The Extractor Description Language (EDL) can be used to create an extractor which creates a TGraph representation of a textual input.
The project structure should be like this:
jgsrc/ # your jgralab workspace
+-> jgralab/ # jgralab itself
+-> edl/ # this project
Before building you need to create a folder lib in the edl project and insert the [strategoxt.jar] (http://hydra.nixos.org/job/strategoxt-java/strc-java-trunk/build). To build EDL you need to have Apache Ant.
Build jgralab first and then edl.
$ cd ../jgralab/
$ ant
$ cd ../edl/
$ ant
Before edl can be used you need to have [sdf2table] (https://svn.strategoxt.org/repos/StrategoXT/spoofax-imp/trunk/org.strategoxt.imp.nativebundle/native/) and [graphviz] (http://www.graphviz.org/). Make sure that both programms can be called via command line via
$ sdf2table -h
$ dot -V
To generate an extractor from an EDL grammar call
java de.uni_koblenz.edl.preprocessor.EDLPreprocessor -i <SearchPathOfModules> -m <StartModule> -o <OutputPath> -p <PackagePrefix> -s <UsedTGraphSchema>
The generated extractor can be used by calling
java MyExtractor -o <OutputTGFile> (<InputFile> {<InputFile>})
For more options, use --help.
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