Command line invocation > app --arg1 true Combining short argument names Example 1. Boolean arguments combination Defining the arguments valxx=arg[Boolean](shortName=Some('x'))valyy=arg[Boolean](shortName=Some('y'))valzz=arg[Boolean](shortName=Some('z')) ...
}// OParser.parse returns Option[Config]OParser.parse(parser1, args,Config())match {caseSome(config)=>// do somethingcase _=>// arguments are bad, error message will have been displayed } SeeScaladoc APIand the rest of this page for the details on various builder methods. Full example...
Argument Parser TheArgumentParserprovides a nice dsl to create the argument mappings. Two types of arguments can be specified. Options (like-f,--bar) or positionals (like the input filename on the last position). You can also specify separators to separates the usage text. ...
Existing libraries parse command line arguments, but still leave it to the user to check semantic correctness, such as whether a value is within a permitted range. This problem also occurs for Modbat, a model-based test tool [2]. @Doc("overrides environment variable CLASSPATH if set") var...
") } val s = sink.trim.toLowerCase() if (s.isEmpty) { throw new ConfigException(s"Invalid $SCHEMA_CONFIG. The topic is not valid for entry containing $path") } s -> new AvroSchema.Parser().parse(file) case other => throw new ConfigException(s"$SCHEMA_CONFIG is not properly ...
arguments() def baseDirectory(): File = oldApp.baseDirectory() def provider(): AppProvider = new AppProvider { def newMain(): AppMain = oldApp.provider.newMain def components(): ComponentProvider = oldApp.provider.components def entryPoint(): Class[_] = oldApp.provider.entryPoint def scala...
Match a three-element tuple where the first element is the string “Scala” and we ignore the second and third arguments. Match any three-element tuple, where the elements could be any type, but they are inferred to be Strings due to the input langs. Extract the elements into variables la...
In this article, we will highlight the 20 best Scala opensource projects. Scala runs on the Java Virtual Machine (JVM) and can be used to create programs in a variety of settings, including big data, cloud computing, and more.
_, MultiLineWhitespace._ import fastparse._, MultiLineWhitespace._ First, let's write the parser for Str. We will ignore escape characters for simplicity, meaning a string is simply a ", followed by zero-or-more non-" characters, closed by another ":...
// ParserTests.scaladefassertResult(x:String,pred:Option[fastparse.all.Parsed[_]]=>Boolean)={valres=ammonite.interp.Parsers.split(x)assert(pred(res))}defassertComplete(x:String)=assertResult(x,_.isDefined)'endOfCommand-{*-assertComplete("{}")*-assertComplete("foo.bar")*-assertComplete("...