[jboss-jira] [JBoss JIRA] Created: (JBRULES-2518) equal sign (=) in string literal in MVEL modify statement causes error

[Steve Miner (JIRA)]

equal sign (=) in string literal in MVEL modify statement causes error
----------------------------------------------------------------------

                 Key: JBRULES-2518
                 URL: https://jira.jboss.org/browse/JBRULES-2518
             Project: Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: drools-core  (expert)
    Affects Versions: 5.0.1.FINAL
         Environment: Mac OS X 10.6.3, Java 1.6
            Reporter: Steve Miner
            Assignee: Mark Proctor


rule "mvel equal sign bug"
	dialect "mvel"
	when
		$d: Dog(name == "Bertie")
	then
		modify ($d) {name = "Bertie = Boy"};
end

Note the string literal for the new value for name contains an equal sign (=).  That causes an error.  Apparently, the modify macro or the MVEL parser is choking on the equal sign.

java.lang.Error: org.drools.rule.InvalidRulePackage: Unable to build expression for 'consequence': [Error: unterminated literal]
[Near : {... h ($d) {name = "Bertie = Boy"} ....}]
                                          ^
[Line: 1, Column: 43] '		modify ($d) {name = "Bertie = Boy"};
' : [Rule name='mvel equal sign bug']


If I remove the "=" from inside the string literal (substituting "is a"), it works as expected.

rule "mvel equal sign bug"
	dialect "mvel"
	when
		$d: Dog(name == "Bertie")
	then
		modify ($d) {name = "Bertie is a Boy"};
end


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