Mercurial > hg > Members > nobuyasu > scala
view chapter7/yield.scala @ 0:b316eec6fa7a draft default tip
add sample files
author | Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> |
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date | Tue, 08 Jan 2013 16:41:46 +0900 |
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val filesHere = (new java.io.File(".")).listFiles def fileLines(file: java.io.File) = scala.io.Source.fromFile(file).getLines.toList def scalaFiles = for { file <- filesHere if file.getName.endsWith(".scala") } yield file for (f <- scalaFiles) println(f.getName) val forLineLengths = for { file <- filesHere if file.getName.endsWith(".scala") line <- fileLines(file) trimmed = line.trim if trimmed.matches(".*for.*") } yield trimmed.length for (i <- forLineLengths) println(i)