line breaks in interval labels

[psibre]

Although this practice it strongly discouraged, it's possible to externally craft (or create through a Praat script) Intervals whose label contains line breaks. Praat will read and write such files normally (with certain bugs, such as creating correspondingly malformed Xwaves lab files), but the parser in LabelUtils will fail.

[psibre]

Added a test resource multilinelabel.TextGrid. Loading it throws:

java.lang.reflect.InvocationTargetException
    at sun.reflect.GeneratedConstructorAccessor3.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
    at org.praat.PraatTextFile.readPayload(PraatTextFile.java:105)
    at org.praat.PraatTextFile.read(PraatTextFile.java:74)
    at org.praat.PraatFile.readFromFile(PraatFile.java:68)
    at org.praat.PraatFile.read(PraatFile.java:49)
    at org.praat.PraatFile.read(PraatFile.java:34)
    at org.praat.TextGridTest.readMultilineLabel(TextGridTest.java:106)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
    at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:46)
    at org.junit.rules.RunRules.evaluate(RunRules.java:18)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.GeneratedConstructorAccessor2.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
    at org.praat.PraatTextFile.readPayload(PraatTextFile.java:105)
    at org.praat.PraatTextFile.readPayLoad(PraatTextFile.java:86)
    at org.praat.Collection.read(Collection.java:45)
    at org.praat.TextGrid.read(TextGrid.java:73)
    at org.praat.TextGrid.<init>(TextGrid.java:66)
    ... 35 more
Caused by: java.lang.IllegalArgumentException: Could not read string from buffer
    at org.praat.PraatTextFile.readString(PraatTextFile.java:121)
    at org.praat.IntervalTier.read(IntervalTier.java:75)
    at org.praat.IntervalTier.<init>(IntervalTier.java:58)
    ... 43 more