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uwol / proleap-cobol-parser

ProLeap ANTLR4-based parser for COBOL
MIT License
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syntax error. "no viable alternative at input" #64

Closed stanmoon closed 6 years ago

stanmoon commented 6 years ago

Hi! When trying to parse some legacy code the following line is causing a syntax error: 240 ACCEPT ARCH-ENT2 AT 1060 ON ESCAPE EXIT PROGRAM STOP RUN. gnuCOBOL compiles the file with no error. I include the stack trace below. Thanks in advance,

Exception in thread "main" java.lang.RuntimeException: syntax error in line 240:28 no viable alternative at input 'ARCH-ENT2 AT' at io.proleap.cobol.asg.runner.ThrowingErrorListener.syntaxError(ThrowingErrorListener.java:20) at org.antlr.v4.runtime.ProxyErrorListener.syntaxError(ProxyErrorListener.java:41) at org.antlr.v4.runtime.Parser.notifyErrorListeners(Parser.java:544) at org.antlr.v4.runtime.DefaultErrorStrategy.reportNoViableAlternative(DefaultErrorStrategy.java:282) at org.antlr.v4.runtime.DefaultErrorStrategy.reportError(DefaultErrorStrategy.java:121) at io.proleap.cobol.Cobol85Parser.identifier(Cobol85Parser.java:47388) at io.proleap.cobol.Cobol85Parser.acceptStatement(Cobol85Parser.java:25212) at io.proleap.cobol.Cobol85Parser.statement(Cobol85Parser.java:24806) at io.proleap.cobol.Cobol85Parser.sentence(Cobol85Parser.java:24606) at io.proleap.cobol.Cobol85Parser.paragraph(Cobol85Parser.java:24542) at io.proleap.cobol.Cobol85Parser.paragraphs(Cobol85Parser.java:24451) at io.proleap.cobol.Cobol85Parser.procedureSection(Cobol85Parser.java:24375) at io.proleap.cobol.Cobol85Parser.procedureDivisionBody(Cobol85Parser.java:24317) at io.proleap.cobol.Cobol85Parser.procedureDivision(Cobol85Parser.java:23377) at io.proleap.cobol.Cobol85Parser.programUnit(Cobol85Parser.java:881) at io.proleap.cobol.Cobol85Parser.compilationUnit(Cobol85Parser.java:784) at io.proleap.cobol.Cobol85Parser.startRule(Cobol85Parser.java:728) at io.proleap.cobol.asg.runner.impl.CobolParserRunnerImpl.parseFile(CobolParserRunnerImpl.java:190) at io.proleap.cobol.asg.runner.impl.CobolParserRunnerImpl.analyzeFile(CobolParserRunnerImpl.java:94) at io.proleap.cobol.asg.runner.impl.CobolParserRunnerImpl.analyzeFile(CobolParserRunnerImpl.java:86) at mx.unam.iingen.srcpi.dmm.COBOLDataStructures.(COBOLDataStructures.java:56) at mx.unam.iingen.srcpi.dmm.DataModelMatcher.readDescriptionFile(DataModelMatcher.java:130) at mx.unam.iingen.srcpi.dmm.DataModelMatcher.main(DataModelMatcher.java:95)

uwol commented 6 years ago

Hi @stanmoon, GnuCOBOL is not covered by ProLeap COBOL parser. This is due to the amount of COBOL extensions in GnuCOBOL, which currently we cannot cover due to resource constraints.