If you need to change or correct the syntax then it may be best to go back to the parser generator, to do this you need to:
Goto https://javacc.dev.java.net/ to the following page:
scroll down to 'getting the software' and click on 'download':
After clicking on download choose which version:
When the file has been downloaded choose and run a suitable program to extract:
Extract all the files to a suitable directory:
Get java2xes.jjt file
You can get the parser generator for XES from the sourceforge web site http://sourceforge.net/projects/xes/ click on download and choose the source files xes_java_src_ver08.zip and also the paser generator files: parserGenerator_ver08.zip. Download both of these to a suitable directory. Then use a suitable program to extract them to the same directory.
run jjtree
I made a batch file to run jjtree which contains the following:
| C:\Borland\JBuilder2005\jdk1.4\jre\bin\java -classpath "javacc-3.2\bin\lib\javacc.jar" jjtree java2xes.jjt |
You will need to modify this depending on where your files are located.
Assuming that you have downloaded the node source file to the same directory as suggested then javacc will detect them and realise that it does not need to overwright them.
run javacc
I made a batch file to run javacc which contains the following:
| C:\Borland\JBuilder2005\jdk1.4\jre\bin\java -classpath "javacc-3.2\bin\lib\javacc.jar" javacc java2xes.jj |
You will need to modify this depending on where your files are located.
This uses the java2xes.jj file which is an output of the jjtree stage above.
Compiling code generated
What I do is to put java2xes.jjt in a directory on its own, then run jjtree which produces java2xes.jj and a lot of .java files, then run javacc on java2xes.jj which produces some more .java files.
It seems to me that the java files generated are in different types:
I think that the files that contain ‘JavaParser’ in their name are specific to this grammer (there are a different set for ‘csParser’) these files are: JavaParser.java, JavaParserConstants.java, JavaParserTokenManager.java, JavaParserTreeConstants.java, JavaParserVisitor.java, JJTJavaParserState.java. These files all depend on each other so a version from one grammar should not be used with one from a different grammar.
I would then copy all these files to your java environment to replace the existing versions and compile.
The files representing tree nodes are only skeleton files. I have modified these to give the functionality required so we don’t want to use the files just generated (if existing versions of these files are in the directory then they should not be overwritten). If you compile with these skeleton files then there will be compiler errors because they wont match the code fragments inserted into the grammar.
AnnotationTypeDeclaration.java, MarkerAnnotation.java, MemberValue.java, MemberValueArrayInitializer.java, MemberValuePair.java, MemberValuePairs.java, Node.java, nodeAnnotation.java, nodeAssert.java, nodeAssign.java, nodeBinaryOp.java, nodeBlock.java, nodeBreak.java, nodeCall.java, nodeCase.java, nodeClassDef.java, nodeConstant.java, nodeEnumDec.java, nodeIf.java, nodeImport.java, nodeLabel.java, nodeLoop.java, nodeMethodDec.java, nodeNameList.java, nodePackageDec.java, nodeParameter.java, nodeParameterList.java, nodeReturn.java, nodeSwitch.java, nodeTry.java, nodeTypeOp.java, nodeUnaryOp.java, nodeVariable.java, NormalAnnotation.java
There also seem to be some files that have fixed functionality and don’t depend on the grammar (although, some like ‘Token.java’ have been modified to fix bugs).
JavaCharStream.java, ParseException.java, SimpleNode.java, SingleMemberAnnotation.java, SynchronizedStatement.java, Token.java, TokenMgrError.java
