xdvi
is a program which runs under the X window system. It is used to preview
dvi
files, such as are produced by
tex(1).
This program has the capability of showing the file shrunken by various
(integer) factors, and also has a ``magnifying glass'' which allows one
to see a small part of the unshrunk image momentarily.
Before displaying any page or part thereof, it checks to see if the
dvi
file has changed since the last time it was displayed. If this is the case,
then
xdvi
will reinitialize itself for the new
dvi
file. For this reason, exposing parts of the
xdvi
window while TeX is running should be avoided. This feature allows you
to preview many versions of the same file while running
xdvi
only once.
In addition to using keystrokes to move within the file,
xdvi
provides buttons on the right side of the window, which are synonymous
with various sequences of keystrokes.
xdvi
can show PostScript<tm> specials by any of three methods.
It will try first to use Display PostScript<tm>, then NeWS, then it
will try to use Ghostscript to render the images. All of these options
depend on additional software to work properly; moreover, some of them
may not be compiled into this copy of
xdvi.
For performance reasons,
xdvi
does not render PostScript specials in the magnifying glass.
If
dvi_file
is not specified, a file-selection widget is popped up for you to choose the
dvi
file.
OPTIONS
In addition to specifying the
dvi
file (with or without the
.dvi
extension),
xdvi
supports the following command line options. If the option begins with a
`+'
instead of a
`-',
the option is restored to its default value. By default, these options can
be set via the resource names given in parentheses in the description of
each option.
+page
Specifies the first page to show. If
+
is given without a number, the last page is assumed; the first page is
the default.
-allowshell
(.allowShell)
This option enables the shell escape in PostScript specials.
(For security reasons, shell escapes are disabled by default.)
This option should be rarely used; in particular it should not be used just
to uncompress files: that function is done automatically if the file name
ends in
.Z,
.gz,
or
.bz2
Shell escapes are always turned off if the
-safer
option is used.
-altfont font
(.altFont)
Declares a default font to use when the font in the
dvi
file cannot be found. This is useful, for example, with PostScript <tm> fonts.
-background color
(.background)
Determines the color of the background. Same as
-bg.
-base base URL
(.urlBase)
Sets the base URL value that external links given in the
dvi
file are assumed relative to - normally this should be the URL
of the document itself (?).
-bd color
(.borderColor)
Determines the color of the window border.
-bg color
(.background)
Determines the color of the background.
-bordercolor color
Same as
-bd.
-borderwidth width
(.borderWidth)
Specifies the width of the border of the window. Same as
-bw.
-browser WWWbrowser
(.wwwBrowser)
Defines the World Wide Web browser to be used to handle external URL's,
for example mosaic. If neither the command-line option nor the X
resource are set, uses the environment variable WWWBROWSER.
-bw width
(.borderWidth)
Specifies the width of the border of the window.
-copy
(.copy)
Always use the
copy
operation when writing characters to the display.
This option may be necessary for correct operation on a color display, but
overstrike characters will be incorrect.
If greyscale anti-aliasing is in use, the
-copy
operation will disable the use of colorplanes and make overstrikes come
out incorrectly.
See also
-thorough.
-cr color
(.cursorColor)
Determines the color of the cursor. The default is the color of the page
border.
-debug bitmask
(.debugLevel)
If nonzero, prints additional information on standard output. The
number is taken as a set of independent bits. The meaning of each bit
follows. 1=bitmaps; 2=dvi translation; 4=pk reading; 8=batch
operation; 16=events; 32=file opening; 64=PostScript communication;
128=Kpathsea stat(2) calls; 256=Kpathsea hash table lookups; 512=Kpathsea
path definitions; 1024=Kpathsea path expansion; 2048=Kpathsea searches.
To trace everything having to do with file searching and opening, use 4000.
Some of these debugging options are actually provided by Kpathsea.
See the Debugging section in the Kpathsea manual.
-density density
(.densityPercent)
Determines the density used when shrinking bitmaps for fonts.
A higher value produces a lighter font. The default value is 40.
If greyscaling is in use this argument does not apply; use
-gamma
instead.
See also the
`S'.
keystroke.
Same as
-S
-display host:display
Specifies the host and screen to be used for displaying the
dvi
file. By default this is obtained from the environment variable
DISPLAY.
-expert
(.expert)
Prevent the buttons from appearing. See also the
`x'
keystroke.
-fg color
(.foreground)
Determines the color of the text (foreground).
-foreground color
Same as
-fg.
-font font
(*font)
Sets the font for use in the buttons.
-gamma gamma
(.gamma)
Controls the interpolation of colors in the greyscale anti-aliasing color
palette. Default value is 1.0. For 0 <
gamma
< 1, the fonts will be lighter (more like the background), and for
gamma
> 1, the fonts will be darker (more like the foreground). Negative
values behave the same way, but use a slightly different algorithm.
For color and greyscale displays; for monochrome, see
-density.
See also the
`S'
keystroke
-grid1 color
(.grid1Color)
Determines the color of level 1 grid (default as foreground)
-grid2 color
(.grid2Color)
Determines the color of level 2 grid (default as foreground)
-grid3 color
(.grid3Color)
Determines the color of level 3 grid (default as foreground)
-geometry geometry
(*geometry)
Specifies the initial geometry of the window.
-gspalette palette
(.palette)
Specifies the palette to be used when using Ghostscript for rendering
PostScript specials. Possible values are
Color,
Greyscale,
and
Monochrome.
The default is
Color.
-gsalpha
(.gsAlpha)
Causes
Ghostscript
to be called with the
x11alpha
driver instead of the
x11
driver. The
x11alpha
driver enables anti-aliasing in PostScript figures, for a nicer appearance.
It is available on newer versions of
Ghostscript.
This option can also be toggled with the
`V'
keystroke.
-hl color
(.highlight)
Determines the color of the page border. The default is the foreground color.
-hush
(.Hush)
Causes
xdvi
to suppress all suppressible warnings.
-hushchars
(.hushLostChars)
Causes
xdvi
to suppress warnings about references to characters which are not defined
in the font.
-hushchecksums
(.hushChecksums)
Causes
xdvi
to suppress warnings about checksum mismatches between the
dvi
file and the font file.
-hushspecials
(.hushSpecials)
Causes
xdvi
to suppress warnings about
\special
strings that it cannot process.
-icongeometry geometry
(.iconGeometry)
Specifies the initial position for the icon.
-iconic
(.iconic)
Causes the
xdvi
window to start in the iconic state. The default is to start with the
window open.
-install
(.install)
If
xdvi
is running under a
PseudoColor
visual, then (by default) it will check for
TrueColor
visuals with more bits per pixel, and switch to such a visual if one exists.
If no such visual exists, it will use the current visual and colormap. If
-install
is selected, however, it will still use a
TrueColor
visual with a greater depth, if one is available; otherwise, it will
install its own colormap on the current visual. If the current visual is not
PseudoColor,
then
xdvi
will not switch the visual or colormap, regardless of its options.
The default value of the
install
resource is the special value,
maybe.
There is no
+install
option. See also
-noinstall,
and the GREYSCALING AND COLORMAPS section.
-interpreter filename
(.interpreter)
Use
filename
as the Ghostscript interpreter. By default it uses
gs.
-keep
(.keepPosition)
Sets a flag to indicate that
xdvi
should not move to the home position when moving to a new page. See also the
`k'
keystroke.
-l
(.listFonts)
Causes the names of the fonts used to be listed.
-margins dimen
(.Margin)
Specifies the size of both the top margin and side margin.
This determines the ``home'' position of the page within the window as
follows. If the entire page fits in the window, then the margin settings
are ignored. If, even after removing the margins from the left, right,
top, and bottom, the page still cannot fit in the window, then the page
is put in the window such that the top and left margins are hidden, and
presumably the upper left-hand corner of the text on the page will be
in the upper left-hand corner of the window.
Otherwise, the text is centered in the window.
The dimension should be a decimal number optionally followed by
any of the two-letter abbreviations for units accepted by TeX
(pt,
pc,
in,
bp,
cm,
mm,
dd,
cc,
or
sp).
By default, the unit will be
cm (centimeters).
See also
-sidemargin, -topmargin,
and the keystroke
`M.'
-mfmode mode-def
(.mfMode)
Specifies a
mode-def
string, which can be used in searching for fonts (see ENVIRONMENT, below).
Generally, when changing the
mode-def,
it is also necessary to change the font size to the appropriate value
for that mode. This is done by adding a colon and the value in dots per inch;
for example,
-mfmode ljfour:600.
This method overrides any value given by the
pixelsPerInch
resource or the
-p
command-line argument.
The metafont mode is also passed to
metafont
during automatic creation of fonts.
By default, it is
unspecified.
-mgs size
Same as
-mgs1.
-mgs[n] size
(.magnifierSize[n])
Specifies the size of the window to be used for the ``magnifying glass''
for Button
n.
The size may be given as an integer (indicating that the magnifying glass
is to be square), or it may be given in the form
widthxheight.
See the MOUSE ACTIONS section. Defaults are 200x150, 400x250, 700x500,
1000x800, and 1200x1200.
-noghostscript
(.ghostscript)
Inhibits the use of Ghostscript for displaying PostScript<tm> specials.
(For this option, the logic of the corresponding resource is reversed:
-noghostscript
corresponds to
ghostscript:off;
+noghostscript
to
ghostscript:on.)
-nogrey
(.grey)
Turns off the use of greyscale anti-aliasing when printing shrunken bitmaps.
(For this option, the logic of the corresponding resource is reversed:
-nogrey
corresponds to
grey:off;
+nogrey
to
grey:on.)
See also the
`G'
keystroke.
-nogssafer
(.gsSafer)
Normally, if Ghostscript is used to render PostScript specials, the Ghostscript
interpreter is run with the option
-dSAFER.
The
-nogssafer
option runs Ghostscript without
-dSAFER.
The
-dSAFER
option in Ghostscript disables PostScript operators such as
deletefile,
to prevent possibly malicious PostScript programs from having any effect.
If the
-safer
option is specified, then this option has no effect; in that case Ghostscript
is always run with
-dSAFER.
(For the
-nogssafer
option, the logic of the corresponding resource is reversed:
-nogssafer
corresponds to
gsSafer:off;
+nogssafer
to
gsSafer:on.)
-noinstall
(.install)
Inhibit the default behavior of switching to a
TrueColor
visual if one is available with more bits per pixel than the current visual.
This option corresponds to a resource of
install:off.
There is no
+noinstall
option. See also
-install,
and the GREYSCALING AND COLORMAPS section.
-nomakepk
(.makePk)
Turns off automatic generation of font files that cannot be found by other
means.
(For this option, the logic of the corresponding resource is reversed:
-nomakepk
corresponds to
makePk:off;
+nomakepk
to
makePK:on.)
-nopostscript
(.postscript)
Turns off rendering of PostScript<tm> specials. Bounding boxes, if known,
will be displayed instead. This option can also be toggled with the
`v'
keystroke.
(For this option, the logic of the corresponding resource is reversed:
-nopostscript
corresponds to
postscript:off;
+postscript
to
postscript:on.)
-noscan
(.prescan)
Normally, when PostScript<tm> is turned on,
xdvi
will do a preliminary scan of the
dvi
file, in order to send any necessary header files before sending the
PostScript code that requires them. This option turns off such prescanning.
(It will be automatically be turned back on if
xdvi
detects any specials that require headers.) (For the
-noscan
option, the logic of the corresponding resource is reversed:
-noscan
corresponds to
prescan:off;
+noscan
to
prescan:on.)
-offsets dimen
(.Offset)
Specifies the size of both the horizontal and vertical offsets of the
output on the page. By decree of the Stanford TeX Project,
the default TeX page origin is always 1 inch over and down from
the top-left page corner, even when non-American paper sizes are used.
Therefore, the default offsets are 1.0 inch.
The argument
dimen
should be a decimal number optionally followed by any of the two-letter
abbreviations for units accepted by TeX
(pt,
pc,
in,
bp,
cm,
mm,
dd,
cc,
or
sp).
By default, the unit will be
cm (centimeters).
See also
-xoffset
and
-yoffset.
-p pixels
(.pixelsPerInch)
Defines the size of the fonts to use, in pixels per inch. The
default value is 600. This option is provided only for backwards
compatibility; the preferred way of setting the font size is by setting the
Metafont mode at the same time; see the
-mfmode
option.
-paper papertype
(.paper)
Specifies the size of the printed page. This may be of the form
widthxheight optionally followed by a unit, where
width
and
height
are decimal numbers giving the width and height of the paper, respectively,
and the unit is any of the two-letter abbreviations for units accepted
by TeX
(pt,
pc,
in,
bp,
cm,
mm,
dd,
cc,
or
sp).
By default, the unit will be
cm (centimeters).
There are also synonyms which may be used:
us
(8.5x11in),
usr
(11x8.5in),
legal
(8.5x14in),
foolscap
(13.5x17in),
as well as the ISO sizes
a1-a7,
b1-b7,
c1-c7,
a1r-a7r
(a1-a7
rotated), etc. The default size is 21 x 29.7 cm (A4 size).
-rv
(.reverseVideo)
Causes the page to be displayed with white characters on a black background,
instead of vice versa.
-s shrink
(.shrinkFactor)
Defines the initial shrink factor. The default value is 8. If
shrink
is given as 0, then the initial shrink factor is computed so that the
page fits within the window (as if the `s' keystroke were given without
a number).
-S density
(.densityPercent)
Same as
-density,
q.v.
-safer
(.safer)
This option turns on all available security options; it is designed for use when
xdvi
is called by a browser that obtains a
dvi
or TeX file from another site.
In the present case, this option selects
+nogssafer
and
+allowshell.
-shrinkbuttonn shrink
(.shrinkButtonn)
Specifies that the
nth
button changing shrink factors shall change to shrink factor
factor.
This is not very usefull in the normal run of things. xdvik scales the
scaling factors according to resolution (currently 300dpi and 600dpi).
Here
n
may be a number from 1 to 4. Typical
factors
are powers of 2.
-sidemargin dimen
(.sideMargin)
Specifies the side margin (see
-margins).
-thorough
(.thorough)
xdvi
will usually try to ensure that overstrike characters
(e.g.,
\notin)
are printed correctly. On monochrome displays, this is always possible
with one logical operation, either
and
or
or.
On color displays, however, this may take two operations, one to set the
appropriate bits and one to clear other bits. If this is the case, then
by default
xdvi
will instead use the
copy
operation, which does not handle overstriking correctly. The
-thorough
option chooses the slower but more correct choice. See also
-copy.
-topmargin dimen
(.topMargin)
Specifies the top and bottom margins (see
-margins).
-underlink
(.underLink)
Underline links. Default is true.
-version
Print information on the version of
xdvi.
-warnspecials
(.warnSpecials)
Causes
xdvi
to issue warnings about
\special
strings that it cannot process.
-xoffset dimen
(.xOffset)
Specifies the size of the horizontal offset of the output on the page. See
-offsets.
-yoffset dimen
(.yOffset)
Specifies the size of the vertical offset of the output on the page. See
-offsets.
KEYSTROKES
xdvi
recognizes the following keystrokes when typed in its window.
Each may optionally be preceded by a (positive or negative) number, whose
interpretation will depend on the particular keystroke.
Also, the ``Help'', ``Home'', ``Prior'', ``Next'', and arrow cursor keys
are synonyms for
`?',
`^',
`b',
`f',
`l',
`r',
`u',
and
`d'
keys, respectively.
q
Quits the program. Control-C and control-D will do this, too.
Q
Quits the program with exit status 2.
n
Moves to the next page (or to the
nth
next page if a number is given). Synonyms are
`f',
Space, Return, and Line Feed.
p
Moves to the previous page (or back
n
pages). Synonyms are
`b',
control-H, and Delete.
g
Moves to the page with the given number. Initially, the first page is assumed
to be page number 1, but this can be changed with the
`P'
keystroke, below. If no page number is given, then it goes to the last page.
P
``This is page number
n.''
This can be used to make the
`g'
keystroke refer to actual page numbers instead of absolute page numbers.
Control-L
Redisplays the current page.
^
Move to the ``home'' position of the page. This is normally the upper
left-hand corner of the page, depending on the margins as described in the
-margins
option, above.
u
Moves up two thirds of a window-full.
d
Moves down two thirds of a window-full.
l
Moves left two thirds of a window-full.
r
Moves right two thirds of a window-full.
c
Moves the page so that the point currently beneath the cursor is moved to
the middle of the window. It also (gasp!) warps the cursor to the same place.
M
Sets the margins so that the point currently under the cursor is the upper
left-hand corner of the text in the page. Note that this command itself does
not move the image at all. For details on how the margins are used, see
the
-margins
option.
s
Changes the shrink factor to the given number. If no number is given, the
smallest factor that makes the entire page fit in the window will be used.
(Margins are ignored in this computation.)
S
Sets the density factor to be used when shrinking bitmaps. This should
be a number between 0 and 100; higher numbers produce lighter characters.
If greyscaling mode is in effect, this changes the value of gamma instead.
The new value of gamma is the given number divided by 100; negative values
are allowed.
t
Toggles to the next unit in a sorted list of TeX dimension
units for the popup magnifier ruler.
R
Forces the
dvi
file to be reread. This allows you to preview many versions of the same
file while running
xdvi
only once.
k
Normally when
xdvi
switches pages, it moves to the home position as well. The
`k'
keystroke toggles a `keep-position' flag which, when set, will keep
the same position when moving between pages. Also
`0k'
and
`1k'
clear and set this flag, respectively. See also the
-keep
option.
x
Toggles expert mode (in which the buttons do not appear). Also
`0x'
and
`1x'
clear and reset this mode, respectively. See also the
-expert
option.
G
This key toggles the use of greyscale anti-aliasing for displaying shrunken
bitmaps. In addition, the key sequences
`0G'
and
`1G'
clear and set this flag, respectively. See also the
-nogrey
option.
If given a numeric argument that is not 0 or 1, greyscale anti-aliasing is
turned on, and the gamma resource is set to the value divided by
100. E.g.,
`150G'
turns on greyscale and sets gamma to 1.5.
D
This key toggles the use of grid over the document.
If no number is given, the grid mode toggles.
By prepending number, 3 grid levels can be set.
The grid in each level is drawn in the colour specified.
See also the
-grid1, -grid2,
and
-grid3
options.
v
This key toggles the rendering of PostScript<tm> specials. If rendering
is turned off, then bounding boxes are displayed when available.
In addition the key sequences
`0v'
and
`1v'
clear and set this flag, respectively. See also the
-nopostscript
option.
V
This key toggles tha anti-aliasing of PostScript<tm> specials when
Ghostscript
is used as renderer. In addition the key sequences
`0V'
and
`1V'
clear and set this flag, See also the
+.B -gsalpha
option.
F
Read a new
dvi
file. A file-selection widget is popped up for you to choose the dvi
file from.
MOUSE ACTIONS
If the shrink factor is set to any number other than one, then clicking
mouse button 3
will pop up a ``magnifying glass'' which shows the unshrunk
image in the vicinity of the mouse click. This subwindow disappears when
the mouse button is released. Different mouse buttons produce different sized
windows, as indicated by the
-mgs
option. Moving the cursor while holding the button down will move the
magnifying glass.
If the cursor is on a hypertext link (underlined by default), then
that link overrides the magnifying glass for Buttons 1 and 2.
If Button 1 is clicked over a link, then
xdvi
jumps to the target in the current window. If Button 2 is clicked over a link,
then
xdvi
opens a new window on the target.
More precisely, for internal links, Button 1 jumps in the same window to
the link, while Button 2 starts up a new
xdvi
on the link. For external links to
dvi
files, Button 1 changes the current
xdvi
to be reading that file, while Button 2 starts a new
xdvi
on that file. For other file types,
mime.types
and
mailcap
are parsed to determine the viewer; finally, if no suitable
mailcap
entry was found, if the
WWWBROWSER
environment variable is set, or
-browser
was specified on the command line, it is started up on the file.
The scrollbars (if present) behave in the standard way: pushing Button 2
in a scrollbar moves the top or left edge of the scrollbar to that point
and optionally drags it;
pushing Button 1 moves the image up or right by an amount equal to the distance
from the button press to the upper left-hand corner of the window; pushing
Button 3 moves the image down or left by the same amount.
SIGNALS
When
xdvi
receives a
SIGUSR1
signal, it rereads the
dvi
file.
GREYSCALING AND COLORMAPS
The greyscale anti-aliasing feature in
xdvi
will not work at its best if the display does not have enough colors available.
This can happen if other applications are using most of the colormap
(even if they are iconified). If this occurs, then
xdvi
will print an error message and turn on the
-copy
option. This will result in overstrike characters appearing wrong;
it may also result in poor display quality if the number of available
colors is very small.
Typically this problem occurs on displays that allocate eight bits
of video memory per pixel. To see how many bits per pixel your display
uses, type
xwininfo
in an
xterm
window, and then click the mouse on the root window when asked. The
``Depth:'' entry will tell you how many bits are allocated per pixel.
Displays using at least 15 bits per pixel are typically
TrueColor
visuals, which do not have this problem, since their colormap is
permanently allocated and available to all applications. (The visual
class is also displayed by
xwininfo.)
For more information on visual classes see the documentation for the
X Window System.
To alleviate this problem, therefore, one may (a) run with more bits
per pixel (this may require adding more video memory or replacing the video
card), (b) shut down other applications that may be using much of the colormap
and then restart
xdvi,
or (c) run
xdvi
with the
-install
option.
One application which is often the cause of this problem is
Netscape.
In this case there are two more alternatives to remedying the situation.
One can run
``netscape -install''
to cause
Netscape
to install a private colormap. This can cause colors to change in
bizarre ways when the mouse is moved to a different window.
Or, one can run
``netscape -ncols 220''
to limit
Netscape
to a smaller number of colors. A smaller number will ensure that
other applications have more colors available, but will degrade the
color quality in the
Netscape
window.
ENVIRONMENT
Please see the
kpathsea
documentation.
HANDLING OF POSTSCRIPT FIGURES
xdvi
can display PostScript files included in the
dvi
file. Such files are first searched for in the directory where the
dvi
file is, and then using normal
Kpathsea
rules. There is an exception to this, however: if the file name begins
with a backtick
(`),
then the remaining characters in the file name give a shell command (often
zcat)
which is executed; its standard output is then sent to be interpreted as
PostScript. Note that there is some potential for security problems here;
see the
-allowshell
command-line option. It is better to use compressed files directly (see below).
If a file name is given (as opposed to a shell command),
if that file name ends in
``.Z'',
``.gz'',
or
``.bz2''
and if the first two bytes of the file indicate that it was compressed with
compress(1),
gzip(1),
or
bzip2(1)
respectively, then the file is first uncompressed with
uncompress -c,
gunzip -c,
or
bunzip2 -c,
respectively. This is preferred over using a backtick to call the command
directly, since you do not have to specify
-allowshell
and since it allows for path searching.
ENVIRONMENT
xdvik
uses the same environment variables and algorithms for finding
font files as TeX and friends. See the documentation for the
Kpathsea
library for details (repeating it here is too cumbersome). In addition,
xdvik
accepts the following variables:
DISPLAY
Specifies which graphics display terminal to use.
KPATHSEA_DEBUG
Trace
Kpathsea
lookups; set it to
-1
for complete tracing.
MIMELIBDIR
Directory containing the
mime.types
file, if
~/.mime-types
does not exist.
MAILCAPDIR
Directory containing the
.mailcap
file, if
~/.mailcap
does not exist.
WWWBROWSER
The browser used to open URL's, if neither the
-browser
option nor the
.wwwBrowser
resource are set. For more information on hyper-TeX support,
see the `Hypertext' node in the
dvipsk
manual.
TMPDIR
The directory to use for storing temporary files created when uncompressing
PostScript files.
LIMITATIONS
xdvi
accepts many but not all types of PostScript specials accepted by
dvips.
For example, it accepts most specials generated by
epsf
and
psfig,
It does not, however, support
bop-hook
or
eop-hook,
nor does it allow PostScript commands to affect the rendering of things that
are not PostScript (for example, the ``NEAT'' and rotated ``A'' examples in the
dvips
manual). These restrictions are due to the design of
xdvi;
in all likelihood they will always remain.
LaTeX2e color and rotation specials are not currently supported.
FILES
Please see the kpathsea documentation.
COPYRIGHTS
xdvi
itself is Copyrighted by Paul Vojta and distributed under the X-Consortium
license.
xdvi
uses the
libwww
library of the World Wide Web Consortium, which includes computer software
creaded and made available by CERN. It also uses the
kpathsea
library which is distributed under the GNU LIBRARY General Public License.
THIS SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL PAUL VOJTA OR ANY OTHERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Eric Cooper, CMU, did a version for direct output to a QVSS. Modified
for X by Bob Scheifler, MIT Laboratory for Computer Science. Modified
for X11 by Mark Eichin, MIT SIPB. +Additional enhancements by many
others. The current maintainer of the original
xdvi
is Paul Vojta, U.C. Berkeley; the maintainer of the
xdvik
variant is Nicolai Langfeldt, Dept. of Math, UiO, Norway, with the help
of many others.
