if (!contentInfo.getType().equals(DRLContentTypeEnum.RULE_LHS_LINE) &&
!contentInfo.getType().equals(DRLContentTypeEnum.RULE_RHS_LINE))
return null;
String variable;
if ((variable = VariableRename.isPossible(contentInfo, offset-contentInfo.getOffset()))!=null)
return new RenameAssistantOption("rename variable", variable, contentInfo, contentInfo.getOffset());
return null;
}