/* Example:
/pls/;
/ {
  p = "hello";
  q = &label;
  label: a {
    r = 23;
  }
}
*/
root:
	v='/pls/' ';'
	
	'/' '{'
		properties+=property*
		node+=Node*
	'}'
;

Node:
	(label=Label)? name=IDS
	'{'
	    properties+=property*
		nodes+=Node*
	'}'
;

property:
	name=IDS '=' (startLabel=Label)? (value=STRING | literal=Literal | ref=Reference) (endLabel=Label)? ';'
;

Label hidden():
	name=IDS ':'
;

Reference hidden():
	'&' label=[Label|IDS]
;


Literal returns ecore::ELong hidden():
	('0x'|'0X')?
	(
		'a'|'b'|'c'|'d'|'e'|'f'|
		'A'|'B'|'C'|'D'|'E'|'F'|
		'0'|'1'|'2'|'3'|'4'|'5'|'6'|'7'|'8'|'9'
	)+
;

IDS returns ecore::EString hidden():
	(
		'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'|
		'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'|
		'0'|'1'|'2'|'3'|'4'|'5'|'6'|'7'|'8'|'9'|','|'.'|'_'|'+'|'*'|'#'|'?'|'-'
	)+
;

// Terminals
terminal STRING	: 
	'"' ( '\\' . /* 'b'|'t'|'n'|'f'|'r'|'u'|'"'|"'"|'\\' */ | !('\\'|'"') )* '"'
;

terminal ML_COMMENT	:
	'/*' -> '*/'
;

terminal WS:
	(' '|'\t'|'\r'|'\n')+

grammar org.xtext.example.sdt.SysDefTree hidden(ML_COMMENT, WS)
generate sysDefTree "http://www.xtext.org/example/sdt/SysDefTree"
import "http://www.eclipse.org/emf/2002/Ecore" as ecore

Property hidden():
	name=Identifier WS* '=' WS* (startLabel=Label WS*)? (value=STRING | literal=Literal | ref=Reference) (WS+ endLabel=Label)? WS* ';' WS*
;

ByteValue:
	{ByteValue}
	(l1=Label)? '[' (byteSequences+=ByteSequence)* ']' (l2=Label)?
;
ByteSequence:
	bytes+=Bytes
;
Bytes returns custom::EIntegerArray hidden():
	(DIGIT | HEX_DIGIT)+
;