2011-03-30 13:49:47 +00:00
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.TH LP 8
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.SH NAME
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lp \- PostScript preprocessors
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.SH DESCRIPTION
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These programs are part of the
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.IR lp (1)
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suite.
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Each corresponds to a
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.I process
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in the
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.BI -p process
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option of
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.I lp
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and exists as an
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.IR rc (1)
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script in
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.B /sys/lib/lp/process
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that provides an interface to a PostScript conversion program in
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.BR /$cputype/bin/aux .
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The list of processors follows;
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after each description is a bracketed list of
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.I lp
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options to which the processor responds:
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.TF \fIp9bitpos\fP
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.TP
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.I dpost
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converts
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.IR troff (1)
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output for device
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.SM post
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to PostScript.
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This is used for files troff'ed on our
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.SM UNIX
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systems that do not handle
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.SM UTF
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characters.
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.RB [ DLcimnorxy ]
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.TP
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.I dvipost
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2018-02-28 20:55:48 +00:00
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converts tex output to PostScript.
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2011-03-30 13:49:47 +00:00
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.RB [ Lcinor ]
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.TP
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.I g3post
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converts CCITT Group 3 FAX data to PostScript.
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.RB [ DLm ]
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.TP
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.I gifpost
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converts GIF image data to PostScript.
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.RB [ DLm ]
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.TP
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.I generic
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is the default processor.
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It uses
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.IR file (1)
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to determine the type of input and executes the correct
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processor for a given (input, printer) pair.
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.TP
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.I hpost
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adds a header page to the beginning of a PostScript printer
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job so that it may be separated from other jobs in the output bin.
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The header has the image of the job's owner from the directory of faces (see
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.IR face (6)).
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Page reversal is also done in this processor.
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.TP
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.I jpgpost
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converts JPEG image data to PostScript.
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.RB [ DLm ]
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.TP
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.I noproc
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passes files through untouched.
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.TP
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.I p9bitpost
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.na
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converts a Plan 9 image to PostScript, such as
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.B /dev/screen
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for the whole screen,
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.B /dev/window
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for that window's data,
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and
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.B /dev/wsys/.../window
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for some other window's data.
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.RB [ DLm ]
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.ad
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.TP
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.I pdfpost
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converts PDF data to PostScript.
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.TP
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.I post
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passes PostScript through, adding option patches for paper tray information.
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This does not always work with PostScript generated on other systems.
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.TP
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.I ppost
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converts
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.SM UTF
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text to PostScript.
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.RB [ DLcfilmnorxy ]
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.TP
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.I tr2post
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converts
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.IR troff (1)
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output for device
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.SM utf
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(the default) to PostScript.
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See
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.B /sys/lib/troff/font/devutf
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directory for troff font width table descriptions.
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See also the
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.B /sys/lib/postscript/troff
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directory for mappings of
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troff
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.SM UTF
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character space to PostScript
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font space.
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.RB [ DLcimnorxy ]
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.SH SOURCE
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.B /sys/src/cmd/postscript
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.SH SEE ALSO
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.IR lp (1)
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.SH BUGS
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The
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.I file
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command is not always smart enough to deal with certain file
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types.
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There are PostScript conversion programs that do not have processors to drive them.
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