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NAME
ivd2dvi - convert a dvi-ivd file to a normal dvi file
SYNOPSIS
ivd2dvi [-Xv] [-b buffersize] [filename]
DESCRIPTION
An extension to TeX called TeX-XeT produces "dvi-ivd" files, which
are similar to dvi files but include nonstandard commands calling
for the "reflection" (horizontal reversal) of text. In general,
dvi-ivd files cannot be processed by standard dvi drivers because
the reflection commands are not recognized. ivd2dvi converts a
dvi-ivd file to an equivalent dvi file, that is, to a file in which
the necessary reflections are carried out using only standard dvi
commands. The resulting file can be processed by any dvi driver.
The dvi-ivd file to be processed is specified on the command line;
if the named file cannot be found and contains no period following
its rightmost slash, ".dvi" is appended and ivd2dvi tries again.
Unlike most dvi processors, ivd2dvi is a true filter and reads its
standard input if no file is specified. The dvi file produced by
ivd2dvi is written to standard output.
Since dvitype says only "unrecognized command!" about the reflection
commands found in dvi-ivd files, ivd2dvi also performs careful error
checking for proper use of these commands.
OPTIONS
-v Verbose mode. The number of each page is printed as it is
processed.
-b newbuffersize
Change the size of ivd2dvi's buffers. ivd2dvi uses several
internal buffers and cannot proceed if any overflows. When this
happens, you should try again using -b to increase the buffer
size. The default buffer size is 1024.
-X Exact mode. In this mode, ivd2dvi attempts to process the input
file without modification. The comment string is not updated,
NOP commands are retained, and the maximum stack depth is copied
from the input file if possible (this number is conservatively
but imprecisely computed by TeX; normally ivd2dvi will substitute
the exact value). As a result, dvi files with no reflection
commands are more likely to emerge totally unchanged. Use of
this flag is discouraged except for debugging.
ENVIRONMENT
TEXFONTS
Colon-separated list of directories to be searched for font
metric files. The default is /usr/lib/tex/fonts.
FILES
/usr/lib/tex/fonts/*.tfm Font metric files.
SEE ALSO
"Mixing right-to-left texts with left-to-right texts," Donald Knuth
and Pierre MacKay, TUGboat volume 8 (1987), number 1, pp. 14--25.
AUTHOR
Larry Denenberg, larry@bbn.com or larry@harvard.edu.
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