org.eclipse.m2m.atl.engine.asm.lib
Class SOTSExpression2
java.lang.Object
org.eclipse.m2m.atl.engine.asm.lib.SOTSExpression2
public class SOTSExpression2
- extends java.lang.Object
Simple query language evaluator. This is used in the present version of the compiler. Recognized grammar:
exp ::= (simpleExp '+' exp) | simpleExp | INT | STRING | ('(' exp ')')
simpleExp ::= '$' varName:IDENT ('.' propName:IDENT ('(' ')')? ('[' ("ISA" '(' mname:IDENT '!' mename:IDENT ')') | (propName:IDENT '=' value:exp) | (index:exp) ']')*)* (',' default:exp)?;
IDENT ::= [A-Za-z_][A-Za-z0-9_]*;
VALUE ::= STRING | INT;
STRING ::= '[^']';
INT ::= [0-9]+;
SKIP ::= ' ' | '\t' | '\n' | '\r';
Field Summary |
protected java.lang.String |
exp
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
exp
protected java.lang.String exp
SOTSExpression2
public SOTSExpression2(java.lang.String exp)
exec
public java.lang.Object exec(StackFrame frame,
Tuple args)
throws java.io.IOException
- Throws:
java.io.IOException