INABA Hitoshi


Latin1 - Source code filter to escape Latin-1 script

Install and Usage

There are two steps there:

  • You'll have to download and and put it in your perl lib directory.

  • You'll need to write "use Latin1;" at head of the script.


  use Latin1;
  use Latin1 ver.sion;             --- require minimum version
  use Latin1 ver.sion.0;           --- expects version (match or die)

  # "no Latin1;" not supported


  $ perl >


  $ perl  --- script written in Latin-1 --- escaped script

  emulate Perl5.6 on perl5.00503
    use warnings;
    use warnings::register;

  emulate Perl5.16
    use feature qw(fc);

  dummy functions:


Latin1 software is "middleware" between perl interpreter and your Perl script written in Latin-1.

Perl is optimized for problems which are about 90% working with text and about 10% everything else. Even if this "text" doesn't contain Latin-1, Perl3 or later can treat Latin-1 as binary data.

By "use Latin1;", it automatically interpret your script as Latin-1. The various functions of perl including a regular expression can treat Latin-1 now. The function length treats length per byte. This software does not use UTF8 flag.

Yet Another Future Of

JPerl is very useful software. -- Oops, note, this "JPerl" means "Japanized Perl" or "Japanese Perl". Therefore, it is unrelated to JPerl of the following.

 JPerl is an implementation of Perl written in Java.
 jPerl - Perl on the JVM
 Jamie's PERL scripts for bioinformatics
 jperl (Jonathan Perl)

Now, the last version of JPerl is 5.005_04 and is not maintained now.

Japanization modifier WATANABE Hirofumi said,

  "Because WATANABE am tired I give over maintaing JPerl."

at Slide #15: "The future of JPerl" of

in The Perl Confernce Japan 1998.

When I heard it, I thought that someone excluding me would maintain JPerl. And I slept every night hanging a sock. Night and day, I kept having hope. After 10 years, I noticed that white beard exists in the sock :-)

This software is a source code filter to escape Perl script encoded by Latin-1 given from STDIN or command line parameter. The character code is never converted by escaping the script. Neither the value of the character nor the length of the character string change even if it escapes.

I learned the following things from the successful software.

  • Upper Compatibility like Perl4 to Perl5

  • Maximum Portability like

  • Remains One Language Handling Raw Latin-1, Doesn't Use UTF8 flag like JPerl

  • Remains One Interpreter like Encode module

  • Code Set Independent like Ruby

  • There's more than one way to do it like Perl itself

I am excited about this software and Perl's future --- I hope you are too.

JRE: JPerl Runtime Environment

  |        JPerl Application Script       | Your Script
  |  Source Code Filter, Runtime Routine  | ex.,
  |          PVM 5.00503 or later         | ex. perl 5.00503

A Perl Virtual Machine (PVM) enables a set of computer software programs and data structures to use a virtual machine model for the execution of other computer programs and scripts. The model used by a PVM accepts a form of computer intermediate language commonly referred to as Perl byteorientedcode. This language conceptually represents the instruction set of a byte-oriented, capability architecture.

Basic Idea of Source Code Filter

I discovered this mail again recently.

[] jus Benkyoukai

save as:

  package SJIS;
  use Filter::Util::Call;
  sub multibyte_filter {
      my $status;
      if (($status = filter_read()) > 0 ) {
  sub import {

I am glad that I could confirm my idea is not so wrong.

Command-line Wildcard Expansion on DOS-like Systems

The default command shells on DOS-like systems (COMMAND.COM or cmd.exe) do not expand wildcard arguments supplied to programs. Instead, import of works well.

   # @ARGV wildcard globbing
   sub import {

       if ($^O =~ /\A (?: MSWin32 | NetWare | symbian | dos ) \z/oxms) {
           my @argv = ();
           for (@ARGV) {

               # has space
               if (/\A (?:$q_char)*? [ ] /oxms) {
                   if (my @glob = Elatin1::glob(qq{"$_"})) {
                       push @argv, @glob;
                   else {
                       push @argv, $_;

               # has wildcard metachar
               elsif (/\A (?:$q_char)*? [*?] /oxms) {
                   if (my @glob = Elatin1::glob($_)) {
                       push @argv, @glob;
                   else {
                       push @argv, $_;

               # no wildcard globbing
               else {
                   push @argv, $_;
           @ARGV = @argv;

Software Composition               --- source code filter to escape Latin-1              --- run-time routines for
   perl5.bat             --- find and run perl5    without %PATH% settings
   perl55.bat            --- find and run perl5.5  without %PATH% settings
   perl56.bat            --- find and run perl5.6  without %PATH% settings
   perl58.bat            --- find and run perl5.8  without %PATH% settings
   perl510.bat           --- find and run perl5.10 without %PATH% settings
   perl512.bat           --- find and run perl5.12 without %PATH% settings
   perl514.bat           --- find and run perl5.14 without %PATH% settings
   perl516.bat           --- find and run perl5.16 without %PATH% settings
   perl518.bat           --- find and run perl5.18 without %PATH% settings
   perl64.bat            --- find and run perl64   without %PATH% settings
   perl64512.bat         --- find and run perl5.12 (x64) without %PATH% settings
   perl64514.bat         --- find and run perl5.14 (x64) without %PATH% settings
   perl64516.bat         --- find and run perl5.16 (x64) without %PATH% settings
   perl64518.bat         --- find and run perl5.18 (x64) without %PATH% settings
   aperl58.bat           --- find and run ActivePerl 5.8  without %PATH% settings
   aperl510.bat          --- find and run ActivePerl 5.10 without %PATH% settings
   aperl512.bat          --- find and run ActivePerl 5.12 without %PATH% settings
   aperl514.bat          --- find and run ActivePerl 5.14 without %PATH% settings
   aperl516.bat          --- find and run ActivePerl 5.16 without %PATH% settings
   aperl518.bat          --- find and run ActivePerl 5.18 without %PATH% settings
   aperl64512.bat        --- find and run ActivePerl 5.12 (x64) without %PATH% settings
   aperl64514.bat        --- find and run ActivePerl 5.14 (x64) without %PATH% settings
   aperl64516.bat        --- find and run ActivePerl 5.16 (x64) without %PATH% settings
   aperl64518.bat        --- find and run ActivePerl 5.18 (x64) without %PATH% settings
   sperl58.bat           --- find and run Strawberry Perl 5.8  without %PATH% settings
   sperl510.bat          --- find and run Strawberry Perl 5.10 without %PATH% settings
   sperl512.bat          --- find and run Strawberry Perl 5.12 without %PATH% settings
   sperl514.bat          --- find and run Strawberry Perl 5.14 without %PATH% settings
   sperl516.bat          --- find and run Strawberry Perl 5.16 without %PATH% settings
   sperl518.bat          --- find and run Strawberry Perl 5.18 without %PATH% settings
   sperl64512.bat        --- find and run Strawberry Perl 5.12 (x64) without %PATH% settings
   sperl64514.bat        --- find and run Strawberry Perl 5.14 (x64) without %PATH% settings
   sperl64516.bat        --- find and run Strawberry Perl 5.16 (x64) without %PATH% settings
   sperl64518.bat        --- find and run Strawberry Perl 5.18 (x64) without %PATH% settings
   cperl.bat             --- find and run Cygwin's Perl without %PATH% settings
   strict.pm_            --- dummy
   warnings.pm_          --- poor
   warnings/register.pm_ --- poor warnings/
   feature.pm_           --- dummy

Upper Compatibility by Escaping

This software adds the function by 'Escaping' it always, and nothing of the past is broken. Therefore, 'Possible job' never becomes 'Impossible job'. This approach is effective in the field where the retreat is never permitted. It means incompatible upgrade of Perl should be rewound.

Escaping Your Script (You do)

You need write 'use Latin1;' in your script.

  Before      You do
  (nothing)   use Latin1;

Calling 'Elatin1::ignorecase()' ( provides) applies calling 'Elatin1::ignorecase()' instead of /i modifier.

  Before                  After
  m/...$var.../i          m/...@{[Elatin1::ignorecase($var)]}.../

Escaping Character Classes ( provides)

The character classes are redefined as follows to backward compatibility.

  Before        After
   .            ${Elatin1::dot}
                ${Elatin1::dot_s}    (/s modifier)
  \d            [0-9]
  \s            \s
  \w            [0-9A-Z_a-z]
  \D            ${Elatin1::eD}
  \S            ${Elatin1::eS}
  \W            ${Elatin1::eW}
  \h            [\x09\x20]
  \v            [\x0A\x0B\x0C\x0D]
  \H            ${Elatin1::eH}
  \V            ${Elatin1::eV}
  \C            [\x00-\xFF]
  \X            X (so, just 'X')
  \R            ${Elatin1::eR}
  \N            ${Elatin1::eN}

Also POSIX-style character classes.

  Before        After
  [:alnum:]     [\x30-\x39\x41-\x5A\x61-\x7A]
  [:alpha:]     [\x41-\x5A\x61-\x7A]
  [:ascii:]     [\x00-\x7F]
  [:blank:]     [\x09\x20]
  [:cntrl:]     [\x00-\x1F\x7F]
  [:digit:]     [\x30-\x39]
  [:graph:]     [\x21-\x7F]
  [:lower:]     [\x61-\x7A]
                [\x41-\x5A\x61-\x7A]     (/i modifier)
  [:print:]     [\x20-\x7F]
  [:punct:]     [\x21-\x2F\x3A-\x3F\x40\x5B-\x5F\x60\x7B-\x7E]
  [:space:]     [\s\x0B]
  [:upper:]     [\x41-\x5A]
                [\x41-\x5A\x61-\x7A]     (/i modifier)
  [:word:]      [\x30-\x39\x41-\x5A\x5F\x61-\x7A]
  [:xdigit:]    [\x30-\x39\x41-\x46\x61-\x66]
  [:^alnum:]    ${Elatin1::not_alnum}
  [:^alpha:]    ${Elatin1::not_alpha}
  [:^ascii:]    ${Elatin1::not_ascii}
  [:^blank:]    ${Elatin1::not_blank}
  [:^cntrl:]    ${Elatin1::not_cntrl}
  [:^digit:]    ${Elatin1::not_digit}
  [:^graph:]    ${Elatin1::not_graph}
  [:^lower:]    ${Elatin1::not_lower}
                ${Elatin1::not_lower_i}    (/i modifier)
  [:^print:]    ${Elatin1::not_print}
  [:^punct:]    ${Elatin1::not_punct}
  [:^space:]    ${Elatin1::not_space}
  [:^upper:]    ${Elatin1::not_upper}
                ${Elatin1::not_upper_i}    (/i modifier)
  [:^word:]     ${Elatin1::not_word}
  [:^xdigit:]   ${Elatin1::not_xdigit}

\b and \B are redefined as follows to backward compatibility.

  Before      After
  \b          ${Elatin1::eb}
  \B          ${Elatin1::eB}

Definitions in

  After                    Definition
  ${Elatin1::dot}            qr{(?:[^\x0A])}
  ${Elatin1::dot_s}          qr{(?:[\x00-\xFF])}
  ${Elatin1::eD}             qr{(?:[^0-9])}
  ${Elatin1::eS}             qr{(?:[^\s])}
  ${Elatin1::eW}             qr{(?:[^0-9A-Z_a-z])}
  ${Elatin1::eH}             qr{(?:[^\x09\x20])}
  ${Elatin1::eV}             qr{(?:[^\x0A\x0B\x0C\x0D])}
  ${Elatin1::eR}             qr{(?:\x0D\x0A|[\x0A\x0D])}
  ${Elatin1::eN}             qr{(?:[^\x0A])}
  ${Elatin1::not_alnum}      qr{(?:[^\x30-\x39\x41-\x5A\x61-\x7A])}
  ${Elatin1::not_alpha}      qr{(?:[^\x41-\x5A\x61-\x7A])}
  ${Elatin1::not_ascii}      qr{(?:[^\x00-\x7F])}
  ${Elatin1::not_blank}      qr{(?:[^\x09\x20])}
  ${Elatin1::not_cntrl}      qr{(?:[^\x00-\x1F\x7F])}
  ${Elatin1::not_digit}      qr{(?:[^\x30-\x39])}
  ${Elatin1::not_graph}      qr{(?:[^\x21-\x7F])}
  ${Elatin1::not_lower}      qr{(?:[^\x61-\x7A])}
  ${Elatin1::not_lower_i}    qr{(?:[\x00-\xFF])}
  ${Elatin1::not_print}      qr{(?:[^\x20-\x7F])}
  ${Elatin1::not_punct}      qr{(?:[^\x21-\x2F\x3A-\x3F\x40\x5B-\x5F\x60\x7B-\x7E])}
  ${Elatin1::not_space}      qr{(?:[^\s\x0B])}
  ${Elatin1::not_upper}      qr{(?:[^\x41-\x5A])}
  ${Elatin1::not_upper_i}    qr{(?:[\x00-\xFF])}
  ${Elatin1::not_word}       qr{(?:[^\x30-\x39\x41-\x5A\x5F\x61-\x7A])}
  ${Elatin1::not_xdigit}     qr{(?:[^\x30-\x39\x41-\x46\x61-\x66])}
  ${Elatin1::eb}             qr{(?:\A(?=[0-9A-Z_a-z])|(?<=[\x00-\x2F\x40\x5B-\x5E\x60\x7B-\xFF])(?=[0-9A-Z_a-z])|(?<=[0-9A-Z_a-z])(?=[\x00-\x2F\x40\x5B-\x5E\x60\x7B-\xFF]|\z))}
  ${Elatin1::eB}             qr{(?:(?<=[0-9A-Z_a-z])(?=[0-9A-Z_a-z])|(?<=[\x00-\x2F\x40\x5B-\x5E\x60\x7B-\xFF])(?=[\x00-\x2F\x40\x5B-\x5E\x60\x7B-\xFF]))}

Un-Escaping \ of \N, \p, \P and \X ( provides) removes '\' at head of alphanumeric regexp metasymbols \N, \p, \P and \X. By this method, you can avoid the trap of the abstraction.

See also, Deprecate literal unescaped "{" in regexes.

  Before           After
  \p{L}            p\{L}
  \p{^L}           p\{^L}
  \p{\^L}          p\{\^L}
  \pL              pL
  \P{L}            P\{L}
  \P{^L}           P\{^L}
  \P{\^L}          P\{\^L}
  \PL              PL
  \X               X

Escaping Built-in Functions ( and provide)

Insert 'Elatin1::' at head of function name. provides your script Elatin1::* functions.

  Before      After            Works as
  lc          Elatin1::lc        Character
  lcfirst     Elatin1::lcfirst   Character
  uc          Elatin1::uc        Character
  ucfirst     Elatin1::ucfirst   Character
  fc          Elatin1::fc        Character
  chr         Elatin1::chr       Character
  glob        Elatin1::glob      Character

  Before                   After
  use Perl::Module;        BEGIN { require 'Perl/'; Perl::Module->import() if Perl::Module->can('import'); }
  use Perl::Module @list;  BEGIN { require 'Perl/'; Perl::Module->import(@list) if Perl::Module->can('import'); }
  use Perl::Module ();     BEGIN { require 'Perl/'; }
  no Perl::Module;         BEGIN { require 'Perl/'; Perl::Module->unimport() if Perl::Module->can('unimport'); }
  no Perl::Module @list;   BEGIN { require 'Perl/'; Perl::Module->unimport(@list) if Perl::Module->can('unimport'); }
  no Perl::Module ();      BEGIN { require 'Perl/'; }

Un-Escaping bytes::* Functions ( provides) removes 'bytes::' at head of function name.

  Before           After     Works as
  bytes::chr       chr       Byte
  bytes::index     index     Byte
  bytes::length    length    Byte
  bytes::ord       ord       Byte
  bytes::rindex    rindex    Byte
  bytes::substr    substr    Byte

Escaping Built-in Standard Module ( provides) does "BEGIN { unshift @INC, '/Perl/site/lib/Latin1' }" at head. Store the standard module modified for Latin1 software in this directory to override built-in standard modules.

Escaping Standard Module Content (You do)

You need copy built-in standard module to /Perl/site/lib/Latin1 and change 'use utf8;' to 'use Latin1;' in its. You need help yourself for now.

Back to and see 'Escaping Your Script'. Enjoy hacking!!

Ignore Pragmas and Modules

  Before                    After
  use strict;               use strict; no strict qw(refs);
  use 5.12.0;               use 5.12.0; no strict qw(refs);
  require utf8;             # require utf8;
  require bytes;            # require bytes;
  require charnames;        # require charnames;
  require I18N::Japanese;   # require I18N::Japanese;
  require I18N::Collate;    # require I18N::Collate;
  require I18N::JExt;       # require I18N::JExt;
  require File::DosGlob;    # require File::DosGlob;
  require Wild;             # require Wild;
  require Wildcard;         # require Wildcard;
  require Japanese;         # require Japanese;
  use utf8;                 # use utf8;
  use bytes;                # use bytes;
  use charnames;            # use charnames;
  use I18N::Japanese;       # use I18N::Japanese;
  use I18N::Collate;        # use I18N::Collate;
  use I18N::JExt;           # use I18N::JExt;
  use File::DosGlob;        # use File::DosGlob;
  use Wild;                 # use Wild;
  use Wildcard;             # use Wildcard;
  use Japanese;             # use Japanese;
  no utf8;                  # no utf8;
  no bytes;                 # no bytes;
  no charnames;             # no charnames;
  no I18N::Japanese;        # no I18N::Japanese;
  no I18N::Collate;         # no I18N::Collate;
  no I18N::JExt;            # no I18N::JExt;
  no File::DosGlob;         # no File::DosGlob;
  no Wild;                  # no Wild;
  no Wildcard;              # no Wildcard;
  no Japanese;              # no Japanese;

  Comment out pragma to ignore utf8 environment, and provides these
  • Dummy utf8::upgrade

      $num_octets = utf8::upgrade($string);
      Returns the number of octets necessary to represent the string.
  • Dummy utf8::downgrade

      $success = utf8::downgrade($string[, FAIL_OK]);
      Returns true always.
  • Dummy utf8::encode

      Returns nothing.
  • Dummy utf8::decode

      $success = utf8::decode($string);
      Returns true always.
  • Dummy utf8::is_utf8

      $flag = utf8::is_utf8(STRING);
      Returns false always.
  • Dummy utf8::valid

      $flag = utf8::valid(STRING);
      Returns true always.
  • Dummy bytes::chr

      This function is same as chr.
  • Dummy bytes::index

      This function is same as index.
  • Dummy bytes::length

      This function is same as length.
  • Dummy bytes::ord

      This function is same as ord.
  • Dummy bytes::rindex

      This function is same as rindex.
  • Dummy bytes::substr

      This function is same as substr.

Environment Variable

 This software uses the flock function for exclusive control. The execution of the
 program is blocked until it becomes possible to read or write the file.
 You can have it not block in the flock function by defining environment variable
 (The value '1' doesn't have the meaning)

Perl5.6 Emulation on perl5.005

  Using warnings pragma on perl5.00503 by rename files.

  warnings.pm_ -->
  warnings/register.pm_ --> warnings/

Perl5.16 Emulation

  Using feature pragma by rename files.

  feature.pm_ -->


I have tested and verified this software using the best of my ability. However, a software containing much regular expression is bound to contain some bugs. Thus, if you happen to find a bug that's in Latin1 software and not your own program, you can try to reduce it to a minimal test case and then report it to the following author's address. If you have an idea that could make this a more useful tool, please let everyone share it.

  • cloister of regular expression

    The cloister (?s) and (?i) of a regular expression will not be implemented for the time being. Cloister (?s) can be substituted with the .(dot) and \N on /s modifier. Cloister (?i) can be substituted with \F...\E.

  • Modifier /a /d /l and /u of Regular Expression

    The concept of this software is not to use two or more encoding methods at the same time. Therefore, modifier /a /d /l and /u are not supported. \d means [0-9] always.

  • eval "string"

    The function which escapes "string" of eval has not been implemented yet. It will be supported in future versions.


INABA Hitoshi <>

This project was originated by INABA Hitoshi.


This software is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See perlartistic.

This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

My Goal

P.401 See chapter 15: Unicode of ISBN 0-596-00027-8 Programming Perl Third Edition.

Before the introduction of Unicode support in perl, The eq operator just compared the byte-strings represented by two scalars. Beginning with perl 5.8, eq compares two byte-strings with simultaneous consideration of the UTF8 flag.

  Information processing model beginning with perl 5.8
    |     Text strings     |                     |
    +----------+-----------|    Binary strings   |
    |   UTF8   |  Latin-1  |                     |
    | UTF8     |            Not UTF8             |
    | Flagged  |            Flagged              |
    You should memorize this figure.
    (Why is only Latin-1 special?)

This change consequentially made a big gap between a past script and new script. Both scripts cannot re-use the code mutually any longer. Because a new method puts a strain in the programmer, it will still take time to replace all the in existence scripts.

The biggest problem of new method is that the UTF8 flag can't synchronize to real encode of string. Thus you must debug about UTF8 flag, before your script. How to solve it by returning to a this method, let's drag out page 402 of the old dusty Programming Perl, 3rd ed. again.

  Information processing model beginning with perl3 or this software.

    |       Text strings as Binary strings       |
    |       Binary strings as Text strings       |
    |              Not UTF8 Flagged              |

Ideally, I'd like to achieve these five Goals:

  • Goal #1:

    Old byte-oriented programs should not spontaneously break on the old byte-oriented data they used to work on.

    This goal has been achieved by that this software is additional code for perl like utf8 pragma. Perl should work same as past Perl if added nothing.

  • Goal #2:

    Old byte-oriented programs should magically start working on the new character-oriented data when appropriate.

    Still now, 1 octet is counted with 1 by embedded functions length, substr, index, rindex and pos that handle length and position of string. In this part, there is no change. The length of 1 character of 2 octet code is 2.

    On the other hand, the regular expression in the script is added the multibyte anchoring processing with this software, instead of you.

    figure of Goal #1 and Goal #2.

                                   GOAL#1  GOAL#2
                            (a)     (b)     (c)     (d)     (e)
          | data         |  Old  |  Old  |  New  |  Old  |  New  |
          | script       |  Old  |      Old      |      New      |
          | interpreter  |  Old  |              New              |
          Old --- Old byte-oriented
          New --- New character-oriented

    There is a combination from (a) to (e) in data, script and interpreter of old and new. Let's add the Encode module and this software did not exist at time of be written this document and JPerl did exist.

                            (a)     (b)     (c)     (d)     (e)
                                          JPerl           Encode,Latin1
          | data         |  Old  |  Old  |  New  |  Old  |  New  |
          | script       |  Old  |      Old      |      New      |
          | interpreter  |  Old  |              New              |
          Old --- Old byte-oriented
          New --- New character-oriented

    The reason why JPerl is very excellent is that it is at the position of (c). That is, it is not necessary to do a special description to the script to process new character-oriented string.

    JPerl is the only software attained to this goal.

  • Goal #3:

    Programs should run just as fast in the new character-oriented mode as in the old byte-oriented mode.

    It is impossible. Because the following time is necessary.

    (1) Time of escape script for old byte-oriented perl.

    Someday, I want to ask Larry Wall about this goal in the elevator.

  • Goal #4:

    Perl should remain one language, rather than forking into a byte-oriented Perl and a character-oriented Perl.

    JPerl remains one Perl language by forking to two interpreters. However, the Perl core team did not desire fork of the interpreter. As a result, Perl language forked contrary to goal #4.

    A character-oriented perl is not necessary to make it specially, because a byte-oriented perl can already treat the binary data. This software is only an application program of byte-oriented Perl, a filter program.

    And you will get support from the Perl community, when you solve the problem by the Perl script.

    Latin1 software remains one language and one interpreter.

  • Goal #5:

    JPerl users will be able to maintain JPerl by Perl.

    May the JPerl be with you, always.

Back when Programming Perl, 3rd ed. was written, UTF8 flag was not born and Perl is designed to make the easy jobs easy. This software provide programming environment like at that time.

Words of Learning Perl

   Some computer scientists (the reductionists, in particular) would
  like to deny it, but people have funny-shaped minds. Mental geography
  is not linear, and cannot be mapped onto a flat surface without
  severe distortion. But for the last score years or so, computer
  reductionists have been first bowing down at the Temple of Orthogonality,
  then rising up to preach their ideas of ascetic rectitude to any who
  would listen.
   Their fervent but misguided desire was simply to squash your mind to
  fit their mindset, to smush your patterns of thought into some sort of
  Hyperdimensional Flatland. It's a joyless existence, being smushed.
  --- Learning Perl on Win32 Systems
  If you think this is a big headache, you're right. No one likes
  this situation, but Perl does the best it can with the input and
  encodings it has to deal with. If only we could reset history and
  not make so many mistakes next time.
  --- Learning Perl 6th Edition


 Larry Wall, Randal L.Schwartz, Yoshiyuki Kondo
 December 1997
 ISBN 4-89052-384-7

 Programming Perl, Second Edition
 By Larry Wall, Tom Christiansen, Randal L. Schwartz
 October 1996
 Pages: 670
 ISBN 10: 1-56592-149-6 | ISBN 13: 9781565921498

 Programming Perl, Third Edition
 By Larry Wall, Tom Christiansen, Jon Orwant
 Third Edition  July 2000
 Pages: 1104
 ISBN 10: 0-596-00027-8 | ISBN 13: 9780596000271

 The Perl Language Reference Manual (for Perl version 5.12.1)
 by Larry Wall and others
 Paperback (6"x9"), 724 pages
 Retail Price: $39.95 (pound 29.95 in UK)
 ISBN-13: 978-1-906966-02-7

 Perl Pocket Reference, 5th Edition
 By Johan Vromans
 Publisher: O'Reilly Media
 Released: July 2011
 Pages: 102

 Programming Perl, 4th Edition
 By: Tom Christiansen, brian d foy, Larry Wall, Jon Orwant
 Publisher: O'Reilly Media
 Formats: Print, Ebook, Safari Books Online
 Released: March 2012
 Pages: 1130
 Print ISBN: 978-0-596-00492-7 | ISBN 10: 0-596-00492-3
 Ebook ISBN: 978-1-4493-9890-3 | ISBN 10: 1-4493-9890-1

 Perl Cookbook, Second Edition
 By Tom Christiansen, Nathan Torkington
 Second Edition  August 2003
 Pages: 964
 ISBN 10: 0-596-00313-7 | ISBN 13: 9780596003135

 Perl in a Nutshell, Second Edition
 By Stephen Spainhour, Ellen Siever, Nathan Patwardhan
 Second Edition  June 2002
 Pages: 760
 Series: In a Nutshell
 ISBN 10: 0-596-00241-6 | ISBN 13: 9780596002411

 Learning Perl on Win32 Systems
 By Randal L. Schwartz, Erik Olson, Tom Christiansen
 August 1997
 Pages: 306
 ISBN 10: 1-56592-324-3 | ISBN 13: 9781565923249

 Learning Perl, Fifth Edition
 By Randal L. Schwartz, Tom Phoenix, brian d foy
 June 2008
 Pages: 352
 Print ISBN:978-0-596-52010-6 | ISBN 10: 0-596-52010-7
 Ebook ISBN:978-0-596-10316-3 | ISBN 10: 0-596-10316-6

 Learning Perl, 6th Edition
 By Randal L. Schwartz, brian d foy, Tom Phoenix
 June 2011
 Pages: 390
 ISBN-10: 1449303587 | ISBN-13: 978-1449303587

 Futato, Irving, Jepson, Patwardhan, Siever
 ISBN 10: 1-56592-370-7

 By Daisuke Maki
 Pages: 344
 ISBN 10: 4798119172 | ISBN 13: 978-4798119175

 Understanding Japanese Information Processing
 By Ken Lunde
 January 1900
 Pages: 470
 ISBN 10: 1-56592-043-0 | ISBN 13: 9781565920439

 CJKV Information Processing
 Chinese, Japanese, Korean & Vietnamese Computing
 By Ken Lunde
 First Edition  January 1999
 Pages: 1128
 ISBN 10: 1-56592-224-7 | ISBN 13: 9781565922242

 Mastering Regular Expressions, Second Edition
 By Jeffrey E. F. Friedl
 Second Edition  July 2002
 Pages: 484
 ISBN 10: 0-596-00289-0 | ISBN 13: 9780596002893

 Mastering Regular Expressions, Third Edition
 By Jeffrey E. F. Friedl
 Third Edition  August 2006
 Pages: 542
 ISBN 10: 0-596-52812-4 | ISBN 13:9780596528126

 Regular Expressions Cookbook
 By Jan Goyvaerts, Steven Levithan
 May 2009
 Pages: 512
 ISBN 10:0-596-52068-9 | ISBN 13: 978-0-596-52068-7

 By Kouji Shibano
 Pages: 1456
 ISBN 4-542-20129-5

 1993 Aug
 Pages: 172
 T1008901080816 ZASSHI 08901-8

 By YAMAGATA Hiroo, Stephen J. Turnbull, Craig Oda, Robert J. Bickel
 June, 2000
 Pages: 376
 ISBN 4-87311-016-5

 MacPerl Power and Ease
 By Vicki Brown, Chris Nandor
 April 1998
 Pages: 350
 ISBN 10: 1881957322 | ISBN 13: 978-1881957324

 Windows NT Shell Scripting
 By Timothy Hill
 April 27, 1998
 Pages: 400
 ISBN 10: 1578700477 | ISBN 13: 9781578700479

 Windows(R) Command-Line Administrators Pocket Consultant, 2nd Edition
 By William R. Stanek
 February 2009
 Pages: 594
 ISBN 10: 0-7356-2262-0 | ISBN 13: 978-0-7356-2262-3

 Other Tools



This software was made referring to software and the document that the following hackers or persons had made. I am thankful to all persons.

 Rick Yamashita, Shift_JIS
 ttp://!1pmWgsL289nm7Shn7cS0jHzA!2225.entry (dead link)
 (add 'h' at head)

 Larry Wall, Perl

 Kazumasa Utashiro,

 Jeffrey E. F. Friedl, Mastering Regular Expressions

 SADAHIRO Tomoyuki, The right way of using Shift_JIS

 Yukihiro "Matz" Matsumoto, YAPC::Asia2006 Ruby on Perl(s)

 jscripter, For jperl users

 Bruce., Unicode in Perl

 Hiroaki Izumi, Perl5.8/Perl5.10 is not useful on the Windows.

 TSUKAMOTO Makio, Perl memo/file path of Windows

 chaichanPaPa, Matching Shift_JIS file name

 SUZUKI Norio, Jperl

 WATANABE Hirofumi, Jperl

 Chuck Houpt, Michiko Nozu, MacJPerl

 Kenichi Ishigaki, Pod-PerldocJp, Welcome to modern Perl world

 Fuji, Goro (gfx), Perl Hackers Hub No.16

 Dan Kogai, Encode module (video) (audio)

 Juerd, Perl Unicode Advice

 daily dayflower, 2008-06-25 perluniadvice

 Jesse Vincent, Compatibility is a virtue

 Tokyo-pm archive