[Exist-commits] eXist-1.0/src/org/exist/xquery/parser XQuery.g,1.11,1.12

[Wolfgang M. M. <wol...@us...>]

Update of /cvsroot/exist/eXist-1.0/src/org/exist/xquery/parser
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv10235/src/org/exist/xquery/parser

Modified Files:
	XQuery.g 
Log Message:
Added support for "instance of" operator.

Index: XQuery.g
===================================================================
RCS file: /cvsroot/exist/eXist-1.0/src/org/exist/xquery/parser/XQuery.g,v
retrieving revision 1.11
retrieving revision 1.12
diff -C2 -d -r1.11 -r1.12
*** XQuery.g	19 May 2004 08:18:50 -0000	1.11
--- XQuery.g	18 Jun 2004 12:06:51 -0000	1.12
***************
*** 334,340 ****
  andExpr
  :
! 	castExpr ( "and"^ castExpr )*
  	;
  
  castExpr
  :
--- 334,345 ----
  andExpr
  :
! 	instanceofExpr ( "and"^ instanceofExpr )*
  	;
  
+ instanceofExpr
+ :
+ 	castExpr ( "instance"^ "of"! sequenceType )?
+ 	;
+ 	
  castExpr
  :
***************
*** 913,916 ****
--- 918,925 ----
  	|
  	"return" { name = "return"; }
+ 	|
+ 	"instance" { name = "instance"; }
+ 	|
+ 	"of" { name = "of"; }
  	;
  
***************
*** 1541,1544 ****
--- 1550,1567 ----
  	|
  	#(
+ 		"instance"
+ 		{ 
+ 			PathExpr expr = new PathExpr(context);
+ 			SequenceType type= new SequenceType(); 
+ 		}
+ 		step=expr [expr]
+ 		sequenceType [type]
+ 		{ 
+ 			step = new InstanceOfExpression(context, expr, type); 
+ 			path.add(step);
+ 		}
+ 	)
+ 	|
+ 	#(
  		"or"
  		{