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# JOE syntax highlight file for Perl

# Define colors

=Idle
=Preproc blue
=Comment green
=POD green
=Constant cyan
=Escape bold cyan
=Type bold
=Keyword bold
=Bad bold red
=Var yellow


:begin Idle
	*		begin noeat call=.perl()

#
# Perl as a subroutine for Mason
#

.subr perl

# Detect pod

:idle Idle
	*		idle1		noeat
.ifdef mason_line
	"\n"		idle return
.else
	"\n"		idle
.endif
	"="		pod_start

# allow keywords

:idle1 Idle
	*		idle1
	"#"		line_comment_i	recolor=-1
	"\n"		idle noeat
	"0"		first_digit	recolor=-1
	"1-9"		decimal	recolor=-1
	"."		maybe_float
	"\""		string		recolor=-1
	"'"		char		recolor=-1
	"`"		backtick	recolor=-1
	"<"		maybe_inc
	"$"		not_string	buffer
.ifdef mason_block
	"&%"		perl_maybe_done	buffer
	"-a-zA-Z_@"	ident		buffer
.else
	"/"		regex		recolor=-1
	"-a-zA-Z_@%&"	ident		buffer
.endif

:perl_maybe_done Idle
	*		ident noeat
	">"		idle1	recolor=-2 return

# prevent keywords

:rest Idle
	*		rest
	"({;~"		idle1
	"#"		line_comment	recolor=-1
	"\n"		idle noeat
	"0"		first_digit	recolor=-1
	"1-9"		decimal	recolor=-1
	"."		maybe_float
	"\""		string		recolor=-1
	"'"		char		recolor=-1
	"`"		backtick	recolor=-1
	"$"		not_string	buffer
	"<"		maybe_inc
.ifdef mason_block
	"&%"		perl_maybe_done buffer
	"a-zA-Z_@"	maybe_string	buffer
.else
	"a-zA-Z_@%&"	maybe_string	buffer
.endif

:pod_start Idle
	*		pod_start
	"\n"		pod_block

:pod_block POD
	*		pod_block
	"="		pod_ident	buffer

:pod_ident POD
	*		pod_block	noeat strings
	"=cut"		rest
done
	"a-zA-Z0-9_"	pod_ident

:maybe_inc Idle
	*		rest		noeat
.ifdef mason_block
	"/"		perl_maybe_done_2
.endif
	"<"		maybe_inc1

:perl_maybe_done_2 Idle
	*		perl_idle	noeat
	"a-z"		perl_maybe_done_2
	">"		idle


:maybe_inc1 Idle
	*		rest		noeat
	" 	"	maybe_inc1
	"'\""		quoted_inc_start	save_c recolor=-1
	"A-Za-z_"	inc		buffer noeat

:quoted_inc_start Var
	*		quoted_inc	buffer

:quoted_inc Var
	*		quoted_inc
	&		skipline	save_s

:inc Var
	*		skipline	save_s noeat
	"A-Za-z0-9_"	inc

# Should be treated as a normal line here...

:skipline Idle
	*		skipline
	"\n"		next_line

:todelim Constant
	*		todelim
	"\n"		next_line	strings
	"&"		founddelim
done

# eat \n so it's not in string.
:next_line Constant
	*		todelim		buffer
	"\n"		next_line

:founddelim Var
	*		idle		noeat

:regex Constant
	*		regex
	"\\"		regex_quote	recolor=-1
	"/"		rest

:regex_quote Escape
	*		regex

:not_string Idle
	*		rest noeat
	"A-Za-z_"	ident
	"\"'`#"		rest

:line_comment Comment
	*		line_comment
	"\n"		rest

:line_comment_i Comment
	*		line_comment_i
	"\n"		idle noeat

:end_of_file_comment Comment
	*		end_of_file_comment

:first_digit Constant
	*		rest	noeat
	"x"		hex
	"b"		binary
	"."		float
	"eE"		epart
	"0-7"		octal
	"89"		bad_number	recolor=-1

:bad_number Bad
	*		rest	noeat
	"0-9"		bad_number

:octal Constant
	*		rest	noeat
	"0-7_"		octal
	"89"		bad_number	recolor=-1

:binary Constant
	*		rest	noeat
	"01_"		binary
	"2-9"		bad_number	recolor=-1

:hex Constant
	*		rest	noeat
	"0-9A-Fa-f_"	hex

:decimal Constant
	*		rest	noeat
	"0-9_"		decimal
	"eE"		epart
	"."		float

:maybe_float Constant
	*		rest	recolor=-2	noeat
	"0-9"		float		recolor=-2

:float Constant
	*		rest	noeat
	"eE"		epart
	"0-9_"		float

:epart Constant
	*		rest	noeat
	"0-9+\-"	enum

:enum Constant
	*		rest	noeat
	"0-9_"		enum

:string	Constant
	*		string
	"\""		rest
	"\\"		string_escape	recolor=-1
	"$@"		string_subst	recolor=-1

:string_subst Escape
	*		string	noeat recolor=-1
	"a-zA-Z_0-9"	string_subst

:string_escape Escape
	*		string
	"x"		string_hex1
	"c"		string_ctrl
	"N"		string_named
	"0-7"		string_octal2
	"\n"		string		recolor=-2

:string_named Escape
	*		string
	"{"		string_named_rest

:string_named_rest Escape
	*		string_named_rest
	"}"		string

:string_ctrl Escape
	*		string

:string_hex1 Escape
	*		string		noeat
	"{"		string_unicode
	"0-9a-fA-F"	string_hex2

:string_unicode Escape
	*		string_unicode
	"}"		string

:string_hex2 Escape
	*		string		noeat
	"0-9a-fA-F"	string

:string_octal2 Escape
	*		string		noeat
	"0-7"		string_octal3

:string_octal3 Escape
	*		string		noeat
	"0-7"		string

:char Constant
	*		char
	"\n"		idle noeat
	"'"		rest
	"\\"		char_escape	recolor=-1

:char_escape	Escape
	*		char		recolor=-2
	"\\'"	char

:backtick	Constant
	*		backtick
	"`"		rest
	"\\"		backtick_escape	recolor=-1
	"$@"		backtick_subst recolor=-1

:backtick_subst Escape
	*		backtick	noeat recolor=-1
	"a-zA-Z_0-9"	backtick_subst

:backtick_escape Escape
	*		backtick
	"x"		backtick_hex1
	"c"		backtick_ctrl
	"N"		backtick_named
	"0-7"		backtick_octal2
	"\n"		backtick		recolor=-2

:backtick_named Escape
	*		backtick
	"{"		backtick_named_rest

:backtick_named_rest Escape
	*		backtick_named_rest
	"}"		backtick

:backtick_ctrl Escape
	*		backtick

:backtick_hex1 Escape
	*		backtick		noeat
	"{"		backtick_unicode
	"0-9a-fA-F"	backtick_hex2

:backtick_unicode Escape
	*		backtick_unicode
	"}"		backtick

:backtick_hex2 Escape
	*		backtick		noeat
	"0-9a-fA-F"	backtick

:backtick_octal2 Escape
	*		backtick		noeat
	"0-7"		backtick_octal3

:backtick_octal3 Escape
	*		backtick		noeat
	"0-7"		backtick

:ident	Idle
	*		rest		noeat strings
	"BEGIN"		kw
	"END"		kw
	"if"		kw
	"unless"	kw
	"while"		kw
	"until"		kw
	"foreach"	kw
	"sub"		kw
	"my"		kw
	"do"		kw
	"if"		kw
	"else"		kw
	"elsif"		kw
	"for"		kw
	"continue"	kw
	"last"		kw
	"print"		kw
	"reset"		kw
	"die"		kw
	"goto"		kw
	"require"	kw
	"use"		kw
	"eval"		kw
	"redo"		kw
	"next"		kw
	"warn"		kw
	"return"	kw
	"printf"	kw
	"close"		kw
	"package"	kw
	"m"		match
	"qr"		match
	"qq"		match
	"qx"		match
	"qw"		match
	"q"		match
	"s"		subst
	"tr"		subst
	"y"		subst
	"__END__"	end_of_file_comment
	"__DATA__"	end_of_file_comment
done
	"a-zA-Z0-9_"	ident

:maybe_string Idle
	*		rest		noeat strings
	"qr"		match
	"qq"		match
	"qx"		match
	"qw"		match
	"q"		match
done
	"a-zA-Z0-9_"	maybe_string

:type Type
	*	rest	noeat

:kw Keyword
	*	rest	noeat

:match Idle
	*		inmatch		save_c recolor=-1
	" 	"	match

:inmatch Constant
	*		inmatch
	&		rest
	"\\"		inmatch_quote	recolor=-1

:inmatch_quote Escape
	*		inmatch

:subst Idle
	*		insubst		save_c recolor=-1
	"<([{`"		delim_insubst	save_c recolor=-1
	" 	"	subst

:insubst Constant
	*		insubst
	&		inrepl
	"\\"		insubst_quote	recolor=-1

:insubst_quote Escape
	*		insubst

:inrepl Constant
	*		inrepl
	&		rest
	"\\"		inrepl_quote

:inrepl_quote Escape
	*		inrepl

:delim_insubst Constant
	*		delim_insubst
	&		delim_repl
	"\\"		delim_quote

:delim_quote Escape
	*		delim_insubst

:delim_repl Constant
	*		repl		save_c recolor=-1
	" 	"	delim_repl

:repl Constant
	*		repl
	&		rest
	"\\"		repl_quote

:repl_quote Escape
	*		repl

.end

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