texdraw non-update

git-svn-id: svn://tug.org/texlive/trunk@31894 c570f23f-e606-0410-a88d-b1316a301751

24 files changed, 5872 insertions, 7161 deletions

diff --git a/Master/texmf-dist/doc/support/texdraw/ChangeLog b/Master/texmf-dist/doc/support/texdraw/ChangeLog
new file mode 100644
index 00000000000..8e7942e19ff
--- /dev/null
+++ b/Master/texmf-dist/doc/support/texdraw/ChangeLog
@@ -0,0 +1,37 @@
+$Id: ChangeLog,v 2.0 1995/12/18 texdraw-V2R0 $
+
+V2R0  1995/12/17
+  - Interface to standard LaTeX2e graphics package
+
+V1R5c  1995/11/03
+  - Fix version number reporting
+  - Modify LaTeX example for LaTeX2e
+  - Fix compilation of texindex
+  - Remove longstanding spurious character in blockdiagram.tex
+
+V1R5  1993/04/10
+  - Fix \lpatt; it was only passing the first element of the pattern,
+    reported by Alex Stark (jas2@eng.cam.ac.uk).
+  - Added \fellip and \everytexdraw at the suggestion of Karl Berry
+    (karl@cs.umb.edu)
+  - Changes to documentation
+  - More docs on porting to other drivers
+
+V1R4a 1992/07/07
+  - Removed a lingering space in \pixtobp
+  - Fix incorrect position when "move pending" AND "path in prgress"
+  - Repackage \special for easier porting to other systems
+
+V1R3  1991/05/08
+  - Track pending moves to give a smaller PS file
+  - Added a path in progress flag
+
+V1R2  1991/04/21
+  - Improved \intdiv with more precise results
+
+V1R1  1991/04/16
+  - Macro names changed for compatibility with LaTeX
+  - EPSF style PostScript
+
+V1R0  1991/02/24
+  - First version with revision control
diff --git a/Master/texmf-dist/doc/support/texdraw/README b/Master/texmf-dist/doc/support/texdraw/README
new file mode 100644
index 00000000000..91cced49d63
--- /dev/null
+++ b/Master/texmf-dist/doc/support/texdraw/README
@@ -0,0 +1,170 @@
+This file describes the contents of the distribution for TeXdraw
+
+$Id: README,v 2.0 1995/12/18 texdraw-V2R0 $
+
+The TeXdraw package consists of a set of macro definitions for the TeX
+typesetting program.  These macros allow the user to produce PostScript
+drawings from within TeX and LaTeX.
+
+The main benefits of TeXdraw accrue from the ability to produce drawings
+from <within> TeX, using TeX fonts for labelling the drawing.
+
+Basic drawing features include:
+(1) moves, lines and arrow vectors
+    - selectable gray level, line width pattern, arrowhead size and type
+(2) circles, ellipses, arcs, and Bezier curves
+(3) general fill command to fill a region defined by lines and Bezier
+    curves (selectable gray level)
+(4) TeX text, including mathematics, can be positioned and superimposed
+    on the drawing
+
+TeXdraw has been designed to be extensible.  Drawing "segments" are
+relocatable, self-contained units.  Using a combination of the begingroup/
+endgroup mechanism in TeX and the gsave/grestore mechanism in PostScript,
+drawing segments allow for local changes to the scaling and line
+parameters.  Using TeX's macro definition capability, new drawing commands
+can be constructed from drawing segments.
+
+The extensibility features include,
+(1) relocatable drawing segments to keep changes local
+(2) local segment scaling
+(3) saving and restoring positions using symbolic positions
+
+The compressed file texdraw-V2R0.tar.Z is available for anonymous ftp on
+ftp.TSP.EE.McGill.CA in directory /pub/tsp/texdraw.
+
+=====
+Peter Kabal                            kabal@TSP.EE.McGill.CA
+Department of Electrical Engineering
+McGill University
+Montreal, Quebec
+
+
+=====
+The distribution consists of the TeXdraw macros themselves, files with
+auxiliary macros, and the TeXdraw manual (texinfo format, also as a
+PostScript file).
+
+Distribution Contents:
+----------------------
+
+Miscellaneous:
+  README              - this file
+  ChangeLog           - log of changes to TeXdraw
+
+TeXdraw macros (main directory):
+  texdraw.tex         - TeXdraw macros for TeX
+  texdraw.sty         - LaTeX2e interface to TeXdraw
+  txdtools.tex        - TeXdraw toolbox for extending TeXdraw
+  txdps.tex           - TeXdraw macros for accessing PostScript macros
+  blockdiagram.tex    - Block diagram macros for TeXdraw
+  txdexamp.tex        - plain TeX code for the examples in the manual
+  txdexamp.latex      - LaTeX2e code for the examples in the manual
+
+compacted TeXdraw macros (directory compact/):
+  texdraw.tex
+  txdtools.tex
+  txdps.tex
+
+TeXdraw documentation (directory manual/):
+  texdraw.ps          - PostScript version of the manual
+  texdraw.texi        - Texinfo source file for the TeXdraw manual
+  texdraw.aux         - cross-references (generated by an earlier run, used
+                        as input when TeX'ing the manual)
+  texdraw.cps         - concept index (generated by an earlier run, used as
+                        input when TeX'ing the manual)
+  texdraw.fns         - sorted functon index (generated by an earlier run,
+                        used as input when TeX'ing the manual).
+
+GNU Texinfo utilities (directory manual/):
+  texindex.c          - Source for the texindex program
+  getopt.h            - Include file for texindex.c
+  texinfo.tex         - Texinfo macros used to make manuals and on-line
+                        documentation
+  texi2dvi            - Script to run TeX and texindex
+
+===============================================
+The following notes on setup are for Unix systems.
+
+Initial Tests:
+
+(1) Print the PostScript version of the manual ("texdraw.ps") to see the
+    capabilities of TeXdraw.
+(2) Try TeX'ing the examples file.  Assuming plain TeX is invoked with the
+    command "tex" and LaTeX2e is invoked with the command "latex"
+    % tex txdexamp
+    ... or ...
+    % latex texdexamp.latex
+(3) Printing the examples using the appropriate printer driver program (only
+    dvips can be used with the plain TeX version of the examples),
+    % dvips txdexamp
+
+=====
+Permanent Setup:
+
+Compact source files:
+In the subdirectory "compact", there are versions of the macro files
+with most comments and white space removed.
+
+(1) Private copy of TeXdraw.
+    Move the TeXdraw sources files ("texdraw.sty", texdraw.tex",
+    "txdtools.tex" and "txdps.tex") to an appropriate directory.  If you are
+    keeping private versions of the files, consider using the directory
+    ~mylogin/tex . With many versions of TeX, including this directory in
+    the TeX input path variable (the environment variable TEXINPUTS) allows
+    you to refer to the files in TeX without specifying the full pathname.
+    With the C-cshell, a line in the ".login" file sets the environment
+    variable TEXINPUTS
+    % setenv TEXINPUTS ".:$HOME/tex:".
+    The last part of the path string should terminate with a colon to have
+    the default directory of TeX files available.
+(2) Public copy of TeXdraw.
+    Move the TeXdraw source files ("texdraw.sty", "texdraw.tex",
+    "txdtools.tex" and "txdps.tex") to a directory that TeX searches by
+    default.  This might be a directory such as "/usr/local/lib/tex/inputs".
+    Newer versions of TeX allow subdirectory searching - in that case, use
+    the directory "/usr/local/lib/tex/inputs/TeXdraw".
+
+=====
+The following instructions pertain to installing the ability to use the
+Texinfo system for any texinfo type manual.
+(1) The GNU program "texindex" should built using
+    % cc texindex.c -o texindex
+    Move the program to an appropriate place such as "/usr/local/bin".
+(2) The GNU script "texi2dvi" runs TeX and texindex for a texinfo file.
+    Move this script to an appropriate place such as "/usr/local/bin".
+(3) The GNU "texinfo.tex" file should go into the public directories
+    searched by TeX, for instance "/usr/local/lib/tex/inputs", or
+    "/usr/local/lib/tex/inputs/texinfo".
+
+=====
+Creating a TeXdraw manual from the sources:
+(1) Make sure "texdraw.tex", "txdtools.tex" and "texinfo.tex" will be found
+    by TeX.
+(2) To create the manual, you have to TeX the manual twice - the second
+    time to access the sorted indices and the cross-references.  The
+    program "texindex" sorts the indices.  (The distribution includes pre-
+    sorted indices that can be used).  The three steps can be replaced by
+    an invokation of the script "texi2dvi".
+    % tex texdraw.texinfo
+    % texindex texdraw
+    % tex texdraw.texinfo
+(3) If you have the printer driver program dvips, a PostScript version of the
+    manual is created as follows.
+    % dvips texdraw -o texdraw.ps
+
+=====
+On-line info manual:
+
+Consider building an info version of the manual.  For this you need the
+GNU program "makeinfo" (available by anonymous ftp from prep.ai.mit.edu
+as part of texinfo-XXX.tar.gz).  After running "makeinfo texdraw", the top
+level info directory file "dir" in /usr/local/emacs/info needs to be
+updated to include a menu entry for TeXdraw.  This entry is of the form
+* TeXdraw: (texdraw).
+		TeXdraw is a collection of macros that allow drawings to be
+                created from within TeX.
+Also the files produced by makeinfo (texdraw, texdraw-1, texdraw-2, and
+texdraw-3) need to be moved there.  The info file can be read from within
+the emacs editor, or with the info reader program "info" (also part of the
+texinfo distribution).
diff --git a/Master/texmf-dist/doc/support/texdraw/getopt.c b/Master/texmf-dist/doc/support/texdraw/getopt.c
deleted file mode 100644
index 36ebf5c5b03..00000000000
--- a/Master/texmf-dist/doc/support/texdraw/getopt.c
+++ /dev/null
@@ -1,762 +0,0 @@
-/* Getopt for GNU.
-   NOTE: getopt is now part of the C library, so if you don't know what
-   "Keep this file name-space clean" means, talk to roland@gnu.ai.mit.edu
-   before changing it!
-
-   Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94, 95
-   	Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published by the
-   Free Software Foundation; either version 2, or (at your option) any
-   later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
-
-/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
-   Ditto for AIX 3.2 and <stdlib.h>.  */
-#ifndef _NO_PROTO
-#define _NO_PROTO
-#endif
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#if !defined (__STDC__) || !__STDC__
-/* This is a separate conditional since some stdc systems
-   reject `defined (const)'.  */
-#ifndef const
-#define const
-#endif
-#endif
-
-#include <stdio.h>
-
-/* Comment out all this code if we are using the GNU C Library, and are not
-   actually compiling the library itself.  This code is part of the GNU C
-   Library, but also included in many other GNU distributions.  Compiling
-   and linking in this code is a waste when using the GNU C library
-   (especially if it is a shared library).  Rather than having every GNU
-   program understand `configure --with-gnu-libc' and omit the object files,
-   it is simpler to just do this in the source for each such file.  */
-
-#if defined (_LIBC) || !defined (__GNU_LIBRARY__)
-
-
-/* This needs to come after some library #include
-   to get __GNU_LIBRARY__ defined.  */
-#ifdef	__GNU_LIBRARY__
-/* Don't include stdlib.h for non-GNU C libraries because some of them
-   contain conflicting prototypes for getopt.  */
-#include <stdlib.h>
-#endif	/* GNU C library.  */
-
-/* This is for other GNU distributions with internationalized messages.
-   The GNU C Library itself does not yet support such messages.  */
-#if HAVE_LIBINTL_H
-# include <libintl.h>
-#else
-# define gettext(msgid) (msgid)
-#endif
-
-/* This version of `getopt' appears to the caller like standard Unix `getopt'
-   but it behaves differently for the user, since it allows the user
-   to intersperse the options with the other arguments.
-
-   As `getopt' works, it permutes the elements of ARGV so that,
-   when it is done, all the options precede everything else.  Thus
-   all application programs are extended to handle flexible argument order.
-
-   Setting the environment variable POSIXLY_CORRECT disables permutation.
-   Then the behavior is completely standard.
-
-   GNU application programs can use a third alternative mode in which
-   they can distinguish the relative order of options and other arguments.  */
-
-#include "getopt.h"
-
-/* For communication from `getopt' to the caller.
-   When `getopt' finds an option that takes an argument,
-   the argument value is returned here.
-   Also, when `ordering' is RETURN_IN_ORDER,
-   each non-option ARGV-element is returned here.  */
-
-char *optarg = NULL;
-
-/* Index in ARGV of the next element to be scanned.
-   This is used for communication to and from the caller
-   and for communication between successive calls to `getopt'.
-
-   On entry to `getopt', zero means this is the first call; initialize.
-
-   When `getopt' returns EOF, this is the index of the first of the
-   non-option elements that the caller should itself scan.
-
-   Otherwise, `optind' communicates from one call to the next
-   how much of ARGV has been scanned so far.  */
-
-/* XXX 1003.2 says this must be 1 before any call.  */
-int optind = 0;
-
-/* The next char to be scanned in the option-element
-   in which the last option character we returned was found.
-   This allows us to pick up the scan where we left off.
-
-   If this is zero, or a null string, it means resume the scan
-   by advancing to the next ARGV-element.  */
-
-static char *nextchar;
-
-/* Callers store zero here to inhibit the error message
-   for unrecognized options.  */
-
-int opterr = 1;
-
-/* Set to an option character which was unrecognized.
-   This must be initialized on some systems to avoid linking in the
-   system's own getopt implementation.  */
-
-int optopt = '?';
-
-/* Describe how to deal with options that follow non-option ARGV-elements.
-
-   If the caller did not specify anything,
-   the default is REQUIRE_ORDER if the environment variable
-   POSIXLY_CORRECT is defined, PERMUTE otherwise.
-
-   REQUIRE_ORDER means don't recognize them as options;
-   stop option processing when the first non-option is seen.
-   This is what Unix does.
-   This mode of operation is selected by either setting the environment
-   variable POSIXLY_CORRECT, or using `+' as the first character
-   of the list of option characters.
-
-   PERMUTE is the default.  We permute the contents of ARGV as we scan,
-   so that eventually all the non-options are at the end.  This allows options
-   to be given in any order, even with programs that were not written to
-   expect this.
-
-   RETURN_IN_ORDER is an option available to programs that were written
-   to expect options and other ARGV-elements in any order and that care about
-   the ordering of the two.  We describe each non-option ARGV-element
-   as if it were the argument of an option with character code 1.
-   Using `-' as the first character of the list of option characters
-   selects this mode of operation.
-
-   The special argument `--' forces an end of option-scanning regardless
-   of the value of `ordering'.  In the case of RETURN_IN_ORDER, only
-   `--' can cause `getopt' to return EOF with `optind' != ARGC.  */
-
-static enum
-{
-  REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
-} ordering;
-
-/* Value of POSIXLY_CORRECT environment variable.  */
-static char *posixly_correct;
-
-#ifdef	__GNU_LIBRARY__
-/* We want to avoid inclusion of string.h with non-GNU libraries
-   because there are many ways it can cause trouble.
-   On some systems, it contains special magic macros that don't work
-   in GCC.  */
-#include <string.h>
-#define	my_index	strchr
-#else
-
-/* Avoid depending on library functions or files
-   whose names are inconsistent.  */
-
-char *getenv ();
-
-static char *
-my_index (str, chr)
-     const char *str;
-     int chr;
-{
-  while (*str)
-    {
-      if (*str == chr)
-	return (char *) str;
-      str++;
-    }
-  return 0;
-}
-
-/* If using GCC, we can safely declare strlen this way.
-   If not using GCC, it is ok not to declare it.  */
-#ifdef __GNUC__
-/* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h.
-   That was relevant to code that was here before.  */
-#if !defined (__STDC__) || !__STDC__
-/* gcc with -traditional declares the built-in strlen to return int,
-   and has done so at least since version 2.4.5. -- rms.  */
-extern int strlen (const char *);
-#endif /* not __STDC__ */
-#endif /* __GNUC__ */
-
-#endif /* not __GNU_LIBRARY__ */
-
-/* Handle permutation of arguments.  */
-
-/* Describe the part of ARGV that contains non-options that have
-   been skipped.  `first_nonopt' is the index in ARGV of the first of them;
-   `last_nonopt' is the index after the last of them.  */
-
-static int first_nonopt;
-static int last_nonopt;
-
-/* Exchange two adjacent subsequences of ARGV.
-   One subsequence is elements [first_nonopt,last_nonopt)
-   which contains all the non-options that have been skipped so far.
-   The other is elements [last_nonopt,optind), which contains all
-   the options processed since those non-options were skipped.
-
-   `first_nonopt' and `last_nonopt' are relocated so that they describe
-   the new indices of the non-options in ARGV after they are moved.  */
-
-static void
-exchange (argv)
-     char **argv;
-{
-  int bottom = first_nonopt;
-  int middle = last_nonopt;
-  int top = optind;
-  char *tem;
-
-  /* Exchange the shorter segment with the far end of the longer segment.
-     That puts the shorter segment into the right place.
-     It leaves the longer segment in the right place overall,
-     but it consists of two parts that need to be swapped next.  */
-
-  while (top > middle && middle > bottom)
-    {
-      if (top - middle > middle - bottom)
-	{
-	  /* Bottom segment is the short one.  */
-	  int len = middle - bottom;
-	  register int i;
-
-	  /* Swap it with the top part of the top segment.  */
-	  for (i = 0; i < len; i++)
-	    {
-	      tem = argv[bottom + i];
-	      argv[bottom + i] = argv[top - (middle - bottom) + i];
-	      argv[top - (middle - bottom) + i] = tem;
-	    }
-	  /* Exclude the moved bottom segment from further swapping.  */
-	  top -= len;
-	}
-      else
-	{
-	  /* Top segment is the short one.  */
-	  int len = top - middle;
-	  register int i;
-
-	  /* Swap it with the bottom part of the bottom segment.  */
-	  for (i = 0; i < len; i++)
-	    {
-	      tem = argv[bottom + i];
-	      argv[bottom + i] = argv[middle + i];
-	      argv[middle + i] = tem;
-	    }
-	  /* Exclude the moved top segment from further swapping.  */
-	  bottom += len;
-	}
-    }
-
-  /* Update records for the slots the non-options now occupy.  */
-
-  first_nonopt += (optind - last_nonopt);
-  last_nonopt = optind;
-}
-
-/* Initialize the internal data when the first call is made.  */
-
-static const char *
-_getopt_initialize (optstring)
-     const char *optstring;
-{
-  /* Start processing options with ARGV-element 1 (since ARGV-element 0
-     is the program name); the sequence of previously skipped
-     non-option ARGV-elements is empty.  */
-
-  first_nonopt = last_nonopt = optind = 1;
-
-  nextchar = NULL;
-
-  posixly_correct = getenv ("POSIXLY_CORRECT");
-
-  /* Determine how to handle the ordering of options and nonoptions.  */
-
-  if (optstring[0] == '-')
-    {
-      ordering = RETURN_IN_ORDER;
-      ++optstring;
-    }
-  else if (optstring[0] == '+')
-    {
-      ordering = REQUIRE_ORDER;
-      ++optstring;
-    }
-  else if (posixly_correct != NULL)
-    ordering = REQUIRE_ORDER;
-  else
-    ordering = PERMUTE;
-
-  return optstring;
-}
-
-/* Scan elements of ARGV (whose length is ARGC) for option characters
-   given in OPTSTRING.
-
-   If an element of ARGV starts with '-', and is not exactly "-" or "--",
-   then it is an option element.  The characters of this element
-   (aside from the initial '-') are option characters.  If `getopt'
-   is called repeatedly, it returns successively each of the option characters
-   from each of the option elements.
-
-   If `getopt' finds another option character, it returns that character,
-   updating `optind' and `nextchar' so that the next call to `getopt' can
-   resume the scan with the following option character or ARGV-element.
-
-   If there are no more option characters, `getopt' returns `EOF'.
-   Then `optind' is the index in ARGV of the first ARGV-element
-   that is not an option.  (The ARGV-elements have been permuted
-   so that those that are not options now come last.)
-
-   OPTSTRING is a string containing the legitimate option characters.
-   If an option character is seen that is not listed in OPTSTRING,
-   return '?' after printing an error message.  If you set `opterr' to
-   zero, the error message is suppressed but we still return '?'.
-
-   If a char in OPTSTRING is followed by a colon, that means it wants an arg,
-   so the following text in the same ARGV-element, or the text of the following
-   ARGV-element, is returned in `optarg'.  Two colons mean an option that
-   wants an optional arg; if there is text in the current ARGV-element,
-   it is returned in `optarg', otherwise `optarg' is set to zero.
-
-   If OPTSTRING starts with `-' or `+', it requests different methods of
-   handling the non-option ARGV-elements.
-   See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
-
-   Long-named options begin with `--' instead of `-'.
-   Their names may be abbreviated as long as the abbreviation is unique
-   or is an exact match for some defined option.  If they have an
-   argument, it follows the option name in the same ARGV-element, separated
-   from the option name by a `=', or else the in next ARGV-element.
-   When `getopt' finds a long-named option, it returns 0 if that option's
-   `flag' field is nonzero, the value of the option's `val' field
-   if the `flag' field is zero.
-
-   The elements of ARGV aren't really const, because we permute them.
-   But we pretend they're const in the prototype to be compatible
-   with other systems.
-
-   LONGOPTS is a vector of `struct option' terminated by an
-   element containing a name which is zero.
-
-   LONGIND returns the index in LONGOPT of the long-named option found.
-   It is only valid when a long-named option has been found by the most
-   recent call.
-
-   If LONG_ONLY is nonzero, '-' as well as '--' can introduce
-   long-named options.  */
-
-int
-_getopt_internal (argc, argv, optstring, longopts, longind, long_only)
-     int argc;
-     char *const *argv;
-     const char *optstring;
-     const struct option *longopts;
-     int *longind;
-     int long_only;
-{
-  optarg = NULL;
-
-  if (optind == 0)
-    {
-      optstring = _getopt_initialize (optstring);
-      optind = 1;		/* Don't scan ARGV[0], the program name.  */
-    }
-
-  if (nextchar == NULL || *nextchar == '\0')
-    {
-      /* Advance to the next ARGV-element.  */
-
-      if (ordering == PERMUTE)
-	{
-	  /* If we have just processed some options following some non-options,
-	     exchange them so that the options come first.  */
-
-	  if (first_nonopt != last_nonopt && last_nonopt != optind)
-	    exchange ((char **) argv);
-	  else if (last_nonopt != optind)
-	    first_nonopt = optind;
-
-	  /* Skip any additional non-options
-	     and extend the range of non-options previously skipped.  */
-
-	  while (optind < argc
-		 && (argv[optind][0] != '-' || argv[optind][1] == '\0'))
-	    optind++;
-	  last_nonopt = optind;
-	}
-
-      /* The special ARGV-element `--' means premature end of options.
-	 Skip it like a null option,
-	 then exchange with previous non-options as if it were an option,
-	 then skip everything else like a non-option.  */
-
-      if (optind != argc && !strcmp (argv[optind], "--"))
-	{
-	  optind++;
-
-	  if (first_nonopt != last_nonopt && last_nonopt != optind)
-	    exchange ((char **) argv);
-	  else if (first_nonopt == last_nonopt)
-	    first_nonopt = optind;
-	  last_nonopt = argc;
-
-	  optind = argc;
-	}
-
-      /* If we have done all the ARGV-elements, stop the scan
-	 and back over any non-options that we skipped and permuted.  */
-
-      if (optind == argc)
-	{
-	  /* Set the next-arg-index to point at the non-options
-	     that we previously skipped, so the caller will digest them.  */
-	  if (first_nonopt != last_nonopt)
-	    optind = first_nonopt;
-	  return EOF;
-	}
-
-      /* If we have come to a non-option and did not permute it,
-	 either stop the scan or describe it to the caller and pass it by.  */
-
-      if ((argv[optind][0] != '-' || argv[optind][1] == '\0'))
-	{
-	  if (ordering == REQUIRE_ORDER)
-	    return EOF;
-	  optarg = argv[optind++];
-	  return 1;
-	}
-
-      /* We have found another option-ARGV-element.
-	 Skip the initial punctuation.  */
-
-      nextchar = (argv[optind] + 1
-		  + (longopts != NULL && argv[optind][1] == '-'));
-    }
-
-  /* Decode the current option-ARGV-element.  */
-
-  /* Check whether the ARGV-element is a long option.
-
-     If long_only and the ARGV-element has the form "-f", where f is
-     a valid short option, don't consider it an abbreviated form of
-     a long option that starts with f.  Otherwise there would be no
-     way to give the -f short option.
-
-     On the other hand, if there's a long option "fubar" and
-     the ARGV-element is "-fu", do consider that an abbreviation of
-     the long option, just like "--fu", and not "-f" with arg "u".
-
-     This distinction seems to be the most useful approach.  */
-
-  if (longopts != NULL
-      && (argv[optind][1] == '-'
-	  || (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1])))))
-    {
-      char *nameend;
-      const struct option *p;
-      const struct option *pfound = NULL;
-      int exact = 0;
-      int ambig = 0;
-      int indfound;
-      int option_index;
-
-      for (nameend = nextchar; *nameend && *nameend != '='; nameend++)
-	/* Do nothing.  */ ;
-
-      /* Test all long options for either exact match
-	 or abbreviated matches.  */
-      for (p = longopts, option_index = 0; p->name; p++, option_index++)
-	if (!strncmp (p->name, nextchar, nameend - nextchar))
-	  {
-	    if (nameend - nextchar == strlen (p->name))
-	      {
-		/* Exact match found.  */
-		pfound = p;
-		indfound = option_index;
-		exact = 1;
-		break;
-	      }
-	    else if (pfound == NULL)
-	      {
-		/* First nonexact match found.  */
-		pfound = p;
-		indfound = option_index;
-	      }
-	    else
-	      /* Second or later nonexact match found.  */
-	      ambig = 1;
-	  }
-
-      if (ambig && !exact)
-	{
-	  if (opterr)
-	    fprintf (stderr, gettext ("%s: option `%s' is ambiguous\n"),
-		     argv[0], argv[optind]);
-	  nextchar += strlen (nextchar);
-	  optind++;
-	  return '?';
-	}
-
-      if (pfound != NULL)
-	{
-	  option_index = indfound;
-	  optind++;
-	  if (*nameend)
-	    {
-	      /* Don't test has_arg with >, because some C compilers don't
-		 allow it to be used on enums.  */
-	      if (pfound->has_arg)
-		optarg = nameend + 1;
-	      else
-		{
-		  if (opterr)
-		   if (argv[optind - 1][1] == '-')
-		    /* --option */
-		    fprintf (stderr,
-		     gettext ("%s: option `--%s' doesn't allow an argument\n"),
-		     argv[0], pfound->name);
-		   else
-		    /* +option or -option */
-		    fprintf (stderr,
-		     gettext ("%s: option `%c%s' doesn't allow an argument\n"),
-		     argv[0], argv[optind - 1][0], pfound->name);
-
-		  nextchar += strlen (nextchar);
-		  return '?';
-		}
-	    }
-	  else if (pfound->has_arg == 1)
-	    {
-	      if (optind < argc)
-		optarg = argv[optind++];
-	      else
-		{
-		  if (opterr)
-		    fprintf (stderr,
-			   gettext ("%s: option `%s' requires an argument\n"),
-			   argv[0], argv[optind - 1]);
-		  nextchar += strlen (nextchar);
-		  return optstring[0] == ':' ? ':' : '?';
-		}
-	    }
-	  nextchar += strlen (nextchar);
-	  if (longind != NULL)
-	    *longind = option_index;
-	  if (pfound->flag)
-	    {
-	      *(pfound->flag) = pfound->val;
-	      return 0;
-	    }
-	  return pfound->val;
-	}
-
-      /* Can't find it as a long option.  If this is not getopt_long_only,
-	 or the option starts with '--' or is not a valid short
-	 option, then it's an error.
-	 Otherwise interpret it as a short option.  */
-      if (!long_only || argv[optind][1] == '-'
-	  || my_index (optstring, *nextchar) == NULL)
-	{
-	  if (opterr)
-	    {
-	      if (argv[optind][1] == '-')
-		/* --option */
-		fprintf (stderr, gettext ("%s: unrecognized option `--%s'\n"),
-			 argv[0], nextchar);
-	      else
-		/* +option or -option */
-		fprintf (stderr, gettext ("%s: unrecognized option `%c%s'\n"),
-			 argv[0], argv[optind][0], nextchar);
-	    }
-	  nextchar = (char *) "";
-	  optind++;
-	  return '?';
-	}
-    }
-
-  /* Look at and handle the next short option-character.  */
-
-  {
-    char c = *nextchar++;
-    char *temp = my_index (optstring, c);
-
-    /* Increment `optind' when we start to process its last character.  */
-    if (*nextchar == '\0')
-      ++optind;
-
-    if (temp == NULL || c == ':')
-      {
-	if (opterr)
-	  {
-	    if (posixly_correct)
-	      /* 1003.2 specifies the format of this message.  */
-	      fprintf (stderr, gettext ("%s: illegal option -- %c\n"),
-		       argv[0], c);
-	    else
-	      fprintf (stderr, gettext ("%s: invalid option -- %c\n"),
-		       argv[0], c);
-	  }
-	optopt = c;
-	return '?';
-      }
-    if (temp[1] == ':')
-      {
-	if (temp[2] == ':')
-	  {
-	    /* This is an option that accepts an argument optionally.  */
-	    if (*nextchar != '\0')
-	      {
-		optarg = nextchar;
-		optind++;
-	      }
-	    else
-	      optarg = NULL;
-	    nextchar = NULL;
-	  }
-	else
-	  {
-	    /* This is an option that requires an argument.  */
-	    if (*nextchar != '\0')
-	      {
-		optarg = nextchar;
-		/* If we end this ARGV-element by taking the rest as an arg,
-		   we must advance to the next element now.  */
-		optind++;
-	      }
-	    else if (optind == argc)
-	      {
-		if (opterr)
-		  {
-		    /* 1003.2 specifies the format of this message.  */
-		    fprintf (stderr,
-			   gettext ("%s: option requires an argument -- %c\n"),
-			   argv[0], c);
-		  }
-		optopt = c;
-		if (optstring[0] == ':')
-		  c = ':';
-		else
-		  c = '?';
-	      }
-	    else
-	      /* We already incremented `optind' once;
-		 increment it again when taking next ARGV-elt as argument.  */
-	      optarg = argv[optind++];
-	    nextchar = NULL;
-	  }
-      }
-    return c;
-  }
-}
-
-int
-getopt (argc, argv, optstring)
-     int argc;
-     char *const *argv;
-     const char *optstring;
-{
-  return _getopt_internal (argc, argv, optstring,
-			   (const struct option *) 0,
-			   (int *) 0,
-			   0);
-}
-
-#endif	/* _LIBC or not __GNU_LIBRARY__.  */
-
-#ifdef TEST
-
-/* Compile with -DTEST to make an executable for use in testing
-   the above definition of `getopt'.  */
-
-int
-main (argc, argv)
-     int argc;
-     char **argv;
-{
-  int c;
-  int digit_optind = 0;
-
-  while (1)
-    {
-      int this_option_optind = optind ? optind : 1;
-
-      c = getopt (argc, argv, "abc:d:0123456789");
-      if (c == EOF)
-	break;
-
-      switch (c)
-	{
-	case '0':
-	case '1':
-	case '2':
-	case '3':
-	case '4':
-	case '5':
-	case '6':
-	case '7':
-	case '8':
-	case '9':
-	  if (digit_optind != 0 && digit_optind != this_option_optind)
-	    printf ("digits occur in two different argv-elements.\n");
-	  digit_optind = this_option_optind;
-	  printf ("option %c\n", c);
-	  break;
-
-	case 'a':
-	  printf ("option a\n");
-	  break;
-
-	case 'b':
-	  printf ("option b\n");
-	  break;
-
-	case 'c':
-	  printf ("option c with value `%s'\n", optarg);
-	  break;
-
-	case '?':
-	  break;
-
-	default:
-	  printf ("?? getopt returned character code 0%o ??\n", c);
-	}
-    }
-
-  if (optind < argc)
-    {
-      printf ("non-option ARGV-elements: ");
-      while (optind < argc)
-	printf ("%s ", argv[optind++]);
-      printf ("\n");
-    }
-
-  exit (0);
-}
-
-#endif /* TEST */
diff --git a/Master/texmf-dist/doc/support/texdraw/getopt.h b/Master/texmf-dist/doc/support/texdraw/getopt.h
deleted file mode 100644
index 952f4830d3d..00000000000
--- a/Master/texmf-dist/doc/support/texdraw/getopt.h
+++ /dev/null
@@ -1,129 +0,0 @@
-/* Declarations for getopt.
-   Copyright (C) 1989, 90, 91, 92, 93, 94 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published by the
-   Free Software Foundation; either version 2, or (at your option) any
-   later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
-
-#ifndef _GETOPT_H
-#define _GETOPT_H 1
-
-#ifdef	__cplusplus
-extern "C" {
-#endif
-
-/* For communication from `getopt' to the caller.
-   When `getopt' finds an option that takes an argument,
-   the argument value is returned here.
-   Also, when `ordering' is RETURN_IN_ORDER,
-   each non-option ARGV-element is returned here.  */
-
-extern char *optarg;
-
-/* Index in ARGV of the next element to be scanned.
-   This is used for communication to and from the caller
-   and for communication between successive calls to `getopt'.
-
-   On entry to `getopt', zero means this is the first call; initialize.
-
-   When `getopt' returns EOF, this is the index of the first of the
-   non-option elements that the caller should itself scan.
-
-   Otherwise, `optind' communicates from one call to the next
-   how much of ARGV has been scanned so far.  */
-
-extern int optind;
-
-/* Callers store zero here to inhibit the error message `getopt' prints
-   for unrecognized options.  */
-
-extern int opterr;
-
-/* Set to an option character which was unrecognized.  */
-
-extern int optopt;
-
-/* Describe the long-named options requested by the application.
-   The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
-   of `struct option' terminated by an element containing a name which is
-   zero.
-
-   The field `has_arg' is:
-   no_argument		(or 0) if the option does not take an argument,
-   required_argument	(or 1) if the option requires an argument,
-   optional_argument 	(or 2) if the option takes an optional argument.
-
-   If the field `flag' is not NULL, it points to a variable that is set
-   to the value given in the field `val' when the option is found, but
-   left unchanged if the option is not found.
-
-   To have a long-named option do something other than set an `int' to
-   a compiled-in constant, such as set a value from `optarg', set the
-   option's `flag' field to zero and its `val' field to a nonzero
-   value (the equivalent single-letter option character, if there is
-   one).  For long options that have a zero `flag' field, `getopt'
-   returns the contents of the `val' field.  */
-
-struct option
-{
-#if defined (__STDC__) && __STDC__
-  const char *name;
-#else
-  char *name;
-#endif
-  /* has_arg can't be an enum because some compilers complain about
-     type mismatches in all the code that assumes it is an int.  */
-  int has_arg;
-  int *flag;
-  int val;
-};
-
-/* Names for the values of the `has_arg' field of `struct option'.  */
-
-#define	no_argument		0
-#define required_argument	1
-#define optional_argument	2
-
-#if defined (__STDC__) && __STDC__
-#ifdef __GNU_LIBRARY__
-/* Many other libraries have conflicting prototypes for getopt, with
-   differences in the consts, in stdlib.h.  To avoid compilation
-   errors, only prototype getopt for the GNU C library.  */
-extern int getopt (int argc, char *const *argv, const char *shortopts);
-#else /* not __GNU_LIBRARY__ */
-extern int getopt ();
-#endif /* __GNU_LIBRARY__ */
-extern int getopt_long (int argc, char *const *argv, const char *shortopts,
-		        const struct option *longopts, int *longind);
-extern int getopt_long_only (int argc, char *const *argv,
-			     const char *shortopts,
-		             const struct option *longopts, int *longind);
-
-/* Internal only.  Users should not call this directly.  */
-extern int _getopt_internal (int argc, char *const *argv,
-			     const char *shortopts,
-		             const struct option *longopts, int *longind,
-			     int long_only);
-#else /* not __STDC__ */
-extern int getopt ();
-extern int getopt_long ();
-extern int getopt_long_only ();
-
-extern int _getopt_internal ();
-#endif /* __STDC__ */
-
-#ifdef	__cplusplus
-}
-#endif
-
-#endif /* _GETOPT_H */
diff --git a/Master/texmf-dist/doc/support/texdraw/texdraw.pdf b/Master/texmf-dist/doc/support/texdraw/texdraw.pdf
deleted file mode 100644
index a29240227f0..00000000000
--- a/Master/texmf-dist/doc/support/texdraw/texdraw.pdf
+++ /dev/null
diff --git a/Master/texmf-dist/doc/support/texdraw/texdraw.ps b/Master/texmf-dist/doc/support/texdraw/texdraw.ps
new file mode 100644
index 00000000000..8af929ecb6a
--- /dev/null
+++ b/Master/texmf-dist/doc/support/texdraw/texdraw.ps
@@ -0,0 +1,5665 @@
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+%%Creator: dvipsk 5.515a Copyright 1986, 1993 Radical Eye Software
+%%Title: texdraw.dvi
+%%Pages: 60
+%%PageOrder: Ascend
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+b Fa(.)e(.)g(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)
+h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)g(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h
+(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)24 b Ft(26)299 2154
+y(5.2.1)44 b(Scaling)15 b Fa(.)8 b(.)f(.)h(.)g(.)f(.)h(.)f(.)h(.)f(.)h
+(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)
+h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)g(.)f(.)h(.)f(.)h(.)f(.)h
+(.)29 b Ft(26)299 2216 y(5.2.2)44 b(Resolution)13 b Fa(.)8
+b(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)g
+(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)
+h(.)f(.)h(.)f(.)h(.)f(.)h(.)27 b Ft(27)299 2279 y(5.2.3)44
+b(T)l(ext)15 b(placemen)o(t)7 b Fa(.)h(.)f(.)h(.)g(.)f(.)h(.)f(.)h(.)f
+(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)
+f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)g(.)f(.)22 b
+Ft(27)299 2341 y(5.2.4)44 b(The)15 b(in)o(termediate)h(P)o(ostScript)f
+(\014le)g Fa(.)7 b(.)h(.)f(.)h(.)f(.)h(.)g(.)f(.)h(.)f(.)h(.)f(.)h(.)f
+(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)29 b Ft(28)149 2403
+y(5.3)45 b(Ho)o(w)15 b(T)382 2413 y(E)407 2403 y(Xdra)o(w)g(merges)f
+(graphics)i(and)g(text)d Fa(.)8 b(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f
+(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)29
+b Ft(28)0 2528 y Fs(App)r(endix)24 b(A)67 b(P)n(ostScript)24
+b(Commands)5 b Fb(.)10 b(.)f(.)h(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)f(.)
+h(.)g(.)g(.)g(.)28 b Fs(31)p eop
+%%Page: -2 60
+-2 59 bop 0 -83 a Ft(ii)1744 b(T)1793 -73 y(E)1819 -83
+y(Xdra)o(w)0 17 y Fs(App)r(endix)24 b(B)67 b(T)460 30
+y(E)496 17 y(Xdra)n(w)22 b(T)-6 b(o)r(olb)r(o)n(x)19
+b Fb(.)9 b(.)h(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)f(.)h(.)g(.)g(.)g(.)g(.)g
+(.)g(.)g(.)g(.)f(.)41 b Fs(35)149 94 y Ft(B.1)k(Co)q(ordinate)16
+b(parsing)f Fa(.)7 b(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)
+h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)g(.)f(.)h(.)f(.)h
+(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)30 b Ft(35)149
+157 y(B.2)45 b(Real)17 b(arithmetic)7 b Fa(.)h(.)g(.)f(.)h(.)f(.)h(.)f
+(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)g(.)f(.)h(.)f(.)h(.)f(.)
+h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f
+(.)h(.)f(.)h(.)f(.)23 b Ft(36)149 219 y(B.3)45 b(Arro)o(w)15
+b(curv)o(e)7 b Fa(.)g(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f
+(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)g(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)
+h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f
+(.)h(.)22 b Ft(36)0 344 y Fs(App)r(endix)i(C)67 b(Examples)13
+b Fb(.)e(.)f(.)g(.)g(.)g(.)g(.)f(.)h(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)f(.)
+h(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)f(.)h(.)g(.)g(.)36
+b Fs(39)149 421 y Ft(C.1)45 b(Blo)q(c)o(k)16 b(diagram)f(of)g(a)g
+(lattice)g(\014lter)10 b Fa(.)e(.)g(.)f(.)h(.)g(.)f(.)h(.)f(.)h(.)f(.)h
+(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)
+h(.)f(.)h(.)25 b Ft(39)149 484 y(C.2)45 b(Filter)16 b(resp)q(onse)g
+(graph)e Fa(.)7 b(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h
+(.)g(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)
+f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)30 b Ft(42)149 546
+y(C.3)45 b(Geometric)15 b(construction)t Fa(.)8 b(.)g(.)f(.)h(.)f(.)h
+(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)g(.)
+f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)f(.)h(.)19
+b Ft(44)0 670 y Fs(App)r(endix)24 b(D)67 b(Alphab)r(etic)24
+b(listing)g(of)e(commands)7 b Fb(.)j(.)f(.)h(.)g(.)g(.)g(.)30
+b Fs(47)0 811 y(Command)22 b(Index)10 b Fb(.)h(.)f(.)g(.)g(.)g(.)g(.)f
+(.)h(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)f(.)h(.)g(.)g(.)g(.)g(.)g(.)g(.)
+g(.)f(.)h(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)f(.)h(.)33
+b Fs(53)0 951 y(Concept)22 b(Index)11 b Fb(.)g(.)f(.)g(.)g(.)g(.)g(.)g
+(.)f(.)h(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)f(.)h(.)g(.)g(.)g(.)g(.)g(.)g(.)
+g(.)g(.)f(.)h(.)g(.)g(.)g(.)g(.)g(.)g(.)g(.)f(.)h(.)g(.)g(.)34
+b Fs(55)p eop
+%%Trailer
+end
+userdict /end-hook known{end-hook}if
+%%EOF
diff --git a/Master/texmf-dist/doc/support/texdraw/texdraw_1.html b/Master/texmf-dist/doc/support/texdraw/texdraw_1.html
deleted file mode 100644
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@@ -1,82 +0,0 @@
-<HTML>
-<HEAD>
-<!-- Created by texi2html 1.56k from texdraw.texi on 10 March 2004 -->
-
-<TITLE>TeXdraw - 1. Introduction</TITLE>
-</HEAD>
-<BODY>
-Go to the first, previous, <A HREF="texdraw_2.html">next</A>, <A HREF="texdraw_11.html">last</A> section, <A HREF="texdraw_toc.html">table of contents</A>.
-<P><HR><P>
-
-
-<H1><A NAME="SEC1" HREF="texdraw_toc.html#TOC1">1. Introduction</A></H1>
-
-<P>
-TeX is a powerful typesetting program which allows for complex text
-layouts but by itself lacks a general graphics capability.  However,
-when coupled with an appropriate printer driver program, external
-graphics files can be inserted into the printed document.  In this mode,
-TeX is instructed to leave space for a drawing.  The drawing is
-inserted by the printer driver program.  The TeXdraw macros described
-here generate the external graphics file from within TeX and generate
-the instructions to the the print driver program to position the
-graphics at the appropriate position on the page.
-
-
-<P>
-TeXdraw consists of a set of TeX macros that create line drawings
-and other figures.  The drawing primitives include solid lines,
-patterned lines, Bezier curves, circles and arrows.  Other commands
-allow for the filling of a region with a gray level.  The drawing
-commands generate PostScript code.  This limits TeXdraw to systems
-which use PostScript printers.  TeXdraw also provides commands to
-position TeX text, including mathematics, on the drawing.  The final
-drawing, with text and graphics, can be positioned on the page like any
-other TeX box.
-
-
-<P>
-<A NAME="IDX1"></A>
-<A NAME="IDX2"></A>
-<A NAME="IDX3"></A>
-The basic TeXdraw macros for TeX use the <CODE>\special</CODE> syntax
-recognized by the printer driver program <CODE>dvips</CODE>.  However, when
-invoked as a LaTeX2e package, the TeXdraw macros can be used with
-any of the PostScript printer driver programs supported by the standard
-<CODE>graphics</CODE> package for LaTeX2e.
-
-
-<P>
-The basic TeXdraw macros provide only simple drawing commands.
-However, TeXdraw provides a drawing segment environment which allows
-parameter changes and coordinate scaling changes to be kept local to the
-drawing segment.  This facility, together with TeX's macro
-capabilities allows one to modularize drawing units and extend
-TeXdraw by building more complex graphics entities from simpler
-elements.
-
-
-
-<UL>
-<LI><A HREF="texdraw_1.html#SEC2">Distribution</A>
-</UL>
-
-
-
-<H2><A NAME="SEC2" HREF="texdraw_toc.html#TOC2">1.1 Distribution information</A></H2>
-<P>
-<A NAME="IDX4"></A>
-
-
-<P>
-The TeXdraw routines are provided free of charge without warranty of
-any kind.  Note that the TeXdraw routines are copyrighted.  They may
-be distributed freely provided that the recipients also acquire the
-right to distribute them freely.  The notices to this effect must be
-preserved when the source files are distributed.
-
-
-<P><HR><P>
-Go to the first, previous, <A HREF="texdraw_2.html">next</A>, <A HREF="texdraw_11.html">last</A> section, <A HREF="texdraw_toc.html">table of contents</A>.
-</BODY>
-</HTML>
diff --git a/Master/texmf-dist/doc/support/texdraw/texdraw_10.html b/Master/texmf-dist/doc/support/texdraw/texdraw_10.html
deleted file mode 100644
index faa705634dd..00000000000
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@@ -1,126 +0,0 @@
-<HTML>
-<HEAD>
-<!-- Created by texi2html 1.56k from texdraw.texi on 10 March 2004 -->
-
-<TITLE>TeXdraw - Command Index</TITLE>
-</HEAD>
-<BODY>
-Go to the <A HREF="texdraw_1.html">first</A>, <A HREF="texdraw_9.html">previous</A>, <A HREF="texdraw_11.html">next</A>, <A HREF="texdraw_11.html">last</A> section, <A HREF="texdraw_toc.html">table of contents</A>.
-<P><HR><P>
-
-
-<H1><A NAME="SEC40" HREF="texdraw_toc.html#TOC40">Command Index</A></H1>
-<P>
-Jump to:
-<A HREF="#findex_\">\</A>
--
-<A HREF="#findex_a">a</A>
--
-<A HREF="#findex_c">c</A>
--
-<A HREF="#findex_f">f</A>
--
-<A HREF="#findex_l">l</A>
--
-<A HREF="#findex_m">m</A>
--
-<A HREF="#findex_n">n</A>
--
-<A HREF="#findex_s">s</A>
-<P>
-<H2><A NAME="findex_\">\</A></H2>
-<DIR>
-<LI><A HREF="texdraw_2.html#IDX63">\arc</A>
-<LI><A HREF="texdraw_2.html#IDX44">\arrowheadsize</A>
-<LI><A HREF="texdraw_2.html#IDX43">\arrowheadtype</A>
-<LI><A HREF="texdraw_2.html#IDX30">\avec</A>
-<LI><A HREF="texdraw_2.html#IDX13">\begin{texdraw}</A>
-<LI><A HREF="texdraw_3.html#IDX74">\bsegment</A>
-<LI><A HREF="texdraw_2.html#IDX11">\btexdraw</A>
-<LI><A HREF="texdraw_2.html#IDX15">\centertexdraw</A>
-<LI><A HREF="texdraw_2.html#IDX66">\clvec</A>
-<LI><A HREF="texdraw_7.html#IDX177">\cossin</A>
-<LI><A HREF="texdraw_7.html#IDX176">\currentpos</A>
-<LI><A HREF="texdraw_3.html#IDX94">\drawbb</A>
-<LI><A HREF="texdraw_2.html#IDX22">\drawdim</A>
-<LI><A HREF="texdraw_2.html#IDX14">\end{texdraw}</A>
-<LI><A HREF="texdraw_3.html#IDX75">\esegment</A>
-<LI><A HREF="texdraw_2.html#IDX12">\etexdraw</A>
-<LI><A HREF="texdraw_2.html#IDX16">\everytexdraw</A>
-<LI><A HREF="texdraw_2.html#IDX60">\fcir</A>
-<LI><A HREF="texdraw_2.html#IDX62">\fellip</A>
-<LI><A HREF="texdraw_7.html#IDX175">\getpos</A>
-<LI><A HREF="texdraw_2.html#IDX46">\htext</A>
-<LI><A HREF="texdraw_2.html#IDX71">\ifill</A>
-<LI><A HREF="texdraw_2.html#IDX59">\lcir</A>
-<LI><A HREF="texdraw_2.html#IDX61">\lellip</A>
-<LI><A HREF="texdraw_2.html#IDX70">\lfill</A>
-<LI><A HREF="texdraw_2.html#IDX41">\linewd</A>
-<LI><A HREF="texdraw_2.html#IDX29">\lvec</A>
-<LI><A HREF="texdraw_2.html#IDX28">\move</A>
-<LI><A HREF="texdraw_6.html#IDX164">\PSarc</A>
-<LI><A HREF="texdraw_6.html#IDX166">\PSarcn</A>
-<LI><A HREF="texdraw_6.html#IDX153">\PSclosepath</A>
-<LI><A HREF="texdraw_6.html#IDX155">\PSfill</A>
-<LI><A HREF="texdraw_6.html#IDX159">\PSlineto</A>
-<LI><A HREF="texdraw_6.html#IDX161">\PSmoveto</A>
-<LI><A HREF="texdraw_6.html#IDX151">\PSnewpath</A>
-<LI><A HREF="texdraw_6.html#IDX141">\PSsetlinecap</A>
-<LI><A HREF="texdraw_6.html#IDX143">\PSsetlinejoin</A>
-<LI><A HREF="texdraw_6.html#IDX149">\PSstroke</A>
-<LI><A HREF="texdraw_2.html#IDX34">\ravec</A>
-<LI><A HREF="texdraw_7.html#IDX179">\realadd</A>
-<LI><A HREF="texdraw_7.html#IDX181">\realdiv</A>
-<LI><A HREF="texdraw_7.html#IDX180">\realmult</A>
-<LI><A HREF="texdraw_3.html#IDX92">\relsegscale</A>
-<LI><A HREF="texdraw_3.html#IDX90">\relunitscale</A>
-<LI><A HREF="texdraw_2.html#IDX33">\rlvec</A>
-<LI><A HREF="texdraw_2.html#IDX32">\rmove</A>
-<LI><A HREF="texdraw_2.html#IDX53">\rtext</A>
-<LI><A HREF="texdraw_3.html#IDX83">\savecurrpos</A>
-<LI><A HREF="texdraw_3.html#IDX84">\savepos</A>
-<LI><A HREF="texdraw_2.html#IDX42">\setgray</A>
-<LI><A HREF="texdraw_3.html#IDX91">\setsegscale</A>
-<LI><A HREF="texdraw_3.html#IDX89">\setunitscale</A>
-<LI><A HREF="texdraw_2.html#IDX54">\textref</A>
-<LI><A HREF="texdraw_7.html#IDX178">\vectlen</A>
-<LI><A HREF="texdraw_2.html#IDX50">\vtext</A>
-<LI><A HREF="texdraw_6.html#IDX167">\writeps</A>
-</DIR>
-<H2><A NAME="findex_a">a</A></H2>
-<DIR>
-<LI><A HREF="texdraw_6.html#IDX163">arc</A>
-<LI><A HREF="texdraw_6.html#IDX165">arcn</A>
-</DIR>
-<H2><A NAME="findex_c">c</A></H2>
-<DIR>
-<LI><A HREF="texdraw_6.html#IDX152">closepath</A>
-</DIR>
-<H2><A NAME="findex_f">f</A></H2>
-<DIR>
-<LI><A HREF="texdraw_6.html#IDX154">fill</A>
-</DIR>
-<H2><A NAME="findex_l">l</A></H2>
-<DIR>
-<LI><A HREF="texdraw_6.html#IDX158">lineto</A>
-</DIR>
-<H2><A NAME="findex_m">m</A></H2>
-<DIR>
-<LI><A HREF="texdraw_6.html#IDX160">moveto</A>
-</DIR>
-<H2><A NAME="findex_n">n</A></H2>
-<DIR>
-<LI><A HREF="texdraw_6.html#IDX150">newpath</A>
-</DIR>
-<H2><A NAME="findex_s">s</A></H2>
-<DIR>
-<LI><A HREF="texdraw_6.html#IDX140">setlinecap</A>
-<LI><A HREF="texdraw_6.html#IDX142">setlinejoin</A>
-<LI><A HREF="texdraw_6.html#IDX148">stroke</A>
-</DIR>
-
-
-<P><HR><P>
-Go to the <A HREF="texdraw_1.html">first</A>, <A HREF="texdraw_9.html">previous</A>, <A HREF="texdraw_11.html">next</A>, <A HREF="texdraw_11.html">last</A> section, <A HREF="texdraw_toc.html">table of contents</A>.
-</BODY>
-</HTML>
diff --git a/Master/texmf-dist/doc/support/texdraw/texdraw_11.html b/Master/texmf-dist/doc/support/texdraw/texdraw_11.html
deleted file mode 100644
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--- a/Master/texmf-dist/doc/support/texdraw/texdraw_11.html
+++ /dev/null
@@ -1,205 +0,0 @@
-<HTML>
-<HEAD>
-<!-- Created by texi2html 1.56k from texdraw.texi on 10 March 2004 -->
-
-<TITLE>TeXdraw - Concept Index</TITLE>
-</HEAD>
-<BODY>
-Go to the <A HREF="texdraw_1.html">first</A>, <A HREF="texdraw_10.html">previous</A>, next, last section, <A HREF="texdraw_toc.html">table of contents</A>.
-<P><HR><P>
-
-
-<H1><A NAME="SEC41" HREF="texdraw_toc.html#TOC41">Concept Index</A></H1>
-<P>
-Jump to:
-<A HREF="#cindex_a">a</A>
--
-<A HREF="#cindex_b">b</A>
--
-<A HREF="#cindex_c">c</A>
--
-<A HREF="#cindex_d">d</A>
--
-<A HREF="#cindex_e">e</A>
--
-<A HREF="#cindex_f">f</A>
--
-<A HREF="#cindex_g">g</A>
--
-<A HREF="#cindex_i">i</A>
--
-<A HREF="#cindex_l">l</A>
--
-<A HREF="#cindex_m">m</A>
--
-<A HREF="#cindex_o">o</A>
--
-<A HREF="#cindex_p">p</A>
--
-<A HREF="#cindex_r">r</A>
--
-<A HREF="#cindex_s">s</A>
--
-<A HREF="#cindex_t">t</A>
--
-<A HREF="#cindex_u">u</A>
--
-<A HREF="#cindex_v">v</A>
--
-<A HREF="#cindex_w">w</A>
--
-<A HREF="#cindex_x">x</A>
-<P>
-<H2><A NAME="cindex_a">a</A></H2>
-<DIR>
-<LI><A HREF="texdraw_2.html#IDX5">accessing TeXdraw</A>, <A HREF="texdraw_4.html#IDX97">accessing TeXdraw</A>
-<LI><A HREF="texdraw_7.html#IDX170">angle of a vector</A>
-<LI><A HREF="texdraw_2.html#IDX58">arcs</A>, <A HREF="texdraw_6.html#IDX162">arcs</A>
-<LI><A HREF="texdraw_2.html#IDX40">arrowhead parameters</A>
-<LI><A HREF="texdraw_2.html#IDX25">arrows</A>
-</DIR>
-<H2><A NAME="cindex_b">b</A></H2>
-<DIR>
-<LI><A HREF="texdraw_2.html#IDX64">Bezier curves</A>
-</DIR>
-<H2><A NAME="cindex_c">c</A></H2>
-<DIR>
-<LI><A HREF="texdraw_2.html#IDX55">circles</A>
-<LI><A HREF="texdraw_2.html#IDX17">command syntax</A>
-<LI><A HREF="texdraw_7.html#IDX168">coordinate parsing</A>
-<LI><A HREF="texdraw_2.html#IDX20">coordinate specification</A>
-<LI><A HREF="texdraw_3.html#IDX81">coordinate, symbolic</A>
-<LI><A HREF="texdraw_2.html#IDX19">coordinates</A>
-<LI><A HREF="texdraw_7.html#IDX172">cosine of a vector direction</A>
-<LI><A HREF="texdraw_2.html#IDX27">current position</A>, <A HREF="texdraw_3.html#IDX95">current position</A>, <A HREF="texdraw_7.html#IDX169">current position</A>
-<LI><A HREF="texdraw_6.html#IDX147">current position in PostScript</A>
-<LI><A HREF="texdraw_2.html#IDX65">curves</A>
-</DIR>
-<H2><A NAME="cindex_d">d</A></H2>
-<DIR>
-<LI><A HREF="texdraw_2.html#IDX37">dashed lines</A>
-<LI><A HREF="texdraw_7.html#IDX171">direction of a line</A>
-<LI><A HREF="texdraw_1.html#IDX4">distribution</A>
-<LI><A HREF="texdraw_2.html#IDX38">dotted lines</A>
-<LI><A HREF="texdraw_3.html#IDX73">drawing segments</A>
-<LI><A HREF="texdraw_4.html#IDX106"><CODE>dvi2ps</CODE> printer driver</A>
-<LI><A HREF="texdraw_4.html#IDX107"><CODE>dvialw</CODE> printer driver</A>
-<LI><A HREF="texdraw_4.html#IDX108"><CODE>dvilaser</CODE> printer driver</A>
-<LI><A HREF="texdraw_1.html#IDX1"><CODE>dvips</CODE> printer driver</A>, <A HREF="texdraw_4.html#IDX104"><CODE>dvips</CODE> printer driver</A>, <A HREF="texdraw_5.html#IDX134"><CODE>dvips</CODE> printer driver</A>
-<LI><A HREF="texdraw_4.html#IDX109"><CODE>dvipsone</CODE> printer driver</A>
-<LI><A HREF="texdraw_4.html#IDX111"><CODE>dvitops</CODE> printer driver</A>
-<LI><A HREF="texdraw_4.html#IDX110"><CODE>dviwindo</CODE> printer driver</A>
-</DIR>
-<H2><A NAME="cindex_e">e</A></H2>
-<DIR>
-<LI><A HREF="texdraw_2.html#IDX57">ellipses</A>
-<LI><A HREF="texdraw_5.html#IDX126">Encapsulated PostScript File</A>
-<LI><A HREF="texdraw_5.html#IDX120">errors while using TeXdraw</A>
-<LI><A HREF="texdraw_7.html#IDX182">example, arrow curve</A>
-<LI><A HREF="texdraw_8.html#IDX183">example, block diagram</A>
-<LI><A HREF="texdraw_8.html#IDX185">example, circle and ellipse</A>
-<LI><A HREF="texdraw_8.html#IDX184">example, graph</A>
-</DIR>
-<H2><A NAME="cindex_f">f</A></H2>
-<DIR>
-<LI><A HREF="texdraw_3.html#IDX76">fill operations, interaction with drawing segments</A>
-<LI><A HREF="texdraw_2.html#IDX56">filled circles</A>
-<LI><A HREF="texdraw_2.html#IDX67">filling regions</A>, <A HREF="texdraw_6.html#IDX145">filling regions</A>
-</DIR>
-<H2><A NAME="cindex_g">g</A></H2>
-<DIR>
-<LI><A HREF="texdraw_1.html#IDX3"><CODE>graphics</CODE> package</A>, <A HREF="texdraw_2.html#IDX10"><CODE>graphics</CODE> package</A>, <A HREF="texdraw_4.html#IDX103"><CODE>graphics</CODE> package</A>, <A HREF="texdraw_5.html#IDX131"><CODE>graphics</CODE> package</A>
-<LI><A HREF="texdraw_5.html#IDX127">graphics placement</A>
-<LI><A HREF="texdraw_2.html#IDX39">gray levels for lines</A>
-</DIR>
-<H2><A NAME="cindex_i">i</A></H2>
-<DIR>
-<LI><A HREF="texdraw_5.html#IDX121">implementation</A>
-<LI><A HREF="texdraw_3.html#IDX96">initial current position</A>
-<LI><A HREF="texdraw_2.html#IDX6">invoking TeXdraw</A>, <A HREF="texdraw_4.html#IDX98">invoking TeXdraw</A>
-</DIR>
-<H2><A NAME="cindex_l">l</A></H2>
-<DIR>
-<LI><A HREF="texdraw_1.html#IDX2">LaTeX</A>, <A HREF="texdraw_2.html#IDX8">LaTeX</A>, <A HREF="texdraw_4.html#IDX99">LaTeX</A>
-<LI><A HREF="texdraw_7.html#IDX174">length of a vector</A>
-<LI><A HREF="texdraw_6.html#IDX138">line cap</A>
-<LI><A HREF="texdraw_6.html#IDX139">line join</A>
-<LI><A HREF="texdraw_2.html#IDX35">line width</A>
-<LI><A HREF="texdraw_2.html#IDX23">lines</A>, <A HREF="texdraw_6.html#IDX156">lines</A>
-<LI><A HREF="texdraw_9.html#IDX186">listing of commands</A>
-</DIR>
-<H2><A NAME="cindex_m">m</A></H2>
-<DIR>
-<LI><A HREF="texdraw_2.html#IDX26">moves</A>, <A HREF="texdraw_6.html#IDX157">moves</A>
-</DIR>
-<H2><A NAME="cindex_o">o</A></H2>
-<DIR>
-<LI><A HREF="texdraw_4.html#IDX112"><CODE>oztex</CODE> printer driver</A>
-</DIR>
-<H2><A NAME="cindex_p">p</A></H2>
-<DIR>
-<LI><A HREF="texdraw_2.html#IDX68">painting regions</A>
-<LI><A HREF="texdraw_2.html#IDX69">paths</A>, <A HREF="texdraw_3.html#IDX77">paths</A>, <A HREF="texdraw_6.html#IDX146">paths</A>
-<LI><A HREF="texdraw_4.html#IDX115"><CODE>pctexps</CODE> printer driver</A>
-<LI><A HREF="texdraw_4.html#IDX116"><CODE>pctexwin</CODE> printer driver</A>
-<LI><A HREF="texdraw_5.html#IDX129">placement of graphics and text</A>
-<LI><A HREF="texdraw_2.html#IDX7">plain TeX</A>
-<LI><A HREF="texdraw_2.html#IDX21">position specification</A>
-<LI><A HREF="texdraw_3.html#IDX80">positions, saving</A>
-<LI><A HREF="texdraw_6.html#IDX137">PostScript commands</A>
-<LI><A HREF="texdraw_4.html#IDX102">PostScript printer drivers</A>, <A HREF="texdraw_5.html#IDX132">PostScript printer drivers</A>
-<LI><A HREF="texdraw_4.html#IDX101">printer drivers</A>, <A HREF="texdraw_5.html#IDX133">printer drivers</A>
-<LI><A HREF="texdraw_5.html#IDX119">problems while using TeXdraw</A>
-<LI><A HREF="texdraw_4.html#IDX113"><CODE>psprint</CODE> driver</A>
-</DIR>
-<H2><A NAME="cindex_r">r</A></H2>
-<DIR>
-<LI><A HREF="texdraw_2.html#IDX31">relative positioning</A>
-<LI><A HREF="texdraw_3.html#IDX86">relative scaling</A>
-<LI><A HREF="texdraw_5.html#IDX123">resolution</A>
-<LI><A HREF="texdraw_2.html#IDX48">rotated text</A>, <A HREF="texdraw_2.html#IDX51">rotated text</A>, <A HREF="texdraw_4.html#IDX117">rotated text</A>, <A HREF="texdraw_5.html#IDX124">rotated text</A>, <A HREF="texdraw_5.html#IDX135">rotated text</A>
-</DIR>
-<H2><A NAME="cindex_s">s</A></H2>
-<DIR>
-<LI><A HREF="texdraw_3.html#IDX79">saving positions</A>
-<LI><A HREF="texdraw_5.html#IDX122">scaling</A>
-<LI><A HREF="texdraw_3.html#IDX85">scaling coordinates</A>
-<LI><A HREF="texdraw_3.html#IDX87">segment scale</A>
-<LI><A HREF="texdraw_3.html#IDX72">segments</A>
-<LI><A HREF="texdraw_7.html#IDX173">sine of a vector direction</A>
-<LI><A HREF="texdraw_3.html#IDX93">size of the drawing</A>
-<LI><A HREF="texdraw_3.html#IDX78">stroking lines</A>, <A HREF="texdraw_6.html#IDX144">stroking lines</A>
-<LI><A HREF="texdraw_3.html#IDX82">symbolic coordinate</A>
-<LI><A HREF="texdraw_2.html#IDX18">syntax of commands</A>
-</DIR>
-<H2><A NAME="cindex_t">t</A></H2>
-<DIR>
-<LI><A HREF="texdraw_2.html#IDX9"><CODE>texdraw</CODE> package</A>, <A HREF="texdraw_4.html#IDX100"><CODE>texdraw</CODE> package</A>, <A HREF="texdraw_5.html#IDX130"><CODE>texdraw</CODE> package</A>
-<LI><A HREF="texdraw_2.html#IDX45">text commands</A>
-<LI><A HREF="texdraw_5.html#IDX128">text placement</A>
-<LI><A HREF="texdraw_2.html#IDX49">text rotation</A>, <A HREF="texdraw_2.html#IDX52">text rotation</A>, <A HREF="texdraw_4.html#IDX118">text rotation</A>, <A HREF="texdraw_5.html#IDX125">text rotation</A>, <A HREF="texdraw_5.html#IDX136">text rotation</A>
-<LI><A HREF="texdraw_4.html#IDX114"><CODE>textures</CODE> printer driver</A>
-</DIR>
-<H2><A NAME="cindex_u">u</A></H2>
-<DIR>
-<LI><A HREF="texdraw_3.html#IDX88">unit scale</A>
-</DIR>
-<H2><A NAME="cindex_v">v</A></H2>
-<DIR>
-<LI><A HREF="texdraw_2.html#IDX24">vectors</A>
-<LI><A HREF="texdraw_2.html#IDX47">vertical text</A>
-</DIR>
-<H2><A NAME="cindex_w">w</A></H2>
-<DIR>
-<LI><A HREF="texdraw_2.html#IDX36">width of lines</A>
-</DIR>
-<H2><A NAME="cindex_x">x</A></H2>
-<DIR>
-<LI><A HREF="texdraw_4.html#IDX105"><CODE>xdvi</CODE> driver</A>
-</DIR>
-
-
-<P><HR><P>
-Go to the <A HREF="texdraw_1.html">first</A>, <A HREF="texdraw_10.html">previous</A>, next, last section, <A HREF="texdraw_toc.html">table of contents</A>.
-</BODY>
-</HTML>
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@@ -1,882 +0,0 @@
-<HTML>
-<HEAD>
-<!-- Created by texi2html 1.56k from texdraw.texi on 10 March 2004 -->
-
-<TITLE>TeXdraw - 2. Using the TeXdraw Commands</TITLE>
-</HEAD>
-<BODY>
-Go to the <A HREF="texdraw_1.html">first</A>, <A HREF="texdraw_1.html">previous</A>, <A HREF="texdraw_3.html">next</A>, <A HREF="texdraw_11.html">last</A> section, <A HREF="texdraw_toc.html">table of contents</A>.
-<P><HR><P>
-
-
-<H1><A NAME="SEC3" HREF="texdraw_toc.html#TOC3">2. Using the TeXdraw Commands</A></H1>
-
-<P>
-The main TeXdraw macros (commands) are defined in the file
-<TT>`texdraw.tex'</TT>.  These macros may be used directly in TeX.  The
-file <TT>`texdraw.sty'</TT> provides an interface for use with LaTeX2e.
-The following sections describe the basic commands for TeXdraw.
-
-
-
-<UL>
-<LI><A HREF="texdraw_2.html#SEC4">Accessing TeXdraw</A>
-<LI><A HREF="texdraw_2.html#SEC5">Command syntax</A>
-<LI><A HREF="texdraw_2.html#SEC6">TeXdraw coordinates</A>
-<LI><A HREF="texdraw_2.html#SEC7">Coordinate specification</A>
-<LI><A HREF="texdraw_2.html#SEC8">Line vectors</A>
-<LI><A HREF="texdraw_2.html#SEC9">TeX text</A>
-<LI><A HREF="texdraw_2.html#SEC10">Circles and arcs</A>
-<LI><A HREF="texdraw_2.html#SEC11">Bezier curves</A>
-<LI><A HREF="texdraw_2.html#SEC12">Fill commands</A>
-</UL>
-
-
-
-<H2><A NAME="SEC4" HREF="texdraw_toc.html#TOC4">2.1 Accessing TeXdraw</A></H2>
-<P>
-<A NAME="IDX5"></A>
-<A NAME="IDX6"></A>
-
-
-<P>
-<A NAME="IDX7"></A>
-<A NAME="IDX8"></A>
-The form of the user command to run the TeX program depends on which
-version of TeX is being used, and which other macro packages are
-preloaded as format files.  Typically, installations have at least two
-versions of TeX -- plain TeX which includes basic typesetting
-macros (usually invoked as <TT>`tex'</TT>) and LaTeX2e which includes the
-LaTeX2e typesetting macros (usually invoked as <TT>`latex'</TT>).  An
-older version of LaTeX, version 2.09, may also be available.  The
-TeXdraw macros can be used with plain TeX and with either version
-of LaTeX.
-
-
-<P>
-For use with plain TeX, the user must read in the TeXdraw macros
-from the file <TT>`texdraw.tex'</TT>.
-
-<PRE>
-\input texdraw            % Read in the TeXdraw macros
- ...
-\btexdraw
-  ...                     % TeXdraw commands to generate a drawing
-\etexdraw
-</PRE>
-
-<P>
-For use with LaTeX version 2.09, the user reads in the TeXdraw
-macros from the file <TT>`texdraw.tex'</TT> and optionally defines the
-<CODE>\begin{texdraw}</CODE> / <CODE>\end{texdraw}</CODE> environment.
-
-<PRE>
-\documentstyle[11pt]{article}  % Article style with the 11pt size options
-...
-\input texdraw            % Read in the TeXdraw macros
-\newenvironment{texdraw}{\leavevmode\btexdraw}{\etexdraw}
- ...
-\begin{texdraw}
-  ...                     % TeXdraw commands to generate a drawing
-\end{texdraw}
-...
-\end{document}
-</PRE>
-
-<P>
-<A NAME="IDX9"></A>
-<A NAME="IDX10"></A>
-For use with LaTeX2e, the user must load the <CODE>texdraw</CODE> package
-(file <TT>`texdraw.sty'</TT>).  This package file defines the
-<CODE>\begin{texdraw}</CODE> / <CODE>\end{texdraw}</CODE> environment, brings in
-the standard <CODE>graphics</CODE> package and reads in the file
-<TT>`texdraw.tex'</TT> containing the definitions of the TeXdraw macros.
-
-<PRE>
-\documentclass[11pt]{article}  % Article class with the 11pt size option
-\usepackage{texdraw}           % TeXdraw commands
-
-\begin{document}
- ...
-\begin{texdraw}
-  ...                     % TeXdraw commands to generate a drawing
-\end{texdraw}
- ...
-\end{document}
-</PRE>
-
-<P>
-As the TeXdraw commands are processed by TeX, an intermediate
-PostScript file is generated.  The intermediate PostScript has a name of
-the form <TT>`<VAR>name</VAR>.ps1'</TT>.  The name part is derived from the name
-of the main TeX file being processed.  If more than one drawing is
-produced, the digit in the file name extension is
-incremented.<A NAME="DOCF1" HREF="texdraw_foot.html#FOOT1">(1)</A>
-
-
-<P>
-The TeXdraw commands to produce a drawing are inserted between
-<CODE>\btexdraw</CODE> and <CODE>\etexdraw</CODE> commands, or for LaTeX, between
-<CODE>\begin{texdraw}</CODE> and <CODE>\end{texdraw}</CODE> commands.  This
-results in a TeX box of appropriate size containing the drawing
-generated by the TeXdraw commands.  The TeXdraw box can be
-positioned in a document like any other TeX box.
-
-
-<P>
-The <CODE>\centertexdraw{...}</CODE> macro centers the box generated by
-TeXdraw.  The vertical space taken up is equal to the vertical size
-of the drawing.  The <CODE>\centertexdraw</CODE> macro is normally used in
-vertical mode (between paragraphs).  A <CODE>\par</CODE> command (a blank line
-will do also) before a <CODE>\centertexdraw</CODE> command will terminate
-horizontal mode and return to vertical mode.  For LaTeX, a structured
-equivalent to the <CODE>\centertexdraw{...}</CODE> command is shown below.
-
-<PRE>
-\begin{center}
-\begin{texdraw}
-  ...
-\end{texdraw}
-\end{center}
-</PRE>
-
-<P>
-The <CODE>\everytexdraw</CODE> command can be used to define a set of
-TeXdraw commands that will be executed at the beginning of every
-TeXdraw drawing.  It is invoked as <CODE>\everytexdraw{ ...}</CODE>,
-with the desired TeXdraw commands as arguments.
-
-
-<DL COMPACT>
-
-<DT><CODE>\btexdraw</CODE>
-<DD>
-<A NAME="IDX11"></A>
- 
-Start a TeXdraw drawing.  The drawing is terminated with an
-<CODE>\etexdraw</CODE> command.
-<A NAME="IDX12"></A>
-<DT><CODE>\etexdraw</CODE>
-<DD>
-End a TeXdraw drawing started with a <CODE>\btexdraw</CODE> command.  The
-resulting TeXdraw drawing is placed in a box with height equal to the
-height of the drawing and width equal to the width of the drawing.  The
-depth of the box is zero.
-<A NAME="IDX13"></A>
-<DT><CODE>\begin{texdraw}</CODE>
-<DD>
-Start a TeXdraw drawing.  The drawing is terminated with an
-<CODE>\end{texdraw}</CODE> command.  This command is for use with LaTeX.
-<A NAME="IDX14"></A>
-<DT><CODE>\end{texdraw}</CODE>
-<DD>
-End a TeXdraw drawing started with a <CODE>\begin{texdraw}</CODE>
-command.  The resulting TeXdraw drawing is placed in a box with
-height equal to the height of the drawing and width equal to the width
-of the drawing.  The depth of the box is zero.  This command is for use
-with LaTeX.
-<A NAME="IDX15"></A>
-<DT><CODE>\centertexdraw{ ... }</CODE>
-<DD>
-Center a TeXdraw box horizontally.  The argument contains TeXdraw
-commands.  The resulting box has the horizontal size <CODE>\hsize</CODE> and
-height equal to the height of the drawing.
-<A NAME="IDX16"></A>
-<DT><CODE>\everytexdraw{ ... }</CODE>
-<DD>
-Specify TeXdraw commands to be executed at the beginning of every
-TeXdraw drawing.
-</DL>
-
-
-
-<H2><A NAME="SEC5" HREF="texdraw_toc.html#TOC5">2.2 Command syntax</A></H2>
-<P>
-<A NAME="IDX17"></A>
-<A NAME="IDX18"></A>
-
-
-<P>
-Generally TeXdraw commands that take a single argument need a
-terminating blank or newline after the argument.  Arguments that are
-self-delimiting, such as coordinates within parentheses and text within
-braces, do not need the terminating blank.  However, even when not
-needed by the defining syntax of the command, blanks following command
-arguments are allowed and ignored within the TeXdraw environment.
-
-
-<P>
-On entering the TeXdraw environment, TeX is in internal vertical
-mode (vertical mode inside a <CODE>\vbox</CODE>).  In this mode, spaces can be
-placed freely between commands.  However, any other extraneous input
-that generates output that is not part of the TeXdraw environment is
-disallowed.
-
-
-<P>
-Blank lines are interpreted as paragraph breaks, equivalent to a
-<CODE>\par</CODE> command.  The TeXdraw macro <CODE>\centertexdraw</CODE> is
-defined with the <CODE>\long</CODE> attribute to allow <CODE>\par</CODE> commands
-and blank lines to be interspersed between TeXdraw commands.  The
-<CODE>\btexdraw</CODE> and <CODE>\etexdraw</CODE> commands also allow <CODE>\par</CODE>
-command and blank lines to be included.
-
-
-
-
-<H2><A NAME="SEC6" HREF="texdraw_toc.html#TOC6">2.3 TeXdraw coordinates</A></H2>
-<P>
-<A NAME="IDX19"></A>
-
-
-<P>
-The TeXdraw coordinate system has increasing <VAR>x</VAR> to the right and
-increasing <VAR>y</VAR> upward.  The coordinates (without the unit) are
-floating point numbers.  Integer values can be written without a decimal
-point.  The size of the drawing is determined by the maximum excursions
-of the coordinates specified in TeXdraw commands.
-
-
-<P>
-Consider the following example of TeXdraw commands to draw a simple
-figure.
-
-<PRE>
-\centertexdraw{
-  \drawdim cm  \linewd 0.02
-  \move(2 2) \lvec(3 3) \lvec(2 4) \lvec(1 3) \lvec(2 2)
-  \textref h:C v:C \htext(2 3){$\sum \rho_n$}
-}
-</PRE>
-
-<P>
-This drawing uses units of centimetres, with a line width of 0.02 cm.
-The <VAR>x</VAR> coordinate ranges between 1 and 3 while the <VAR>y</VAR>
-coordinate ranges between 2 and 4.  When included into a document, the
-size of the drawing is 2 cm by 2 cm.  The drawing is placed in a TeX
-box, with the lower lefthand corner of the box corresponding to
-TeXdraw coordinate <CODE>(1 2)</CODE> and the upper righthand corner at
-<CODE>(3 4)</CODE>.  The <CODE>\centertexdraw</CODE> command centers the drawing
-horizontally.  The <CODE>\textref</CODE> command controls the centering of the
-text.  The text in this drawing is centered (both horizontally and
-vertically) at the coordinate <CODE>(2 3)</CODE>.
-
-
-
-
-<H2><A NAME="SEC7" HREF="texdraw_toc.html#TOC7">2.4 Coordinate specification</A></H2>
-<P>
-<A NAME="IDX20"></A>
-<A NAME="IDX21"></A>
-
-
-<P>
-Coordinates are specified within parentheses, with blanks (but no comma)
-between the values.  Leading blanks and trailing blanks are permitted
-within the parentheses.  The coordinates refer to units, which are
-specified by the <CODE>\drawdim</CODE> command.  The default is inches, but
-any valid TeX dimension unit can be specified.  Symbolic
-specification of saved coordinate values will be discused later
-(see section <A HREF="texdraw_3.html#SEC16">3.3 Saving positions</A>).
-
-
-<DL COMPACT>
-
-<DT><CODE>\drawdim <VAR>dim</VAR></CODE>
-<DD>
-<A NAME="IDX22"></A>
- 
-Set the units to <VAR>dim</VAR>.  The argument <VAR>dim</VAR> can be any valid
-TeX dimension unit.  The units are used to interpret coordinate
-values.  Examples of valid units: <CODE>cm</CODE>, <CODE>mm</CODE>, <CODE>in</CODE>,
-<CODE>pt</CODE>, and <CODE>bp</CODE>.
-</DL>
-
-<P>
-Examples of coordinate and scaling specifications:
-<DL COMPACT>
-
-<DT><CODE>\drawdim {cm} \move(2 2)</CODE>
-<DD>
-Set the units to centimetres, move to a position 2 cm to the right and 2
-cm up from the origin of the drawing coordinate system.
-<DT><CODE>\drawdim bp</CODE>
-<DD>
-Set the units to big points.
-<DT><CODE>\lvec ( 2.2 +5.5) \lvec(2.3 -2) \lvec(2.2 5.4 )</CODE>
-<DD>
-Examples of acceptable coordinate specifications.
-</DL>
-
-
-
-<H2><A NAME="SEC8" HREF="texdraw_toc.html#TOC8">2.5 Line vectors</A></H2>
-<P>
-<A NAME="IDX23"></A>
-<A NAME="IDX24"></A>
-<A NAME="IDX25"></A>
-<A NAME="IDX26"></A>
-<A NAME="IDX27"></A>
-
-
-<P>
-TeXdraw implements moves, line vectors and arrow vectors.  There are
-both absolute and relative motion versions of these vector commands.
-TeXdraw maintains a current position.  Lines are drawn from the
-current position to a new coordinate, with the new coordinate becoming
-the new current position.  An explicit move can be used to establish a
-new current position.  The position <CODE>(0 0)</CODE> is used if there is no
-move to an initial current position.
-
-
-<P>
-The <CODE>\move</CODE> and <CODE>\rmove</CODE> commands establish a new current
-position without drawing a line.  The <CODE>\lvec</CODE> and <CODE>\rlvec</CODE>
-commands draw a line from the current position to a new position, which
-then becomes the new current position.  The <CODE>\avec</CODE> and
-<CODE>\ravec</CODE> commands draw a line with an arrowhead from the current
-position to a new coordinate, which then becomes the new current
-position.  The tip of the arrow is at the new current position.  The
-direction of the arrow follows the direction of the line.  Since this
-direction is undefined for zero length vectors, these are not allowed
-for <CODE>\avec</CODE> or <CODE>\ravec</CODE>.  Zero length arrow vectors will
-generate a PostScript print error: <CODE>undefinedresult</CODE>.  For any
-non-zero length vector, the full size arrowhead is drawn, even if that
-arrowhead is longer than the line length.
-
-
-<P>
-The absolute motion versions of these commands specify the coordinate of
-the final position.
-
-
-<DL COMPACT>
-
-<DT><CODE>\move (<VAR>x</VAR> <VAR>y</VAR>)</CODE>
-<DD>
-<A NAME="IDX28"></A>
- 
-Move to coordinate <CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>.  The new current position
-is <CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>.
-<A NAME="IDX29"></A>
-<DT><CODE>\lvec (<VAR>x</VAR> <VAR>y</VAR>)</CODE>
-<DD>
-Draw a line from the current position to coordinate <CODE>(<VAR>x</VAR>
-<VAR>y</VAR>)</CODE>.  The new current position is <CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>.
-<A NAME="IDX30"></A>
-<DT><CODE>\avec (<VAR>x</VAR> <VAR>y</VAR>)</CODE>
-<DD>
-Draw a line with an arrowhead from the current position to
-<CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>.  The new current position is <CODE>(<VAR>x</VAR>
-<VAR>y</VAR>)</CODE>.  The arrowhead is aligned with the line, with the tip at
-<CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>.
-</DL>
-
-<P>
-<A NAME="IDX31"></A>
-The relative motion versions of these commands interpret the coordinates
-as displacements relative to the current position.  Given the
-displacements <CODE>(<VAR>dx</VAR> <VAR>dy</VAR>)</CODE> as a parameter, each of the
-relative motion commands moves <VAR>dx</VAR> units in the <VAR>x</VAR> direction
-and <VAR>dy</VAR> units in the <VAR>y</VAR> direction.
-
-
-<DL COMPACT>
-
-<DT><CODE>\rmove (<VAR>dx</VAR> <VAR>dy</VAR>)</CODE>
-<DD>
-<A NAME="IDX32"></A>
- 
-Move from the current position, <VAR>dx</VAR> units in the <VAR>x</VAR> direction
-and <VAR>dy</VAR> units in the <VAR>y</VAR> direction.  The final position becomes
-the new current position.
-<A NAME="IDX33"></A>
-<DT><CODE>\rlvec (<VAR>dx</VAR> <VAR>dy</VAR>)</CODE>
-<DD>
-Draw a line from the current position, <VAR>dx</VAR> units in the <VAR>x</VAR>
-direction and <VAR>dy</VAR> units in the <VAR>y</VAR> direction.  The final
-position becomes the new current position.
-<A NAME="IDX34"></A>
-<DT><CODE>\ravec (<VAR>dx</VAR> <VAR>dy</VAR>)</CODE>
-<DD>
-Draw a line with an arrowhead from the current position, <VAR>dx</VAR> units
-in the <VAR>x</VAR> direction and <VAR>y</VAR> units in the <VAR>y</VAR> direction.
-The final position becomes the new current position.  The arrowhead is
-aligned with the line, with the tip at the new current position.
-</DL>
-
-<P>
-Lines can be customized with commands to change the line width, line
-pattern and line gray level rendition.  In addition, commands for
-changing the type and size of the arrowhead are available.
-
-
-<P>
-<A NAME="IDX35"></A>
-<A NAME="IDX36"></A>
-<A NAME="IDX37"></A>
-<A NAME="IDX38"></A>
-<A NAME="IDX39"></A>
-<A NAME="IDX40"></A>
-<DL COMPACT>
-
-<DT><CODE>\linewd <VAR>width</VAR></CODE>
-<DD>
-<A NAME="IDX41"></A>
- 
-Set the line width to <VAR>width</VAR> units.  Initially <VAR>width</VAR> is 0.01
-inches (corresponding to 3 pixels at 300 pixels to the inch).
-<DT><CODE>\lpatt (<VAR>pattern</VAR>)</CODE>
-<DD>
-Set lines to have the pattern <CODE>(<VAR>pattern</VAR>)</CODE>.  A pattern is a
-sequence of on/off lengths separated by blanks and enclosed in parentheses.
-The lengths alternately specify the length of a dash and the length of a
-gap between dashes.  Each length is interpreted using the current
-scaling and drawing units.  The pattern is used cyclically.  The empty
-pattern signifies a solid line.  The initial line pattern is a solid
-line, corresponding to the empty pattern <CODE>\lpatt ()</CODE>.
-<A NAME="IDX42"></A>
-<DT><CODE>\setgray <VAR>level</VAR></CODE>
-<DD>
-Set the gray level of lines.  Gray levels are real values from 0 (black)
-through intermediate values (gray) to 1 (white).  The initial gray level
-is 0 corresponding to black.
-<A NAME="IDX43"></A>
-<DT><CODE>\arrowheadtype t:<VAR>type</VAR></CODE>
-<DD>
-Set the arrowhead type to <VAR>type</VAR>, where <VAR>type</VAR> is one of
-<CODE>F</CODE>, <CODE>T</CODE>, <CODE>W</CODE>, <CODE>V</CODE>, or <CODE>H</CODE>.  There are two
-kinds of arrowheads.  The first kind is a triangle.  There are 3
-variants: type <CODE>T</CODE> is an empty triangle, type <CODE>F</CODE> is a filled
-triangle (using the current gray level for lines), type <CODE>W</CODE> is a
-triangle filled with white.  The second kind of arrowhead is an open
-ended Vee.  There are 2 variants: type <CODE>V</CODE> has the stem continue to
-the tip, type <CODE>H</CODE> has the stem stop at the base of the arrowhead.
-The initial arrowhead type is <CODE>T</CODE>.
-<A NAME="IDX44"></A>
-<DT><CODE>\arrowheadsize l:<VAR>length</VAR> w:<VAR>width</VAR></CODE>
-<DD>
-Set the arrowhead size to be <VAR>length</VAR> units long and <VAR>width</VAR>
-units wide.  The width is measured across the "base" of the arrowhead.
-The initial arrowhead size has a <VAR>length</VAR> of 0.16 inches and a
-<VAR>width</VAR> of 0.08 inches.
-</DL>
-
-<P>
-Note that the lines which outline the arrowhead will be drawn with the
-same line pattern used for the stem.  Normally, arrow vectors are drawn
-with the line pattern set for a solid line.  Note that the fill level
-used for the <CODE>F</CODE> variant of the arrowhead uses the same gray level
-as used for lines.  The difference between the <CODE>T</CODE> variant and the
-<CODE>W</CODE> variant only shows up if the arrowhead is placed over non-white
-areas of the drawing.  The <CODE>W</CODE> variant obliterates the area under
-the arrowhead.
-
-
-<P>
-Examples of line parameter and arrowhead settings are shown in the
-following code.
-
-<PRE>
-\centertexdraw{
-  \drawdim in
-  \linewd 0.03 \setgray 0.6 \arrowheadtype t:F \avec(0 0.5)
-  \linewd 0.01 \setgray 0   \arrowheadtype t:V \avec(0.5 0.5)
-  \linewd 0.015 \lpatt(0.067 0.1) \lvec (1 0)
-  \linewd 0.02 \lpatt() \arrowheadtype t:T \avec(1.5 0.5)
-  \arrowheadtype t:H \avec(2.0 0.5)
-  \setgray 0.4 \arrowheadtype t:W \avec(3.0 0)
-}
-</PRE>
-
-
-
-<H2><A NAME="SEC9" HREF="texdraw_toc.html#TOC9">2.6 TeX text</A></H2>
-<P>
-<A NAME="IDX45"></A>
-
-
-<P>
-Text may be superimposed on the drawing.  The text argument of the
-<CODE>\htext</CODE> command is in horizontal mode.  This text can be ordinary
-text, math mode expressions, or even more complicated boxes consisting
-of tables and the like.  The resulting TeX text is placed in a box.
-The reference point of the box can be chosen to be one of nine
-locations: horizontally left, center or right; vertically top, center or
-bottom.  The <CODE>\htext</CODE> command takes one of two forms.
-
-
-<DL COMPACT>
-
-<DT><CODE>\htext (<VAR>x</VAR> <VAR>y</VAR>){<VAR>text</VAR>}</CODE>
-<DD>
-<A NAME="IDX46"></A>
- 
-<DT><CODE>\htext {<VAR>text</VAR>}</CODE>
-<DD>
-The first form of this command places the TeX text <VAR>text</VAR>
-horizontally with the text reference point at the coordinate
-<CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>.  The new current position is <CODE>(<VAR>x</VAR>
-<VAR>y</VAR>)</CODE>.  The second form of this command places the TeX text
-<VAR>text</VAR> horizontally with the text reference point at the current
-position.  The text reference point is set with the <CODE>\textref</CODE>
-command.
-</DL>
-
-<P>
-<A NAME="IDX47"></A>
-<A NAME="IDX48"></A>
-<A NAME="IDX49"></A>
-Text can be placed vertically using the <CODE>\vtext</CODE> command.  The text
-argument is in horizontal mode.  The TeX text is placed in a box and
-then rotated counterclockwise.  The reference point is the point in the
-box, <EM>before</EM> rotation of the text.  Not all PostScript printer
-drivers support vertical text.
-
-
-<DL COMPACT>
-
-<DT><CODE>\vtext (x y){<VAR>text</VAR>}</CODE>
-<DD>
-<A NAME="IDX50"></A>
- 
-<DT><CODE>\vtext {<VAR>text</VAR>}</CODE>
-<DD>
-The first form of this command places the TeX text <VAR>text</VAR>
-vertically with the text reference point at the coordinate
-<CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>.  The new current position is <CODE>(<VAR>x</VAR>
-<VAR>y</VAR>)</CODE>.  The second form of this command places the TeX text
-<VAR>text</VAR> vertically with the text reference point at the current
-position.  In both cases, the TeX text is placed in a box and the box
-is rotated counterclockwise by 90 degrees about the text reference
-point.  The text reference point is set with the <CODE>\textref</CODE>
-command.
-</DL>
-
-<P>
-<A NAME="IDX51"></A>
-<A NAME="IDX52"></A>
-Text can be placed at an arbitrary angle using the <CODE>\rtext</CODE>
-command.  The text argument is in horizontal mode.  The TeX text is
-placed in a box and then rotated counterclockwise.  The reference point
-is the point in the box, <EM>before</EM> rotation of the text.  Not all
-PostScript printer drivers support rotated text.
-
-
-<DL COMPACT>
-
-<DT><CODE>\rtext td:<VAR>angle</VAR> (x y){<VAR>text</VAR>}</CODE>
-<DD>
-<A NAME="IDX53"></A>
- 
-<DT><CODE>\rtext td:<VAR>angle</VAR> {<VAR>text</VAR>}</CODE>
-<DD>
-The first form of this command places the TeX text <VAR>text</VAR> at an
-angle with the text reference point at the coordinate <CODE>(<VAR>x</VAR>
-<VAR>y</VAR>)</CODE>.  The new current position is <CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>.  The
-second form of this command places the TeX text <VAR>text</VAR> at an
-angle with the text reference point at the current position.  In both
-cases, the TeX text is placed in a box and the box is rotated
-counterclockwise by <VAR>angle</VAR> degrees about the text reference point.
-The text reference point is set with the <CODE>\textref</CODE> command.
-</DL>
-
-<P>
-The reference point for subsequent TeX text in a <CODE>\htext</CODE>,
-<CODE>\vtext</CODE> or <CODE>\rtext</CODE> command is set with the <CODE>\textref</CODE>
-command.
-
-
-<DL COMPACT>
-
-<DT><CODE>\textref h:<VAR>h-ref</VAR> v:<VAR>v-ref</VAR></CODE>
-<DD>
-<A NAME="IDX54"></A>
- 
-Set the text reference point for subsequent text commands.  The
-horizontal reference point <VAR>h-ref</VAR> is one of <CODE>L</CODE>, <CODE>C</CODE> or
-<CODE>R</CODE> (left, center or right).  The vertical reference point
-<VAR>v-ref</VAR> is one of <CODE>T</CODE>, <CODE>C</CODE> or <CODE>B</CODE> (top, center or
-bottom).  For rotated text, the reference point is determined before
-rotation.  The initial text reference point corresponds to
-<CODE>\textref h:L v:B</CODE>.
-</DL>
-<P>
-
-
-<P>
-The font used to render the text is determined as for any other TeX
-text.  Normally the font used outside of TeXdraw is in effect.  If
-desired, other fonts can be specified as part of the text.  Any font
-changes within a TeXdraw text command remain local to that command.
-
-
-<P>
-Only the coordinate of the text reference point in a <CODE>\htext</CODE>,
-<CODE>\vtext</CODE> or <CODE>\rtext</CODE> command is used in calculating the size
-of the drawing.  This means that text itself can spill outside of the
-drawing area determined by TeXdraw.  The area of the drawing can be
-increased to include the text by issuing additional <CODE>\move</CODE>
-commands.
-
-
-
-<PRE>
-\centertexdraw{
-             \avec(-0.75 -0.25) \textref h:R v:C \htext{H-text}
-  \move(0 0) \avec(-0.75 +0.25) \textref h:R v:B \htext{H-text}
-  \move(0 0) \avec(0 +0.5)      \textref h:L v:T \vtext{V-text}
-  \move(0 0) \avec(+0.75 +0.25) \textref h:L v:B \htext{H-text}
-  \move(0 0) \avec(+0.75 -0.25) \textref h:L v:C \htext{H-text}
-}
-</PRE>
-
-
-
-<H2><A NAME="SEC10" HREF="texdraw_toc.html#TOC10">2.7 Circles, ellipses and arcs</A></H2>
-<P>
-<A NAME="IDX55"></A>
-<A NAME="IDX56"></A>
-<A NAME="IDX57"></A>
-<A NAME="IDX58"></A>
-
-
-<P>
-TeXdraw supplies commands to generate circles, ellipses and arcs.
-There are two forms of the circle command.  The <CODE>\lcir</CODE> command
-draws a circle of given radius.  The <CODE>\fcir</CODE> command draws a filled
-circle.  In the latter case, the circle is filled by a specified gray
-level.  For the filled circle, the line defining the circumference of
-the circle is not drawn.  Note that the gray level area filled in by the
-<CODE>\fcir</CODE> command is opaque, even if the fill is chosen to be white.
-For either form of the circle command, the drawing size is increased if
-necessary to contain the circle.
-
-
-<P>
-The <CODE>\lellip</CODE> command generates an ellipse specified by the radius
-of the ellipse in the <VAR>x</VAR> direction and the radius of the ellipse in
-the <VAR>y</VAR> direction.  The ellipse is symmetrical about horizontal and
-vertical lines drawn through the current point.  The <CODE>\fellip</CODE>
-command draws a filled ellipse.  In the latter case, the ellipse is
-filled by a specified gray level.  For the filled ellipse, the line
-defining the boundary of the ellipse is not drawn.  For either form of
-the ellipse command, the drawing size is increased if necessary to
-contain the ellipse.
-
-
-<P>
-The <CODE>\larc</CODE> command generates a counterclockwise arc specified by a
-start angle in degrees and an end angle in degrees.  The center of the
-arc is the current position.  Only the arc is drawn, not the line
-joining the center to the beginning of the arc.  Note that the
-<CODE>\larc</CODE> command does not affect the size of the drawing.
-
-
-<DL COMPACT>
-
-<DT><CODE>\lcir r:<VAR>radius</VAR></CODE>
-<DD>
-<A NAME="IDX59"></A>
- 
-Draw a circle with center at the current position.  The radius is
-specified by <VAR>radius</VAR>.  This command draws a line along the
-circumference of the circle.  The drawing size is increased if necessary
-to contain the circle.
-<A NAME="IDX60"></A>
-<DT><CODE>\fcir f:<VAR>level</VAR> r:<VAR>radius</VAR></CODE>
-<DD>
-Draw a filled circle with center at the current position.  The radius is
-specified by <VAR>radius</VAR>.  The circle is painted with the gray level
-specified by <VAR>level</VAR>.  A gray level of 1 corresponds to white, with
-decreasing values getting darker.  The level 0 is full black.  This
-command does not draw a line along the circumference.  The drawing size
-is increased if necessary to contain the circle.
-<A NAME="IDX61"></A>
-<DT><CODE>\lellip rx:<VAR>x-radius</VAR> ry:<VAR>y-radius</VAR></CODE>
-<DD>
-Draw an ellipse with center at the current position.  The radius in the
-<VAR>x</VAR> direction is specified by <VAR>x-radius</VAR>.  The radius in the
-<VAR>y</VAR> direction is specified by <VAR>y-radius</VAR>.  The drawing size is
-increased if necessary to contain the ellipse.
-<A NAME="IDX62"></A>
-<DT><CODE>\fellip f:<VAR>level</VAR> rx:<VAR>x-radius</VAR> ry:<VAR>y-radius</VAR></CODE>
-<DD>
-Draw a filled ellipse with center at the current position.  The radius
-in the <VAR>x</VAR> direction is specified by <VAR>x-radius</VAR>.  The radius in
-the <VAR>y</VAR> direction is specified by <VAR>y-radius</VAR>.  The ellipse is
-painted with the gray level specified by <VAR>level</VAR>.  A gray level of 1
-corresponds to white, with decreasing values getting darker.  The level
-0 is full black.  This command does not draw a line along the boundary
-of the ellipse.  The drawing size is increased if necessary to contain
-the ellipse.
-<A NAME="IDX63"></A>
-<DT><CODE>\larc r:<VAR>radius</VAR> sd:<VAR>start-angle</VAR> ed:<VAR>end-angle</VAR></CODE>
-<DD>
-Draw a counterclockwise arc.  The center of the arc is at the current
-position.  The radius is specified by <VAR>radius</VAR>.  The start and end
-angles (in degrees) are specified by <VAR>start-angle</VAR> and
-<VAR>end-angle</VAR>.  This command does not affect the limits (size) of the
-drawing.
-</DL>
-
-<P>
-As an example, the following commands draw a filled circle, and
-superimpose an arc.
-
-<PRE>
-\centertexdraw{
-  \linewd 0.02
-  \fcir f:0.7 r:1
-  \larc r:1 sd:45 ed:135
-  \lvec (+0.707 +0.707) \move (0 0) \lvec (-0.707 +0.707)
-}
-</PRE>
-
-<P>
-Note that for the arc command, the resulting figure can spill outside of
-the TeXdraw box as determined by the maximum excursions of the
-coordinates.  Extra moves can be used to compensate for the size of the
-arc.
-
-
-
-
-<H2><A NAME="SEC11" HREF="texdraw_toc.html#TOC11">2.8 Bezier curves</A></H2>
-<P>
-<A NAME="IDX64"></A>
-<A NAME="IDX65"></A>
-
-
-<P>
-Bezier curves in TeXdraw use 4 reference coordinates, two as the end
-points and two others to control the shape of the curve.  Let the 4
-points be <CODE>(<VAR>x0</VAR> <VAR>y0</VAR>)</CODE>, <CODE>(<VAR>x1</VAR> <VAR>y1</VAR>)</CODE>,
-<CODE>(<VAR>x2</VAR> <VAR>y2</VAR>)</CODE> and <CODE>(<VAR>x3</VAR> <VAR>y3</VAR>)</CODE>.  The curve
-starts out tangent to the line joining the first two points and ends up
-tangent to the line joining the second two points.  The control points
-"pull" at the curve to control the curvature.  The amount of pull
-increases with the distance of the control point from the endpoint.
-
-
-<P>
-As the parameter u varies from 0 to 1, the coordinates of the Bezier
-curve are given by a pair of parametric cubic equations,
-
-
-<P>
-x(u) = (1-u)^3 x0  + 3u (1-u)^2 x1  + 3u^2 (1-u) x2  + u^3 x3
-y(u) = (1-u)^3 y0  + 3u (1-u)^2 y1  + 3u^2 (1-u) y2  + u^3 y3 .
-
-
-<DL COMPACT>
-
-<DT><CODE>\clvec (<VAR>x1</VAR> <VAR>y1</VAR>)(<VAR>x2</VAR> <VAR>y2</VAR>)(<VAR>x3</VAR> <VAR>y3</VAR>)</CODE>
-<DD>
-<A NAME="IDX66"></A>
- 
-Draw a Bezier curve from the current position to the coordinate
-<CODE>(<VAR>x3</VAR> <VAR>y3</VAR>)</CODE> which becomes the new current position.  The
-coordinates <CODE>(<VAR>x1</VAR> <VAR>y1</VAR>)</CODE> and <CODE>(<VAR>x2</VAR> <VAR>y2</VAR>)</CODE>
-serve as control points for the curve.  Only the last coordinate given
-is used to update the size of the drawing.
-</DL>
-<P>
-Note that only 3 coordinate pairs are specified.  The other point is the
-current position before the <CODE>\clvec</CODE> command is executed.  Only the
-last coordinate specified in the <CODE>\clvec</CODE> command is used to
-determine the extent of the drawing.  While the Bezier curve passes
-through the old current position and the new current position, in
-general the curve will not reach the intermediate control points.  The
-curve is always entirely enclosed by the convex quadrilateral defined by
-the two end points and the two control points.  Note that the curve may
-pass outside the limits of the drawing as determined by the end point of
-the curve.
-
-
-<P>
-A simple Bezier curve is produced by the following example.
-
-<PRE>
-\btexdraw
-  \move (0 0)
-  \clvec (0 1)(1 0)(1 1)
-\etexdraw
-</PRE>
-
-
-
-<H2><A NAME="SEC12" HREF="texdraw_toc.html#TOC12">2.9 Fill commands</A></H2>
-<P>
-<A NAME="IDX67"></A>
-<A NAME="IDX68"></A>
-<A NAME="IDX69"></A>
-
-
-<P>
-PostScript deals with paths consisting of line segments.  The paths can
-be closed and the interior of the closed region filled.  From
-TeXdraw, paths start with a <CODE>\move</CODE> or <CODE>\rmove</CODE> command and
-continue with <CODE>\lvec</CODE>, <CODE>\rlvec</CODE> or <CODE>\clvec</CODE> commands.
-The TeXdraw fill commands close the path and fill the interior of the
-closed region.  Closing the path means that effectively another
-<CODE>\lvec</CODE> line is drawn from the last point specified to the initial
-point.  TeXdraw provides two forms of the fill command.  The
-<CODE>\ifill</CODE> fills the interior of the region with the given gray
-level.  The lines defining the path are not drawn.  The <CODE>\lfill</CODE>
-command fills the region defined by the closed path and draws a line
-along the enclosing path.  Note for both forms of the fill command, the
-gray level used for filling is opaque, even if the gray level is chosen
-to be white.
-
-
-<DL COMPACT>
-
-<DT><CODE>\lfill f:<VAR>level</VAR></CODE>
-<DD>
-<A NAME="IDX70"></A>
- 
-Close the current path, draw the line around the path using the current
-grey level for lines and paint the interior of the region with specified
-gray level <VAR>level</VAR>.  Gray levels are real values from 0 (black)
-through intermediate values (grays) to 1 (white).
-<A NAME="IDX71"></A>
-<DT><CODE>\ifill f:<VAR>level</VAR></CODE>
-<DD>
-Close the current path and paint the interior of the region with gray
-level <VAR>level</VAR>.  The line around the path is not drawn.  Gray levels
-are real values from 0 (black) through intermediate values (grays) to 1
-(white).
-</DL>
-
-<P>
-The following example draws a "flag" with the interior filled in.  The
-path around the boundary is given in a clockwise order to define a
-closed path.  We could take advantage of the fact that the fill command
-will close an open path to eliminate one of the <CODE>\lvec</CODE> commands.
-
-<PRE>
-\centertexdraw{
-\move (0.5 0)
-\lvec (0 0.5) \clvec (0.5 0.85)(1 0.65)(1.5 1)
-\lvec (2 0.5) \clvec (1.5 0.15)(1 0.35)(0.5 0)
-\lfill f:0.8
-}
-</PRE>
-
-<P>
-In TeXdraw, the <CODE>\move</CODE> command always terminates any previous
-paths and starts a new path.  Commands that change line parameters
-(e.g.  <CODE>\setgray</CODE> or <CODE>\lpatt</CODE>) also terminate paths and start
-new paths.  The circle, ellipse and arc commands do not affect the
-definition of the current path.  The <CODE>\avec</CODE> command is not
-appropriate for defining a path to be filled.  It ends a subpath at its
-tail and begins a new subpath at its tip.  Filling a region defined by a
-path with subpaths is more complicated in that each subpath is closed
-before filling.
-
-
-<P><HR><P>
-Go to the <A HREF="texdraw_1.html">first</A>, <A HREF="texdraw_1.html">previous</A>, <A HREF="texdraw_3.html">next</A>, <A HREF="texdraw_11.html">last</A> section, <A HREF="texdraw_toc.html">table of contents</A>.
-</BODY>
-</HTML>
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-<HTML>
-<HEAD>
-<!-- Created by texi2html 1.56k from texdraw.texi on 10 March 2004 -->
-
-<TITLE>TeXdraw - 3. Drawing Segments and Scaling</TITLE>
-</HEAD>
-<BODY>
-Go to the <A HREF="texdraw_1.html">first</A>, <A HREF="texdraw_2.html">previous</A>, <A HREF="texdraw_4.html">next</A>, <A HREF="texdraw_11.html">last</A> section, <A HREF="texdraw_toc.html">table of contents</A>.
-<P><HR><P>
-
-
-<H1><A NAME="SEC13" HREF="texdraw_toc.html#TOC13">3. Drawing Segments and Scaling</A></H1>
-
-<P>
-TeXdraw provides individually scaled segments which can be used to
-create relocatable drawing modules.
-
-
-
-<UL>
-<LI><A HREF="texdraw_3.html#SEC14">Drawing segments</A>
-<LI><A HREF="texdraw_3.html#SEC15">Drawing paths</A>
-<LI><A HREF="texdraw_3.html#SEC16">Saving positions</A>
-<LI><A HREF="texdraw_3.html#SEC17">Scaling coordinates</A>
-<LI><A HREF="texdraw_3.html#SEC18">Drawing size</A>
-<LI><A HREF="texdraw_3.html#SEC19">Initial current position</A>
-</UL>
-
-
-
-<H2><A NAME="SEC14" HREF="texdraw_toc.html#TOC14">3.1 Drawing segments</A></H2>
-<P>
-<A NAME="IDX72"></A>
-<A NAME="IDX73"></A>
-
-
-<P>
-A TeXdraw drawing segment allows for local modifications of
-parameters and relative positioning.  A TeXdraw segment is delimited
-by a <CODE>\bsegment</CODE> command and an <CODE>\esegment</CODE> command.  Inside
-the segment, the initial current position is <CODE>(0 0)</CODE>.  Any changes
-to parameters such as the gray level and the line width, remain local to
-the segment.  Segments are implemented in TeX using a
-<CODE>\begingroup</CODE> and <CODE>\endgroup</CODE>.  Segments can be nested.
-
-
-<DL COMPACT>
-
-<DT><CODE>\bsegment</CODE>
-<DD>
-<A NAME="IDX74"></A>
- 
-Start a drawing segment.  The coordinate system is shifted such that the
-current position corresponds to the coordinate <CODE>(0 0)</CODE>.  Changes to
-scaling, position and line parameters stay local to the drawing segment.
-<A NAME="IDX75"></A>
-<DT><CODE>\esegment</CODE>
-<DD>
-End a drawing segment.  The current position in effect before the
-corresponding <CODE>\bsegment</CODE> command is restored.  The scaling and
-line parameter values revert to those in effect before the corresponding
-<CODE>\bsegment</CODE> command was invoked.
-</DL>
-
-
-
-<H2><A NAME="SEC15" HREF="texdraw_toc.html#TOC15">3.2 Drawing paths</A></H2>
-<P>
-<A NAME="IDX76"></A>
-<A NAME="IDX77"></A>
-<A NAME="IDX78"></A>
-Certain subtle interactions occur between drawing segments and fill
-operations.  In PostScript, lines are drawn by first defining a path,
-then later stroking the path to draw the line.  In TeXdraw, this
-stroking occurs when the line is terminated, say by a <CODE>\move</CODE>
-command.  PostScript paths are interrupted by, but continue after a
-drawing segment.  This means that a path started before a segment may
-not be stroked (drawn) until after the segment ends.  Consider the
-following example.
-
-<PRE>
-\move (0 0)
-\lvec (1 1)
-\bsegment
-  \move (-0.25 -0.25)
-  \fcir f:0.8 r:0.5
-\esegment
-\move (0 0)
-</PRE>
-
-<P>
-A PostScript path is started at <CODE>(0 0)</CODE> and continues with a line
-to <CODE>(1 1)</CODE>.  This path is interrupted by the segment.  The filled
-circle is drawn next.  After the segment, the path continues and is not
-stroked until the <CODE>\move (0 0)</CODE> command after the end of the
-segment.  This means that the line appears on top of the filled region.
-
-
-<P>
-If the fill operation is to cover the line, the path must be stroked
-before the fill operation.  From TeXdraw, the move commands
-<CODE>\move</CODE> and <CODE>\rmove</CODE>, and the end TeXdraw command
-<CODE>\etexdraw</CODE> terminate a path and cause it to be stroked.  Within a
-segment, the end segment command <CODE>\esegment</CODE> also terminates and
-strokes a path.  In the example above, the line can be stroked by
-inserting a move command (such as a <CODE>\rmove (0 0)</CODE> which does not
-affect the position), before the start of the segment.
-
-
-
-
-<H2><A NAME="SEC16" HREF="texdraw_toc.html#TOC16">3.3 Saving positions</A></H2>
-<P>
-<A NAME="IDX79"></A>
-<A NAME="IDX80"></A>
-<A NAME="IDX81"></A>
-<A NAME="IDX82"></A>
-
-
-<P>
-The <CODE>\savecurrpos</CODE> command saves the current position.  The saved
-position is an absolute position, not one relative to a segment.  The
-position saving mechanism is global; the position can be saved within a
-nested segment and then used outside of the segment.  The <VAR>x</VAR> and
-<VAR>y</VAR> coordinates of the position are saved separately as named
-coordinates.  The names are of the form <CODE>*<VAR>name</VAR></CODE>, with the
-leading <CODE>*</CODE> being obligatory.  A companion command,
-<CODE>\savepos</CODE>, saves a given coordinate (relative to the current
-segment) as an absolute symbolic position.
-
-
-<DL COMPACT>
-
-<DT><CODE>\savecurrpos (*<VAR>px</VAR> *<VAR>py</VAR>)</CODE>
-<DD>
-<A NAME="IDX83"></A>
- 
-Save the current position as the absolute position referenced by
-<CODE>(*<VAR>px</VAR> *<VAR>py</VAR>)</CODE>.
-<A NAME="IDX84"></A>
-<DT><CODE>\savepos (<VAR>x</VAR> <VAR>y</VAR>)(*<VAR>px</VAR> *<VAR>py</VAR>)</CODE>
-<DD>
-Save the coordinate position <CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE> as the absolute
-position referenced by <CODE>(*<VAR>px</VAR> *<VAR>py</VAR>)</CODE>.  The coordinate
-<CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE> is interpreted in the normal fashion as a
-coordinate relative to the current segment, using the current scaling
-factors and drawing unit.
-</DL>
-
-<P>
-The symbolic names used to specify a saved position can consist of any
-characters that are not special to TeX, but must start with a
-<CODE>*</CODE> character.  The symbolic names can be used as the <VAR>x</VAR>
-and/or <VAR>y</VAR> coordinate in any command that needs a coordinate.
-Symbolic coordinates are not normally used with relative motion commands
-such as <CODE>\rlvec</CODE> or <CODE>\rmove</CODE>.  If used with relative motion,
-the corresponding displacement is equal to the symbolic coordinate
-value.
-
-
-<P>
-On exit from a segment, the position and graphics state on entry is
-restored.  Any changes to line types, scaling and position are
-discarded.  However, it is sometimes useful alter the position on exit
-from a segment.  The <CODE>\savepos</CODE> command allows for the saving of a
-position within the segment.  This position can be restored after the
-<CODE>\esegment</CODE> with a <CODE>\move</CODE> command using the saved symbolic
-position.  This approach can be used to build modules which operate in a
-manner analogous to the basic relative motion line vector commands.
-
-
-<P>
-The following example defines a macro which draws a box 0.75 inches wide
-by 0.5 inches high containing centered text.  On leaving the macro the
-position will be set at a point on the righthand side of the box.
-
-<PRE>
-\def\tbox #1{\bsegment
-               \lvec (0 +0.25)    \lvec (0.75 +0.25)
-               \lvec (0.75 -0.25) \lvec (0 -0.25) \lvec (0 0)
-               \textref h:C v:C \htext (0.375 0){#1}
-               \savepos (0.75 0)(*ex *ey)
-             \esegment
-             \move (*ex *ey)}
-</PRE>
-
-<P>
-With this definition, we can treat <CODE>\tbox</CODE> in the same way as the
-basic vector commands, stringing them together to form a block diagram
-as in this example.
-
-<PRE>
-\centertexdraw{
-  \ravec (1 0) \tbox{$H(z)$} \ravec (1 0)
-}
-</PRE>
-
-
-
-<H2><A NAME="SEC17" HREF="texdraw_toc.html#TOC17">3.4 Scaling coordinates</A></H2>
-<P>
-<A NAME="IDX85"></A>
-<A NAME="IDX86"></A>
-<A NAME="IDX87"></A>
-<A NAME="IDX88"></A>
-
-
-<P>
-There are two scale factors available, the unit scale factor and the
-segment scale factor.  The overall scale factor is the product of these
-two.  There are absolute and relative versions of commands to change
-these scale factors.
-
-
-<P>
-The unit scale factor is normally used to affect global scale changes.
-Changes to the unit scale factor remains local to a segment, but
-propagate to inferior segments.  The default value is unity.
-
-
-<P>
-The segment scale factor is used for local scale changes.  It remains
-local to a segment.  The segment scale factor is reset to unity on entry
-into each segment.  This means that changes to the segment scale factor
-do not propagate to inferior segments.
-
-
-<DL COMPACT>
-
-<DT><CODE>\setunitscale <VAR>scale</VAR></CODE>
-<DD>
-<A NAME="IDX89"></A>
- 
-Set the unit scaling to <VAR>scale</VAR>.  The argument <VAR>scale</VAR> is a real
-number which is used to scale coordinate values.  The overall scaling
-factor is the product of the unit scale factor and the segment scale
-factor.
-<A NAME="IDX90"></A>
-<DT><CODE>\relunitscale <VAR>value</VAR></CODE>
-<DD>
-Adjust the unit scale factor by multiplying by <VAR>value</VAR>.  This has
-the effect of multiplying the overall scale factor by the same factor.
-The overall scaling factor is the product of the unit scale factor and
-the segment scale factor.
-<A NAME="IDX91"></A>
-<DT><CODE>\setsegscale <VAR>scale</VAR></CODE>
-<DD>
-Set the segment scale factor.  The argument <VAR>scale</VAR> is a real number
-which is used to scale coordinate values.  The overall scale factor is
-the product of the unit scale factor and the segment scale factor.
-<A NAME="IDX92"></A>
-<DT><CODE>\relsegscale <VAR>value</VAR></CODE>
-<DD>
-Adjust the segment scale factor by multiplying by <VAR>value</VAR>.  This has
-the effect of multiplying the current overall scale factor by the same
-factor.  The overall scaling factor is the product of the unit scale
-factor and the segment scale factor.
-</DL>
-
-<P>
-In addition to the unit scale factor and the segment scale factor, the
-scaling can be controlled by the choice of drawing units with the
-command <CODE>\drawdim</CODE> (see section <A HREF="texdraw_2.html#SEC7">2.4 Coordinate specification</A>).
-
-
-<DL COMPACT>
-
-<DT><CODE>\drawdim cm \setunitscale 2.54</CODE>
-<DD>
-Set the units to centimetres scaled by 2.54.  Together these commands
-are effectively the same as <CODE>\drawdim in</CODE>.
-</DL>
-
-<P>
-The segment scale can be used to allow scale changes in segments so that
-values are in more convenient units.  For example suppose dimensions in
-a segment are multiples of one third of an inch.  The segment scale can
-be set once to make 1 drawing unit equal 0.3333 inches.  From that point
-on, coordinates can be specified with integer values.
-
-
-<P>
-The following example defines a macro to draw a rectangular box which is
-twice as wide as it is high.  The width is specified as an argument.
-
-<PRE>
-\def\mybox #1{\bsegment
-                \setsegscale #1
-                \lvec (0 +0.25) \lvec (1 +0.25) \lvec (1 -0.25)
-                \lvec (0 -0.25) \lvec (0 0)
-              \esegment}
-</PRE>
-
-
-
-<H2><A NAME="SEC18" HREF="texdraw_toc.html#TOC18">3.5 Drawing size</A></H2>
-<P>
-<A NAME="IDX93"></A>
-
-
-<P>
-The effective size of the drawing is determined by the maximum
-excursions of the coordinates supplied to TeXdraw commands.  The
-minimum and maximum scaled <VAR>x</VAR> and <VAR>y</VAR> coordinates are tallied.
-Note that <CODE>\move</CODE> commands contribute to the determination of the
-calculated size of the drawing, even though they do not generate visible
-lines.  The circle and ellipse commands add a compensation for the radii
-of circles and ellipses.  The final TeXdraw drawing is placed in a
-TeX box with lower lefthand corner corresponding to
-<CODE>(</CODE><VAR>x</VAR>-min <VAR>y</VAR>-min<CODE>)</CODE> and upper righthand corner at
-<CODE>(</CODE><VAR>x</VAR>-max <VAR>y</VAR>-max<CODE>)</CODE>.
-
-
-<P>
-Text generated by <CODE>\htext</CODE>, <CODE>\vtext</CODE> or <CODE>\rtext</CODE> can
-spill outside the box as determined above.  Only the text reference
-point is guaranteed to be in the drawing box.  Arcs can also spill
-outside the drawing box.  Note also that the widths of lines, and the
-sizes of arrowheads do not affect the size of the drawing.  The
-calculated size of the drawing will never be larger than the actual size
-of the drawing.  In extreme cases in which text or lines extend far
-outside the drawing, extra <CODE>\move</CODE> commands should be used to
-establish the size of the drawing so that the TeXdraw box includes
-all of the drawing.
-
-
-<P>
-TeXdraw provides the <CODE>\drawbb</CODE> command to draw a box which
-indicates the effective size of the drawing.  Whenever <CODE>\drawbb</CODE> is
-invoked, a ruled box is drawn around the drawing as it has been sized up
-to that point.  Normally <CODE>\drawbb</CODE> is invoked just before the end
-of a drawing to indicate the effective size of the final drawing.
-
-
-<DL COMPACT>
-
-<DT><CODE>\drawbb</CODE>
-<DD>
-<A NAME="IDX94"></A>
- 
-Draw a ruled box around the effective size of a drawing produced by
-TeXdraw commands.
-</DL>
-
-
-
-<H2><A NAME="SEC19" HREF="texdraw_toc.html#TOC19">3.6 Initial current position</A></H2>
-<P>
-<A NAME="IDX95"></A>
-<A NAME="IDX96"></A>
-
-
-<P>
-The first operation in a drawing should be a move to establish the
-current position.  The current position can be established explicitly
-through a <CODE>\move</CODE> command or a text positioning command such as
-<CODE>\htext</CODE> with a coordinate.  However, if an attempt is made to use
-a drawing command which needs a current position and none has been
-established, TeXdraw implicitly sets the initial current position to
-<CODE>(0 0)</CODE>.  The size of the TeXdraw figure is normally determined
-from the sequence of coordinates specified, but will include the
-implicit initial position in case another initial position has not been
-explicitly specified.
-
-
-<P><HR><P>
-Go to the <A HREF="texdraw_1.html">first</A>, <A HREF="texdraw_2.html">previous</A>, <A HREF="texdraw_4.html">next</A>, <A HREF="texdraw_11.html">last</A> section, <A HREF="texdraw_toc.html">table of contents</A>.
-</BODY>
-</HTML>
diff --git a/Master/texmf-dist/doc/support/texdraw/texdraw_4.html b/Master/texmf-dist/doc/support/texdraw/texdraw_4.html
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@@ -1,119 +0,0 @@
-<HTML>
-<HEAD>
-<!-- Created by texi2html 1.56k from texdraw.texi on 10 March 2004 -->
-
-<TITLE>TeXdraw - 4. Using TeXdraw with LaTeX</TITLE>
-</HEAD>
-<BODY>
-Go to the <A HREF="texdraw_1.html">first</A>, <A HREF="texdraw_3.html">previous</A>, <A HREF="texdraw_5.html">next</A>, <A HREF="texdraw_11.html">last</A> section, <A HREF="texdraw_toc.html">table of contents</A>.
-<P><HR><P>
-
-
-<H1><A NAME="SEC20" HREF="texdraw_toc.html#TOC20">4. Using TeXdraw with LaTeX</A></H1>
-<P>
-<A NAME="IDX97"></A>
-<A NAME="IDX98"></A>
-<A NAME="IDX99"></A>
-<A NAME="IDX100"></A>
-
-
-<P>
-The LaTeX typesetting system uses a structured approach to declaring
-typesetting environments.  For LaTeX2e, the <CODE>texdraw</CODE> package
-defines the <CODE>texdraw</CODE> environment.  The TeXdraw environment is
-started with a <CODE>\begin{texdraw}</CODE> command and terminated with an
-<CODE>\end{texdraw}</CODE> command.  All of the basic TeXdraw commands
-can be used within the <CODE>texdraw</CODE> environment.
-
-
-<P>
-As an example, a LaTeX2e variant of an earlier example can be
-constructed as follows.
-
-<PRE>
-\documentclass{article}
-\usepackage{texdraw}
- ...
-\begin{document}
- ...
-\newcommand{\tbox}[1]{%
-   \bsegment
-     \lvec (0 +0.25)    \lvec (0.75 +0.25)
-     \lvec (0.75 -0.25) \lvec (0 -0.25) \lvec (0 0)
-     \textref h:C v:C \htext (0.375 0){#1}
-     \savepos (0.75 0)(*ex *ey)
-   \esegment
-   \move (*ex *ey)}
-\begin{center}
-\begin{texdraw}
-  \ravec (1 0) \tbox{$H(z)$} \ravec (1 0)
-\end{texdraw}
-\end{center}
- ...
-\end{document}
-</PRE>
-
-<P>
-This example illustrates the use of the LaTeX command
-<CODE>\newcommand</CODE> as an alternative to the plain TeX command
-<CODE>\def</CODE>.  Instead of the basic TeXdraw command
-<CODE>\centertexdraw</CODE>, a nested combination of the LaTeX centering
-environment and the TeXdraw environment is used.
-
-
-
-<UL>
-<LI><A HREF="texdraw_4.html#SEC21">PostScript printer drivers</A>
-</UL>
-
-
-
-<H2><A NAME="SEC21" HREF="texdraw_toc.html#TOC21">4.1 PostScript printer drivers</A></H2>
-<P>
-<A NAME="IDX101"></A>
-<A NAME="IDX102"></A>
-
-
-<P>
-<A NAME="IDX103"></A>
-The <CODE>texdraw</CODE> package uses the printer driver interface provided by
-the standard LaTeX2e <CODE>graphics</CODE> package.  Any options to the
-<CODE>texdraw</CODE> package are passed to the <CODE>graphics</CODE> package.
-Specifically, the name of the PostScript driver to be used can be
-specified as an option to the <CODE>texdraw</CODE> package.  With no explicit
-printer driver option, the default printer driver associated with the
-<CODE>graphics</CODE> package is used.
-
-
-<P>
-<A NAME="IDX104"></A>
-<A NAME="IDX105"></A>
-<A NAME="IDX106"></A>
-<A NAME="IDX107"></A>
-<A NAME="IDX108"></A>
-<A NAME="IDX109"></A>
-<A NAME="IDX110"></A>
-<A NAME="IDX111"></A>
-<A NAME="IDX112"></A>
-<A NAME="IDX113"></A>
-<A NAME="IDX114"></A>
-<A NAME="IDX115"></A>
-<A NAME="IDX116"></A>
-<A NAME="IDX117"></A>
-<A NAME="IDX118"></A>
-The <CODE>texdraw</CODE> package can be used with any of the printer drivers
-supported by the <CODE>graphics</CODE> package that allow for the importation
-of PostScript graphics files, viz., <CODE>dvips</CODE>, <CODE>xdvi</CODE>,
-<CODE>dvi2ps</CODE>, <CODE>dvialw</CODE>, <CODE>dvilaser</CODE>, <CODE>dvipsone</CODE>,
-<CODE>dviwindo</CODE>, <CODE>dvitops</CODE>, <CODE>oztex</CODE>, <CODE>psprint</CODE>,
-<CODE>textures</CODE>, <CODE>pctexps</CODE>, and <CODE>pctexwin</CODE>.  Not all of these
-drivers support the text rotation needed for the TeXdraw commands
-<CODE>\vtext</CODE> and <CODE>\rtext</CODE>.  Of the drivers listed above, only the
-following support support text rotation: <CODE>dvips</CODE>, <CODE>xdvi</CODE>,
-<CODE>dvi2ps</CODE>, <CODE>dvitops</CODE>, <CODE>textures</CODE>, and <CODE>pctexps</CODE>.
-
-
-<P><HR><P>
-Go to the <A HREF="texdraw_1.html">first</A>, <A HREF="texdraw_3.html">previous</A>, <A HREF="texdraw_5.html">next</A>, <A HREF="texdraw_11.html">last</A> section, <A HREF="texdraw_toc.html">table of contents</A>.
-</BODY>
-</HTML>
diff --git a/Master/texmf-dist/doc/support/texdraw/texdraw_5.html b/Master/texmf-dist/doc/support/texdraw/texdraw_5.html
deleted file mode 100644
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+++ /dev/null
@@ -1,314 +0,0 @@
-<HTML>
-<HEAD>
-<!-- Created by texi2html 1.56k from texdraw.texi on 10 March 2004 -->
-
-<TITLE>TeXdraw - 5. More Details</TITLE>
-</HEAD>
-<BODY>
-Go to the <A HREF="texdraw_1.html">first</A>, <A HREF="texdraw_4.html">previous</A>, <A HREF="texdraw_6.html">next</A>, <A HREF="texdraw_11.html">last</A> section, <A HREF="texdraw_toc.html">table of contents</A>.
-<P><HR><P>
-
-
-<H1><A NAME="SEC22" HREF="texdraw_toc.html#TOC22">5. More Details</A></H1>
-
-<P>
-The first part of this chapter offers some suggestions for strategies to
-isolate errors in TeX and TeXdraw input.  The second part of this
-chapter discusses implementational issues.  An awareness of these issues
-is useful if TeXdraw is to be extended.
-
-
-
-<UL>
-<LI><A HREF="texdraw_5.html#SEC23">Errors while using TeXdraw</A>
-<LI><A HREF="texdraw_5.html#SEC24">Extending TeXdraw</A>
-<LI><A HREF="texdraw_5.html#SEC29">How TeXdraw merges graphics and text</A>
-</UL>
-
-
-
-<H2><A NAME="SEC23" HREF="texdraw_toc.html#TOC23">5.1 Errors while using TeXdraw</A></H2>
-<P>
-<A NAME="IDX119"></A>
-<A NAME="IDX120"></A>
-
-
-<P>
-TeX input is notoriously difficult to debug.  If TeX reports
-errors, so much the better.  If the cause is not immediately obvious,
-consider using a binary search strategy, removing sections of code with
-the premature insertion of the <CODE>\bye</CODE> (or <CODE>\end{document}</CODE>
-for LaTeX) command (with the appropriate closing of any open groups
-and the like).  Other strategies include the insertion of
-<CODE>\message{I am here}</CODE> at appropriate places.  Try using
-<CODE>\tracingmacros=1</CODE>.  Many problems turn out to be due to an
-incorrect number of macro arguments or incorrectly delimited macro
-arguments.  The <CODE>\tracingmacros=1</CODE> option writes the macro
-arguments and macro expansions to the TeX log file.
-
-
-<P>
-Certain errors may not manifest themselves until well after the
-offending command.  For instance, if a closing parenthesis is missing
-from a TeXdraw coordinate, TeX continues searching for the
-parenthesis.  If one is found, perhaps many lines later, the TeXdraw
-error message <CODE>invalid coordinate</CODE> will be printed at this later
-point.
-
-
-<P>
-All input in the TeXdraw environment should be intended for
-interpretation by TeXdraw commands.  TeXdraw places text inside a
-zero size box (the text itself extends outside the box).  Extraneous
-input manifests itself as a non-zero size TeXdraw text box. This
-causes the TeXdraw text and the PostScript graphics to be displaced
-from one another.  An error message is issued if a non-zero width
-TeXdraw text box is detected.  If this error message appears, look
-for unintended character sequences amongst the commands to TeXdraw.
-
-
-<P>
-Several TeXdraw commands pass their arguments "raw" to the
-PostScript file.  That means that invalid arguments can generate
-PostScript errors when the document is printed.  For instance the
-argument of the <CODE>\setgray</CODE> command is passed straight through to
-the PostScript file.  If this argument is non-numeric, a PostScript
-error results.  Not all PostScript printers report errors back to the
-user.  The print may just stop prematurely.  One approach to debugging
-is to use a PostScript previewer on a workstation. That way, one can
-determine at which point in the drawing the PostScript error occurs.
-
-
-
-
-<H2><A NAME="SEC24" HREF="texdraw_toc.html#TOC24">5.2 Extending TeXdraw</A></H2>
-<P>
-<A NAME="IDX121"></A>
-
-
-<P>
-TeXdraw is implemented using a combination of TeX commands and
-PostScript code.  This section discusses some of the implementational
-issues as they relate to extending TeXdraw.
-
-
-<P>
-TeXdraw as implemented, offers a basic set of drawing features.
-These are adequate for certain tasks such as producing block diagrams.
-There are different approaches to extending TeXdraw to include other
-functions.  In some cases, the desired functionality can be achieved by
-writing a TeX macro which builds on top of the existing TeXdraw
-commands.  As these extensions become more complex, the limitations of
-TeX for computations become increasingly evident.  In other cases,
-access to different features of PostScript is desired.  The appropriate
-approach would be to write new PostScript procedures which can be
-accessed by TeX macros.
-
-
-<P>
-Included with TeXdraw is a set of macros for directly accessing
-PostScript functions.  These are described in an appendix
-(see section <A HREF="texdraw_6.html#SEC30">A. PostScript Commands</A>).
-
-
-<P>
-TeXdraw also comes with a toolbox of routines for handling much of
-the user interface, converting between different coordinate
-representations and the like.  The macros for coordinate decoding and
-for computations involving coordinates are described in an appendix
-(see section <A HREF="texdraw_7.html#SEC31">B. TeXdraw Toolbox</A>).
-
-
-
-<UL>
-<LI><A HREF="texdraw_5.html#SEC25">Scaling</A>
-<LI><A HREF="texdraw_5.html#SEC26">Resolution</A>
-<LI><A HREF="texdraw_5.html#SEC27">Text placement</A>
-<LI><A HREF="texdraw_5.html#SEC28">Intermediate PostScript file</A>
-</UL>
-
-
-
-<H3><A NAME="SEC25" HREF="texdraw_toc.html#TOC25">5.2.1 Scaling</A></H3>
-<P>
-<A NAME="IDX122"></A>
-
-
-<P>
-The scaling commands provided in TeXdraw are designed to affect only
-the coordinate values specified in commands.  For instance, changing the
-<CODE>\setunitscale</CODE> value changes the interpretation of the coordinate
-in an <CODE>\avec (<VAR>x</VAR> <VAR>y</VAR>)</CODE> command, but does not change the
-line width or arrowhead sizes in effect.  None of the TeXdraw scaling
-commands affect the size of TeX text produced by, for instance, the
-<CODE>\htext</CODE> command.  Scale changes will however affect the
-positioning of text for subsequent commands.
-
-
-<P>
-The line parameters are changed only if the corresponding commands to
-change them are issued.  If the <CODE>\linewd</CODE> command is given, the
-current coordinate scaling is used to determine the line width.  To
-achieve a behaviour more like a global scaling, whenever the scale
-factor is changed, the line parameters should be set again.
-
-
-
-
-<H3><A NAME="SEC26" HREF="texdraw_toc.html#TOC26">5.2.2 Resolution</A></H3>
-<P>
-<A NAME="IDX123"></A>
-
-
-<P>
-TeXdraw scales coordinates before passing them to PostScript.
-Keeping track of the coordinate scaling is necessary, in any event, to
-allow TeXdraw to compute the maximum excursions of the coordinates.
-TeXdraw uses pixel units in its PostScript code.  One pixel unit is
-equal to 1/300 of an inch.  TeXdraw issues PostScript commands with
-integer valued pixel coordinates.  This sets the positioning resolution
-for TeXdraw.  The passing of integer valued coordinates which
-correspond to the device resolution keeps lines aligned with the device
-grid; parallel lines of the same width will be rendered with the same
-width.
-
-
-<P>
-The position saving mechanism in TeXdraw (see section <A HREF="texdraw_3.html#SEC16">3.3 Saving positions</A>)
-associates the pixel coordinates of a position with the specified name.
-
-
-<P>
-TeXdraw uses the limited real number representation provided by
-TeX.  These operations are based on the representation of dimensions
-as real-valued numbers of points.  Internally in TeX, dimensions are
-stored 32-bit values, normalized so that 1 pt corresponds to the scaled
-point (sp) value of 65536.  Dimensions with magnitudes between 0.000015
-pt and 32767 pt can be represented.  This is also the dynamic range of
-the TeXdraw pixel coordinates passed to PostScript.  TeXdraw must
-convert from user supplied coordinates using the scaling factor (which
-itself consists of two components, the unit scale and the segment scale)
-and a pixel conversion factor.  The use of limited precision real
-numbers in these computations can cause accumulation of error when
-relative scaling is used repeatedly.
-
-
-
-
-<H3><A NAME="SEC27" HREF="texdraw_toc.html#TOC27">5.2.3 Text placement</A></H3>
-
-<P>
-While in the TeXdraw environment, TeX text is placed in a TeX
-box while PostScript code is written to the intermediate file.  At the
-end of the TeXdraw environment, the size of the drawing is
-determined.  A TeX box of this size is created.  The TeX
-<CODE>\special</CODE> mechanism is used to instruct the PostScript driver
-program to position the PostScript drawing from the intermediate file in
-this area.  Next, the text generated by TeXdraw is positioned and
-placed in the box.  Note that when the document is printed, the
-PostScript drawing is placed on the page before the TeX text; TeX
-text will appear on top of graphics.
-
-
-<P>
-<A NAME="IDX124"></A>
-<A NAME="IDX125"></A>
-The rotation of text is carried out with in-line PostScript code which
-does not appear in the intermediate PostScript file.  This code is sent
-to the PostScript driver with a <CODE>\special</CODE> command.  This
-PostScript code is embedded in the dvi (device independent) file that
-TeX produces.
-
-
-
-
-<H3><A NAME="SEC28" HREF="texdraw_toc.html#TOC28">5.2.4 The intermediate PostScript file</A></H3>
-<P>
-<A NAME="IDX126"></A>
-
-
-<P>
-The intermediate PostScript file consists of a header, a body and a
-trailer following Encapsulated PostScript File (EPSF) standards.  The
-header sets up PostScript definitions and default parameter values.  The
-trailer includes the <CODE>BoundingBox</CODE> information which gives the
-coordinates in default PostScript units (72 per inch) for the lower
-lefthand corner and the upper righthand corner of the drawing.  The body
-of the intermediate PostScript file contains the PostScript commands
-generated by TeXdraw.
-
-
-<P>
-Many moves in TeXdraw serve only to position text or to reset saved
-positions.  TeXdraw buffers move commands in order to be able to
-collapse runs of moves.  Only the last move of a run of moves is
-actually written to the PostScript file.  However the intermediate moves
-still affect the size of the drawing.  The expunging of moves means that
-the PostScript file <CODE>BoundingBox</CODE> information may indicate a drawing size
-larger than the PostScript commands themselves would warrant.
-
-
-<P>
-Drawing segments in TeXdraw show up in the PostScript file as saves
-and restores of the PostScript graphics state.  Segment starts are
-buffered and only written out if necessary.  This way "empty" segments
-do not generate output to the PostScript file.  These empty segments
-arise if a segment contains only moves and text commands.  The moves
-inside the segment are not needed since they are local to the segment,
-and the text commands do not generate output to the PostScript file.
-
-
-<P>
-If TeXdraw is used only for moves and text, no intermediate
-PostScript file will be created.
-
-
-
-
-<H2><A NAME="SEC29" HREF="texdraw_toc.html#TOC29">5.3 How TeXdraw merges graphics and text</A></H2>
-<P>
-<A NAME="IDX127"></A>
-<A NAME="IDX128"></A>
-<A NAME="IDX129"></A>
-
-
-<P>
-TeXdraw creates a box which is the same size as the graphic.  The
-printer driver will place the PostScript graphic into this space.  Any
-TeX text generated by the TeXdraw commands will be superimposed on
-this graphic.
-
-
-<P>
-<A NAME="IDX130"></A>
-<A NAME="IDX131"></A>
-The LaTeX2e front-end for TeXdraw is enabled by including the
-<CODE>texdraw</CODE> package.  The <CODE>texdraw</CODE> package automatically
-invokes the standard <CODE>graphics</CODE> package distributed with
-LaTeX2e.  The <CODE>graphics</CODE> package has support for a number of
-different printer drivers, including a number for PostScript printers.
-Any options to the <CODE>texdraw</CODE> package are passed on to the
-<CODE>graphics</CODE> package.  Such an option can be used to select a driver
-other than the default one.
-
-
-<P>
-<A NAME="IDX132"></A>
-<A NAME="IDX133"></A>
-<A NAME="IDX134"></A>
-<A NAME="IDX135"></A>
-<A NAME="IDX136"></A>
-Within the <CODE>graphics</CODE> package, the driver option is used to select
-definitions for the low-level macros which generate the <CODE>\special</CODE>
-commands needed to request insertion of a graphics file and to rotate
-text.<A NAME="DOCF2" HREF="texdraw_foot.html#FOOT2">(2)</A>
-TeXdraw uses the user-level macros defined by the <CODE>graphics</CODE>
-package (see section <A HREF="texdraw_4.html#SEC21">4.1 PostScript printer drivers</A>).  When not used with the
-LaTeX2e front-end, TeXdraw defines versions of these macros that
-are suitable for use with the <CODE>dvips</CODE> printer driver.
-
-
-<P><HR><P>
-Go to the <A HREF="texdraw_1.html">first</A>, <A HREF="texdraw_4.html">previous</A>, <A HREF="texdraw_6.html">next</A>, <A HREF="texdraw_11.html">last</A> section, <A HREF="texdraw_toc.html">table of contents</A>.
-</BODY>
-</HTML>
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-<HTML>
-<HEAD>
-<!-- Created by texi2html 1.56k from texdraw.texi on 10 March 2004 -->
-
-<TITLE>TeXdraw - A. PostScript Commands</TITLE>
-</HEAD>
-<BODY>
-Go to the <A HREF="texdraw_1.html">first</A>, <A HREF="texdraw_5.html">previous</A>, <A HREF="texdraw_7.html">next</A>, <A HREF="texdraw_11.html">last</A> section, <A HREF="texdraw_toc.html">table of contents</A>.
-<P><HR><P>
-
-
-<H1><A NAME="SEC30" HREF="texdraw_toc.html#TOC30">A. PostScript Commands</A></H1>
-<P>
-<A NAME="IDX137"></A>
-
-
-<P>
-This appendix describes a set of macros for accessing some of the
-PostScript builtin functions.  Each of these macros issues a single
-PostScript command.  The extra services provided by TeXdraw are the
-interpretation of coordinates in user units relative to the current
-drawing segment and the writing of a pending TeXdraw move to the
-PostScript file.  This last operation establishes the current point in
-PostScript.  The user of these commands should be familiar with the
-concepts of path construction and filling in PostScript.  Further
-details on the PostScript functions used can found in the
-<CITE>PostScript Language Reference Manual, Second Edition</CITE>, Adobe
-Systems, Addison-Wesley, 1990.
-
-
-<P>
-These macros are distributed in file <TT>`txdps.tex'</TT>.
-
-
-<P>
-The <CODE>\PSsetlinecap</CODE> and <CODE>\PSsetlinejoin</CODE> commands control the
-way line ends and line joins are rendered.  The default values set by
-TeXdraw (round caps and round join) are appropriate for most
-drawings.  Changes to these parameters apply to the current and
-subsequent paths.
-
-
-<P>
-<A NAME="IDX138"></A>
-<A NAME="IDX139"></A>
-<DL COMPACT>
-
-<DT><CODE>\PSsetlinecap <VAR>type</VAR></CODE>
-<DD>
-<A NAME="IDX140"></A>
- <A NAME="IDX141"></A>
- 
-Set the line cap parameter.  The value <CODE>0</CODE> gives a butt cap;
-<CODE>1</CODE> gives a round cap; and <CODE>2</CODE> gives a projecting square cap.
-The initial value is corresponds to a round cap.
-<A NAME="IDX142"></A>
-<A NAME="IDX143"></A>
-<DT><CODE>\PSsetlinejoin <VAR>type</VAR></CODE>
-<DD>
-Set the line join parameter.  The value <CODE>0</CODE> gives a miter join;
-<CODE>1</CODE> gives a round join; and <CODE>2</CODE> gives a bevel join.  The
-initial value corresponds to a round join.
-</DL>
-
-<P>
-<A NAME="IDX144"></A>
-<A NAME="IDX145"></A>
-<A NAME="IDX146"></A>
-<A NAME="IDX147"></A>
-PostScript paths and fill operations can be controlled by a number of
-functions.  By design, TeXdraw always maintains a defined PostScript
-current point.  Some of the following macros cause the PostScript
-current point to become undefined.  The PostScript current point must be
-set again (say with a <CODE>\PSmoveto</CODE> command) before invoking basic
-TeXdraw commands.
-<DL COMPACT>
-
-<DT><CODE>\PSstroke</CODE>
-<DD>
-<A NAME="IDX148"></A>
- <A NAME="IDX149"></A>
- 
-Stroke a PostScript path.  The current path is stroked with the current
-gray level (set with <CODE>\setgray</CODE>) and the current line pattern (set
-with <CODE>\lpatt</CODE>).  The PostScript current point becomes undefined.
-<A NAME="IDX150"></A>
-<A NAME="IDX151"></A>
-<DT><CODE>\PSnewpath</CODE>
-<DD>
-Establish a new path.  The PostScript current point becomes undefined.
-<A NAME="IDX152"></A>
-<A NAME="IDX153"></A>
-<DT><CODE>\PSclosepath</CODE>
-<DD>
-Close a subpath.  A new subpath is started.
-<A NAME="IDX154"></A>
-<A NAME="IDX155"></A>
-<DT><CODE>\PSfill</CODE>
-<DD>
-Fill a region defined by a path.  Each subpath is closed and the
-enclosed regions painted with the current gray level.  The PostScript
-current point becomes undefined.  The gray level can be set with the
-TeXdraw command <CODE>\setgray</CODE>.
-</DL>
-
-<P>
-The following line commands interpret coordinates relative to the
-current TeXdraw scaling and drawing segment.  The specified
-coordinate affects the drawing size as determined by TeXdraw.
-<A NAME="IDX156"></A>
-<A NAME="IDX157"></A>
-<DL COMPACT>
-
-<DT><CODE>\PSlineto (<VAR>x</VAR> <VAR>y</VAR>)</CODE>
-<DD>
-<A NAME="IDX158"></A>
- <A NAME="IDX159"></A>
- 
-Add a line segment to the current path.  This command is identical to
-the TeXdraw command <CODE>\lvec</CODE>.  The PostScript current point must
-be defined before this command is issued.
-<A NAME="IDX160"></A>
-<A NAME="IDX161"></A>
-<DT><CODE>\PSmoveto (<VAR>x</VAR> <VAR>y</VAR>)</CODE>
-<DD>
-Move to the coordinate specified by <CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>.  The
-PostScript current point becomes defined.
-</DL>
-
-<P>
-The following macros provide access to the general arc commands in
-PostScript.  The coordinates are interpreted relative to the current
-TeXdraw scaling and drawing segment.  The specified coordinate
-affects the drawing size as determined by TeXdraw.
-<A NAME="IDX162"></A>
-<DL COMPACT>
-
-<DT><CODE>\PSarc r:<VAR>radius</VAR> sd:<VAR>start-angle</VAR> ed:<VAR>end-angle</VAR> (<VAR>x</VAR> <VAR>y</VAR>)</CODE>
-<DD>
-<A NAME="IDX163"></A>
- <A NAME="IDX164"></A>
- 
-Draw a counterclockwise arc.  The center of the arc is at the given
-position.  The radius is specified by <VAR>radius</VAR>.  The start and end
-angles (in degrees) are specified by <VAR>start-angle</VAR> and
-<VAR>end-angle</VAR>.  If the PostScript current point is defined, this
-command also draws the line from the current point to the beginning of
-the arc.  The line and arc become part of the current path. The current
-point becomes defined.
-<A NAME="IDX165"></A>
-<A NAME="IDX166"></A>
-<DT><CODE>\PSarcn r:<VAR>radius</VAR> sd:<VAR>start-angle</VAR> ed:<VAR>end-angle</VAR> (<VAR>x</VAR> <VAR>y</VAR>)</CODE>
-<DD>
-Draw a clockwise arc.  The center of the arc is at the given position.
-The radius is specified by <VAR>radius</VAR>.  The start and end angles (in
-degrees) are specified by <VAR>start-angle</VAR> and <VAR>end-angle</VAR>.  If the
-PostScript current point is defined, this command also draws the line
-from the current point to the beginning of the arc.  The line and arc
-become part of the current path.  The current point becomes defined.
-</DL>
-
-<P>
-The macro <CODE>\writeps</CODE> provides the general facility to write
-arbitrary PostScript commands to the PostScript file.  This macro is
-used by the preceding commands and by the TeXdraw commands
-themselves.  This facility has to be used with care since changes in
-position or scaling resulting from the PostScript commands are not known
-to TeXdraw.
-<DL COMPACT>
-
-<DT><CODE>\writeps {<VAR>&#60;ps-commands&#62;</VAR>}</CODE>
-<DD>
-<A NAME="IDX167"></A>
- 
-Write PostScript commands to the intermediate PostScript file.  Before
-the commands are inserted, any pending TeXdraw move is written to the
-PostScript file.  The PostScript scaling gives 300 units/inch.
-</DL>
-
-<P><HR><P>
-Go to the <A HREF="texdraw_1.html">first</A>, <A HREF="texdraw_5.html">previous</A>, <A HREF="texdraw_7.html">next</A>, <A HREF="texdraw_11.html">last</A> section, <A HREF="texdraw_toc.html">table of contents</A>.
-</BODY>
-</HTML>
diff --git a/Master/texmf-dist/doc/support/texdraw/texdraw_7.html b/Master/texmf-dist/doc/support/texdraw/texdraw_7.html
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--- a/Master/texmf-dist/doc/support/texdraw/texdraw_7.html
+++ /dev/null
@@ -1,250 +0,0 @@
-<HTML>
-<HEAD>
-<!-- Created by texi2html 1.56k from texdraw.texi on 10 March 2004 -->
-
-<TITLE>TeXdraw - B. TeXdraw Toolbox</TITLE>
-</HEAD>
-<BODY>
-Go to the <A HREF="texdraw_1.html">first</A>, <A HREF="texdraw_6.html">previous</A>, <A HREF="texdraw_8.html">next</A>, <A HREF="texdraw_11.html">last</A> section, <A HREF="texdraw_toc.html">table of contents</A>.
-<P><HR><P>
-
-
-<H1><A NAME="SEC31" HREF="texdraw_toc.html#TOC31">B. TeXdraw Toolbox</A></H1>
-
-<P>
-This appendix describes some of the macros supplied with TeXdraw
-which can be used to define additional commands for creating drawings.
-The macros described here work in the user specified coordinate system.
-Some of these toolbox macros are used by the TeXdraw commands
-themselves, others are supplied in an auxiliary file
-<TT>`txdtools.tex'</TT>.
-
-
-
-<UL>
-<LI><A HREF="texdraw_7.html#SEC32">Coordinate parsing</A>
-<LI><A HREF="texdraw_7.html#SEC33">Real arithmetic</A>
-<LI><A HREF="texdraw_7.html#SEC34">Arrow curve</A>
-</UL>
-
-
-
-<H2><A NAME="SEC32" HREF="texdraw_toc.html#TOC32">B.1 Coordinate parsing</A></H2>
-
-<P>
-The coordinate parsing macro <CODE>\getpos</CODE> is useful for creating new
-commands.  This macro takes care of stripping leading and trailing
-blanks from coordinates specified between parentheses.  In addition,
-symbolic coordinates are translated to the corresponding relative
-coordinate using the segment offset and scaling in effect.
-
-
-<P>
-The macro <CODE>\currentpos</CODE> returns the relative coordinates of the
-current position.  The returned values are relative to the current
-segment and the current scaling.  The macro <CODE>\cossin</CODE> returns the
-real-valued cosine and sine of the direction of the line joining two
-points.  The macro <CODE>\vectlen</CODE> returns the length of a vector.  The
-results appear as the value of user supplied macro names.
-
-
-<P>
-<A NAME="IDX168"></A>
-<A NAME="IDX169"></A>
-<A NAME="IDX170"></A>
-<A NAME="IDX171"></A>
-<A NAME="IDX172"></A>
-<A NAME="IDX173"></A>
-<A NAME="IDX174"></A>
-<DL COMPACT>
-
-<DT><CODE>\getpos (<VAR>x</VAR> <VAR>y</VAR>)\<VAR>mx</VAR>\<VAR>my</VAR></CODE>
-<DD>
-<A NAME="IDX175"></A>
- 
-Decode coordinate values. The coordinates specified by <CODE>(<VAR>x</VAR>
-<VAR>y</VAR>)</CODE> are decoded. Symbolic coordinates are translated to the
-corresponding relative coordinate using the current segment offset and
-scaling.  The resulting character strings representing the real-valued
-coordinates are assigned to the macros specified by <CODE>\<VAR>mx</VAR></CODE> and
-<CODE>\<VAR>my</VAR></CODE>.
-<A NAME="IDX176"></A>
-<DT><CODE>\currentpos \<VAR>mx</VAR>\<VAR>my</VAR></CODE>
-<DD>
-Return the coordinates of the current position.  The coordinates are
-relative to the current segment offset and scaling.  The resulting
-character strings representing the real-valued coordinates are assigned
-to the macros specified by <CODE>\<VAR>mx</VAR></CODE> and <CODE>\<VAR>my</VAR></CODE>.
-<A NAME="IDX177"></A>
-<DT><CODE>\cossin (<VAR>x1</VAR> <VAR>y1</VAR>)(<VAR>x2</VAR> <VAR>y2</VAR>)\<VAR>cosa</VAR>\<VAR>sina</VAR></CODE>
-<DD>
-Return the cosine and sine of the direction of a vector joining two
-points.  The cosine and sine of the angle of the vector which goes from
-<CODE>(<VAR>x1</VAR> <VAR>y1</VAR>)</CODE> to <CODE>(<VAR>x2</VAR> <VAR>y2</VAR>)</CODE>.  The character
-strings representing these real-valued quantities are assigned to the
-macros specified by <CODE>\<VAR>cosa</VAR></CODE> and <CODE>\<VAR>sina</VAR></CODE>.
-<A NAME="IDX178"></A>
-<DT><CODE>\vectlen (<VAR>x1</VAR> <VAR>y1</VAR>)(<VAR>x2</VAR> <VAR>y2</VAR>)\<VAR>len</VAR></CODE>
-<DD>
-Return the length of a vector joining two points.  The length of the
-vector is relative to the current scaling.  The character string
-representing the real-valued length is assigned to the macro specified
-by <CODE>\<VAR>len</VAR></CODE>.
-</DL>
-
-
-
-<H2><A NAME="SEC33" HREF="texdraw_toc.html#TOC33">B.2 Real arithmetic</A></H2>
-
-<P>
-The TeXdraw toolbox supplies macros to perform real arithmetic on
-coordinate values.  The result appears as the value of a user supplied
-macro name.
-<DL COMPACT>
-
-<DT><CODE>\realadd {<VAR>value1</VAR>} {<VAR>value2</VAR>} \<VAR>sum</VAR></CODE>
-<DD>
-<A NAME="IDX179"></A>
- 
-Add two real quantities, assigning the resultant character string
-representing the sum to the macro <CODE>\<VAR>sum</VAR></CODE>.
-<A NAME="IDX180"></A>
-<DT><CODE>\realmult {<VAR>value1</VAR>} {<VAR>value2</VAR>} \<VAR>prod</VAR></CODE>
-<DD>
-Multiply two real quantities, assigning the resultant character string
-representing the product to the macro <CODE>\<VAR>prod</VAR></CODE>.
-<A NAME="IDX181"></A>
-<DT><CODE>\realdiv {<VAR>value1</VAR>} {<VAR>value2</VAR>} \<VAR>result</VAR></CODE>
-<DD>
-Divide two real quantities, assigning the resultant character string
-representing the result of <VAR>value1</VAR>/<VAR>value2</VAR> to the macro
-<CODE>\<VAR>result</VAR></CODE>.
-</DL>
-
-
-
-<H2><A NAME="SEC34" HREF="texdraw_toc.html#TOC34">B.3 Arrow curve</A></H2>
-<P>
-<A NAME="IDX182"></A>
-
-
-<P>
-This example illustrates the use of the TeXdraw toolbox routines to
-do computations with the coordinates.  The problem will be tackled in
-two parts.  First, we will produce a macro to place an arrowhead on a
-Bezier curve.  Then given this macro, we will produce a macro which can
-draw a "wiggly" line from the current position to a given coordinate.
-
-
-<P>
-The first macro, <CODE>\cavec</CODE>, uses the <CODE>\cossin</CODE> command to
-determine the the cosine and sine of the angle of the line joining the
-second control point to the end point of the Bezier curve.  Recall that
-the Bezier curve is tangent to this line at the end point.  After
-drawing the Bezier curve, the scaling is set locally to absolute units
-of 0.05 inches.  We go back down the line from the end point by 0.05
-inches and draw an arrow vector to the end point from there.  This arrow
-vector is mostly arrowhead, with little or no tail.
-
-
-
-<PRE>
-\def\cavec (#1 #2)(#3 #4)(#5 #6){
-  \clvec (#1 #2)(#3 #4)(#5 #6)
-  \cossin (#3 #4)(#5 #6)\cosa\sina
-  \rmove (0 0)
-  \bsegment
-    \drawdim in \setsegscale 0.05
-    \move ({-\cosa} -\sina)  \avec (0 0)
-  \esegment}
-</PRE>
-
-<P>
-Note the use of macros as arguments to a <CODE>\move</CODE> command.  Minus
-signs are put in front of the macros.  However, the value of the macro
-<CODE>\cosa</CODE> or <CODE>\sina</CODE> could be negative.  Fortunately, TeX
-accepts two minus signs in a row and interprets the result as positive.
-Note that the <CODE>\rmove (0 0)</CODE> command before the beginning of the
-segment ensures that the Bezier curve is stroked before the arrowhead is
-drawn.
-
-
-<P>
-The second macro <CODE>\caw</CODE> builds on <CODE>\cavec</CODE>.  The goal is to
-produce a wiggly vector that can be used as a pointer in a drawing.
-Consider the following symmetrical normalized Bezier curve.
-
-<PRE>
-\centertexdraw{ \move (0 0) \cavec (1.4 0.1)(-0.4 -0.1)(1 0) }
-</PRE>
-
-<P>
-This curve has the appropriate wiggle.  Now we want to be able to draw
-this curve, appropriately scaled and rotated.  The macro <CODE>\caw</CODE>
-needs to do computations on the coordinates.  First, <CODE>\caw</CODE> uses
-the macros <CODE>\getpos</CODE> and <CODE>\currentpos</CODE> to get the positions of
-the end and start of the curve.  Next, the length of the vector is
-calculated using the macro <CODE>\vectlen</CODE>.  A local macro
-<CODE>\rotatecoord</CODE> is used to rotate a coordinate pair about the
-origin, using the cosine and sine of the rotation angle.  The vector
-length is used to scale the normalized curve.  The remaining code draws
-the rotated, normalized curve.
-
-
-
-<PRE>
-\def\caw (#1 #2){
-  \currentpos \xa\ya
-  \cossin ({\xa} \ya)(#1 #2)\cosa\sina
-
-% The nominal wiggly curve is (0 0) (1+dx dy) (-dx -dy) (1 0)
-% Find the rotated offset (dx dy) -&#62; (du dv)
-  \rotatecoord (0.4 0.1)\cosa\sina \du\dv
-
-% calculate the length of the vector
-  \vectlen ({\xa} \ya)(#1 #2)\len
-
-% draw the curve in normalized units
-  \bsegment
-    \setsegscale {\len}
-    \realadd \cosa \du \tmpa  \realadd \sina \dv \tmpb
-    \cavec ({\tmpa} \tmpb)({-\du} -\dv)({\cosa} \sina)
-  \esegment
-  \move (#1 #2)}
-
-% rotate a coordinate (x y)
-% arguments: (x y) cosa sina x' y'
-%  x' = cosa * x - sina * y;  y' = sina * x + cosa * y
-\def\rotatecoord (#1 #2)#3#4#5#6{
-  \getpos (#1 #2)\xarg\yarg
-  \realmult \xarg {#3} \tmpa  \realmult \yarg {#4} \tmpb
-  \realadd \tmpa {-\tmpb} #5
-  \realmult \xarg {#4} \tmpa  \realmult \yarg {#3} \tmpb
-  \realadd \tmpa \tmpb #6}
-</PRE>
-
-<P>
-Finally, the new macro can be used as follows.
-
-<PRE>
-\centertexdraw{
-  \arrowheadtype t:W
-  \move (0 0)
-  \cavec (1.4 0.1)(-0.4 -0.1)(1 0)
-  \move (1 0) \caw (1 1) \htext{tip at \tt (1 1)}
-  \move (1 0) \caw (2 1) \htext{tip at \tt (2 1)}
-  \move (1 0) \caw (2 0) \htext{tip at \tt (2 0)}
-
-}
-</PRE>
-
-<P>
-Note that the Bezier curve in the macro <CODE>\cavec</CODE> lies below the
-arrowhead.  The example then draws an arrowhead of type <CODE>W</CODE> to
-erase the part of the line below the arrowhead.
-
-
-<P><HR><P>
-Go to the <A HREF="texdraw_1.html">first</A>, <A HREF="texdraw_6.html">previous</A>, <A HREF="texdraw_8.html">next</A>, <A HREF="texdraw_11.html">last</A> section, <A HREF="texdraw_toc.html">table of contents</A>.
-</BODY>
-</HTML>
diff --git a/Master/texmf-dist/doc/support/texdraw/texdraw_8.html b/Master/texmf-dist/doc/support/texdraw/texdraw_8.html
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-<HTML>
-<HEAD>
-<!-- Created by texi2html 1.56k from texdraw.texi on 10 March 2004 -->
-
-<TITLE>TeXdraw - C. Examples</TITLE>
-</HEAD>
-<BODY>
-Go to the <A HREF="texdraw_1.html">first</A>, <A HREF="texdraw_7.html">previous</A>, <A HREF="texdraw_9.html">next</A>, <A HREF="texdraw_11.html">last</A> section, <A HREF="texdraw_toc.html">table of contents</A>.
-<P><HR><P>
-
-
-<H1><A NAME="SEC35" HREF="texdraw_toc.html#TOC35">C. Examples</A></H1>
-<P>
-<A NAME="IDX183"></A>
-
-
-<P>
-This appendix shows examples of the use of TeXdraw.
-
-
-
-<UL>
-<LI><A HREF="texdraw_8.html#SEC36">Block diagram</A>
-<LI><A HREF="texdraw_8.html#SEC37">Filter response graph</A>
-<LI><A HREF="texdraw_8.html#SEC38">Geometric construction</A>
-</UL>
-
-
-
-<H2><A NAME="SEC36" HREF="texdraw_toc.html#TOC36">C.1 Block diagram of a lattice filter</A></H2>
-
-<P>
-The block diagram of a lattice filter uses a library of extended
-commands built from the basic TeXdraw commands.
-
-
-<P>
-The block diagram uses a "delay" block.  This is defined as a segment
-which leaves the current position at the end of this block.  A second
-macro, <CODE>\bdot</CODE>, draws a "big" dot which is used to mark junctions
-of lines.  The <CODE>\Ttext</CODE> command centers text above a given point.
-The offset to position the text is local to a segment, resulting in no
-change to the current point.  Similar macros to position text below a
-point (<CODE>\Btext</CODE>), to the left of a point (<CODE>\Ltext</CODE>) and to the
-right of a point (<CODE>\Rtext</CODE>) are used in the final drawing.
-
-<PRE>
-\def\delay {\bsegment
-              \setsegscale 0.3
-              \lvec (0 +0.5) \lvec (1 +0.5) \lvec (1 -0.5)
-              \lvec (0 -0.5) \lvec (0 0)
-              \textref h:C v:C  \htext (0.5 0){$z^{-1}$}
-              \savepos (1 0)(*ex *ey)
-            \esegment
-            \move (*ex *ey)}
-\def\bdot {\fcir f:0 r:0.02 }
-\def\Ttext #1{\bsegment
-                \textref h:C v:B  \htext (0 +0.06){#1}
-              \esegment}
-</PRE>
-
-<P>
-Several of the block diagram elements scale with the size of the summing
-nodes.  The radius of the circles for the summing nodes is defined as
-the macro <CODE>\cradius</CODE>.  The summing nodes will have enclosed plus
-signs, appropriately scaled.  The plus sign is drawn by the macro
-<CODE>\pluss</CODE>.  The macro <CODE>\pcir</CODE> draws both the circle and the
-plus sign.  The incoming lines to a summing node will be labelled with
-plus or minus signs (characters this time), placed at the appropriate
-position with respect to the center of the summing node.  These
-positions are given in terms of compass directions.  The macro
-<CODE>\putwnw</CODE> places text west by north-west relative to the center of
-the summing node.
-
-<PRE>
-\def\cradius {0.08}
-\def\pluss {\bsegment
-               \setsegscale {\cradius}
-               \move (-0.5 0) \lvec (+0.5 0)
-               \move (0 -0.5) \lvec (0 +0.5)
-             \esegment}
-\def\pcir {\lcir r:{\cradius} \pluss}
-\def\puttext (#1 #2)#3{\bsegment
-                         \setsegscale {\cradius}
-                         \textref h:C v:C \htext (#1 #2){#3}
-                       \esegment}
-\def\putwnw #1{\puttext (-1.7 +1.2){#1}}
-</PRE>
-
-<P>
-The block diagram has vectors arriving and departing from the summing
-nodes (circles).  One could calculate the points of intersection of the
-lines with the circles, and then enter the values into the TeXdraw
-code.  However, in this example, we implement an automated procedure.
-Two macros are needed, an arrow vector to a circle (<CODE>\avectoc</CODE>) and
-an arrow vector leaving from a circle (<CODE>\avecfrc</CODE>).  The macros
-will calculate the point of intersection with the circle and start or
-end the vector at the intersection point.
-
-
-<P>
-The arrow macros use scaling and relative positioning inside of a
-drawing segment.  In the case of the macro <CODE>\avectoc</CODE>, a move is
-made to the final point (center of the circle), then within a drawing
-segment, a scaled move is made back towards the initial point to
-determine the intersection point with the circle.
-
-
-
-<PRE>
-\def\avectoc (#1 #2){\currentpos \xa\ya
-                     \cossin ({\xa} \ya)(#1 #2)\cosa\sina
-                     \savepos (#1 #2)(*tx *ty)
-                     \bsegment
-                       \move (*tx *ty)
-                       \setsegscale {\cradius}
-                       \rmove ({-\cosa} -\sina)
-                       \savecurrpos (*ex *ey)
-                     \esegment
-                     \avec (*ex *ey)
-                     \move (#1 #2)}
-\def\avecfrc (#1 #2){\currentpos \xa\ya
-                     \cossin ({\xa} \ya)(#1 #2)\cosa\sina
-                     \bsegment
-                       \setsegscale {\cradius}
-                       \move ({\cosa} \sina)
-                       \savecurrpos (*ex *ey)
-                     \esegment
-                     \move (*ex *ey)
-                     \avec (#1 #2)}
-</PRE>
-
-<P>
-Having defined these macros, we are ready to draw the block diagram.
-The first and last sections of the lattice filter are very similar,
-differing mainly in the text labels.  With more effort, code could be
-shared between the commands used to draw these blocks.
-
-<PRE>
-\centertexdraw{
-\drawdim in
-\arrowheadtype t:F  \arrowheadsize l:0.08 w:0.04
-\def\pl {$\scriptscriptstyle +$} \def\mn {$\scriptscriptstyle -$}
-
-\move (0 +0.63) \move (0 -0.60) \move (0 0) % compensate for the text size
-
-% Input to the first stage
-\bsegment
-  \Ltext{$x(n)$}
-  \lvec (0.3 0) \bdot \lvec (0.3 +0.4) \move (0.3 0) \lvec (0.3 -0.4)
-  \savepos (0.3 0)(*ex *ey)
-\esegment
-\move (*ex *ey)
-
-% first lattice stage
-\bsegment
-  \move (0 +0.4)  \avectoc (1.7 +0.4)
-  \pcir \putwnw{\pl} \puts{\mn}
-  \avecfrc (2.1 +0.4)
-  \move (0 -0.4)  \avec (0.4 -0.4) \delay \avectoc (1.7 -0.4)
-  \pcir \putwsw{\pl} \putn{\mn}
-  \avecfrc (2.1 -0.4)
-  \move (0.9 +0.4)  \bdot  \avectoc (1.7 -0.4)
-  \move (0.9 -0.4)  \bdot  \avectoc (1.7 +0.4)
-  \move (0.1 +0.42) \Ttext {$f_0(n)$}
-  \move (2.0 +0.42) \Ttext {$f_1(n)$}
-  \move (0.1 -0.4)  \Btext {$b_0(n)$}
-  \move (2.0 -0.4)  \Btext {$b_1(n)$}
-  \textref h:L v:B  \htext (1.15 +0.2){$K_1$}
-  \textref h:L v:T  \htext (1.15 -0.2){$K_1$}
-  \savepos (2.1 0)(*ex *ey)
-\esegment
-\move (*ex *ey)
-
-% center section
-\bsegment
-  \textref h:C v:C \htext (0.3 +0.4){$\cdots$}
-  \htext (0.3 -0.4){$\cdots$}
-  \savepos (0.6 0)(*ex *ey)
-\esegment
-\move (*ex *ey)
-
-% last lattice stage
-\bsegment
-  \move (0 +0.4)  \avectoc (1.7 +0.4)
-  \pcir \putwnw{\pl} \puts{\mn}
-  \avecfrc (2.3 +0.4) \Rtext{$e(n)$}
-  \move (0 -0.4)  \avec (0.4 -0.4) \delay \avectoc (1.7 -0.4)
-  \pcir \putwsw{\pl} \putn{\mn}
-  \avecfrc (2.1 -0.4)
-  \move (0.9 +0.4)  \bdot  \avectoc (1.7 -0.4)
-  \move (0.9 -0.4)  \bdot  \avectoc (1.7 +0.4)
-  \move (0.1 +0.42) \Ttext {$f_{P-1}(n)$}
-  \move (2.0 +0.42) \Ttext {$f_P(n)$}
-  \move (0.1 -0.4)  \Btext {$b_{P-1}(n)$}
-  \move (2.0 -0.4)  \Btext {$b_P(n)$}
-  \textref h:L v:B  \htext (1.15 +0.2){$K_P$}
-  \textref h:L v:T  \htext (1.15 -0.2){$K_P$}
-\esegment
-}
-</PRE>
-
-<P>
-The macros used in this example are similar to the block diagram macros
-defined in the file <TT>`blockdiagram.tex'</TT>.
-
-
-
-
-<H2><A NAME="SEC37" HREF="texdraw_toc.html#TOC37">C.2 Filter response graph</A></H2>
-<P>
-<A NAME="IDX184"></A>
-
-
-<P>
-This example shows the response of a canonical filter.  TeXdraw is
-not well suited for general purpose graphing -- it has no coordinate
-translation facility nor does it have separate <VAR>x</VAR> and <VAR>y</VAR>
-scaling.  Nonetheless, for certain simple graphs, TeXdraw is
-adequate.
-
-
-<P>
-In this example, macro <CODE>\ticklab</CODE> places a labelled axis tick at a
-given position.  The data is specified in a straightforward manner,
-having been scaled beforehand to give the desired aspect ratio for the
-graph.
-
-
-
-<PRE>
-\centertexdraw{
-\arrowheadtype t:F  \arrowheadsize l:0.08 w:0.04
-\def\ds {\displaystyle}
-\def\ticklab (#1 #2)#3{\move(#1 #2)
-                       \bsegment
-                         \lvec (0 0.05)
-                         \textref h:C v:T \htext (0 -0.05){#3}
-                       \esegment}
-\def\Rtext #1{\bsegment
-                \textref h:L v:C \htext (+0.08 0){#1}
-              \esegment}
-
-\move (2.4 -0.3)    % move to set the size
-
-\move (0 0)
-% Axes
-\avec (0 +1.4)
-\move (0 0) \avec (2.2 0) \Rtext{$\omega$}
-\ticklab (0 0)   {0}
-\ticklab (0.8 0) {$\ds {\pi \over 2N} $}
-\ticklab (1.2 0) {$\omega_s$}
-\ticklab (1.6 0) {$\ds {\pi \over N} $}
-
-\linewd 0.025
-\move (0 1)
-\lvec (0.4 1)
-\lvec (0.44 0.998)
-\lvec (0.48 0.988)
-\lvec (0.52 0.973)
-\lvec (0.56 0.951)
- ...
-\lvec (1.08 0.233)
-\lvec (1.12 0.156)
-\lvec (1.16 0.078)
-\lvec (1.20 0)
-\lvec (1.9 0)
-}
-</PRE>
-
-
-
-<H2><A NAME="SEC38" HREF="texdraw_toc.html#TOC38">C.3 Geometric construction</A></H2>
-<P>
-<A NAME="IDX185"></A>
-
-
-<P>
-This example shows a geometric construction which places an ellipse
-tangent to an enclosing circle.  The size of the ellipse is determined
-from geometric considerations.  Macros are used to modularize the code.
-The example alters the unit scale factor.  This allows the drawing to be
-carried out in units normalized to the radius of the circle.
-
-
-
-<PRE>
-\centertexdraw{
-\arrowheadtype t:V \arrowheadsize l:0.08 w:0.04
-\linewd 0.01
-\setunitscale 1.5            % circle will have radius 1.5 inches
-
-\def\Btext #1{\bsegment
-                \textref h:C v:T \htext (0 -0.04){#1}
-              \esegment}
-\def\Ttext #1{\bsegment
-                \textref h:C v:B \htext (0 +0.04){#1}
-              \esegment}
-\def\Ltext #1{\bsegment
-                \textref h:R v:C \htext (-0.04 0){#1}
-              \esegment}
-\def\bdot {\fcir f:0 r:0.0133 }
-\def\vtick {\bsegment
-              \move (0 -0.05) \lvec (0 +0.05)
-            \esegment}
-\def\htick {\bsegment
-              \move (-0.05 0) \lvec (+0.05 0)
-            \esegment}
-\def\Hlen #1#2{\bsegment
-                 \vtick \avec ({#1} 0) \vtick \avec (0 0)
-                 \relsegscale 0.5
-                 \move ({#1} 0) \Ttext {#2}
-               \esegment}
-\def\Vlen #1#2{\bsegment
-                 \htick \avec (0 {#1}) \htick \avec (0 0)
-                 \relsegscale 0.5
-                 \move (0 {#1}) \Ltext {#2}
-               \esegment}
-
-\lcir r:1                         % circle
-\move (-1.05 0) \lvec ( 1.05 0)   % axes
-\move (0 -1.05) \lvec (0  1.05)
-
-\move (0 0) \lvec (0.707 0.707) \bdot
-\rmove (0.02 0.02) \textref h:L v:B \htext {X}
-\move (0.707 -0.707) \bdot
-\textref h:R v:T \htext(-0.02 -0.02){O}
-
-\move (0.5 0)                     % center of ellipse
-\bsegment
-  \lellip rx:0.435 ry:0.804
-  \bdot \Btext {$\beta_2$}
-  \move (0 0.15) \Hlen {0.435}{$|\beta_1{+}\beta_3|$}
-  \move (-0.7 0) \Vlen {0.804}{$|\beta_1{-}\beta_3|$}
-\esegment
-}
-</PRE>
-
-<P><HR><P>
-Go to the <A HREF="texdraw_1.html">first</A>, <A HREF="texdraw_7.html">previous</A>, <A HREF="texdraw_9.html">next</A>, <A HREF="texdraw_11.html">last</A> section, <A HREF="texdraw_toc.html">table of contents</A>.
-</BODY>
-</HTML>
diff --git a/Master/texmf-dist/doc/support/texdraw/texdraw_9.html b/Master/texmf-dist/doc/support/texdraw/texdraw_9.html
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--- a/Master/texmf-dist/doc/support/texdraw/texdraw_9.html
+++ /dev/null
@@ -1,321 +0,0 @@
-<HTML>
-<HEAD>
-<!-- Created by texi2html 1.56k from texdraw.texi on 10 March 2004 -->
-
-<TITLE>TeXdraw - D. Alphabetic listing of commands</TITLE>
-</HEAD>
-<BODY>
-Go to the <A HREF="texdraw_1.html">first</A>, <A HREF="texdraw_8.html">previous</A>, <A HREF="texdraw_10.html">next</A>, <A HREF="texdraw_11.html">last</A> section, <A HREF="texdraw_toc.html">table of contents</A>.
-<P><HR><P>
-
-
-<H1><A NAME="SEC39" HREF="texdraw_toc.html#TOC39">D. Alphabetic listing of commands</A></H1>
-<P>
-<A NAME="IDX186"></A>
-
-
-<DL COMPACT>
-
-<DT><CODE>\arrowheadsize l:<VAR>length</VAR> w:<VAR>width</VAR></CODE>
-<DD>
-Set the arrowhead size to be <VAR>length</VAR> units long and <VAR>width</VAR>
-units wide.  The width is measured across the "base" of the arrowhead.
-The initial arrowhead size has a <VAR>length</VAR> of 0.16 inches and a
-<VAR>width</VAR> of 0.08 inches.
-
-<DT><CODE>\arrowheadtype t:<VAR>type</VAR></CODE>
-<DD>
-Set the arrowhead type to <VAR>type</VAR>, where <VAR>type</VAR> is one of
-<CODE>F</CODE>, <CODE>T</CODE>, <CODE>W</CODE>, <CODE>V</CODE>, or <CODE>H</CODE>.  There are two
-kinds of arrowheads.  The first kind is a triangle.  There are 3
-variants: type <CODE>T</CODE> is an empty triangle, type <CODE>F</CODE> is a filled
-triangle (using the current gray level for lines), type <CODE>W</CODE> is a
-triangle filled with white.  The second kind of arrowhead is an open
-ended Vee.  There are 2 variants: type <CODE>V</CODE> has the stem continue to
-the tip, type <CODE>H</CODE> has the stem stop at the base of the arrowhead.
-The initial arrowhead type is <CODE>T</CODE>.
-
-<DT><CODE>\avec (<VAR>x</VAR> <VAR>y</VAR>)</CODE>
-<DD>
-Draw a line with an arrowhead from the current position to
-<CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>.  The new current position is <CODE>(<VAR>x</VAR>
-<VAR>y</VAR>)</CODE>.  The arrowhead is aligned with the line, with the tip at
-<CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>.
-
-<DT><CODE>\begin{texdraw}</CODE>
-<DD>
-Start a TeXdraw drawing.  The drawing is terminated with an
-<CODE>\end{texdraw}</CODE> command.  This command is for use with LaTeX.
-
-<DT><CODE>\bsegment</CODE>
-<DD>
-Start a drawing segment.  The coordinate system is shifted such that the
-current position corresponds to the coordinate <CODE>(0 0)</CODE>.  Changes to
-scaling, position and line parameters stay local to the drawing segment.
-
-<DT><CODE>\btexdraw</CODE>
-<DD>
-Start a TeXdraw drawing.  The drawing is terminated with an
-<CODE>\etexdraw</CODE> command.
-
-<DT><CODE>\centertexdraw { ... }</CODE>
-<DD>
-Center a TeXdraw box.  The argument contains TeXdraw commands.
-The resulting box has the horizontal size <CODE>\hsize</CODE> and height equal
-to the height of the drawing.
-
-<DT><CODE>\clvec (<VAR>x1</VAR> <VAR>y1</VAR>)(<VAR>x2</VAR> <VAR>y2</VAR>)(<VAR>x3</VAR> <VAR>y3</VAR>)</CODE>
-<DD>
-Draw a Bezier curve from the current position to the coordinate
-<CODE>(<VAR>x3</VAR> <VAR>y3</VAR>)</CODE> which becomes the new current position.  The
-coordinates <CODE>(<VAR>x1</VAR> <VAR>y1</VAR>)</CODE> and <CODE>(<VAR>x2</VAR> <VAR>y2</VAR>)</CODE>
-serve as control points for the curve.  Only the last coordinate given
-is used to update the size of the drawing.
-
-<DT><CODE>\drawbb</CODE>
-<DD>
-Draw a ruled box around the effective size of a drawing produced by
-TeXdraw commands.
-
-<DT><CODE>\drawdim <VAR>dim</VAR></CODE>
-<DD>
-Set the units to <VAR>dim</VAR>.  The argument <VAR>dim</VAR> can be any valid
-TeX dimension unit.  The units are used to interpret coordinate
-values.  Examples of valid units: <CODE>cm</CODE>, <CODE>mm</CODE>, <CODE>in</CODE>,
-<CODE>pt</CODE>, and <CODE>bp</CODE>.
-
-<DT><CODE>\end{texdraw}</CODE>
-<DD>
-End a TeXdraw drawing started with a <CODE>\begin{texdraw}</CODE>
-command.  The resulting TeXdraw drawing is placed in a box with
-height equal to the height of the drawing and width equal to the width
-of the drawing.  The depth of the box is zero.  This command is for use
-with LaTeX.
-
-<DT><CODE>\esegment</CODE>
-<DD>
-End a drawing segment.  The current position in effect before the
-corresponding <CODE>\bsegment</CODE> command is restored.  The scaling and
-line parameter values revert to those in effect before the corresponding
-<CODE>\bsegment</CODE> was invoked.
-
-<DT><CODE>\etexdraw</CODE>
-<DD>
-End a TeXdraw drawing started with a <CODE>\btexdraw</CODE> command.  The
-resulting TeXdraw drawing is placed in a box with height equal to the
-height of the drawing and width equal to the width of the drawing.  The
-depth of the box is zero.
-
-<DT><CODE>\everytexdraw { ... }</CODE>
-<DD>
-Specify TeXdraw commands to be executed at the beginning of every
-TeXdraw drawing.
-
-<DT><CODE>\fcir f:<VAR>level</VAR> r:<VAR>radius</VAR></CODE>
-<DD>
-Draw a filled circle with center at the current position.  The radius is
-specified by <VAR>radius</VAR>.  The circle is painted with the gray level
-specified by <VAR>level</VAR>.  A gray level of 1 corresponds to white, with
-decreasing values getting darker.  The level 0 is full black.  This
-command does not draw a line along the circumference.  The drawing size
-is increased if necessary to contain the circle.
-
-<DT><CODE>\fellip f:<VAR>level</VAR> rx:<VAR>x-radius</VAR> ry:<VAR>y-radius</VAR></CODE>
-<DD>
-Draw a filled ellipse with center at the current position.  The radius
-in the <VAR>x</VAR> direction is specified by <VAR>x-radius</VAR>.  The radius in
-the <VAR>y</VAR> direction is specified by <VAR>y-radius</VAR>.  The ellipse is
-painted with the gray level specified by <VAR>level</VAR>.  A gray level of 1
-corresponds to white, with decreasing values getting darker.  The level
-0 is full black.  This command does not draw a line along the boundary
-of the ellipse.  The drawing size is increased if necessary to contain
-the ellipse.
-
-<DT><CODE>\htext (<VAR>x</VAR> <VAR>y</VAR>){<VAR>text</VAR>}</CODE>
-<DD>
-<DT><CODE>\htext {<VAR>text</VAR>}</CODE>
-<DD>
-The first form of this command places the TeX text <VAR>text</VAR>
-horizontally with the text reference point at the coordinate
-<CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>.  The new current position is <CODE>(<VAR>x</VAR>
-<VAR>y</VAR>)</CODE>.  The second form of this command places the TeX text
-<VAR>text</VAR> horizontally with the text reference point at the current
-position.  The text reference point is set with the <CODE>\textref</CODE>
-command.
-
-<DT><CODE>\ifill f:<VAR>level</VAR></CODE>
-<DD>
-Close the current path and paint the interior of the region with gray
-level <VAR>level</VAR>.  The line around the path is not drawn.  Gray levels
-are real values from 0 (black) through intermediate values (grays) to 1
-(white).
-
-<DT><CODE>\larc r:<VAR>radius</VAR> sd:<VAR>start-angle</VAR> ed:<VAR>end-angle</VAR></CODE>
-<DD>
-Draw a counterclockwise arc.  The center of the arc is at the current
-position.  The radius is specified by <VAR>radius</VAR>.  The start and end
-angles (in degrees) are specified by <VAR>start-angle</VAR> and
-<VAR>end-angle</VAR>.  This command does not affect the limits (size) of the
-drawing.
-
-<DT><CODE>\lcir r:<VAR>radius</VAR></CODE>
-<DD>
-Draw a circle with center at the current position.  The radius is
-specified by <VAR>radius</VAR>.  This command draws a line along the
-circumference of the circle.  The drawing size is increased if necessary
-to contain the circle.
-
-<DT><CODE>\lellip rx:<VAR>x-radius</VAR> ry:<VAR>y-radius</VAR></CODE>
-<DD>
-Draw an ellipse with center at the current position.  The radius in the
-<VAR>x</VAR> direction is specified by <VAR>x-radius</VAR>.  The radius in the
-<VAR>y</VAR> direction is specified by <VAR>y-radius</VAR>.  The drawing size is
-increased if necessary to contain the ellipse.
-
-<DT><CODE>\lfill f:<VAR>level</VAR></CODE>
-<DD>
-Close the current path, draw the line around the path using the current
-grey level for lines and paint the interior of the region with specified
-gray level <VAR>level</VAR>.  Gray levels are real values from 0 (black)
-through intermediate values (grays) to 1 (white).
-
-<DT><CODE>\linewd <VAR>width</VAR></CODE>
-<DD>
-Set the line width to <VAR>width</VAR> units.  Initially <VAR>width</VAR> is 0.01
-inches (corresponding to 3 pixels at 300 pixels to the inch).
-
-<DT><CODE>\lpatt (<VAR>pattern</VAR>)</CODE>
-<DD>
-Set lines to have the pattern <CODE>(<VAR>pattern</VAR>)</CODE>.  A pattern is a
-sequence of on/off lengths separated by blanks and enclosed in parentheses.
-The lengths alternately specify the length of a dash and the length of a
-gap between dashes.  Each length is interpreted using the current
-scaling and drawing units.  The pattern is used cyclically.  The empty
-pattern signifies a solid line.  The initial line pattern is a solid
-line, corresponding to the empty pattern <CODE>\lpatt ()</CODE>.
-
-<DT><CODE>\lvec (<VAR>x</VAR> <VAR>y</VAR>)</CODE>
-<DD>
-Draw a line from the current position to coordinate <CODE>(<VAR>x</VAR>
-<VAR>y</VAR>)</CODE>.  The new current position is <CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>.
-
-<DT><CODE>\move (<VAR>x</VAR> <VAR>y</VAR>)</CODE>
-<DD>
-Move to coordinate <CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>.  The new current position
-is <CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>.
-
-<DT><CODE>\ravec (<VAR>dx</VAR> <VAR>dy</VAR>)</CODE>
-<DD>
-Draw a line with an arrowhead from the current position, <VAR>dx</VAR> units
-in the <VAR>x</VAR> direction and <VAR>y</VAR> units in the <VAR>y</VAR> direction.
-The final position becomes the new current position.  The arrowhead is
-aligned with the line, with the tip at the new current position.
-
-<DT><CODE>\relsegscale <VAR>value</VAR></CODE>
-<DD>
-Adjust the segment scale factor by multiplying by <VAR>value</VAR>.  This has
-the effect of multiplying the current overall scale factor by the same
-factor.  The overall scaling factor is the product of the unit scale
-factor and the segment scale factor.
-
-<DT><CODE>\relunitscale <VAR>value</VAR></CODE>
-<DD>
-Adjust the unit scale factor by multiplying by <VAR>value</VAR>.  This has
-the effect of multiplying the overall scale factor by the same factor.
-The overall scaling factor is the product of the unit scale factor and
-the segment scale factor.
-
-<DT><CODE>\rlvec (<VAR>dx</VAR> <VAR>dy</VAR>)</CODE>
-<DD>
-Draw a line from the current position, <VAR>dx</VAR> units in the <VAR>x</VAR>
-direction and <VAR>dy</VAR> units in the <VAR>y</VAR> direction.  The final
-position becomes the new current position.
-
-<DT><CODE>\rmove (<VAR>dx</VAR> <VAR>dy</VAR>)</CODE>
-<DD>
-Move from the current position, <VAR>dx</VAR> units in the <VAR>x</VAR> direction
-and <VAR>dy</VAR> units in the <VAR>y</VAR> direction.  The final position becomes
-the new current position.
-
-<DT><CODE>\rtext td:<VAR>angle</VAR> (x y){<VAR>text</VAR>}</CODE>
-<DD>
-<DT><CODE>\rtext td:<VAR>angle</VAR> {<VAR>text</VAR>}</CODE>
-<DD>
-The first form of this command places the TeX text <VAR>text</VAR> at an
-angle with the text reference point at the coordinate <CODE>(<VAR>x</VAR>
-<VAR>y</VAR>)</CODE>.  The new current position is <CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>.  The
-second form of this command places the TeX text <VAR>text</VAR> at an
-angle with the text reference point at the current position.  In both
-cases, the TeX text is placed in a box and the box is rotated
-counterclockwise by <VAR>angle</VAR> degrees about the text reference point.
-The text reference point is set with the <CODE>\textref</CODE> command.
-
-<DT><CODE>\savecurrpos (*<VAR>px</VAR> *<VAR>py</VAR>)</CODE>
-<DD>
-Save the current position as the absolute position referenced by
-<CODE>(*<VAR>px</VAR> *<VAR>py</VAR>)</CODE>.
-
-<DT><CODE>\savepos (<VAR>x</VAR> <VAR>y</VAR>)(*<VAR>px</VAR> *<VAR>py</VAR>)</CODE>
-<DD>
-Save the coordinate position <CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE> as the absolute
-position referenced by <CODE>(*<VAR>px</VAR> *<VAR>py</VAR>)</CODE>.  The coordinate
-<CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE> is interpreted in the normal fashion as a
-coordinate relative to the current segment, using the current scaling
-factors and drawing unit.
-
-<DT><CODE>\setgray <VAR>level</VAR></CODE>
-<DD>
-Set the gray level of lines.  Gray levels are real values from 0 (black)
-through intermediate values (gray) to 1 (white).  The initial gray level
-is 0 corresponding to black.
-
-<DT><CODE>\setsegscale <VAR>scale</VAR></CODE>
-<DD>
-Set the segment scale factor.  The argument <VAR>scale</VAR> is a real number
-which is used to scale coordinate values.  The overall scale factor is
-the product of the unit scale factor and the segment scale factor.
-
-<DT><CODE>\setunitscale <VAR>scale</VAR></CODE>
-<DD>
-Set the unit scaling to <VAR>scale</VAR>.  The argument <VAR>scale</VAR> is a real
-number which is used to scale coordinate values.  The overall scaling
-factor is the product of the unit scale factor and the segment scale
-factor.
-
-<DT><CODE>\texdrawbox { ... }</CODE>
-<DD>
-Create a TeXdraw box.  The argument contains TeXdraw commands.
-This macro returns a TeX box with height equal to the height of the
-drawing and width equal to the width of the drawing.  The depth of the
-box is zero.
-
-<DT><CODE>\textref h:<VAR>h-ref</VAR> v:<VAR>v-ref</VAR></CODE>
-<DD>
-Set the text reference point for subsequent text commands.  The
-horizontal reference point <VAR>h-ref</VAR> is one of <CODE>L</CODE>, <CODE>C</CODE> or
-<CODE>R</CODE> (left, center or right).  The vertical reference point
-<VAR>v-ref</VAR> is one of <CODE>T</CODE>, <CODE>C</CODE> or <CODE>B</CODE> (top, center or
-bottom).  For rotated text, the reference point is determined before
-rotation.  The initial text reference point corresponds to
-<CODE>\textref h:L v:B</CODE>.
-
-<DT><CODE>\vtext (x y){<VAR>text</VAR>}</CODE>
-<DD>
-<DT><CODE>\vtext {<VAR>text</VAR>}</CODE>
-<DD>
-The first form of this command places the TeX text <VAR>text</VAR>
-vertically with the text reference point at the coordinate
-<CODE>(<VAR>x</VAR> <VAR>y</VAR>)</CODE>.  The new current position is <CODE>(<VAR>x</VAR>
-<VAR>y</VAR>)</CODE>.  The second form of this command places the TeX text
-<VAR>text</VAR> vertically with the text reference point at the current
-position.  In both cases, the TeX text is placed in a box and the box
-is rotated counterclockwise by 90 degrees about the text reference
-point.  The text reference point is set with the <CODE>\textref</CODE>
-command.
-
-</DL>
-
-<P><HR><P>
-Go to the <A HREF="texdraw_1.html">first</A>, <A HREF="texdraw_8.html">previous</A>, <A HREF="texdraw_10.html">next</A>, <A HREF="texdraw_11.html">last</A> section, <A HREF="texdraw_toc.html">table of contents</A>.
-</BODY>
-</HTML>
diff --git a/Master/texmf-dist/doc/support/texdraw/texdraw_foot.html b/Master/texmf-dist/doc/support/texdraw/texdraw_foot.html
deleted file mode 100644
index b45e6c36d32..00000000000
--- a/Master/texmf-dist/doc/support/texdraw/texdraw_foot.html
+++ /dev/null
@@ -1,25 +0,0 @@
-<HTML>
-<HEAD>
-<!-- Created by texi2html 1.56k from texdraw.texi on 10 March 2004 -->
-
-<TITLE>TeXdraw - Footnotes</TITLE>
-</HEAD>
-<BODY>
-<H1>TeXdraw</H1>
-<H2>PostScript Drawings from TeX</H2>
-<H2>Edition 2.0</H2>
-<H2>December 1995</H2>
-<ADDRESS>Peter Kabal</ADDRESS>
-<P>
-<P><HR><P>
-<H3><A NAME="FOOT1" HREF="texdraw_2.html#DOCF1">(1)</A></H3>
-<P>After the ninth PostScript file, the name of the
-intermediate PostScript file takes the form <TT>`<VAR>name</VAR>.p10'</TT>, with
-the number increasing from 10 with each file.
-<H3><A NAME="FOOT2" HREF="texdraw_5.html#DOCF2">(2)</A></H3>
-<P>Not all PostScript drivers support text rotation.
-<P><HR><P>
-This document was generated on 10 March 2004 using
-<A HREF="http://wwwinfo.cern.ch/dis/texi2html/">texi2html</A>&nbsp;1.56k.
-</BODY>
-</HTML>
diff --git a/Master/texmf-dist/doc/support/texdraw/texdraw_toc.html b/Master/texmf-dist/doc/support/texdraw/texdraw_toc.html
deleted file mode 100644
index fdf24359723..00000000000
--- a/Master/texmf-dist/doc/support/texdraw/texdraw_toc.html
+++ /dev/null
@@ -1,78 +0,0 @@
-<HTML>
-<HEAD>
-<!-- Created by texi2html 1.56k from texdraw.texi on 10 March 2004 -->
-
-<TITLE>TeXdraw - Table of Contents</TITLE>
-</HEAD>
-<BODY>
-<H1>TeXdraw</H1>
-<H2>PostScript Drawings from TeX</H2>
-<H2>Edition 2.0</H2>
-<H2>December 1995</H2>
-<ADDRESS>Peter Kabal</ADDRESS>
-<P>
-<P><HR><P>
-<UL>
-<LI><A NAME="TOC1" HREF="texdraw_1.html#SEC1">1. Introduction</A>
-<UL>
-<LI><A NAME="TOC2" HREF="texdraw_1.html#SEC2">1.1 Distribution information</A>
-</UL>
-<LI><A NAME="TOC3" HREF="texdraw_2.html#SEC3">2. Using the TeXdraw Commands</A>
-<UL>
-<LI><A NAME="TOC4" HREF="texdraw_2.html#SEC4">2.1 Accessing TeXdraw</A>
-<LI><A NAME="TOC5" HREF="texdraw_2.html#SEC5">2.2 Command syntax</A>
-<LI><A NAME="TOC6" HREF="texdraw_2.html#SEC6">2.3 TeXdraw coordinates</A>
-<LI><A NAME="TOC7" HREF="texdraw_2.html#SEC7">2.4 Coordinate specification</A>
-<LI><A NAME="TOC8" HREF="texdraw_2.html#SEC8">2.5 Line vectors</A>
-<LI><A NAME="TOC9" HREF="texdraw_2.html#SEC9">2.6 TeX text</A>
-<LI><A NAME="TOC10" HREF="texdraw_2.html#SEC10">2.7 Circles, ellipses and arcs</A>
-<LI><A NAME="TOC11" HREF="texdraw_2.html#SEC11">2.8 Bezier curves</A>
-<LI><A NAME="TOC12" HREF="texdraw_2.html#SEC12">2.9 Fill commands</A>
-</UL>
-<LI><A NAME="TOC13" HREF="texdraw_3.html#SEC13">3. Drawing Segments and Scaling</A>
-<UL>
-<LI><A NAME="TOC14" HREF="texdraw_3.html#SEC14">3.1 Drawing segments</A>
-<LI><A NAME="TOC15" HREF="texdraw_3.html#SEC15">3.2 Drawing paths</A>
-<LI><A NAME="TOC16" HREF="texdraw_3.html#SEC16">3.3 Saving positions</A>
-<LI><A NAME="TOC17" HREF="texdraw_3.html#SEC17">3.4 Scaling coordinates</A>
-<LI><A NAME="TOC18" HREF="texdraw_3.html#SEC18">3.5 Drawing size</A>
-<LI><A NAME="TOC19" HREF="texdraw_3.html#SEC19">3.6 Initial current position</A>
-</UL>
-<LI><A NAME="TOC20" HREF="texdraw_4.html#SEC20">4. Using TeXdraw with LaTeX</A>
-<UL>
-<LI><A NAME="TOC21" HREF="texdraw_4.html#SEC21">4.1 PostScript printer drivers</A>
-</UL>
-<LI><A NAME="TOC22" HREF="texdraw_5.html#SEC22">5. More Details</A>
-<UL>
-<LI><A NAME="TOC23" HREF="texdraw_5.html#SEC23">5.1 Errors while using TeXdraw</A>
-<LI><A NAME="TOC24" HREF="texdraw_5.html#SEC24">5.2 Extending TeXdraw</A>
-<UL>
-<LI><A NAME="TOC25" HREF="texdraw_5.html#SEC25">5.2.1 Scaling</A>
-<LI><A NAME="TOC26" HREF="texdraw_5.html#SEC26">5.2.2 Resolution</A>
-<LI><A NAME="TOC27" HREF="texdraw_5.html#SEC27">5.2.3 Text placement</A>
-<LI><A NAME="TOC28" HREF="texdraw_5.html#SEC28">5.2.4 The intermediate PostScript file</A>
-</UL>
-<LI><A NAME="TOC29" HREF="texdraw_5.html#SEC29">5.3 How TeXdraw merges graphics and text</A>
-</UL>
-<LI><A NAME="TOC30" HREF="texdraw_6.html#SEC30">A. PostScript Commands</A>
-<LI><A NAME="TOC31" HREF="texdraw_7.html#SEC31">B. TeXdraw Toolbox</A>
-<UL>
-<LI><A NAME="TOC32" HREF="texdraw_7.html#SEC32">B.1 Coordinate parsing</A>
-<LI><A NAME="TOC33" HREF="texdraw_7.html#SEC33">B.2 Real arithmetic</A>
-<LI><A NAME="TOC34" HREF="texdraw_7.html#SEC34">B.3 Arrow curve</A>
-</UL>
-<LI><A NAME="TOC35" HREF="texdraw_8.html#SEC35">C. Examples</A>
-<UL>
-<LI><A NAME="TOC36" HREF="texdraw_8.html#SEC36">C.1 Block diagram of a lattice filter</A>
-<LI><A NAME="TOC37" HREF="texdraw_8.html#SEC37">C.2 Filter response graph</A>
-<LI><A NAME="TOC38" HREF="texdraw_8.html#SEC38">C.3 Geometric construction</A>
-</UL>
-<LI><A NAME="TOC39" HREF="texdraw_9.html#SEC39">D. Alphabetic listing of commands</A>
-<LI><A NAME="TOC40" HREF="texdraw_10.html#SEC40">Command Index</A>
-<LI><A NAME="TOC41" HREF="texdraw_11.html#SEC41">Concept Index</A>
-</UL>
-<P><HR><P>
-This document was generated on 10 March 2004 using
-<A HREF="http://wwwinfo.cern.ch/dis/texi2html/">texi2html</A>&nbsp;1.56k.
-</BODY>
-</HTML>
diff --git a/Master/texmf-dist/doc/support/texdraw/texi2dvi b/Master/texmf-dist/doc/support/texdraw/texi2dvi
deleted file mode 100644
index 45e92ff8e7f..00000000000
--- a/Master/texmf-dist/doc/support/texdraw/texi2dvi
+++ /dev/null
@@ -1,275 +0,0 @@
-#! /bin/sh
-# texi2dvi --- smartly produce DVI files from texinfo sources
-
-# Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
-
-# $Id: texi2dvi,v 1.7 1995/11/03 texdraw-V2R0 $
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, you can either send email to this
-# program's maintainer or write to: The Free Software Foundation,
-# Inc.; 59 Temple Place, Suite 330; Boston, MA 02111-1307, USA.
-
-# Commentary:
-
-# Author: Noah Friedman <friedman@prep.ai.mit.edu>
-
-# Please send bug reports, etc. to bug-texinfo@prep.ai.mit.edu
-# If possible, please send a copy of the output of the script called with
-# the `--debug' option when making a bug report.
-
-# In the interest of general portability, some common bourne shell
-# constructs were avoided because they weren't guaranteed to be available
-# in some earlier implementations.  I've tried to make this program as
-# portable as possible.  Welcome to unix, where the lowest common
-# denominator is rapidly diminishing.
-#
-# Among the more interesting lossages I noticed with some bourne shells
-# are:
-#     * No shell functions.
-#     * No `unset' builtin.
-#     * `shift' cannot take a numeric argument, and signals an error if
-#       there are no arguments to shift.
-
-# Code:
-
-# Name by which this script was invoked.
-progname=`echo "$0" | sed -e 's/[^\/]*\///g'`
-
-# This string is expanded by rcs automatically when this file is checked out.
-rcs_revision='$Revision: 1.7 $'
-version=`set - $rcs_revision; echo $2`
-
-# To prevent hairy quoting and escaping later.
-bq='`'
-eq="'"
-
-usage="Usage: $progname {options} [file1] {file2 {...}}
-(version $version)
-
-Options are:
--D, --debug          Turn on shell debugging ($bq${bq}set -x$eq$eq).
--h, --help           You're looking at it.
--v, --version        Print version number.
-
-Arguments in brackets are required.  Those in braces are optional.
-"
-
-# Initialize variables.
-# Don't use `unset' since old bourne shells don't have this command.
-# Instead, assign them an empty value.
-# Some of these, like TEX and TEXINDEX, may be inherited from the environment
-backup_extension=.bak
-debug=
-orig_pwd="`pwd`"
-verbose=
-texindex="${TEXINDEX-texindex}"
-tex="${TEX-tex}"
-
-# Save this so we can construct a new TEXINPUTS path for each file to be
-# processed.
-TEXINPUTS_orig="$TEXINPUTS"
-export TEXINPUTS
-
-# Parse command line arguments.
-# Make sure that all wildcarded options are long enough to be unambiguous.
-# It's a good idea to document the full long option name in each case.
-# Long options which take arguments will need a `*' appended to the
-# canonical name to match the value appended after the `=' character.
-while : ; do
-  case $# in 0) break ;; esac
-  case "$1" in
-    -D | --debug | --d* )
-      debug=t
-      shift
-     ;;
-    -h | --help | --h* )
-      echo "$usage" 1>&2
-      exit 0
-     ;;
-    -v | --version | --v* )
-      echo "texi2dvi version $version" 1>&2
-      exit 0
-     ;;
-    -- )     # Stop option processing
-      shift
-      break
-     ;;
-    -* )
-      case "$1" in
-        --*=* ) arg=`echo "$1" | sed -e 's/=.*//'` ;;
-        * )     arg="$1" ;;
-      esac
-      exec 1>&2
-      echo "$progname: unknown or ambiguous option $bq$arg$eq"
-      echo "$progname: Use $bq--help$eq for a list of options."
-      exit 1
-     ;;
-    * )
-      break
-     ;;
-   esac
-done
-
-# See if there are any command line args left (which will be interpreted as
-# filename arguments)
-case $# in
-  0 )
-    exec 1>&2
-    echo "$progname: at least one file name is required as an argument."
-    echo "$progname: Use $bq--help$eq for a description of command syntax."
-    exit 2
-   ;;
-esac
-
-case "$debug" in t ) set -x ;; esac
-
-# Texify files
-for command_line_filename in ${1+"$@"} ; do
-   # Roughly equivalent to `dirname ...`, but more portable
-   directory="`echo ${command_line_filename} | sed 's/\/[^\/]*$//'`"
-   filename_texi="`basename ${command_line_filename}`"
-   # Strip off the last extension part (probably .texinfo or .texi)
-   filename_noext="`echo ${filename_texi} | sed 's/\.[^.]*$//'`"
-
-   # If directory and file are the same, then it's probably because there's
-   # no pathname component.  Set dirname to `.', the current directory.
-   if test "z${directory}" = "z${command_line_filename}" ; then
-      directory="."
-   fi
-
-   # Source file might @include additional texinfo sources.  Put `.' and
-   # directory where source file(s) reside in TEXINPUTS before anything
-   # else.  `.' goes first to ensure that any old .aux, .cps, etc. files in
-   # ${directory} don't get used in preference to fresher files in `.'.
-   TEXINPUTS=".:${directory}:${TEXINPUTS_orig}"
-
-   # "Unset" variables that might have values from previous iterations and
-   # which won't be completely reset later.
-   definite_index_files=""
-
-   # See if file exists here.  If it doesn't we're in trouble since, even
-   # though the user may be able to reenter a valid filename at the tex
-   # prompt (assuming they're attending the terminal), this script won't be
-   # able to find the right index files and so forth.
-   if test ! -r "${command_line_filename}" ; then
-      echo "${progname}: ${command_line_filename}: No such file or permission denied." 1>&2
-      continue;
-   fi
-
-   # Find all files having root filename with a two-letter extension,
-   # determine whether they're really index files, and save them.  Foo.aux
-   # is actually the cross-references file, but we need to keep track of
-   # that too.
-   possible_index_files="`eval echo ${filename_noext}.?? ${filename_noext}.aux`"
-   for this_file in ${possible_index_files} ; do
-      # If file is empty, forget it.
-      if test ! -s "${this_file}" ; then
-         continue;
-      fi
-
-      # Examine first character of file.  If it's not a backslash or
-      # single quote, then it's definitely not an index or xref file.
-      first_character="`sed -n '1s/^\(.\).*$/\1/p;q' ${this_file}`"
-      if test "${first_character}" = "\\" -o "${first_character}" = "'" ; then
-         definite_index_files="${definite_index_files} ${this_file}"
-      fi
-   done
-   orig_index_files="${definite_index_files}"
-   orig_index_files_sans_aux="`echo ${definite_index_files} \
-                                | sed 's/'${filename_noext}'\.aux//;
-                                       s/^[ ]*//;s/[ ]*$//;'`"
-
-   # Now save copies of original index files so we have some means of
-   # comparison later.
-   for index_file_to_save in ${orig_index_files} ; do
-       cp "${index_file_to_save}" "${index_file_to_save}${backup_extension}"
-   done
-
-   # Run texindex on current index files.  If they already exist, and
-   # after running TeX a first time the index files don't change, then
-   # there's no reason to run TeX again.  But we won't know that if the
-   # index files are out of date or nonexistent.
-   if test "${orig_index_files_sans_aux}" ; then
-      ${texindex} ${orig_index_files_sans_aux}
-   fi
-
-   if ${tex} ${command_line_filename} ; then		# TeX run first time
-      definite_index_files=""
-      # Get list of new index files
-      possible_index_files="`eval echo ${filename_noext}.?? ${filename_noext}.aux`"
-      for this_file in ${possible_index_files} ; do
-         # If file is empty, forget it.
-         if test ! -s ${this_file} ; then
-            continue;
-         fi
-
-         # Examine first character of file.  If it's not a backslash or
-         # single quote, then it's definitely not an index or xref file.
-         first_character="`sed -n '1s/^\(.\).*$/\1/p;q' ${this_file}`"
-         if test "${first_character}" = "\\" -o "${first_character}" = "'" ; then
-            definite_index_files="${definite_index_files} ${this_file}"
-         fi
-      done
-      new_index_files="${definite_index_files}"
-      new_index_files_sans_aux="`echo ${definite_index_files} \
-                                  | sed 's/'${filename_noext}'\.aux//;
-                                         s/^[ ]*//;s/[ ]*$//;'`"
-
-      # If old and new list don't at least have the same file list, then one
-      # file or another has definitely changed.
-      if test "${orig_index_files}" != "${new_index_files}" ; then
-         index_files_changed_p=t
-      else
-         # File list is the same.  We must compare each file until we find a
-         # difference.
-         index_files_changed_p=""
-         for this_file in ${new_index_files} ; do
-            # cmp -s will return nonzero exit status if files differ.
-            cmp -s "${this_file}" "${this_file}${backup_extension}"
-            if test $? -ne 0  ; then
-               # We only need to keep comparing until we find *one* that
-               # differs, because we'll have to run texindex & tex no
-               # matter what.
-               index_files_changed_p=t
-               break
-            fi
-         done
-      fi
-
-      # If index files have changed since TeX has been run, or if the aux
-      # file wasn't present originally, run texindex and TeX again.
-      if test "${index_files_changed_p}"  ; then
-         retval=0
-         if test "${new_index_files_sans_aux}" ; then
-            ${texindex} ${new_index_files_sans_aux}
-            retval=$?
-         fi
-         if test ${retval} -eq 0 ; then
-            ${tex} "${command_line_filename}"
-         fi
-      fi
-   fi
-
-   # Generate list of files to delete, then call rm once with the entire
-   # list.  This is significantly faster than multiple executions of rm.
-   file_list=""
-   for file in ${orig_index_files} ; do
-       file_list="${file_list} ${file}${backup_extension}"
-   done
-   if test "${file_list}" ; then
-      rm -f ${file_list}
-   fi
-done
-
-# texi2dvi ends here
diff --git a/Master/texmf-dist/doc/support/texdraw/texindex.c b/Master/texmf-dist/doc/support/texdraw/texindex.c
deleted file mode 100644
index a88d5169691..00000000000
--- a/Master/texmf-dist/doc/support/texdraw/texindex.c
+++ /dev/null
@@ -1,1700 +0,0 @@
-/* Prepare TeX index dribble output into an actual index.
-
-   Version 1.45
-
-   Copyright (C) 1987, 1991, 1992 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-
-#include <stdio.h>
-#include <ctype.h>
-#include <errno.h>
-#include "getopt.h"
-
-#if defined (STDC_HEADERS)
-#  include <string.h>
-#  include <stdlib.h>
-#  if !defined (bzero)
-#    define bzero(p, n) memset((p), '\0', (n))
-#  endif /* !bzero */
-#else /* !STDC_HEADERS */
-extern int errno;
-char *getenv (), *malloc (), *realloc ();
-void bzero ();
-#endif /* !STDC_HEADERS */
-
-#if defined (HAVE_UNISTD_H)
-#  include <unistd.h>
-#else /* !HAVE_UNISTD_H */
-long lseek ();
-#endif /* !HAVE_UNISTD_H */
-
-char *mktemp ();
-
-#if defined (VMS)
-#  if !defined (VAX11C)
-#    define noshare
-#  endif /* !VAX11C */
-#  include <perror.h>
-extern noshare int sys_nerr;
-extern noshare char *sys_errlist[];
-
-#  include <file.h>
-
-#  define TI_NO_ERROR ((1 << 28) | 1)
-#  define TI_FATAL_ERROR ((1 << 28) | 4)
-#  define unlink delete
-
-#else /* !VMS */
-
-extern int sys_nerr;
-extern char *sys_errlist[];
-
-#  if defined (HAVE_SYS_FCNTL_H)
-#    include <sys/types.h>
-#    include <sys/fcntl.h>
-#  endif /* HAVE_SYS_FCNTL_H */
-
-#  if defined (_AIX) || !defined (_POSIX_VERSION)
-#    include <sys/file.h>
-#  else /* !AIX && _POSIX_VERSION */
-#    if !defined (HAVE_SYS_FCNTL_H)
-#      include <fcntl.h>
-#    endif /* !HAVE_FCNTL_H */
-#  endif /* !_AIX && _POSIX_VERSION */
-#  define TI_NO_ERROR 0
-#  define TI_FATAL_ERROR 1
-#endif /* !VMS */
-
-#if !defined (SEEK_SET)
-#  define SEEK_SET 0
-#  define SEEK_CUR 1
-#  define SEEK_END 2
-#endif /* !SEEK_SET */
-
-/* When sorting in core, this structure describes one line
-   and the position and length of its first keyfield.  */
-struct lineinfo
-{
-  char *text;		/* The actual text of the line. */
-  union {
-    char *text;		/* The start of the key (for textual comparison). */
-    long number;	/* The numeric value (for numeric comparison). */
-  } key;
-  long keylen;		/* Length of KEY field. */
-};
-
-/* This structure describes a field to use as a sort key. */
-struct keyfield
-{
-  int startwords;	/* Number of words to skip. */
-  int startchars;	/* Number of additional chars to skip. */
-  int endwords;		/* Number of words to ignore at end. */
-  int endchars;		/* Ditto for characters of last word. */
-  char ignore_blanks;	/* Non-zero means ignore spaces and tabs. */
-  char fold_case;	/* Non-zero means case doesn't matter. */
-  char reverse;		/* Non-zero means compare in reverse order. */
-  char numeric;		/* Non-zeros means field is ASCII numeric. */
-  char positional;	/* Sort according to file position. */
-  char braced;		/* Count balanced-braced groupings as fields. */
-};
-
-/* Vector of keyfields to use. */
-struct keyfield keyfields[3];
-
-/* Number of keyfields stored in that vector.  */
-int num_keyfields = 3;
-
-/* Vector of input file names, terminated with a null pointer. */
-char **infiles;
-
-/* Vector of corresponding output file names, or NULL, meaning default it
-   (add an `s' to the end). */
-char **outfiles;
-
-/* Length of `infiles'. */
-int num_infiles;
-
-/* Pointer to the array of pointers to lines being sorted. */
-char **linearray;
-
-/* The allocated length of `linearray'. */
-long nlines;
-
-/* Directory to use for temporary files.  On Unix, it ends with a slash.  */
-char *tempdir;
-
-/* Start of filename to use for temporary files.  */
-char *tempbase;
-
-/* Number of last temporary file.  */
-int tempcount;
-
-/* Number of last temporary file already deleted.
-   Temporary files are deleted by `flush_tempfiles' in order of creation.  */
-int last_deleted_tempcount;
-
-/* During in-core sort, this points to the base of the data block
-   which contains all the lines of data.  */
-char *text_base;
-
-/* Additional command switches .*/
-
-/* Nonzero means do not delete tempfiles -- for debugging. */
-int keep_tempfiles;
-
-/* The name this program was run with. */
-char *program_name;
-
-/* Forward declarations of functions in this file. */
-
-void decode_command ();
-void sort_in_core ();
-void sort_offline ();
-char **parsefile ();
-char *find_field ();
-char *find_pos ();
-long find_value ();
-char *find_braced_pos ();
-char *find_braced_end ();
-void writelines ();
-int compare_field ();
-int compare_full ();
-long readline ();
-int merge_files ();
-int merge_direct ();
-void pfatal_with_name ();
-void fatal ();
-void error ();
-void *xmalloc (), *xrealloc ();
-char *concat ();
-char *maketempname ();
-void flush_tempfiles ();
-char *tempcopy ();
-
-#define MAX_IN_CORE_SORT 500000
-
-void
-main (argc, argv)
-     int argc;
-     char **argv;
-{
-  int i;
-
-  tempcount = 0;
-  last_deleted_tempcount = 0;
-  program_name = argv[0];
-
-  /* Describe the kind of sorting to do. */
-  /* The first keyfield uses the first braced field and folds case. */
-  keyfields[0].braced = 1;
-  keyfields[0].fold_case = 1;
-  keyfields[0].endwords = -1;
-  keyfields[0].endchars = -1;
-
-  /* The second keyfield uses the second braced field, numerically. */
-  keyfields[1].braced = 1;
-  keyfields[1].numeric = 1;
-  keyfields[1].startwords = 1;
-  keyfields[1].endwords = -1;
-  keyfields[1].endchars = -1;
-
-  /* The third keyfield (which is ignored while discarding duplicates)
-     compares the whole line. */
-  keyfields[2].endwords = -1;
-  keyfields[2].endchars = -1;
-
-  decode_command (argc, argv);
-
-  tempbase = mktemp (concat ("txiXXXXXX", "", ""));
-
-  /* Process input files completely, one by one.  */
-
-  for (i = 0; i < num_infiles; i++)
-    {
-      int desc;
-      long ptr;
-      char *outfile;
-
-      desc = open (infiles[i], O_RDONLY, 0);
-      if (desc < 0)
-	pfatal_with_name (infiles[i]);
-      lseek (desc, 0L, SEEK_END);
-      ptr = lseek (desc, 0L, SEEK_CUR);
-
-      close (desc);
-
-      outfile = outfiles[i];
-      if (!outfile)
-	{
-	  outfile = concat (infiles[i], "s", "");
-	}
-
-      if (ptr < MAX_IN_CORE_SORT)
-	/* Sort a small amount of data. */
-	sort_in_core (infiles[i], ptr, outfile);
-      else
-	sort_offline (infiles[i], ptr, outfile);
-    }
-
-  flush_tempfiles (tempcount);
-  exit (TI_NO_ERROR);
-}
-
-void
-usage ()
-{
-  fprintf (stderr, "\
-Usage: %s [-k] infile [-o outfile] ...\n", program_name);
-  exit (1);
-}
-
-/* Decode the command line arguments to set the parameter variables
-   and set up the vector of keyfields and the vector of input files. */
-
-void
-decode_command (argc, argv)
-     int argc;
-     char **argv;
-{
-  int optc;
-  char **ip;
-  char **op;
-
-  /* Store default values into parameter variables. */
-
-  tempdir = getenv ("TMPDIR");
-#ifdef VMS
-  if (tempdir == NULL)
-    tempdir = "sys$scratch:";
-#else
-  if (tempdir == NULL)
-    tempdir = "/tmp/";
-  else
-    tempdir = concat (tempdir, "/", "");
-#endif
-
-  keep_tempfiles = 0;
-
-  /* Allocate ARGC input files, which must be enough.  */
-
-  infiles = (char **) xmalloc (argc * sizeof (char *));
-  outfiles = (char **) xmalloc (argc * sizeof (char *));
-  ip = infiles;
-  op = outfiles;
-
-  while ((optc = getopt (argc, argv, "-ko:")) != EOF)
-    {
-      switch (optc)
-	{
-	case 1:		/* Non-option filename. */
-	  *ip++ = optarg;
-	  *op++ = NULL;
-	  break;
-
-	case 'k':
-	  keep_tempfiles = 1;
-	  break;
-
-	case 'o':
-	  if (op > outfiles)
-	    *(op - 1) = optarg;
-	  break;
-
-	default:
-	  usage ();
-	}
-    }
-
-  /* Record number of keyfields and terminate list of filenames. */
-  num_infiles = ip - infiles;
-  *ip = 0;
-  if (num_infiles == 0)
-    usage ();
-}
-
-/* Return a name for a temporary file. */
-
-char *
-maketempname (count)
-     int count;
-{
-  char tempsuffix[10];
-  sprintf (tempsuffix, "%d", count);
-  return concat (tempdir, tempbase, tempsuffix);
-}
-
-/* Delete all temporary files up to TO_COUNT. */
-
-void
-flush_tempfiles (to_count)
-     int to_count;
-{
-  if (keep_tempfiles)
-    return;
-  while (last_deleted_tempcount < to_count)
-    unlink (maketempname (++last_deleted_tempcount));
-}
-
-/* Copy the input file open on IDESC into a temporary file
-   and return the temporary file name. */
-
-#define BUFSIZE 1024
-
-char *
-tempcopy (idesc)
-     int idesc;
-{
-  char *outfile = maketempname (++tempcount);
-  int odesc;
-  char buffer[BUFSIZE];
-
-  odesc = open (outfile, O_WRONLY | O_CREAT, 0666);
-
-  if (odesc < 0)
-    pfatal_with_name (outfile);
-
-  while (1)
-    {
-      int nread = read (idesc, buffer, BUFSIZE);
-      write (odesc, buffer, nread);
-      if (!nread)
-	break;
-    }
-
-  close (odesc);
-
-  return outfile;
-}
-
-/* Compare LINE1 and LINE2 according to the specified set of keyfields. */
-
-int
-compare_full (line1, line2)
-     char **line1, **line2;
-{
-  int i;
-
-  /* Compare using the first keyfield;
-     if that does not distinguish the lines, try the second keyfield;
-     and so on. */
-
-  for (i = 0; i < num_keyfields; i++)
-    {
-      long length1, length2;
-      char *start1 = find_field (&keyfields[i], *line1, &length1);
-      char *start2 = find_field (&keyfields[i], *line2, &length2);
-      int tem = compare_field (&keyfields[i], start1, length1, *line1 - text_base,
-			       start2, length2, *line2 - text_base);
-      if (tem)
-	{
-	  if (keyfields[i].reverse)
-	    return -tem;
-	  return tem;
-	}
-    }
-
-  return 0;			/* Lines match exactly. */
-}
-
-/* Compare LINE1 and LINE2, described by structures
-   in which the first keyfield is identified in advance.
-   For positional sorting, assumes that the order of the lines in core
-   reflects their nominal order.  */
-
-int
-compare_prepared (line1, line2)
-     struct lineinfo *line1, *line2;
-{
-  int i;
-  int tem;
-  char *text1, *text2;
-
-  /* Compare using the first keyfield, which has been found for us already. */
-  if (keyfields->positional)
-    {
-      if (line1->text - text_base > line2->text - text_base)
-	tem = 1;
-      else
-	tem = -1;
-    }
-  else if (keyfields->numeric)
-    tem = line1->key.number - line2->key.number;
-  else
-    tem = compare_field (keyfields, line1->key.text, line1->keylen, 0,
-			 line2->key.text, line2->keylen, 0);
-  if (tem)
-    {
-      if (keyfields->reverse)
-	return -tem;
-      return tem;
-    }
-
-  text1 = line1->text;
-  text2 = line2->text;
-
-  /* Compare using the second keyfield;
-     if that does not distinguish the lines, try the third keyfield;
-     and so on. */
-
-  for (i = 1; i < num_keyfields; i++)
-    {
-      long length1, length2;
-      char *start1 = find_field (&keyfields[i], text1, &length1);
-      char *start2 = find_field (&keyfields[i], text2, &length2);
-      int tem = compare_field (&keyfields[i], start1, length1, text1 - text_base,
-			       start2, length2, text2 - text_base);
-      if (tem)
-	{
-	  if (keyfields[i].reverse)
-	    return -tem;
-	  return tem;
-	}
-    }
-
-  return 0;			/* Lines match exactly. */
-}
-
-/* Like compare_full but more general.
-   You can pass any strings, and you can say how many keyfields to use.
-   POS1 and POS2 should indicate the nominal positional ordering of
-   the two lines in the input.  */
-
-int
-compare_general (str1, str2, pos1, pos2, use_keyfields)
-     char *str1, *str2;
-     long pos1, pos2;
-     int use_keyfields;
-{
-  int i;
-
-  /* Compare using the first keyfield;
-     if that does not distinguish the lines, try the second keyfield;
-     and so on. */
-
-  for (i = 0; i < use_keyfields; i++)
-    {
-      long length1, length2;
-      char *start1 = find_field (&keyfields[i], str1, &length1);
-      char *start2 = find_field (&keyfields[i], str2, &length2);
-      int tem = compare_field (&keyfields[i], start1, length1, pos1,
-			       start2, length2, pos2);
-      if (tem)
-	{
-	  if (keyfields[i].reverse)
-	    return -tem;
-	  return tem;
-	}
-    }
-
-  return 0;			/* Lines match exactly. */
-}
-
-/* Find the start and length of a field in STR according to KEYFIELD.
-   A pointer to the starting character is returned, and the length
-   is stored into the int that LENGTHPTR points to.  */
-
-char *
-find_field (keyfield, str, lengthptr)
-     struct keyfield *keyfield;
-     char *str;
-     long *lengthptr;
-{
-  char *start;
-  char *end;
-  char *(*fun) ();
-
-  if (keyfield->braced)
-    fun = find_braced_pos;
-  else
-    fun = find_pos;
-
-  start = (*fun) (str, keyfield->startwords, keyfield->startchars,
-		  keyfield->ignore_blanks);
-  if (keyfield->endwords < 0)
-    {
-      if (keyfield->braced)
-	end = find_braced_end (start);
-      else
-	{
-	  end = start;
-	  while (*end && *end != '\n')
-	    end++;
-	}
-    }
-  else
-    {
-      end = (*fun) (str, keyfield->endwords, keyfield->endchars, 0);
-      if (end - str < start - str)
-	end = start;
-    }
-  *lengthptr = end - start;
-  return start;
-}
-
-/* Return a pointer to a specified place within STR,
-   skipping (from the beginning) WORDS words and then CHARS chars.
-   If IGNORE_BLANKS is nonzero, we skip all blanks
-   after finding the specified word.  */
-
-char *
-find_pos (str, words, chars, ignore_blanks)
-     char *str;
-     int words, chars;
-     int ignore_blanks;
-{
-  int i;
-  char *p = str;
-
-  for (i = 0; i < words; i++)
-    {
-      char c;
-      /* Find next bunch of nonblanks and skip them. */
-      while ((c = *p) == ' ' || c == '\t')
-	p++;
-      while ((c = *p) && c != '\n' && !(c == ' ' || c == '\t'))
-	p++;
-      if (!*p || *p == '\n')
-	return p;
-    }
-
-  while (*p == ' ' || *p == '\t')
-    p++;
-
-  for (i = 0; i < chars; i++)
-    {
-      if (!*p || *p == '\n')
-	break;
-      p++;
-    }
-  return p;
-}
-
-/* Like find_pos but assumes that each field is surrounded by braces
-   and that braces within fields are balanced. */
-
-char *
-find_braced_pos (str, words, chars, ignore_blanks)
-     char *str;
-     int words, chars;
-     int ignore_blanks;
-{
-  int i;
-  int bracelevel;
-  char *p = str;
-  char c;
-
-  for (i = 0; i < words; i++)
-    {
-      bracelevel = 1;
-      while ((c = *p++) != '{' && c != '\n' && c)
-	/* Do nothing. */ ;
-      if (c != '{')
-	return p - 1;
-      while (bracelevel)
-	{
-	  c = *p++;
-	  if (c == '{')
-	    bracelevel++;
-	  if (c == '}')
-	    bracelevel--;
-	  if (c == 0 || c == '\n')
-	    return p - 1;
-	}
-    }
-
-  while ((c = *p++) != '{' && c != '\n' && c)
-    /* Do nothing. */ ;
-
-  if (c != '{')
-    return p - 1;
-
-  if (ignore_blanks)
-    while ((c = *p) == ' ' || c == '\t')
-      p++;
-
-  for (i = 0; i < chars; i++)
-    {
-      if (!*p || *p == '\n')
-	break;
-      p++;
-    }
-  return p;
-}
-
-/* Find the end of the balanced-brace field which starts at STR.
-   The position returned is just before the closing brace. */
-
-char *
-find_braced_end (str)
-     char *str;
-{
-  int bracelevel;
-  char *p = str;
-  char c;
-
-  bracelevel = 1;
-  while (bracelevel)
-    {
-      c = *p++;
-      if (c == '{')
-	bracelevel++;
-      if (c == '}')
-	bracelevel--;
-      if (c == 0 || c == '\n')
-	return p - 1;
-    }
-  return p - 1;
-}
-
-long
-find_value (start, length)
-     char *start;
-     long length;
-{
-  while (length != 0L)
-    {
-      if (isdigit (*start))
-	return atol (start);
-      length--;
-      start++;
-    }
-  return 0l;
-}
-
-/* Vector used to translate characters for comparison.
-   This is how we make all alphanumerics follow all else,
-   and ignore case in the first sorting.  */
-int char_order[256];
-
-void
-init_char_order ()
-{
-  int i;
-  for (i = 1; i < 256; i++)
-    char_order[i] = i;
-
-  for (i = '0'; i <= '9'; i++)
-    char_order[i] += 512;
-
-  for (i = 'a'; i <= 'z'; i++)
-    {
-      char_order[i] = 512 + i;
-      char_order[i + 'A' - 'a'] = 512 + i;
-    }
-}
-
-/* Compare two fields (each specified as a start pointer and a character count)
-   according to KEYFIELD.
-   The sign of the value reports the relation between the fields. */
-
-int
-compare_field (keyfield, start1, length1, pos1, start2, length2, pos2)
-     struct keyfield *keyfield;
-     char *start1;
-     long length1;
-     long pos1;
-     char *start2;
-     long length2;
-     long pos2;
-{
-  if (keyfields->positional)
-    {
-      if (pos1 > pos2)
-	return 1;
-      else
-	return -1;
-    }
-  if (keyfield->numeric)
-    {
-      long value = find_value (start1, length1) - find_value (start2, length2);
-      if (value > 0)
-	return 1;
-      if (value < 0)
-	return -1;
-      return 0;
-    }
-  else
-    {
-      char *p1 = start1;
-      char *p2 = start2;
-      char *e1 = start1 + length1;
-      char *e2 = start2 + length2;
-
-      while (1)
-	{
-	  int c1, c2;
-
-	  if (p1 == e1)
-	    c1 = 0;
-	  else
-	    c1 = *p1++;
-	  if (p2 == e2)
-	    c2 = 0;
-	  else
-	    c2 = *p2++;
-
-	  if (char_order[c1] != char_order[c2])
-	    return char_order[c1] - char_order[c2];
-	  if (!c1)
-	    break;
-	}
-
-      /* Strings are equal except possibly for case.  */
-      p1 = start1;
-      p2 = start2;
-      while (1)
-	{
-	  int c1, c2;
-
-	  if (p1 == e1)
-	    c1 = 0;
-	  else
-	    c1 = *p1++;
-	  if (p2 == e2)
-	    c2 = 0;
-	  else
-	    c2 = *p2++;
-
-	  if (c1 != c2)
-	    /* Reverse sign here so upper case comes out last.  */
-	    return c2 - c1;
-	  if (!c1)
-	    break;
-	}
-
-      return 0;
-    }
-}
-
-/* A `struct linebuffer' is a structure which holds a line of text.
-   `readline' reads a line from a stream into a linebuffer
-   and works regardless of the length of the line.  */
-
-struct linebuffer
-{
-  long size;
-  char *buffer;
-};
-
-/* Initialize LINEBUFFER for use. */
-
-void
-initbuffer (linebuffer)
-     struct linebuffer *linebuffer;
-{
-  linebuffer->size = 200;
-  linebuffer->buffer = (char *) xmalloc (200);
-}
-
-/* Read a line of text from STREAM into LINEBUFFER.
-   Return the length of the line.  */
-
-long
-readline (linebuffer, stream)
-     struct linebuffer *linebuffer;
-     FILE *stream;
-{
-  char *buffer = linebuffer->buffer;
-  char *p = linebuffer->buffer;
-  char *end = p + linebuffer->size;
-
-  while (1)
-    {
-      int c = getc (stream);
-      if (p == end)
-	{
-	  buffer = (char *) xrealloc (buffer, linebuffer->size *= 2);
-	  p += buffer - linebuffer->buffer;
-	  end += buffer - linebuffer->buffer;
-	  linebuffer->buffer = buffer;
-	}
-      if (c < 0 || c == '\n')
-	{
-	  *p = 0;
-	  break;
-	}
-      *p++ = c;
-    }
-
-  return p - buffer;
-}
-
-/* Sort an input file too big to sort in core.  */
-
-void
-sort_offline (infile, nfiles, total, outfile)
-     char *infile;
-     int nfiles;
-     long total;
-     char *outfile;
-{
-  /* More than enough. */
-  int ntemps = 2 * (total + MAX_IN_CORE_SORT - 1) / MAX_IN_CORE_SORT;
-  char **tempfiles = (char **) xmalloc (ntemps * sizeof (char *));
-  FILE *istream = fopen (infile, "r");
-  int i;
-  struct linebuffer lb;
-  long linelength;
-  int failure = 0;
-
-  initbuffer (&lb);
-
-  /* Read in one line of input data.  */
-
-  linelength = readline (&lb, istream);
-
-  if (lb.buffer[0] != '\\' && lb.buffer[0] != '@')
-    {
-      error ("%s: not a texinfo index file", infile);
-      return;
-    }
-
-  /* Split up the input into `ntemps' temporary files, or maybe fewer,
-     and put the new files' names into `tempfiles' */
-
-  for (i = 0; i < ntemps; i++)
-    {
-      char *outname = maketempname (++tempcount);
-      FILE *ostream = fopen (outname, "w");
-      long tempsize = 0;
-
-      if (!ostream)
-	pfatal_with_name (outname);
-      tempfiles[i] = outname;
-
-      /* Copy lines into this temp file as long as it does not make file
-	 "too big" or until there are no more lines.  */
-
-      while (tempsize + linelength + 1 <= MAX_IN_CORE_SORT)
-	{
-	  tempsize += linelength + 1;
-	  fputs (lb.buffer, ostream);
-	  putc ('\n', ostream);
-
-	  /* Read another line of input data.  */
-
-	  linelength = readline (&lb, istream);
-	  if (!linelength && feof (istream))
-	    break;
-
-	  if (lb.buffer[0] != '\\' && lb.buffer[0] != '@')
-	    {
-	      error ("%s: not a texinfo index file", infile);
-	      failure = 1;
-	      goto fail;
-	    }
-	}
-      fclose (ostream);
-      if (feof (istream))
-	break;
-    }
-
-  free (lb.buffer);
-
-fail:
-  /* Record number of temp files we actually needed.  */
-
-  ntemps = i;
-
-  /* Sort each tempfile into another tempfile.
-    Delete the first set of tempfiles and put the names of the second
-    into `tempfiles'. */
-
-  for (i = 0; i < ntemps; i++)
-    {
-      char *newtemp = maketempname (++tempcount);
-      sort_in_core (&tempfiles[i], MAX_IN_CORE_SORT, newtemp);
-      if (!keep_tempfiles)
-	unlink (tempfiles[i]);
-      tempfiles[i] = newtemp;
-    }
-
-  if (failure)
-    return;
-
-  /* Merge the tempfiles together and indexify. */
-
-  merge_files (tempfiles, ntemps, outfile);
-}
-
-/* Sort INFILE, whose size is TOTAL,
-   assuming that is small enough to be done in-core,
-   then indexify it and send the output to OUTFILE (or to stdout).  */
-
-void
-sort_in_core (infile, total, outfile)
-     char *infile;
-     long total;
-     char *outfile;
-{
-  char **nextline;
-  char *data = (char *) xmalloc (total + 1);
-  char *file_data;
-  long file_size;
-  int i;
-  FILE *ostream = stdout;
-  struct lineinfo *lineinfo;
-
-  /* Read the contents of the file into the moby array `data'. */
-
-  int desc = open (infile, O_RDONLY, 0);
-
-  if (desc < 0)
-    fatal ("failure reopening %s", infile);
-  for (file_size = 0;;)
-    {
-      i = read (desc, data + file_size, total - file_size);
-      if (i <= 0)
-	break;
-      file_size += i;
-    }
-  file_data = data;
-  data[file_size] = 0;
-
-  close (desc);
-
-  if (file_size > 0 && data[0] != '\\' && data[0] != '@')
-    {
-      error ("%s: not a texinfo index file", infile);
-      return;
-    }
-
-  init_char_order ();
-
-  /* Sort routines want to know this address. */
-
-  text_base = data;
-
-  /* Create the array of pointers to lines, with a default size
-     frequently enough.  */
-
-  nlines = total / 50;
-  if (!nlines)
-    nlines = 2;
-  linearray = (char **) xmalloc (nlines * sizeof (char *));
-
-  /* `nextline' points to the next free slot in this array.
-     `nlines' is the allocated size.  */
-
-  nextline = linearray;
-
-  /* Parse the input file's data, and make entries for the lines.  */
-
-  nextline = parsefile (infile, nextline, file_data, file_size);
-  if (nextline == 0)
-    {
-      error ("%s: not a texinfo index file", infile);
-      return;
-    }
-
-  /* Sort the lines. */
-
-  /* If we have enough space, find the first keyfield of each line in advance.
-     Make a `struct lineinfo' for each line, which records the keyfield
-     as well as the line, and sort them.  */
-
-  lineinfo = (struct lineinfo *) malloc ((nextline - linearray) * sizeof (struct lineinfo));
-
-  if (lineinfo)
-    {
-      struct lineinfo *lp;
-      char **p;
-
-      for (lp = lineinfo, p = linearray; p != nextline; lp++, p++)
-	{
-	  lp->text = *p;
-	  lp->key.text = find_field (keyfields, *p, &lp->keylen);
-	  if (keyfields->numeric)
-	    lp->key.number = find_value (lp->key.text, lp->keylen);
-	}
-
-      qsort (lineinfo, nextline - linearray, sizeof (struct lineinfo), compare_prepared);
-
-      for (lp = lineinfo, p = linearray; p != nextline; lp++, p++)
-	*p = lp->text;
-
-      free (lineinfo);
-    }
-  else
-    qsort (linearray, nextline - linearray, sizeof (char *), compare_full);
-
-  /* Open the output file. */
-
-  if (outfile)
-    {
-      ostream = fopen (outfile, "w");
-      if (!ostream)
-	pfatal_with_name (outfile);
-    }
-
-  writelines (linearray, nextline - linearray, ostream);
-  if (outfile)
-    fclose (ostream);
-
-  free (linearray);
-  free (data);
-}
-
-/* Parse an input string in core into lines.
-   DATA is the input string, and SIZE is its length.
-   Data goes in LINEARRAY starting at NEXTLINE.
-   The value returned is the first entry in LINEARRAY still unused.
-   Value 0 means input file contents are invalid.  */
-
-char **
-parsefile (filename, nextline, data, size)
-     char *filename;
-     char **nextline;
-     char *data;
-     long size;
-{
-  char *p, *end;
-  char **line = nextline;
-
-  p = data;
-  end = p + size;
-  *end = 0;
-
-  while (p != end)
-    {
-      if (p[0] != '\\' && p[0] != '@')
-	return 0;
-
-      *line = p;
-      while (*p && *p != '\n')
-	p++;
-      if (p != end)
-	p++;
-
-      line++;
-      if (line == linearray + nlines)
-	{
-	  char **old = linearray;
-	  linearray = (char **) xrealloc (linearray, sizeof (char *) * (nlines *= 4));
-	  line += linearray - old;
-	}
-    }
-
-  return line;
-}
-
-/* Indexification is a filter applied to the sorted lines
-   as they are being written to the output file.
-   Multiple entries for the same name, with different page numbers,
-   get combined into a single entry with multiple page numbers.
-   The first braced field, which is used for sorting, is discarded.
-   However, its first character is examined, folded to lower case,
-   and if it is different from that in the previous line fed to us
-   a \initial line is written with one argument, the new initial.
-
-   If an entry has four braced fields, then the second and third
-   constitute primary and secondary names.
-   In this case, each change of primary name
-   generates a \primary line which contains only the primary name,
-   and in between these are \secondary lines which contain
-   just a secondary name and page numbers. */
-
-/* The last primary name we wrote a \primary entry for.
-   If only one level of indexing is being done, this is the last name seen. */
-char *lastprimary;
-/* Length of storage allocated for lastprimary. */
-int lastprimarylength;
-
-/* Similar, for the secondary name. */
-char *lastsecondary;
-int lastsecondarylength;
-
-/* Zero if we are not in the middle of writing an entry.
-   One if we have written the beginning of an entry but have not
-   yet written any page numbers into it.
-   Greater than one if we have written the beginning of an entry
-   plus at least one page number. */
-int pending;
-
-/* The initial (for sorting purposes) of the last primary entry written.
-   When this changes, a \initial {c} line is written */
-
-char *lastinitial;
-
-int lastinitiallength;
-
-/* When we need a string of length 1 for the value of lastinitial,
-   store it here.  */
-
-char lastinitial1[2];
-
-/* Initialize static storage for writing an index. */
-
-void
-init_index ()
-{
-  pending = 0;
-  lastinitial = lastinitial1;
-  lastinitial1[0] = 0;
-  lastinitial1[1] = 0;
-  lastinitiallength = 0;
-  lastprimarylength = 100;
-  lastprimary = (char *) xmalloc (lastprimarylength + 1);
-  bzero (lastprimary, lastprimarylength + 1);
-  lastsecondarylength = 100;
-  lastsecondary = (char *) xmalloc (lastsecondarylength + 1);
-  bzero (lastsecondary, lastsecondarylength + 1);
-}
-
-/* Indexify.  Merge entries for the same name,
-   insert headers for each initial character, etc.  */
-
-void
-indexify (line, ostream)
-     char *line;
-     FILE *ostream;
-{
-  char *primary, *secondary, *pagenumber;
-  int primarylength, secondarylength = 0, pagelength;
-  int nosecondary;
-  int initiallength;
-  char *initial;
-  char initial1[2];
-  register char *p;
-
-  /* First, analyze the parts of the entry fed to us this time. */
-
-  p = find_braced_pos (line, 0, 0, 0);
-  if (*p == '{')
-    {
-      initial = p;
-      /* Get length of inner pair of braces starting at `p',
-	 including that inner pair of braces.  */
-      initiallength = find_braced_end (p + 1) + 1 - p;
-    }
-  else
-    {
-      initial = initial1;
-      initial1[0] = *p;
-      initial1[1] = 0;
-      initiallength = 1;
-
-      if (initial1[0] >= 'a' && initial1[0] <= 'z')
-	initial1[0] -= 040;
-    }
-
-  pagenumber = find_braced_pos (line, 1, 0, 0);
-  pagelength = find_braced_end (pagenumber) - pagenumber;
-  if (pagelength == 0)
-    abort ();
-
-  primary = find_braced_pos (line, 2, 0, 0);
-  primarylength = find_braced_end (primary) - primary;
-
-  secondary = find_braced_pos (line, 3, 0, 0);
-  nosecondary = !*secondary;
-  if (!nosecondary)
-    secondarylength = find_braced_end (secondary) - secondary;
-
-  /* If the primary is different from before, make a new primary entry. */
-  if (strncmp (primary, lastprimary, primarylength))
-    {
-      /* Close off current secondary entry first, if one is open. */
-      if (pending)
-	{
-	  fputs ("}\n", ostream);
-	  pending = 0;
-	}
-
-      /* If this primary has a different initial, include an entry for
-	 the initial. */
-      if (initiallength != lastinitiallength ||
-	  strncmp (initial, lastinitial, initiallength))
-	{
-	  fprintf (ostream, "\\initial {");
-	  fwrite (initial, 1, initiallength, ostream);
-	  fprintf (ostream, "}\n", initial);
-	  if (initial == initial1)
-	    {
-	      lastinitial = lastinitial1;
-	      *lastinitial1 = *initial1;
-	    }
-	  else
-	    {
-	      lastinitial = initial;
-	    }
-	  lastinitiallength = initiallength;
-	}
-
-      /* Make the entry for the primary.  */
-      if (nosecondary)
-	fputs ("\\entry {", ostream);
-      else
-	fputs ("\\primary {", ostream);
-      fwrite (primary, primarylength, 1, ostream);
-      if (nosecondary)
-	{
-	  fputs ("}{", ostream);
-	  pending = 1;
-	}
-      else
-	fputs ("}\n", ostream);
-
-      /* Record name of most recent primary. */
-      if (lastprimarylength < primarylength)
-	{
-	  lastprimarylength = primarylength + 100;
-	  lastprimary = (char *) xrealloc (lastprimary,
-					   1 + lastprimarylength);
-	}
-      strncpy (lastprimary, primary, primarylength);
-      lastprimary[primarylength] = 0;
-
-      /* There is no current secondary within this primary, now. */
-      lastsecondary[0] = 0;
-    }
-
-  /* Should not have an entry with no subtopic following one with a subtopic. */
-
-  if (nosecondary && *lastsecondary)
-    error ("entry %s follows an entry with a secondary name", line);
-
-  /* Start a new secondary entry if necessary. */
-  if (!nosecondary && strncmp (secondary, lastsecondary, secondarylength))
-    {
-      if (pending)
-	{
-	  fputs ("}\n", ostream);
-	  pending = 0;
-	}
-
-      /* Write the entry for the secondary.  */
-      fputs ("\\secondary {", ostream);
-      fwrite (secondary, secondarylength, 1, ostream);
-      fputs ("}{", ostream);
-      pending = 1;
-
-      /* Record name of most recent secondary. */
-      if (lastsecondarylength < secondarylength)
-	{
-	  lastsecondarylength = secondarylength + 100;
-	  lastsecondary = (char *) xrealloc (lastsecondary,
-					     1 + lastsecondarylength);
-	}
-      strncpy (lastsecondary, secondary, secondarylength);
-      lastsecondary[secondarylength] = 0;
-    }
-
-  /* Here to add one more page number to the current entry. */
-  if (pending++ != 1)
-    fputs (", ", ostream);	/* Punctuate first, if this is not the first. */
-  fwrite (pagenumber, pagelength, 1, ostream);
-}
-
-/* Close out any unfinished output entry. */
-
-void
-finish_index (ostream)
-     FILE *ostream;
-{
-  if (pending)
-    fputs ("}\n", ostream);
-  free (lastprimary);
-  free (lastsecondary);
-}
-
-/* Copy the lines in the sorted order.
-   Each line is copied out of the input file it was found in. */
-
-void
-writelines (linearray, nlines, ostream)
-     char **linearray;
-     int nlines;
-     FILE *ostream;
-{
-  char **stop_line = linearray + nlines;
-  char **next_line;
-
-  init_index ();
-
-  /* Output the text of the lines, and free the buffer space. */
-
-  for (next_line = linearray; next_line != stop_line; next_line++)
-    {
-      /* If -u was specified, output the line only if distinct from previous one.  */
-      if (next_line == linearray
-      /* Compare previous line with this one, using only the
-         explicitly specd keyfields. */
-	  || compare_general (*(next_line - 1), *next_line, 0L, 0L, num_keyfields - 1))
-	{
-	  char *p = *next_line;
-	  char c;
-
-	  while ((c = *p++) && c != '\n')
-	    /* Do nothing. */ ;
-	  *(p - 1) = 0;
-	  indexify (*next_line, ostream);
-	}
-    }
-
-  finish_index (ostream);
-}
-
-/* Assume (and optionally verify) that each input file is sorted;
-   merge them and output the result.
-   Returns nonzero if any input file fails to be sorted.
-
-   This is the high-level interface that can handle an unlimited
-   number of files.  */
-
-#define MAX_DIRECT_MERGE 10
-
-int
-merge_files (infiles, nfiles, outfile)
-     char **infiles;
-     int nfiles;
-     char *outfile;
-{
-  char **tempfiles;
-  int ntemps;
-  int i;
-  int value = 0;
-  int start_tempcount = tempcount;
-
-  if (nfiles <= MAX_DIRECT_MERGE)
-    return merge_direct (infiles, nfiles, outfile);
-
-  /* Merge groups of MAX_DIRECT_MERGE input files at a time,
-     making a temporary file to hold each group's result.  */
-
-  ntemps = (nfiles + MAX_DIRECT_MERGE - 1) / MAX_DIRECT_MERGE;
-  tempfiles = (char **) xmalloc (ntemps * sizeof (char *));
-  for (i = 0; i < ntemps; i++)
-    {
-      int nf = MAX_DIRECT_MERGE;
-      if (i + 1 == ntemps)
-	nf = nfiles - i * MAX_DIRECT_MERGE;
-      tempfiles[i] = maketempname (++tempcount);
-      value |= merge_direct (&infiles[i * MAX_DIRECT_MERGE], nf, tempfiles[i]);
-    }
-
-  /* All temporary files that existed before are no longer needed
-     since their contents have been merged into our new tempfiles.
-     So delete them.  */
-  flush_tempfiles (start_tempcount);
-
-  /* Now merge the temporary files we created.  */
-
-  merge_files (tempfiles, ntemps, outfile);
-
-  free (tempfiles);
-
-  return value;
-}
-
-/* Assume (and optionally verify) that each input file is sorted;
-   merge them and output the result.
-   Returns nonzero if any input file fails to be sorted.
-
-   This version of merging will not work if the number of
-   input files gets too high.  Higher level functions
-   use it only with a bounded number of input files.  */
-
-int
-merge_direct (infiles, nfiles, outfile)
-     char **infiles;
-     int nfiles;
-     char *outfile;
-{
-  struct linebuffer *lb1, *lb2;
-  struct linebuffer **thisline, **prevline;
-  FILE **streams;
-  int i;
-  int nleft;
-  int lossage = 0;
-  int *file_lossage;
-  struct linebuffer *prev_out = 0;
-  FILE *ostream = stdout;
-
-  if (outfile)
-    {
-      ostream = fopen (outfile, "w");
-    }
-  if (!ostream)
-    pfatal_with_name (outfile);
-
-  init_index ();
-
-  if (nfiles == 0)
-    {
-      if (outfile)
-	fclose (ostream);
-      return 0;
-    }
-
-  /* For each file, make two line buffers.
-     Also, for each file, there is an element of `thisline'
-     which points at any time to one of the file's two buffers,
-     and an element of `prevline' which points to the other buffer.
-     `thisline' is supposed to point to the next available line from the file,
-     while `prevline' holds the last file line used,
-     which is remembered so that we can verify that the file is properly sorted. */
-
-  /* lb1 and lb2 contain one buffer each per file. */
-  lb1 = (struct linebuffer *) xmalloc (nfiles * sizeof (struct linebuffer));
-  lb2 = (struct linebuffer *) xmalloc (nfiles * sizeof (struct linebuffer));
-
-  /* thisline[i] points to the linebuffer holding the next available line in file i,
-     or is zero if there are no lines left in that file.  */
-  thisline = (struct linebuffer **)
-    xmalloc (nfiles * sizeof (struct linebuffer *));
-  /* prevline[i] points to the linebuffer holding the last used line
-     from file i.  This is just for verifying that file i is properly
-     sorted.  */
-  prevline = (struct linebuffer **)
-    xmalloc (nfiles * sizeof (struct linebuffer *));
-  /* streams[i] holds the input stream for file i.  */
-  streams = (FILE **) xmalloc (nfiles * sizeof (FILE *));
-  /* file_lossage[i] is nonzero if we already know file i is not
-     properly sorted.  */
-  file_lossage = (int *) xmalloc (nfiles * sizeof (int));
-
-  /* Allocate and initialize all that storage. */
-
-  for (i = 0; i < nfiles; i++)
-    {
-      initbuffer (&lb1[i]);
-      initbuffer (&lb2[i]);
-      thisline[i] = &lb1[i];
-      prevline[i] = &lb2[i];
-      file_lossage[i] = 0;
-      streams[i] = fopen (infiles[i], "r");
-      if (!streams[i])
-	pfatal_with_name (infiles[i]);
-
-      readline (thisline[i], streams[i]);
-    }
-
-  /* Keep count of number of files not at eof. */
-  nleft = nfiles;
-
-  while (nleft)
-    {
-      struct linebuffer *best = 0;
-      struct linebuffer *exch;
-      int bestfile = -1;
-      int i;
-
-      /* Look at the next avail line of each file; choose the least one.  */
-
-      for (i = 0; i < nfiles; i++)
-	{
-	  if (thisline[i] &&
-	      (!best ||
-	       0 < compare_general (best->buffer, thisline[i]->buffer,
-				 (long) bestfile, (long) i, num_keyfields)))
-	    {
-	      best = thisline[i];
-	      bestfile = i;
-	    }
-	}
-
-      /* Output that line, unless it matches the previous one and we
-	 don't want duplicates. */
-
-      if (!(prev_out &&
-	    !compare_general (prev_out->buffer,
-			      best->buffer, 0L, 1L, num_keyfields - 1)))
-	indexify (best->buffer, ostream);
-      prev_out = best;
-
-      /* Now make the line the previous of its file, and fetch a new
-	 line from that file.  */
-
-      exch = prevline[bestfile];
-      prevline[bestfile] = thisline[bestfile];
-      thisline[bestfile] = exch;
-
-      while (1)
-	{
-	  /* If the file has no more, mark it empty. */
-
-	  if (feof (streams[bestfile]))
-	    {
-	      thisline[bestfile] = 0;
-	      /* Update the number of files still not empty. */
-	      nleft--;
-	      break;
-	    }
-	  readline (thisline[bestfile], streams[bestfile]);
-	  if (thisline[bestfile]->buffer[0] || !feof (streams[bestfile]))
-	    break;
-	}
-    }
-
-  finish_index (ostream);
-
-  /* Free all storage and close all input streams. */
-
-  for (i = 0; i < nfiles; i++)
-    {
-      fclose (streams[i]);
-      free (lb1[i].buffer);
-      free (lb2[i].buffer);
-    }
-  free (file_lossage);
-  free (lb1);
-  free (lb2);
-  free (thisline);
-  free (prevline);
-  free (streams);
-
-  if (outfile)
-    fclose (ostream);
-
-  return lossage;
-}
-
-/* Print error message and exit.  */
-
-void
-fatal (s1, s2)
-     char *s1, *s2;
-{
-  error (s1, s2);
-  exit (TI_FATAL_ERROR);
-}
-
-/* Print error message.  S1 is printf control string, S2 is arg for it. */
-
-void
-error (s1, s2)
-     char *s1, *s2;
-{
-  printf ("%s: ", program_name);
-  printf (s1, s2);
-  printf ("\n");
-}
-
-void
-perror_with_name (name)
-     char *name;
-{
-  char *s;
-
-  if (errno < sys_nerr)
-    s = concat ("", sys_errlist[errno], " for %s");
-  else
-    s = "cannot open %s";
-  error (s, name);
-}
-
-void
-pfatal_with_name (name)
-     char *name;
-{
-  char *s;
-
-  if (errno < sys_nerr)
-    s = concat ("", sys_errlist[errno], " for %s");
-  else
-    s = "cannot open %s";
-  fatal (s, name);
-}
-
-/* Return a newly-allocated string whose contents concatenate those of
-   S1, S2, S3.  */
-
-char *
-concat (s1, s2, s3)
-     char *s1, *s2, *s3;
-{
-  int len1 = strlen (s1), len2 = strlen (s2), len3 = strlen (s3);
-  char *result = (char *) xmalloc (len1 + len2 + len3 + 1);
-
-  strcpy (result, s1);
-  strcpy (result + len1, s2);
-  strcpy (result + len1 + len2, s3);
-  *(result + len1 + len2 + len3) = 0;
-
-  return result;
-}
-
-/* Just like malloc, but kills the program in case of fatal error. */
-void *
-xmalloc (nbytes)
-     int nbytes;
-{
-  void *temp = (void *) malloc (nbytes);
-
-  if (nbytes && temp == (void *)NULL)
-    memory_error ("xmalloc", nbytes);
-
-  return (temp);
-}
-
-/* Like realloc (), but barfs if there isn't enough memory. */
-void *
-xrealloc (pointer, nbytes)
-     void *pointer;
-     int nbytes;
-{
-  void *temp;
-
-  if (!pointer)
-    temp = (void *)xmalloc (nbytes);
-  else
-    temp = (void *)realloc (pointer, nbytes);
-
-  if (nbytes && !temp)
-    memory_error ("xrealloc", nbytes);
-
-  return (temp);
-}
-
-memory_error (callers_name, bytes_wanted)
-     char *callers_name;
-     int bytes_wanted;
-{
-  char printable_string[80];
-
-  sprintf (printable_string,
-	   "Virtual memory exhausted in %s ()!  Needed %d bytes.",
-	   callers_name, bytes_wanted);
-
-  error (printable_string);
-  abort ();
-}
-
-#ifndef STDC_HEADERS
-void
-bzero (b, length)
-     register char *b;
-     register int length;
-{
-#ifdef VMS
-  short zero = 0;
-  long max_str = 65535;
-
-  while (length > max_str)
-    {
-      (void) LIB$MOVC5 (&zero, &zero, &zero, &max_str, b);
-      length -= max_str;
-      b += max_str;
-    }
-  (void) LIB$MOVC5 (&zero, &zero, &zero, &length, b);
-#else
-  while (length-- > 0)
-    *b++ = 0;
-#endif /* not VMS */
-}
-#endif /* not STDC_HEADERS */
diff --git a/Master/texmf-dist/doc/support/texdraw/txdexamp.latex b/Master/texmf-dist/doc/support/texdraw/txdexamp.latex
deleted file mode 100644
index c3ea8b4eee9..00000000000
--- a/Master/texmf-dist/doc/support/texdraw/txdexamp.latex
+++ /dev/null
@@ -1,514 +0,0 @@
-% TeXdraw examples for latex
-
-% $Id: txdexamp.latex,v 2.0 1995/12/18 texdraw-V2R0 $
-
-% These examples are taken from the TeXdraw manual.
-
-%  Peter Kabal
-%  Department of Electrical Engineering
-%  McGill University
-%  3480 University
-%  Montreal, Quebec
-%  Canada  H3A 2A7
-
-%  kabal@TSP.EE.McGill.CA
- 
-\documentclass [11pt]{article}
-\usepackage {texdraw}
-
-\input txdtools
-\let\et=\etexdraw
-\def\etexdraw{\drawbb\et}
-
-\begin{document}
-
-\noindent
-TeXdraw examples using LaTeX.
-
-\bigskip
-\begin{center}
-\begin{texdraw}
-  \avec (0 0.8) \textref h:C v:B \htext (0 0.9){\sl y}
-  \move (0 0) \avec (0.8 0) \textref h:L v:C \htext(0.9 0){\sl x}
-  \move (0 1.0)
-\end{texdraw}
-\end{center}
-
-\bigskip
-\begin{center}
-\begin{texdraw}
-  \drawdim{cm} \linewd 0.02
-  \move(2 2) \lvec(3 3) \lvec(2 4) \lvec(1 3) \lvec(2 2)
-  \textref h:C v:C \htext(2 3){$\sum \rho_n$}
-\end{texdraw}
-\end{center}
-
-\bigskip
-\begin{center}
-\begin{texdraw}
-  \drawdim in
-  \linewd 0.03 \setgray 0.6 \arrowheadtype t:F \avec(0.5 0.5)
-  \linewd 0.01 \setgray 0   \arrowheadtype t:V \avec(1.0 0.5)
-  \linewd 0.015 \lpatt(0.067 0.1) \lvec (1.5 0)
-  \linewd 0.02 \lpatt() \arrowheadtype t:T \avec(2.0 0.5)
-  \arrowheadtype t:H \avec(2.5 0.5)
-  \setgray 0.4 \arrowheadtype t:W \avec(3.0 0)
-  \textref h:R v:T \htext (0.35 0.50){\tt t:F}
-  \textref h:R v:T \htext (1.0 0.43){\tt t:V}
-  \textref h:R v:T \htext (1.82 0.50){\tt t:T}
-  \textref h:R v:T \htext (2.5 0.43){\tt t:H}
-  \textref h:R v:B \htext (2.8 0){\tt t:W}
-\end{texdraw}
-\end{center}
-
-\bigskip
-\begin{center}
-\begin{texdraw}
-  \newcommand{\bdot}{\bsegment
-                  \fcir f:0 r:0.02
-                \esegment}
-  \newcommand{\Ttext}[1]{\bsegment
-                  \textref h:C v:B \htext (0 +0.06){#1}
-                \esegment}
-  \newcommand{\Btext}[1]{\bsegment
-                  \textref h:C v:T \htext (0 -0.06){#1}
-                \esegment}
-  \newcommand{\Ltext}[1]{\bsegment
-                  \textref h:R v:C \htext (-0.08 0){#1}
-                \esegment}
-  \newcommand{\Rtext}[1]{\bsegment
-                  \textref h:L v:C \htext (+0.08 0){#1}
-                \esegment}
-  \move (-1.5 0)
-  \bsegment
-    \move (+1.55 +0.45) \move (-1.55 -0.45) \move (0 0)
-    \Ttext{Horizontal Text}
-    \bdot                   \Btext{\tt h:C v:C}
-    \move (-0.9 0)    \bdot \Ltext{\tt h:L v:C}
-    \move (+0.9 0)    \bdot \Rtext{\tt h:R v:C}
-    \move (0 +0.3)    \bdot \Ttext{\tt h:C v:T}
-    \move (0 -0.3)    \bdot \Btext{\tt h:C v:B}
-    \move (-0.9 -0.3) \bdot \Ltext{\tt h:L v:B}
-    \lvec (-0.9 +0.3) \bdot \Ltext{\tt h:L v:T}
-    \lvec (+0.9 +0.3) \bdot \Rtext{\tt h:R v:T}
-    \lvec (+0.9 -0.3) \bdot \Rtext{\tt h:R v:B}
-    \lvec (-0.9 -0.3)
-  \esegment
-  \newcommand{\atext}{\rtext td:45 }
-  \newcommand{\ATtext}[1]{\bsegment
-                   \setsegscale 0.707
-                   \textref h:C v:B \atext (-0.06 +0.06){#1}
-                 \esegment}
-  \newcommand{\ABtext}[1]{\bsegment
-                   \setsegscale 0.707
-                   \textref h:C v:T \atext (+0.060 -0.06){#1}
-                 \esegment}
-  \newcommand{\ALtext}[1]{\bsegment
-                   \setsegscale 0.707
-                   \textref h:R v:C \atext (-0.08 -0.08){#1}
-                 \esegment}
-  \newcommand{\ARtext}[1]{\bsegment
-                   \setsegscale 0.707
-                   \textref h:L v:C \atext (+0.08 +0.08){#1}
-                 \esegment}
-  \move (+1.5 0)
-  \bsegment
-    \move (+1.33 +1.33) \move (-1.33 -1.33) \move (0 0)
-    \setsegscale 0.707
-    \ATtext{Rotated Text}
-    \bdot                   \ABtext{\tt h:C v:C}
-    \move (-0.9 -0.9) \bdot \ALtext{\tt h:L v:C}
-    \move (+0.9 +0.9) \bdot \ARtext{\tt h:R v:C}
-    \move (-0.3 +0.3) \bdot \ATtext{\tt h:C v:T}
-    \move (+0.3 -0.3) \bdot \ABtext{\tt h:C v:B}
-    \move (-0.6 -1.2) \bdot \ALtext{\tt h:L v:B}
-    \lvec (-1.2 -0.6) \bdot \ALtext{\tt h:L v:T}
-    \lvec (+0.6 +1.2) \bdot \ARtext{\tt h:R v:T}
-    \lvec (+1.2 +0.6) \bdot \ARtext{\tt h:R v:B}
-    \lvec (-0.6 -1.2)
-  \esegment
-\end{texdraw}
-\end{center}
-
-\vfill
-\newpage
-
-
-\bigskip
-\begin{center}
-\begin{texdraw}
-  \move(-0.75 -0.25) \lvec (-0.75 +0.5) \lvec (+0.75 +0.5)
-  \lvec(+0.75 -0.25) \ifill f:0.9         % fill the region
-  \move(0 0)
-             \avec(-0.75 -0.25) \textref h:R v:C \htext{H-text}
-  \move(0 0) \avec(-0.75 +0.25) \textref h:R v:B \htext{H-text}
-  \move(0 0) \avec(0 +0.5)      \textref h:L v:T \vtext{V-text}
-  \move(0 0) \avec(+0.75 +0.25) \textref h:L v:B \htext{H-text}
-  \move(0 0) \avec(+0.75 -0.25) \textref h:L v:C \htext{H-text}
-  \move (-1.15 -0.3) \move (+1.15 +0.92)  % increase the size of the drawing
-\end{texdraw}
-\end{center}
-
-\bigskip
-\begin{center}
-\begin{texdraw}
-  \linewd 0.02
-  \fcir f:0.7 r:1
-  \larc r:1 sd:45 ed:135
-  \lvec ( 0.707  0.707) \move (0 0) \lvec (-0.707 +0.707)
-\end{texdraw}
-\end{center}
-
-\bigskip
-\begin{center}
-\begin{texdraw}
-  \newcommand{\Ltext}[1]{\bsegment
-                  \textref h:R v:C \htext (-0.08 0){#1}
-                \esegment}
-  \newcommand{\Rtext}[1]{\bsegment
-                  \textref h:L v:C \htext (+0.08 0){#1}
-                \esegment}
-  \newcommand{\bdot}{\fcir f:0 r:0.02 }
-  \newcommand{\Ldot}[1]{\bdot \Ltext{#1}}
-  \newcommand{\Rdot}[1]{\bdot \Rtext{#1}}
-  \move (-2 0)
-  \bsegment
-    \lpatt (0.033)
-    \move (0 0) \Ldot{0} \lvec (0 1) \Ldot{1}
-    \lvec (1 1) \Rdot{2} \lvec (1 0) \Rdot{3}
-    \lpatt ()
-    \move (0 0) \clvec (0 1)(1 1)(1 0)
-  \esegment
-  \move (0 0)
-  \bsegment
-    \lpatt (0.033)
-    \move (0 0) \Ldot{0}  \lvec (0.5 0.8) \Ldot{1}
-    \lvec (1.5 0.8) \Rdot{2} \lvec (1 0) \Rdot{3}
-    \lpatt ()
-    \move (0 0) \clvec (0.5 1)(1.5 1)(1 0)
-  \esegment
-  \move ( 2 0)
-  \bsegment
-    \lpatt (0.033)
-    \move (0 0) \Ldot{0} \lvec (0 1) \Ldot{1}
-    \lvec (1 0) \Rdot{2} \lvec (1 1) \Rdot{3}
-    \lpatt ()
-    \move (0 0) \clvec (0 1)(1 0)(1 1)
-  \esegment
-\end{texdraw}
-\end{center}
-
-\bigskip
-\begin{center}
-\begin{texdraw}
-\move (0.5 0)
-\lvec (0 0.5) \clvec (0.5 0.85)(1 0.65)(1.5 1)
-\lvec (2 0.5) \clvec (1.5 0.15)(1 0.35)(0.5 0)
-\lfill f:0.8
-\end{texdraw}
-\end{center}
-
-\vfill
-\newpage
-
-
-\bigskip
-\newcommand{\tbox}[1]{\bsegment
-               \lvec (0 +0.25)    \lvec (0.75 +0.25)
-               \lvec (0.75 -0.25) \lvec (0 -0.25) \lvec (0 0)
-               \textref h:C v:C \htext (0.375 0){#1}
-               \savepos (0.75 0)(*ex *ey)
-             \esegment
-             \move (*ex *ey)}
-\begin{center}
-\begin{texdraw}
-  \ravec (1 0) \tbox{$H(z)$} \ravec (1 0)
-\end{texdraw}
-\end{center}
-
-\bigskip
-\def\cavec (#1 #2)(#3 #4)(#5 #6){
-  \clvec (#1 #2)(#3 #4)(#5 #6)
-  \cossin (#3 #4)(#5 #6)\cosa\sina
-  \rmove (0 0) % stroke the Bezier curve
-  \bsegment
-    \drawdim in \setsegscale 0.05
-    \move ({-\cosa} -\sina)  \avec (0 0)
-  \esegment}
-
-\def\caw (#1 #2){
-  \currentpos \xa\ya
-  \cossin ({\xa} \ya)(#1 #2)\cosa\sina
-
-% The nominal wiggly curve is (0 0) (1+dx dy) (-dx -dy) (1 0)
-% Find the rotated offset (dx dy) -> (du dv)
-  \rotatecoord (0.4 0.1)\cosa\sina \du\dv
-
-% calculate the length of the vector
-  \vectlen ({\xa} \ya)(#1 #2)\len
-
-% draw the curve in normalized units
-  \bsegment
-    \setsegscale {\len}
-    \realadd \cosa \du \tmpa  \realadd \sina \dv \tmpb
-    \cavec ({\tmpa} \tmpb)({-\du} -\dv)({\cosa} \sina)
-  \esegment
-
-  \move (#1 #2)}
-
-% rotate a coordinate (x y)
-% arguments: (x y) cosa sina x' y'
-%  x' = cosa * x - sina * y;  y' = sina * x + cosa * y
-\def\rotatecoord (#1 #2)#3#4#5#6{
-  \getpos (#1 #2)\xarg\yarg
-  \realmult \xarg {#3} \tmpa  \realmult \yarg {#4} \tmpb
-  \realadd \tmpa {-\tmpb} #5
-  \realmult \xarg {#4} \tmpa  \realmult \yarg {#3} \tmpb
-  \realadd \tmpa \tmpb #6}
-
-\begin{center}
-\begin{texdraw}
-  \arrowheadtype t:W
-  \move (0 0)
-  \cavec (1.4 0.1)(-0.4 -0.1)(1 0)
-  \move (1 0) \caw (1 1) \htext{tip at \tt (1 1)}
-  \move (1 0) \caw (2 1) \htext{tip at \tt (2 1)}
-  \move (1 0) \caw (2 0) \htext{tip at \tt (2 0)}
-  \move (0 1.13) \move (0 -0.04)
-\end{texdraw}
-\end{center}
-
-\vfill
-\newpage
-
-
-\bigskip
-\def\delay {\bsegment
-              \setsegscale 0.3
-              \lvec (0 +0.5) \lvec (1 +0.5) \lvec (1 -0.5)
-              \lvec (0 -0.5) \lvec (0 0)
-              \textref h:C v:C  \htext (0.5 0){$z^{-1}$}
-              \savepos (1 0)(*ex *ey)
-            \esegment
-            \move (*ex *ey)}
-\def\bdot {\fcir f:0 r:0.02 }
-\def\Ttext #1{\bsegment
-                \textref h:C v:B  \htext (0 +0.06){#1}
-              \esegment}
-\def\Btext #1{\bsegment
-                \textref h:C v:T  \htext (0 -0.06){#1}
-              \esegment}
-\def\Ltext #1{\bsegment
-                \textref h:R v:C  \htext (-0.06 0){#1}
-              \esegment}
-\def\Rtext #1{\bsegment
-                \textref h:L v:C  \htext (+0.06 0){#1}
-              \esegment}
-\def\cradius {0.08}
-\def\pluss {\bsegment
-              \setsegscale {\cradius}
-              \move (-0.5 0) \lvec (+0.5 0)
-              \move (0 -0.5) \lvec (0 +0.5)
-            \esegment}
-\def\pcir {\lcir r:{\cradius} \pluss}
-\def\puttext (#1 #2)#3{\bsegment
-                         \setsegscale {\cradius}
-                         \textref h:C v:C \htext (#1 #2){#3}
-                       \esegment}
-\def\putwnw #1{\puttext (-1.7 +1.2){#1}}
-\def\putwsw #1{\puttext (-1.7 -1.2){#1}}
-\def\putn   #1{\puttext ( 0   +2  ){#1}}
-\def\puts   #1{\puttext ( 0   -2  ){#1}}
-\def\avectoc (#1 #2){\currentpos \xa\ya
-                     \cossin ({\xa} \ya)(#1 #2)\cosa\sina
-                     \savepos (#1 #2)(*tx *ty)
-                     \bsegment
-                       \move (*tx *ty)
-                       \setsegscale {\cradius}
-                       \rmove ({-\cosa} -\sina)
-                       \savecurrpos (*ex *ey)
-                     \esegment
-                     \avec (*ex *ey)
-                     \move (#1 #2)}
-\def\avecfrc (#1 #2){\currentpos \xa\ya
-                     \cossin ({\xa} \ya)(#1 #2)\cosa\sina
-                     \bsegment
-                       \setsegscale {\cradius}
-                       \move ({\cosa} \sina)
-                       \savecurrpos (*ex *ey)
-                     \esegment
-                     \move (*ex *ey)
-                     \avec (#1 #2)}
-
-\begin{center}
-\begin{texdraw}
-\drawdim in
-\arrowheadtype t:F  \arrowheadsize l:0.08 w:0.04
-\def\pl {$\scriptscriptstyle +$} \def\mn {$\scriptscriptstyle -$}
-
-\move (0 +0.63) \move (0 -0.60) \move (0 0) % compensate for the text size
-
-% Input to the first stage
-\bsegment
-  \Ltext{$x(n)$}
-  \lvec (0.3 0) \bdot \lvec (0.3 +0.4)
-  \move (0.3 0) \lvec (0.3 -0.4)
-  \savepos (0.3 0)(*ex *ey)
-\esegment
-\move (*ex *ey)
-
-% first lattice stage
-\bsegment
-  \move (0 +0.4)  \avectoc (1.7 +0.4)
-  \pcir \putwnw{\pl} \puts{\mn}
-  \avecfrc (2.1 +0.4)
-  \move (0 -0.4)  \avec (0.4 -0.4) \delay \avectoc (1.7 -0.4)
-  \pcir \putwsw{\pl} \putn{\mn}
-  \avecfrc (2.1 -0.4)
-  \move (0.9 +0.4)  \bdot  \avectoc (1.7 -0.4)
-  \move (0.9 -0.4)  \bdot  \avectoc (1.7 +0.4)
-  \move (0.1 +0.42) \Ttext {$f_0(n)$}
-  \move (2.0 +0.42) \Ttext {$f_1(n)$}
-  \move (0.1 -0.4)  \Btext {$b_0(n)$}
-  \move (2.0 -0.4)  \Btext {$b_1(n)$}
-  \textref h:L v:B  \htext (1.15 +0.2){$K_1$}
-  \textref h:L v:T  \htext (1.15 -0.2){$K_1$}
-  \savepos (2.1 0)(*ex *ey)
-\esegment
-\move (*ex *ey)
-
-% center section
-\bsegment
-  \textref h:C v:C
-  \htext (0.3 +0.4){$\cdots$}
-  \htext (0.3 -0.4){$\cdots$}
-  \savepos (0.6 0)(*ex *ey)
-\esegment
-\move (*ex *ey)
-
-% last lattice stage
-\bsegment
-  \move (0 +0.4)  \avectoc (1.7 +0.4)
-  \pcir \putwnw{\pl} \puts{\mn}
-  \avecfrc (2.3 +0.4) \Rtext{$e(n)$}
-  \move (0 -0.4)  \avec (0.4 -0.4) \delay \avectoc (1.7 -0.4)
-  \pcir \putwsw{\pl} \putn{\mn}
-  \avecfrc (2.1 -0.4)
-  \move (0.9 +0.4)  \bdot  \avectoc (1.7 -0.4)
-  \move (0.9 -0.4)  \bdot  \avectoc (1.7 +0.4)
-  \move (0.1 +0.42) \Ttext {$f_{P-1}(n)$}
-  \move (2.0 +0.42) \Ttext {$f_P(n)$}
-  \move (0.1 -0.4)  \Btext {$b_{P-1}(n)$}
-  \move (2.0 -0.4)  \Btext {$b_P(n)$}
-  \textref h:L v:B  \htext (1.15 +0.2){$K_P$}
-  \textref h:L v:T  \htext (1.15 -0.2){$K_P$}
-\esegment
-\end{texdraw}
-\end{center}
-
-\bigskip
-\begin{center}
-\begin{texdraw}
-\arrowheadtype t:F  \arrowheadsize l:0.08 w:0.04
-\def\ds {\displaystyle}
-\def\ticklab (#1 #2)#3{\move(#1 #2)
-                       \bsegment
-                         \lvec (0 0.05)
-                         \textref h:C v:T \htext (0 -0.05){#3}
-                       \esegment}
-\def\Rtext #1{\bsegment
-                \textref h:L v:C \htext ( 0.08 0){#1}
-              \esegment}
-
-\move (2.4 -0.32)    % move to set the size
-
-\move (0 0)
-% Axes
-\avec (0  1.4)
-\move (0 0) \avec (2.2 0) \Rtext{$\omega$}
-\ticklab (0 0)   {0}
-\ticklab (0.8 0) {$\ds {\pi \over  2N} $}
-\ticklab (1.2 0) {$\omega_s$}
-\ticklab (1.6 0) {$\ds {\pi \over N} $}
-
-\linewd 0.025
-\move (0 1)
-\lvec (0.4 1)
-\lvec (0.44 0.998)
-\lvec (0.48 0.988)
-\lvec (0.52 0.973)
-\lvec (0.56 0.951)
-\lvec (0.60 0.923)
-\lvec (0.64 0.891)
-\lvec (0.68 0.852)
-\lvec (0.72 0.809)
-\lvec (0.76 0.760)
-\lvec (0.80 0.707)
-\lvec (0.84 0.649)
-\lvec (0.88 0.587)
-\lvec (0.92 0.522)
-\lvec (0.96 0.454)
-\lvec (1.00 0.382)
-\lvec (1.04 0.309)
-\lvec (1.08 0.233)
-\lvec (1.12 0.156)
-\lvec (1.16 0.078)
-\lvec (1.20 0)
-\lvec (1.9 0)
-\end{texdraw}
-\end{center}
-
-\bigskip
-\begin{center}
-\begin{texdraw}
-\arrowheadtype t:V \arrowheadsize l:0.08 w:0.04
-\linewd 0.01
-\setunitscale 1.5            % circle will have radius 1.5 inches
-
-\def\Btext #1{\bsegment
-                \textref h:C v:T \htext (0 -0.04){#1}
-              \esegment}
-\def\Ttext #1{\bsegment
-                \textref h:C v:B \htext (0  0.04){#1}
-              \esegment}
-\def\Ltext #1{\bsegment
-                \textref h:R v:C \htext (-0.04 0){#1}
-              \esegment}
-\def\bdot {\fcir f:0 r:0.0133 }
-\def\vtick {\bsegment
-              \move (0 -0.05) \lvec (0  0.05)
-            \esegment}
-\def\htick {\bsegment
-              \move (-0.05 0) \lvec ( 0.05 0)
-            \esegment}
-\def\Hlen #1#2{\bsegment
-                 \vtick \avec ({#1} 0) \vtick \avec (0 0)
-                 \relsegscale 0.5
-                 \move ({#1} 0) \Ttext {#2}
-               \esegment}
-\def\Vlen #1#2{\bsegment
-                 \htick \avec (0 {#1}) \htick \avec (0 0)
-                 \relsegscale 0.5
-                 \move (0 {#1}) \Ltext {#2}
-               \esegment}
-
-\lcir r:1                         % circle
-\move (-1.05 0) \lvec ( 1.05 0)   % axes
-\move (0 -1.05) \lvec (0  1.05)
-
-\move (0 0) \lvec (0.707 0.707) \bdot
-\rmove (0.02 0.02) \textref h:L v:B \htext {X}
-\move (0.707 -0.707) \bdot
-\textref h:R v:T \htext(-0.02 -0.02){O}
-
-\move (0.5 0)                     % center of ellipse
-\bsegment
-  \lellip rx:0.435 ry:0.804
-  \bdot \Btext {$\beta_2$}
-  \move (0 0.15) \Hlen {0.435}{$|\beta_1{+}\beta_3|$}
-  \move (-0.7 0) \Vlen {0.804}{$|\beta_1{-}\beta_3|$}
-\esegment
-\end{texdraw}
-\end{center}
-
-\end{document}
diff --git a/Master/texmf-dist/doc/support/texdraw/txdexamp.tex b/Master/texmf-dist/doc/support/texdraw/txdexamp.tex
deleted file mode 100644
index 371b0e64969..00000000000
--- a/Master/texmf-dist/doc/support/texdraw/txdexamp.tex
+++ /dev/null
@@ -1,485 +0,0 @@
-% TeXdraw examples
-
-% $Id: txdexamp.tex,v 2.0 1995/12/18 texdraw-V2R0 $
-
-% These examples are taken from the TeXdraw manual.  Note that the fonts
-% for text will be different from those in the manual -- here we use the
-% plain TeX defaults.
-
-%  Peter Kabal
-%  Department of Electrical Engineering
-%  McGill University
-%  3480 University
-%  Montreal, Quebec
-%  Canada  H3A 2A7
-
-%  kabal@TSP.EE.McGill.CA
- 
-\input texdraw
-\input txdtools
-\let\et=\etexdraw
-\def\etexdraw{\drawbb\et}
-
-\noindent
-TeXdraw examples using plain TeX.
-
-\bigskip
-\centertexdraw{
-  \avec (0 0.8) \textref h:C v:B \htext (0 0.9){\sl y}
-  \move (0 0) \avec (0.8 0) \textref h:L v:C \htext(0.9 0){\sl x}
-  \move (0 1.0)}
-
-\bigskip
-\centertexdraw{
-  \drawdim{cm} \linewd 0.02
-  \move(2 2) \lvec(3 3) \lvec(2 4) \lvec(1 3) \lvec(2 2)
-  \textref h:C v:C \htext(2 3){$\sum \rho_n$}
-}
-
-\bigskip
-\centertexdraw{
-  \drawdim in
-  \linewd 0.03 \setgray 0.6 \arrowheadtype t:F \avec(0.5 0.5)
-  \linewd 0.01 \setgray 0   \arrowheadtype t:V \avec(1.0 0.5)
-  \linewd 0.015 \lpatt(0.067 0.1) \lvec (1.5 0)
-  \linewd 0.02 \lpatt() \arrowheadtype t:T \avec(2.0 0.5)
-  \arrowheadtype t:H \avec(2.5 0.5)
-  \setgray 0.4 \arrowheadtype t:W \avec(3.0 0)
-  \textref h:R v:T \htext (0.35 0.50){\tt t:F}
-  \textref h:R v:T \htext (1.0 0.43){\tt t:V}
-  \textref h:R v:T \htext (1.82 0.50){\tt t:T}
-  \textref h:R v:T \htext (2.5 0.43){\tt t:H}
-  \textref h:R v:B \htext (2.8 0){\tt t:W}
-}
-
-\bigskip
-\centertexdraw{
-  \def\bdot {\bsegment
-               \fcir f:0 r:0.02
-             \esegment}
-  \def\Ttext #1{\bsegment
-                  \textref h:C v:B \htext (0 +0.06){#1}
-                \esegment}
-  \def\Btext #1{\bsegment
-                  \textref h:C v:T \htext (0 -0.06){#1}
-                \esegment}
-  \def\Ltext #1{\bsegment
-                  \textref h:R v:C \htext (-0.08 0){#1}
-                \esegment}
-  \def\Rtext #1{\bsegment
-                  \textref h:L v:C \htext (+0.08 0){#1}
-                \esegment}
-  \move (-1.5 0)
-  \bsegment
-    \move (+1.55 +0.45) \move (-1.55 -0.45) \move (0 0)
-    \Ttext{Horizontal Text}
-    \bdot                   \Btext{\tt h:C v:C}
-    \move (-0.9 0)    \bdot \Ltext{\tt h:L v:C}
-    \move (+0.9 0)    \bdot \Rtext{\tt h:R v:C}
-    \move (0 +0.3)    \bdot \Ttext{\tt h:C v:T}
-    \move (0 -0.3)    \bdot \Btext{\tt h:C v:B}
-    \move (-0.9 -0.3) \bdot \Ltext{\tt h:L v:B}
-    \lvec (-0.9 +0.3) \bdot \Ltext{\tt h:L v:T}
-    \lvec (+0.9 +0.3) \bdot \Rtext{\tt h:R v:T}
-    \lvec (+0.9 -0.3) \bdot \Rtext{\tt h:R v:B}
-    \lvec (-0.9 -0.3)
-  \esegment
-  \def\atext {\rtext td:45 }
-  \def\ATtext #1{\bsegment
-                   \setsegscale 0.707
-                   \textref h:C v:B \atext (-0.06 +0.06){#1}
-                 \esegment}
-  \def\ABtext #1{\bsegment
-                   \setsegscale 0.707
-                   \textref h:C v:T \atext (+0.060 -0.06){#1}
-                 \esegment}
-  \def\ALtext #1{\bsegment
-                   \setsegscale 0.707
-                   \textref h:R v:C \atext (-0.08 -0.08){#1}
-                 \esegment}
-  \def\ARtext #1{\bsegment
-                   \setsegscale 0.707
-                   \textref h:L v:C \atext (+0.08 +0.08){#1}
-                 \esegment}
-  \move (+1.5 0)
-  \bsegment
-    \move (+1.33 +1.33) \move (-1.33 -1.33) \move (0 0)
-    \setsegscale 0.707
-    \ATtext{Rotated Text}
-    \bdot                   \ABtext{\tt h:C v:C}
-    \move (-0.9 -0.9) \bdot \ALtext{\tt h:L v:C}
-    \move (+0.9 +0.9) \bdot \ARtext{\tt h:R v:C}
-    \move (-0.3 +0.3) \bdot \ATtext{\tt h:C v:T}
-    \move (+0.3 -0.3) \bdot \ABtext{\tt h:C v:B}
-    \move (-0.6 -1.2) \bdot \ALtext{\tt h:L v:B}
-    \lvec (-1.2 -0.6) \bdot \ALtext{\tt h:L v:T}
-    \lvec (+0.6 +1.2) \bdot \ARtext{\tt h:R v:T}
-    \lvec (+1.2 +0.6) \bdot \ARtext{\tt h:R v:B}
-    \lvec (-0.6 -1.2)
-  \esegment
-}
-
-\vfill
-\eject
-
-
-\bigskip
-\centertexdraw{
-  \move(-0.75 -0.25) \lvec (-0.75 +0.5) \lvec (+0.75 +0.5)
-  \lvec(+0.75 -0.25) \ifill f:0.9         % fill the region
-  \move(0 0)
-             \avec(-0.75 -0.25) \textref h:R v:C \htext{H-text}
-  \move(0 0) \avec(-0.75 +0.25) \textref h:R v:B \htext{H-text}
-  \move(0 0) \avec(0 +0.5)      \textref h:L v:T \vtext{V-text}
-  \move(0 0) \avec(+0.75 +0.25) \textref h:L v:B \htext{H-text}
-  \move(0 0) \avec(+0.75 -0.25) \textref h:L v:C \htext{H-text}
-  \move (-1.15 -0.3) \move (+1.15 +0.92)  % increase the size of the drawing
-}
-
-\bigskip
-\centertexdraw{
-  \linewd 0.02
-  \fcir f:0.7 r:1
-  \larc r:1 sd:45 ed:135
-  \lvec ( 0.707  0.707) \move (0 0) \lvec (-0.707 +0.707)
-}
-
-\bigskip
-\centertexdraw{
-  \def\Ltext #1{\bsegment
-                  \textref h:R v:C \htext (-0.08 0){#1}
-                \esegment}
-  \def\Rtext #1{\bsegment
-                  \textref h:L v:C \htext (+0.08 0){#1}
-                \esegment}
-  \def\bdot {\fcir f:0 r:0.02 }
-  \def\Ldot #1{\bdot \Ltext{#1}}
-  \def\Rdot #1{\bdot \Rtext{#1}}
-  \move (-2 0)
-  \bsegment
-    \lpatt (0.033)
-    \move (0 0) \Ldot{0} \lvec (0 1) \Ldot{1}
-    \lvec (1 1) \Rdot{2} \lvec (1 0) \Rdot{3}
-    \lpatt ()
-    \move (0 0) \clvec (0 1)(1 1)(1 0)
-  \esegment
-  \move (0 0)
-  \bsegment
-    \lpatt (0.033)
-    \move (0 0) \Ldot{0}  \lvec (0.5 0.8) \Ldot{1}
-    \lvec (1.5 0.8) \Rdot{2} \lvec (1 0) \Rdot{3}
-    \lpatt ()
-    \move (0 0) \clvec (0.5 1)(1.5 1)(1 0)
-  \esegment
-  \move ( 2 0)
-  \bsegment
-    \lpatt (0.033)
-    \move (0 0) \Ldot{0} \lvec (0 1) \Ldot{1}
-    \lvec (1 0) \Rdot{2} \lvec (1 1) \Rdot{3}
-    \lpatt ()
-    \move (0 0) \clvec (0 1)(1 0)(1 1)
-  \esegment
-}
-
-\bigskip
-\centertexdraw{
-\move (0.5 0)
-\lvec (0 0.5) \clvec (0.5 0.85)(1 0.65)(1.5 1)
-\lvec (2 0.5) \clvec (1.5 0.15)(1 0.35)(0.5 0)
-\lfill f:0.8
-}
-
-\vfill
-\eject
-
-
-\bigskip
-\def\tbox #1{\bsegment
-               \lvec (0 +0.25)    \lvec (0.75 +0.25)
-               \lvec (0.75 -0.25) \lvec (0 -0.25) \lvec (0 0)
-               \textref h:C v:C \htext (0.375 0){#1}
-               \savepos (0.75 0)(*ex *ey)
-             \esegment
-             \move (*ex *ey)}
-\centertexdraw{
-  \ravec (1 0) \tbox{$H(z)$} \ravec (1 0)
-}
-
-\bigskip
-\def\cavec (#1 #2)(#3 #4)(#5 #6){
-  \clvec (#1 #2)(#3 #4)(#5 #6)
-  \cossin (#3 #4)(#5 #6)\cosa\sina
-  \rmove (0 0) % stroke the Bezier curve
-  \bsegment
-    \drawdim in \setsegscale 0.05
-    \move ({-\cosa} -\sina)  \avec (0 0)
-  \esegment}
-
-\def\caw (#1 #2){
-  \currentpos \xa\ya
-  \cossin ({\xa} \ya)(#1 #2)\cosa\sina
-
-% The nominal wiggly curve is (0 0) (1+dx dy) (-dx -dy) (1 0)
-% Find the rotated offset (dx dy) -> (du dv)
-  \rotatecoord (0.4 0.1)\cosa\sina \du\dv
-
-% calculate the length of the vector
-  \vectlen ({\xa} \ya)(#1 #2)\len
-
-% draw the curve in normalized units
-  \bsegment
-    \setsegscale {\len}
-    \realadd \cosa \du \tmpa  \realadd \sina \dv \tmpb
-    \cavec ({\tmpa} \tmpb)({-\du} -\dv)({\cosa} \sina)
-  \esegment
-
-  \move (#1 #2)}
-
-% rotate a coordinate (x y)
-% arguments: (x y) cosa sina x' y'
-%  x' = cosa * x - sina * y;  y' = sina * x + cosa * y
-\def\rotatecoord (#1 #2)#3#4#5#6{
-  \getpos (#1 #2)\xarg\yarg
-  \realmult \xarg {#3} \tmpa  \realmult \yarg {#4} \tmpb
-  \realadd \tmpa {-\tmpb} #5
-  \realmult \xarg {#4} \tmpa  \realmult \yarg {#3} \tmpb
-  \realadd \tmpa \tmpb #6}
-
-\centertexdraw{
-  \arrowheadtype t:W
-  \move (0 0)
-  \cavec (1.4 0.1)(-0.4 -0.1)(1 0)
-  \move (1 0) \caw (1 1) \htext{tip at \tt (1 1)}
-  \move (1 0) \caw (2 1) \htext{tip at \tt (2 1)}
-  \move (1 0) \caw (2 0) \htext{tip at \tt (2 0)}
-  \move (0 1.13) \move (0 -0.04)
-}
-
-\vfill
-\eject
-
-
-\bigskip
-\def\delay {\bsegment
-              \setsegscale 0.3
-              \lvec (0 +0.5) \lvec (1 +0.5) \lvec (1 -0.5)
-              \lvec (0 -0.5) \lvec (0 0)
-              \textref h:C v:C  \htext (0.5 0){$z^{-1}$}
-              \savepos (1 0)(*ex *ey)
-            \esegment
-            \move (*ex *ey)}
-\def\bdot {\fcir f:0 r:0.02 }
-\def\Ttext #1{\bsegment
-                \textref h:C v:B  \htext (0 +0.06){#1}
-              \esegment}
-\def\Btext #1{\bsegment
-                \textref h:C v:T  \htext (0 -0.06){#1}
-              \esegment}
-\def\Ltext #1{\bsegment
-                \textref h:R v:C  \htext (-0.06 0){#1}
-              \esegment}
-\def\Rtext #1{\bsegment
-                \textref h:L v:C  \htext (+0.06 0){#1}
-              \esegment}
-\def\cradius {0.08}
-\def\pluss {\bsegment
-              \setsegscale {\cradius}
-              \move (-0.5 0) \lvec (+0.5 0)
-              \move (0 -0.5) \lvec (0 +0.5)
-            \esegment}
-\def\pcir {\lcir r:{\cradius} \pluss}
-\def\puttext (#1 #2)#3{\bsegment
-                         \setsegscale {\cradius}
-                         \textref h:C v:C \htext (#1 #2){#3}
-                       \esegment}
-\def\putwnw #1{\puttext (-1.7 +1.2){#1}}
-\def\putwsw #1{\puttext (-1.7 -1.2){#1}}
-\def\putn   #1{\puttext ( 0   +2  ){#1}}
-\def\puts   #1{\puttext ( 0   -2  ){#1}}
-\def\avectoc (#1 #2){\currentpos \xa\ya
-                     \cossin ({\xa} \ya)(#1 #2)\cosa\sina
-                     \savepos (#1 #2)(*tx *ty)
-                     \bsegment
-                       \move (*tx *ty)
-                       \setsegscale {\cradius}
-                       \rmove ({-\cosa} -\sina)
-                       \savecurrpos (*ex *ey)
-                     \esegment
-                     \avec (*ex *ey)
-                     \move (#1 #2)}
-\def\avecfrc (#1 #2){\currentpos \xa\ya
-                     \cossin ({\xa} \ya)(#1 #2)\cosa\sina
-                     \bsegment
-                       \setsegscale {\cradius}
-                       \move ({\cosa} \sina)
-                       \savecurrpos (*ex *ey)
-                     \esegment
-                     \move (*ex *ey)
-                     \avec (#1 #2)}
-
-\centertexdraw{
-\drawdim in
-\arrowheadtype t:F  \arrowheadsize l:0.08 w:0.04
-\def\pl {$\scriptscriptstyle +$} \def\mn {$\scriptscriptstyle -$}
-
-\move (0 +0.63) \move (0 -0.60) \move (0 0) % compensate for the text size
-
-% Input to the first stage
-\bsegment
-  \Ltext{$x(n)$}
-  \lvec (0.3 0) \bdot \lvec (0.3 +0.4)
-  \move (0.3 0) \lvec (0.3 -0.4)
-  \savepos (0.3 0)(*ex *ey)
-\esegment
-\move (*ex *ey)
-
-% first lattice stage
-\bsegment
-  \move (0 +0.4)  \avectoc (1.7 +0.4)
-  \pcir \putwnw{\pl} \puts{\mn}
-  \avecfrc (2.1 +0.4)
-  \move (0 -0.4)  \avec (0.4 -0.4) \delay \avectoc (1.7 -0.4)
-  \pcir \putwsw{\pl} \putn{\mn}
-  \avecfrc (2.1 -0.4)
-  \move (0.9 +0.4)  \bdot  \avectoc (1.7 -0.4)
-  \move (0.9 -0.4)  \bdot  \avectoc (1.7 +0.4)
-  \move (0.1 +0.42) \Ttext {$f_0(n)$}
-  \move (2.0 +0.42) \Ttext {$f_1(n)$}
-  \move (0.1 -0.4)  \Btext {$b_0(n)$}
-  \move (2.0 -0.4)  \Btext {$b_1(n)$}
-  \textref h:L v:B  \htext (1.15 +0.2){$K_1$}
-  \textref h:L v:T  \htext (1.15 -0.2){$K_1$}
-  \savepos (2.1 0)(*ex *ey)
-\esegment
-\move (*ex *ey)
-
-% center section
-\bsegment
-  \textref h:C v:C
-  \htext (0.3 +0.4){$\cdots$}
-  \htext (0.3 -0.4){$\cdots$}
-  \savepos (0.6 0)(*ex *ey)
-\esegment
-\move (*ex *ey)
-
-% last lattice stage
-\bsegment
-  \move (0 +0.4)  \avectoc (1.7 +0.4)
-  \pcir \putwnw{\pl} \puts{\mn}
-  \avecfrc (2.3 +0.4) \Rtext{$e(n)$}
-  \move (0 -0.4)  \avec (0.4 -0.4) \delay \avectoc (1.7 -0.4)
-  \pcir \putwsw{\pl} \putn{\mn}
-  \avecfrc (2.1 -0.4)
-  \move (0.9 +0.4)  \bdot  \avectoc (1.7 -0.4)
-  \move (0.9 -0.4)  \bdot  \avectoc (1.7 +0.4)
-  \move (0.1 +0.42) \Ttext {$f_{P-1}(n)$}
-  \move (2.0 +0.42) \Ttext {$f_P(n)$}
-  \move (0.1 -0.4)  \Btext {$b_{P-1}(n)$}
-  \move (2.0 -0.4)  \Btext {$b_P(n)$}
-  \textref h:L v:B  \htext (1.15 +0.2){$K_P$}
-  \textref h:L v:T  \htext (1.15 -0.2){$K_P$}
-\esegment
-}
-
-\bigskip
-\centertexdraw{
-\arrowheadtype t:F  \arrowheadsize l:0.08 w:0.04
-\def\ds {\displaystyle}
-\def\ticklab (#1 #2)#3{\move(#1 #2)
-                       \bsegment
-                         \lvec (0 0.05)
-                         \textref h:C v:T \htext (0 -0.05){#3}
-                       \esegment}
-\def\Rtext #1{\bsegment
-                \textref h:L v:C \htext ( 0.08 0){#1}
-              \esegment}
-
-\move (2.4 -0.32)    % move to set the size
-
-\move (0 0)
-% Axes
-\avec (0  1.4)
-\move (0 0) \avec (2.2 0) \Rtext{$\omega$}
-\ticklab (0 0)   {0}
-\ticklab (0.8 0) {$\ds {\pi \over  2N} $}
-\ticklab (1.2 0) {$\omega_s$}
-\ticklab (1.6 0) {$\ds {\pi \over N} $}
-
-\linewd 0.025
-\move (0 1)
-\lvec (0.4 1)
-\lvec (0.44 0.998)
-\lvec (0.48 0.988)
-\lvec (0.52 0.973)
-\lvec (0.56 0.951)
-\lvec (0.60 0.923)
-\lvec (0.64 0.891)
-\lvec (0.68 0.852)
-\lvec (0.72 0.809)
-\lvec (0.76 0.760)
-\lvec (0.80 0.707)
-\lvec (0.84 0.649)
-\lvec (0.88 0.587)
-\lvec (0.92 0.522)
-\lvec (0.96 0.454)
-\lvec (1.00 0.382)
-\lvec (1.04 0.309)
-\lvec (1.08 0.233)
-\lvec (1.12 0.156)
-\lvec (1.16 0.078)
-\lvec (1.20 0)
-\lvec (1.9 0)
-}
-
-\bigskip
-\centertexdraw{
-\arrowheadtype t:V \arrowheadsize l:0.08 w:0.04
-\linewd 0.01
-\setunitscale 1.5            % circle will have radius 1.5 inches
-
-\def\Btext #1{\bsegment
-                \textref h:C v:T \htext (0 -0.04){#1}
-              \esegment}
-\def\Ttext #1{\bsegment
-                \textref h:C v:B \htext (0  0.04){#1}
-              \esegment}
-\def\Ltext #1{\bsegment
-                \textref h:R v:C \htext (-0.04 0){#1}
-              \esegment}
-\def\bdot {\fcir f:0 r:0.0133 }
-\def\vtick {\bsegment
-              \move (0 -0.05) \lvec (0  0.05)
-            \esegment}
-\def\htick {\bsegment
-              \move (-0.05 0) \lvec ( 0.05 0)
-            \esegment}
-\def\Hlen #1#2{\bsegment
-                 \vtick \avec ({#1} 0) \vtick \avec (0 0)
-                 \relsegscale 0.5
-                 \move ({#1} 0) \Ttext {#2}
-               \esegment}
-\def\Vlen #1#2{\bsegment
-                 \htick \avec (0 {#1}) \htick \avec (0 0)
-                 \relsegscale 0.5
-                 \move (0 {#1}) \Ltext {#2}
-               \esegment}
-
-\lcir r:1                         % circle
-\move (-1.05 0) \lvec ( 1.05 0)   % axes
-\move (0 -1.05) \lvec (0  1.05)
-
-\move (0 0) \lvec (0.707 0.707) \bdot
-\rmove (0.02 0.02) \textref h:L v:B \htext {X}
-\move (0.707 -0.707) \bdot
-\textref h:R v:T \htext(-0.02 -0.02){O}
-
-\move (0.5 0)                     % center of ellipse
-\bsegment
-  \lellip rx:0.435 ry:0.804
-  \bdot \Btext {$\beta_2$}
-  \move (0 0.15) \Hlen {0.435}{$|\beta_1{+}\beta_3|$}
-  \move (-0.7 0) \Vlen {0.804}{$|\beta_1{-}\beta_3|$}
-\esegment
-}
-
-\bye
diff --git a/Master/texmf-dist/doc/support/texdraw/txi-src.tgz b/Master/texmf-dist/doc/support/texdraw/txi-src.tgz
new file mode 100644
index 00000000000..dc6fce03146
--- /dev/null
+++ b/Master/texmf-dist/doc/support/texdraw/txi-src.tgz