samplelabel=(\actualexno a)}| at the beginning of the
+document.  |labelwidth| will be set to whatever the current width
+of |(\actualexno a)| is, which is not likely to be what you want
+for the entire document even if |\actualexno| happens to be
+defined at the point that the |\lingset| is
+executed.  To circumvent the global/local problem, \ExPex\
+provides the parameter |appendtopexarg|.  Its value (unexpanded)
+is appended to whatever other arguments are given to
+|\pex| and evaluated locally.
+
+\exfrag
+|\lingset{appendtopexarg={samplelabel=(\actualexno a)}|
+\xe
+accomplishes what we want.
+
+We can summarize the discussion by defining the IJAL style.
+
+\codedisplay
+\definelingstyle{IJAL}{labelwidth=2em,labelanchor=numleft,
+   labeloffset=0pt,labelformat=(A),everylabel=\actualexno,
+   textanchor=normal,textoffset=1em,preambleanchor=text,
+   preambleoffset=0pt,avoidnumlabelclash,
+   appendtopexarg={samplelabel=(\actualexno a)}}
+|endcodedisplay
+Then
+
+\definelingstyle{IJAL}{labelwidth=2em,labelanchor=numleft,
+   labeloffset=0pt,labelformat=(A),everylabel=\actualexno,
+   textanchor=normal,textoffset=1em,preambleanchor=text,
+   preambleoffset=0pt,avoidnumlabelclash,
+   appendtopexarg={samplelabel=(\actualexno a)}}%
+\edef\\{\noexpand\vskip\lingbelowexskip}%
+\beginss
+\lingset{lingstyle=IJAL}
+\pex[exno=5]
+\a first
+\a second
+\xe
+
+\pex~[exno=65]
+Preamble
+\a first
+\a second
+\xe
+
+\pex~[exno=1026]
+Preamble
+\a first
+\a second
+\xe|midss
+\lingset{lingstyle=IJAL}
+\pex~[exno=5]
+\a first
+\a second
+\xe
+\\
+\pex[exno=65]
+Preamble
+\a first
+\a second
+\xe
+\\
+\pex~[exno=1026]
+Preamble
+\a first
+\a second
+\xe
+\endss
+
+\endgroup
+
+%\excnt=34
+
+\subsection Footnotes and endnotes
+
+\deftagsec{fns}
+\begininventory
+\macros* \idx{|\keepexcntlocal|}\endmc
+\endinventory
+%
+Footnotes and endnotes pose a somewhat thorny problem since many different
+\Tex\ and \LaTex\ macros are used to typeset footnotes and endnotes.
+Further, there are different ways of assigning example numbers and
+labels in multipart examples in footnotes. The footnote
+referenced at the end of this sentence is representative.
+\footnote{%
+\lingset{sampleexno=(ii)}
+The existential reading does not seem to be available for subjects of
+small clause complements of {\it consider\/}:
+\pex
+\a I consider firemen available. (generic only)
+\a I consider firemen intelligent. (generic only)
+\xe
+Exceptional case marking (ECM) verbs seem more or less to allow both
+existential and generic interpretations of complement subjects:
+\pex
+\a I believe firemen to be available. (both generic and existential)
+\a I believe violists to be intelligent. (generic only)
+%\a \ljudge{??}I believe opera singers to know Hittite.
+\xe
+}
+It is an abbreviated version of footnote 17 in Chapter 2 of
+Diesing's {\sl Indefinites}, MIT Press.%
+This footnote style is fairly common.
+
+The \ExPex\ distribution contains two files, {\it eptexfn.tex\/} and
+{\it exltxfn.sty\/} which may be helpful in producing footnotes in
+this style.  They do two things.  First, they each define a macro
+(|\everyfootnote|) which, if evaluated at the start of processing a
+footnote, ensures that examples are correctly formatted.  Second, they
+each perform surgery on a standard |\footnote| macro so that
+(among other things) |\everyfootnote| is inserted in the
+appropriate place.
+
+I intend these macro files both to be used directly or to serve as
+models for the creation of variations which satisfy user needs. To the
+latter end, I will go through {\it expex.sty\/} and explain how it
+works.  The file listing is:
+
+\CLnum
+\makeatletter
+\def\everyfootnote{%
+   \keepexcntlocal
+   \excnt=1
+   \lingset{exskip=1ex,exnotype=roman,sampleexno=,
+      labeltype=alpha,labelanchor=numright,labeloffset=.6em,
+      textoffset=.6em}
+}
+\renewcommand{\@makefntext}[1]{%
+   \everyfootnote
+   \parindent=1em
+   \noindent
+   \@thefnmark.\enspace #1%
+}
+\resetatcatcode|endCLnum
+
+Lines 2--8 define the macro |\everyfootnote| which will be
+inserted into the footnote macro. It first ensures that changes
+in |excnt| that are made in the footnote are kept local to the
+footnote.  |\keepexcntlocal| is an \ExPex\ macro whose execution
+causes changes in |\exnt| to be kept local to the group in which
+|\keepexntlocalo| is executed.  Without |\keepexcntlocal|,
+changes in |excnt| inside a footnote would be visible outside the footnote group in
+which the changes occur. |excnt| is then initialized.  Finally,
+parameters are set which control the formatting of examples in
+the footnote. The LaTex |\footnote| command uses |\@makefntext| to
+typeset the footnote.  It is defined in the cls file
+which is used. The redefinition in lines 9--14 is a modification
+of the |\@makefntext| macro defined in {\it article.cls}. It
+first executes |\everyfootnote|, then prints the footnote number
+flush left at full footnote size, not as a superscript.
+
+Assuming that |\usepackage{epltxfn}| has been executed, the
+following code produces fn.~\the\fnno.
+\codedisplay
+\footnote{%
+\lingset{sampleexno=(ii)}
+The existential reading does not seem to be available for subjects of
+small clause complements of {\it consider\/}:
+\pex
+\a I consider firemen available. (generic only)
+\a I consider firemen intelligent. (generic only)
+\xe
+Exceptional case marking (ECM) verbs seem more or less to allow both
+existential and generic interpretations of complement subjects:
+\pex
+\a I believe firemen to be available. (both generic and existential)
+\a I believe violists to be intelligent. (generic only)
+\xe
+}
+|endcodedisplay
+
+The code in {\sl eptexfn.tex\/} is somewhat more complicated
+because {\it Plain Tex\/} does not number footnotes and uses the
+same font for running text and footnotes.  |\everyfootnote| is
+identical.  If it is compared with the footnote macros in the
+{\sl TexBook\/} (p. 363), on which it is modeled, it is easy to
+see the significance of the various modifications.
+
+I anticipate that although the footnote macros in {\sl epltxfn.sty\/}
+and {\sl eptexfn.tex\/} will be useful to some readers without
+modification, other users will need to modify them for one reason or
+the other.  Endnotes, in particular, will require work.  I hope that
+these two files will serve as useful models.  Of course, trivial
+modifications of the various dimensions can be done easily.  More
+extensive modification require appropriate levels of expertise.  Users
+should feel free to write to me directly ({\sl j.frampton@neu.edu\/}) or
+post questions to the {\sl Ling-Tex\/} discussion group, or to send me
+modifications that might prove useful to others.  A file {\it
+epltxfn-endnotes.sty}, for example, would be useful.
+
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/07_UserStyles.tex b/Master/texmf-dist/doc/generic/expex/source/07_UserStyles.tex
new file mode 100644
index 00000000000..9deb5edf58f
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/07_UserStyles.tex
@@ -0,0 +1,125 @@
+
+\section User defined styles
+
+\begininventory
+\macros* \idx{|\definelingstyle|}\endmc
+\parameters
+\idx{|everyex|\user}& token list& |{}|\cr
+\idx{|Everyex|\user}& token list& |{}|\cr
+\endinventory
+%
+Aside from all the \ExPex\ parameters introduced to this point,
+there are numerous \Tex\ parameters that affect the appearance
+of examples: line spacing, hsize, font selection, etc.  These are
+all quantities that \Tex\ itself provides mechanisms for setting
+to suit the user.  You may want to make adjustments of these
+parameters every time a particular kind of example is typeset, so
+that special settings hold inside these examples independently of
+the contextual settings.  For example, suppose you have many
+examples that, for some reason, you want to format like~(\nextx),
+with a narrow width, italic font, an oversized gap between the
+example number and the text, and a somewhat greater than normal
+separation between baselines.
+
+\framedisplay
+\leftline{\vbox{%
+\ex[textoffset=3em]
+\hsize=3in \rightskip=0pt plus 2em \it \advance\baselineskip by 2pt
+Und hier k\"onnen wir sehen was f\"ur Unfug wird gemacht
+wenn er einen ganz langen Satz binnen kriegt.
+\xe
+}\hfil}
+\endframedisplay
+
+One way to do this is:
+
+\codedisplay~
+\ex[textoffset=3em]
+\hsize=3in \rightskip=0pt plus 2em \it \advance\baselineskip by 2pt
+Und hier k\"onnen wir sehen was f\"ur Unfug wird gemacht
+wenn er einen ganz langen Satz binnen kriegt.
+\xe
+|endcodedisplay
+Some rightskip is included because with such a narrow width it is
+otherwise difficult to avoid overfull lines.
+
+If you have many examples that you want to typeset in this way
+that are scattered throughout a document, it is awkward to have
+to remember all of these settings and enter them each time an
+example of this kind needs to be formatted.  Furthermore, if you
+change your mind about some detail of this special formatting,
+you need to go through the document and change each instance of
+this formatting.  \ExPex\ allows you to package all the
+formatting changes into one named unit, called a ``style''.  If
+this style is called ``narrow italic'', then you can write the following
+to achieve the format of (\lastx).
+
+\codedisplay
+\ex[lingstyle=narrow italic]
+|endcodedisplay
+
+The various format specifications are packaged into a style
+by saying:
+
+\codedisplay
+\definelingstyle{narrow italic}{textoffset=3em,
+   everyex={\hsize=3in \rightskip=0pt plus 2em
+      \it \advance\baselineskip by 2pt}}
+|endcodedisplay
+Thereafter, setting the parameter |lingstyle| to |narrow italic|
+has the effect of setting all the parameters as specified in the
+style definition (the two parameters |textoffset| and |everyex|
+in this example). The parameter |everyex| works in the following
+way.  If |everyex| is set to {\sl value\/}, a macro |\lingeveryex|
+is defined whose expansion is {\sl value}.  When
+an |\ex| or |\pex| construction is initiated, {\it after\/} any
+parameter settings take effect, |\lingeveryex| is executed.
+
+\ExPex\ provides a second parameter, |Everyex|, which is similar to
+|expex|.  If |Expex| is set to value, a macro |ling@Everypex| is
+defined. When
+an |\ex| or |\pex| construction is initiated, {\it before\/} after any
+local parameter changes take effect, |\lingEveryex| is executed.
+The reasons for providing both |everyex| and |Everyex| are
+subtle. Different stages of the writing/rewriting/editing process
+may call for different treatments of example formatting,
+particularly if the final aim is a camera ready product.  Suppose
+you normally make double spaced drafts with an hsize of
+\textdim{6.5 in} and that your final aim is to produce camera ready copy with
+an hsize of \textdim{4.375 in}.  Suppose also that you are at
+editing stage where you want to see exactly how the examples
+will be formatted in the finished product, but still want full width
+double spaced text.  One way to accomplish this is to say
+
+\codedisplay
+\lingset{everyex={\hsize=4.375in \normalbaselines}}
+|endcodedisplay
+at the beginning of your document.  |\normalbaselines|
+is a standard \Tex\ macro which establishes the normal line
+spacing for the current font.  This makes the hsize and line
+spacing inside examples independent of the hsize and line spacing
+you select for the text (outside examples).
+
+This will accomplish what you want.  But it makes the further use
+of |everyex| in your document awkward.  If you want a particular
+example to be set in italics, for example, you might think to
+use:
+
+\codedisplay
+\ex[everyex=\it]
+|endcodedisplay
+
+\noindent This will certainly produce an italicized example
+because |\it| will be evaluated early on in typesetting the
+example.  But it has the unfortunate consequence of overwriting
+the initial setting of |everyex|, removing the special line
+spacing within examples.
+
+|Everyex| is provided to accommodate situations like this. The
+intention is that special settings that should hold inside
+examples throughout the document are assigned to |Everyex|, with
+|expex| reserved for local variations.  Since |\lingEveryex| is
+evaluated before local parameter changes take effect, parameter
+settings specified by |Expex| will be overridden by any local
+parameter settings.
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/08_Judgments.tex b/Master/texmf-dist/doc/generic/expex/source/08_Judgments.tex
new file mode 100644
index 00000000000..55556f3a277
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/08_Judgments.tex
@@ -0,0 +1,137 @@
+
+\section Judgment marks
+
+\deftagsec{starsec}
+\begininventory
+\macros \idx{|\judge|}, \idx{|\ljudge|}\endmc
+\parametersdef*
+\hfil |*|\sidx{|*|, parameter}& sample judgment string& \hfil |*|& \hfil |*|\cr
+\endinventory
+
+\noindent
+In examples without parts, not much needs to be said.
+
+\codedisplay
+\ex *Jack and Jill wented up the hill.\xe|endcodedisplay
+
+\framedisplay~
+\ex *Jack and Jill wented up the hill.\xe
+\endframedisplay
+
+In my view (\nextx), with a little whitespace inserted between
+the asterisk and the example sentence, looks somewhat better than
+(\lastx), but the difference is slight.
+
+\codedisplay
+\ex \judge* Jack and Jill is going up the hill.\xe|endcodedisplay
+
+\framedisplay~
+\ex \judge* Jack and Jill wented up the hill.\xe
+\endframedisplay
+
+\noindent \ExPex\ provides the macro |\judge| to
+accomplish this. |\judge| takes one argument.  A multi-character
+judgment diacritic therefore needs to be surrounded in braces.
+|\judge| also ignores following spaces.  So
+|\judge{??}Mary|\dots\ and \hbox{|\judge{??} Mary|\dots} produce
+the same thing, as do |\judge*Mary|\dots\ and |\judge* Mary|\dots
+
+Multipart examples are more complex, if alignment is to be
+maintained. If you find (\nextx) satisfactory, what follows will
+not be of much interest.  But it you would like the text (not
+including the judgment marks) to be aligned, read on.
+
+\framedisplay
+\pex
+\a There is a pair of pants on the floor.
+\a \judge{?*}There are a pair of pants on the floor.
+\a \judge*There is the pair of pants on the floor.
+\xe
+\endframedisplay
+
+\ExPex\ provides the macro |\ljudge| which pushes the judgment
+diacritics into the gap between the labels and the examples,
+instead of pushing the examples to the right to make room for the
+judgment diacritics.  So
+
+\codedisplay
+\pex
+\a There is a pair of pants on the floor.
+\a \ljudge{?*}There are a pair of pants on the floor.
+\a \ljudge*There is the pair of pants on the floor.
+\xe |endcodedisplay
+
+\noindent produces
+
+\framedisplay
+\pex
+\a There is a pair of pants on the floor.
+\a \ljudge{?*}There are a pair of pants on the floor.
+\a \ljudge*There is the pair of pants on the floor.
+\xe
+\endframedisplay
+
+\noindent Unfortunately, depending on the setting of
+|textoffset|, there is unlikely to be sufficient room for
+judgment diacritics in between the labels and the examples.
+|textoffset| needs to be increased to make room.
+
+\ExPex\ provides the pseudo parameter to
+facilitate adjusting the text offset.
+
+\codedisplay
+\pex[*=?*]
+\a There is a pair of pants on the floor.
+\a \ljudge{?*}There are a pair of pants on the floor.
+\a \ljudge*There is the pair of pants on the floor.
+\xe |endcodedisplay
+
+\framedisplay
+\pex[*=?*]
+\a There is a pair of pants on the floor.
+\a \ljudge{?*}There are a pair of pants on the floor.
+\a \ljudge*There is the pair of pants on the floor.
+\xe
+\endframedisplay
+
+\noindent |textoffset| is increased by the width of the judgment
+diacritic which is furnished as the value of the parameter |*|.
+
+If you say |\lingset{*}|, with no value assigned to |*|, it is
+given a default value, which happens to be |*|.  So |\lingset{*}|
+is equivalent to |\lingset{*=*}|.  So, for example:
+
+\codedisplay
+\pex[*]
+\a There is a pair of pants on the floor.
+\a \ljudge* There are a pair of pants on the floor.
+\a \ljudge* There is the pair of pants on the floor.
+\xe |endcodedisplay
+
+\framedisplay~
+\pex[*]
+\a There is a pair of pants on the floor.
+\a \ljudge* There are a pair of pants on the floor.
+\a \ljudge* There is the pair of pants on the floor.
+\xe
+\endframedisplay
+
+If you think that the text offset in (\blastx) is too large,
+|textoffset| can be further adjusted directly, so you could write
+
+\codedisplay
+\pex[*=?*,textoffset=!-.3em]
+\a There is a pair of pants on the floor.
+\a \ljudge{?*} There are a pair of pants on the floor.
+\a \ljudge* There is the pair of pants on the floor.
+\xe |endcodedisplay
+
+\framedisplay~
+\pex[*=?*,textoffset=!-.3em]
+\a There is a pair of pants on the floor.
+\a \ljudge{?*} There are a pair of pants on the floor.
+\a \ljudge* There is the pair of pants on the floor.
+\xe
+\endframedisplay
+
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/09_Glosses-Basic.tex b/Master/texmf-dist/doc/generic/expex/source/09_Glosses-Basic.tex
new file mode 100644
index 00000000000..6927698442a
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/09_Glosses-Basic.tex
@@ -0,0 +1,1005 @@
+\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.
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/10_Glosses-Advanced.tex b/Master/texmf-dist/doc/generic/expex/source/10_Glosses-Advanced.tex
new file mode 100644
index 00000000000..37959810bcd
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/10_Glosses-Advanced.tex
@@ -0,0 +1,378 @@
+
+\section More on Glosses
+
+\vskip-2ex
+\subsection User defined levels
+
+\begininventory
+\macros* \idx{|\defineglwlevels|}\endmc
+\endinventory
+%
+|\glb| and |\glc| are given definitions in {\it expex.tex\/}
+by the command |\defineglwlevels{b,c}|.  The command also creates the
+parameters |everyglb|, |everyglc|, |aboveglbskip|, and |aboveglcskip|.
+|everyglb| and |everyglc| are initialized to empty token lists and
+|aboveglbskip| and |aboveglcskip| to \textdim{0 pt}. The user may want
+to use |\defineglwlevels| to create and name new gloss
+levels.
+
+For example, suppose more suggestive level names are
+desired.
+
+\codedisplay
+\defineglwlevels{cat,gloss}
+\lingset{everyglcat=\footnotesize,aboveglcatskip=-.5ex}|exbreak
+
+\ex
+\begingl
+\gla k- wapm -a -s'i -m -wapunin -uk //
+\glcat Cl V Agr Neg Agr Tns Agr //|par|allowbreak
+\glgloss 2 see 3{\sc acc} {} {2\sc pl} preterit {3\sc pl} //
+\glft `you (pl) didn't see them'//
+\endgl
+\xe
+|endcodedisplay
+produces
+
+\framedisplay
+\defineglwlevels{cat,gloss}
+\lingset{everyglcat=\footnotesize,aboveglcatskip=-.5ex}
+
+\ex
+\begingl
+\gla k- wapm -a -s'i -m -wapunin -uk //
+\glcat Cl V Agr Neg Agr Tns Agr //
+\glgloss 2 see {3\sc acc} {} {2\sc pl} preterit {3\sc pl} //
+\glft `you (pl) didn't see them'//
+\endgl
+\xe
+\endframedisplay
+
+Another instance in which the user might want to define a new gloss level
+or levels is if more than 3 lines of interlinear gloss are needed and
+the desired flexibility cannot be obtained by repeated use of |\glb|
+or |\glc|.
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\subsection Positioning the free translation to the right of the
+interlinear gloss
+
+\begininventory
+\parameters
+\idx{|glftpos|}& choice (|below| or |right|)& |below|\cr
+\idx{|sssep|}& dimension& 3\dimskip em\cr
+\idx{|ssratio|}& decimal& |.6 |\cr
+\idx{|ssrightskip|}& skip& 0\dimskip pt plus 2\dimskip em\cr
+\idx{|glhangstyle|}& |normal|, |none|, or |cascade|& |normal|\cr
+\endinventory
+
+\lingset{everygl=\openup.5ex,
+   everyglword=\normalbaselines,everyglft=\normalbaselines,
+   glhangindent=2em}
+
+\framedisplay
+\ex[glftpos=right,glhangstyle=none]
+\let\\=\textsc
+\begingl
+\gla
+Hom\^{a}o sa \v{c}\^{o} p\^{o} tha  \~{n}u nao ng\u{a} hmua. \~{N}u
+dj\u{a} g\u{a}, \~{n}u dj\u{a} \v{c}\u{o}ng \~{n}u, laih gui r\^{e}o
+\~{n}u. Todang bboi r\^{o}k jolan \~{n}u nao hma, \~{n}u bb\^{o}h sa
+droi mr\u{a} d\u{o} bboi gah, a, hruh \~{n}u.//
+\glb
+\\{exist} one \\{clf} person old \\{3s} go do field \\{3s} hold
+machete \\{3s} hold hoe \\{3s} and carry.on.back back.basket \\{3s}
+while at along trail \\{3s} go field \\{3s} see one \\{clf} peacock
+stay at \\{drct} -- nest \\{3s}//
+\glft
+`There was an old person who went to work in the field. He took
+along his machete, he took along his hoe, and he carried his
+basket on his back. While he was on his way to the farm, he saw a
+peacock beside its nest.'//
+\endgl
+\xe
+\endframedisplay
+
+\noindent is achieved by
+\codedisplay~
+\ex[glftpos=right,glhangstyle=none]
+\let\\=\textsc
+\begingl
+\gla
+Hom\^{a}o sa \v{c}\^{o} p\^{o} tha  \~{n}u nao ng\u{a} hmua. \~{N}u
+dj\u{a} g\u{a}, \~{n}u dj\u{a} \v{c}\u{o}ng \~{n}u, laih gui r\^{e}o
+\~{n}u. Todang bboi r\^{o}k jolan \~{n}u nao hma, \~{n}u bb\^{o}h sa
+droi mr\u{a} d\u{o} bboi gah, a, hruh \~{n}u.//
+\glb
+\\{exist} one \\{clf} person old \\{3s} go do field \\{3s} hold
+machete \\{3s} hold hoe \\{3s} and carry.on.back back.basket \\{3s}
+while at along trail \\{3s} go field \\{3s} see one \\{clf} peacock
+stay at \\{drct} -- nest \\{3s}//
+\glft
+`There was an old person who went to work in the field. He took
+along his machete, he took along his hoe, and he carried his
+basket on his back. While he was on his way to the farm, he saw a
+peacock beside its nest.'//
+\endgl
+\xe
+|endcodedisplay
+(This example, as well as (\getref{panelex}), was contributed by
+Joshua Jensen.  It is from Jarai, an Austronesian language.  The
+story teller was Hyech Ksor.  The orthography here is somewhat
+simplified in order to keep the font requirements for the
+examples in this documentation elementary.)
+
+|ss| stands for ``side-by-side''. |sssep| gives the separation of the
+gloss and the free translation. |ssratio| gives the proportion of the
+available width that the gloss occupies. The point of hanging
+indentation is to visually separate the free translation and the
+gloss, so |glhangstyle=none| is completely satisfactory if the
+tree translation is on the right. But \ExPex\ will happily use
+hanging indentation with the free translation on the right.
+
+Line breaking in the free translation is delicate because it will
+generally set in a narrow column. The default setting of |ssrightskip|
+allows up to \textdim{2 em} departure from right alignment. This usually avoids
+overfull lines and awkward hyphenation.  |ssrightskip| can be
+increased (all the way to \textdim{0 pt} plus \textdim{1 fil}) if there is a
+problem, at the cost of a more ragged appearance.  This can be done
+globally, or simply in troublesome examples.
+
+\subsection Glosses with a side panel
+
+\begininventory
+\macros
+\idx{|\beginglpanel[]|}, \idx{|\endpanel|}\endmc
+\parameters*
+\idx{|everypanel|\user}& token list& |{}|\cr
+\endinventory
+The mechanism for positioning the free translation to the right of the
+interlinear gloss can be adapted to create a side panel for
+glosses which can be used for other purposes, as illustrated
+below.
+
+\framedisplay
+\ex[everypanel=\footnotesize]<panelex>
+\let\\=\textsc
+\beginglpanel[ssratio=.5,glhangstyle=none]
+\gla Hom\^{a}o$^1$ sa \v{c}\^{o} p\^{o} tha  \~{n}u nao ng\u{a}
+hmua. \~{N}u dj\u{a} g\u{a}, \~{n}u dj\u{a} \v{c}\u{o}ng \~{n}u,
+laih gui r\^{e}o \~{n}u. Todang bboi r\^{o}k jolan \~{n}u nao
+hma, \~{n}u bb\^{o}h sa droi mr\u{a} d\u{o}$\,^4$ bboi gah, a, hruh
+\~{n}u.//
+\glb \\{exist} one \\{clf} person old \\{3s} go$^2$ do field
+\\{3s} hold machete \\{3s} hold hoe \\{3s} and$^3$ carry.on.back
+back.basket \\{3s} while at along trail \\{3s} go field \\{3s}
+see one \\{clf} peacock stay at \\{drct} -- nest \\{3s}
+//
+\endgl
+1.\enspace {\it hom\^{a}o} also means `have', reflecting the
+strong tendency across languages to use the same word for
+possession and the existential. {\it hom\^{a}o} is clause-initial
+in existential clauses, but it comes after the subject in
+possession clauses.
+
+2.\enspace All verbs are glossed with a bare form, as Jarai has
+no inflectional morphology. Although Jarai has lexical items that
+encode tense, they are relatively infrequent in text.
+
+3.\enspace The word {\it laih} is literally `after; finish', but
+that is clearly not the meaning here. Probably {\it laih} here is
+an abbreviation for {\it laih an\u{u}n}, `after that; and', hence
+the gloss `and'.
+
+4.\enspace {\it d\u{o}} `sit, stay' is used like a copula in
+locative clauses, which is what I assume here (`a~peacock
+[which was] beside its nest'); however, this could just as well
+mean `a peacock sitting beside its nest', retaining the posture
+semantics.
+\endpanel
+\bigskip
+`There was an old person who went to work in the field. He took
+along his machete, he took along his hoe, and he carried his
+basket on his back. While he was on his way to the farm, he saw a
+peacock beside its nest.'
+\xe
+\endframedisplay
+
+The syntax is:
+\codedisplay
+\beginglpanel |dots \endgl |dots \endpanel
+|endcodedisplay
+The first part is the gloss, with the usual syntax.  The second
+part is put in a vbox and set alongside the gloss. The tokens
+|lingeverypanel| are inserted when the vbox begins. All of the
+parameters which are special to positioning the free translation
+to the right of the gloss apply here as well, with the obvious
+meanings.
+
+The complete code for the example above is:
+
+\codedisplay
+\ex[everypanel=\footnotesize]<panelex>
+\def\\#1{{\footnotesize\uppercase{#1}}}%
+\let\\=\textsc
+\beginglpanel[ssratio=.5,glhangstyle=none]
+\gla Hom\^{a}o$^1$ sa \v{c}\^{o} p\^{o} tha  \~{n}u nao ng\u{a}
+hmua. \~{N}u dj\u{a} g\u{a}, \~{n}u dj\u{a} \v{c}\u{o}ng \~{n}u,
+laih gui r\^{e}o \~{n}u. Todang bboi r\^{o}k jolan \~{n}u nao
+hma, \~{n}u bb\^{o}h sa droi mr\u{a} d\u{o}$\,^4$ bboi gah, a, hruh
+\~{n}u.//
+\glb \\{exist} one \\{clf} person old \\{3s} go$^2$ do field
+\\{3s} hold machete \\{3s} hold hoe \\{3s} and$^3$ carry.on.back
+back.basket \\{3s} while at along trail \\{3s} go field \\{3s}
+see one \\{clf} peacock stay at \\{drct} -- nest \\{3s}//
+\endgl
+1.\enspace {\it hom\^{a}o} also means `have', reflecting the
+strong tendency across languages to use the same word for
+possession and the existential. {\it hom\^{a}o} is clause-initial
+in existential clauses, but it comes after the subject in
+possession clauses.
+
+2.\enspace All verbs are glossed with a bare form, as Jarai has
+no inflectional morphology. Although Jarai has lexical items that
+encode tense, they are relatively infrequent in text.
+
+3.\enspace The word {\it laih} is literally `after; finish', but
+that is clearly not the meaning here. Probably {\it laih} here is
+an abbreviation for {\it laih an\u{u}n}, `after that; and', hence
+the gloss `and'.
+
+4.\enspace {\it d\u{o}} `sit, stay' is used like a copula in
+locative clauses, which is what I assume here (`a~peacock [which
+was] beside its nest'); however, this could just as well mean `a
+peacock sitting beside its nest', retaining the posture
+semantics.
+\endpanel
+\bigskip
+`There was an old person who went to work in the field. He took
+along his machete, he took along his hoe, and he carried his
+basket on his back. While he was on his way to the farm, he saw a
+peacock beside its nest.'
+\xe
+|endcodedisplay
+Note that the free translation here comes after |\endpanel| and is
+typeset the way any material inside an |\ex| construction is
+typeset.  This allows it to have full width, spanning both the
+gloss and notes.  It could have been part of the gloss, with a
+different result.
+
+No support is given to side note numbering.  It must be done ``by
+hand''.  If the construction turns out to be sufficiently useful
+and hand numbering is sufficiently tedious, a more automatic
+scheme might be possible.  It would not be trivial, because the
+order in which the notes appear inside the gloss before it is
+typeset is not necessarily the same as the order in which they
+appear after it is typeset.
+
+\subsection Cascading hanging indentation in glosses
+
+\raggedbottom
+\lingset{glhangindent=.25in,everygl=\openup.5ex,
+   everyglword=\normalbaselines,everyglft=\normalbaselines,
+   abovemoreglskip=1ex}
+
+\lingset{glhangstyle=none}
+\framedisplay
+\ex[glhangstyle=cascade]
+\let\\=\textsc
+\begingl
+\gla
+Hom\^{a}o sa \v{c}\^{o} p\^{o} tha  \~{n}u nao ng\u{a} hmua. \~{N}u
+dj\u{a} g\u{a}, \~{n}u dj\u{a} \v{c}\u{o}ng \~{n}u, laih gui r\^{e}o
+\~{n}u. Todang bboi r\^{o}k jolan \~{n}u nao hma, \~{n}u bb\^{o}h sa
+droi mr\u{a} d\u{o} bboi gah, a, hruh \~{n}u.//
+\glb
+\\{exist} one \\{clf} person old \\{3s} go do field \\{3s} hold
+machete \\{3s} hold hoe \\{3s} and carry.on.back back.basket \\{3s}
+while at along trail \\{3s} go field \\{3s} see one \\{clf} peacock
+stay at \\{drct} -- nest \\{3s}//
+\glft
+`There was an old person who went to work in the field. He took
+along his machete, he took along his hoe, and he carried his
+basket on his back. While he was on his way to the farm, he saw a
+peacock beside its nest.'//
+\endgl
+\xe
+\endframedisplay
+
+is achieved by
+\codedisplay~
+\ex[glhangstyle=cascade]
+\let\\=\textsc
+\begingl
+\gla
+Hom\^{a}o sa \v{c}\^{o} p\^{o} tha  \~{n}u nao ng\u{a} hmua. \~{N}u
+dj\u{a} g\u{a}, \~{n}u dj\u{a} \v{c}\u{o}ng \~{n}u, laih gui r\^{e}o
+\~{n}u. Todang bboi r\^{o}k jolan \~{n}u nao hma, \~{n}u bb\^{o}h sa
+droi mr\u{a} d\u{o} bboi gah, a, hruh \~{n}u.//
+\glb
+\\{exist} one \\{clf} person old \\{3s} go do field \\{3s} hold
+machete \\{3s} hold hoe \\{3s} and carry.on.back back.basket \\{3s}
+while at along trail \\{3s} go field \\{3s} see one \\{clf} peacock
+stay at \\{drct} -- nest \\{3s}//
+\glft
+`There was an old person who went to work in the field. He took
+along his machete, he took along his hoe, and he carried his
+basket on his back. While he was on his way to the farm, he saw a
+peacock beside its nest.'//
+\endgl
+\xe
+|endcodedisplay
+
+\subsection  Gloss underfixes
+
+\begininventory
+\macros* \idx{|\gluf|}\endmc
+\parameters
+\idx{|glufcloseup|}& dimension& \textdim{.4 ex}\cr
+\idx{|everygluf|}& token list& |{}|\cr
+\endinventory
+
+\noindent Sometimes, gloss displays like the following are
+desired, with grammatical markings written below the gloss.
+
+\framedisplay
+\ex[glhangstyle=normal,glufcloseup=.4ex,everygluf=\footnotesize]
+\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 \gluf/the/ACC/ Hans not annoy would
+   \gluf/his/DAT/ \gluf/girlfriend/DAT/ \gluf/her/ACC/
+   \gluf/heart/ACC/ {out to throw}//
+\glft `Mary is sure that to reveal her heart to his girlfriend
+would not damage John.'//
+\endgl
+\xe
+\endframedisplay
+
+\ExPex\ provides the macro |\gluf| which can be used to
+construct such a display.
+
+\codedisplay
+\ex[glhangstyle=normal,glufcloseup=.4ex,everygluf=\footnotesize]
+\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 \gluf/the/ACC/ Hans not annoy would
+   \gluf/his/DAT/ \gluf/girlfriend/DAT/ \gluf/her/ACC/
+   \gluf/heart/ACC/ {out to throw}//
+\glft `Mary is sure that to reveal her heart to his girlfriend
+would not damage John.'//
+\endgl
+\xe
+|endcodedisplay
+
+The grammatical markings are essentially ``underfixes'' (rather than
+prefixes or suffixes), hence the name ``gluf'' (gl underfix). When the
+underfix is typeset, the value of |everygluf| is first inserted.  It
+is provided so that the user has control of the font used to typeset
+the underfixes. The value of |glufcloseup| determines how much the
+baselineskip between the underfix and the underfixed word is closed
+up.  Without some closeup, the underfixes are not positioned close
+enough to the glosses they modify (in my opinion). The macro |\gluf|
+centers the underfix below the word it annotates.  Its syntax should
+be clear from the example above.
+
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/11_Refs.tex b/Master/texmf-dist/doc/generic/expex/source/11_Refs.tex
new file mode 100644
index 00000000000..03d2aeecfac
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/11_Refs.tex
@@ -0,0 +1,521 @@
+
+
+\ifnum\secno < 1 \secno=11 \excnt=34 \fi
+
+\section Referring to examples and labeled parts of examples
+
+\nobreak\vskip-2ex
+\subsection*Unnamed reference
+
+\deftagsec{unnamedref}
+\begininventory
+\macros \idx{|\lastx|}, \idx{|\nextx|}, \idx{|\blastx|},
+\idx{|\anextx|}, \idx{|\bblastx|}\endmc
+\endinventory
+
+\noindent If $x$ is the value of |\excnt|, these macros produce
+$x-1$, $x$, $x-2$, $x+1$, $x-3$, respectively, expressed as an
+either an arabic or roman numeral, depending on the setting of
+|exnotype|.  The example number counter is incremented early in
+the expansion of |\ex|
+and |\pex|, so if one of these macros is used inside an example,
+``last example'' has the meaning ``current example number''.
+Although |\excnt| is incremented early, it is incremented after
+local parameters are set.  Consequently, if
+any of these macros is used in setting parameters in the optional
+argument of |\ex| or |\pex|, it acts as if it were being
+evaluated just before |\ex| or |\pex|.
+
+It is potentially dangerous to use macros like |\bblastx| or
+|\anextx| for reference to an example because later additions or
+deletions in the document can throw off the reference.  This kind
+of misreference is particularly easy to overlook in proofing a
+document. It is better to assign names to the things you want to
+refer to and to refer to them by name, particularly in a document
+that will undergo a lot of rewriting.  If reference by name is
+used and an intervening example is deleted or added, no problem
+arises.  If the example which is referred to is deleted, then
+\Tex\ will report a missing reference.
+
+\subsection Named reference
+
+\deftagsec{named-reference}
+\begininventory
+\macros \idx{|\deftag|}, \idx{|\deftagex|}, \idx{|\deftaglabel|},
+   \idx{|\deftagpage|}, \idx{|\getref|},
+   \idx{|\getfullref|}\endmc
+\parameters*
+\idx{|tag|}& character string& \hfil (none)\cr
+\endinventory
+
+\noindent The core macros are \idx{|\deftag|} and
+\idx{|\getref|}. |\deftag| takes two (obligatory) arguments.
+After |\deftag{«reference»}{«tag»}| is executed, |\getref{«tag»}|
+expands to {\sl reference}, where the value of the reference is
+determined at the point the |\deftag| command was evaluated.
+\idx{|\deftagex|}|{«tag»}| expands to
+|\deftag{\the\exno}{«tag»}|. \idx{|\deftagpage|}|{«tag»}| expands
+to |\deftag{\the\pageno}{«tag»}|, but the expansion is delayed
+until after \Tex's page breaking mechanism has decided what page
+the |\deftag| command appears on.  The tag/page pair which is
+generated in this case is written to a file only, so |\getref|
+cannot recover a page number until a tag-ref file is read.
+
+The evaluation of \idx{|\deftaglabel|}|{«tag»}| is more complex.
+|\pexcnt|, the setting of |labeltype|, and the setting of
+|everylabel| are used to construct the reference (either a letter
+or a number).  The tag which is submitted to |\deftag| is $\sl
+tag'\!|.|tag$, where $\sl tag'$ is the example number tag.
+
+The code below produces (\nextx).
+
+\codedisplay
+\pex[interpartskip=0pt]
+\a First\deftag{the first part of example \lastx}{FP}
+\a Second\deftagex{snoopy}\deftaglabel{dog}
+\a Third\deftaglabel{a}
+\xe|endcodedisplay
+
+\framedisplay~
+\pex[interpartskip=0pt]
+\a First\deftag{the first part of example \lastx}{FP}
+\a Second\deftagex{snoopy}\deftaglabel{dog}
+\a Third\deftaglabel{a}
+\xe
+\endframedisplay
+
+\noindent Afterwards, assuming that the tag |snoopy| has not been
+redefined in the interim\par\nobreak\medskip
+
+\hskip3em
+\vtop{\openup1pt
+\halign{#\hfil& \quad$\to$\quad #\hfil\cr
+|\getref{snoopy}|& \getref{snoopy}\cr
+|\getref{snoopy.dog}|& \getref{snoopy.dog}\cr
+|\getfullref{snoopy.dog}|& \getfullref{snoopy.dog}\cr
+|\getref{snoopy.a}|& \getref{snoopy.a}\cr
+|\getfullref{snoopy.a}|& \getfullref{snoopy.a}\cr
+|\getref{dog}|& \it undefined tag warning, or spurious reference\cr
+|\getref{FP}|& \getref{FP}\cr
+}}
+
+\medskip
+\noindent |\getref{dog}| will produce a spurious reference if the
+tag |dog| is defined somewhere else in your document.
+|\deftaglabel| must know, at the point that it is expanded, what
+tag has been attached to the example number. If the example
+number has not been tagged at that point, a warning message is
+issued.
+
+There are two alternatives to the explicit use of |\deftagex| and
+|\deftaglabel|.  One is the use of the parameter |tag|. After
+
+\codedisplay
+\pex[interpartskip=0pt,labeltype=alpha,tag=snoopy]
+\a First
+\a[tag=dog] Second
+\a Third\deftaglabel{A}
+\xe |endcodedisplay
+
+\noindent |\getref{snoopy}|, |\getref{snoopy.dog}|,
+and |\getref{snoopy.A}| are interpreted as expected, as are
+|\getfullref{snoopy.dog}| and
+|\getfullref{snoopy.A}|.
+
+The other alternative is a special ``tagging notation'' which,
+unlike most shortcuts, makes the code easier to read as well.
+After
+
+\codedisplay
+\pex[interpartskip=0pt,labeltype=alpha]<snoopy>
+\a First
+\a<dog> Second
+\a[tag=A] Third
+\xe |endcodedisplay
+
+\noindent |\getref{snoopy}|, |\getref{snoopy.dog}|, and
+|\getref{snoopy.A}| are interpreted as expected, as are
+|\getfullref{snoopy.dog}| and |\getfullref{snoopy.A}|.
+
+If |\getref{sometag}| is evaluated and the tag is undefined, a
+warning message to this effect is generated
+and~\hbox{$\bullet$|sometag|} is typeset instead of the intended
+reference.
+
+\subsection Proofing references
+
+\begininventory
+\macros* |\refproofing|\endmc
+\endinventory
+It is tedious to check that references to example numbers and the
+like are correct (i.e. refer to what you think they refer to).
+\ExPex\ provides a little help. If you execute
+\idx{|\refproofing|}, then all the references that are generated
+by |\bblastx|, |\blastx|, |\lastx|, |\nextx|, |\anextx|,
+|\getref|, and |\getfullref| are highlighted.  If \PSTricks\ is
+loaded at the point that |\refproofing| is evaluated, the
+highlighting consists of a box around the reference.  If not, the
+reference is under- and overlined. Highlighting is helpful
+in copy editing.  The difference is illustrated below.
+
+\pex
+\a Consider (\getfullref{snoopy.dog}), for
+example.\qquad default behavior
+\refproofing
+\a Consider (\getfullref{snoopy.dog}), for example.\qquad
+|\refproofing|, \PSTricks\ available
+\a {\let\PSTricksLoaded\relax \refproofing
+\makeatletter
+\let\@highlightprint\mathhigh@lightref
+\resetatcatcode
+Consider (\getfullref{snoopy.dog}), for example.}\qquad
+|\refproofing|, \PSTricks\ not available
+\xe
+
+
+
+\subsection The tag/reference file
+
+\begininventory
+\macros \idx{|\gathertags|}, \idx{|\tagfilesuffix|}\endmc
+\endinventory
+
+\noindent Forward references require writing tag/reference
+associations to a file in one run, then reading this file in a
+second run. Forward reference is only one reason for such a
+system.  If you work on a document in pieces, say one section at
+a time, and need to refer to things in prior sections, then the
+tag/reference pairs from previous sections must be stored in a
+file so that they can be used in the section that you are working
+on. If you say \idx{|\gathertags|}, the tag/reference pairs will
+be written to a file as they are established.  If your main file
+is named {\sl foop.tex}, for example, the default is to write the
+tag/ref pairs to {\sl foop-tags.tex}.  But you can modify this by
+using the command \idx{|\tagfilesuffix|}.  \slname{expex.tex}
+contains |\tagfilesuffix{-tags}|, but you can overrule this with
+|\tagfilesuffix{«your suffix»}|.
+
+When the first |\getref|, |\getfullref|, or |\gathertags| command
+is encountered, \ExPex\ checks to see if there is a tag file.  If
+the file does exist, it is read and all the tag/reference pairs
+it encodes are established.  No testing is done for conflicting
+tag/reference pairs with the same tag, so it is the
+responsibility of the user to see that this does not occur to a
+bad effect.  If the user wants to be absolutely sure that bad
+references have not accidentally occurred because of using the
+same tag twice, he/she can look directly at the tag file in a
+text editor.  If the lines are alphabetized, it is relatively
+easy to find tags for which multiple references have been
+established.  If you are a careful copy editor, this may be worth
+doing in a complex project (a book length manuscript) during
+final copy editing.  Of course, the printed final manuscript
+should be checked in any event to make sure that the references
+refer to what you want them to refer to.
+
+For what it is worth, my own style of work is to break up
+projects into multiple pieces and have a main file which calls
+the various pieces.  Then I simply comment out the calls to
+pieces that I am not working on.  From time to time I will run
+the main file calling on all the various pieces, invoking
+|\gathertags|. Then I comment out |\gathertags|.  The tag-ref
+file which is created then remains intact until |\gathertags| is
+invoked at some future time.  All of the tag/reference pairs it
+encodes are available in subsequent work until a new tags file is
+created.
+
+\subsection References to references, references as values
+
+\begininventory
+\macros* \idx{|\lastlabel|}\endmc
+\endinventory
+%
+If, for some reason, you want to refer to a specific
+part of a multipart example without tagging the example number,
+it can be done as follows, assuming that the part labels are
+alphabetical.
+
+\codedisplay
+\pex[everylabel=\it]
+\a First Example.
+\a Second Example.\deftag{\lastx\lastlabel}{snoopy}
+\a Third Example.
+\xe
+|endcodedisplay
+\framedisplay
+\pex[everylabel=\it]
+\a First Example.
+\a Second Example.\deftag{\lastx\lastlabel}{snoopy}
+\a Third Example.
+\xe
+\endframedisplay
+
+\noindent You can then use |\getref{snoopy}| to retrieve
+\getref{snoopy}. |\lastlabel| expands to the most recent label,
+in the form in which it is printed (i.e. containing the expansion
+of |\everylabel|). If the part labels are numerical, then
+|\deftag{\lastx.\lastlabel}| is required.
+
+You can also say:
+
+\sidx{|exno|, setting by reference}%
+\codedisplay
+\ex[exno=\getref{snoopy}] Second example.\xe|endcodedisplay
+
+\framedisplay~
+\ex[exno=\getref{snoopy}] Second example.\xe
+\endframedisplay
+\medskip
+
+Or you can say:
+
+\codedisplay
+\ex[exno={\getref{snoopy}, repeated},exnoformat={[X]}]
+Second example.\xe
+|endcodedisplay
+
+\framedisplay~
+\ex[exno={\getref{snoopy}, repeated},exnoformat={[X]}]
+Second example.\xe
+\endframedisplay
+%
+Braces must hide the comma in the value which sets the key.
+
+If you say
+
+\codedisplay
+\pex[labeltype=numeric]<dog>
+\a First Example.
+\a<G> Second Example.
+\a Third Example.
+\xe|endcodedisplay
+
+\framedisplay~
+\pex[labeltype=numeric]<dog>
+\a First Example.
+\a<G> Second Example.
+\a Third Example.
+\xe
+\endframedisplay
+
+\noindent then, if you want to repeat (\getfullref{dog.G}) at
+some point, you can use:
+
+\codedisplay
+\ex[exno=\getfullref{dog.G}] Second example\xe
+|endcodedisplay
+
+\framedisplay~
+\ex[exno={\getfullref{dog.G}}] Second example\xe
+\endframedisplay
+
+\subsection Extensions of the tag/reference mechanism
+
+The tag/reference mechanism can easily be extended to reference
+to chapters, sections, and subsections.  Suppose, for example,
+that there are counters for the chapter number, section number,
+subsection number, and subsubsection number.  One might define:
+
+\codedisplay
+\def\currsec{\the\chapterno
+   \ifnum\secno>0 .\the\secno
+   \ifnum\subsecno>0 .\the\subsecno
+   \ifnum\subsubsecno>0 .\the\subsubsecno \fi\fi\fi}
+\def\deftagsec#1{\deftag\currsec{#1}}|endcodedisplay
+
+\noindent This assumes that there are counters |\chapterno|,
+|\secno|, |\subsecno|, and |\subsecsecno| and that when a chapter
+is initiated, |\secno| is set to 0, when a section is initiated,
+|\secsecno| is set to 0, and that when a subsection is initiated,
+|\subsubsecno| is set to 0.  (Lines 1--5, commented out,
+are included at the end of {\sl expex.tex\/} for the user to
+use, modify, or ignore.)
+
+
+\subsection The parameter {\tt fullreformat}
+
+\begininventory
+\parameters*
+\idx{|fullrefformat|}& $\ldots\,|X|\,\ldots\,|A|\,\ldots$ & |XA|\cr
+\endinventory
+
+\begingroup
+\parindent=0pt \leftskip=1.2em
+
+1. |labelformat| (see page \getref{labelformatpage}) determines how the labels are formatted.
+Generally they are followed by a period, but this parameter
+allows other possibilities.
+\smallskip
+
+2. |fullrefformat| determines how references retrieved by
+|\getfullref| are formatted.  Generally, example numbers and
+labels are concatenated if the labels are characters and
+separated by a period if the labels are numbers.  This parameter
+allows other possibilities.  The format specification is
+primitive.  The value of |fullrefformat| is analyzed as
+|#1X#2A#3|, with |X| preceding |A|.  Then the full reference is
+found by substituting the example number for |X| and the part
+label for |A|.
+\smallskip
+\endgroup
+
+Consider the artificial example below, with unusual formatting
+for illustrative purposes.
+
+\begingroup
+\setss .65 .35
+\beginss
+\pex[labeltype=numeric,labelformat={[A]},
+   fullrefformat=X-A,samplelabel={[1]}]<K>
+\a first
+\a<A> second
+\xe|midss
+\pex[labeltype=numeric,labelformat={[A]},
+   fullrefformat=X-A,samplelabel={[1]}]<K>
+\a first
+\a<A> second
+\xe
+\endss
+\endgroup
+|\getref{K.A}| produces \getref{K.A} and |\getfullref{K.A}|
+produces \getfullref{K.A}.
+
+\subsection Reference to a part of a multipart example
+
+Suppose there is a multipart example which you want to partially
+repeat at a later point, giving only some of the parts. There are
+many opportunities to make a mistake.  The reference to the
+example number may be wrong, the references to the part labels my
+be wrong, or a particular part may not be repeated the way it
+originally appeared.  Here is one way to (partially) automate the
+references to avoid most of the possible reference
+errors.
+
+\begingroup
+\setss .53 .43
+\beginss
+\deftag{Someone loves everyone.}{1st}
+\deftag{Everyone loves someone.}{2nd}
+
+\pex<A>
+\a   \dots
+\a<X> \getref{1st}
+\a  \dots
+\a<Z> \getref{2nd}
+\xe
+
+\ex An intervening example.\xe
+
+The two crucial examples in
+(\getref{A}) are repeated below:
+
+\pex[exno=\getref{A}]
+\a[label=\getref{A.X}]  \getref{1st}
+\a[label=\getref{A.Z}]  \getref{2nd}
+\xe
+
+\ex Numbering resumes.\xe|midss
+\deftag{Someone loves everyone.}{1st}
+\deftag{Everyone loves someone.}{2nd}
+
+\pex<A>
+\a   \dots
+\a<X> \getref{1st}
+\a  \dots
+\a<Z> \getref{2nd}
+\xe
+
+\bigskip
+\ex An intervening example.\xe
+
+\bigskip
+The two crucial examples in
+(\getref{A}) are repeated below:
+
+\bigskip
+\deftag{\the\secno.\the\subsecno}{explicit-sec}%
+\pex[exno=\getref{A}]
+\a[label=\getref{A.X}]  \getref{1st}
+\a[label=\getref{A.Z}]  \getref{2nd}
+\xe
+
+\bigskip
+\ex Numbering resumes.\xe
+\endss
+%
+{\bf Important limitation}:\enspace Inside an example that sets
+|exno| to a nonempty value, the use of |\deftaglabel| or
+|\deftagex|, or their implicit versions using the |<|\dots|>|
+notation, or |\label|, will result in an error or (more
+dangerously) an unexpected outcome.  This is a minor limitation
+because there should be no need to tag items which themselves are
+referenced by tags.  It is important only because violating it
+can generate Tex errors.\endgroup
+
+\subsection Support for the LaTex \ttcs{label} and
+\ttcs{ref} commands%
+
+\deftag{\the\secno.\the\subsecno}{labelsec}
+
+\sidx{|\label|, use of the LaTex macro}
+\sidx{|\ref|, use of the LaTex macro}
+\noindent LaTex users, if so inclined, may wish to use the LaTex
+|\label|-|\ref| mechanism to tag example numbers and example part
+labels.
+
+Assuming that LaTex is in use,
+
+\beginss
+\pex \label{A}
+\a Tom\label{B}
+\a Dick\label{C}
+\a Harry\label{D}, etc.
+\xe
+
+\ex~ Intervening example.\xe
+
+\noindent Consider example (\ref{A}).
+Tom is in example (\ref{B}), Dick is
+in example (\ref{C}), and Harry is in
+example (\ref{D}).|midss
+%%%%
+\pex[aboveexskip=1ex,nopreamble]\deftagex{A}
+\a Tom\deftaglabel{B}
+\a Dick\deftaglabel{C}
+\a Harry\deftaglabel{D}, etc.
+\xe
+
+\bigskip
+\ex~ Intervening example\xe
+
+\bigskip
+\noindent Consider example (\getref{A}). Tom is in example
+(\getfullref{A.B}), Dick is in example (\getfullref{A.C}), and
+Harry is in example (\getfullref{A.D}).
+\medskip
+%%%%
+\endss
+
+There are important differences between the LaTex mechanism and
+the |\deftag|-|\getref| mechanism.
+
+\smallskip
+\noindent 1.\enspace
+|\ref{|{\it tag}|}| cannot be used as a special example number,
+nor can it be given as an optional argument to |\a|.
+
+\smallskip
+\noindent 2.\enspace
+The |\label| name space is flat.  No distinction is made between
+names of examples and names of parts of examples. This makes it
+much harder to remember and manage the names, at least for me.
+
+\smallskip
+\noindent 3.\enspace
+LaTex provides no control over the generation of the file
+containing the tag-reference pairs.  One cannot work on Chapter 5
+(for example) and have all the tag-reference information for the
+earlier chapters available without actually submitting all of the
+Chapters 1 to 4 to LaTex while you are working on Chapter 5.
+
+
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/12_Tables.tex b/Master/texmf-dist/doc/generic/expex/source/12_Tables.tex
new file mode 100644
index 00000000000..7aa389e5bca
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/12_Tables.tex
@@ -0,0 +1,446 @@
+
+\section Tables in examples
+
+\begininventory
+\macros* \idx{|\hwit|}\endmc
+\endinventory
+Most of the difficulty of formatting example displays which
+contain tables comes from formatting the table itself. This
+manual will not teach the reader how to use \Tex\ to format
+tables. It will be assumed that the reader knows how to use the
+\Tex\ primitive |\halign| or the \LaTex\ macros based on
+|\halign|.  But this section might contribute something to
+understanding how to use the table making tools in linguistics
+examples.
+
+Many tabular examples have the form
+
+\def\goop{\enspace\dots\enspace}
+\codedisplay
+\ex \vtop{\halign{|goop}}\xe
+|endcodedisplay
+
+For example:
+
+\framedisplay
+\ex
+\vtop{\halign{#\hfil&& \qquad #\hfil\cr
+baudh& bu-baudh& know, wake\cr
+smai& si-smai& smile\cr
+suap& su-suap& sleep\cr
+miaks& mi-miaks& glitter\cr
+auc& u-auc& please\cr
+}}
+\xe
+\endframedisplay
+
+\codedisplay
+\ex \vtop{\halign{%
+#\hfil&& \qquad #\hfil\cr
+baudh& bu-baudh& know, wake\cr
+smai& si-smai& smile\cr
+suap& su-suap& sleep\cr
+miaks& mi-miaks& glitter\cr
+auc& u-auc& please\cr
+}}\xe|endcodedisplay
+
+A more elaborate version of (\lastx), with a title and labeled
+columns, is given below. |\hwit| is described below.
+
+\framedisplay
+\ex  The perfect stems of some roots with a
+high vowel in their nucleus\par\nobreak\medskip
+\quad\vbox{\halign{%
+#\hfil&& \hskip3em #\hfil\cr
+\hfil\hwit{root}& \hfil\hwit{perfect stem}&
+   \hfil\hwit{gloss}\cr
+\noalign{\smallskip}
+baudh& bu-baudh& `know, wake'\cr
+smai& si-smai& `smile'\cr
+suap& su-suap& `sleep'\cr
+miaks& mi-miaks& `glitter'\cr
+auc& u-auc& `please'\cr
+}}\xe
+\endframedisplay
+
+\codedisplay~
+\ex  The perfect stems of some roots with a
+high vowel in their nucleus\par\nobreak\medskip
+\quad\vbox{\halign{%
+#\hfil&& \hskip3em #\hfil\cr
+\hfil\hwit{root}& \hfil\hwit{perfect stem}&
+   \hfil\hwit{gloss}\cr
+\noalign{\smallskip}
+baudh& bu-baudh& `know, wake'\cr
+smai& si-smai& `smile'\cr
+suap& su-suap& `sleep'\cr
+miaks& mi-miaks& `glitter'\cr
+auc& u-auc& `please'\cr
+}}\xe |endcodedisplay
+%
+|\hwit| (hidewidth italics) inserts the italicized
+label into the alignment in such a way that it is centered over
+the nonwhite portion of the column it heads.  It hangs over
+equally on both sides if necessary. Hiding the width of column
+labels is often important so that the column labels do not affect
+the column widths.
+
+|\par\nobreak| appears after the title so that page breaking does
+not detach the title from the table that follows.
+
+\subsection Tables with labeled lines
+
+\begininventory
+\macros \idx{|\labels[]|}, \idx{|\tl|}, \idx{|\nl|}\endmc
+\endinventory
+If reference must be made to particular lines in (\lastx), the
+lines need labels of some sort.  One approach is to explicitly
+enter the line labels a--e:
+
+\framedisplay
+\ex  The perfect stems of some roots with a
+high vowel in their nucleus\par\nobreak\medskip
+\quad\vbox{\halign{%
+#\hfil& \quad #\hfil&& \hskip3em #\hfil\cr
+& \hfil\hwit{root}& \hfil\hwit{perfect stem}&
+   \hfil\hwit{gloss}\cr
+\noalign{\smallskip}
+a.& baudh& bu-baudh& `know, wake\cr
+b.& smai& si-smai& `smile'\cr
+c.& suap& su-suap& `sleep'\cr
+d.& miaks& mi-miaks& `glitter'\cr
+e.& auc& u-auc& `please'\cr
+}}\xe
+\endframedisplay
+
+\codedisplay
+\ex  The perfect stems of some roots with a
+high vowel in their nucleus\par\nobreak\medskip
+\quad\vbox{\halign{%
+#\hfil& \quad #\hfil&& \hskip3em #\hfil\cr
+& \hfil\hwit{root}& \hfil\hwit{perfect stem}&
+   \hfil\hwit{gloss}\cr
+\noalign{\smallskip}
+a.& baudh& bu-baudh& `know, wake'\cr
+b.& smai& si-smai& `smile'\cr
+c.& suap& su-suap& `sleep'\cr
+d.& miaks& mi-miaks& `glitter'\cr
+e.& auc& u-auc& `please'\cr
+}}\xe |endcodedisplay
+
+\noindent If a line is deleted or added, or if lines are
+interchanged for some reason, considerable relabeling may be
+required.
+
+\ExPex\  provides some macros which simplify this code and make
+it easier to manipulate.  They are used in the alternate code for
+(\lastx) below and described below. |\labels| initializes
+the counter |\pexcnt|, which is then used to generate the labels.
+It also activates the macros |\tl| (table label) and
+|\nl| (no label). |\tl| inserts the appropriate label, with
+following period, and increments the counter. |\nl| abbreviates
+|\omit\hfil|, so that it can be used to prevent the appearance of
+a label in a cell. |\labels| takes parameters, so you can say
+things like |\labels[labeltype=caps,everylabel=\it]|.  Of course,
+these parameters can also be set at the |\ex| level, if desired, or
+even globally.
+
+\codedisplay
+\ex  The perfect stems of some roots with a
+high vowel in their nucleus\par\nobreak\medskip
+\quad\vbox{\labels\halign{%
+\tl #\hfil& #\hfil& \quad #\hfil&& \hskip3em #\hfil\cr
+\nl & \hfil\hwit{root}& \hfil\hwit{perfect stem}&
+   \hfil\hwit{gloss}\cr
+\noalign{\smallskip}
+& baudh& bu-baudh& `know, wake'\cr
+& smai& si-smai& `smile'\cr
+& suap& su-suap& `sleep'\cr
+& miaks& mi-miaks& `glitter'\cr
+& auc& u-auc& `please'\cr
+}}\xe |endcodedisplay
+
+The advantages of implicit line label insertion should be
+obvious.  One often decides to insert another entry, or to delete
+an entry.  If the labels are inserted explicitly, this usually
+requires changing multiple labels.  If the table has many lines,
+this is particularly onerous.  References in the text to
+particular lines also need to changed to match the new labeling.
+We will see below that lines in tables can be named and reference
+made by name, using implicit line numbering.
+
+\subsection Tagging implicit labels in tables
+
+\sidx{|\deftaglabel|, in tables}
+|\deftaglabel| can be used to associate a tag with a label that is
+introduced into a table by |\tl|~(``table label'').  |\tl| can
+also read an optional tag using the |<|\dots|>| mechanism.
+
+\codedisplay
+\ex<Washo>
+\vtop{\labels\halign{\tl #\hfil&& \quad #\hfil\cr
+\nl & \hwit{Root}& \hwit{Plural}& \hwit{Gloss}\cr
+& baloxat& baloxaxat& bows\cr
+& moya& moyaya& shoulder\cr
+<A>& nent'us& net'unt'us& old women\cr
+<B>& mokgo& mogokgo& shoes\cr
+}}
+\xe
+Examples (\getfullref{Washo.A}) and (\getfullref{Washo.B}) are the most
+complex, and therefore the most revealing. Examples
+(\getref{Washo}\getref{Washo.A},\getref{Washo.B}) are the most complex,
+and therefore the most revealing.
+|endcodedisplay
+
+\framedisplay~[fdcorrect=top]
+\ex<Washo>
+\vtop{\labels\halign{\tl #\hfil&& \quad #\hfil\cr
+\nl & \hwit{Root}& \hwit{Plural}& \hwit{Gloss}\cr
+& baloxat& baloxaxat& bows\cr
+& moya& moyaya& shoulder\cr
+\deftaglabel{A}& nent'us& net'unt'us& old women\cr
+\deftaglabel{B}& mokgo& mogokgo& shoes\cr
+}}\xe
+Examples (\getfullref{Washo.A}) and (\getfullref{Washo.B}) are
+the most complex, and therefore the most revealing.
+Examples (\getref{Washo}\getref{Washo.A},\getref{Washo.B}) are
+the most complex, and therefore the most revealing.
+\endframedisplay
+\medskip
+\noindent
+
+\subsection Some useful table making tools
+
+\begininventory
+\macros* % \idx{|\lingdima|}, \idx{|\lingdimb|}, \idx{|\lingdimc|},
+   \idx{|\tspace|}|[]|, \idx{|\crs|}\endmc
+\parameters
+\idx{|dima|\user}& dimension& \textdim{2.4 em}\cr
+\idx{|dimb|\user}& dimension& (not set)\cr
+\idx{|dimc|\user}& dimension& (not set)\cr
+\idx{|crskip|}& skip& \textdim{1.2 ex}\cr
+\endinventory
+%
+Tables often need considerable adjustment in order to
+balance the needs of readability, space limitations, and matching
+the typographic structure to the conceptual structure.
+Sometimes this requires a delicate balancing act. \ExPex\
+provides three parameters (scratch dimensions) |dima|, |dimb|,
+and |dimc|, and corresponding macros which expand to their
+settings, which can be used for this.  Additionally,
+|\tspace[«key»]| expands to |\hskip\ling«tag»|, so that
+horizontal skip like |\tspace[dima]| or |\tspace[textoffset]| can
+be easily used in table construction.  The code for (\lastx)
+could be written:
+
+\codedisplay
+\ex[textoffset=1em,dima=1em,dimb=3em]
+The perfect stems of some roots with a high vowel in their
+nucleus\par\nobreak\medskip
+\tspace[dima]\vbox{\labels\halign{%
+\tl #\hfil& \tspace[textoffset]#\hfil&& \tspace[dimb]#\hfil\cr
+\nl & \hfil\hwit{root}& \hfil\hwit{perfect stem}&
+   \hfil\hwit{gloss}\cr |endcodedisplay
+\removelastskip\vskip-1ex
+$\vdots$
+\bigskip
+
+\noindent Localizing all the parameters which might need
+adjustment in the optional argument of |\ex| helps organize the
+adjustment process.
+
+If no optional argument is supplied to |\tspace|, it expands to
+|\hskip\lingdima|.
+
+The macro |\crs| and command key |crskip| are
+provided to assist in fine tuning the vertical spacing inside an
+alignment. |\ling@crskip| expands to the setting of |crskip|, and
+
+\exfrag |\crs|\quad $\to$\quad |\cr \noalign{\vskip\ling@crskip}|
+\xe
+
+\subsection Tables that can break between pages
+
+\begininventory
+\macros \idx{|\exdisplay[]|}, \idx{|\noexno|}, \idx{|\exnoprint|},
+   \idx{|\crnb|}\endmc
+\endinventory
+Up to this point, only tables that are typeset in a vbox have
+been considered.  The \Tex\ page breaking algorithm does not
+split a box between pages.  Sometimes, an especially tall table
+is needed and one has the choice of floating the table to the top
+of the next page (using \Tex's |\topinsert|) or constructing a
+breakable table.  The latter choice is often preferable and can
+be implemented using \Tex's primitive |\halign|.
+
+The example number must be part of the |\halign|, not inserted by
+|\ex|.  |\exdisplay| is designed to accommodate an unboxed
+|\halign|. Like |\ex|, |\exdisplay| must be closed by |\xe|.
+|\exdisplay| \dots|\xe| is just like |\ex| \dots|\xe| except that
+an example number is not printed and the horizontal dimensions
+|\numoffset| and |\textoffset| are irrelevant. |aboveexskip| and
+|belowexskip| play the same role, paragraph indentation is
+cancelled, |\lingeveryex| and |\lingEveryex| are executed, and
+|\excnt| is advanced.
+
+|\noexno| is provided in case the user wants to use |\exdisplay|
+for something other than a numbered example.  It cancels the
+automatic advancement of |\excnt|.  You can say
+|\exdisplay|\idx{|\noexno|}\ or |\exdisplay[« \dots»]\noexno| to
+cancel |\excnt| advancement.
+
+Now consider the `tall display' (\nextx).  It is sufficiently
+tall that it either must be put in an insertion or typeset so
+that it can be split by a page break.
+
+\exdisplay[labeloffset=2em,dima=2em,dimb=1em,dimc=-.8em]
+\def\\#1-{{\bf #1}-}%
+\labels
+\openup1pt
+\halign{%
+   #\tspace[labeloffset]\hfil&    % example number
+   #\tl\tspace[textoffset]\hfil&  % line label
+   #\tspace \hfil&                % root
+   #\tspace \hfil&                % perfect stem
+   `#'\hfil\cr                    % gloss
+(\the\excnt)& \omit\tspace[dimc] High vowel in the nucleus of the
+   root\hidewidth\crnb
+& \nl & \hwit{root}& \hwit{perfect stem}&
+   \omit\tspace\hwit{gloss}\crnb
+&& baudh& \\bu-baudh& know, wake\cr
+&& stau& \\tu-stau& praise\cr
+&& smai& \\si-smai& smile\cr
+\noalign{\exbreak}
+&& suap& \\su-suap& sleep\cr
+&& miaks& \\mi-miaks& glitter\cr
+&& auc& \\u-auc& please\cr
+\noalign{\exbreak\smallskip}
+& \omit\tspace[dimc] No high vowel in the nucleus of the
+   root\hidewidth\crnb
+&& suaj& \\sa-suaj& embrace\cr
+&& krand& \\ka-krand& cry out\cr
+\noalign{\exbreak}
+&& skand& \\ka-skand& leap\cr
+&& mard& \\ma-mard& rub, crush\cr
+&& mnaa& \\ma-mnaa& note\cr
+}\xe
+
+The example number in the code below is inserted by
+|\exnoprint|, which is how |\ex| inserts example numbers.
+If, by the way, you don't like the way example numbers are
+inserted (surrounded by parentheses), you can redefine
+|\exnoprint|. The code uses |\crnb|, which expands to
+|\cr\noalign{\par\nobreak}|, to prevent a page
+break between a heading and the remainder of the table which
+follows. Page breaks are encouraged by |\exbreak| at a few points
+where it is judged that the logic of the table can tolerate it.
+|\exbreak| encourages a page break at the cost of allowing a
+certain amount of white space at the bottom of the broken
+page.\footnote{See page \getref{exbreakpage} for a more complete
+discussion of |\exbreak|.  The amount of encouragement and the amount of
+whitespace are parametrized.}
+A
+negative horizontal skip |\tspace[dimc]| is used to highlight the
+subheadings (and to show the reader that it is a possibility, if
+you need it).
+
+\vbox{\codedisplay
+\exdisplay[labeloffset=2em,dima=2em,dimb=1em,dimc=-.8em]
+\def\\#1-{{\bf #1}-}%
+\labels
+\openup1pt
+\halign{%
+   #\tspace[labeloffset]\hfil&    % example number
+   #\tl\tspace[textoffset]\hfil&  % line label
+   #\tspace \hfil&                % root
+   #\tspace \hfil&                % perfect stem
+   `#'\hfil\cr                    % gloss
+(\the\excnt)& \omit\tspace[dimc] High vowel in the nucleus of the
+   root\hidewidth\crnb
+& \nl & \hwit{root}& \hwit{perfect stem}&
+   \omit\tspace\hwit{gloss}\crnb
+&& baudh& \\bu-baudh& know, wake\cr
+&& stau& \\tu-stau& praise\cr
+&& smai& \\si-smai& smile\cr
+\noalign{\exbreak}
+&& suap& \\su-suap& sleep\cr
+&& miaks& \\mi-miaks& glitter\cr
+&& auc& \\u-auc& please\cr
+\noalign{\exbreak\smallskip}
+& \omit\tspace[dimc] No high vowel in the nucleus of the
+   root\hidewidth\crnb
+&& suaj& \\sa-suaj& embrace\cr
+&& krand& \\ka-krand& cry out\cr|par|nobreak
+\noalign{\exbreak}|par|nobreak
+&& skand& \\ka-skand& leap\cr|par|nobreak
+&& mard& \\ma-mard& rub, crush\cr|par|nobreak
+&& mnaa& \\ma-mnaa& note\cr|par|nobreak
+}\xe |endcodedisplay
+\vskip-2ex}
+
+\subsection Squeezing tables into tight places
+
+Foregoing |\ex| and directly using |\halign| inside |\exdisplay|
+\dots|\xe| has other uses besides constructing tables in numbered
+examples which can be broken between pages.  The technique is
+also sometimes useful in fitting a table in a numbered example
+into a narrow page width. The table below was constructed to fit
+on a page of width $4.3\,\rm in$, with no room to spare. It gives
+the present indicative conjunction of the Sanskrit verb root {\sl
+dve\.s\kern.6pt/dvi\.s\/} `hate'.
+
+\framedisplay
+\hsize=4.3in
+\exdisplay[dima=.5em,dimb=.4em,textoffset=.5em]
+\def\\#1{$\acute{\hbox{\=#1}}$}%
+\tabskip=0pt
+\openup.4ex
+\halign to \hsize{\tspace[dima]#\tspace[textoffset]\hfil&
+   #\hfil\tabskip=0pt plus 1fil&
+   #\hfil& #\hfil& \tspace[dimb]#\hfil&
+   #\hfil &  #\hfil\tabskip=0pt\cr
+\omit\exnoprint\hidewidth&
+   \multispan6 \hwit{Present Indicative}\crnb
+&\multispan3 \hwit{active}& \multispan3 \hwit{middle}\cr
+& \hwit{sg}& \hwit{du}& \hwit{pl}&
+   \hwit{sg}& \hwit{du}& \hwit{pl}\cr
+\it 1& {\bf dv\'e\.s}-mi& dvi\.s-v\'as& dvi\.s-m\'as&
+   dvi\.s-\'e& dvi\.s-v\'ahe& dvi\.s-m\'ahe\cr
+\it 2& {\bf dv\'ek}-\.si& dvi\.s-\.th\'as& dvi\.s-\.th\'a&
+   dvik\.s-\'e& dvi\.s-\\athe& dvi\.d-\.dhv\'e\cr
+\it 3& {\bf dv\'e\.s}-\.ti& dvi\.s-\.t\'as& dvi\.s-\'anti&
+   dvi\.s-\.t\'e& dvi\.s-\\ate& dvi\.s-\'ate\cr
+}
+\xe
+\endframedisplay
+
+Assuming that the page width has been set to $4.3\,\rm in$
+(|\hsize=4.3in|), the following code produces (\lastx), which is
+precisely $4.3\,\rm in$ wide.
+
+\codedisplay
+\exdisplay[dima=.5em,dimb=.4em,textoffset=.5em]
+\def\\#1{$\acute{\hbox{\=#1}}$}%
+\tabskip=0pt
+\openup.4ex
+\halign to \hsize{\tspace[dima]#\tspace[textoffset]\hfil&
+   #\hfil\tabskip=0pt plus 1fil&
+   #\hfil& #\hfil& \tspace[dimb]#\hfil&
+   #\hfil &  #\hfil\tabskip=0pt\cr
+\omit\exnoprint\hidewidth&
+   \multispan6 \hwit{Present Indicative}\crnb
+&\multispan3 \hwit{active}& \multispan3 \hwit{middle}\cr
+& \hwit{sg}& \hwit{du}& \hwit{pl}&
+   \hwit{sg}& \hwit{du}& \hwit{pl}\cr
+\it 1& {\bf dv\'e\.s}-mi& dvi\.s-v\'as& dvi\.s-m\'as&
+   dvi\.s-\'e& dvi\.s-v\'ahe& dvi\.s-m\'ahe\cr
+\it 2& {\bf dv\'ek}-\.si& dvi\.s-\.th\'as& dvi\.s-\.th\'a&
+   dvik\.s-\'e& dvi\.s-\\athe& dvi\.d-\.dhv\'e\cr
+\it 3& {\bf dv\'e\.s}-\.ti& dvi\.s-\.t\'as& dvi\.s-\'anti&
+   dvi\.s-\.t\'e& dvi\.s-\\ate& dvi\.s-\'ate\cr
+}
+\xe
+|endcodedisplay
+
+
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/13_PSTricks.tex b/Master/texmf-dist/doc/generic/expex/source/13_PSTricks.tex
new file mode 100644
index 00000000000..3562e9f5cf0
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/13_PSTricks.tex
@@ -0,0 +1,94 @@
+
+\everymath={}%
+
+\section ExPex and PSTricks
+
+\begininventory
+\macros* \idx{|\Lingset|}\endmc
+\endinventory
+Several features of \ExPex\relax, listed in (\nextx), come into
+play only if {\sl pstricks.tex\/} has been loaded at the point
+that {\sl expex.tex\/} is loaded.  They are intended to make it
+easier to use {\sl PSTricks\/} in examples.
+
+\pex[labeltype=numeric]
+\a |\Lingset| is activated.  It works like |\lingset|, but if
+there are parameters which are not in the family {\sl ling}, they are
+passed to |\psset|.
+\a The family {\sl ling\/} is added to the set of parameter families
+which |\psset| can set.
+\a The optional argument of |\ex|, |\pex|, and |\exdisplay| is
+passed to |\Lingset|.
+\xe
+
+\noindent |\Lingset| first scans its argument from left to right
+and sets all the parameters from the family {\sl ling}.  The
+remaining keys are then passed to |\psset|.  If {\sl PSTricks\/}
+has not been loaded, |\Lingset| is defined, but its meaning is
+the meaning of |\lingset|.
+
+This is illustrated by (\nextx).
+
+\medskip
+\framedisplay%[exclude]
+\ex[angle=-90,nodesep=0pt,arrows=->,labelsep=.25ex,linearc=.7ex,
+   dima=.2em]
+\def\\#1(#2){\rnode{#2}{\strut #1}}%
+%
+\vrule height0pt depth5.3ex width0pt
+\\Whom(A) did John persuade \\t(B) [ PRO to visit \\whom(C) ]
+\ncbar[armA=3.5ex,offsetB=\lingdima]{B}{A}
+\bput{0}{$M_{sp}=2$}
+\ncbar[armA=4.5ex,offsetB=-\lingdima]{C}{A}
+\bput{0}(1.2){$M_{sp}=6$}
+\xe
+\endframedisplay
+
+\noindent (The example is from Juan Uriagereka, in {\sl The Role
+of Economy Principles in Linguistic Theory}.)
+
+In the code below, note that the optional argument of |\ex| is
+used to set the \PSTricks\ parameters |angle|, |arrows|,
+|nodesep|, |labelsep|, and |linearc|, and the \ExPex\ parameter
+|dima|.  Note also that the \ExPex\ scratch dimension
+|\lingdima| is used seamlessly by the {\sl PST-Node\/} macros.
+
+\CLnum
+\ex[angle=-90,nodesep=0pt,arrows=->,dima=.2em, labelsep=.25ex,
+   linearc=.7ex]
+\def\\#1(#2){\rnode{#2}{\strut #1}}%
+%
+\vrule height0pt depth5.3ex width0pt
+\\Whom(A) did John persuade \\t(B) [ PRO to visit \\whom(C) ]
+\ncbar[armA=3.5ex,offsetB=\lingdima]{B}{A}
+\bput{0}{$M_{sp}=2$}
+\ncbar[armA=4.5ex,offsetB=-\lingdima]{C}{A}
+\bput{0}(1.2){$M_{sp}=6$}
+\xe |endCLnum
+
+\noindent Since the connections which \PSTricks\ draws are
+dimensionless, a zero width |\vrule| is used to give correct
+spacing.  (The width can first be made nonzero so it is visible,
+and the depth adjusted.)
+
+The following gives the same result.\exbreak
+
+\CLnum
+\ex
+\psset{angle=-90,nodesep=0pt,arrows=->,dima=.2em,labelsep=.25ex,
+   linearc=.7ex}|endCLnum
+\removelastskip
+\hskip.7in $\vdots$
+\vskip1em
+
+|\Lingset| and |\psset| are not entirely equivalent, even when
+\PSTricks\ is active.  If a key name in the family {\sl ling\/}
+is the same as a key name in another family which has also been
+added as part of the \PSTricks\ extended family, |\Lingset| will
+treat it unambiguously as in the {\sl ling\/} family.   |\psset|,
+on the other hand, does not give priority to keys in the {\sl
+ling\/} family.  Exactly how |\psset| establishes priority is a
+complex matter, depending on the history of the formation of the
+\PSTricks\ extended family.
+
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/14_PageBreaks.tex b/Master/texmf-dist/doc/generic/expex/source/14_PageBreaks.tex
new file mode 100644
index 00000000000..6de0627cfb9
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/14_PageBreaks.tex
@@ -0,0 +1,179 @@
+\def\TEX{T\kern-.1em\lower.5ex\hbox{E}X}
+
+\section Control over page breaking inside examples
+
+Page breaking is generally much more disruptive if it occurs
+inside an example than if it occurs in a paragraph of text. Steps
+can be taken to minimize the possibility that examples are
+disrupted by page breaks.  Avoiding disruption can mean either
+that a page break does not occur, or if it does, it happens at a
+``good place''.  If the parts of a multi-part example naturally
+form subgroups, it is desirable to encourage a break between
+subgroups and discourage a break inside a subgroup.
+
+\ExPex\ attempts to provide tools to help avoid breaking examples
+between pages and, if they must be split, making it easy to
+specify where in the example splitting should be encouraged or
+discouraged. This must be balanced with limitations on how much
+white space at the bottom of pages is allowable.
+
+The amount of whitespace at the bottom of pages and how much
+variability in the vertical skip between examples and the
+surrounding text is acceptable will probably vary between
+different intended purposes: handout, draft, paper, camera-ready
+paper, lecture notes, camera-ready book manuscript, etc.  It will
+also vary between different stages of production.  Different
+editors may have different views of the tradeoff between keeping
+examples intact and allowing whitespace at the bottom of pages.
+There is no sense in spending time on formatting while you are
+still working on a draft.  \ExPex\ therefore provides a number of
+parameters which can be adjusted to control various aspects of
+page breaking.
+
+In spite of efforts to guide \Tex\ in making good decisions about
+page breaking, the results are not always satisfactory.
+\medskip
+\begingroup \leftskip=3em \rightskip=3em
+\noindent
+\noindent Every once and a while,
+\TEX\ will produce a really awful looking page and you will
+wonder what happened.  For example, you might get just one
+paragraph and a whole lot of white space, when some of the text
+on the following page would easily fit into the white space.  The
+reason for such apparently anomalous behavior is almost always
+that no good page break is possible; even the alternative that
+looks better to you
+is quite terrible as far as \TEX\ is concerned!\par
+\hfill
+(from Knuth's
+\TEX book, p. 115)\par
+\endgroup
+\medskip
+\noindent In situations like this, one has to give up on
+encouraging \Tex\ to do the right thing and give explicit orders
+to break the page by inserting |\eject| or |\vfil\eject| in the
+appropriate place.  The drawback to an explicit order is that it
+remains in force after revisions are made to the document.  If it
+causes page breaking that is obviously bad, the problem will
+usually be seen when editing.  The biggest danger is that
+the output is not terrible, but it is less than ideal and the
+discrepancy is missed in less than meticulous copy editing.
+
+\subsection Discouraging page breaks in examples
+
+\deftagpage{exbreakpage}%
+\begininventory
+\macros* \idx{|\exbreak|}\endmc
+\parameters
+\idx{|exbreakfil|}& skip& 0\dimskip pt plus 4\dimskip ex\cr
+\idx{|exbreakpenalty|}& integer& |-500|\cr
+\idx{|splitpartspenalty|}& integer& |200|\cr
+\endinventory
+
+\noindent \Tex\ carries out page breaking by assigning a cost
+(via penalties) to each possible page break and choosing the
+lowest cost option.  Plain \Tex\ defines a macro |\goodbreak|
+which ends the current paragraph and gives a negative penalty
+($-500$) if a page break is taken after the paragraph.  A
+negative penalty is a reward, which encourages page breaking at
+that point.  The \ExPex\ macro |\exbreak| is a variant of
+|\goodbreak|.  It not only ends the current paragraph and awards a
+penalty (a reward if the penalty is negative) if a page break is
+taken at that point, but makes it easier for a satisfactory page
+break to be taken by allowing the page to end with some vertical
+fill, allowing some whitespace to appear at the bottom of the
+broken page.
+
+|\exbreak| is inserted at the beginning of every |\ex| or |\pex|
+block.  The penalty and amount of fill are parameterized.  The
+default values are suitable for camera-ready copy, assuming that
+the publisher is willing to tolerate a small amount of whitespace
+at the bottom of a page in return for keeping an example intact.
+$4\,\rm\,ex$ is about $1.5$ times the distance between baselines
+in most fonts.  For drafts, I set |exbreakfil=.3\vsize|, which
+keeps almost all examples intact at the cost of allowing substantial
+whitespace to appear at the bottom of a page.
+
+The setting of |exbreakfil| can be overridden by supplying a
+value directly as an optional argument of |\exbreak|.  For
+example, |\exbreak[5ex]| acts like |\exbreak| (with no argument)
+with |exbreakfil| is set to \textdim{5 ex}.
+
+Page breaks right before an example part in a |\pex| construction
+introduced by |\a| are discouraged by imposing a penalty
+determined by the setting of |splitpartspenalty|.
+If |splitpartspenalty| is set to 10000, such breaks will
+be completely disallowed.  I use this setting for writing drafts.
+Coupled with a generous setting of |\exbreakfil|, almost all page
+breaks in examples are eliminated, which is what I prefer in
+writing a draft.  The default value is more suitable for finished
+documents.
+
+In older versions of \ExPex\relax, |\exbreak| was called |\goodpar|.
+The present name is more consistent with \Tex's naming habits.
+
+
+\subsection Controlling where page breaks occur in examples (if
+they must)
+
+If a page break within an example cannot be avoided
+because it would require too much vertical fill to be inserted,
+it is often important to control where within the example the
+page break is made.  Consider for example a display like
+(\nextx).
+
+\framedisplay
+\pex[exbreakpenalty=-10,interpartskip=.25ex]
+\a example A
+\a contrast with example A\exbreak
+\a example B
+\a variation on B
+\a another variation on B
+\a a third variation on B\exbreak
+\a example C
+\a contrast with example C
+\xe
+\endframedisplay
+
+Suppose the logic of the examples pairs a and b, c--f, and g and
+h.  How do you avoid a page break which interrupts the logic of
+the collection of examples?  One option is the standard \Tex\
+method of using |\nobreak| to prevent a page break, as in the
+code below:
+
+ \codedisplay
+\pex[interpartskip=.25ex]
+\a example A\par\nobreak
+\a contrast with example A
+\a example B\par\nobreak
+\a variation on B\par\nobreak
+\a another variation on B\par\nobreak
+\a a third variation on B
+\a example C\par\nobreak
+\a contrast with example C
+\xe |endcodedisplay
+
+\noindent  Note that |\par| must precede |\nobreak|.  We are
+interested in preventing a page break in the process of adding
+lines to the current page, not in preventing a break in the
+process of building the lines which are added to the current
+page.  |\par| breaks the line, which takes \Tex\  out of line
+building mode and puts it into page building mode.
+
+|\exbreak| offers an alternative.
+
+\codedisplay
+\pex[interpartskip=.25ex]
+\a example A
+\a contrast with example A\exbreak
+\a example B
+\a variation on B
+\a another variation on B
+\a a third variation on B\exbreak
+\a example C
+\a contrast with example C
+\xe |endcodedisplay
+
+
+
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/README-manual.txt b/Master/texmf-dist/doc/generic/expex/source/README-manual.txt
new file mode 100644
index 00000000000..0bd07c78f60
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/README-manual.txt
@@ -0,0 +1,7 @@
+
+In order to produce the pdf file for the User's Manual, do:
+
+   etex 0
+   dvips 0
+   ps2pdf 0.ps expex-doc.pdf
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/X-code-beta.tex b/Master/texmf-dist/doc/generic/expex/source/X-code-beta.tex
new file mode 100644
index 00000000000..284ac183f72
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/X-code-beta.tex
@@ -0,0 +1,105 @@
+
+\makeatletter
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% various strategies for typesetting \tt material
+
+\chardef\other=12
+\def\allnormal{\catcode`\\=\other \catcode`\{=\other
+   \catcode`\}=\other \catcode`\$=\other  \catcode`\&=\other
+   \catcode`\#=\other  \catcode`\%=\other  \catcode`\~=\other
+   \catcode`\_=\other \catcode`\^=\other}
+\def\ttverbatim{\begingroup
+   \allnormal \obeyspaces\obeylines \tt}
+{\obeyspaces\gdef {\ }}
+
+\catcode`\|=\active
+\catcode`\¦=\active   % for | in \tt territory
+\catcode`\»=\active   % escape inside | ... |
+\catcode`\«=\active   % resume
+{\obeylines %
+\gdef\begintt{\ttverbatim %
+   \let^^M=\ \let|=\endgroup}%
+}
+\let|\begintt
+\def¦{\char"7C\relax}
+\def«{\endgroup \kern1.2pt\bgroup\sl}
+\def»{\egroup\kern.4pt\begintt}
+
+{\catcode`\^^M=\active
+\gdef\CL{%  (codelines)
+   \vskip\lingaboveexskip
+   \par \begingroup \parindent=0pt \leftskip=1em
+   \allnormal \tt %
+   \catcode`^^M=\active \let^^M=\par %
+   \catcode`\|=0 \obeyspaces \@gobble}%
+\gdef\CLboxed{%
+   \leavevmode\vtop \bgroup \begingroup \allnormal \tt
+   \catcode`^^M=\active \let^^M=\cr %
+   \catcode`\|=0 %
+   \obeyspaces\halign\bgroup ##}%
+\gdef\@CLnum{%
+   \parindent=0pt
+   \catcode`\^^M=\active \let^^M=\specialpar %
+   \catcode`\|=0 }%
+}
+\def\endCL{\endgroup \vskip\lingbelowexskip}%
+\def\endCLboxed{\egroup \endgroup\egroup}%
+\def\specialpar{%
+   \par
+   \@specialpar
+}
+\def\@specialpar{%
+   \leavevmode
+   \hbox to1.8em{\hbox to10pt{\hfil\tenrm \the\pexcnt}%
+      \hfil
+      \global\advance\pexcnt by 1}%
+}
+\def\CLnum{\smallskip\pexcnt=1 \morecode}
+\def\morecode{%
+   \smallskip \begingroup
+   \allnormal\obeyspaces\@CLnum\tt%
+}
+\def\endCLnum{\endgroup\medskip}
+
+
+\def\exCL{\ex \tt \pexcnt=1 \allnormal
+   \catcode`\|=0
+   \@exCL
+}
+{\catcode`\^^M=\active %
+   \gdef\@exCL{%
+      \catcode`\^^M=\active %
+      \let^^M=\sp@cialpar %
+      }%
+}%
+\def\sp@cialpar{%
+   \ifnum\pexcnt>1 \obeyspaces\par \fi
+   \@specialpar
+%   \leavevmode
+%   \hbox to1.8em{\hbox to10pt{\hfil\tenrm \the\pexcnt}%
+%      \hfil
+%      \global\advance\pexcnt by 1}%
+}
+%
+\def\@#1{$^{\>#1}$} % |@ for footnotes inside \CL
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\def\CLframed{%
+   \medskip
+   \line\bgroup
+      \vrule\hss
+         \vbox\bgroup\leftskip=1em
+            \hrule
+            \medskip
+            \CL\relax}
+\def\endCLframed{%
+            \endCL
+            \medskip
+            \hrule
+         \egroup
+      \hss\vrule
+   \egroup
+   \medskip
+}
+\resetatcatcode
+
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/X-contents.tex b/Master/texmf-dist/doc/generic/expex/source/X-contents.tex
new file mode 100644
index 00000000000..19621dc770d
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/X-contents.tex
@@ -0,0 +1,19 @@
+%\global\pageno=1
+\setbox0=\hbox{14}
+\edef\sec#1{\par\noexpand\leavevmode
+   \noexpand\hbox to\the\wd0{\hfil#1}\quad \ignorespaces}
+\edef\app#1{\par\noexpand\leavevmode
+   \noexpand\hbox to\the\wd0{\hfil#1}\quad \ignorespaces}
+\setbox0=\hbox{14.1}
+\edef\subsec#1{\hskip3em\noexpand\leavevmode
+   \noexpand\hbox to\the\wd0{\hfil#1}\quad \ignorespaces}
+\def\tocidx#1{#1\ignorespaces}
+\let\TT=\tt
+
+\openup.6ex
+
+\centerline{\titlefont{sec} Contents}\bigskip
+
+\input 0.toc
+
+\vfil\break
diff --git a/Master/texmf-dist/doc/generic/expex/source/X-lingdoc.tex b/Master/texmf-dist/doc/generic/expex/source/X-lingdoc.tex
new file mode 100644
index 00000000000..c4c29ce8bdb
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/X-lingdoc.tex
@@ -0,0 +1,283 @@
+
+\makeatletter
+%
+% ------ headline, footline, \psteverypage ------
+%
+\def\jfoutput{%
+   \shipout\vbox{%
+      \hbox to0pt{\the\psteverypage\hss}\pagebody}
+      \advancepageno
+      \ifnum\outputpenalty>-20000 \else\dosupereject\fi}
+\let\plainoutput=\jfoutput
+\newtoks\psteverypage
+% only commands with dimensionless results allowed in \psteverypage
+\psteverypage={\mkheadline}
+%\psteverypage={\mkheadline\showindexproofs}
+%\def\showindexproofs{\showbox\@indexproof}
+\def\mkheadline{\rput[Bl](0,\lingheadlinelevel)%
+   {\hbox to\hsize{\spaceskip=0pt \ling@headline}}}
+\define@ling@cmdkeys{headline}
+\define@linginckey\dimen{headlinelevel}
+%\define@ling@inckey{headlinelevel}
+\lingset{headline=\HLfilename,headlinelevel=.5truein}
+\def\HLfilename{%
+   \fulldate\qquad
+   \edef\temp{\topmark}\edef\Temp{\botmark}%
+   [ {\ifx\temp\Temp\else
+      \ifx\temp\@empty\else
+         \temp\ / \fi\fi\Temp} ]\hfill Page \the\pageno
+}
+\def\fulldate{%
+   {\the\day} {%
+      \ifcase\month \or January\or February\or March\or
+      April\or May\or June\or July\or August\or September\or
+      October\or November\or December\fi} \the\year
+}
+\def\HLpageonly{\hfil\ifnum\pageno>1 \the\pageno\fi}
+\def\HLpageonlybb{%
+   \ifodd\pageno\hfill\fi
+   \ifnum\pageno>1 Page \the\pageno\fi \hfil
+}
+\def\HLdateandpage{%
+   \ifnum\pageno>1
+   \fulldate\hfil \the\pageno \else \hfil\fulldate\fi
+}
+\def\bottomnumbers{%
+   \ifnum\pageno>1
+      {\advance\vsize by3em
+       \rput(.5\hsize,-\vsize){\tenrm\the\pageno}}\fi
+}
+%
+% ------ sections ------
+%
+
+\newcount\secno
+\secno=0
+\newcount\subsecno
+\newcount\subsubsecno
+\newcount\subsubsubsecno
+\define@ling@cmdkeys{secno,subsecno,subsubsecno,subsubsubsecno}
+\outer\def\section #1\par{%
+   \global\advance\secno by 1  \global\subsecno=0
+   \vskip0pt plus.3\vsize\penalty0
+   \vskip0pt plus-.3\vsize\bigskip\vskip\parskip
+   {\noindent \titlefont{sec}
+       \the\secno.\enskip #1}\par\nobreak
+   \medskip\noindent
+}
+\def\subsection{\@getoptionalarg\@subsection}
+\def\@subsection{%
+   \global\advance \subsecno by 1 \global\subsubsecno=0
+   \vskip0pt plus.1\vsize\penalty0
+   \vskip0pt plus-.1\vsize\bigskip\vskip\parskip
+   \noindent \@optionalarg \bgroup\titlefont{sub}
+      \the\secno .\the\subsecno. \enskip
+   \@@subsection
+}
+\def\@@subsection #1\par{#1\egroup\par\nobreak
+   \medskip\noindent
+}
+\outer\def\subsubsection #1 \par{%
+   \global\advance \subsubsecno by 1 \global\subsubsubsecno=0
+   \vskip0pt plus.1\vsize\penalty0
+   \vskip0pt plus-.1\vsize\bigskip\vskip\parskip
+   {\noindent \titlefont{subsub}
+      \the\secno .\the\subsecno.\the\subsubsecno \enskip #1}\par\nobreak
+   \medskip\nobreak\noindent
+}
+\def\subsubsubsection #1 \par{\advance\subsubsubsecno by 1
+   \vskip0pt plus.1\vsize\penalty0
+   \vskip0pt plus-.1\vsize\medskip
+   \noindent {\it \the\secno.\the\subsecno.\the\subsubsecno
+      .\the\subsubsubsecno\enspace #1}:\hskip.5em
+}
+\def\bulletsection #1\par{%
+   \vskip0pt plus.1\vsize\penalty0
+   \vskip0pt plus-.1\vsize\medskip
+   \noindent $\bullet$\enspace
+      {\it #1}\par\nobreak\medskip\nobreak\noindent
+}
+%
+% ------ index ------
+%
+\newif\ifgatherindex
+\gatherindexfalse
+\newwrite\ling@indexfile
+\def\write@index{\write\ling@indexfile}
+\def\gatherindex{%
+   \gatherindextrue
+   \immediate\openout\ling@indexfile=G-index
+}
+%
+% ------ contents
+%
+\newif\ifgathercontents
+\gathercontentsfalse
+\newwrite\ling@contentsfile
+\def\write@contents{\write\ling@contentsfile}
+\def\gathercontents{%
+   \gathercontentstrue
+   \immediate\openout\ling@contentsfile=\jobname.toc
+}
+%
+% ----- title, disclaimer ------
+%
+\def\title{%
+   \bgroup
+   \leftskip=0pt plus 1fil \rightskip=0pt plus 1fil
+   \parindent=0pt \parfillskip=0pt
+   \titlefont{main}%
+}
+\def\author{\vskip.7em \titlefont{subsub}}
+\def\endtitle{\vskip1.6em \egroup}
+\def\disclaimer{%
+   \leavevmode
+   \bgroup \parindent=0pt
+   \baselineskip=13pt
+   \vskip-.8truein
+   \hrule
+   \medskip
+}
+\def\enddisclaimer{%
+   \medskip
+   \egroup
+   \hrule
+   \vskip2.5em plus 2em minus .2em
+}
+%
+% ------  footnotes ------
+%
+\newif\ifgathernotes
+\gathernotesfalse
+\newwrite\ling@notesfile
+\def\write@notes{\write\ling@notesfile}
+\def\gathernotes{%
+   \gathernotestrue
+   \immediate\openout\ling@notesfile=G-notes.tex
+}
+%\def\footnote{\footsetup \footbody}
+%\def\footsetup{%
+%   \edef\fntempsf{\the\spacefactor}%
+%   \putfnno
+%   \spacefactor=\fntempsf
+%}
+%\def\putfnno{%
+%   \global\advance\fnno by 1
+%   ${}^{\the\fnno}$%
+%}
+%\newcount\fnno
+%\fnno=0
+%\def\footbody{%
+%   \ifgathernotes\immediate\write\ling@notesfile{}\fi
+%   \edef\n@xt{\noexpand\noexpand\noexpand \note\the\fnno}%
+%   \ifgathernotes
+%      \immediate\write\ling@notesfile{\n@xt}\fi
+%   \fnverbatim
+%}
+%\def\fnverbatim{\begingroup\setupcopyfn\copyfnfirst}
+%\def\setupcopyfn{%
+%   \def\do##1{\catcode`##1=12 }%
+%   \dospecials
+%   \obeylines%
+%}
+%{\obeylines
+%\gdef\copyfnfirst#1
+%  {\def\n@xt{#1}%
+%   \ifx\n@xt\empty%
+%      \else%
+%         \ifgathernotes\immediate\write\ling@notesfile{\n@xt}\fi%
+%      \fi%
+%   \copyfn%
+%}
+%\gdef\copyfn#1
+%  {\def\n@xt{#1}%
+%   \ifx\n@xt\endfn%
+%         \ifgathernotes\immediate\write\ling@notesfile{}\fi%
+%         \let\n@xt=\endgroup%
+%      \else%
+%         \ifgathernotes\immediate\write\ling@notesfile{\n@xt}\fi%
+%         \let\n@xt=\copyfn%
+%      \fi%
+%   \n@xt }%
+%}
+%\def\endfn{"endfootnote}
+\def\raisedasterisk{\raise3pt\rlap{\twelverm *}}
+\def\ackmark{$\,{}^1$ \global\fnno=1}
+%% ???? check code below
+\long\def\acknowledgement#1{%
+   \global\advance\fnno by 1
+   {\edef\next{%
+      \immediate\write@notes{\noexpand\note\the\fnno}}\next}%
+  \immediate\write\ling@notesfile{#1}%
+  \immediate\write\ling@notesfile{}}
+\def\dumpnotes{%
+   \immediate\closeout\ling@notesfile
+   \vskip30pt
+   \vskip.3\vsize\penalty-30\vskip-.3\vsize
+   \centerline{\normalsize Notes}
+   \medskip
+   \def\note ##1 {%
+      \smallskip\penalty10\noindent ##1.\quad}%
+   \footnotesize
+   \input G-notes.tex
+}
+%
+% ------ references ------
+%
+\def\dumprefs{%
+   \vskip30pt
+   \vskip.3\vsize\penalty-30\vskip-.3\vsize
+   \footnotesize
+   \parindent=0pt
+   \parskip=0pt plus 1pt
+   \rightskip=0pt
+   \tolerance=350 \interlinepenalty=400
+   \centerline{\normalsize References}
+   \bigskip
+   \input @@refs.tex
+}
+\def\dump{%
+   \ifling@printnotes \dumpnotes \fi
+   \ifling@printrefs \dumprefs \fi
+}
+%
+% ------ right arrows ------
+%
+\def\to{%
+   \ifmmode \rightarrow \else
+      \hskip\ling@toskip$\rightarrow$\hskip\ling@toskip \fi
+}
+\define@ling@cmdkeys{toskip}
+\def\normaltoskip{\lingset{toskip=1em minus .5em}}
+\normaltoskip
+\def\lingbuildrel#1#2{%
+   \hskip\ling@toskip
+   \hbox{$\buildrel {\rm #2}
+      \vrule width0pt depth\lingtorise height0pt
+      \over#1$}%
+   \hskip\ling@toskip
+}
+\def\tooby #1 {\lingbuildrel\longrightarrow{#1}}
+%   \hskip\ling@toskip
+%   \hbox{$\buildrel {\rm #1}
+%      \vrule width0pt depth\lingtorise height0pt
+%      \over\longrightarrow$}%
+%   \hskip\ling@toskip
+%}
+\define@linginckey\dimen{torise}
+\def\normaltorise{\lingset{torise=1ex}}
+\normaltorise
+%
+% ------ utilities ------
+%
+\def\clap#1{\hbox to 0pt{\hss#1\hss}}
+
+\resetatcatcode
+
+\everymath={\rm}
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\expandafter\def\expandafter\dospecials\expandafter{\dospecials\do\|}
+
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/X-local-doc.tex b/Master/texmf-dist/doc/generic/expex/source/X-local-doc.tex
new file mode 100644
index 00000000000..a92c5b778ca
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/X-local-doc.tex
@@ -0,0 +1,290 @@
+\makeatletter
+\def\slname#1{\@ifnextchar\relax{{\sl #1}}{{\sl #1\/}}}
+\def\ExPex{\slname{ExPex}}
+\def\LaTex{\slname{LaTex}}
+\def\Tex{\slname{Tex}}
+\def\XKeyVal{\slname{XKeyVal}}
+\def\PSTricks{\slname{PSTricks}}
+
+\def\index#1{%
+   \ifgatherindex
+      \write@index{#1, \the\pageno}%
+   \fi
+}
+% abbreviations
+\def\pst#1{{\sl pst-#1}}
+\def\backslash{\char"5C }
+\def\titlemacro#1{{\tt \backslash #1}}
+\def\titlekey#1{{\tt #1}}
+\def\value#1{\hbox{$\vert|#1|\vert$}}
+% headline for finished version
+\dimpuba=-\vsize \advance\dimpuba by -.4in
+\lingset{headline=\hfil \ifnum\pageno<1 \else \the\pageno\hfil \fi,
+   headlinelevel=\dimpuba}
+% formatting
+\def\parinventory{\pst@ifstar\parinventory@a}
+%\def\parinventory@a{%
+%   \par \noindent Parameter{\if@star\else s\fi}:\par\nobreak
+%   \noindent\qquad
+%   \vtop\bgroup\openup1pt
+%      \halign\bgroup##\hfil&& \qquad ##\hfil\cr}
+\def\parinventory@a{%
+   \par\bgroup  \parindent=0pt
+   \halign\bgroup ##\hfil& \quad ##\hfil&& \qquad ##\hfil\cr
+      \omit Parameter{\if@star\else s\fi}:\hidewidth\cr
+   \noalign{\par\nobreak}}
+\def\endparinventory{\egroup\egroup\bigskip\noindent}
+%\def\begininventory{\@getoptionalarg\begininventory@a}
+%\def\begininventory@a{\medskip\vbox\bgroup\hrule\medskip \bgroup
+%   \openup2pt
+%   \halign\bgroup \quad ##\hfil&&
+%      \hskip \ifx\@optionalarg\empty 2em \else\@optionalarg\fi ##\hfil\cr
+%}
+%\def\endinventory{\egroup\egroup \medskip\hrule\bigskip\egroup\noindent}
+\def\parameters{\omit Parameters:\hidewidth\cr
+   \hfil\it key& \hfil\it value& \hfil\it initial setting}
+\def\parameter{\omit Parameter:\hidewidth\cr
+   \hfil\it key& \hfil\it value& \hfil\it initial setting}
+
+\def\begininventory{\@getoptionalarg\begininventory@a}
+\def\begininventory@a{\medskip\vbox\bgroup\line{\leaders\hrule\hfil}\bgroup
+   \openup2pt
+   \halign\bgroup \quad ##\hfil&&
+      \hskip \ifx\@optionalarg\empty 2em \else\@optionalarg\fi ##\hfil\cr
+}
+\def\endinventory{\egroup\egroup \medskip\hrule\egroup\bigskip\noindent}
+\def\parameters{\omit Parameters:\hidewidth\cr
+   \hfil\it key& \hfil\it value& \hfil\it initial setting}
+\def\parameter{\omit Parameter:\hidewidth\cr
+   \hfil\it key& \hfil\it value& \hfil\it initial setting}
+\def\parameters{\omit\pst@ifstar\parameters@a}
+\def\parameters@a{Parameter\if@star\else s\fi:\hidewidth\cr
+   \hfil\it key& \hfil\it value& \hfil\it initial
+   value\cr}
+\def\parametersdef{\omit\pst@ifstar\parametersdef@a}
+\def\parametersdef@a{Parameter\if@star\else s\fi:\hidewidth\cr
+   \hfil\it key& \hfil\it value& \hfil\it initial
+   value& \hfil\it default value\cr}
+\def\macros{\omit\pst@ifstar\macros@a}
+\def\counter{\omit Counter:\enspace}
+\def\endmc{\hidewidth\cr}
+\def\macros@a{Macro\if@star\else s\fi:\enspace}
+
+\def\beginmacinventory{\pst@ifstar\beginmacinventory@a}
+\def\beginmacinventory@a{\bgroup\parindent=0pt \hrule\medskip
+   Macro{\if@star \else s\fi}:\enspace}
+\def\endmacinventory{\medskip\egroup\hrule\bigskip\noindent}
+
+
+%\def\begininventory{\bigskip\bgroup
+%   \setbox0=\vtop\bgroup\openup2pt
+%      \halign\bgroup \quad ##\hfil&& \tspace ##\hfil\cr
+%}
+%\def\endinventory{\egroup\egroup
+%   \noindent
+%      \psframebox[framesep=1ex,boxsep=false,doubleline=true]{\box0}%
+%      \egroup\bigskip}
+
+
+\def\smalldisplay{\medskip\noindent\hfil}
+\def\endsmalldisplay{\medskip\noindent}
+\def\excentered{\@getoptionalarg\exc@a}
+\def\exc@a{%
+\vbox\bgroup\bigskip \leftskip=0pt plus 1fil
+   \rightskip=0pt plus 1.2fil \parindent=0pt \parfillskip=0pt
+   \ifx\@optionalarg\@empty \else \hsize=\jf@pars \fi
+   \let\xe=\exc@b
+   \hrule
+   \par\nobreak
+   \bigskip
+}
+\def\exc@b{\par\nobreak\bigskip\hrule\bigskip\egroup}
+% \tfb (tight frame box)
+\def\tfb{\medskip \setbox\tmpbox=\hbox\bgroup}
+\def\endtfb{\egroup\noindent
+   \psframebox[boxsep=true,framesep=3pt]{\box\tmpbox}\medskip}
+
+% pst-asr utilities
+
+\def\slant#1{{\sl #1}}
+
+\parindent=2em
+\rightskip=0pt plus 2em
+
+\newbox\@framedisplaybox
+\newskip\abovefdskip
+\newskip\abovefdtildeskip
+\newskip\aboveexskipfd
+\abovefdskip=\lingaboveexskip
+\abovefdtildeskip=1ex
+\define@ling@cmdkeys{abovefdskip,belowfdskip,
+   fdtopcorrect,fdbotcorrect,everyfd}
+\Lingset{%
+   boxsep=false,
+   framesep=1.5ex,
+   abovefdskip=2.8ex plus .5ex,
+   belowfdskip=2ex plus .3ex minus .1ex,
+   fdtopcorrect=\lingaboveexskip,
+   fdbotcorrect=\lingbelowexskip
+}
+\def\framedisplay{\@tildecheck\framedisplay@a}
+\def\framedisplay@a{\@getoptionalarg\framedisplay@aa}
+\def\framedisplay@aa{\bgroup
+   \Ling@usearg
+   \setbox\@framedisplaybox=\vbox\bgroup\vskip-\ling@fdtopcorrect
+}
+\def\endframedisplay{%
+   \vskip-\ling@fdbotcorrect
+   \egroup
+   \vskip\ling@abovefdskip
+   \noindent
+   \psframebox[boxsep=false,linewidth=1.2pt]%
+      {\copy\@framedisplaybox}%
+   \vskip\ling@belowfdskip
+   \egroup
+}
+\define@choicekey{ling}{fdcorrect}[\ling@fdcorrect\@N]%
+   {none,both,bottom,top}{%
+      \ifcase\@N
+            \lingset{fdtopcorrect=0pt,fdbotcorrect=0pt}
+         \or
+            \lingset{fdtopcorrect=\lingaboveexskip,
+               fdbotcorrect=\lingbelowexskip}
+         \or
+            \lingset{fdtopcorrect=0pt,
+               fdbotcorrect=\lingbelowexskip}
+         \or
+            \lingset{fdtopcorrect=\lingaboveexskip,
+               fdbotcorrect=0pt}
+         \fi
+}
+\lingset{fdcorrect=both}
+
+% code fragment display
+\def\codefragment{\medskip\begingroup \leftskip=3em \parindent=0pt
+   \obeylines}
+\def\endcodefragment{\medskip\endgroup \noindent}
+\def\exfrag{%
+   \exdisplay[exskip=1.3ex plus.4ex minus.4ex]\noexno}
+% #2 can be \par, so \long is needed
+\long\def\if@tildeverb#1#2{\ifx#2~\@tildetrue\def\next{#1}\else
+   \@tildefalse\def\next{\expandafter #1\string#2}\fi \next}
+\def\codedisplay{\if@tildeverb\codedisplay@a}
+\def\codedisplay@a{%
+   \edef\@@aboveexskip{\ifx\next\empty 0pt\else 1.5ex\fi}%
+   \exdisplay[aboveexskip=\@@aboveexskip,
+      belowexskip=1.5ex]\noexno
+   \verbatim}
+\def\endcodedisplay{\endverbatim\xe}
+\def\ellide{\kern.6em\dots\kern.3em}
+\def\verbdots{\endverbatim \ellide\verbatim}
+
+\def\normalss{\def\leftss{.55}\def\rightss{.35}}
+\def\setss #1 #2 {\def\leftss{#1}\def\rightss{#2}}
+\normalss
+
+% side by side, code and output
+\def\beginss{\if@tildeverb\beginss@a}
+\def\beginss@a{%
+   \if@tilde\else\bigskip\fi
+   \bgroup
+   \parindent=0pt
+   \noindent
+   \line
+      \bgroup\vtop\bgroup
+      \hsize=\leftss\hsize
+         \verbatim
+}
+\def\midss{%
+         \endverbatim
+   \egroup
+   \hsize=\rightss\hsize
+   \setbox\@framedisplaybox=\vtop\bgroup
+      \lingset{exskip=0pt}
+
+}
+\def\endss{%
+   \egroup
+   \hfill
+   \vtop{%
+      \psframebox[boxsep=false]{\box\@framedisplaybox}%
+      \bigskip}%
+   \egroup\egroup
+   \bigskip
+   \noindent
+}
+% auxiliary fonts
+\font\spacefont=txsya at 10pt
+\font\titlett=txtt at 13.3pt
+
+\edef\spacesym{\lower1.6pt
+   \hbox to\wd0{\spacefont \kern.3pt\char"78 \hss\char"79 \kern.3pt}}
+\def\ttcs#1{{\tt \char"5C #1}}
+
+\outer\def\section #1\par{%
+   \global\advance\secno by 1  \global\subsecno=0
+      \global\subsubsecno=0
+   \vfil\eject
+   {\noindent \sectiontitlefont
+       \the\secno.\enskip #1\par}\nobreak
+   \xdef\sectiontitle{\twelverm Section \the\secno:\enspace #1}%
+   \ifgathercontents \edef\temp{{\the\secno}}%
+      \expandafter\writecontents\temp{#1}\sec\fi \nobreak
+   \medskip\nobreak\noindent
+}
+%\def\mkheadline{%\rput[Bl](0,\lingheadlinelevel){%
+%   \rput[Bl](0,5.5ex){\hbox to\hsize{\sectiontitle\hfil
+%      \ifnum\pageno>0 \the\pageno \fi}}}
+\def\sectiontitle{}
+\font\sectiontitlefont=t1xss at 14pt
+
+\def\chapscurrsec{\ifnum\chapno>0 \the\chapno
+   \ifnum\secno>0 .\the\secno
+   \ifnum\subsecno>0 .\the\subsecno
+   \ifnum\subsubsecno>0 .\the\subsubsecno \fi\fi\fi\fi}
+\def\nochapscurrsec{\ifnum\secno>0 \the\secno
+   \ifnum\subsecno>0 .\the\subsecno
+   \ifnum\subsubsecno>0 .\the\subsubsecno \fi\fi\fi}
+\let\currsec\nochapscurrsec
+\def\deftagsec#1{\deftag\currsec{#1}}
+\def\introsec#1{%
+   \noindent \the\introsecno.\enspace
+   \advance\introsecno by 1
+   {\it #1}
+   \medskip
+}
+\newcount\introsecno
+\introsecno=1
+\define@lingcmdkeys{secfil}
+\outer\def\section #1\par{%
+   \global\advance\secno by 1
+   \global\subsecno=0
+   \global\subsubsecno=0
+   \vskip0pt plus \lingsecfil
+   \penalty-20
+   \vskip0pt plus -\lingsecfil
+   \bigskip
+   \vskip\parskip
+   {\noindent \titlefont{main}
+       \the\secno.\enskip #1}\par\nobreak
+   \ifgathercontents \edef\temp{{\the\secno}}%
+      \expandafter\writecontents\temp{#1}\sec\fi
+   \medskip\noindent
+}
+\lingset{secfil=.2\vsize}
+
+\resetatcatcode
+
+\lingset{exbreakfil=8ex}
+\raggedbottom
+\def\dimskip{\hskip.12em}
+\def\textdim#1{\textdimA#1 }
+\def\textdimA#1 #2 {\hbox{#1\dimskip #2}}
+\def\user{\raise.2ex\hbox{$\dag $}}
+\def\inc{(!)\kern.7pt}
+% ---- small caps
+%\font\twelvesc=cmcsc10 scaled\magstep1
+\let\sc=\twelvesc
+\def\textsc#1{{\sc #1}}
+%
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/X-mkindex.tex b/Master/texmf-dist/doc/generic/expex/source/X-mkindex.tex
new file mode 100644
index 00000000000..f1d855a3a83
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/X-mkindex.tex
@@ -0,0 +1,61 @@
+
+\vfil\break
+\tocentry{Index of control sequences, parameters, and
+special symbols}\tocidx{}
+
+%\def\indexentry#1#2{#1\hfill #2}
+%
+
+\newbox\indexbox
+\newbox\leftcol
+\newbox\rightcol
+
+
+\def\beginindexbox{%
+   \setbox\indexbox=\vbox\bgroup\parskip=0pt plus .4pt
+      \everypar={\hangindent=1em \hangafter=1}%
+      \linepenalty=200 \hsize=.45\hsize \rightskip=0pt plus 1em
+      \parindent=0pt
+      \obeylines}
+\let\endindexbox\egroup
+
+\beginindexbox%
+\obeylines\input ./0-index.tex
+\endindexbox
+
+\splittopskip=0pt
+\dimpubb=\dimexpr \vsize -55pt \relax
+\dimpuba=\dimexpr \vsize -10pt \relax
+
+\def\firstpage{\setbox\leftcol=\vsplit\indexbox to \dimpubb
+   \setbox\rightcol=\vsplit\indexbox to \dimpubb
+   \line{\vtop{\vskip\splittopskip\unvbox\leftcol}\hfil
+      \vtop{\unvbox\rightcol}}%
+   \vfil\break
+}
+\def\fullpage{\setbox\leftcol=\vsplit\indexbox to \dimpuba
+   \setbox\rightcol=\vsplit\indexbox to \dimpuba
+   \line{\vtop{\vskip\splittopskip\unvbox\leftcol}\hfil
+      \vtop{\unvbox\rightcol}}
+   \vfil\break
+}
+\def\lastpage{%
+   \setbox\leftcol=\vsplit\indexbox to .54\ht\indexbox
+   \setbox\rightcol=\vsplit\indexbox to \ht\indexbox
+   \line{\vtop{\vskip\splittopskip\unvbox\leftcol}\hfil
+      \vtop{\unvbox\rightcol}}%
+}
+
+
+\vfil\eject
+\xdef\sectiontitle{Index}%
+\leavevmode\vskip-1ex
+\centerline{\sectiontitlefont Index of control sequences,
+parameters, and special symbols\qquad}
+\bigskip
+
+\firstpage
+\lastpage
+
+\endinput
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/X-mybasics.tex b/Master/texmf-dist/doc/generic/expex/source/X-mybasics.tex
new file mode 100644
index 00000000000..07e96cca611
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/X-mybasics.tex
@@ -0,0 +1,22 @@
+
+\def\writeln#1{\immediate\write16{#1}\ignorespaces}
+\def\makeatletter{%
+  \edef\resetatcatcode{\catcode`\noexpand\@\the\catcode`\@\relax}%
+  \catcode`\@11\relax
+}%
+\makeatletter
+% \get is like \input, but is more tolerant of special characters
+%    and groups the input
+\def\get{\begingroup \get@A \get@B}
+\def\get@A{\bgroup \catcode`_=11 \catcode`~=11}
+\def\get@B #1 {\get@C #1 \endgroup}
+% \getinput reads funny file names, but doesn't group
+\def\getinput{\get@A \get@C}
+\def\get@C #1 {\gdef\@filename{#1}\egroup \mark{\@filename}
+   \input\@filename}
+%% public dimensions and skips (for general use)
+\newdimen\dimpuba
+\newdimen\dimpubb
+\def\@enamedef#1{\expandafter\edef\csname #1\endcsname}
+\resetatcatcode
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/X-sections.tex b/Master/texmf-dist/doc/generic/expex/source/X-sections.tex
new file mode 100644
index 00000000000..2c6a4163167
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/X-sections.tex
@@ -0,0 +1,84 @@
+% sections
+\makeatletter
+
+\outer\def\section #1\par{%
+   \global\advance\secno by 1  \global\subsecno=0
+      \global\subsubsecno=0
+   \vskip0pt plus.4\vsize\penalty-120
+   \vskip0pt plus-.4\vsize\bigskip\vskip\parskip
+   {\noindent \titlefont{sec}
+       \the\secno.\enskip #1\par}\nobreak
+   \tocentry{\the\secno}\sec
+%   \ifgathercontents \edef\temp{{\the\secno}}%
+%      \expandafter\writecontents\temp{#1}\sec\fi
+   \nobreak
+   \medskip
+   \nobreak
+   \noindent
+}
+% The starred version does not introduce a breakpoint, so that an
+% immediately preceeding section heading is not orphaned.
+\def\subsection{\pst@ifstar\sub@section}
+\def\sub@section #1\par{%
+   \global\advance \subsecno by 1
+   \global\subsubsecno=0
+   \if@star
+   \else
+      \vskip0pt plus.1\vsize\penalty-100
+      \vskip0pt plus-.1\vsize
+   \fi
+   \bigskip\vskip\parskip
+   {\noindent \titlefont{sub}%
+      \the\secno .\the\subsecno.\enskip \ignorespaces #1}\par\nobreak
+   \tocentry{\the\secno.\the\subsecno}\subsec{#1}
+   \par\nobreak\medskip\nobreak\noindent
+}
+\outer\def\subsubsection #1 \par{%
+   \global\advance \subsubsecno by 1 \global\subsubsubsecno=0
+   \vskip0pt plus.1\vsize\penalty0
+   \vskip0pt plus-.1\vsize\bigskip\vskip\parskip
+   {\noindent \titlefont{subsub}
+      \the\secno .\the\subsecno.\the\subsubsecno \enskip #1}\par\nobreak
+%   \tocentry{\the\secno.\the\subsecno.\the\subsubsecno}\subsubsec{#1}
+   \medskip\nobreak\noindent
+}
+\def\tocentry#1#2#3{%
+   \ifgathercontents \edef\temp{{#1}}%
+      \expandafter\writecontents\temp{#3}#2\fi
+}
+\def\writecontents#1#2#3{%
+   \write@contents{\noexpand#3{#1} {#2}
+         \noexpand\writefill \the\pageno \noexpand\par}%
+}
+\def\writefill{%
+   \leaders\hbox to 2ex{\hfil.\hfil}\hfill\enspace
+}
+\outer\def\appendix#1#2\par{%
+   \vskip0pt plus.4\vsize\penalty-20
+   \vskip0pt plus-.4\vsize\bigskip\vskip\parskip
+   \def\app@name{#1}\subsecno=0%
+   {\noindent \titlefont{sec}
+      Appendix #1.\enspace
+         \ignorespaces#2\par}\nobreak
+   \ifgathercontents \edef\temp{{#1}}%
+      \expandafter\writecontents\temp{#2}\sec\fi
+   \medskip\nobreak\noindent
+}
+\def\subappendix#1\par{%
+   \medskip
+   \noindent
+   \advance\subsecno by 1
+   {\titlefont{sub}\app@name.\the\subsecno.\enspace
+      \ignorespaces#1\medskip\noindent}%
+   \ifgathercontents \edef\temp{{\app@name.\the\subsecno}}%
+      \expandafter\writecontents\temp{#1}\subsec\fi \nobreak
+}
+\def\currsec{\ifnum\secno>0 \the\secno
+   \ifnum\subsecno>0 .\the\subsecno
+   \ifnum\subsubsecno>0 .\the\subsubsecno \fi\fi\fi}
+\def\deftagsec#1{\deftag\currsec{#1}}
+
+%\newif\iftracingtagrefs
+
+
+\resetatcatcode
diff --git a/Master/texmf-dist/doc/generic/expex/source/X-timesfonts.tex b/Master/texmf-dist/doc/generic/expex/source/X-timesfonts.tex
new file mode 100644
index 00000000000..b354bd897ab
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/X-timesfonts.tex
@@ -0,0 +1,472 @@
+%%%%%%%%%%% fonts
+% Cork encoding is used so that accents work properly with
+%  tipa fonts.  Accents must be redefined (below).
+% rm
+\font\twelverm=t1xr at 12pt
+\font\elevenrm=t1xr at 11pt
+\font\tenrm=t1xr at 10pt
+\font\ninerm=t1xr at 9pt
+\font\eightrm=t1xr at 8pt
+\font\sevenrm=t1xr at 7pt
+\font\sixrm=t1xr at 6pt
+\font\fiverm=t1xr at 5pt
+% mit
+\font\twelvei=txmi at 12pt
+\font\eleveni=txmi at 11pt
+\font\teni=txmi at 10pt
+\font\eighti=txmi at 8pt
+\font\seveni=txmi at 7pt
+\font\sixi=txmi at 6pt
+\font\fivei=txmi at 5pt
+% bold mit
+\font\sevenbi=txbmi at 7pt
+% mita
+\font\twelveia=txmia at 12pt
+\font\elevenia=txmia at 11pt
+\font\tenia=txmia at 10pt
+% symbol
+\font\twelvesy=txsy at 12pt
+\font\elevensy=txsy at 11pt
+\font\tensy=txsy at 10pt
+\font\eightsy=txsy at 8pt
+\font\sevensy=txsy at 7pt
+\font\sixsy=txsy at 6pt
+\font\fivesy=txsy at 5pt
+% extended symbol
+\font\twelveex=txex at 12pt
+\font\elevenex=txex at 11pt
+\font\tenex=txex at 10pt
+\font\eightex=txex at 8pt
+\font\sevenex=txex at 7pt
+\font\sixex=txex at 6pt
+\font\fiveex=txex at 5pt
+% sl
+\font\twelvesl=t1xsl at 12pt
+\font\elevensl=t1xsl at 11pt
+\font\tensl=t1xsl at 10pt
+\font\eightsl=t1xsl at 8pt
+\font\sevensl=t1xsl at 7pt
+\font\sixsl=t1xsl at 6pt
+\font\fivesl=t1xsl at 5pt
+% bf
+\font\twelvebf=t1xb at 12pt
+\font\elevenbf=t1xb at 11pt
+\font\tenbf=t1xb at 10pt
+\font\eightbf=t1xb at 8pt
+\font\sevenbf=t1xb at 7pt
+\font\sixbf=t1xb at 6pt
+\font\fivebf=t1xb at 5pt
+% tt
+\font\twelvett=txtt at 12pt
+\font\eleventt=txtt at 11pt
+\font\tentt=txtt at 10pt
+\font\eighttt=txtt at 8pt
+\font\seventt=txtt at 7pt
+\font\sixtt=txtt at 6pt
+% it
+\font\twelveit=t1xi at 12pt
+\font\elevenit=t1xi at 11pt
+\font\tenit=t1xi at 10pt
+\font\eightit=t1xi at 8pt
+\font\sevenit=t1xi at 7pt
+\font\sixit=t1xi at 6pt
+\font\fiveit=t1xi at 5pt
+% bold symbol
+\font\twelvebsy=txbsy at 12pt
+\font\elevensy=txbsy at 11pt
+\font\tenbsy=txbsy at 10pt
+\font\ninebsy=txbsy at 9pt
+\font\eightbsy=txbsy at 8pt
+\font\sevenbsy=txbsy at 7pt
+\font\sixbsy=txbsy at 6pt
+\font\fivebsy=txbsy at 5pt
+% bold slant
+\font\twelvebsl=t1xbsl at 12pt
+\font\tenbsl=t1xbsl at 10pt
+\font\eightbsl=t1xbsl at 8pt
+\font\sevenbsl=t1xbsl at 7pt
+\font\sixbsl=t1xbsl at 6pt
+% ipr
+\font\twelveipr=xipa10 at 12pt
+\font\tenipr=xipa10 at 10pt
+\font\eightipr=xipa10 at 8pt
+\font\sevenipr=xipa10 at 7pt
+\font\sixipr=xipa10 at 6pt
+\font\fiveipr=xipa10 at 5pt
+% ips
+\font\twelveips=xipasl10 at 12pt
+\font\tenips=xipasl10 at 10pt
+\font\eightips=xipasl10 at 8pt
+\font\sevenips=xipasl10 at 7pt
+\font\sixips=xipasl10 at 6pt
+\font\fiveips=xipasl10 at 5pt
+% ipb
+\font\twelveipb=xipab10 at 12pt
+\font\tenipb=xipab10 at 10pt
+\font\eightipb=xipab10 at 8pt
+\font\sevenipb=xipab10 at 7pt
+\font\sixipb=xipab10 at 6pt
+\font\fiveipb=xipab10 at 5pt
+% ipbs
+\font\twelveipbs=xipabs10 at 12pt
+\font\tenipbs=xipabs10 at 10pt
+\font\eightipbs=xipabs10 at 8pt
+\font\sevenipbs=xipabs10 at 7pt
+\font\sixipbs=xipabs10 at 6pt
+\font\fiveipbs=xipabs10 at 5pt
+% small caps
+\font\twelvesc=t1xsc at 12pt
+\font\tensc=t1xsc at 10pt
+\makeatletter
+\define@ling@cmdkeys{titles}
+%%%% title fonts
+\def\settitlefont[#1,#2,#3]#4={%
+   \expandafter\def\expandafter\temp\expandafter
+      {\csname #2titlefont#1#3\endcsname}%
+   \@ifnextchar={\expandafter\let\temp}{\expandafter\font\temp}%
+}
+\def\notitles{\def\titlefont##1{\sl}}
+\def\sstitles{%
+   \settitlefont[ss,main,]       =t1xss at 16pt
+   \settitlefont[ss,main,sl]     =t1xsssl at 16pt
+   \settitlefont[ss,sec,]        =t1xss at 12.5pt
+   \settitlefont[ss,sec,sl]      =t1xsssl at 13pt
+   \settitlefont[ss,sec,tt]      =txtt at 14pt
+   \settitlefont[ss,sub,]        =t1xss at 12pt
+   \settitlefont[ss,sub,sl]      =t1xsssl at 12pt
+   \settitlefont[ss,sub,tt]      =txtt at 13pt
+   \settitlefont[ss,subsub,]     =t1xss at 12pt
+   \settitlefont[ss,subsubsub,]  =t1xsssl at 12pt
+   \def\titlefont##1{\csname ##1titlefontss\endcsname
+      \expandafter\let\expandafter\sl
+         \csname ##1titlefontsssl\endcsname
+      \expandafter\let\expandafter\tt
+         \csname ##1titlefontsstt\endcsname
+         \ignorespaces}}
+\def\rmtitles{%
+   \settitlefont[rm,main,]       =txb at 16pt
+   \settitlefont[rm,main,sl]     =txbsl at 16pt
+   \settitlefont[rm,sec,]        =txb at 14pt
+   \settitlefont[rm,sec,sl]      =txbsl at 14pt
+   \settitlefont[rm,sub,]        =txb at 13pt
+   \settitlefont[rm,sub,sl]      =txbsl at 13pt
+   \settitlefont[rm,subsub,]     \twelvebf
+   \settitlefont[rm,subsub,sl]   \twelvebs
+   \def\titlefont##1{\csname ##1titlefontrm\endcsname
+      \expandafter\let\expandafter\sl
+         \csname ##1titlefontrmsl\endcsname
+      \expandafter\let\expandafter\tt
+         \csname ##1titlefontrmtt\endcsname \ignorespaces}%
+}
+%%%% title fonts
+\def\settitlefont[#1,#2,#3]#4={%
+   \expandafter\def\expandafter\temp\expandafter
+      {\csname #2@TF#1@#3\endcsname}%
+   \@ifnextchar={\expandafter\let\temp}{\expandafter\font\temp}%
+}
+\def\notitles{\def\titlefont##1{\sl}}
+\def\sstitles{%
+   \settitlefont[ss,main,]       =t1xss at 16pt
+   \settitlefont[ss,main,sl]     =t1xsssl at 16pt
+   \settitlefont[ss,sec,]        =t1xss at 12.5pt
+   \settitlefont[ss,sec,sl]      =t1xsssl at 13pt
+   \settitlefont[ss,sec,tt]      =txtt at 14pt
+   \settitlefont[ss,sub,]        =t1xss at 12pt
+   \settitlefont[ss,sub,sl]      =t1xsssl at 12pt
+   \settitlefont[ss,sub,tt]      =txtt at 13pt
+   \settitlefont[ss,subsub,]     =t1xss at 12pt
+   \settitlefont[ss,subsubsub,]  =t1xsssl at 12pt
+   \def\titlefont##1{%
+      \csname ##1@TFss@\endcsname
+      \expandafter\let\expandafter\sl
+         \csname ##1@TFss@sl\endcsname
+      \expandafter\let\expandafter\tt
+         \csname ##1@TFss@tt\endcsname
+         \ignorespaces}%
+}
+\def\rmtitles{%
+   \settitlefont[rm,main,]       =txb at 16pt
+   \settitlefont[rm,main,sl]     =txbsl at 16pt
+   \settitlefont[rm,sec,]        =txb at 14pt
+   \settitlefont[rm,sec,sl]      =txbsl at 14pt
+   \settitlefont[rm,sub,]        =txb at 13pt
+   \settitlefont[rm,sub,sl]      =txbsl at 13pt
+   \settitlefont[rm,subsub,]     ==\twelvebf
+   \settitlefont[rm,subsub,sl]   ==\twelvebs
+   \def\titlefont##1{\csname ##1@TFrm@\endcsname
+      \expandafter\let\expandafter\sl
+         \csname ##1@TFrm@sl\endcsname
+      \expandafter\let\expandafter\tt
+         \csname ##1@TFrm@tt\endcsname \ignorespaces}%
+}
+\ifx\ling@titles\undefined \lingset{titles=ss}\fi
+\csname \ling@titles titles\endcsname
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+% already allocated 0,1,2,3,\itfam (4), \slfam (5),
+%     \bffam (6), \ttfam (7)
+
+\newfam\bcalfam        % 8    bold math symbol
+\newfam\smallcalfam    % 9    small math symbol
+\newfam\smallrmfam     % A
+\newfam\mitafam        % B    alternate math symbol
+\newfam\iprfam         % C
+\newfam\ipsfam         % D
+\newfam\ipbfam         % E
+\newfam\ipbsfam        % F
+
+\newtoks\everysizechange    \everysizechange={}
+
+\def\twelvepoint{%
+   \textfont0=\twelverm
+      \scriptfont0=\eightrm
+      \scriptscriptfont0=\sixrm
+   \textfont1=\twelvei
+      \scriptfont1=\eighti
+      \scriptscriptfont1=\sixi
+   \textfont2=\twelvesy
+      \scriptfont2=\eightsy
+      \scriptscriptfont2=\sixsy
+   \textfont3=\twelveex
+      \scriptfont3=\eightex
+      \scriptscriptfont3=\sixex
+   \textfont\itfam=\twelveit
+      \scriptfont\itfam=\eightit
+   \textfont\slfam=\twelvesl
+      \scriptfont\slfam=\eightsl
+      \scriptscriptfont\slfam=\sixsl
+   \textfont\bffam=\twelvebf
+      \scriptfont\bffam=\eightbf
+      \scriptscriptfont\bffam=\sixbf
+   \textfont\ttfam=\twelvett
+      \scriptfont\ttfam=\eighttt
+   \textfont\bcalfam=\twelvebsy
+      \scriptfont\bcalfam=\eightbsy
+   \textfont\smallcalfam=\tensy
+      \scriptfont\smallcalfam=\sevensy
+   \textfont\smallrmfam=\tenrm
+      \scriptfont\smallrmfam=\sevenrm
+   \textfont\mitafam=\twelveia
+   \textfont\iprfam=\twelveipr
+   \textfont\ipsfam=\twelveips
+   \textfont\ipbfam=\twelveipb
+   \textfont\ipbsfam=\twelveipbs
+   \def\rmr{\fam0           \twelverm   }%
+   \def\rms{\fam\slfam      \twelvesl   }%
+   \def\rmb{\fam\bffam      \twelvebf   }%
+   \def\rmbsl{\fam\bslfam   \twelvebsl  }%
+   \def\rm{\rmr \let\sl\rms \let\bf\rmb \let\bsl\rmbs}
+   \let\ipr=\twelveipr
+   \let\ips=\twelveips
+   \let\ipb=\twelveipb
+   \let\ipbs=\twelveipbs
+   \def\ip{\ipr \let\sl\ips \let\bsl\ipbs}
+   \def\tt{\fam\ttfam     \twelvett   }%
+   \def\it{\fam\itfam     \twelveit   }%
+   \let\mita=\twelveia
+   \normalbaselineskip=14pt
+   \def\examplebaselines{%
+      \baselineskip=\normalbaselineskip
+      \lineskip=\normallineskip
+      \lineskiplimit=\normallineskiplimit}%
+   \bigskipamount=12pt plus4pt  minus4pt
+   \setbox\strutbox=\hbox{\vrule height10pt depth4pt width0pt}%
+   \let\sc=\twelvesc
+   \let\big=\twelvebig
+   \normalbaselines
+   \rm
+   \the\everysizechange
+}
+
+%% fix the baselineskip
+\def\elevenpoint{\def\jf@fontsize{eleven}%
+   \textfont0=\elevenrm \scriptfont0=\eightrm \scriptscriptfont0=\sixrm
+   \textfont1=\eleveni	 \scriptfont1=\eighti  \scriptscriptfont1=\sixi
+   \textfont2=\elevensy \scriptfont2=\eightsy \scriptscriptfont2=\sixsy
+   \textfont3=\elevenex \scriptfont3=\eightex \scriptscriptfont3=\sixex
+   \textfont\slfam=\elevensl	  \scriptfont\slfam=\eightsl
+      \scriptscriptfont\slfam=\sixsl
+   \textfont\bffam=\elevenbf	  \scriptfont\bffam=\eightbf
+      \scriptscriptfont\bffam=\sixbf
+   \textfont\ttfam=\eleventt	  \scriptfont\ttfam=\eighttt
+   \textfont\itfam=\elevenit	  \scriptfont\itfam=\eightit
+   \def\rm{\fam0          \elevenrm }%
+   \def\tt{\fam\ttfam     \eleventt }%
+   \def\it{\fam\itfam     \elevenit }%
+   \def\sl{\fam\slfam     \elevensl }%
+   \def\bf{\fam\bffam     \elevenbf }%
+   \let\mita=\elevenia
+   \normalbaselineskip=13pt
+   \bigskipamount=13pt plus2pt  minus2pt
+   \def\examplebaselines{%
+      \baselineskip=13pt plus 2pt minus 1pt
+      \lineskiplimit=2pt
+      \lineskip=2pt plus 1pt
+   }%
+   \setbox\strutbox=\hbox{\vrule height10pt depth3pt width0pt}%
+   \normalbaselines
+   \rm
+   \the\everysizechange
+}
+
+\def\tenpoint{\def\jf@fontsize{ten}%
+   \textfont0=\tenrm \scriptfont0=\sevenrm \scriptscriptfont0=\fiverm
+   \textfont1=\teni	 \scriptfont1=\seveni  \scriptscriptfont1=\fivei
+   \textfont2=\tensy \scriptfont2=\sevensy \scriptscriptfont2=\fivesy
+   \textfont3=\tenex \scriptfont3=\sevenex \scriptscriptfont3=\fiveex
+   \textfont\slfam=\tensl	  \scriptfont\slfam=\sevensl
+   \textfont\bffam=\tenbf	  \scriptfont\bffam=\sevenbf
+   \textfont\ttfam=\tentt	  \scriptfont\ttfam=\seventt
+   \textfont\itfam=\tenit	  \scriptfont\itfam=\sevenit
+%   \textfont\bslfam=\tenbsl \scriptfont\bslfam=\sevenbsl
+%   \textfont\bcalfam=\tenbsy
+%      \scriptfont\bcalfam=\sevenbsy
+%   \textfont\smallrmfam=\eightrm
+%      \scriptfont\smallrmfam=\sixrm
+%   \textfont\smallcalfam=\eightsy
+%      \scriptfont\smallcalfam=\sevensy
+%   \textfont\iprfam=\tenipr \scriptfont\iprfam=\sevenipr
+%      \scriptscriptfont\iprfam=\fiveipr
+%   \textfont\ipsfam=\tenips \scriptfont\ipsfam=\sevenips
+%      \scriptscriptfont\ipsfam=\fiveips
+%   \textfont\ipbfam=\tenipb \scriptfont\ipbfam=\sevenipb
+%      \scriptscriptfont\ipbfam=\fiveipb
+%   \textfont\ipbsfam=\tenipbs \scriptfont\ipbsfam=\sevenipbs
+%      \scriptscriptfont\ipbsfam=\fiveipbs
+   \def\rm{\fam0          \tenrm   }%
+   \def\tt{\fam\ttfam     \tentt   }%
+   \def\it{\fam\itfam     \tenit   }%
+   \def\sl{\fam\slfam     \tensl   }%
+   \def\bf{\fam\bffam     \tenbf   }%
+%   \def\bsl{\fam\bslfam   \tenbsl  }%
+%   \def\ipr{\fam\iprfam   \tenipr  }%
+%   \def\ips{\fam\ipsfam   \tenips  }%
+%   \def\ipb{\fam\ipbfam   \tenipb  }%
+%   \def\ipbs{\fam\ipbsfam \tenipbs }%
+   \let\mita=\tenia
+   \normalbaselineskip=12.2pt
+   \def\examplebaselines{\baselineskip=12.2pt plus 1pt
+      \lineskiplimit=1.5pt \lineskip=1.5pt plus 1pt}%
+   \bigskipamount=10pt plus3pt minus3pt
+   \setbox\strutbox=\hbox{\vrule height8.5pt depth3.7pt width0pt}%
+   \let\sc=\tensc
+   \let\big=\tenbig
+   \normalbaselines
+   \rm
+   \the\everysizechange
+}
+
+\gdef\twelvebig#1{{\hbox{$\left#1\vbox to 9.5pt{}\right.\n@space$}}}
+\gdef\tenbig#1{{\hbox{$\left#1\vbox to 8pt{}\right.\n@space$}}}
+
+\let\normalsize=\twelvepoint
+\let\footnotesize=\tenpoint
+\normalsize
+
+%% encoding is Cork throughout
+\def\'#1{{\accent "01 #1}}
+\def\`#1{{\accent "00 #1}}
+\def\"#1{{\accent "04 #1}}
+\def\^#1{{\accent "02 #1}}
+\def\=#1{{\accent "09 #1}}
+\def\~#1{{\accent "03 #1}}
+\def\v#1{{\accent "07 #1}}
+\def\u#1{{\accent "08 #1}}
+\chardef\i='031
+\chardef\j='032
+\chardef\ae='346
+\chardef\AE="C6
+\chardef\oe="F7
+\chardef\OE="D7
+\chardef\o="F8
+\chardef\O="D8
+\chardef\aa="E5
+\chardef\AA="C5
+\def\.#1{\oalign{#1\crcr\hidewidth\the\textfont0.\hidewidth}}
+\def\c#1{{\edef\temp{\the\font}\setbox0=\hbox{\temp #1}%
+   \ifdim\ht0=1ex \accent"0B #1\else
+      {\ooalign{\hidewidth\char"0B\hidewidth\crcr \unhbox0}}\fi}}
+\def\h#1{{\edef\temp{\the\font}\setbox0=\hbox{\temp #1}%
+   \ifdim\ht0=1ex \accent"0C #1\else
+      {\ooalign{\hidewidth\char"0C\hidewidth\crcr \unhbox0}}\fi}}
+\def\GreekCap#1{\ifmmode\mathchar"0C0#1\else{\mita\char"0#1}\fi}
+\mathchardef\Gamma"0B00
+\mathchardef\Delta"0B01
+\mathchardef\Theta"0B02
+\mathchardef\Lambda"0B03
+\mathchardef\Xi"0B04
+\mathchardef\Pi"0B05
+\mathchardef\Sigma"0B06
+\mathchardef\Upsilon"0B07
+\mathchardef\Phi"0B08
+\mathchardef\Psi"0B09
+\mathchardef\Omega"0B0A
+
+\def\grave{\mathaccent"000}
+\def\acute{\mathaccent"001}
+\def\hat{\mathaccent"002}
+\def\breve{\mathaccent"008}
+\def\tilde{\mathaccent"003}
+\def\bar{\mathaccent"009}
+%
+
+\def\iffslant#1#2{\ifdim\the\fontdimen1\font > 0pt #1\else #2\fi}
+
+\def\nmathchardef#1[#2,#3#4,#5]{{%
+   \ifnum\the\catcode`#3=11
+      \count0=\expandafter\the\csname #3#4fam\endcsname
+      \else
+         \count0=#3#4
+         \fi
+   \multiply\count0 by 256
+   \advance\count0 by #5
+   \count1=#2 \multiply\count1 by 4096
+   \advance\count1 by \count0
+   \global\mathchardef#1\count1}\ignorespaces}
+
+%% ordinary characters
+% rm
+\nmathchardef\mhyphen[0,0,"2D]               % mathmode hyphen
+% symbol
+\nmathchardef\ts[0,2,"02]                    % timing slot (\times)
+% bf
+\nmathchardef\colonb[0,bf,"3A]               % bold colon
+\nmathchardef\ldup[0,bf,"5B]                 % bold left bracket
+\nmathchardef\rdup[0,bf,"5D]                 % bold right bracket
+% bold symbol
+\nmathchardef\oplusb[2,bcal,"08]
+\nmathchardef\otimesb[2,bcal,"0A]
+\nmathchardef\timesb[2,bcal,"02]
+\nmathchardef\ltrunc[0,bcal,"68]
+\nmathchardef\rtrunc[0,bcal,"69]
+\nmathchardef\triangleb[2,bcal,"34]          % bold triangle
+% small symbol
+\nmathchardef\nothing[0,smallcal,"3B]        % smaller \emptyset
+\nmathchardef\smallbullet[0,smallcal,"0F]    % smaller \bullet
+\nmathchardef\gm[0,smallcal,"02]             % grid mark
+% small rm
+\nmathchardef\start[0,smallrm,"23]           % smaller \#
+\nmathchardef\stop[0,smallrm,"25]            % smaller \%
+\nmathchardef\smallplus[0,smallrm,"2B]       % smaller +
+
+\def\-{\ifmmode \mhyphen \else -\fi}
+
+
+%% the following put ipa supers and presupers on ipa symbols (or
+%% on rm or sl symbols): ipsl is chosen if there is a non-zero
+%% font slant dimension, else iprm is chosen
+%%%%%%%%%
+
+%% \O b puts w superscript on b,  \O[y]b puts y superscript on b
+%\newcount\currfam
+%\catcode`@=11
+%\def\O{\expandafter\currfam=\fam\the\font
+%   \futurelet\temp\O@}
+%\def\O@{\ifx\temp[\let\next\O@@\else\let\next\O@@@\fi\next}
+%\def\O@@[#1]#2{$\fam\currfam #2^{\scriptscriptstyle #1}$%
+%   \dimtempa=-5\fontdimen1\font \advance\dimtempa by -.06ex
+%   \kern\dimtempa}
+%\def\O@@@{\O@@[w]}
+
+\resetatcatcode
diff --git a/Master/texmf-dist/doc/generic/expex/source/example1.tex b/Master/texmf-dist/doc/generic/expex/source/example1.tex
new file mode 100644
index 00000000000..dd3e8692300
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/example1.tex
@@ -0,0 +1,57 @@
+
+\introsec{ Examples and examples with parts}
+
+\codedisplay
+Example (\nextx) is well-known from the literature on parasitic
+gaps.  Here we are concerned with example formatting, not with the
+interesting syntax.
+
+\ex
+I wonder which article John filed {\sl t\/} without reading {\sl e}.
+\xe
+It is beyond the scope of this investigation to determine exactly why
+John did not read the article.
+
+Multipart examples are equally straightforward.
+
+\pex Two examples of parasitic gaps.
+\a He is the man that John did not interview {\sl e\/} before
+he gave the job to {\sl e}.
+\a He is someone who John expected {\sl e\/} to be successful
+though believing {\sl e\/} to be incompetent.
+\xe
+Here, we can speculate on why John did not do an interview before
+recommending the person for a job.  It is likely that the person
+was a crony of John.  In (\lastx b), perhaps John knew that
+the ``someone'' went to prep school with the owner of the
+business.|endcodedisplay
+
+\framedisplay
+\vskip\lingaboveexskip
+Example (\nextx) is well-known from the literature on parasitic
+gaps.  Here we are concerned with example formatting, not with the
+interesting syntax.
+
+\ex
+I wonder which article John filed {\sl t\/} without reading {\sl e}.
+\xe
+It is beyond the scope of this investigation to determine exactly why
+John did not read the article.
+
+Multipart examples are equally straightforward.
+
+\pex Two examples of parasitic gaps.
+\a He is the man that John did not interview {\sl e\/} before
+he gave the job to {\sl e}.
+\a He is someone who John expected {\sl e\/} to be successful
+though believing {\sl e\/} to be incompetent.
+\xe
+Here, we can speculate on why John did not do an interview before
+recommending the person for a job.  It is likely that the person
+was a crony of John.  In (\lastx b), perhaps John knew that
+the ``someone'' went to prep school with the owner of the
+business.
+\vskip\lingbelowexskip
+\endframedisplay
+
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/example2.tex b/Master/texmf-dist/doc/generic/expex/source/example2.tex
new file mode 100644
index 00000000000..584d2ba27d5
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/example2.tex
@@ -0,0 +1,53 @@
+
+\vfil\eject
+\introsec{Named reference}
+
+\codedisplay
+If examples and parts of examples are tagged, they can be
+referred to by name.
+
+\pex<pg>
+\a This is the man that John interviewed {\sl e\/} before
+telling you that you should give the job to~{\sl e}.
+\a<A> This is someone who John expected {\sl e\/} to be successful
+though believing {\sl e\/} to be incompetent.
+\xe
+
+Now, names can be used.  The name/reference pairs can be written
+to a file, making forward reference possible and backwards
+reference at a distance reliable.  You can refer to part
+\getref{pg.A} of example (\getref{pg}), or (\getfullref{pg.A}).
+
+If you use a tag that has not been defined, {\sl ExPex\/} will
+let you know. If you try to reference a name which has no
+reference, \getref{pg.B} for example, a warning will be issued
+and the (bracketed) tag printed as shown at the beginning of this
+sentence.  If you try to tag a part of an example which has no
+tag, {\sl ExPex\/} will let you know about that as well.
+|endcodedisplay
+
+\framedisplay~
+\bigskip
+If examples and parts of examples are tagged, they can be
+referred to by name.
+
+\pex<pg>
+\a This is the man that John interviewed {\sl e\/} before
+telling you that you should give the job to~{\sl e}.
+\a<A> This is someone who John expected {\sl e\/} to be successful
+though believing {\sl e\/} to be incompetent.
+\xe
+
+Now, names can be used.  The name/reference pairs can be written
+to a file, making forward reference possible and backwards
+reference at a distance reliable.  You can refer to part
+\getref{pg.A} of example (\getref{pg}), or (\getfullref{pg.A}).
+
+If you use a tag that has not been defined, {\sl ExPex\/} will
+let you know. If you try to reference a name which has no
+reference, \getref{pg.B} for example, a warning will be issued
+and the (bracketed) tag printed as shown at the beginning of this
+sentence.  If you try to tag a part of an example which has no
+tag, {\sl ExPex\/} will let you know about that as well.
+\bigskip
+\endframedisplay
diff --git a/Master/texmf-dist/doc/generic/expex/source/example3.tex b/Master/texmf-dist/doc/generic/expex/source/example3.tex
new file mode 100644
index 00000000000..365d472ca09
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/example3.tex
@@ -0,0 +1,48 @@
+\vfil\eject
+\introsec{Glosses}
+\medskip
+
+\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
+\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 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
+\framedisplay~
+\ex
+\begingl
+\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
+\endframedisplay
+
diff --git a/Master/texmf-dist/doc/generic/expex/source/example4.tex b/Master/texmf-dist/doc/generic/expex/source/example4.tex
new file mode 100644
index 00000000000..185dcca35ca
--- /dev/null
+++ b/Master/texmf-dist/doc/generic/expex/source/example4.tex
@@ -0,0 +1,61 @@
+
+\vfil\eject
+\introsec{Parameters}
+
+
+\codedisplay
+\pex[interpartskip=3ex]
+\a
+\begingl
+\gla pwa- min -kwa -pun//
+\glb Neg V Agr Tns //
+\glc {} give 2pl{\sc nom}.3pl{\sc acc} preterit //
+\glft `you (pl) didn't give them (something)'//
+\endgl
+\a
+\begingl[everygl=\openup.5ex,everygla=,everyglb=,
+   everyglft=\it,aboveglftskip=1.5ex]
+\gla pwa- min -kwa -pun//
+\glb Neg V Agr Tns //
+\glc {} give 2pl{\sc nom}.3pl{\sc acc} preterit //
+\glft `you (pl) didn't give them (something)'//
+\endgl
+\a
+\begingl[everygl=,everygla=\bf,everyglb=\it,
+   everyglft=,aboveglftskip=0pt]
+\gla pwa- min -kwa -pun //
+\glb Neg V Agr Tns //
+\glc {} give 2pl{\sc nom}.3pl{\sc acc} preterit //
+\glft `you (pl) didn't give them (something)'//
+\endgl
+\xe
+|endcodedisplay
+\framedisplay~
+\pex[interpartskip=3ex]
+\a
+\begingl
+\gla pwa- min -kwa -pun//
+\glb Neg V Agr Tns //
+\glc {} give 2pl{\sc nom}.3pl{\sc acc} preterit //
+\glft `you (pl) didn't give them (something)'//
+\endgl
+\a
+\begingl[everygl=\openup.5ex,everygla=,everyglb=,
+   everyglft=\it,aboveglftskip=1.5ex]
+\gla pwa- min -kwa -pun//
+\glb Neg V Agr Tns //
+\glc {} give 2pl{\sc nom}.3pl{\sc acc} preterit //
+\glft `you (pl) didn't give them (something)'//
+\endgl
+\a
+\begingl[everygl=,everygla=\bf,everyglb=\it,
+   everyglft=,aboveglftskip=0pt]
+\gla pwa- min -kwa -pun //
+\glb Neg V Agr Tns //
+\glc {} give 2pl{\sc nom}.3pl{\sc acc} preterit //
+\glft `you (pl) didn't give them (something)'//
+\endgl
+\xe
+\endframedisplay
+
+
diff --git a/Master/texmf-dist/tex/generic/expex/expex.tex b/Master/texmf-dist/tex/generic/expex/expex.tex
index 93ce6bb40cd..8174cdff4b9 100644
--- a/Master/texmf-dist/tex/generic/expex/expex.tex
+++ b/Master/texmf-dist/tex/generic/expex/expex.tex
@@ -1,5 +1,5 @@
 \def\ExPexMessage
-   {2013/07/27 v4.1c ExPex linguistics example formatter (JF)}
+   {2013/07/29 v4.1d ExPex linguistics example formatter (JF)}
 % -------------------------------------------------------
 % jf 2011/12/09  (v4.0a)
 %  1) fixed bug in how exceptional gla items are detected
@@ -19,13 +19,16 @@
 %  1) added \let\pageno=\c@page to LaTex specializations
 % jf 2013/06/27  (v4.1b)
 %  1) fixed bug in skip over \glft entries
-% jf 2013/07/27
-%  1) LaTex \include/\includeonly mechanism now works for \excnt
+% jf 2013/07/27  (v4.1c)
+%  1) LaTex \includeonly mechanism support
+% jf 2013/07/29  (v4.1d)
+%  1) made \includeonly mechanism compatible with hyperref, etc.
 % --------------------------------------------------------
 \edef\resetatcatcode{\catcode`\noexpand\@\the\catcode`\@\relax}
 \catcode`\@=11\relax
 \ifx\XKeyValLoaded\endinput \else
    \input xkeyval \fi
+\newcount\excnt
 \ifx\ProvidesFile\@undefined
       \message{\ExPexMessage}
    \else
@@ -33,10 +36,9 @@
       \@addtofilelist{expex.tex}
       \let\it=\itshape
       \let\pageno=\c@page
-% 2013/07/27
-      \g@addto@macro\cl@@ckpt
-         {\immediate\write\@partaux{\string\excnt=\the\excnt}}
-%
+% 2013/07/29
+      \let\c@excnt=\excnt
+      \g@addto@macro\cl@@ckpt{\@elt{excnt}}
    \fi
 %! define eplain primitives, if necessary
 \ifx\eplain\@undefined  % eplain stuff
@@ -139,8 +141,7 @@
 \newdimen\epd@a
 % \newdimen\epd@b not yet needed
 %------ \ex -----
-\newcount\excnt
-\excnt=1
+\excnt=1   % \excnt created early, before LaTex specializations
 \newbox\numbox
 \newdimen\epd@numright
 \newif\if@specialexno