commands:
		e [file]		edit
		E [file]		edit non check flag
		q			quit
		Q			quit non check flag
		f [file]		filename
		u			undo
		(.,.)p			print
		(.,.)l			print with special
		(.,.)n			print with numbers
		(.,.)d			delete
		(.,.+1)j		join
		(.)kx			set mark
		(.,.)maddr     		move
		(.,.)taddr     		copy (transfer)
		(1,$)w [file]		write file
		($)r [file]		read file
		($)=			get number


short addr:
		,			1,$
		,addr			1,addr
		addr,			addr,addr
		;			.,$
		;addr			.;addr
		addr;			addr;addr


syntax:
	<command> ::= <e> | <E> | <q> | <Q> | <f> | <u>
		| <p> | <n> | <d> | <j> | <w> | <=> | <l>
		| <null> | <k> | <m> | <t>
	<e> ::= "e" | "e" " " <param>
	<E> ::= "E" | "E" " " <param>
	<q> ::= "q"
	<Q> ::= "Q"
	<f> ::= "f" | "f" " " <param>
	<u> ::= "u"
	<p> ::= "p" | <range> "p" | <arg> | "'" <letter>
	<n> ::= "n" | <range> "n"
	<d> ::= "d" | <range> "d"
	<j> ::= "j" | <range> "j"
	<t> ::= "t" <num> | <range> "t" <num>
	<m> ::= "m" <num> | <range> "m" <num>
	<w> ::= "w" | <range> "w" | <range> "w" " " <param> | "w" " " <param>
	<r> ::= "r" | <arg> "r" | <arg> "r" " " <param> | "r" " " <param>
	<=> ::= "=" | <arg> "="
	<l> ::= "l" | <range> "l"
	<k> ::= "k" <letter> | <arg> "k" <letter>
	<null> ::= ""
	<range> ::= <del>
		| <arg> <del>
		| <del> <arg>
		| <arg> <del> <arg>
		| <arg>
	<arg> ::= <num> | <spec> | <expr> | <exprspec>
	<expr> ::= <num> <opseq> | <num> <opseq> <expr>
	<exprspec> ::= <spec> <opseq> | <spec> <opseq> <expr>
	<opseq> ::= <op> | <op> <opseq>
	<op> ::= "+" | "-"
	<num> ::= <digit> <num> | <digit>
	<digit> ::=  "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9"
	<spec> ::= "$" | "."
	<del> ::= "," | ";"
	<param> ::= <noalpha> <param> | <noalpha>
	<noalpha> ::= <letter> | <Letter> | <digit>
	<letter> ::= "a" | "b" | "c" | "d" | "e" | "f" | "g" | "h" | "i" | "j" 
		| "k" | "l" | "m" | "n" | "o" | "p" | "q" | "r" | "s" | "t" 
		| "u" | "v" | "w" | "x" | "y" | "z" 
	<Letter> ::= | "A" | "B" | "C" | "D" | "E" | "F" | "G" | "H" | "I" 
		| "J" | "K" | "L" | "M" | "N"  | "O" | "P" | "Q" | "R" | "S" 
		| "T" | "U" | "V" | "W" | "X" | "Y" | "Z"

	exampla:
		,2n	1,$-1-1-1+10-1-1j	,w kek.c	4	$-1	;.p	q	,n	$,$p	$,p