$ sudo gem install thrift

compiling compact_protocol.c

compact_protocol.c:442:41: error: shifting a negative signed value is undefined [-Werror,-Wshift-negative-value]

    rb_exc_raise(get_protocol_exception(INT2FIX(-1), rb_str_new2(but)));

....

$xcode-select -p

/Applications/Xcode.app/Contents/Developer

$ sudo xcode-select -s /Library/Developer/CommandLineTools/

$ xcode-select -p

/Library/Developer/CommandLineTools

checking for rb_thread_blocking_region()... *** extconf.rb failed ***

Could not create Makefile due to some reason, probably lack of necessary

libraries and/or headers.  Check the mkmf.log file for more details.  You may

need configuration options.

Provided configuration options:

--with-opt-dir

--without-opt-dir

--with-opt-include

--without-opt-include=${opt-dir}/include

--with-opt-lib

--without-opt-lib=${opt-dir}/lib

--with-make-prog

--without-make-prog

--srcdir=.

--curdir

--ruby=/Users/Samuel/.rbenv/versions/2.1.0/bin/ruby

/Users/Samuel/.rbenv/versions/2.1.0/lib/ruby/2.1.0/mkmf.rb:456:in `try_do': The compiler failed to generate an executable file. (RuntimeError)

You have to install development tools first.

 $ gcc -v

Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1

Apple LLVM version 7.0.2 (clang-700.1.81)

Target: x86_64-apple-darwin15.0.0

Thread model: posix

$ brew config

..

Xcode: 7.2

..

 $ cat /Users/Samuel/.rbenv//versions/2.1.0/gemsets/story-deploy/gems/zookeeper-1.4.11/ext/mkmf.log

"gcc-4.2 -o conftest -I/Users/Samuel/.rbenv/versions/2.1.0/include/ruby-2.1.0/x86_64-darwin13.0 -I/Users/Samuel/.rbenv/versions/2.1.0/include/ruby-2.1.0/ruby/backward -I/Users/Samuel/.rbenv/versions/2.1.0/include/ruby-2.1.0 -I.   -I/Users/Samuel/.rbenv/versions/2.1.0/gemsets/story-deploy/gems/zookeeper-1.4.11/ext/include  -L/Users/Samuel/.rbenv/versions/2.1.0/gemsets/story-deploy/gems/zookeeper-1.4.11/ext/lib -L/Users/Samuel/.rbenv/versions/2.1.0/lib  -O3 -Wno-error=shorten-64-to-32  -pipe conftest.c  -L/Users/Samuel/.rbenv/versions/2.1.0/gemsets/story-deploy/gems/zookeeper-1.4.11/ext/lib  -L/Users/Samuel/.rbenv/versions/2.1.0/gemsets/story-deploy/gems/zookeeper-1.4.11/ext/lib -L/Users/Samuel/.rbenv/versions/2.1.0/lib -L. -L/Users/Samuel/.rbenv/versions/2.1.0/lib  -fstack-protector     -lruby-static -framework CoreFoundation  -lpthread -ldl -lobjc  -lzookeeper_st_gem -lm"

checked program was:

/* begin */

1: #include "ruby.h"

2:

3: int main(int argc, char **argv)

4: {

5:   return 0;

6: }

/* end */

 $ gem install libv8 -v 3.16.14.7 -- --with-system-v8

Fetching: libv8-3.16.14.7-x86_64-darwin-13.gem (100%)

Successfully installed libv8-3.16.14.7-x86_64-darwin-13

Parsing documentation for libv8-3.16.14.7-x86_64-darwin-13

Installing ri documentation for libv8-3.16.14.7-x86_64-darwin-13

Done installing documentation for libv8 after 0 seconds

1 gem installed

 $ brew install homebrew/dupes/apple-gcc42

$ bundle update

(ok)

$ gem install eventmachine -v '1.0.8'

compiling binder.cpp

In file included from binder.cpp:20:

./project.h:116:10: fatal error: 'openssl/ssl.h' file not found

#include <openssl/ssl.h>

         ^

1 error generated.

make: *** [binder.o] Error 1

make failed, exit code 2

$ sudo gem install ffi -v '1.9.10'

/Users/Samuel/.rbenv/versions/2.1.0/lib/ruby/2.1.0/mkmf.rb:456:in `try_do': The compiler failed to generate an executable file. (RuntimeError)

You have to install development tools first.

from /Users/Samuel/.rbenv/versions/2.1.0/lib/ruby/2.1.0/mkmf.rb:587:in `try_cpp'

from /Users/Samuel/.rbenv/versions/2.1.0/lib/ruby/2.1.0/mkmf.rb:1067:in `block in have_header'

from /Users/Samuel/.rbenv/versions/2.1.0/lib/ruby/2.1.0/mkmf.rb:918:in `block in checking_for'

from /Users/Samuel/.rbenv/versions/2.1.0/lib/ruby/2.1.0/mkmf.rb:351:in `block (2 levels) in postpone'

from /Users/Samuel/.rbenv/versions/2.1.0/lib/ruby/2.1.0/mkmf.rb:321:in `open'

from /Users/Samuel/.rbenv/versions/2.1.0/lib/ruby/2.1.0/mkmf.rb:351:in `block in postpone'

from /Users/Samuel/.rbenv/versions/2.1.0/lib/ruby/2.1.0/mkmf.rb:321:in `open'

from /Users/Samuel/.rbenv/versions/2.1.0/lib/ruby/2.1.0/mkmf.rb:347:in `postpone'

from /Users/Samuel/.rbenv/versions/2.1.0/lib/ruby/2.1.0/mkmf.rb:917:in `checking_for'

from /Users/Samuel/.rbenv/versions/2.1.0/lib/ruby/2.1.0/mkmf.rb:1066:in `have_header'

from extconf.rb:16:in `<main>'

extconf failed, exit code 1

$ xcode-select --install

 // xcode 개발툴 설치

$ sudo gem install ffi -v '1.9.10'

Building native extensions.  This could take a while...

Successfully installed ffi-1.9.10

Parsing documentation for ffi-1.9.10

Installing ri documentation for ffi-1.9.10

Done installing documentation for ffi after 0 seconds

1 gem installed

require 'csv'

CSV.read("test.csv")

내용 출력..

CSV.foreach('test.csv') do |row| ; puts row.inspect ; end

 내용 출력..

 CSV.foreach('test.csv', { :col_sep => ',' }) { |row| print row[0] + ";" + row[1]; #logic#  }

=> nil

>> a="1+1" ; begin ; puts eval(a) ; rescue => se ; puts "rescued!!" ; end ; puts "GOGO"

2

GOGO

=> nil

>> a="1+1d" ; begin ; puts eval(a) ; rescue => se ; puts "rescued!!" ; end ; puts "GOGO"

SyntaxError: (eval):1: syntax error, unexpected tIDENTIFIER, expecting end-of-input

from (irb):86:in `eval'

from (irb):86

from /Users/Samuel/.rbenv/versions/2.1.0/bin/irb:11:in `<main>'

>> a="1+1d" ; begin ; puts eval(a) ; rescue Exception => se ; puts "rescued!!" ; end ; puts "GOGO"

rescued!!

GOGO

=> nil

>> a="1+1" ; begin ; puts eval(a) ; rescue Exception => se ; puts "rescued!!" ; end ; puts "GOGO"

2

GOGO

=> nil

>> a="1+1d" ; begin ; puts eval(a) ; rescue StandardError => se ; puts "rescued!!" ; end ; puts "GOGO"

SyntaxError: (eval):1: syntax error, unexpected tIDENTIFIER, expecting end-of-input

from (irb):90:in `eval'

from (irb):90

from /Users/Samuel/.rbenv/versions/2.1.0/bin/irb:11:in `<main>'

>> "a=b,c=d".partition(",").first

=> "a=b"

>> "a=b,c=d".partition(",").last

=> "c=d"

>> "a=b,c=d".split(",").last

=> "c=d"

>> "a=b,c=d".split(",").first

=> "a=b"

>> "a=b,c=d".partition(",")[0]

=> "a=b"

>> "a=b,c=d".partition(",")[1]

=> ","

>> "a=b,c=d".split(",")[0]

=> "a=b"

>> "a=b,c=d".split(",")[1]

=> "c=d"

>> "a=b,c=d".split(",")

=> ["a=b", "c=d"]

>> "a=b,c=d".partition(",")

=> ["a=b", ",", "c=d"]