printer

UNIX下FILE命令的实现源码

#------------------------------------------------------------------------------
# printer:  file(1) magic for printer-formatted files
#

# PostScript, updated by Daniel Quinlan ([e-mail])
0	string		%!		PostScript document text
>2	string		PS-Adobe-	conforming
>>11	string		>\0		at level %.3s
>>>15	string		EPS		- type %s
>>>15	string		Query		- type %s
>>>15	string		ExitServer	- type %s
# Some PCs have the annoying habit of adding a ^D as a document separator
0	string		\004%!		PostScript document text
>3	string		PS-Adobe-	conforming
>>12	string		>\0		at level %.3s
>>>16	string		EPS		- type %s
>>>16	string		Query		- type %s
>>>16	string		ExitServer	- type %s
0	string		\033%-12345X%!PS	PostScript document


# DOS EPS Binary File Header
# From: Ed Sznyter <[e-mail]>
0       belong          0xC5D0D3C6      DOS EPS Binary File
>4      long            >0              Postscript starts at byte %d
>>8     long            >0              length %d
>>>12   long            >0              Metafile starts at byte %d
>>>>16  long            >0              length %d
>>>20   long            >0              TIFF starts at byte %d
>>>>24  long            >0              length %d

# Adobe's PostScript Printer Description (PPD) files
#       Yves Arrouye <[e-mail]>
#
0      string          *PPD-Adobe:    PPD file
>13    string          x              \b, ve

# HP Printer Job Language
0	string		\033%-12345X@PJL	HP Printer Job Language data
# HP Printer Job Language
# The header found on Win95 HP plot files is the "Silliest Thing possible" 
# (TM)
# Every driver puts the language at some random position, with random case
# (LANGUAGE and Language)
# For example the LaserJet 5L driver puts the "PJL ENTER LANGUAGE" in line 10
# From: Uwe Bonnes <[e-mail]>
# 
0	string		\033%-12345X@PJL	HP Printer Job Language data
>&0	string		>\0			%s			
>>&0	string		>\0			%s			
>>>&0	string		>\0			%s		
>>>>&0	string		>\0			%s		
#>15	string		\ ENTER\ LANGUAGE\ =
#>31	string		PostScript		PostScript

# HP Printer Control Language, Daniel Quinlan ([e-mail])
0	string		\033E\033	HP PCL printer data
>3	string		\&l0A		- default page size
>3	string		\&l1A		- US executive page size
>3	string		\&l2A		- US letter page size
>3	string		\&l3A		- US legal page size
>3	string		\&l26A		- A4 page size
>3	string		\&l80A		- Monarch envelope size
>3	string		\&l81A		- No. 10 envelope size
>3	string		\&l90A		- Intl. DL envelope size
>3	string		\&l91A		- Intl. C5 envelope size
>3	string		\&l100A		- Intl. B5 envelope size
>3	string		\&l-81A		- No. 10 envelope size (landscape)
>3	string		\&l-90A		- Intl. DL envelope size (landscape)

# IMAGEN printer-ready files:
0	string	@document(		Imagen printer
# this only works if "language xxx" is first item in Imagen header.
>10	string	language\ impress	(imPRESS data)
>10	string	language\ daisy		(daisywheel text)
>10	string	language\ diablo	(daisywheel text)
>10	string	language\ printer	(line printer emulation)
>10	string	language\ tektronix	(Tektronix 4014 emulation)
# Add any other languages that your Imagen uses - remember
# to keep the word `text' if the file is human-readable.
# [GRR 950115:  missing "postscript" or "ultrascript" (whatever it was called)]
#
# Now magic for IMAGEN font files...
0	string		Rast		RST-format raster font data
>45	string		>0		face %
# From Jukka Ukkonen
0	string		\033[K\002\0\0\017\033(a\001\0\001\033(g	Canon Bubble Jet BJC formatted data