The only reliable way we've found for setting the default character encoding for Scala is to set
$ JAVA_OPTS="-Dfile.encoding=utf8" scala
Welcome to Scala version 2.7.5.final [...]
Type in expressions to have them evaluated.
Type :help for more information.
scala> val x = "garçon"
x: java.lang.String = garçon
Just trying to set
You'll also want to make sure your terminal is set to UTF-8 encoding, which on the Mac is Terminal -> Preferences -> Settings -> Advanced -> International.
$JAVA_OPTS before running your application:$ JAVA_OPTS="-Dfile.encoding=utf8" scala
Welcome to Scala version 2.7.5.final [...]
Type in expressions to have them evaluated.
Type :help for more information.
scala> val x = "garçon"
x: java.lang.String = garçon
Just trying to set
scala -Dfile.encoding=utf8 doesn't seem to do it. Of course, you may not need this if your OS defaults to a sensible character encoding. I'm lumbered with something called "MacRoman"...You'll also want to make sure your terminal is set to UTF-8 encoding, which on the Mac is Terminal -> Preferences -> Settings -> Advanced -> International.
2 Comments:
That's because scala runs on the JVM. So by the time scala has started and can interpret the command line, it's too late to set the encoding. :-(
Mind you, the whole concept of "default encodings" still annoys me. It's almost guaranteed to create bugs and destroy portability.
I've been looking at this myself this morning. I can't find any sensible definition of what encoding gets used for interpreting the command line arguments on the JVM. Nothing appears to state it explicitly. Experiment shows that -Dfile.encoding does the trick, but it'd be nice to have it backed up by something.
If you want this to work via maven use MAVEN_OPTS rather than JAVA_OPTS, this is useful when testing liftweb applications via the mvn jetty:run command.
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