From 7e1a1d0c8983628b8faba8085219111ac7482cc7 Mon Sep 17 00:00:00 2001
From: Fred Drake <fdrake@acm.org>
Date: Tue, 29 Aug 2000 06:08:06 +0000
Subject: These files are not part of the current plan.

---
 Doc/sgml/catalog            |   7 --
 Doc/sgml/iso/ISOamsa        |  66 ----------
 Doc/sgml/iso/ISOamsb        |  52 --------
 Doc/sgml/iso/ISOamsc        |  20 ---
 Doc/sgml/iso/ISOamsn        |  70 -----------
 Doc/sgml/iso/ISOamso        |  29 -----
 Doc/sgml/iso/ISOamsr        |  94 --------------
 Doc/sgml/iso/ISObox         |  62 ---------
 Doc/sgml/iso/ISOcyr1        |  77 ------------
 Doc/sgml/iso/ISOcyr2        |  36 ------
 Doc/sgml/iso/ISOdia         |  24 ----
 Doc/sgml/iso/ISOgrk1        |  59 ---------
 Doc/sgml/iso/ISOgrk2        |  30 -----
 Doc/sgml/iso/ISOgrk3        |  53 --------
 Doc/sgml/iso/ISOgrk4        |  53 --------
 Doc/sgml/iso/ISOlat1        |  72 -----------
 Doc/sgml/iso/ISOlat2        | 131 -------------------
 Doc/sgml/iso/ISOnum         |  91 --------------
 Doc/sgml/iso/ISOpub         | 100 ---------------
 Doc/sgml/iso/ISOtech        |  73 -----------
 Doc/sgml/iso/catalog        |  39 ------
 Doc/sgml/oasis/catalog      |   1 -
 Doc/sgml/oasis/exchange.txt | 301 --------------------------------------------
 Doc/sgml/python.dtd         |  52 --------
 Doc/sgml/version.ent        |   2 -
 25 files changed, 1594 deletions(-)
 delete mode 100644 Doc/sgml/catalog
 delete mode 100644 Doc/sgml/iso/ISOamsa
 delete mode 100644 Doc/sgml/iso/ISOamsb
 delete mode 100644 Doc/sgml/iso/ISOamsc
 delete mode 100644 Doc/sgml/iso/ISOamsn
 delete mode 100644 Doc/sgml/iso/ISOamso
 delete mode 100644 Doc/sgml/iso/ISOamsr
 delete mode 100644 Doc/sgml/iso/ISObox
 delete mode 100644 Doc/sgml/iso/ISOcyr1
 delete mode 100644 Doc/sgml/iso/ISOcyr2
 delete mode 100644 Doc/sgml/iso/ISOdia
 delete mode 100644 Doc/sgml/iso/ISOgrk1
 delete mode 100644 Doc/sgml/iso/ISOgrk2
 delete mode 100644 Doc/sgml/iso/ISOgrk3
 delete mode 100644 Doc/sgml/iso/ISOgrk4
 delete mode 100644 Doc/sgml/iso/ISOlat1
 delete mode 100644 Doc/sgml/iso/ISOlat2
 delete mode 100644 Doc/sgml/iso/ISOnum
 delete mode 100644 Doc/sgml/iso/ISOpub
 delete mode 100644 Doc/sgml/iso/ISOtech
 delete mode 100644 Doc/sgml/iso/catalog
 delete mode 100644 Doc/sgml/oasis/catalog
 delete mode 100644 Doc/sgml/oasis/exchange.txt
 delete mode 100644 Doc/sgml/python.dtd
 delete mode 100644 Doc/sgml/version.ent

diff --git a/Doc/sgml/catalog b/Doc/sgml/catalog
deleted file mode 100644
index aeae92c..0000000
--- a/Doc/sgml/catalog
+++ /dev/null
@@ -1,7 +0,0 @@
--- SGML-Open-style catalog for the Python documentation system --
-
-CATALOG	"iso/catalog"
-CATALOG	"oasis/catalog"
-
-PUBLIC  "+//IDN python.org//DTD Python Documentation 1.0//EN" "python.dtd"
-PUBLIC  "+//IDN python.org//ENTITIES Python Version//EN" "version.ent"
diff --git a/Doc/sgml/iso/ISOamsa b/Doc/sgml/iso/ISOamsa
deleted file mode 100644
index b77154c..0000000
--- a/Doc/sgml/iso/ISOamsa
+++ /dev/null
@@ -1,66 +0,0 @@
-<!-- (C) International Organization for Standardization 1986
-     Permission to copy in any form is granted for use with
-     conforming SGML systems and applications as defined in
-     ISO 8879, provided this notice is included in all copies.
--->
-<!-- Character entity set. Typical invocation:
-     <!ENTITY % ISOamsa PUBLIC
-       "ISO 8879:1986//ENTITIES Added Math Symbols: Arrow Relations//EN">
-     %ISOamsa;
--->
-<!ENTITY cularr SDATA "[cularr]"--/curvearrowleft A: left curved arrow -->
-<!ENTITY curarr SDATA "[curarr]"--/curvearrowright A: rt curved arrow -->
-<!ENTITY dArr   SDATA "[dArr  ]"--/Downarrow A: down dbl arrow -->
-<!ENTITY darr2  SDATA "[darr2 ]"--/downdownarrows A: two down arrows -->
-<!ENTITY dharl  SDATA "[dharl ]"--/downleftharpoon A: dn harpoon-left -->
-<!ENTITY dharr  SDATA "[dharr ]"--/downrightharpoon A: down harpoon-rt -->
-<!ENTITY lAarr  SDATA "[lAarr ]"--/Lleftarrow A: left triple arrow -->
-<!ENTITY Larr   SDATA "[Larr  ]"--/twoheadleftarrow A:-->
-<!ENTITY larr2  SDATA "[larr2 ]"--/leftleftarrows A: two left arrows -->
-<!ENTITY larrhk SDATA "[larrhk]"--/hookleftarrow A: left arrow-hooked -->
-<!ENTITY larrlp SDATA "[larrlp]"--/looparrowleft A: left arrow-looped -->
-<!ENTITY larrtl SDATA "[larrtl]"--/leftarrowtail A: left arrow-tailed -->
-<!ENTITY lhard  SDATA "[lhard ]"--/leftharpoondown A: l harpoon-down -->
-<!ENTITY lharu  SDATA "[lharu ]"--/leftharpoonup A: left harpoon-up -->
-<!ENTITY hArr   SDATA "[hArr  ]"--/Leftrightarrow A: l&r dbl arrow -->
-<!ENTITY harr   SDATA "[harr  ]"--/leftrightarrow A: l&r arrow -->
-<!ENTITY lrarr2 SDATA "[lrarr2]"--/leftrightarrows A: l arr over r arr -->
-<!ENTITY rlarr2 SDATA "[rlarr2]"--/rightleftarrows A: r arr over l arr -->
-<!ENTITY harrw  SDATA "[harrw ]"--/leftrightsquigarrow A: l&r arr-wavy -->
-<!ENTITY rlhar2 SDATA "[rlhar2]"--/rightleftharpoons A: r harp over l -->
-<!ENTITY lrhar2 SDATA "[lrhar2]"--/leftrightharpoons A: l harp over r -->
-<!ENTITY lsh    SDATA "[lsh   ]"--/Lsh A:-->
-<!ENTITY map    SDATA "[map   ]"--/mapsto A:-->
-<!ENTITY mumap  SDATA "[mumap ]"--/multimap A:-->
-<!ENTITY nearr  SDATA "[nearr ]"--/nearrow A: NE pointing arrow -->
-<!ENTITY nlArr  SDATA "[nlArr ]"--/nLeftarrow A: not implied by -->
-<!ENTITY nlarr  SDATA "[nlarr ]"--/nleftarrow A: not left arrow -->
-<!ENTITY nhArr  SDATA "[nhArr ]"--/nLeftrightarrow A: not l&r dbl arr -->
-<!ENTITY nharr  SDATA "[nharr ]"--/nleftrightarrow A: not l&r arrow -->
-<!ENTITY nrarr  SDATA "[nrarr ]"--/nrightarrow A: not right arrow -->
-<!ENTITY nrArr  SDATA "[nrArr ]"--/nRightarrow A: not implies -->
-<!ENTITY nwarr  SDATA "[nwarr ]"--/nwarrow A: NW pointing arrow -->
-<!ENTITY olarr  SDATA "[olarr ]"--/circlearrowleft A: l arr in circle -->
-<!ENTITY orarr  SDATA "[orarr ]"--/circlearrowright A: r arr in circle -->
-<!ENTITY rAarr  SDATA "[rAarr ]"--/Rrightarrow A: right triple arrow -->
-<!ENTITY Rarr   SDATA "[Rarr  ]"--/twoheadrightarrow A:-->
-<!ENTITY rarr2  SDATA "[rarr2 ]"--/rightrightarrows A: two rt arrows -->
-<!ENTITY rarrhk SDATA "[rarrhk]"--/hookrightarrow A: rt arrow-hooked -->
-<!ENTITY rarrlp SDATA "[rarrlp]"--/looparrowright A: rt arrow-looped -->
-<!ENTITY rarrtl SDATA "[rarrtl]"--/rightarrowtail A: rt arrow-tailed -->
-<!ENTITY rarrw  SDATA "[rarrw ]"--/squigarrowright A: rt arrow-wavy -->
-<!ENTITY rhard  SDATA "[rhard ]"--/rightharpoondown A: rt harpoon-down -->
-<!ENTITY rharu  SDATA "[rharu ]"--/rightharpoonup A: rt harpoon-up -->
-<!ENTITY rsh    SDATA "[rsh   ]"--/Rsh A:-->
-<!ENTITY drarr  SDATA "[drarr ]"--/searrow A: downward rt arrow -->
-<!ENTITY dlarr  SDATA "[dlarr ]"--/swarrow A: downward l arrow -->
-<!ENTITY uArr   SDATA "[uArr  ]"--/Uparrow A: up dbl arrow -->
-<!ENTITY uarr2  SDATA "[uarr2 ]"--/upuparrows A: two up arrows -->
-<!ENTITY vArr   SDATA "[vArr  ]"--/Updownarrow A: up&down dbl arrow -->
-<!ENTITY varr   SDATA "[varr  ]"--/updownarrow A: up&down arrow -->
-<!ENTITY uharl  SDATA "[uharl ]"--/upleftharpoon A: up harpoon-left -->
-<!ENTITY uharr  SDATA "[uharr ]"--/uprightharpoon A: up harp-r-->
-<!ENTITY xlArr  SDATA "[xlArr ]"--/Longleftarrow A: long l dbl arrow -->
-<!ENTITY xhArr  SDATA "[xhArr ]"--/Longleftrightarrow A: long l&r dbl arr-->
-<!ENTITY xharr  SDATA "[xharr ]"--/longleftrightarrow A: long l&r arr -->
-<!ENTITY xrArr  SDATA "[xrArr ]"--/Longrightarrow A: long rt dbl arr -->
diff --git a/Doc/sgml/iso/ISOamsb b/Doc/sgml/iso/ISOamsb
deleted file mode 100644
index 43944a7..0000000
--- a/Doc/sgml/iso/ISOamsb
+++ /dev/null
@@ -1,52 +0,0 @@
-<!-- (C) International Organization for Standardization 1986
-     Permission to copy in any form is granted for use with
-     conforming SGML systems and applications as defined in
-     ISO 8879, provided this notice is included in all copies.
--->
-<!-- Character entity set. Typical invocation:
-     <!ENTITY % ISOamsb PUBLIC
-       "ISO 8879:1986//ENTITIES Added Math Symbols: Binary Operators//EN">
-     %ISOamsb;
--->
-<!ENTITY amalg  SDATA "[amalg ]"--/amalg B: amalgamation or coproduct-->
-<!ENTITY Barwed SDATA "[Barwed]"--/doublebarwedge B: log and, dbl bar-->
-<!ENTITY barwed SDATA "[barwed]"--/barwedge B: logical and, bar above-->
-<!ENTITY Cap    SDATA "[Cap   ]"--/Cap /doublecap B: dbl intersection-->
-<!ENTITY Cup    SDATA "[Cup   ]"--/Cup /doublecup B: dbl union-->
-<!ENTITY cuvee  SDATA "[cuvee ]"--/curlyvee B: curly logical or-->
-<!ENTITY cuwed  SDATA "[cuwed ]"--/curlywedge B: curly logical and-->
-<!ENTITY diam   SDATA "[diam  ]"--/diamond B: open diamond-->
-<!ENTITY divonx SDATA "[divonx]"--/divideontimes B: division on times-->
-<!ENTITY intcal SDATA "[intcal]"--/intercal B: intercal-->
-<!ENTITY lthree SDATA "[lthree]"--/leftthreetimes B:-->
-<!ENTITY ltimes SDATA "[ltimes]"--/ltimes B: times sign, left closed-->
-<!ENTITY minusb SDATA "[minusb]"--/boxminus B: minus sign in box-->
-<!ENTITY oast   SDATA "[oast  ]"--/circledast B: asterisk in circle-->
-<!ENTITY ocir   SDATA "[ocir  ]"--/circledcirc B: open dot in circle-->
-<!ENTITY odash  SDATA "[odash ]"--/circleddash B: hyphen in circle-->
-<!ENTITY odot   SDATA "[odot  ]"--/odot B: middle dot in circle-->
-<!ENTITY ominus SDATA "[ominus]"--/ominus B: minus sign in circle-->
-<!ENTITY oplus  SDATA "[oplus ]"--/oplus B: plus sign in circle-->
-<!ENTITY osol   SDATA "[osol  ]"--/oslash B: solidus in circle-->
-<!ENTITY otimes SDATA "[otimes]"--/otimes B: multiply sign in circle-->
-<!ENTITY plusb  SDATA "[plusb ]"--/boxplus B: plus sign in box-->
-<!ENTITY plusdo SDATA "[plusdo]"--/dotplus B: plus sign, dot above-->
-<!ENTITY rthree SDATA "[rthree]"--/rightthreetimes B:-->
-<!ENTITY rtimes SDATA "[rtimes]"--/rtimes B: times sign, right closed-->
-<!ENTITY sdot   SDATA "[sdot  ]"--/cdot B: small middle dot-->
-<!ENTITY sdotb  SDATA "[sdotb ]"--/dotsquare /boxdot B: small dot in box-->
-<!ENTITY setmn  SDATA "[setmn ]"--/setminus B: reverse solidus-->
-<!ENTITY sqcap  SDATA "[sqcap ]"--/sqcap B: square intersection-->
-<!ENTITY sqcup  SDATA "[sqcup ]"--/sqcup B: square union-->
-<!ENTITY ssetmn SDATA "[ssetmn]"--/smallsetminus B: sm reverse solidus-->
-<!ENTITY sstarf SDATA "[sstarf]"--/star B: small star, filled-->
-<!ENTITY timesb SDATA "[timesb]"--/boxtimes B: multiply sign in box-->
-<!ENTITY top    SDATA "[top   ]"--/top B: inverted perpendicular-->
-<!ENTITY uplus  SDATA "[uplus ]"--/uplus B: plus sign in union-->
-<!ENTITY wreath SDATA "[wreath]"--/wr B: wreath product-->
-<!ENTITY xcirc  SDATA "[xcirc ]"--/bigcirc B: large circle-->
-<!ENTITY xdtri  SDATA "[xdtri ]"--/bigtriangledown B: big dn tri, open-->
-<!ENTITY xutri  SDATA "[xutri ]"--/bigtriangleup B: big up tri, open-->
-<!ENTITY coprod SDATA "[coprod]"--/coprod L: coproduct operator-->
-<!ENTITY prod   SDATA "[prod  ]"--/prod L: product operator-->
-<!ENTITY sum    SDATA "[sum   ]"--/sum L: summation operator-->
diff --git a/Doc/sgml/iso/ISOamsc b/Doc/sgml/iso/ISOamsc
deleted file mode 100644
index 06222d5..0000000
--- a/Doc/sgml/iso/ISOamsc
+++ /dev/null
@@ -1,20 +0,0 @@
-<!-- (C) International Organization for Standardization 1986
-     Permission to copy in any form is granted for use with
-     conforming SGML systems and applications as defined in
-     ISO 8879, provided this notice is included in all copies.
--->
-<!-- Character entity set. Typical invocation:
-     <!ENTITY % ISOamsc PUBLIC
-       "ISO 8879:1986//ENTITIES Added Math Symbols: Delimiters//EN">
-     %ISOamsc;
--->
-<!ENTITY rceil  SDATA "[rceil ]"--/rceil C: right ceiling-->
-<!ENTITY rfloor SDATA "[rfloor]"--/rfloor C: right floor-->
-<!ENTITY rpargt SDATA "[rpargt]"--/rightparengtr C: right paren, gt-->
-<!ENTITY urcorn SDATA "[urcorn]"--/urcorner C: upper right corner-->
-<!ENTITY drcorn SDATA "[drcorn]"--/lrcorner C: downward right corner-->
-<!ENTITY lceil  SDATA "[lceil ]"--/lceil O: left ceiling-->
-<!ENTITY lfloor SDATA "[lfloor]"--/lfloor O: left floor-->
-<!ENTITY lpargt SDATA "[lpargt]"--/leftparengtr O: left parenthesis, gt-->
-<!ENTITY ulcorn SDATA "[ulcorn]"--/ulcorner O: upper left corner-->
-<!ENTITY dlcorn SDATA "[dlcorn]"--/llcorner O: downward left corner-->
diff --git a/Doc/sgml/iso/ISOamsn b/Doc/sgml/iso/ISOamsn
deleted file mode 100644
index 0c8327a..0000000
--- a/Doc/sgml/iso/ISOamsn
+++ /dev/null
@@ -1,70 +0,0 @@
-<!-- (C) International Organization for Standardization 1986
-     Permission to copy in any form is granted for use with
-     conforming SGML systems and applications as defined in
-     ISO 8879, provided this notice is included in all copies.
--->
-<!-- Character entity set. Typical invocation:
-     <!ENTITY % ISOamsn PUBLIC
-       "ISO 8879:1986//ENTITIES
-        Added Math Symbols: Negated Relations//EN">
-     %ISOamsn;
--->
-<!ENTITY gnap   SDATA "[gnap  ]"--/gnapprox N: greater, not approximate-->
-<!ENTITY gne    SDATA "[gne   ]"--/gneq N: greater, not equals-->
-<!ENTITY gnE    SDATA "[gnE   ]"--/gneqq N: greater, not dbl equals-->
-<!ENTITY gnsim  SDATA "[gnsim ]"--/gnsim N: greater, not similar-->
-<!ENTITY gvnE   SDATA "[gvnE  ]"--/gvertneqq N: gt, vert, not dbl eq-->
-<!ENTITY lnap   SDATA "[lnap  ]"--/lnapprox N: less, not approximate-->
-<!ENTITY lnE    SDATA "[lnE   ]"--/lneqq N: less, not double equals-->
-<!ENTITY lne    SDATA "[lne   ]"--/lneq N: less, not equals-->
-<!ENTITY lnsim  SDATA "[lnsim ]"--/lnsim N: less, not similar-->
-<!ENTITY lvnE   SDATA "[lvnE  ]"--/lvertneqq N: less, vert, not dbl eq-->
-<!ENTITY nap    SDATA "[nap   ]"--/napprox N: not approximate-->
-<!ENTITY ncong  SDATA "[ncong ]"--/ncong N: not congruent with-->
-<!ENTITY nequiv SDATA "[nequiv]"--/nequiv N: not identical with-->
-<!ENTITY ngE    SDATA "[ngE   ]"--/ngeqq N: not greater, dbl equals-->
-<!ENTITY nge    SDATA "[nge   ]"--/ngeq N: not greater-than-or-equal-->
-<!ENTITY nges   SDATA "[nges  ]"--/ngeqslant N: not gt-or-eq, slanted-->
-<!ENTITY ngt    SDATA "[ngt   ]"--/ngtr N: not greater-than-->
-<!ENTITY nle    SDATA "[nle   ]"--/nleq N: not less-than-or-equal-->
-<!ENTITY nlE    SDATA "[nlE   ]"--/nleqq N: not less, dbl equals-->
-<!ENTITY nles   SDATA "[nles  ]"--/nleqslant N: not less-or-eq, slant-->
-<!ENTITY nlt    SDATA "[nlt   ]"--/nless N: not less-than-->
-<!ENTITY nltri  SDATA "[nltri ]"--/ntriangleleft N: not left triangle-->
-<!ENTITY nltrie SDATA "[nltrie]"--/ntrianglelefteq N: not l tri, eq-->
-<!ENTITY nmid   SDATA "[nmid  ]"--/nmid-->
-<!ENTITY npar   SDATA "[npar  ]"--/nparallel N: not parallel-->
-<!ENTITY npr    SDATA "[npr   ]"--/nprec N: not precedes-->
-<!ENTITY npre   SDATA "[npre  ]"--/npreceq N: not precedes, equals-->
-<!ENTITY nrtri  SDATA "[nrtri ]"--/ntriangleright N: not rt triangle-->
-<!ENTITY nrtrie SDATA "[nrtrie]"--/ntrianglerighteq N: not r tri, eq-->
-<!ENTITY nsc    SDATA "[nsc   ]"--/nsucc N: not succeeds-->
-<!ENTITY nsce   SDATA "[nsce  ]"--/nsucceq N: not succeeds, equals-->
-<!ENTITY nsim   SDATA "[nsim  ]"--/nsim N: not similar-->
-<!ENTITY nsime  SDATA "[nsime ]"--/nsimeq N: not similar, equals-->
-<!ENTITY nsmid  SDATA "[nsmid ]"--/nshortmid-->
-<!ENTITY nspar  SDATA "[nspar ]"--/nshortparallel N: not short par-->
-<!ENTITY nsub   SDATA "[nsub  ]"--/nsubset N: not subset-->
-<!ENTITY nsube  SDATA "[nsube ]"--/nsubseteq N: not subset, equals-->
-<!ENTITY nsubE  SDATA "[nsubE ]"--/nsubseteqq N: not subset, dbl eq-->
-<!ENTITY nsup   SDATA "[nsup  ]"--/nsupset N: not superset-->
-<!ENTITY nsupE  SDATA "[nsupE ]"--/nsupseteqq N: not superset, dbl eq-->
-<!ENTITY nsupe  SDATA "[nsupe ]"--/nsupseteq N: not superset, equals-->
-<!ENTITY nvdash SDATA "[nvdash]"--/nvdash N: not vertical, dash-->
-<!ENTITY nvDash SDATA "[nvDash]"--/nvDash N: not vertical, dbl dash-->
-<!ENTITY nVDash SDATA "[nVDash]"--/nVDash N: not dbl vert, dbl dash-->
-<!ENTITY nVdash SDATA "[nVdash]"--/nVdash N: not dbl vertical, dash-->
-<!ENTITY prnap  SDATA "[prnap ]"--/precnapprox N: precedes, not approx-->
-<!ENTITY prnE   SDATA "[prnE  ]"--/precneqq N: precedes, not dbl eq-->
-<!ENTITY prnsim SDATA "[prnsim]"--/precnsim N: precedes, not similar-->
-<!ENTITY scnap  SDATA "[scnap ]"--/succnapprox N: succeeds, not approx-->
-<!ENTITY scnE   SDATA "[scnE  ]"--/succneqq N: succeeds, not dbl eq-->
-<!ENTITY scnsim SDATA "[scnsim]"--/succnsim N: succeeds, not similar-->
-<!ENTITY subne  SDATA "[subne ]"--/subsetneq N: subset, not equals-->
-<!ENTITY subnE  SDATA "[subnE ]"--/subsetneqq N: subset, not dbl eq-->
-<!ENTITY supne  SDATA "[supne ]"--/supsetneq N: superset, not equals-->
-<!ENTITY supnE  SDATA "[supnE ]"--/supsetneqq N: superset, not dbl eq-->
-<!ENTITY vsubnE SDATA "[vsubnE]"--/subsetneqq N: subset not dbl eq, var-->
-<!ENTITY vsubne SDATA "[vsubne]"--/subsetneq N: subset, not eq, var-->
-<!ENTITY vsupne SDATA "[vsupne]"--/supsetneq N: superset, not eq, var-->
-<!ENTITY vsupnE SDATA "[vsupnE]"--/supsetneqq N: super not dbl eq, var-->
diff --git a/Doc/sgml/iso/ISOamso b/Doc/sgml/iso/ISOamso
deleted file mode 100644
index ad9b329..0000000
--- a/Doc/sgml/iso/ISOamso
+++ /dev/null
@@ -1,29 +0,0 @@
-<!-- (C) International Organization for Standardization 1986
-     Permission to copy in any form is granted for use with
-     conforming SGML systems and applications as defined in
-     ISO 8879, provided this notice is included in all copies.
--->
-<!-- Character entity set. Typical invocation:
-     <!ENTITY % ISOamso PUBLIC
-       "ISO 8879:1986//ENTITIES Added Math Symbols: Ordinary//EN">
-     %ISOamso;
--->
-<!ENTITY ang    SDATA "[ang   ]"--/angle - angle-->
-<!ENTITY angmsd SDATA "[angmsd]"--/measuredangle - angle-measured-->
-<!ENTITY beth   SDATA "[beth  ]"--/beth - beth, Hebrew-->
-<!ENTITY bprime SDATA "[bprime]"--/backprime - reverse prime-->
-<!ENTITY comp   SDATA "[comp  ]"--/complement - complement sign-->
-<!ENTITY daleth SDATA "[daleth]"--/daleth - daleth, Hebrew-->
-<!ENTITY ell    SDATA "[ell   ]"--/ell - cursive small l-->
-<!ENTITY empty  SDATA "[empty ]"--/emptyset /varnothing =small o, slash-->
-<!ENTITY gimel  SDATA "[gimel ]"--/gimel - gimel, Hebrew-->
-<!ENTITY image  SDATA "[image ]"--/Im - imaginary-->
-<!ENTITY inodot SDATA "[inodot]"--/imath =small i, no dot-->
-<!ENTITY jnodot SDATA "[jnodot]"--/jmath - small j, no dot-->
-<!ENTITY nexist SDATA "[nexist]"--/nexists - negated exists-->
-<!ENTITY oS     SDATA "[oS    ]"--/circledS - capital S in circle-->
-<!ENTITY planck SDATA "[planck]"--/hbar /hslash - Planck's over 2pi-->
-<!ENTITY real   SDATA "[real  ]"--/Re - real-->
-<!ENTITY sbsol  SDATA "[sbsol ]"--/sbs - short reverse solidus-->
-<!ENTITY vprime SDATA "[vprime]"--/varprime - prime, variant-->
-<!ENTITY weierp SDATA "[weierp]"--/wp - Weierstrass p-->
diff --git a/Doc/sgml/iso/ISOamsr b/Doc/sgml/iso/ISOamsr
deleted file mode 100644
index 3f26c34..0000000
--- a/Doc/sgml/iso/ISOamsr
+++ /dev/null
@@ -1,94 +0,0 @@
-<!-- (C) International Organization for Standardization 1986
-     Permission to copy in any form is granted for use with
-     conforming SGML systems and applications as defined in
-     ISO 8879, provided this notice is included in all copies.
--->
-<!-- Character entity set. Typical invocation:
-     <!ENTITY % ISOamsr PUBLIC
-       "ISO 8879:1986//ENTITIES Added Math Symbols: Relations//EN">
-     %ISOamsr;
--->
-<!ENTITY ape    SDATA "[ape   ]"--/approxeq R: approximate, equals-->
-<!ENTITY asymp  SDATA "[asymp ]"--/asymp R: asymptotically equal to-->
-<!ENTITY bcong  SDATA "[bcong ]"--/backcong R: reverse congruent-->
-<!ENTITY bepsi  SDATA "[bepsi ]"--/backepsilon R: such that-->
-<!ENTITY bowtie SDATA "[bowtie]"--/bowtie R:-->
-<!ENTITY bsim   SDATA "[bsim  ]"--/backsim R: reverse similar-->
-<!ENTITY bsime  SDATA "[bsime ]"--/backsimeq R: reverse similar, eq-->
-<!ENTITY bump   SDATA "[bump  ]"--/Bumpeq R: bumpy equals-->
-<!ENTITY bumpe  SDATA "[bumpe ]"--/bumpeq R: bumpy equals, equals-->
-<!ENTITY cire   SDATA "[cire  ]"--/circeq R: circle, equals-->
-<!ENTITY colone SDATA "[colone]"--/coloneq R: colon, equals-->
-<!ENTITY cuepr  SDATA "[cuepr ]"--/curlyeqprec R: curly eq, precedes-->
-<!ENTITY cuesc  SDATA "[cuesc ]"--/curlyeqsucc R: curly eq, succeeds-->
-<!ENTITY cupre  SDATA "[cupre ]"--/curlypreceq R: curly precedes, eq-->
-<!ENTITY dashv  SDATA "[dashv ]"--/dashv R: dash, vertical-->
-<!ENTITY ecir   SDATA "[ecir  ]"--/eqcirc R: circle on equals sign-->
-<!ENTITY ecolon SDATA "[ecolon]"--/eqcolon R: equals, colon-->
-<!ENTITY eDot   SDATA "[eDot  ]"--/doteqdot /Doteq R: eq, even dots-->
-<!ENTITY esdot  SDATA "[esdot ]"--/doteq R: equals, single dot above-->
-<!ENTITY efDot  SDATA "[efDot ]"--/fallingdotseq R: eq, falling dots-->
-<!ENTITY egs    SDATA "[egs   ]"--/eqslantgtr R: equal-or-gtr, slanted-->
-<!ENTITY els    SDATA "[els   ]"--/eqslantless R: eq-or-less, slanted-->
-<!ENTITY erDot  SDATA "[erDot ]"--/risingdotseq R: eq, rising dots-->
-<!ENTITY fork   SDATA "[fork  ]"--/pitchfork R: pitchfork-->
-<!ENTITY frown  SDATA "[frown ]"--/frown R: down curve-->
-<!ENTITY gap    SDATA "[gap   ]"--/gtrapprox R: greater, approximate-->
-<!ENTITY gsdot  SDATA "[gsdot ]"--/gtrdot R: greater than, single dot-->
-<!ENTITY gE     SDATA "[gE    ]"--/geqq R: greater, double equals-->
-<!ENTITY gel    SDATA "[gel   ]"--/gtreqless R: greater, equals, less-->
-<!ENTITY gEl    SDATA "[gEl   ]"--/gtreqqless R: gt, dbl equals, less-->
-<!ENTITY ges    SDATA "[ges   ]"--/geqslant R: gt-or-equal, slanted-->
-<!ENTITY Gg     SDATA "[Gg    ]"--/ggg /Gg /gggtr R: triple gtr-than-->
-<!ENTITY gl     SDATA "[gl    ]"--/gtrless R: greater, less-->
-<!ENTITY gsim   SDATA "[gsim  ]"--/gtrsim R: greater, similar-->
-<!ENTITY Gt     SDATA "[Gt    ]"--/gg R: dbl greater-than sign-->
-<!ENTITY lap    SDATA "[lap   ]"--/lessapprox R: less, approximate-->
-<!ENTITY ldot   SDATA "[ldot  ]"--/lessdot R: less than, with dot-->
-<!ENTITY lE     SDATA "[lE    ]"--/leqq R: less, double equals-->
-<!ENTITY lEg    SDATA "[lEg   ]"--/lesseqqgtr R: less, dbl eq, greater-->
-<!ENTITY leg    SDATA "[leg   ]"--/lesseqgtr R: less, eq, greater-->
-<!ENTITY les    SDATA "[les   ]"--/leqslant R: less-than-or-eq, slant-->
-<!ENTITY lg     SDATA "[lg    ]"--/lessgtr R: less, greater-->
-<!ENTITY Ll     SDATA "[Ll    ]"--/Ll /lll /llless R: triple less-than-->
-<!ENTITY lsim   SDATA "[lsim  ]"--/lesssim R: less, similar-->
-<!ENTITY Lt     SDATA "[Lt    ]"--/ll R: double less-than sign-->
-<!ENTITY ltrie  SDATA "[ltrie ]"--/trianglelefteq R: left triangle, eq-->
-<!ENTITY mid    SDATA "[mid   ]"--/mid R:-->
-<!ENTITY models SDATA "[models]"--/models R:-->
-<!ENTITY pr     SDATA "[pr    ]"--/prec R: precedes-->
-<!ENTITY prap   SDATA "[prap  ]"--/precapprox R: precedes, approximate-->
-<!ENTITY pre    SDATA "[pre   ]"--/preceq R: precedes, equals-->
-<!ENTITY prsim  SDATA "[prsim ]"--/precsim R: precedes, similar-->
-<!ENTITY rtrie  SDATA "[rtrie ]"--/trianglerighteq R: right tri, eq-->
-<!ENTITY samalg SDATA "[samalg]"--/smallamalg R: small amalg-->
-<!ENTITY sc     SDATA "[sc    ]"--/succ R: succeeds-->
-<!ENTITY scap   SDATA "[scap  ]"--/succapprox R: succeeds, approximate-->
-<!ENTITY sccue  SDATA "[sccue ]"--/succcurlyeq R: succeeds, curly eq-->
-<!ENTITY sce    SDATA "[sce   ]"--/succeq R: succeeds, equals-->
-<!ENTITY scsim  SDATA "[scsim ]"--/succsim R: succeeds, similar-->
-<!ENTITY sfrown SDATA "[sfrown]"--/smallfrown R: small down curve-->
-<!ENTITY smid   SDATA "[smid  ]"--/shortmid R:-->
-<!ENTITY smile  SDATA "[smile ]"--/smile R: up curve-->
-<!ENTITY spar   SDATA "[spar  ]"--/shortparallel R: short parallel-->
-<!ENTITY sqsub  SDATA "[sqsub ]"--/sqsubset R: square subset-->
-<!ENTITY sqsube SDATA "[sqsube]"--/sqsubseteq R: square subset, equals-->
-<!ENTITY sqsup  SDATA "[sqsup ]"--/sqsupset R: square superset-->
-<!ENTITY sqsupe SDATA "[sqsupe]"--/sqsupseteq R: square superset, eq-->
-<!ENTITY ssmile SDATA "[ssmile]"--/smallsmile R: small up curve-->
-<!ENTITY Sub    SDATA "[Sub   ]"--/Subset R: double subset-->
-<!ENTITY subE   SDATA "[subE  ]"--/subseteqq R: subset, dbl equals-->
-<!ENTITY Sup    SDATA "[Sup   ]"--/Supset R: dbl superset-->
-<!ENTITY supE   SDATA "[supE  ]"--/supseteqq R: superset, dbl equals-->
-<!ENTITY thkap  SDATA "[thkap ]"--/thickapprox R: thick approximate-->
-<!ENTITY thksim SDATA "[thksim]"--/thicksim R: thick similar-->
-<!ENTITY trie   SDATA "[trie  ]"--/triangleq R: triangle, equals-->
-<!ENTITY twixt  SDATA "[twixt ]"--/between R: between-->
-<!ENTITY vdash  SDATA "[vdash ]"--/vdash R: vertical, dash-->
-<!ENTITY Vdash  SDATA "[Vdash ]"--/Vdash R: dbl vertical, dash-->
-<!ENTITY vDash  SDATA "[vDash ]"--/vDash R: vertical, dbl dash-->
-<!ENTITY veebar SDATA "[veebar]"--/veebar R: logical or, bar below-->
-<!ENTITY vltri  SDATA "[vltri ]"--/vartriangleleft R: l tri, open, var-->
-<!ENTITY vprop  SDATA "[vprop ]"--/varpropto R: proportional, variant-->
-<!ENTITY vrtri  SDATA "[vrtri ]"--/vartriangleright R: r tri, open, var-->
-<!ENTITY Vvdash SDATA "[Vvdash]"--/Vvdash R: triple vertical, dash-->
diff --git a/Doc/sgml/iso/ISObox b/Doc/sgml/iso/ISObox
deleted file mode 100644
index 643e926..0000000
--- a/Doc/sgml/iso/ISObox
+++ /dev/null
@@ -1,62 +0,0 @@
-<!-- (C) International Organization for Standardization 1986
-     Permission to copy in any form is granted for use with
-     conforming SGML systems and applications as defined in
-     ISO 8879, provided this notice is included in all copies.
--->
-<!-- Character entity set. Typical invocation:
-     <!ENTITY % ISObox PUBLIC
-       "ISO 8879:1986//ENTITIES Box and Line Drawing//EN">
-     %ISObox;
--->
-<!-- All names are in the form: box1234, where:
-    box = constants that identify a box drawing entity.
-    1&2 = v, V, u, U, d, D, Ud, or uD, as follows:
-      v = vertical line for full height.
-      u = upper half of vertical line.
-      d = downward (lower) half of vertical line.
-    3&4 = h, H, l, L, r, R, Lr, or lR, as follows:
-      h = horizontal line for full width.
-      l = left half of horizontal line.
-      r = right half of horizontal line.
-    In all cases, an upper-case letter means a double or heavy line.
--->
-<!ENTITY boxh   SDATA "[boxh  ]"--horizontal line -->
-<!ENTITY boxv   SDATA "[boxv  ]"--vertical line-->
-<!ENTITY boxur  SDATA "[boxur ]"--upper right quadrant-->
-<!ENTITY boxul  SDATA "[boxul ]"--upper left quadrant-->
-<!ENTITY boxdl  SDATA "[boxdl ]"--lower left quadrant-->
-<!ENTITY boxdr  SDATA "[boxdr ]"--lower right quadrant-->
-<!ENTITY boxvr  SDATA "[boxvr ]"--upper and lower right quadrants-->
-<!ENTITY boxhu  SDATA "[boxhu ]"--upper left and right quadrants-->
-<!ENTITY boxvl  SDATA "[boxvl ]"--upper and lower left quadrants-->
-<!ENTITY boxhd  SDATA "[boxhd ]"--lower left and right quadrants-->
-<!ENTITY boxvh  SDATA "[boxvh ]"--all four quadrants-->
-<!ENTITY boxvR  SDATA "[boxvR ]"--upper and lower right quadrants-->
-<!ENTITY boxhU  SDATA "[boxhU ]"--upper left and right quadrants-->
-<!ENTITY boxvL  SDATA "[boxvL ]"--upper and lower left quadrants-->
-<!ENTITY boxhD  SDATA "[boxhD ]"--lower left and right quadrants-->
-<!ENTITY boxvH  SDATA "[boxvH ]"--all four quadrants-->
-<!ENTITY boxH   SDATA "[boxH  ]"--horizontal line-->
-<!ENTITY boxV   SDATA "[boxV  ]"--vertical line-->
-<!ENTITY boxUR  SDATA "[boxUR ]"--upper right quadrant-->
-<!ENTITY boxUL  SDATA "[boxUL ]"--upper left quadrant-->
-<!ENTITY boxDL  SDATA "[boxDL ]"--lower left quadrant-->
-<!ENTITY boxDR  SDATA "[boxDR ]"--lower right quadrant-->
-<!ENTITY boxVR  SDATA "[boxVR ]"--upper and lower right quadrants-->
-<!ENTITY boxHU  SDATA "[boxHU ]"--upper left and right quadrants-->
-<!ENTITY boxVL  SDATA "[boxVL ]"--upper and lower left quadrants-->
-<!ENTITY boxHD  SDATA "[boxHD ]"--lower left and right quadrants-->
-<!ENTITY boxVH  SDATA "[boxVH ]"--all four quadrants-->
-<!ENTITY boxVr  SDATA "[boxVr ]"--upper and lower right quadrants-->
-<!ENTITY boxHu  SDATA "[boxHu ]"--upper left and right quadrants-->
-<!ENTITY boxVl  SDATA "[boxVl ]"--upper and lower left quadrants-->
-<!ENTITY boxHd  SDATA "[boxHd ]"--lower left and right quadrants-->
-<!ENTITY boxVh  SDATA "[boxVh ]"--all four quadrants-->
-<!ENTITY boxuR  SDATA "[boxuR ]"--upper right quadrant-->
-<!ENTITY boxUl  SDATA "[boxUl ]"--upper left quadrant-->
-<!ENTITY boxdL  SDATA "[boxdL ]"--lower left quadrant-->
-<!ENTITY boxDr  SDATA "[boxDr ]"--lower right quadrant-->
-<!ENTITY boxUr  SDATA "[boxUr ]"--upper right quadrant-->
-<!ENTITY boxuL  SDATA "[boxuL ]"--upper left quadrant-->
-<!ENTITY boxDl  SDATA "[boxDl ]"--lower left quadrant-->
-<!ENTITY boxdR  SDATA "[boxdR ]"--lower right quadrant-->
diff --git a/Doc/sgml/iso/ISOcyr1 b/Doc/sgml/iso/ISOcyr1
deleted file mode 100644
index 97b961b..0000000
--- a/Doc/sgml/iso/ISOcyr1
+++ /dev/null
@@ -1,77 +0,0 @@
-<!-- (C) International Organization for Standardization 1986
-     Permission to copy in any form is granted for use with
-     conforming SGML systems and applications as defined in
-     ISO 8879, provided this notice is included in all copies.
--->
-<!-- Character entity set. Typical invocation:
-     <!ENTITY % ISOcyr1 PUBLIC
-       "ISO 8879:1986//ENTITIES Russian Cyrillic//EN">
-     %ISOcyr1;
--->
-<!ENTITY acy    SDATA "[acy   ]"--=small a, Cyrillic-->
-<!ENTITY Acy    SDATA "[Acy   ]"--=capital A, Cyrillic-->
-<!ENTITY bcy    SDATA "[bcy   ]"--=small be, Cyrillic-->
-<!ENTITY Bcy    SDATA "[Bcy   ]"--=capital BE, Cyrillic-->
-<!ENTITY vcy    SDATA "[vcy   ]"--=small ve, Cyrillic-->
-<!ENTITY Vcy    SDATA "[Vcy   ]"--=capital VE, Cyrillic-->
-<!ENTITY gcy    SDATA "[gcy   ]"--=small ghe, Cyrillic-->
-<!ENTITY Gcy    SDATA "[Gcy   ]"--=capital GHE, Cyrillic-->
-<!ENTITY dcy    SDATA "[dcy   ]"--=small de, Cyrillic-->
-<!ENTITY Dcy    SDATA "[Dcy   ]"--=capital DE, Cyrillic-->
-<!ENTITY iecy   SDATA "[iecy  ]"--=small ie, Cyrillic-->
-<!ENTITY IEcy   SDATA "[IEcy  ]"--=capital IE, Cyrillic-->
-<!ENTITY iocy   SDATA "[iocy  ]"--=small io, Russian-->
-<!ENTITY IOcy   SDATA "[IOcy  ]"--=capital IO, Russian-->
-<!ENTITY zhcy   SDATA "[zhcy  ]"--=small zhe, Cyrillic-->
-<!ENTITY ZHcy   SDATA "[ZHcy  ]"--=capital ZHE, Cyrillic-->
-<!ENTITY zcy    SDATA "[zcy   ]"--=small ze, Cyrillic-->
-<!ENTITY Zcy    SDATA "[Zcy   ]"--=capital ZE, Cyrillic-->
-<!ENTITY icy    SDATA "[icy   ]"--=small i, Cyrillic-->
-<!ENTITY Icy    SDATA "[Icy   ]"--=capital I, Cyrillic-->
-<!ENTITY jcy    SDATA "[jcy   ]"--=small short i, Cyrillic-->
-<!ENTITY Jcy    SDATA "[Jcy   ]"--=capital short I, Cyrillic-->
-<!ENTITY kcy    SDATA "[kcy   ]"--=small ka, Cyrillic-->
-<!ENTITY Kcy    SDATA "[Kcy   ]"--=capital KA, Cyrillic-->
-<!ENTITY lcy    SDATA "[lcy   ]"--=small el, Cyrillic-->
-<!ENTITY Lcy    SDATA "[Lcy   ]"--=capital EL, Cyrillic-->
-<!ENTITY mcy    SDATA "[mcy   ]"--=small em, Cyrillic-->
-<!ENTITY Mcy    SDATA "[Mcy   ]"--=capital EM, Cyrillic-->
-<!ENTITY ncy    SDATA "[ncy   ]"--=small en, Cyrillic-->
-<!ENTITY Ncy    SDATA "[Ncy   ]"--=capital EN, Cyrillic-->
-<!ENTITY ocy    SDATA "[ocy   ]"--=small o, Cyrillic-->
-<!ENTITY Ocy    SDATA "[Ocy   ]"--=capital O, Cyrillic-->
-<!ENTITY pcy    SDATA "[pcy   ]"--=small pe, Cyrillic-->
-<!ENTITY Pcy    SDATA "[Pcy   ]"--=capital PE, Cyrillic-->
-<!ENTITY rcy    SDATA "[rcy   ]"--=small er, Cyrillic-->
-<!ENTITY Rcy    SDATA "[Rcy   ]"--=capital ER, Cyrillic-->
-<!ENTITY scy    SDATA "[scy   ]"--=small es, Cyrillic-->
-<!ENTITY Scy    SDATA "[Scy   ]"--=capital ES, Cyrillic-->
-<!ENTITY tcy    SDATA "[tcy   ]"--=small te, Cyrillic-->
-<!ENTITY Tcy    SDATA "[Tcy   ]"--=capital TE, Cyrillic-->
-<!ENTITY ucy    SDATA "[ucy   ]"--=small u, Cyrillic-->
-<!ENTITY Ucy    SDATA "[Ucy   ]"--=capital U, Cyrillic-->
-<!ENTITY fcy    SDATA "[fcy   ]"--=small ef, Cyrillic-->
-<!ENTITY Fcy    SDATA "[Fcy   ]"--=capital EF, Cyrillic-->
-<!ENTITY khcy   SDATA "[khcy  ]"--=small ha, Cyrillic-->
-<!ENTITY KHcy   SDATA "[KHcy  ]"--=capital HA, Cyrillic-->
-<!ENTITY tscy   SDATA "[tscy  ]"--=small tse, Cyrillic-->
-<!ENTITY TScy   SDATA "[TScy  ]"--=capital TSE, Cyrillic-->
-<!ENTITY chcy   SDATA "[chcy  ]"--=small che, Cyrillic-->
-<!ENTITY CHcy   SDATA "[CHcy  ]"--=capital CHE, Cyrillic-->
-<!ENTITY shcy   SDATA "[shcy  ]"--=small sha, Cyrillic-->
-<!ENTITY SHcy   SDATA "[SHcy  ]"--=capital SHA, Cyrillic-->
-<!ENTITY shchcy SDATA "[shchcy]"--=small shcha, Cyrillic-->
-<!ENTITY SHCHcy SDATA "[SHCHcy]"--=capital SHCHA, Cyrillic-->
-<!ENTITY hardcy SDATA "[hardcy]"--=small hard sign, Cyrillic-->
-<!ENTITY HARDcy SDATA "[HARDcy]"--=capital HARD sign, Cyrillic-->
-<!ENTITY ycy    SDATA "[ycy   ]"--=small yeru, Cyrillic-->
-<!ENTITY Ycy    SDATA "[Ycy   ]"--=capital YERU, Cyrillic-->
-<!ENTITY softcy SDATA "[softcy]"--=small soft sign, Cyrillic-->
-<!ENTITY SOFTcy SDATA "[SOFTcy]"--=capital SOFT sign, Cyrillic-->
-<!ENTITY ecy    SDATA "[ecy   ]"--=small e, Cyrillic-->
-<!ENTITY Ecy    SDATA "[Ecy   ]"--=capital E, Cyrillic-->
-<!ENTITY yucy   SDATA "[yucy  ]"--=small yu, Cyrillic-->
-<!ENTITY YUcy   SDATA "[YUcy  ]"--=capital YU, Cyrillic-->
-<!ENTITY yacy   SDATA "[yacy  ]"--=small ya, Cyrillic-->
-<!ENTITY YAcy   SDATA "[YAcy  ]"--=capital YA, Cyrillic-->
-<!ENTITY numero SDATA "[numero]"--=numero sign-->
diff --git a/Doc/sgml/iso/ISOcyr2 b/Doc/sgml/iso/ISOcyr2
deleted file mode 100644
index 480b01c..0000000
--- a/Doc/sgml/iso/ISOcyr2
+++ /dev/null
@@ -1,36 +0,0 @@
-<!-- (C) International Organization for Standardization 1986
-     Permission to copy in any form is granted for use with
-     conforming SGML systems and applications as defined in
-     ISO 8879, provided this notice is included in all copies.
--->
-<!-- Character entity set. Typical invocation:
-     <!ENTITY % ISOcyr2 PUBLIC
-       "ISO 8879:1986//ENTITIES Non-Russian Cyrillic//EN">
-     %ISOcyr2;
--->
-<!ENTITY djcy   SDATA "[djcy  ]"--=small dje, Serbian-->
-<!ENTITY DJcy   SDATA "[DJcy  ]"--=capital DJE, Serbian-->
-<!ENTITY gjcy   SDATA "[gjcy  ]"--=small gje, Macedonian-->
-<!ENTITY GJcy   SDATA "[GJcy  ]"--=capital GJE Macedonian-->
-<!ENTITY jukcy  SDATA "[jukcy ]"--=small je, Ukrainian-->
-<!ENTITY Jukcy  SDATA "[Jukcy ]"--=capital JE, Ukrainian-->
-<!ENTITY dscy   SDATA "[dscy  ]"--=small dse, Macedonian-->
-<!ENTITY DScy   SDATA "[DScy  ]"--=capital DSE, Macedonian-->
-<!ENTITY iukcy  SDATA "[iukcy ]"--=small i, Ukrainian-->
-<!ENTITY Iukcy  SDATA "[Iukcy ]"--=capital I, Ukrainian-->
-<!ENTITY yicy   SDATA "[yicy  ]"--=small yi, Ukrainian-->
-<!ENTITY YIcy   SDATA "[YIcy  ]"--=capital YI, Ukrainian-->
-<!ENTITY jsercy SDATA "[jsercy]"--=small je, Serbian-->
-<!ENTITY Jsercy SDATA "[Jsercy]"--=capital JE, Serbian-->
-<!ENTITY ljcy   SDATA "[ljcy  ]"--=small lje, Serbian-->
-<!ENTITY LJcy   SDATA "[LJcy  ]"--=capital LJE, Serbian-->
-<!ENTITY njcy   SDATA "[njcy  ]"--=small nje, Serbian-->
-<!ENTITY NJcy   SDATA "[NJcy  ]"--=capital NJE, Serbian-->
-<!ENTITY tshcy  SDATA "[tshcy ]"--=small tshe, Serbian-->
-<!ENTITY TSHcy  SDATA "[TSHcy ]"--=capital TSHE, Serbian-->
-<!ENTITY kjcy   SDATA "[kjcy  ]"--=small kje Macedonian-->
-<!ENTITY KJcy   SDATA "[KJcy  ]"--=capital KJE, Macedonian-->
-<!ENTITY ubrcy  SDATA "[ubrcy ]"--=small u, Byelorussian-->
-<!ENTITY Ubrcy  SDATA "[Ubrcy ]"--=capital U, Byelorussian-->
-<!ENTITY dzcy   SDATA "[dzcy  ]"--=small dze, Serbian-->
-<!ENTITY DZcy   SDATA "[DZcy  ]"--=capital dze, Serbian-->
diff --git a/Doc/sgml/iso/ISOdia b/Doc/sgml/iso/ISOdia
deleted file mode 100644
index 3b6f98d..0000000
--- a/Doc/sgml/iso/ISOdia
+++ /dev/null
@@ -1,24 +0,0 @@
-<!-- (C) International Organization for Standardization 1986
-     Permission to copy in any form is granted for use with
-     conforming SGML systems and applications as defined in
-     ISO 8879, provided this notice is included in all copies.
--->
-<!-- Character entity set. Typical invocation:
-     <!ENTITY % ISOdia PUBLIC
-       "ISO 8879:1986//ENTITIES Diacritical Marks//EN">
-     %ISOdia;
--->
-<!ENTITY acute  SDATA "[acute ]"--=acute accent-->
-<!ENTITY breve  SDATA "[breve ]"--=breve-->
-<!ENTITY caron  SDATA "[caron ]"--=caron-->
-<!ENTITY cedil  SDATA "[cedil ]"--=cedilla-->
-<!ENTITY circ   SDATA "[circ  ]"--=circumflex accent-->
-<!ENTITY dblac  SDATA "[dblac ]"--=double acute accent-->
-<!ENTITY die    SDATA "[die   ]"--=dieresis-->
-<!ENTITY dot    SDATA "[dot   ]"--=dot above-->
-<!ENTITY grave  SDATA "[grave ]"--=grave accent-->
-<!ENTITY macr   SDATA "[macr  ]"--=macron-->
-<!ENTITY ogon   SDATA "[ogon  ]"--=ogonek-->
-<!ENTITY ring   SDATA "[ring  ]"--=ring-->
-<!ENTITY tilde  SDATA "[tilde ]"--=tilde-->
-<!ENTITY uml    SDATA "[uml   ]"--=umlaut mark-->
diff --git a/Doc/sgml/iso/ISOgrk1 b/Doc/sgml/iso/ISOgrk1
deleted file mode 100644
index dea16bf..0000000
--- a/Doc/sgml/iso/ISOgrk1
+++ /dev/null
@@ -1,59 +0,0 @@
-<!-- (C) International Organization for Standardization 1986
-     Permission to copy in any form is granted for use with
-     conforming SGML systems and applications as defined in
-     ISO 8879, provided this notice is included in all copies.
--->
-<!-- Character entity set. Typical invocation:
-     <!ENTITY % ISOgrk1 PUBLIC
-       "ISO 8879:1986//ENTITIES Greek Letters//EN">
-     %ISOgrk1;
--->
-<!ENTITY agr    SDATA "[agr   ]"--=small alpha, Greek-->
-<!ENTITY Agr    SDATA "[Agr   ]"--=capital Alpha, Greek-->
-<!ENTITY bgr    SDATA "[bgr   ]"--=small beta, Greek-->
-<!ENTITY Bgr    SDATA "[Bgr   ]"--=capital Beta, Greek-->
-<!ENTITY ggr    SDATA "[ggr   ]"--=small gamma, Greek-->
-<!ENTITY Ggr    SDATA "[Ggr   ]"--=capital Gamma, Greek-->
-<!ENTITY dgr    SDATA "[dgr   ]"--=small delta, Greek-->
-<!ENTITY Dgr    SDATA "[Dgr   ]"--=capital Delta, Greek-->
-<!ENTITY egr    SDATA "[egr   ]"--=small epsilon, Greek-->
-<!ENTITY Egr    SDATA "[Egr   ]"--=capital Epsilon, Greek-->
-<!ENTITY zgr    SDATA "[zgr   ]"--=small zeta, Greek-->
-<!ENTITY Zgr    SDATA "[Zgr   ]"--=capital Zeta, Greek-->
-<!ENTITY eegr   SDATA "[eegr  ]"--=small eta, Greek-->
-<!ENTITY EEgr   SDATA "[EEgr  ]"--=capital Eta, Greek-->
-<!ENTITY thgr   SDATA "[thgr  ]"--=small theta, Greek-->
-<!ENTITY THgr   SDATA "[THgr  ]"--=capital Theta, Greek-->
-<!ENTITY igr    SDATA "[igr   ]"--=small iota, Greek-->
-<!ENTITY Igr    SDATA "[Igr   ]"--=capital Iota, Greek-->
-<!ENTITY kgr    SDATA "[kgr   ]"--=small kappa, Greek-->
-<!ENTITY Kgr    SDATA "[Kgr   ]"--=capital Kappa, Greek-->
-<!ENTITY lgr    SDATA "[lgr   ]"--=small lambda, Greek-->
-<!ENTITY Lgr    SDATA "[Lgr   ]"--=capital Lambda, Greek-->
-<!ENTITY mgr    SDATA "[mgr   ]"--=small mu, Greek-->
-<!ENTITY Mgr    SDATA "[Mgr   ]"--=capital Mu, Greek-->
-<!ENTITY ngr    SDATA "[ngr   ]"--=small nu, Greek-->
-<!ENTITY Ngr    SDATA "[Ngr   ]"--=capital Nu, Greek-->
-<!ENTITY xgr    SDATA "[xgr   ]"--=small xi, Greek-->
-<!ENTITY Xgr    SDATA "[Xgr   ]"--=capital Xi, Greek-->
-<!ENTITY ogr    SDATA "[ogr   ]"--=small omicron, Greek-->
-<!ENTITY Ogr    SDATA "[Ogr   ]"--=capital Omicron, Greek-->
-<!ENTITY pgr    SDATA "[pgr   ]"--=small pi, Greek-->
-<!ENTITY Pgr    SDATA "[Pgr   ]"--=capital Pi, Greek-->
-<!ENTITY rgr    SDATA "[rgr   ]"--=small rho, Greek-->
-<!ENTITY Rgr    SDATA "[Rgr   ]"--=capital Rho, Greek-->
-<!ENTITY sgr    SDATA "[sgr   ]"--=small sigma, Greek-->
-<!ENTITY Sgr    SDATA "[Sgr   ]"--=capital Sigma, Greek-->
-<!ENTITY sfgr   SDATA "[sfgr  ]"--=final small sigma, Greek-->
-<!ENTITY tgr    SDATA "[tgr   ]"--=small tau, Greek-->
-<!ENTITY Tgr    SDATA "[Tgr   ]"--=capital Tau, Greek-->
-<!ENTITY ugr    SDATA "[ugr   ]"--=small upsilon, Greek-->
-<!ENTITY Ugr    SDATA "[Ugr   ]"--=capital Upsilon, Greek-->
-<!ENTITY phgr   SDATA "[phgr  ]"--=small phi, Greek-->
-<!ENTITY PHgr   SDATA "[PHgr  ]"--=capital Phi, Greek-->
-<!ENTITY khgr   SDATA "[khgr  ]"--=small chi, Greek-->
-<!ENTITY KHgr   SDATA "[KHgr  ]"--=capital Chi, Greek-->
-<!ENTITY psgr   SDATA "[psgr  ]"--=small psi, Greek-->
-<!ENTITY PSgr   SDATA "[PSgr  ]"--=capital Psi, Greek-->
-<!ENTITY ohgr   SDATA "[ohgr  ]"--=small omega, Greek-->
-<!ENTITY OHgr   SDATA "[OHgr  ]"--=capital Omega, Greek-->
diff --git a/Doc/sgml/iso/ISOgrk2 b/Doc/sgml/iso/ISOgrk2
deleted file mode 100644
index 657bb99..0000000
--- a/Doc/sgml/iso/ISOgrk2
+++ /dev/null
@@ -1,30 +0,0 @@
-<!-- (C) International Organization for Standardization 1986
-     Permission to copy in any form is granted for use with
-     conforming SGML systems and applications as defined in
-     ISO 8879, provided this notice is included in all copies.
--->
-<!-- Character entity set. Typical invocation:
-     <!ENTITY % ISOgrk2 PUBLIC
-       "ISO 8879:1986//ENTITIES Monotoniko Greek//EN">
-     %ISOgrk2;
--->
-<!ENTITY aacgr  SDATA "[aacgr ]"--=small alpha, accent, Greek-->
-<!ENTITY Aacgr  SDATA "[Aacgr ]"--=capital Alpha, accent, Greek-->
-<!ENTITY eacgr  SDATA "[eacgr ]"--=small epsilon, accent, Greek-->
-<!ENTITY Eacgr  SDATA "[Eacgr ]"--=capital Epsilon, accent, Greek-->
-<!ENTITY eeacgr SDATA "[eeacgr]"--=small eta, accent, Greek-->
-<!ENTITY EEacgr SDATA "[EEacgr]"--=capital Eta, accent, Greek-->
-<!ENTITY idigr  SDATA "[idigr ]"--=small iota, dieresis, Greek-->
-<!ENTITY Idigr  SDATA "[Idigr ]"--=capital Iota, dieresis, Greek-->
-<!ENTITY iacgr  SDATA "[iacgr ]"--=small iota, accent, Greek-->
-<!ENTITY Iacgr  SDATA "[Iacgr ]"--=capital Iota, accent, Greek-->
-<!ENTITY idiagr SDATA "[idiagr]"--=small iota, dieresis, accent, Greek-->
-<!ENTITY oacgr  SDATA "[oacgr ]"--=small omicron, accent, Greek-->
-<!ENTITY Oacgr  SDATA "[Oacgr ]"--=capital Omicron, accent, Greek-->
-<!ENTITY udigr  SDATA "[udigr ]"--=small upsilon, dieresis, Greek-->
-<!ENTITY Udigr  SDATA "[Udigr ]"--=capital Upsilon, dieresis, Greek-->
-<!ENTITY uacgr  SDATA "[uacgr ]"--=small upsilon, accent, Greek-->
-<!ENTITY Uacgr  SDATA "[Uacgr ]"--=capital Upsilon, accent, Greek-->
-<!ENTITY udiagr SDATA "[udiagr]"--=small upsilon, dieresis, accent, Greek-->
-<!ENTITY ohacgr SDATA "[ohacgr]"--=small omega, accent, Greek-->
-<!ENTITY OHacgr SDATA "[OHacgr]"--=capital Omega, accent, Greek-->
diff --git a/Doc/sgml/iso/ISOgrk3 b/Doc/sgml/iso/ISOgrk3
deleted file mode 100644
index f76c3a0..0000000
--- a/Doc/sgml/iso/ISOgrk3
+++ /dev/null
@@ -1,53 +0,0 @@
-<!-- (C) International Organization for Standardization 1986
-     Permission to copy in any form is granted for use with
-     conforming SGML systems and applications as defined in
-     ISO 8879, provided this notice is included in all copies.
--->
-<!-- Character entity set. Typical invocation:
-     <!ENTITY % ISOgrk3 PUBLIC
-       "ISO 8879:1986//ENTITIES Greek Symbols//EN">
-     %ISOgrk3;
--->
-<!ENTITY alpha    SDATA "[alpha ]"--=small alpha, Greek-->
-<!ENTITY beta     SDATA "[beta  ]"--=small beta, Greek-->
-<!ENTITY gamma    SDATA "[gamma ]"--=small gamma, Greek-->
-<!ENTITY Gamma    SDATA "[Gamma ]"--=capital Gamma, Greek-->
-<!ENTITY gammad   SDATA "[gammad]"--/digamma-->
-<!ENTITY delta    SDATA "[delta ]"--=small delta, Greek-->
-<!ENTITY Delta    SDATA "[Delta ]"--=capital Delta, Greek-->
-<!ENTITY epsi     SDATA "[epsi  ]"--=small epsilon, Greek-->
-<!ENTITY epsiv    SDATA "[epsiv ]"--/varepsilon-->
-<!ENTITY epsis    SDATA "[epsis ]"--/straightepsilon-->
-<!ENTITY zeta     SDATA "[zeta  ]"--=small zeta, Greek-->
-<!ENTITY eta      SDATA "[eta   ]"--=small eta, Greek-->
-<!ENTITY thetas   SDATA "[thetas]"--straight theta-->
-<!ENTITY Theta    SDATA "[Theta ]"--=capital Theta, Greek-->
-<!ENTITY thetav   SDATA "[thetav]"--/vartheta - curly or open theta-->
-<!ENTITY iota     SDATA "[iota  ]"--=small iota, Greek-->
-<!ENTITY kappa    SDATA "[kappa ]"--=small kappa, Greek-->
-<!ENTITY kappav   SDATA "[kappav]"--/varkappa-->
-<!ENTITY lambda   SDATA "[lambda]"--=small lambda, Greek-->
-<!ENTITY Lambda   SDATA "[Lambda]"--=capital Lambda, Greek-->
-<!ENTITY mu       SDATA "[mu    ]"--=small mu, Greek-->
-<!ENTITY nu       SDATA "[nu    ]"--=small nu, Greek-->
-<!ENTITY xi       SDATA "[xi    ]"--=small xi, Greek-->
-<!ENTITY Xi       SDATA "[Xi    ]"--=capital Xi, Greek-->
-<!ENTITY pi       SDATA "[pi    ]"--=small pi, Greek-->
-<!ENTITY piv      SDATA "[piv   ]"--/varpi-->
-<!ENTITY Pi       SDATA "[Pi    ]"--=capital Pi, Greek-->
-<!ENTITY rho      SDATA "[rho   ]"--=small rho, Greek-->
-<!ENTITY rhov     SDATA "[rhov  ]"--/varrho-->
-<!ENTITY sigma    SDATA "[sigma ]"--=small sigma, Greek-->
-<!ENTITY Sigma    SDATA "[Sigma ]"--=capital Sigma, Greek-->
-<!ENTITY sigmav   SDATA "[sigmav]"--/varsigma-->
-<!ENTITY tau      SDATA "[tau   ]"--=small tau, Greek-->
-<!ENTITY upsi     SDATA "[upsi  ]"--=small upsilon, Greek-->
-<!ENTITY Upsi     SDATA "[Upsi  ]"--=capital Upsilon, Greek-->
-<!ENTITY phis     SDATA "[phis  ]"--/straightphi - straight phi-->
-<!ENTITY Phi      SDATA "[Phi   ]"--=capital Phi, Greek-->
-<!ENTITY phiv     SDATA "[phiv  ]"--/varphi - curly or open phi-->
-<!ENTITY chi      SDATA "[chi   ]"--=small chi, Greek-->
-<!ENTITY psi      SDATA "[psi   ]"--=small psi, Greek-->
-<!ENTITY Psi      SDATA "[Psi   ]"--=capital Psi, Greek-->
-<!ENTITY omega    SDATA "[omega ]"--=small omega, Greek-->
-<!ENTITY Omega    SDATA "[Omega ]"--=capital Omega, Greek-->
diff --git a/Doc/sgml/iso/ISOgrk4 b/Doc/sgml/iso/ISOgrk4
deleted file mode 100644
index e4427a0..0000000
--- a/Doc/sgml/iso/ISOgrk4
+++ /dev/null
@@ -1,53 +0,0 @@
-<!-- (C) International Organization for Standardization 1986
-     Permission to copy in any form is granted for use with
-     conforming SGML systems and applications as defined in
-     ISO 8879, provided this notice is included in all copies.
--->
-<!-- Character entity set. Typical invocation:
-     <!ENTITY % ISOgrk4 PUBLIC
-       "ISO 8879:1986//ENTITIES Alternative Greek Symbols//EN">
-     %ISOgrk4;
--->
-<!ENTITY b.alpha  SDATA "[b.alpha ]"--=small alpha, Greek-->
-<!ENTITY b.beta   SDATA "[b.beta  ]"--=small beta, Greek-->
-<!ENTITY b.gamma  SDATA "[b.gamma ]"--=small gamma, Greek-->
-<!ENTITY b.Gamma  SDATA "[b.Gamma ]"--=capital Gamma, Greek-->
-<!ENTITY b.gammad SDATA "[b.gammad]"--/digamma-->
-<!ENTITY b.delta  SDATA "[b.delta ]"--=small delta, Greek-->
-<!ENTITY b.Delta  SDATA "[b.Delta ]"--=capital Delta, Greek-->
-<!ENTITY b.epsi   SDATA "[b.epsi  ]"--=small epsilon, Greek-->
-<!ENTITY b.epsiv  SDATA "[b.epsiv ]"--/varepsilon-->
-<!ENTITY b.epsis  SDATA "[b.epsis ]"--/straightepsilon-->
-<!ENTITY b.zeta   SDATA "[b.zeta  ]"--=small zeta, Greek-->
-<!ENTITY b.eta    SDATA "[b.eta   ]"--=small eta, Greek-->
-<!ENTITY b.thetas SDATA "[b.thetas]"--straight theta-->
-<!ENTITY b.Theta  SDATA "[b.Theta ]"--=capital Theta, Greek-->
-<!ENTITY b.thetav SDATA "[b.thetav]"--/vartheta - curly or open theta-->
-<!ENTITY b.iota   SDATA "[b.iota  ]"--=small iota, Greek-->
-<!ENTITY b.kappa  SDATA "[b.kappa ]"--=small kappa, Greek-->
-<!ENTITY b.kappav SDATA "[b.kappav]"--/varkappa-->
-<!ENTITY b.lambda SDATA "[b.lambda]"--=small lambda, Greek-->
-<!ENTITY b.Lambda SDATA "[b.Lambda]"--=capital Lambda, Greek-->
-<!ENTITY b.mu     SDATA "[b.mu    ]"--=small mu, Greek-->
-<!ENTITY b.nu     SDATA "[b.nu    ]"--=small nu, Greek-->
-<!ENTITY b.xi     SDATA "[b.xi    ]"--=small xi, Greek-->
-<!ENTITY b.Xi     SDATA "[b.Xi    ]"--=capital Xi, Greek-->
-<!ENTITY b.pi     SDATA "[b.pi    ]"--=small pi, Greek-->
-<!ENTITY b.Pi     SDATA "[b.Pi    ]"--=capital Pi, Greek-->
-<!ENTITY b.piv    SDATA "[b.piv   ]"--/varpi-->
-<!ENTITY b.rho    SDATA "[b.rho   ]"--=small rho, Greek-->
-<!ENTITY b.rhov   SDATA "[b.rhov  ]"--/varrho-->
-<!ENTITY b.sigma  SDATA "[b.sigma ]"--=small sigma, Greek-->
-<!ENTITY b.Sigma  SDATA "[b.Sigma ]"--=capital Sigma, Greek-->
-<!ENTITY b.sigmav SDATA "[b.sigmav]"--/varsigma-->
-<!ENTITY b.tau    SDATA "[b.tau   ]"--=small tau, Greek-->
-<!ENTITY b.upsi   SDATA "[b.upsi  ]"--=small upsilon, Greek-->
-<!ENTITY b.Upsi   SDATA "[b.Upsi  ]"--=capital Upsilon, Greek-->
-<!ENTITY b.phis   SDATA "[b.phis  ]"--/straightphi - straight phi-->
-<!ENTITY b.Phi    SDATA "[b.Phi   ]"--=capital Phi, Greek-->
-<!ENTITY b.phiv   SDATA "[b.phiv  ]"--/varphi - curly or open phi-->
-<!ENTITY b.chi    SDATA "[b.chi   ]"--=small chi, Greek-->
-<!ENTITY b.psi    SDATA "[b.psi   ]"--=small psi, Greek-->
-<!ENTITY b.Psi    SDATA "[b.Psi   ]"--=capital Psi, Greek-->
-<!ENTITY b.omega  SDATA "[b.omega ]"--=small omega, Greek-->
-<!ENTITY b.Omega  SDATA "[b.Omega ]"--=capital Omega, Greek-->
diff --git a/Doc/sgml/iso/ISOlat1 b/Doc/sgml/iso/ISOlat1
deleted file mode 100644
index 0d7d0a7..0000000
--- a/Doc/sgml/iso/ISOlat1
+++ /dev/null
@@ -1,72 +0,0 @@
-<!-- (C) International Organization for Standardization 1986
-     Permission to copy in any form is granted for use with
-     conforming SGML systems and applications as defined in
-     ISO 8879, provided this notice is included in all copies.
--->
-<!-- Character entity set. Typical invocation:
-     <!ENTITY % ISOlat1 PUBLIC
-       "ISO 8879:1986//ENTITIES Added Latin 1//EN">
-     %ISOlat1;
--->
-<!ENTITY aacute SDATA "[aacute]"--=small a, acute accent-->
-<!ENTITY Aacute SDATA "[Aacute]"--=capital A, acute accent-->
-<!ENTITY acirc  SDATA "[acirc ]"--=small a, circumflex accent-->
-<!ENTITY Acirc  SDATA "[Acirc ]"--=capital A, circumflex accent-->
-<!ENTITY agrave SDATA "[agrave]"--=small a, grave accent-->
-<!ENTITY Agrave SDATA "[Agrave]"--=capital A, grave accent-->
-<!ENTITY aring  SDATA "[aring ]"--=small a, ring-->
-<!ENTITY Aring  SDATA "[Aring ]"--=capital A, ring-->
-<!ENTITY atilde SDATA "[atilde]"--=small a, tilde-->
-<!ENTITY Atilde SDATA "[Atilde]"--=capital A, tilde-->
-<!ENTITY auml   SDATA "[auml  ]"--=small a, dieresis or umlaut mark-->
-<!ENTITY Auml   SDATA "[Auml  ]"--=capital A, dieresis or umlaut mark-->
-<!ENTITY aelig  SDATA "[aelig ]"--=small ae diphthong (ligature)-->
-<!ENTITY AElig  SDATA "[AElig ]"--=capital AE diphthong (ligature)-->
-<!ENTITY ccedil SDATA "[ccedil]"--=small c, cedilla-->
-<!ENTITY Ccedil SDATA "[Ccedil]"--=capital C, cedilla-->
-<!ENTITY eth    SDATA "[eth   ]"--=small eth, Icelandic-->
-<!ENTITY ETH    SDATA "[ETH   ]"--=capital Eth, Icelandic-->
-<!ENTITY eacute SDATA "[eacute]"--=small e, acute accent-->
-<!ENTITY Eacute SDATA "[Eacute]"--=capital E, acute accent-->
-<!ENTITY ecirc  SDATA "[ecirc ]"--=small e, circumflex accent-->
-<!ENTITY Ecirc  SDATA "[Ecirc ]"--=capital E, circumflex accent-->
-<!ENTITY egrave SDATA "[egrave]"--=small e, grave accent-->
-<!ENTITY Egrave SDATA "[Egrave]"--=capital E, grave accent-->
-<!ENTITY euml   SDATA "[euml  ]"--=small e, dieresis or umlaut mark-->
-<!ENTITY Euml   SDATA "[Euml  ]"--=capital E, dieresis or umlaut mark-->
-<!ENTITY iacute SDATA "[iacute]"--=small i, acute accent-->
-<!ENTITY Iacute SDATA "[Iacute]"--=capital I, acute accent-->
-<!ENTITY icirc  SDATA "[icirc ]"--=small i, circumflex accent-->
-<!ENTITY Icirc  SDATA "[Icirc ]"--=capital I, circumflex accent-->
-<!ENTITY igrave SDATA "[igrave]"--=small i, grave accent-->
-<!ENTITY Igrave SDATA "[Igrave]"--=capital I, grave accent-->
-<!ENTITY iuml   SDATA "[iuml  ]"--=small i, dieresis or umlaut mark-->
-<!ENTITY Iuml   SDATA "[Iuml  ]"--=capital I, dieresis or umlaut mark-->
-<!ENTITY ntilde SDATA "[ntilde]"--=small n, tilde-->
-<!ENTITY Ntilde SDATA "[Ntilde]"--=capital N, tilde-->
-<!ENTITY oacute SDATA "[oacute]"--=small o, acute accent-->
-<!ENTITY Oacute SDATA "[Oacute]"--=capital O, acute accent-->
-<!ENTITY ocirc  SDATA "[ocirc ]"--=small o, circumflex accent-->
-<!ENTITY Ocirc  SDATA "[Ocirc ]"--=capital O, circumflex accent-->
-<!ENTITY ograve SDATA "[ograve]"--=small o, grave accent-->
-<!ENTITY Ograve SDATA "[Ograve]"--=capital O, grave accent-->
-<!ENTITY oslash SDATA "[oslash]"--=small o, slash-->
-<!ENTITY Oslash SDATA "[Oslash]"--=capital O, slash-->
-<!ENTITY otilde SDATA "[otilde]"--=small o, tilde-->
-<!ENTITY Otilde SDATA "[Otilde]"--=capital O, tilde-->
-<!ENTITY ouml   SDATA "[ouml  ]"--=small o, dieresis or umlaut mark-->
-<!ENTITY Ouml   SDATA "[Ouml  ]"--=capital O, dieresis or umlaut mark-->
-<!ENTITY szlig  SDATA "[szlig ]"--=small sharp s, German (sz ligature)-->
-<!ENTITY thorn  SDATA "[thorn ]"--=small thorn, Icelandic-->
-<!ENTITY THORN  SDATA "[THORN ]"--=capital THORN, Icelandic-->
-<!ENTITY uacute SDATA "[uacute]"--=small u, acute accent-->
-<!ENTITY Uacute SDATA "[Uacute]"--=capital U, acute accent-->
-<!ENTITY ucirc  SDATA "[ucirc ]"--=small u, circumflex accent-->
-<!ENTITY Ucirc  SDATA "[Ucirc ]"--=capital U, circumflex accent-->
-<!ENTITY ugrave SDATA "[ugrave]"--=small u, grave accent-->
-<!ENTITY Ugrave SDATA "[Ugrave]"--=capital U, grave accent-->
-<!ENTITY uuml   SDATA "[uuml  ]"--=small u, dieresis or umlaut mark-->
-<!ENTITY Uuml   SDATA "[Uuml  ]"--=capital U, dieresis or umlaut mark-->
-<!ENTITY yacute SDATA "[yacute]"--=small y, acute accent-->
-<!ENTITY Yacute SDATA "[Yacute]"--=capital Y, acute accent-->
-<!ENTITY yuml   SDATA "[yuml  ]"--=small y, dieresis or umlaut mark-->
diff --git a/Doc/sgml/iso/ISOlat2 b/Doc/sgml/iso/ISOlat2
deleted file mode 100644
index 4bcb337..0000000
--- a/Doc/sgml/iso/ISOlat2
+++ /dev/null
@@ -1,131 +0,0 @@
-<!-- (C) International Organization for Standardization 1986
-     Permission to copy in any form is granted for use with
-     conforming SGML systems and applications as defined in
-     ISO 8879, provided this notice is included in all copies.
--->
-<!-- Character entity set. Typical invocation:
-     <!ENTITY % ISOlat2 PUBLIC
-       "ISO 8879:1986//ENTITIES Added Latin 2//EN">
-     %ISOlat2;
--->
-<!ENTITY abreve SDATA "[abreve]"--=small a, breve-->
-<!ENTITY Abreve SDATA "[Abreve]"--=capital A, breve-->
-<!ENTITY amacr  SDATA "[amacr ]"--=small a, macron-->
-<!ENTITY Amacr  SDATA "[Amacr ]"--=capital A, macron-->
-<!ENTITY aogon  SDATA "[aogon ]"--=small a, ogonek-->
-<!ENTITY Aogon  SDATA "[Aogon ]"--=capital A, ogonek-->
-<!ENTITY cacute SDATA "[cacute]"--=small c, acute accent-->
-<!ENTITY Cacute SDATA "[Cacute]"--=capital C, acute accent-->
-<!ENTITY ccaron SDATA "[ccaron]"--=small c, caron-->
-<!ENTITY Ccaron SDATA "[Ccaron]"--=capital C, caron-->
-<!ENTITY ccirc  SDATA "[ccirc ]"--=small c, circumflex accent-->
-<!ENTITY Ccirc  SDATA "[Ccirc ]"--=capital C, circumflex accent-->
-<!ENTITY cdot   SDATA "[cdot  ]"--=small c, dot above-->
-<!ENTITY Cdot   SDATA "[Cdot  ]"--=capital C, dot above-->
-<!ENTITY dcaron SDATA "[dcaron]"--=small d, caron-->
-<!ENTITY Dcaron SDATA "[Dcaron]"--=capital D, caron-->
-<!ENTITY dstrok SDATA "[dstrok]"--=small d, stroke-->
-<!ENTITY Dstrok SDATA "[Dstrok]"--=capital D, stroke-->
-<!ENTITY ecaron SDATA "[ecaron]"--=small e, caron-->
-<!ENTITY Ecaron SDATA "[Ecaron]"--=capital E, caron-->
-<!ENTITY edot   SDATA "[edot  ]"--=small e, dot above-->
-<!ENTITY Edot   SDATA "[Edot  ]"--=capital E, dot above-->
-<!ENTITY emacr  SDATA "[emacr ]"--=small e, macron-->
-<!ENTITY Emacr  SDATA "[Emacr ]"--=capital E, macron-->
-<!ENTITY eogon  SDATA "[eogon ]"--=small e, ogonek-->
-<!ENTITY Eogon  SDATA "[Eogon ]"--=capital E, ogonek-->
-<!ENTITY gacute SDATA "[gacute]"--=small g, acute accent-->
-<!ENTITY gbreve SDATA "[gbreve]"--=small g, breve-->
-<!ENTITY Gbreve SDATA "[Gbreve]"--=capital G, breve-->
-<!ENTITY Gcedil SDATA "[Gcedil]"--=capital G, cedilla-->
-<!ENTITY gcirc  SDATA "[gcirc ]"--=small g, circumflex accent-->
-<!ENTITY Gcirc  SDATA "[Gcirc ]"--=capital G, circumflex accent-->
-<!ENTITY gdot   SDATA "[gdot  ]"--=small g, dot above-->
-<!ENTITY Gdot   SDATA "[Gdot  ]"--=capital G, dot above-->
-<!ENTITY hcirc  SDATA "[hcirc ]"--=small h, circumflex accent-->
-<!ENTITY Hcirc  SDATA "[Hcirc ]"--=capital H, circumflex accent-->
-<!ENTITY hstrok SDATA "[hstrok]"--=small h, stroke-->
-<!ENTITY Hstrok SDATA "[Hstrok]"--=capital H, stroke-->
-<!ENTITY Idot   SDATA "[Idot  ]"--=capital I, dot above-->
-<!ENTITY Imacr  SDATA "[Imacr ]"--=capital I, macron-->
-<!ENTITY imacr  SDATA "[imacr ]"--=small i, macron-->
-<!ENTITY ijlig  SDATA "[ijlig ]"--=small ij ligature-->
-<!ENTITY IJlig  SDATA "[IJlig ]"--=capital IJ ligature-->
-<!ENTITY inodot SDATA "[inodot]"--=small i without dot-->
-<!ENTITY iogon  SDATA "[iogon ]"--=small i, ogonek-->
-<!ENTITY Iogon  SDATA "[Iogon ]"--=capital I, ogonek-->
-<!ENTITY itilde SDATA "[itilde]"--=small i, tilde-->
-<!ENTITY Itilde SDATA "[Itilde]"--=capital I, tilde-->
-<!ENTITY jcirc  SDATA "[jcirc ]"--=small j, circumflex accent-->
-<!ENTITY Jcirc  SDATA "[Jcirc ]"--=capital J, circumflex accent-->
-<!ENTITY kcedil SDATA "[kcedil]"--=small k, cedilla-->
-<!ENTITY Kcedil SDATA "[Kcedil]"--=capital K, cedilla-->
-<!ENTITY kgreen SDATA "[kgreen]"--=small k, Greenlandic-->
-<!ENTITY lacute SDATA "[lacute]"--=small l, acute accent-->
-<!ENTITY Lacute SDATA "[Lacute]"--=capital L, acute accent-->
-<!ENTITY lcaron SDATA "[lcaron]"--=small l, caron-->
-<!ENTITY Lcaron SDATA "[Lcaron]"--=capital L, caron-->
-<!ENTITY lcedil SDATA "[lcedil]"--=small l, cedilla-->
-<!ENTITY Lcedil SDATA "[Lcedil]"--=capital L, cedilla-->
-<!ENTITY lmidot SDATA "[lmidot]"--=small l, middle dot-->
-<!ENTITY Lmidot SDATA "[Lmidot]"--=capital L, middle dot-->
-<!ENTITY lstrok SDATA "[lstrok]"--=small l, stroke-->
-<!ENTITY Lstrok SDATA "[Lstrok]"--=capital L, stroke-->
-<!ENTITY nacute SDATA "[nacute]"--=small n, acute accent-->
-<!ENTITY Nacute SDATA "[Nacute]"--=capital N, acute accent-->
-<!ENTITY eng    SDATA "[eng   ]"--=small eng, Lapp-->
-<!ENTITY ENG    SDATA "[ENG   ]"--=capital ENG, Lapp-->
-<!ENTITY napos  SDATA "[napos ]"--=small n, apostrophe-->
-<!ENTITY ncaron SDATA "[ncaron]"--=small n, caron-->
-<!ENTITY Ncaron SDATA "[Ncaron]"--=capital N, caron-->
-<!ENTITY ncedil SDATA "[ncedil]"--=small n, cedilla-->
-<!ENTITY Ncedil SDATA "[Ncedil]"--=capital N, cedilla-->
-<!ENTITY odblac SDATA "[odblac]"--=small o, double acute accent-->
-<!ENTITY Odblac SDATA "[Odblac]"--=capital O, double acute accent-->
-<!ENTITY Omacr  SDATA "[Omacr ]"--=capital O, macron-->
-<!ENTITY omacr  SDATA "[omacr ]"--=small o, macron-->
-<!ENTITY oelig  SDATA "[oelig ]"--=small oe ligature-->
-<!ENTITY OElig  SDATA "[OElig ]"--=capital OE ligature-->
-<!ENTITY racute SDATA "[racute]"--=small r, acute accent-->
-<!ENTITY Racute SDATA "[Racute]"--=capital R, acute accent-->
-<!ENTITY rcaron SDATA "[rcaron]"--=small r, caron-->
-<!ENTITY Rcaron SDATA "[Rcaron]"--=capital R, caron-->
-<!ENTITY rcedil SDATA "[rcedil]"--=small r, cedilla-->
-<!ENTITY Rcedil SDATA "[Rcedil]"--=capital R, cedilla-->
-<!ENTITY sacute SDATA "[sacute]"--=small s, acute accent-->
-<!ENTITY Sacute SDATA "[Sacute]"--=capital S, acute accent-->
-<!ENTITY scaron SDATA "[scaron]"--=small s, caron-->
-<!ENTITY Scaron SDATA "[Scaron]"--=capital S, caron-->
-<!ENTITY scedil SDATA "[scedil]"--=small s, cedilla-->
-<!ENTITY Scedil SDATA "[Scedil]"--=capital S, cedilla-->
-<!ENTITY scirc  SDATA "[scirc ]"--=small s, circumflex accent-->
-<!ENTITY Scirc  SDATA "[Scirc ]"--=capital S, circumflex accent-->
-<!ENTITY tcaron SDATA "[tcaron]"--=small t, caron-->
-<!ENTITY Tcaron SDATA "[Tcaron]"--=capital T, caron-->
-<!ENTITY tcedil SDATA "[tcedil]"--=small t, cedilla-->
-<!ENTITY Tcedil SDATA "[Tcedil]"--=capital T, cedilla-->
-<!ENTITY tstrok SDATA "[tstrok]"--=small t, stroke-->
-<!ENTITY Tstrok SDATA "[Tstrok]"--=capital T, stroke-->
-<!ENTITY ubreve SDATA "[ubreve]"--=small u, breve-->
-<!ENTITY Ubreve SDATA "[Ubreve]"--=capital U, breve-->
-<!ENTITY udblac SDATA "[udblac]"--=small u, double acute accent-->
-<!ENTITY Udblac SDATA "[Udblac]"--=capital U, double acute accent-->
-<!ENTITY umacr  SDATA "[umacr ]"--=small u, macron-->
-<!ENTITY Umacr  SDATA "[Umacr ]"--=capital U, macron-->
-<!ENTITY uogon  SDATA "[uogon ]"--=small u, ogonek-->
-<!ENTITY Uogon  SDATA "[Uogon ]"--=capital U, ogonek-->
-<!ENTITY uring  SDATA "[uring ]"--=small u, ring-->
-<!ENTITY Uring  SDATA "[Uring ]"--=capital U, ring-->
-<!ENTITY utilde SDATA "[utilde]"--=small u, tilde-->
-<!ENTITY Utilde SDATA "[Utilde]"--=capital U, tilde-->
-<!ENTITY wcirc  SDATA "[wcirc ]"--=small w, circumflex accent-->
-<!ENTITY Wcirc  SDATA "[Wcirc ]"--=capital W, circumflex accent-->
-<!ENTITY ycirc  SDATA "[ycirc ]"--=small y, circumflex accent-->
-<!ENTITY Ycirc  SDATA "[Ycirc ]"--=capital Y, circumflex accent-->
-<!ENTITY Yuml   SDATA "[Yuml  ]"--=capital Y, dieresis or umlaut mark-->
-<!ENTITY zacute SDATA "[zacute]"--=small z, acute accent-->
-<!ENTITY Zacute SDATA "[Zacute]"--=capital Z, acute accent-->
-<!ENTITY zcaron SDATA "[zcaron]"--=small z, caron-->
-<!ENTITY Zcaron SDATA "[Zcaron]"--=capital Z, caron-->
-<!ENTITY zdot   SDATA "[zdot  ]"--=small z, dot above-->
-<!ENTITY Zdot   SDATA "[Zdot  ]"--=capital Z, dot above-->
diff --git a/Doc/sgml/iso/ISOnum b/Doc/sgml/iso/ISOnum
deleted file mode 100644
index d7b41c3..0000000
--- a/Doc/sgml/iso/ISOnum
+++ /dev/null
@@ -1,91 +0,0 @@
-<!-- (C) International Organization for Standardization 1986
-     Permission to copy in any form is granted for use with
-     conforming SGML systems and applications as defined in
-     ISO 8879, provided this notice is included in all copies.
--->
-<!-- Character entity set. Typical invocation:
-     <!ENTITY % ISOnum PUBLIC
-       "ISO 8879:1986//ENTITIES Numeric and Special Graphic//EN">
-     %ISOnum;
--->
-<!ENTITY half   SDATA "[half  ]"--=fraction one-half-->
-<!ENTITY frac12 SDATA "[frac12]"--=fraction one-half-->
-<!ENTITY frac14 SDATA "[frac14]"--=fraction one-quarter-->
-<!ENTITY frac34 SDATA "[frac34]"--=fraction three-quarters-->
-<!ENTITY frac18 SDATA "[frac18]"--=fraction one-eighth-->
-<!ENTITY frac38 SDATA "[frac38]"--=fraction three-eighths-->
-<!ENTITY frac58 SDATA "[frac58]"--=fraction five-eighths-->
-<!ENTITY frac78 SDATA "[frac78]"--=fraction seven-eighths-->
-
-<!ENTITY sup1   SDATA "[sup1  ]"--=superscript one-->
-<!ENTITY sup2   SDATA "[sup2  ]"--=superscript two-->
-<!ENTITY sup3   SDATA "[sup3  ]"--=superscript three-->
-
-<!ENTITY plus   SDATA "[plus  ]"--=plus sign B:-- >
-<!ENTITY plusmn SDATA "[plusmn]"--/pm B: =plus-or-minus sign-->
-<!ENTITY lt     SDATA "[lt    ]"--=less-than sign R:-->
-<!ENTITY equals SDATA "[equals]"--=equals sign R:-->
-<!ENTITY gt     SDATA "[gt    ]"--=greater-than sign R:-->
-<!ENTITY divide SDATA "[divide]"--/div B: =divide sign-->
-<!ENTITY times  SDATA "[times ]"--/times B: =multiply sign-->
-
-<!ENTITY curren SDATA "[curren]"--=general currency sign-->
-<!ENTITY pound  SDATA "[pound ]"--=pound sign-->
-<!ENTITY dollar SDATA "[dollar]"--=dollar sign-->
-<!ENTITY cent   SDATA "[cent  ]"--=cent sign-->
-<!ENTITY yen    SDATA "[yen   ]"--/yen =yen sign-->
-
-<!ENTITY num    SDATA "[num   ]"--=number sign-->
-<!ENTITY percnt SDATA "[percnt]"--=percent sign-->
-<!ENTITY amp    SDATA "[amp   ]"--=ampersand-->
-<!ENTITY ast    SDATA "[ast   ]"--/ast B: =asterisk-->
-<!ENTITY commat SDATA "[commat]"--=commercial at-->
-<!ENTITY lsqb   SDATA "[lsqb  ]"--/lbrack O: =left square bracket-->
-<!ENTITY bsol   SDATA "[bsol  ]"--/backslash =reverse solidus-->
-<!ENTITY rsqb   SDATA "[rsqb  ]"--/rbrack C: =right square bracket-->
-<!ENTITY lcub   SDATA "[lcub  ]"--/lbrace O: =left curly bracket-->
-<!ENTITY horbar SDATA "[horbar]"--=horizontal bar-->
-<!ENTITY verbar SDATA "[verbar]"--/vert =vertical bar-->
-<!ENTITY rcub   SDATA "[rcub  ]"--/rbrace C: =right curly bracket-->
-<!ENTITY micro  SDATA "[micro ]"--=micro sign-->
-<!ENTITY ohm    SDATA "[ohm   ]"--=ohm sign-->
-<!ENTITY deg    SDATA "[deg   ]"--=degree sign-->
-<!ENTITY ordm   SDATA "[ordm  ]"--=ordinal indicator, masculine-->
-<!ENTITY ordf   SDATA "[ordf  ]"--=ordinal indicator, feminine-->
-<!ENTITY sect   SDATA "[sect  ]"--=section sign-->
-<!ENTITY para   SDATA "[para  ]"--=pilcrow (paragraph sign)-->
-<!ENTITY middot SDATA "[middot]"--/centerdot B: =middle dot-->
-<!ENTITY larr   SDATA "[larr  ]"--/leftarrow /gets A: =leftward arrow-->
-<!ENTITY rarr   SDATA "[rarr  ]"--/rightarrow /to A: =rightward arrow-->
-<!ENTITY uarr   SDATA "[uarr  ]"--/uparrow A: =upward arrow-->
-<!ENTITY darr   SDATA "[darr  ]"--/downarrow A: =downward arrow-->
-<!ENTITY copy   SDATA "[copy  ]"--=copyright sign-->
-<!ENTITY reg    SDATA "[reg   ]"--/circledR =registered sign-->
-<!ENTITY trade  SDATA "[trade ]"--=trade mark sign-->
-<!ENTITY brvbar SDATA "[brvbar]"--=broken (vertical) bar-->
-<!ENTITY not    SDATA "[not   ]"--/neg /lnot =not sign-->
-<!ENTITY sung   SDATA "[sung  ]"--=music note (sung text sign)-->
-
-<!ENTITY excl   SDATA "[excl  ]"--=exclamation mark-->
-<!ENTITY iexcl  SDATA "[iexcl ]"--=inverted exclamation mark-->
-<!ENTITY quot   SDATA "[quot  ]"--=quotation mark-->
-<!ENTITY apos   SDATA "[apos  ]"--=apostrophe-->
-<!ENTITY lpar   SDATA "[lpar  ]"--O: =left parenthesis-->
-<!ENTITY rpar   SDATA "[rpar  ]"--C: =right parenthesis-->
-<!ENTITY comma  SDATA "[comma ]"--P: =comma-->
-<!ENTITY lowbar SDATA "[lowbar]"--=low line-->
-<!ENTITY hyphen SDATA "[hyphen]"--=hyphen-->
-<!ENTITY period SDATA "[period]"--=full stop, period-->
-<!ENTITY sol    SDATA "[sol   ]"--=solidus-->
-<!ENTITY colon  SDATA "[colon ]"--/colon P:-->
-<!ENTITY semi   SDATA "[semi  ]"--=semicolon P:-->
-<!ENTITY quest  SDATA "[quest ]"--=question mark-->
-<!ENTITY iquest SDATA "[iquest]"--=inverted question mark-->
-<!ENTITY laquo  SDATA "[laquo ]"--=angle quotation mark, left-->
-<!ENTITY raquo  SDATA "[raquo ]"--=angle quotation mark, right-->
-<!ENTITY lsquo  SDATA "[lsquo ]"--=single quotation mark, left-->
-<!ENTITY rsquo  SDATA "[rsquo ]"--=single quotation mark, right-->
-<!ENTITY ldquo  SDATA "[ldquo ]"--=double quotation mark, left-->
-<!ENTITY rdquo  SDATA "[rdquo ]"--=double quotation mark, right-->
-<!ENTITY nbsp   SDATA "[nbsp  ]"--=no break (required) space-->
-<!ENTITY shy    SDATA "[shy   ]"--=soft hyphen-->
diff --git a/Doc/sgml/iso/ISOpub b/Doc/sgml/iso/ISOpub
deleted file mode 100644
index c184973..0000000
--- a/Doc/sgml/iso/ISOpub
+++ /dev/null
@@ -1,100 +0,0 @@
-<!-- (C) International Organization for Standardization 1986
-     Permission to copy in any form is granted for use with
-     conforming SGML systems and applications as defined in
-     ISO 8879, provided this notice is included in all copies.
--->
-<!-- Character entity set. Typical invocation:
-     <!ENTITY % ISOpub PUBLIC
-       "ISO 8879:1986//ENTITIES Publishing//EN">
-     %ISOpub;
--->
-<!ENTITY emsp   SDATA "[emsp  ]"--=em space-->
-<!ENTITY ensp   SDATA "[ensp  ]"--=en space (1/2-em)-->
-<!ENTITY emsp13 SDATA "[emsp3 ]"--=1/3-em space-->
-<!ENTITY emsp14 SDATA "[emsp4 ]"--=1/4-em space-->
-<!ENTITY numsp  SDATA "[numsp ]"--=digit space (width of a number)-->
-<!ENTITY puncsp SDATA "[puncsp]"--=punctuation space (width of comma)-->
-<!ENTITY thinsp SDATA "[thinsp]"--=thin space (1/6-em)-->
-<!ENTITY hairsp SDATA "[hairsp]"--=hair space-->
-<!ENTITY mdash  SDATA "[mdash ]"--=em dash-->
-<!ENTITY ndash  SDATA "[ndash ]"--=en dash-->
-<!ENTITY dash   SDATA "[dash  ]"--=hyphen (true graphic)-->
-<!ENTITY blank  SDATA "[blank ]"--=significant blank symbol-->
-<!ENTITY hellip SDATA "[hellip]"--=ellipsis (horizontal)-->
-<!ENTITY nldr   SDATA "[nldr  ]"--=double baseline dot (en leader)-->
-<!ENTITY frac13 SDATA "[frac13]"--=fraction one-third-->
-<!ENTITY frac23 SDATA "[frac23]"--=fraction two-thirds-->
-<!ENTITY frac15 SDATA "[frac15]"--=fraction one-fifth-->
-<!ENTITY frac25 SDATA "[frac25]"--=fraction two-fifths-->
-<!ENTITY frac35 SDATA "[frac35]"--=fraction three-fifths-->
-<!ENTITY frac45 SDATA "[frac45]"--=fraction four-fifths-->
-<!ENTITY frac16 SDATA "[frac16]"--=fraction one-sixth-->
-<!ENTITY frac56 SDATA "[frac56]"--=fraction five-sixths-->
-<!ENTITY incare SDATA "[incare]"--=in-care-of symbol-->
-<!ENTITY block  SDATA "[block ]"--=full block-->
-<!ENTITY uhblk  SDATA "[uhblk ]"--=upper half block-->
-<!ENTITY lhblk  SDATA "[lhblk ]"--=lower half block-->
-<!ENTITY blk14  SDATA "[blk14 ]"--=25% shaded block-->
-<!ENTITY blk12  SDATA "[blk12 ]"--=50% shaded block-->
-<!ENTITY blk34  SDATA "[blk34 ]"--=75% shaded block-->
-<!ENTITY marker SDATA "[marker]"--=histogram marker-->
-<!ENTITY cir    SDATA "[cir   ]"--/circ B: =circle, open-->
-<!ENTITY squ    SDATA "[squ   ]"--=square, open-->
-<!ENTITY rect   SDATA "[rect  ]"--=rectangle, open-->
-<!ENTITY utri   SDATA "[utri  ]"--/triangle =up triangle, open-->
-<!ENTITY dtri   SDATA "[dtri  ]"--/triangledown =down triangle, open-->
-<!ENTITY star   SDATA "[star  ]"--=star, open-->
-<!ENTITY bull   SDATA "[bull  ]"--/bullet B: =round bullet, filled-->
-<!ENTITY squf   SDATA "[squf  ]"--/blacksquare =sq bullet, filled-->
-<!ENTITY utrif  SDATA "[utrif ]"--/blacktriangle =up tri, filled-->
-<!ENTITY dtrif  SDATA "[dtrif ]"--/blacktriangledown =dn tri, filled-->
-<!ENTITY ltrif  SDATA "[ltrif ]"--/blacktriangleleft R: =l tri, filled-->
-<!ENTITY rtrif  SDATA "[rtrif ]"--/blacktriangleright R: =r tri, filled-->
-<!ENTITY clubs  SDATA "[clubs ]"--/clubsuit =club suit symbol-->
-<!ENTITY diams  SDATA "[diams ]"--/diamondsuit =diamond suit symbol-->
-<!ENTITY hearts SDATA "[hearts]"--/heartsuit =heart suit symbol-->
-<!ENTITY spades SDATA "[spades]"--/spadesuit =spades suit symbol-->
-<!ENTITY malt   SDATA "[malt  ]"--/maltese =maltese cross-->
-<!ENTITY dagger SDATA "[dagger]"--/dagger B: =dagger-->
-<!ENTITY Dagger SDATA "[Dagger]"--/ddagger B: =double dagger-->
-<!ENTITY check  SDATA "[check ]"--/checkmark =tick, check mark-->
-<!ENTITY cross  SDATA "[ballot]"--=ballot cross-->
-<!ENTITY sharp  SDATA "[sharp ]"--/sharp =musical sharp-->
-<!ENTITY flat   SDATA "[flat  ]"--/flat =musical flat-->
-<!ENTITY male   SDATA "[male  ]"--=male symbol-->
-<!ENTITY female SDATA "[female]"--=female symbol-->
-<!ENTITY phone  SDATA "[phone ]"--=telephone symbol-->
-<!ENTITY telrec SDATA "[telrec]"--=telephone recorder symbol-->
-<!ENTITY copysr SDATA "[copysr]"--=sound recording copyright sign-->
-<!ENTITY caret  SDATA "[caret ]"--=caret (insertion mark)-->
-<!ENTITY lsquor SDATA "[lsquor]"--=rising single quote, left (low)-->
-<!ENTITY ldquor SDATA "[ldquor]"--=rising dbl quote, left (low)-->
-
-<!ENTITY fflig  SDATA "[fflig ]"--small ff ligature-->
-<!ENTITY filig  SDATA "[filig ]"--small fi ligature-->
-<!ENTITY fjlig  SDATA "[fjlig ]"--small fj ligature-->
-<!ENTITY ffilig SDATA "[ffilig]"--small ffi ligature-->
-<!ENTITY ffllig SDATA "[ffllig]"--small ffl ligature-->
-<!ENTITY fllig  SDATA "[fllig ]"--small fl ligature-->
-
-<!ENTITY mldr   SDATA "[mldr  ]"--em leader-->
-<!ENTITY rdquor SDATA "[rdquor]"--rising dbl quote, right (high)-->
-<!ENTITY rsquor SDATA "[rsquor]"--rising single quote, right (high)-->
-<!ENTITY vellip SDATA "[vellip]"--vertical ellipsis-->
-
-<!ENTITY hybull SDATA "[hybull]"--rectangle, filled (hyphen bullet)-->
-<!ENTITY loz    SDATA "[loz   ]"--/lozenge - lozenge or total mark-->
-<!ENTITY lozf   SDATA "[lozf  ]"--/blacklozenge - lozenge, filled-->
-<!ENTITY ltri   SDATA "[ltri  ]"--/triangleleft B: l triangle, open-->
-<!ENTITY rtri   SDATA "[rtri  ]"--/triangleright B: r triangle, open-->
-<!ENTITY starf  SDATA "[starf ]"--/bigstar - star, filled-->
-
-<!ENTITY natur  SDATA "[natur ]"--/natural - music natural-->
-<!ENTITY rx     SDATA "[rx    ]"--pharmaceutical prescription (Rx)-->
-<!ENTITY sext   SDATA "[sext  ]"--sextile (6-pointed star)-->
-
-<!ENTITY target SDATA "[target]"--register mark or target-->
-<!ENTITY dlcrop SDATA "[dlcrop]"--downward left crop mark -->
-<!ENTITY drcrop SDATA "[drcrop]"--downward right crop mark -->
-<!ENTITY ulcrop SDATA "[ulcrop]"--upward left crop mark -->
-<!ENTITY urcrop SDATA "[urcrop]"--upward right crop mark -->
diff --git a/Doc/sgml/iso/ISOtech b/Doc/sgml/iso/ISOtech
deleted file mode 100644
index cbda344..0000000
--- a/Doc/sgml/iso/ISOtech
+++ /dev/null
@@ -1,73 +0,0 @@
-<!-- (C) International Organization for Standardization 1986
-     Permission to copy in any form is granted for use with
-     conforming SGML systems and applications as defined in
-     ISO 8879, provided this notice is included in all copies.
--->
-<!-- Character entity set. Typical invocation:
-     <!ENTITY % ISOtech PUBLIC
-       "ISO 8879:1986//ENTITIES General Technical//EN">
-     %ISOtech;
--->
-<!ENTITY aleph  SDATA "[aleph ]"--/aleph =aleph, Hebrew-->
-<!ENTITY and    SDATA "[and   ]"--/wedge /land B: =logical and-->
-<!ENTITY ang90  SDATA "[ang90 ]"--=right (90 degree) angle-->
-<!ENTITY angsph SDATA "[angsph]"--/sphericalangle =angle-spherical-->
-<!ENTITY ap     SDATA "[ap    ]"--/approx R: =approximate-->
-<!ENTITY becaus SDATA "[becaus]"--/because R: =because-->
-<!ENTITY bottom SDATA "[bottom]"--/bot B: =perpendicular-->
-<!ENTITY cap    SDATA "[cap   ]"--/cap B: =intersection-->
-<!ENTITY cong   SDATA "[cong  ]"--/cong R: =congruent with-->
-<!ENTITY conint SDATA "[conint]"--/oint L: =contour integral operator-->
-<!ENTITY cup    SDATA "[cup   ]"--/cup B: =union or logical sum-->
-<!ENTITY equiv  SDATA "[equiv ]"--/equiv R: =identical with-->
-<!ENTITY exist  SDATA "[exist ]"--/exists =at least one exists-->
-<!ENTITY forall SDATA "[forall]"--/forall =for all-->
-<!ENTITY fnof   SDATA "[fnof  ]"--=function of (italic small f)-->
-<!ENTITY ge     SDATA "[ge    ]"--/geq /ge R: =greater-than-or-equal-->
-<!ENTITY iff    SDATA "[iff   ]"--/iff =if and only if-->
-<!ENTITY infin  SDATA "[infin ]"--/infty =infinity-->
-<!ENTITY int    SDATA "[int   ]"--/int L: =integral operator-->
-<!ENTITY isin   SDATA "[isin  ]"--/in R: =set membership-->
-<!ENTITY lang   SDATA "[lang  ]"--/langle O: =left angle bracket-->
-<!ENTITY lArr   SDATA "[lArr  ]"--/Leftarrow A: =is implied by-->
-<!ENTITY le     SDATA "[le    ]"--/leq /le R: =less-than-or-equal-->
-<!ENTITY minus  SDATA "[minus ]"--B: =minus sign-->
-<!ENTITY mnplus SDATA "[mnplus]"--/mp B: =minus-or-plus sign-->
-<!ENTITY nabla  SDATA "[nabla ]"--/nabla =del, Hamilton operator-->
-<!ENTITY ne     SDATA "[ne    ]"--/ne /neq R: =not equal-->
-<!ENTITY ni     SDATA "[ni    ]"--/ni /owns R: =contains-->
-<!ENTITY or     SDATA "[or    ]"--/vee /lor B: =logical or-->
-<!ENTITY par    SDATA "[par   ]"--/parallel R: =parallel-->
-<!ENTITY part   SDATA "[part  ]"--/partial =partial differential-->
-<!ENTITY permil SDATA "[permil]"--=per thousand-->
-<!ENTITY perp   SDATA "[perp  ]"--/perp R: =perpendicular-->
-<!ENTITY prime  SDATA "[prime ]"--/prime =prime or minute-->
-<!ENTITY Prime  SDATA "[Prime ]"--=double prime or second-->
-<!ENTITY prop   SDATA "[prop  ]"--/propto R: =is proportional to-->
-<!ENTITY radic  SDATA "[radic ]"--/surd =radical-->
-<!ENTITY rang   SDATA "[rang  ]"--/rangle C: =right angle bracket-->
-<!ENTITY rArr   SDATA "[rArr  ]"--/Rightarrow A: =implies-->
-<!ENTITY sim    SDATA "[sim   ]"--/sim R: =similar-->
-<!ENTITY sime   SDATA "[sime  ]"--/simeq R: =similar, equals-->
-<!ENTITY square SDATA "[square]"--/square B: =square-->
-<!ENTITY sub    SDATA "[sub   ]"--/subset R: =subset or is implied by-->
-<!ENTITY sube   SDATA "[sube  ]"--/subseteq R: =subset, equals-->
-<!ENTITY sup    SDATA "[sup   ]"--/supset R: =superset or implies-->
-<!ENTITY supe   SDATA "[supe  ]"--/supseteq R: =superset, equals-->
-<!ENTITY there4 SDATA "[there4]"--/therefore R: =therefore-->
-<!ENTITY Verbar SDATA "[Verbar]"--/Vert =dbl vertical bar-->
-
-<!ENTITY angst  SDATA "[angst ]"--Angstrom =capital A, ring-->
-<!ENTITY bernou SDATA "[bernou]"--Bernoulli function (script capital B)-->
-<!ENTITY compfn SDATA "[compfn]"--B: composite function (small circle)-->
-<!ENTITY Dot    SDATA "[Dot   ]"--=dieresis or umlaut mark-->
-<!ENTITY DotDot SDATA "[DotDot]"--four dots above-->
-<!ENTITY hamilt SDATA "[hamilt]"--Hamiltonian (script capital H)-->
-<!ENTITY lagran SDATA "[lagran]"--Lagrangian (script capital L)-->
-<!ENTITY lowast SDATA "[lowast]"--low asterisk-->
-<!ENTITY notin  SDATA "[notin ]"--N: negated set membership-->
-<!ENTITY order  SDATA "[order ]"--order of (script small o)-->
-<!ENTITY phmmat SDATA "[phmmat]"--physics M-matrix (script capital M)-->
-<!ENTITY tdot   SDATA "[tdot  ]"--three dots above-->
-<!ENTITY tprime SDATA "[tprime]"--triple prime-->
-<!ENTITY wedgeq SDATA "[wedgeq]"--R: corresponds to (wedge, equals)-->
diff --git a/Doc/sgml/iso/catalog b/Doc/sgml/iso/catalog
deleted file mode 100644
index ef79493..0000000
--- a/Doc/sgml/iso/catalog
+++ /dev/null
@@ -1,39 +0,0 @@
-PUBLIC "ISO 8879:1986//ENTITIES Added Math Symbols: Arrow Relations//EN"	ISOamsa
-PUBLIC "ISO 8879:1986//ENTITIES Added Math Symbols: Binary Operators//EN"	ISOamsb
-PUBLIC "ISO 8879:1986//ENTITIES Added Math Symbols: Delimiters//EN"	ISOamsc
-PUBLIC "ISO 8879:1986//ENTITIES Added Math Symbols: Ordinary//EN"	ISOamso
-PUBLIC "ISO 8879:1986//ENTITIES Added Math Symbols: Relations//EN"	ISOamsr
-PUBLIC "ISO 8879:1986//ENTITIES Added Math Symbols: Negated Relations//EN"	ISOamsn
-PUBLIC "ISO 8879:1986//ENTITIES Box and Line Drawing//EN"	ISObox
-PUBLIC "ISO 8879:1986//ENTITIES Russian Cyrillic//EN"	ISOcyr1
-PUBLIC "ISO 8879:1986//ENTITIES Non-Russian Cyrillic//EN"	ISOcyr2
-PUBLIC "ISO 8879:1986//ENTITIES Diacritical Marks//EN"	ISOdia
-PUBLIC "ISO 8879:1986//ENTITIES Greek Letters//EN"	ISOgrk1
-PUBLIC "ISO 8879:1986//ENTITIES Monotoniko Greek//EN"	ISOgrk2
-PUBLIC "ISO 8879:1986//ENTITIES Greek Symbols//EN"	ISOgrk3
-PUBLIC "ISO 8879:1986//ENTITIES Alternative Greek Symbols//EN"	ISOgrk4
-PUBLIC "ISO 8879:1986//ENTITIES Added Latin 1//EN"	ISOlat1
-PUBLIC "ISO 8879:1986//ENTITIES Added Latin 2//EN"	ISOlat2
-PUBLIC "ISO 8879:1986//ENTITIES Numeric and Special Graphic//EN"	ISOnum
-PUBLIC "ISO 8879:1986//ENTITIES Publishing//EN"	ISOpub
-PUBLIC "ISO 8879:1986//ENTITIES General Technical//EN"	ISOtech
-
-PUBLIC "ISO 8879-1986//ENTITIES Added Math Symbols: Arrow Relations//EN"	ISOamsa
-PUBLIC "ISO 8879-1986//ENTITIES Added Math Symbols: Binary Operators//EN"	ISOamsb
-PUBLIC "ISO 8879-1986//ENTITIES Added Math Symbols: Delimiters//EN"	ISOamsc
-PUBLIC "ISO 8879-1986//ENTITIES Added Math Symbols: Ordinary//EN"	ISOamso
-PUBLIC "ISO 8879-1986//ENTITIES Added Math Symbols: Relations//EN"	ISOamsr
-PUBLIC "ISO 8879-1986//ENTITIES Added Math Symbols: Negated Relations//EN"	ISOamsn
-PUBLIC "ISO 8879-1986//ENTITIES Box and Line Drawing//EN"	ISObox
-PUBLIC "ISO 8879-1986//ENTITIES Russian Cyrillic//EN"	ISOcyr1
-PUBLIC "ISO 8879-1986//ENTITIES Non-Russian Cyrillic//EN"	ISOcyr2
-PUBLIC "ISO 8879-1986//ENTITIES Diacritical Marks//EN"	ISOdia
-PUBLIC "ISO 8879-1986//ENTITIES Greek Letters//EN"	ISOgrk1
-PUBLIC "ISO 8879-1986//ENTITIES Monotoniko Greek//EN"	ISOgrk2
-PUBLIC "ISO 8879-1986//ENTITIES Greek Symbols//EN"	ISOgrk3
-PUBLIC "ISO 8879-1986//ENTITIES Alternative Greek Symbols//EN"	ISOgrk4
-PUBLIC "ISO 8879-1986//ENTITIES Added Latin 1//EN"	ISOlat1
-PUBLIC "ISO 8879-1986//ENTITIES Added Latin 2//EN"	ISOlat2
-PUBLIC "ISO 8879-1986//ENTITIES Numeric and Special Graphic//EN"	ISOnum
-PUBLIC "ISO 8879-1986//ENTITIES Publishing//EN"	ISOpub
-PUBLIC "ISO 8879-1986//ENTITIES General Technical//EN"	ISOtech
diff --git a/Doc/sgml/oasis/catalog b/Doc/sgml/oasis/catalog
deleted file mode 100644
index e4fe312..0000000
--- a/Doc/sgml/oasis/catalog
+++ /dev/null
@@ -1 +0,0 @@
-PUBLIC "-//OASIS//DTD Exchange Table Model 19960430//EN" "exchange.txt"
diff --git a/Doc/sgml/oasis/exchange.txt b/Doc/sgml/oasis/exchange.txt
deleted file mode 100644
index a6bbf02..0000000
--- a/Doc/sgml/oasis/exchange.txt
+++ /dev/null
@@ -1,301 +0,0 @@
-
-
-<!-- EXCHANGE TABLE MODEL DECLARATION MODULE -->
-
-<!-- This set of declarations defines the Exchange Table Model as of the
-     date shown in the Formal Public Identifier (FPI) for this entity.
-
-     This set of declarations may be referred to using a public external
-     entity declaration and reference as shown in the following two lines:
-
-<!ENTITY % calstbls PUBLIC "-//OASIS//DTD Exchange Table Model 19960430//EN">
-%calstbls;
-
-     If various parameter entities used within this set of declarations
-     are to be given non-default values, the appropriate declarations
-     should be given before calling in this package (i.e., before the
-     "%calstbls;" reference).
-
-     NOTE:  This set of declarations assumes a NAMELEN of 32 as is used in
-     the standard CALS defined SGML declaration.
--->
-
-<!-- This entity includes a set of element and attribute declarations
-     that partially defines the Exchange table model.  However, the model
-     is not well-defined without the accompanying natural language
-     description of the semantics (meanings) of these various elements,
-     attributes, and attribute values.  The semantic writeup, also available
-     from OASIS, should be used in conjunction with this entity.
--->
-
-<!-- In order to use the Exchange table model, various parameter entity
-     declarations are required.  A brief description is as follows:
-
-     ENTITY NAME      WHERE USED              WHAT IT IS
-
-     %bodyatt         In ATTLIST of:          Additional (non-table related)
-                      table element(s)        attributes on the overall
-                                              (wrapper) table element(s)
-
-     %yesorno         In ATTLIST of:          An attribute declared value
-                      almost all elements     for a "boolean" attribute
-
-     %titles          In content model of:    The "title" part of the model
-                      table element(s)        group for the table element(s)
-
-     %paracon         In content model of:    The "text" (logical content)
-                      <entry>                 of the model group for <entry>
-
-     %tbl.table.name  In declaration of:      The name(s) of the "table"
-                      table element(s)        element(s)
-
-     %tbl.table-titles.mdl In content model of: The model group for the title
-                      table elements(s)       part of the content model for
-                                              table element(s)
-
-     %tbl.table-main.mdl In content model of: The model group for the main part
-                      table elements(s)       (not including titles) of the
-                                              content model for table element(s)
-
-     %tbl.table.mdl   In content model of:    The model group for the content
-                      table elements(s)       model for table element(s),
-                                              often (and by default) defined
-                                              in terms of %tbl.table-titles.mdl
-                                              and %tbl.table-main.mdl
-
-     %tbl.table.excep In content model of:    The exceptions for the content
-                      table element(s)        model for table element(s)
-
-     %tbl.table.att   In ATTLIST of:          Additional attributes on the
-                      table element(s)        table element(s)
-
-     %tbl.tgroup.mdl  In content model of:    The model group for the content
-                      <tgroup>                model for <tgroup>
-
-     %tbl.tgroup.att  In ATTLIST of:          Additional attributes on the
-                      <tgroup>                <tgroup> element
-
-     %tbl.tbody.att   In ATTLIST of:          Additional attributes on the
-                      <tbody>                 <tbody> element
-
-     %tbl.colspec.att In ATTLIST of:          Additional attributes on the
-                      <colspec>               <colspec> element
-
-     %tbl.hdft.name   In declaration of:      The name(s) of the table
-                      head/foot element(s)    head and foot element(s)
-
-     %tbl.hdft.mdl    In content model of:    The model group for the content
-                      head/foot element(s)    model for head/foot element(s)
-
-     %tbl.hdft.excep  In content model of:    The exceptions for the content
-                      head/foot element(s)    model for head/foot element(s)
-
-     %tbl.hdft.att    In ATTLIST of:          Additional attributes on the
-                      head/foot element(s)    head/foot element(s)
-
-
-     %tbl.row.mdl     In content model of:    The model group for the content
-                      <row>                   model for <row>
-
-     %tbl.row.excep   In content model of:    The exceptions for the content
-                      <row>                   model for <row>
-
-     %tbl.row.att     In ATTLIST of:          Additional attributes on the
-                      <row>                   <row> element
-
-     %tbl.entry.mdl   In content model of:    The model group for the content
-                      <entry>                 model for <entry>
-
-     %tbl.entry.excep In content model of:    The exceptions for the content
-                      <entry>                 model for <entry>
-
-     %tbl.entry.att   In ATTLIST of:          Additional attributes on the
-                      <entry>                 <entry> element
-
-     This set of declarations will use the default definitions shown below
-     for any of these parameter entities that are not declared before this
-     set of declarations is referenced.
--->
-
-<!-- These definitions are not directly related to the table model, but are
-     used in the default CALS table model and may be defined elsewhere (and
-     prior to the inclusion of this table module) in the referencing DTD. -->
-
-<!ENTITY % bodyatt "">
-<!ENTITY % yesorno 'NUMBER'  -- no if zero(s),
-                                yes if any other digits value -->
-<!ENTITY % titles  'title?'>
-<!ENTITY % paracon '#PCDATA' -- default for use in entry content -->
-
-<!--
-The parameter entities as defined below change and simplify the CALS table
-model as published (as part of the Example DTD) in MIL-HDBK-28001.  The
-resulting simplified DTD has support from the OASIS vendors and is
-therefore more interoperable among different systems.
-
-These following declarations provide the Exchange default definitions
-for these entities.  However, these entities can be redefined (by giving
-the appropriate parameter entity declaration(s) prior to the reference
-to this Table Model declaration set entity) to fit the needs of the
-current application.
-
-Note, however, that changes may have significant effect on the ability to
-interchange table information.  These changes may manifest themselves
-in useability, presentation, and possible structure information degradation.
--->
-
-<!ENTITY % tbl.table.name       "table">
-<!ENTITY % tbl.table-titles.mdl "%titles;,">
-<!ENTITY % tbl.table-main.mdl   "tgroup+">
-<!ENTITY % tbl.table.mdl        "%tbl.table-titles.mdl; %tbl.table-main.mdl;">
-<!ENTITY % tbl.table.excep      "-(%tbl.table.name)">
-<!ENTITY % tbl.table.att        "
-    pgwide      %yesorno;       #IMPLIED ">
-<!ENTITY % tbl.tgroup.mdl       "colspec*,thead?,tbody">
-<!ENTITY % tbl.tgroup.att       "">
-<!ENTITY % tbl.tbody.att        "">
-<!ENTITY % tbl.colspec.att      "">
-<!ENTITY % tbl.hdft.name        "thead">
-<!ENTITY % tbl.hdft.mdl         "row+">
-<!ENTITY % tbl.hdft.excep       "">
-<!ENTITY % tbl.hdft.att         "">
-<!ENTITY % tbl.row.mdl          "entry+">
-<!ENTITY % tbl.row.excep        "">
-<!ENTITY % tbl.row.att          "">
-<!ENTITY % tbl.entry.mdl        "(%paracon;)*">
-<!ENTITY % tbl.entry.excep      "">
-<!ENTITY % tbl.entry.att        "">
-
-<!-- =====  Element and attribute declarations follow. =====  -->
-
-<!--
-     Default declarations previously defined in this entity and
-     referenced below include:
-     ENTITY % tbl.table.name       "table"
-     ENTITY % tbl.table-titles.mdl "%titles;,"
-     ENTITY % tbl.table-main.mdl   "tgroup+"
-     ENTITY % tbl.table.mdl        "%tbl.table-titles; %tbl.table-main.mdl;"
-     ENTITY % tbl.table.excep      "-(%tbl.table.name)"
-     ENTITY % tbl.table.att        "
-                        pgwide          %yesorno;       #IMPLIED "
--->
-
-<!ELEMENT %tbl.table.name; - - (%tbl.table.mdl;) %tbl.table.excep; >
-
-<!ATTLIST %tbl.table.name
-        frame           (top|bottom|topbot|all|sides|none)      #IMPLIED
-        colsep          %yesorno;                               #IMPLIED
-        rowsep          %yesorno;                               #IMPLIED
-        %tbl.table.att;
-        %bodyatt;
->
-
-<!--
-     Default declarations previously defined in this entity and
-     referenced below include:
-     ENTITY % tbl.tgroup.mdl    "colspec*,thead?,tbody"
-     ENTITY % tbl.tgroup.att    ""
--->
-
-<!ELEMENT tgroup - O (%tbl.tgroup.mdl;) >
-
-<!ATTLIST tgroup
-        cols            NUMBER                                  #REQUIRED
-        colsep          %yesorno;                               #IMPLIED
-        rowsep          %yesorno;                               #IMPLIED
-        align           (left|right|center|justify|char)        #IMPLIED
-        %tbl.tgroup.att;
->
-
-<!--
-     Default declarations previously defined in this entity and
-     referenced below include:
-     ENTITY % tbl.colspec.att   ""
--->
-
-<!ELEMENT colspec - O EMPTY >
-
-<!ATTLIST colspec
-        colnum          NUMBER                                  #IMPLIED
-        colname         NMTOKEN                                 #IMPLIED
-        colwidth        CDATA                                   #IMPLIED
-        colsep          %yesorno;                               #IMPLIED
-        rowsep          %yesorno;                               #IMPLIED
-        align           (left|right|center|justify|char)        #IMPLIED
-        char            CDATA                                   #IMPLIED
-        charoff         NUTOKEN                                 #IMPLIED
-        %tbl.colspec.att;
->
-
-<!--
-     Default declarations previously defined in this entity and
-     referenced below include:
-     ENTITY % tbl.hdft.name     "thead"
-     ENTITY % tbl.hdft.mdl      "row+"
-     ENTITY % tbl.hdft.excep    ""
-     ENTITY % tbl.hdft.att      ""
--->
-
-<!ELEMENT %tbl.hdft.name; - O (%tbl.hdft.mdl;)  %tbl.hdft.excep;>
-
-<!ATTLIST %tbl.hdft.name;
-        valign          (top|middle|bottom)                     #IMPLIED
-        %tbl.hdft.att;
->
-
-<!--
-     Default declarations previously defined in this entity and
-     referenced below include:
-     ENTITY % tbl.tbody.att     ""
--->
-
-<!ELEMENT tbody - O (row+)>
-
-<!ATTLIST tbody
-        valign          (top|middle|bottom)                     #IMPLIED
-        %tbl.tbody.att;
->
-
-<!--
-     Default declarations previously defined in this entity and
-     referenced below include:
-     ENTITY % tbl.row.mdl       "entry+"
-     ENTITY % tbl.row.excep     ""
-     ENTITY % tbl.row.att       ""
--->
-
-<!ELEMENT row - O (%tbl.row.mdl;) %tbl.row.excep;>
-
-<!ATTLIST row
-        rowsep          %yesorno;                               #IMPLIED
-        valign          (top|middle|bottom)                     #IMPLIED
-        %tbl.row.att;
->
-
-
-<!--
-     Default declarations previously defined in this entity and
-     referenced below include:
-     ENTITY % paracon           "#PCDATA"
-     ENTITY % tbl.entry.mdl     "(%paracon;)*"
-     ENTITY % tbl.entry.excep   ""
-     ENTITY % tbl.entry.att     ""
--->
-
-<!ELEMENT entry - O (%tbl.entry.mdl;) %tbl.entry.excep; >
-
-<!ATTLIST entry
-        colname         NMTOKEN                                 #IMPLIED
-        namest          NMTOKEN                                 #IMPLIED
-        nameend         NMTOKEN                                 #IMPLIED
-        morerows        NUMBER                                  #IMPLIED
-        colsep          %yesorno;                               #IMPLIED
-        rowsep          %yesorno;                               #IMPLIED
-        align           (left|right|center|justify|char)        #IMPLIED
-        char            CDATA                                   #IMPLIED
-        charoff         NUTOKEN                                 #IMPLIED
-        valign          (top|middle|bottom)                     #IMPLIED
-        %tbl.entry.att;
->
-
-
diff --git a/Doc/sgml/python.dtd b/Doc/sgml/python.dtd
deleted file mode 100644
index 51a88ce..0000000
--- a/Doc/sgml/python.dtd
+++ /dev/null
@@ -1,52 +0,0 @@
-<!ENTITY % common.att "
-	  id	ID	#IMPLIED
-	  role	NMTOKEN	#IMPLIED">
-
-<!ENTITY % descriptor.class "cfuncdesc | cvardesc | ctypedesc |
-                             classdesc | excdesc | funcdesc | datadesc |
-                             memberdesc | methoddesc | opcodedesc">
-
-<!-- include the OASIS Exchange Table Model -->
-<!ENTITY oasis-tables.mod
-	  PUBLIC "-//OASIS//DTD Exchange Table Model 19960430//EN">
-&oasis-tables.mod;
-
-<!-- define the &version; general entity -->
-<!ENTITY python-version.ent
-	  PUBLIC "+//IDN python.org//ENTITIES Python Version//EN">
-&python-version.ent;
-
-<!ELEMENT input - - EMPTY>
-<!ATTLIST input
-	  %common.att;
-          xml:link #FIXED "simple"
-          show CDATA "embed"
-          embed CDATA "auto"
-          source CDATA #REQUIRED>
-
-<!ELEMENT (function|constant) - - (#PCDATA)>
-<!ATTLIST (function|constant)
-	  %common.att;
-	  index (index|noindex) noindex
-	  module CDATA #IMPLIED>
-
-<!ELEMENT method - - (#PCDATA)>
-<!ATTLIST method
-	  %common.att;
-	  index (index|noindex) noindex
-	  module CDATA #IMPLIED
-	  class CDATA #IMPLIED>
-
-<!ELEMENT module - - (#PCDATA)>
-<!ATTLIST module
-	  %common.att;
-	  link (link|nolink) nolink
-	  package CDATA #IMPLIED>
-
-<!ELEMENT signature - - (name, super*, args?)>
-<!ELEMENT name      - - (#PCDATA)>
-<!ELEMENT super     - - (#PCDATA)>
-<!ELEMENT args      - - (#PCDATA)>
-
-<!ELEMENT %descriptor.class; - - (sig+, description)>
-<!ELEMENT description        - - (%para.mix;)>
diff --git a/Doc/sgml/version.ent b/Doc/sgml/version.ent
deleted file mode 100644
index c6259b1..0000000
--- a/Doc/sgml/version.ent
+++ /dev/null
@@ -1,2 +0,0 @@
-<!-- Version number for the Python interpreter -->
-<!ENTITY version CDATA "1.5">
-- 
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