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  • \$\begingroup\$ I get James_pic.scala:42: error: ')' expected but string literal found. output.write(s"$a $b $t\n$c $d $u\n") ^ one error found. This is on Scala compiler version 2.9.2 \$\endgroup\$ Commented May 8, 2014 at 16:39
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    \$\begingroup\$ I got it to work with 2.10.3. It's a very nice solution although my poor computer is more or less unusable for a minute or so afterwards as it tries to deallocate 6GB of RAM. \$\endgroup\$ Commented May 8, 2014 at 18:36
  • \$\begingroup\$ Yes, sorry. I figured you might have that issue. Ubuntu still ships with Scala 2.9, and string interpolation needs 2.10 or higher. I suspect it'll be faster still under Java 8, but Ubuntu only ships with 7, and that's a world of pain that you don't need! \$\endgroup\$ Commented May 9, 2014 at 8:03
  • \$\begingroup\$ Re input: I don't always use StringTokenizer, but when I do, I parse millions of strings. \$\endgroup\$ Commented May 9, 2014 at 14:22
  • \$\begingroup\$ @Geobits Yeah, String.split is currently a bottleneck, but StringTokenizer isn't much better right now - allocating in a tight inner loop is hurting my already strained GC. I'm working on an FSM which seems to have promise (whilst being complete overkill) \$\endgroup\$ Commented May 9, 2014 at 14:50