0
[LT] Regexp, Perl, and Port

          id:kdaiba
whoami

 id:kdaiba
 Erlang newbie
 Perl Monger
     Yokohama.pm
     Shibuya.pm
     Tokyo.pm
     Now, setting up quot;Ja...
Erlang supports unicode in R12B-5
Try to print utf-8

perl -e 'map{printf quot;%d,quot;,$_}(unpack quot;C*quot;,quot;寿quot;);print quot;nquot;;'
   229,175,...
When you run this script...

#!/usr/local/bin/escript
main(_) ->
   Item0 = quot;寿quot;,
   Item1 = quot;寿限quot;,
   Item2...
You'll get returns, like below

quot;寿quot;
[229,175,191,233,153,144]
[229,175,191,233,153,144,231,132,161]
quot;寿quot;
[2...
Do google

 There is a page,
    quot;Representing Unicode characters in Erlangquot;
    http://www.erlang.org/eeps/eep-00...
Can't I use utf-8 now ?

use Erlang::Port to see Unicode
I made a perl script to printout utf-8

#!/usr/local/bin/escript
main(_) ->
   perlsay:start(quot;./perlsay.plquot;),
   p...
You'll get returns on STDERR

寿限無、寿限無、五劫の擦り切れ、海砂利水魚、水行末、雲来末、
風来末、食う寝る所に住む所、薮ら柑子のぶら柑子、パイポ、パイ
ポ、パイポのシューリンガン、シューリンガンのグーリンダイ、グ...
Easy erlang code and

-module(perlsay).
-export([say/1]).
-export([start/1, stop/0]).
-import(perlport, [call/2, stop/1])....
Spaghetti perl script (1/4)

#!/usr/local/bin/perl
package Erlang::Port::Say;
use strict;
use warnings;
use Erlang::Port;
...
Spaghetti perl code (2/4)

sub main {
  my $pkg = shift;
  Erlang::Port->new(
     sub {
       my $obj = shift;
       my...
Spagetti perl Script (3/4)

sub _my_proc {
  my $obj = shift;
  my $port = shift;
  if ( !UNIVERSAL::isa( $obj, 'ARRAY' ) ...
Spagetti Perl Script (4/4)

sub _to_s {
  my $obj = shift;
  if ( defined($obj) && !ref($obj) ) {
      $obj;
  }
  elsif ...
quot;song and dancequot; too long ?

      I'm sorry to be boring
You can use this code like this

#!/usr/local/bin/escript

main(_) ->
 perlre:start(quot;./perlre.plquot;),
 perlsay:start...
Finally, you get ...

とんぼ
Twist ending

  I need to check B12-R5
  Today I have bad feelings. So I download B12-R5. It shows,
      Eshell V5.6.5 (a...
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Erlang with Regexp Perl And Port

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How to print unicode on erlang with perl and open port.

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Transcript of "Erlang with Regexp Perl And Port"

  1. 1. [LT] Regexp, Perl, and Port id:kdaiba
  2. 2. whoami id:kdaiba Erlang newbie Perl Monger Yokohama.pm Shibuya.pm Tokyo.pm Now, setting up quot;Japan Perl Associationquot; http://trac.endeworks.jp/trac/tpfj/wiki Infrastructure Engineer
  3. 3. Erlang supports unicode in R12B-5
  4. 4. Try to print utf-8 perl -e 'map{printf quot;%d,quot;,$_}(unpack quot;C*quot;,quot;寿quot;);print quot;nquot;;' 229,175,191, 1> UniString = [229,175,191]. quot;寿quot; 2> io:format(quot;~p~nquot;,[UniString]). quot;寿quot; ok 3> It's looks OK on mac's terminal. But ...
  5. 5. When you run this script... #!/usr/local/bin/escript main(_) -> Item0 = quot;寿quot;, Item1 = quot;寿限quot;, Item2 = quot;寿限無quot;, Item3 = [[229,175,191],[233,153,144],[231,132,161]], io:format(quot;~p~nquot;, [Item0]), io:format(quot;~p~nquot;, [Item1]), io:format(quot;~p~nquot;, [Item2]), [io:format(quot;~p~nquot;, [X]) || X <- Item3].
  6. 6. You'll get returns, like below quot;寿quot; [229,175,191,233,153,144] [229,175,191,233,153,144,231,132,161] quot;寿quot; [233,153,144] [231,132,161]
  7. 7. Do google There is a page, quot;Representing Unicode characters in Erlangquot; http://www.erlang.org/eeps/eep-0010.html It's a quot;Erlang Enhancement Proposals (EEPs)quot;, #10 This proposal's STATUS http://www.erlang.org/eeps/ Standards Track EEP Accepted proposal NOT quot;Proposal is implemented in OTP release R12B-5quot;
  8. 8. Can't I use utf-8 now ? use Erlang::Port to see Unicode
  9. 9. I made a perl script to printout utf-8 #!/usr/local/bin/escript main(_) -> perlsay:start(quot;./perlsay.plquot;), perlsay:say(quot;寿限無、寿限無、五劫の擦り切れ、海砂利水魚、水 行末、雲来末、風来末、食う寝る所に住む所、薮ら柑子のぶら柑子、 パイポ、パイポ、パイポのシューリンガン、シューリンガンのグーリンダ イ、グーリンダイのポンポコピーのポンポコナーの長久命の長助quot;), perlsay:stop().
  10. 10. You'll get returns on STDERR 寿限無、寿限無、五劫の擦り切れ、海砂利水魚、水行末、雲来末、 風来末、食う寝る所に住む所、薮ら柑子のぶら柑子、パイポ、パイ ポ、パイポのシューリンガン、シューリンガンのグーリンダイ、グーリン ダイのポンポコピーのポンポコナーの長久命の長助
  11. 11. Easy erlang code and -module(perlsay). -export([say/1]). -export([start/1, stop/0]). -import(perlport, [call/2, stop/1]). say(String) -> call([say, String], perlsay). start(Script) -> perlport:start(Script, perlsay). stop() -> perlport:stop(perlsay).
  12. 12. Spaghetti perl script (1/4) #!/usr/local/bin/perl package Erlang::Port::Say; use strict; use warnings; use Erlang::Port; caller or __PACKAGE__->main(@ARGV); 1;
  13. 13. Spaghetti perl code (2/4) sub main { my $pkg = shift; Erlang::Port->new( sub { my $obj = shift; my $port = shift; my $ret = eval { _my_proc( $obj, $port ) }; $ret = $port->_newTuple( [ $port->_newAtom('error') => $@, ] ) if ($@); $ret; } )->loop(); }
  14. 14. Spagetti perl Script (3/4) sub _my_proc { my $obj = shift; my $port = shift; if ( !UNIVERSAL::isa( $obj, 'ARRAY' ) ) { return $port->_newTuple( [ $port->_newAtom('badarg'), $obj ] ); } my $key = _to_s( $obj->[0] ); if ( !defined($key) || $key ne 'say' ) { return $port->_newTuple( [ $port->_newAtom('badarg'), $obj ] ); } my $str = _to_s( $obj->[1] ); if ( !defined($str) ) { return $port->_newTuple( [ $port->_newAtom('badarg'), $obj ] ); } print STDERR $str, quot;nquot;; $str; }
  15. 15. Spagetti Perl Script (4/4) sub _to_s { my $obj = shift; if ( defined($obj) && !ref($obj) ) { $obj; } elsif ( $obj && ref($obj) eq 'ARRAY' && @$obj == 0 ) { quot;quot;; } elsif ( ref($obj) && UNIVERSAL::isa( $obj, 'Erlang::Atom' ) ) { $$obj; } elsif ( ref($obj) && UNIVERSAL::isa( $obj, 'Erlang::Binary' ) ) { $$obj; } else { undef; } }
  16. 16. quot;song and dancequot; too long ? I'm sorry to be boring
  17. 17. You can use this code like this #!/usr/local/bin/escript main(_) -> perlre:start(quot;./perlre.plquot;), perlsay:start(quot;./perlsay.plquot;), F = perlre:match(quot;赤とんぼquot;,quot;(p{Hiragana}+)quot;), [perlsay:say(X) || X <- F], perlre:stop(), perlsay:stop(). # perlre.pl is a sample code of Erlang::Port
  18. 18. Finally, you get ... とんぼ
  19. 19. Twist ending I need to check B12-R5 Today I have bad feelings. So I download B12-R5. It shows, Eshell V5.6.5 (abort with ^G) But, when I check my mac's erl, it shows Eshell V5.6.4 (abort with ^G) I made a mumbo jumbo ....
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