seratch

#!/usr/bin/perl

use strict;
use warnings;

use DBI;
use Data::Dumper;

my $rdbms = 'mysql';
my $db    = 'database_name';

seratch

#!/bin/sh

# JAVA_HOME=/your/java/home
# R CMD javareconf -e
# R
# install.packages("rJava")
# install.packages("RUnit")

wget https://github.com/downloads/tc/RMongo/RMongo_0.0.20.tar.gz --no-check-certificate

seratch

scala -cp casbah-commons*.jar:casbah-core*.jar:casbah-query*.jar:mongo-java-driver*.jar:slf4j-api-*.jar:scalaj-collection*.jar

scala> val conn = com.mongodb.casbah.MongoConnection("hostname")
conn: com.mongodb.casbah.MongoConnection = com.mongodb.casbah.MongoConnection@ada6d09

seratch

// see also https://github.com/seratch/yahoo-setsuden-api-client

// invoke Scala REPL
// scala -cp yahoo-setsuden-api-client*:joda-time*

import com.github.seratch.yahooapis.setsuden.scala._
import request._
import response._
import org.joda.time.LocalDate

seratch

# Rhino (Java required)

curl ftp://ftp.mozilla.org/pub/mozilla.org/js/rhino1_7R3.zip > ./rhino.zip
unzip rhino.zip
mkdir -p ~/Library/Java/Extensions
cp -p rhino1_7R3/js.jar ~/Library/Java/Extensions/
rm -rf rhino.zip ./rhino1_7R3

# -- chekcing installed
# java org.mozilla.javascript.tools.shell.Main

seratch

// ----------------------------------------
// * Scala LINQ-like impl memo
// http://scala-programming-language.1934581.n4.nabble.com/scala-LINQ-for-scala-td2003452.html
// https://github.com/vladimirk/scalalinq/blob/master/src/scalalinq/linq.scala
// ----------------------------------------

class linq[A](seq: Seq[A]) {
  def where(p: A => Boolean) = seq filter p
  def select[B](p: A => B) = seq map p
  def orderby[B <% Ordered[B]](f: A => B) = seq.toList sort ((a, b) => f(a) < f(b))

seratch

// ----------------------
// Scala 2.9.0.final
// http://www.scala-lang.org/node/43

// ----------------------
// REPLのexitはdeprecated

scala> exit
<console>:8: warning: method exit in object Predef is deprecated: Use sys.exit() instead
       exit

seratch

scala> val json = """{ "person" : { "name": "A" }, "person": { "name" : "B" } }"""
json: java.lang.String = { "person" : { "name": "A" }, "person": { "name" : "B" } }

scala> util.parsing.json.JSON.parseFull(json)
res4: Option[Any] = Some(Map(person -> Map(name -> B)))

scala>

seratch

src/scala-compiler-src.jar
src/scala-library-src.jar

diff -r scala-2.9.0.final/src/scala/tools/nsc/ast/TreeGen.scala scala-2.9.0.1/src/scala/tools/nsc/ast/TreeGen.scala
233,240c233,246
<     val sym = tp.typeSymbol
<     val tree =
<       if (sym == UnitClass) Literal(())
<       else if (sym == BooleanClass) Literal(false)
<       else if (isValueClass(sym)) Literal(0)

seratch

scala> for { (k,v) <- List((1,2),(3,4)) } yield (k,v)
res0: List[(Int, Int)] = List((1,2), (3,4))

scala> for { (k,v) <- List((1,2),(3,4)).toMap } yield (k,v)
res1: scala.collection.immutable.Map[Int,Int] = Map(1 -> 2, 3 -> 4)