# Syntax file for Troff

=Idle
=Comment	green
=Escape		magenta
=Command	bold
=Bad		red

# First character of line

:first Idle
	*		rest		noeat
	".'"		command_1

:rest Idle
	*		rest
	"\n"		first
	"\\"		escape		recolor=-1

:command_1 Command
	*		rest		noeat
	" 	"	command_1
	"a-zA-Z_"	command_2

:command_2 Command
	*		rest
	"a-zA-Z0-9_"	command_done	recolor=-1

:command_done Command
	*		rest		noeat

:escape Escape
	*		bad		recolor=-2
	"-\\e'`. 0|^&!%acdprtu{}"	rest
	"*fgn"			name
	"k"			reg
	"z"			reg
	"("			name2
	"$s"			num
	"bCDhHlLNoSvwxX"	str
	"\n"		first
	"\""		comment		recolor=-2

# A name: ( means two characters

:name Escape
	*		rest
	"("		name2

# Two character name

:name2 Escape
	*		reg

# One character name

:reg Escape
	*		rest

# String

:str Escape
	*		bad	recolor=-1
	"'"		str_body

:str_body Escape
	*		str_body
	"\n"		first
	"'"		rest

# Number

:num Escape
	*		rest	noeat
	"-+0-9"		num

:comment Comment
	*		comment
	"\n"		first

:bad Bad
	*		rest		noeat