Beginner problem using EOF token [message #698819] |
Wed, 20 July 2011 09:57 |
Carmela Messages: 10 Registered: July 2011 |
Junior Member |
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Hi all,
maybe I miss some concepts or definitions here, but I hope I make myself understandable.
I'm using Xtext in order to parse and generate a metamodel of a vhdl module. However, I'm just interested in the interface of the vhdl module, not in the implementation of it. (I want to use it later to generate some code)
So I created a grammar for the interface part and now I just want to consume the rest of the text, without carrying about what is in it.
I looked at the documentation of Xtext and found the "Untill token" and "EOF", where EOF would better suit my needs, as it is described in the example given there:
"This allows to consume the complete remaining input of a file starting with a special delimiter.
terminal UNCLOSED_COMMENT : '/*' (!EOF)* EOF;"
However, when I add this terminal to the grammar, I got the following error twice:
error(154): ../esd.tools.vhdlinterface/src-gen/esd/tools/vhdlinterface/parser/antlr/internal/InternalVhdlModel.g:2672:32: Cannot complement rule EOF; not a simple set or element
error(139): ../esd.tools.vhdlinterface/src-gen/esd/tools/vhdlinterface/parser/antlr/internal/InternalVhdlModel.g:2672:30: set complement is empty
So... Is it something I'm doing wrong, an error in the documentation, a bug, something else?
If there is no fix for this, can anyone suggest me another way to get this done?
Thanks,
Carmela
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Re: Beginner problem using EOF token [message #698871 is a reply to message #698824] |
Wed, 20 July 2011 12:07 |
Carmela Messages: 10 Registered: July 2011 |
Junior Member |
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Thanks for answering!
Actually, I've already tried this before. It doesn't really help...
In order to don't cause any conflict with ML_COMMENT, I changed it a little, but using the construction you suggested:
terminal READ_THE_REST : 'architecture' -> EOF;
If I use the terminal in a rule, I get the same error as before. If I don't, then I get this:
0 [main] INFO lipse.emf.mwe.utils.StandaloneSetup - Registering platform uri 'C:\Carmela\XTextWorkspace'
697 [main] INFO ipse.emf.mwe.utils.DirectoryCleaner - Cleaning C:\Carmela\XTextWorkspace\esd.tools.vhdlInterface\..\esd.tools.vhdlInterface\src-gen
718 [main] INFO ipse.emf.mwe.utils.DirectoryCleaner - Cleaning C:\Carmela\XTextWorkspace\esd.tools.vhdlInterface\..\esd.tools.vhdlInterface.ui\src-gen
858 [main] INFO ipse.xtext.generator.LanguageConfig - generating infrastructure for esd.tools.vhdlInterface.VhdlModel with fragments : ImplicitRuntimeFragment, ImplicitUiFragment, GrammarAccessFragment, EcoreGeneratorFragment, SerializerFragment, ResourceFactoryFragment, XtextAntlrGeneratorFragment, JavaValidatorFragment, ImportNamespacesScopingFragment, QualifiedNamesFragment, BuilderIntegrationFragment, GeneratorFragment, FormatterFragment, LabelProviderFragment, OutlineTreeProviderFragment, QuickOutlineFragment, QuickfixProviderFragment, JavaBasedContentAssistFragment, XtextAntlrUiGeneratorFragment, Junit4Fragment, TypesGeneratorFragment, XbaseGeneratorFragment, CodetemplatesGeneratorFragment, RefactorElementNameFragment, CompareFragment
2887 [main] INFO clipse.emf.mwe.utils.GenModelHelper - Registered GenModel '.tools.esd/vhdlInterface/VhdlModel' from 'file:/C:/Carmela/XTextWorkspace/esd.tools.vhdlInterface/src-gen/esd/tools/vhdlInterface/VhdlModel.genmodel'
error(201): ../esd.tools.vhdlInterface/src-gen/esd/tools/vhdlInterface/parser/antlr/internal/InternalVhdlModel.g:2672:62: The following alternatives can never be matched: 1
6125 [main] ERROR enerator.CompositeGeneratorFragment - java.io.FileNotFoundException: ..\esd.tools.vhdlInterface\src-gen\esd\tools\vhdlInterface\parser\antlr\internal\InternalVhdlModelLexer.java (The system cannot find the file specified)
org.eclipse.emf.common.util.WrappedException: java.io.FileNotFoundException: ..\esd.tools.vhdlInterface\src-gen\esd\tools\vhdlInterface\parser\antlr\internal\InternalVhdlModelLexer.java (The system cannot find the file specified)
at org.eclipse.xtext.util.Files.readFileIntoString(Files.java:124)
at org.eclipse.xtext.generator.parser.antlr.AbstractAntlrGeneratorFragment.suppressWarningsImpl(AbstractAntlrGeneratorFragment.java:130)
at org.eclipse.xtext.generator.parser.antlr.AbstractAntlrGeneratorFragment.suppressWarnings(AbstractAntlrGeneratorFragment.java:140)
at org.eclipse.xtext.generator.parser.antlr.AbstractAntlrGeneratorFragment.suppressWarnings(AbstractAntlrGeneratorFragment.java:136)
at org.eclipse.xtext.generator.parser.antlr.XtextAntlrGeneratorFragment.generate(XtextAntlrGeneratorFragment.java:49)
at org.eclipse.xtext.generator.CompositeGeneratorFragment.generate(CompositeGeneratorFragment.java:81)
at org.eclipse.xtext.generator.LanguageConfig.generate(LanguageConfig.java:69)
at org.eclipse.xtext.generator.Generator.generate(Generator.java:351)
at org.eclipse.xtext.generator.Generator.invokeInternal(Generator.java:125)
at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:126)
at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:97)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:73)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:64)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:55)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:74)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:35)
Caused by: java.io.FileNotFoundException: ..\esd.tools.vhdlInterface\src-gen\esd\tools\vhdlInterface\parser\antlr\internal\InternalVhdlModelLexer.java (The system cannot find the file specified)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at org.eclipse.xtext.util.Files.readFileIntoString(Files.java:121)
... 19 more
6127 [main] INFO or.validation.JavaValidatorFragment - generating Java-based EValidator API
error(201): ../esd.tools.vhdlInterface.ui/src-gen/esd/tools/vhdlInterface/ui/contentassist/antlr/internal/InternalVhdlModel.g:5754:62: The following alternatives can never be matched: 1
7885 [main] ERROR enerator.CompositeGeneratorFragment - java.io.FileNotFoundException: ..\esd.tools.vhdlInterface.ui\src-gen\esd\tools\vhdlInterface\ui\contentassist\antlr\internal\InternalVhdlModelLexer.java (The system cannot find the file specified)
org.eclipse.emf.common.util.WrappedException: java.io.FileNotFoundException: ..\esd.tools.vhdlInterface.ui\src-gen\esd\tools\vhdlInterface\ui\contentassist\antlr\internal\InternalVhdlModelLexer.java (The system cannot find the file specified)
at org.eclipse.xtext.util.Files.readFileIntoString(Files.java:124)
at org.eclipse.xtext.generator.parser.antlr.AbstractAntlrGeneratorFragment.suppressWarningsImpl(AbstractAntlrGeneratorFragment.java:130)
at org.eclipse.xtext.generator.parser.antlr.AbstractAntlrGeneratorFragment.suppressWarnings(AbstractAntlrGeneratorFragment.java:140)
at org.eclipse.xtext.generator.parser.antlr.AbstractAntlrGeneratorFragment.suppressWarnings(AbstractAntlrGeneratorFragment.java:136)
at org.eclipse.xtext.generator.parser.antlr.XtextAntlrUiGeneratorFragment.generate(XtextAntlrUiGeneratorFragment.java:53)
at org.eclipse.xtext.generator.CompositeGeneratorFragment.generate(CompositeGeneratorFragment.java:81)
at org.eclipse.xtext.generator.LanguageConfig.generate(LanguageConfig.java:69)
at org.eclipse.xtext.generator.Generator.generate(Generator.java:351)
at org.eclipse.xtext.generator.Generator.invokeInternal(Generator.java:125)
at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:126)
at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:97)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:73)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:64)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:55)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:74)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:35)
Caused by: java.io.FileNotFoundException: ..\esd.tools.vhdlInterface.ui\src-gen\esd\tools\vhdlInterface\ui\contentassist\antlr\internal\InternalVhdlModelLexer.java (The system cannot find the file specified)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at org.eclipse.xtext.util.Files.readFileIntoString(Files.java:121)
... 19 more
7885 [main] INFO text.generator.junit.Junit4Fragment - generating Junit4 Test support classes
7899 [main] INFO text.generator.junit.Junit4Fragment - generating Compare Framework infrastructure
7991 [main] INFO .emf.mwe2.runtime.workflow.Workflow - Done.
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