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# Fancy "sed" highlighter

# Bugs: delimiter should be ignored in [...]
#
#       it would be nice if this did more correct
#       error checking for the sed programmer

-

=Idle
=Comment 	green
=String 	cyan
=Escape 	bold cyan
=Bad		red
=Keyword	bold
=Delimiter	magenta

# Zero address commands: # : }
# Zero or one address: = a i q r
# Range address: { b t c d D h H g G x l n N p P s w y

:idle Idle
	*		cmd		noeat
	" 	"	idle
	"\n"		idle
	"0-9"		first_addr	recolor=-1
	"$"		first_eof	recolor=-1
	"/"		first_regex_c	recolor=-1

:first_eof String
	*		first_addr_done	noeat

:first_regex_c Delimiter
	*		first_regex	noeat

:first_regex String
	*		first_regex
	"\\"		first_regex_quote	recolor=-1
	"/"		first_regex_e		recolor=-1

:first_regex_e Delimiter
	*		first_addr_done		noeat

:first_regex_quote Escape
	*		first_regex

:first_addr String
	*		first_addr_done	noeat
	"0-9"		first_addr

:first_addr_done Idle
	*		cmd		noeat
	","		second_addr_start

:second_addr_start Idle
	*		bad		noeat
	"0-9"		second_addr	recolor=-1
	"$"		second_eof	recolor=-1
	"/"		second_regex	recolor=-1

:second_eof String
	*		cmd		noeat

:second_regex String
	*		second_regex
	"/"		cmd

:second_addr String
	*		cmd		noeat
	"0-9"		second_addr

:bad Bad
	*		bad
	"\n"		idle

:cmd Delimiter
	*		the_cmd		noeat
	" 	"	cmd
	"!"		the_cmd

:the_cmd Idle
	*		bad		noeat
	" 	"	the_cmd
	";"		next		noeat
	"#"		comment		recolor=-1
	"sy"		accepts		recolor=-1
	"{"		accepto		recolor=-1
	"aic"		accept		recolor=-1
	"=:}rqbtdDhHgGxlnNpPw"	acceptc	recolor=-1

:accepto Keyword
	*		idle		noeat

:accept Keyword
	*		next		noeat

:acceptc Keyword
	*		nextallow	noeat

:accepts Keyword
	*		subst		noeat

:subst Delimiter
	*		subst_rest	save_c

:subst_rest String
	*		subst_rest
	&		subst_rest_2_c		recolor=-1
	"\\"		subst_rest_quote	recolor=-1

:subst_rest_quote Escape
	*		subst_rest

:subst_rest_2_c Delimiter
	*		subst_rest_2		noeat

:subst_rest_2 String
	*		subst_rest_2
	&		next_c			recolor=-1
	"\\"		subst_rest_2_quote	recolor=-1

:next_c Delimiter
	*		nextallow	noeat

:subst_rest_2_quote Escape
	*		subst_rest_2

:nextallow Idle
	*		nextallow
	"\n"		idle
	";"		idle
	"#"		comment	recolor=-1

:next Idle
	*		next
	"\n"		idle
	"\\"		continue

:continue Idle
	*		next

:comment Comment
	*		comment
	"\n"		idle