troff

UNIX下FILE命令的实现源码

#------------------------------------------------------------------------------
# troff:  file(1) magic for *roff
#
# updated by Daniel Quinlan ([e-mail])

# troff input
0	string		.\\"		troff or preprocessor input text
0	string		'\\"		troff or preprocessor input text
0	string		'.\\"		troff or preprocessor input text
0	string		\\"		troff or preprocessor input text

# ditroff intermediate output text
0	string		x\ T		ditroff output text
>4	string		cat		for the C/A/T phototypesetter
>4	string		ps		for PostScript
>4	string		dvi		for DVI
>4	string		ascii		for ASCII
>4	string		lj4		for LaserJet 4
>4	string		latin1		for ISO 8859-1 (Latin 1)
>4	string		X75		for xditview at 75dpi
>>7	string		-12		(12pt)
>4	string		X100		for xditview at 100dpi
>>8	string		-12		(12pt)

# output data formats
0	string		\100\357	very old (C/A/T) troff output data