NAME
HP15 - Source code filter to escape HP-15 script
Install and Usage
There are two steps there:
You'll have to download HP15.pm and Ehp15.pm and put it in your perl lib directory.
You'll need to write "use HP15;" at head of the script.
SYNOPSIS
use HP15;
use HP15 ver.sion; --- require minimum version
use HP15 ver.sion.0; --- expects version (match or die)
use HP15 qw(ord reverse getc); --- demand enhanced feature of ord, reverse, and getc
use HP15 ver.sion qw(ord reverse getc);
use HP15 ver.sion.0 qw(ord reverse getc);
# "no HP15;" not supported
or
$ perl HP15.pm HP-15_script.pl > Escaped_script.pl.e
then
$ perl Escaped_script.pl.e
HP-15_script.pl --- script written in HP-15
Escaped_script.pl.e --- escaped script
functions:
HP15::ord(...);
HP15::reverse(...);
HP15::getc(...);
HP15::length(...);
HP15::substr(...);
HP15::index(...);
HP15::rindex(...);
<*>
glob(...);
CORE::chop(...);
CORE::ord(...);
CORE::reverse(...);
CORE::getc(...);
CORE::index(...);
CORE::rindex(...);
emulate Perl5.6 on perl5.00503
use warnings;
use warnings::register;
emulate Perl5.16
use feature qw(fc);
dummy functions:
utf8::upgrade(...);
utf8::downgrade(...);
utf8::encode(...);
utf8::decode(...);
utf8::is_utf8(...);
utf8::valid(...);
bytes::chr(...);
bytes::index(...);
bytes::length(...);
bytes::ord(...);
bytes::rindex(...);
bytes::substr(...);ABSTRACT
HP15 software is "middleware" between perl interpreter and your Perl script written by HP-15.
Perl is optimized for problems which are about 90% working with text and about 10% everything else. But this "text" means US-ASCII text, and popular HP-15 is contained in "everything else."
Please be not disappointed.
The string of Perl3 or later can treat binary data. That is, the string of Perl3 or later can treat HP-15.
Perl is designed to make the easy jobs easy, without making the hard jobs impossible. HP15 software is Perl program designed to make the "easy jobs easy".
By "use HP15;", it automatically interpret your script as HP-15. The various functions of perl including a regular expression can treat HP-15 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.
http://www.javainc.com/projects/jperl/
jPerl - Perl on the JVM
http://www.dzone.com/links/175948.html
Jamie's PERL scripts for bioinformatics
http://code.google.com/p/jperl/
jperl (Jonathan Perl)
https://github.com/jperlNow, 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
ftp://ftp.oreilly.co.jp/pcjp98/watanabe/jperlconf.ppt
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 HP-15 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 jcode.pl
Handles Raw HP-15, 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 its future --- I hope you are too.
JRE: JPerl Runtime Environment
+---------------------------------------+
| JPerl Application Script | Your Script
+---------------------------------------+
| Source Code Filter, Runtime Routine | ex. HP15.pm, Ehp15.pm
+---------------------------------------+
| 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.
[Tokyo.pm] jus Benkyoukai
http://mail.pm.org/pipermail/tokyo-pm/1999-September/001854.html
save as: SJIS.pm
package SJIS;
use Filter::Util::Call;
sub multibyte_filter {
my $status;
if (($status = filter_read()) > 0 ) {
s/([\x81-\x9f\xe0-\xef])([\x40-\x7e\x80-\xfc])/
sprintf("\\x%02x\\x%02x",ord($1),ord($2))
/eg;
}
$status;
}
sub import {
filter_add(\&multibyte_filter);
}
1;I am glad that I could confirm my idea is not so wrong.
Command-line Wildcard Expansion on DOS-like Systems
The default command shells on DOS-like systems (COMMAND.COM or cmd.exe) do not expand wildcard arguments supplied to programs. Instead, import() of Ehp15.pm works well.
in Ehp15.pm
#
# @ARGV wildcard globbing
#
sub import() {
if ($^O =~ /\A (?: MSWin32 | NetWare | symbian | dos ) \z/oxms) {
my @argv = ();
for (@ARGV) {
# has space
if (/\A (?:$q_char)*? [ ] /oxms) {
if (my @glob = Ehp15::glob(qq{"$_"})) {
push @argv, @glob;
}
else {
push @argv, $_;
}
}
# has wildcard metachar
elsif (/\A (?:$q_char)*? [*?] /oxms) {
if (my @glob = Ehp15::glob($_)) {
push @argv, @glob;
}
else {
push @argv, $_;
}
}
# no wildcard globbing
else {
push @argv, $_;
}
}
@ARGV = @argv;
}
}Software Composition
HP15.pm --- source code filter to escape HP-15
Ehp15.pm --- run-time routines for HP15.pm
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
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
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
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
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
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
strict.pm_ --- dummy strict.pm
warnings.pm_ --- poor warnings.pm
warnings/register.pm_ --- poor warnings/register.pm
feature.pm_ --- dummy feature.pmUpper 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. Modern Perl/perl can not always solve the problem. Often, it means an incompatible upgrade part to traditional Perl should be rewound.
Escaping Your Script (You do)
You need write 'use HP15;' in your script.
---------------------------------
Before You do
---------------------------------
(nothing) use HP15;
---------------------------------Escaping Multiple-Octet Code (HP15.pm provides)
Insert chr(0x5c) before @ [ \ ] ^ ` { | and } in multiple-octet of
string in single quote ('', q{}, <<'END' and qw{})
string in double quote ("", qq{}, <<END, <<"END", ``, qx{} and <<`END`)
regexp in single quote (m'', s''', split(''), split(m'') and qr'')
regexp in double quote (//, m//, ??, s///, split(//), split(m//) and qr//)
character in tr/// (tr/// and y///)
ex. Japanese Katakana "SO" like [ `/ ] code is "\x83\x5C" in SJIS
see hex dump
-----------------------------------------
source script "`/" [83 5c]
-----------------------------------------
Here, use SJIS;
hex dump
-----------------------------------------
escaped script "`\/" [83 [5c] 5c]
-----------------------------------------
^--- escape by SJIS software
by the by see hex dump
-----------------------------------------
your eye's "`/\" [83 5c] [5c]
-----------------------------------------
perl eye's "`\/" [83] \[5c]
-----------------------------------------
hex dump
-----------------------------------------
in the perl "`/" [83] [5c]
-----------------------------------------Multiple-Octet Anchoring of Regular Expression (HP15.pm provides)
HP15.pm applies multiple-octet anchoring at beginning of regular expression.
--------------------------------------------------------------------------------
Before After
--------------------------------------------------------------------------------
m/regexp/ m/${Ehp15::anchor}(?:regexp).../
--------------------------------------------------------------------------------Escaping Second Octet (HP15.pm provides)
HP15.pm escapes second octet of multiple-octet character in regular expression.
--------------------------------------------------------------------------------
Before After
--------------------------------------------------------------------------------
m<...`/...> m<...`/\...>
--------------------------------------------------------------------------------Multiple-Octet Character Regular Expression (HP15.pm provides)
HP15.pm clusters multiple-octet character with quantifier, makes cluster from multiple-octet custom character classes. And makes multiple-octet version metasymbol from classic Perl character class shortcuts and POSIX-style character classes.
--------------------------------------------------------------------------------
Before After
--------------------------------------------------------------------------------
m/...MULTIOCT+.../ m/...(?:MULTIOCT)+.../
m/...[AN-EM].../ m/...(?:A[N-Z]|[B-D][A-Z]|E[A-M]).../
m/...\D.../ m/...(?:${Ehp15::eD}).../
m/...[[:^digit:]].../ m/...(?:${Ehp15::not_digit}).../
--------------------------------------------------------------------------------Calling 'Ehp15::ignorecase()' (HP15.pm provides)
HP15.pm applies calling 'Ehp15::ignorecase()' instead of /i modifier.
--------------------------------------------------------------------------------
Before After
--------------------------------------------------------------------------------
m/...$var.../i m/...@{[Ehp15::ignorecase($var)]}.../
--------------------------------------------------------------------------------Character-Oriented Regular Expression
Regular expression works as character-oriented that has no /b modifier.
--------------------------------------------------------------------------------
Before After
--------------------------------------------------------------------------------
/regexp/ /ditto$Ehp15::matched/
m/regexp/ m/ditto$Ehp15::matched/
?regexp? m?ditto$Ehp15::matched?
m?regexp? m?ditto$Ehp15::matched?
$_ =~ ($_ =~ m/ditto$Ehp15::matched/) ?
s/regexp/replacement/ eval{ Ehp15::s_matched(); local $^W=0; my $__r=qq/replacement/; $_="${1}$__r$'"; 1 } :
undef
$_ !~ ($_ !~ m/ditto$Ehp15::matched/) ?
s/regexp/replacement/ 1 :
eval{ Ehp15::s_matched(); local $^W=0; my $__r=qq/replacement/; $_="${1}$__r$'"; undef }
split(/regexp/) Ehp15::split(qr/regexp/)
split(m/regexp/) Ehp15::split(qr/regexp/)
split(qr/regexp/) Ehp15::split(qr/regexp/)
qr/regexp/ qr/ditto$Ehp15::matched/
--------------------------------------------------------------------------------Byte-Oriented Regular Expression
Regular expression works as byte-oriented that has /b modifier.
--------------------------------------------------------------------------------
Before After
--------------------------------------------------------------------------------
/regexp/b /(?:regexp)$Ehp15::matched/
m/regexp/b m/(?:regexp)$Ehp15::matched/
?regexp?b m?regexp$Ehp15::matched?
m?regexp?b m?regexp$Ehp15::matched?
$_ =~ ($_ =~ m/(\G[\x00-\xFF]*?)(?:regexp)$Ehp15::matched/) ?
s/regexp/replacement/b eval{ Ehp15::s_matched(); local $^W=0; my $__r=qq/replacement/; $_="${1}$__r$'"; 1 } :
undef
$_ !~ ($_ !~ m/(\G[\x00-\xFF]*?)(?:regexp)$Ehp15::matched/) ?
s/regexp/replacement/b 1 :
eval{ Ehp15::s_matched(); local $^W=0; my $__r=qq/replacement/; $_="${1}$__r$'"; undef }
split(/regexp/b) split(qr/regexp/)
split(m/regexp/b) split(qr/regexp/)
split(qr/regexp/b) split(qr/regexp/)
qr/regexp/b qr/(?:regexp)$Ehp15::matched/
--------------------------------------------------------------------------------Escaping Character Classes (Ehp15.pm provides)
The character classes are redefined as follows to backward compatibility.
---------------------------------------------------------------
Before After
---------------------------------------------------------------
. ${Ehp15::dot}
${Ehp15::dot_s} (/s modifier)
\d [0-9]
\s [\x09\x0A\x0C\x0D\x20]
\w [0-9A-Z_a-z]
\D ${Ehp15::eD}
\S ${Ehp15::eS}
\W ${Ehp15::eW}
\h [\x09\x20]
\v [\x0A\x0B\x0C\x0D]
\H ${Ehp15::eH}
\V ${Ehp15::eV}
\C [\x00-\xFF]
\X X (so, just 'X')
\R ${Ehp15::eR}
\N ${Ehp15::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:] [\x09\x0A\x0B\x0C\x0D\x20]
[: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:] ${Ehp15::not_alnum}
[:^alpha:] ${Ehp15::not_alpha}
[:^ascii:] ${Ehp15::not_ascii}
[:^blank:] ${Ehp15::not_blank}
[:^cntrl:] ${Ehp15::not_cntrl}
[:^digit:] ${Ehp15::not_digit}
[:^graph:] ${Ehp15::not_graph}
[:^lower:] ${Ehp15::not_lower}
${Ehp15::not_lower_i} (/i modifier)
[:^print:] ${Ehp15::not_print}
[:^punct:] ${Ehp15::not_punct}
[:^space:] ${Ehp15::not_space}
[:^upper:] ${Ehp15::not_upper}
${Ehp15::not_upper_i} (/i modifier)
[:^word:] ${Ehp15::not_word}
[:^xdigit:] ${Ehp15::not_xdigit}
---------------------------------------------------------------Also \b and \B are redefined as follows to backward compatibility.
---------------------------------------------------------------
Before After
---------------------------------------------------------------
\b ${Ehp15::eb}
\B ${Ehp15::eB}
---------------------------------------------------------------Definitions in Ehp15.pm.
---------------------------------------------------------------------------------------------------------------------------------------------------------
After Definition
---------------------------------------------------------------------------------------------------------------------------------------------------------
${Ehp15::anchor} qr{\G(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE])*?}
${Ehp15::dot} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE\x0A])}
${Ehp15::dot_s} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE])}
${Ehp15::eD} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE0-9])}
${Ehp15::eS} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE\x09\x0A\x0C\x0D\x20])}
${Ehp15::eW} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE0-9A-Z_a-z])}
${Ehp15::eH} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE\x09\x20])}
${Ehp15::eV} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE\x0A\x0B\x0C\x0D])}
${Ehp15::eR} qr{(?:\x0D\x0A|[\x0A\x0D])}
${Ehp15::eN} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE\x0A])}
${Ehp15::not_alnum} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE\x30-\x39\x41-\x5A\x61-\x7A])}
${Ehp15::not_alpha} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE\x41-\x5A\x61-\x7A])}
${Ehp15::not_ascii} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE\x00-\x7F])}
${Ehp15::not_blank} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE\x09\x20])}
${Ehp15::not_cntrl} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE\x00-\x1F\x7F])}
${Ehp15::not_digit} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE\x30-\x39])}
${Ehp15::not_graph} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE\x21-\x7F])}
${Ehp15::not_lower} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE\x61-\x7A])}
${Ehp15::not_lower_i} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE])}
${Ehp15::not_print} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE\x20-\x7F])}
${Ehp15::not_punct} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE\x21-\x2F\x3A-\x3F\x40\x5B-\x5F\x60\x7B-\x7E])}
${Ehp15::not_space} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE\x09\x0A\x0B\x0C\x0D\x20])}
${Ehp15::not_upper} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE\x41-\x5A])}
${Ehp15::not_upper_i} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE])}
${Ehp15::not_word} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE\x30-\x39\x41-\x5A\x5F\x61-\x7A])}
${Ehp15::not_xdigit} qr{(?:[\x80-\xA0\xE0-\xFE][\x00-\xFF]|[^\x80-\xA0\xE0-\xFE\x30-\x39\x41-\x46\x61-\x66])}
${Ehp15::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))}
${Ehp15::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 (HP15.pm provides)
HP15.pm 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. http://perl5.git.perl.org/perl.git/commit/2a53d3314d380af5ab5283758219417c6dfa36e9
------------------------------------
Before After
------------------------------------
\N{CHARNAME} N\{CHARNAME}
\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 (HP15.pm and Ehp15.pm provide)
Insert 'Ehp15::' at head of function name. Ehp15.pm provides your script Ehp15::* functions.
-------------------------------------------
Before After Works as
-------------------------------------------
length length Byte
substr substr Byte
pos pos Byte
split Ehp15::split Character
tr/// Ehp15::tr Character
tr///b tr/// Byte
tr///B tr/// Byte
y/// Ehp15::tr Character
y///b tr/// Byte
y///B tr/// Byte
chop Ehp15::chop Character
index Ehp15::index Character
rindex Ehp15::rindex Character
lc Ehp15::lc Character
lcfirst Ehp15::lcfirst Character
uc Ehp15::uc Character
ucfirst Ehp15::ucfirst Character
fc Ehp15::fc Character
chr Ehp15::chr Character
glob Ehp15::glob Character
lstat Ehp15::lstat Character
opendir Ehp15::opendir Character
stat Ehp15::stat Character
unlink Ehp15::unlink Character
chdir Ehp15::chdir Character
do Ehp15::do Character
require Ehp15::require Character
-------------------------------------------
------------------------------------------------------------------------------------------------------------------------
Before After
------------------------------------------------------------------------------------------------------------------------
use Perl::Module; BEGIN { Ehp15::require 'Perl/Module.pm'; Perl::Module->import() if Perl::Module->can('import'); }
use Perl::Module @list; BEGIN { Ehp15::require 'Perl/Module.pm'; Perl::Module->import(@list) if Perl::Module->can('import'); }
use Perl::Module (); BEGIN { Ehp15::require 'Perl/Module.pm'; }
no Perl::Module; BEGIN { Ehp15::require 'Perl/Module.pm'; Perl::Module->unimport() if Perl::Module->can('unimport'); }
no Perl::Module @list; BEGIN { Ehp15::require 'Perl/Module.pm'; Perl::Module->unimport(@list) if Perl::Module->can('unimport'); }
no Perl::Module (); BEGIN { Ehp15::require 'Perl/Module.pm'; }
------------------------------------------------------------------------------------------------------------------------Escaping File Test Operators (HP15.pm and Ehp15.pm provide)
Insert 'Ehp15::' instead of '-' of operator.
Available in MSWin32, MacOS, and UNIX-like systems
--------------------------------------------------------------------------
Before After Meaning
--------------------------------------------------------------------------
-r Ehp15::r File or directory is readable by this (effective) user or group
-w Ehp15::w File or directory is writable by this (effective) user or group
-e Ehp15::e File or directory name exists
-x Ehp15::x File or directory is executable by this (effective) user or group
-z Ehp15::z File exists and has zero size (always false for directories)
-f Ehp15::f Entry is a plain file
-d Ehp15::d Entry is a directory
-t -t The filehandle is a TTY (as reported by the isatty() system function;
filenames can't be tested by this test)
-T Ehp15::T File looks like a "text" file
-B Ehp15::B File looks like a "binary" file
-M Ehp15::M Modification age (measured in days)
-A Ehp15::A Access age (measured in days)
-C Ehp15::C Inode-modification age (measured in days)
-s Ehp15::s File or directory exists and has nonzero size
(the value is the size in bytes)
--------------------------------------------------------------------------
Available in MacOS and UNIX-like systems
--------------------------------------------------------------------------
Before After Meaning
--------------------------------------------------------------------------
-R Ehp15::R File or directory is readable by this real user or group
-W Ehp15::W File or directory is writable by this real user or group
-X Ehp15::X File or directory is executable by this real user or group
-l Ehp15::l Entry is a symbolic link
-S Ehp15::S Entry is a socket
--------------------------------------------------------------------------
Not available in MSWin32 and MacOS
--------------------------------------------------------------------------
Before After Meaning
--------------------------------------------------------------------------
-o Ehp15::o File or directory is owned by this (effective) user
-O Ehp15::O File or directory is owned by this real user
-p Ehp15::p Entry is a named pipe (a "fifo")
-b Ehp15::b Entry is a block-special file (like a mountable disk)
-c Ehp15::c Entry is a character-special file (like an I/O device)
-u Ehp15::u File or directory is setuid
-g Ehp15::g File or directory is setgid
-k Ehp15::k File or directory has the sticky bit set
---------------------------------------------------------------------------w only inspects the read-only file attribute (FILE_ATTRIBUTE_READONLY), which determines whether the directory can be deleted, not whether it can be written to. Directories always have read and write access unless denied by discretionary access control lists (DACLs). (MSWin32) -R, -W, -X, -O are indistinguishable from -r, -w, -x, -o. (MSWin32) -g, -k, -l, -u, -A are not particularly meaningful. (MSWin32) -x (or -X) determine if a file ends in one of the executable suffixes. -S is meaningless. (MSWin32)
As of Perl 5.00503, as a form of purely syntactic sugar, you can stack file test operators, in a way that -w -x $file is equivalent to -x $file && -w _ .
if ( -w -r $file ) {
print "The file is both readable and writable!\n";
}Escaping Function Name (You do)
You need write 'HP15::' at head of function name when you want character- oriented function. See 'Character-Oriented Functions'.
--------------------------------------------------------
Function Character-Oriented Description
--------------------------------------------------------
ord HP15::ord
reverse HP15::reverse
getc HP15::getc
length HP15::length
substr HP15::substr
index HP15::index See 'About Indexes'
rindex HP15::rindex See 'About Rindexes'
--------------------------------------------------------
About Indexes
-------------------------------------------------------------------------
Function Works as Returns as Description
-------------------------------------------------------------------------
index Character Byte JPerl semantics (most useful)
(same as Ehp15::index)
HP15::index Character Character Character-oriented semantics
CORE::index Byte Byte Byte-oriented semantics
(nothing) Byte Character (most useless)
-------------------------------------------------------------------------
About Rindexes
-------------------------------------------------------------------------
Function Works as Returns as Description
-------------------------------------------------------------------------
rindex Character Byte JPerl semantics (most useful)
(same as Ehp15::rindex)
HP15::rindex Character Character Character-oriented semantics
CORE::rindex Byte Byte Byte-oriented semantics
(nothing) Byte Character (most useless)
-------------------------------------------------------------------------Character-Oriented Functions
Ordinal Value of Character
$ord = HP15::ord($string); This function returns the numeric value (ASCII or HP-15 character) of the first character of $string, not Unicode. If $string is omitted, it uses $_. The return value is always unsigned. If you import ord "use HP15 qw(ord);", ord of your script will be rewritten in HP15::ord. HP15::ord is not compatible with ord of JPerl. Even if you do not know this function, there is no problem. This function can be created with a unpack function as before.Reverse List or String
@reverse = HP15::reverse(@list); $reverse = HP15::reverse(@list); In list context, this function returns a list value consisting of the elements of @list in the opposite order. In scalar context, the function concatenates all the elements of @list and then returns the reverse of that resulting string, character by character. If you import reverse "use HP15 qw(reverse);", reverse of your script will be rewritten in HP15::reverse. HP15::reverse is not compatible with reverse of JPerl. Even if you do not know this function, there is no problem. This function can be created with $rev = join('', reverse(split(//, $jstring))); as before.Returns Next Character
$getc = HP15::getc(FILEHANDLE); $getc = HP15::getc($filehandle); $getc = HP15::getc; This function returns the next character from the input file attached to FILEHANDLE. It returns undef at end-of-file, or if an I/O error was encountered. If FILEHANDLE is omitted, the function reads from STDIN. This function is somewhat slow, but it's occasionally useful for single-character input from the keyboard -- provided you manage to get your keyboard input unbuffered. This function requests unbuffered input from the standard I/O library. Unfortunately, the standard I/O library is not so standard as to provide a portable way to tell the underlying operating system to supply unbuffered keyboard input to the standard I/O system. To do that, you have to be slightly more clever, and in an operating-system-dependent fashion. Under Unix you might say this: if ($BSD_STYLE) { system "stty cbreak </dev/tty >/dev/tty 2>&1"; } else { system "stty", "-icanon", "eol", "\001"; } $key = HP15::getc; if ($BSD_STYLE) { system "stty -cbreak </dev/tty >/dev/tty 2>&1"; } else { system "stty", "icanon", "eol", "^@"; # ASCII NUL } print "\n"; This code puts the next character typed on the terminal in the string $key. If your stty program has options like cbreak, you'll need to use the code where $BSD_STYLE is true. Otherwise, you'll need to use the code where it is false. If you import getc "use HP15 qw(getc);", getc of your script will be rewritten in HP15::getc. HP15::getc is not compatible with getc of JPerl. Even if you do not know this function, there is no problem. This function can be created with CORE::getc as before.Length by HP-15 Character
$length = HP15::length($string); $length = HP15::length(); This function returns the length in characters (programmer-visible characters) of the scalar value $string. If $string is omitted, it returns the HP15::length of $_. Do not try to use HP15::length to find the size of an array or hash. Use scalar @array for the size of an array, and scalar keys %hash for the number of key/value pairs in a hash. (The scalar is typically omitted when redundant.) To find the length of a string in bytes rather than characters, say simply: $bytes = length($string); Even if you do not know this function, there is no problem. This function can be created with $len = split(//, $jstring); as before.Substr by HP-15 Character
$substr = HP15::substr($string,$offset,$length,$replacement); $substr = HP15::substr($string,$offset,$length); $substr = HP15::substr($string,$offset); This function extracts a substring out of the string given by $string and returns it. The substring is extracted starting at $offset characters from the front of the string. If $offset is negative, the substring starts that far from the end of the string instead. If $length is omitted, everything to the end of the string is returned. If $length is negative, the length is calculated to leave that many characters off the end of the string. Otherwise, $length indicates the length of the substring to extract, which is sort of what you'd expect. For bytes, use the substr from built-in Perl functions. An alternative to using HP15::substr as an lvalue is to specify the $replacement string as the fourth argument. This lets you replace parts of the $string and return what was there before in one operation, just as you can with splice. The next example also replaces the last character of $var with "Curly" and puts that replaced character into $oldstr: $oldstr = HP15::substr($var, -1, 1, "Curly"); To prepend the string "Larry" to the current value of $var, use: HP15::substr($var, 0, 0, "Larry"); To instead replace the first character of $var with "Moe", use: HP15::substr($var, 0, 1, "Moe"); And, finally, to replace the last character of $var with "Curly", use: HP15::substr($var, -1, 1, "Curly");Index by HP-15 Character
$index = HP15::index($string,$substring,$offset); $index = HP15::index($string,$substring); This function searches for one string within another. It returns the character position of the first occurrence of $substring in $string. The $offset, if specified, says how many characters from the start to skip before beginning to look. Positions are based at 0. If the substring is not found, the function returns one less than the base, ordinarily -1. To work your way through a string, you might say: $pos = -1; while (($pos = HP15::index($string, $lookfor, $pos)) > -1) { print "Found at $pos\n"; $pos++; } This function is realizable with a regular expression as before. There is no problem even if you do not know this function.Rindex by HP-15 Character
$rindex = HP15::rindex($string,$substring,$offset); $rindex = HP15::rindex($string,$substring); This function works just like HP15::index except that it returns the character position of the last occurrence of $substring in $string (a reverse HP15::index). The function returns -1 if $substring is not found. $offset, if specified, is the rightmost character position that may be returned. To work your way through a string backward, say: $pos = HP15::length($string); while (($pos = HP15::rindex($string, $lookfor, $pos)) >= 0) { print "Found at $pos\n"; $pos--; } This function is realizable with a regular expression as before. There is no problem even if you do not know this function.Filename Globbing
@glob = glob($expr); $glob = glob($expr); @glob = glob; $glob = glob; @glob = <*>; $glob = <*>; Performs filename expansion (globbing) on $expr, returning the next successive name on each call. If $expr is omitted, $_ is globbed instead. This operator is implemented via the Ehp15::glob() function. See Ehp15::glob of Ehp15.pm for details.
Byte-Oriented Functions
Chop Byte String
$byte = CORE::chop($string); $byte = CORE::chop(@list); $byte = CORE::chop; This function chops off the last byte of a string variable and returns the byte chopped. The CORE::chop operator is used primarily to remove the newline from the end of an input record, and is more efficient than using a substitution (s/\n$//). If that's all you're doing, then it would be safer to use chomp, since CORE::chop always shortens the string no matter what's there, and chomp is more selective. You cannot CORE::chop a literal, only a variable. If you CORE::chop a @list of variables, each string in the list is chopped: @lines = `cat myfile`; CORE::chop @lines; You can CORE::chop anything that is an lvalue, including an assignment: CORE::chop($cwd = `pwd`); CORE::chop($answer = <STDIN>); This is different from: $answer = CORE::chop($temp = <STDIN>); # WRONG which puts a newline into $answer because CORE::chop returns the byte chopped, not the remaining string (which is in $tmp). One way to get the result intended here is with substr: $answer = substr <STDIN>, 0, -1; But this is more commonly written as: CORE::chop($answer = <STDIN>); In the most general case, CORE::chop can be expressed in terms of substr: $last_byte = CORE::chop($var); $last_byte = substr($var, -1, 1, ""); # same thing Once you understand this equivalence, you can use it to do bigger chops. To CORE::chop more than one byte, use substr as an lvalue, assigning a null string. The following removes the last five bytes of $caravan: substr($caravan, -5) = ""; The negative subscript causes substr to count from the end of the string instead of the beginning. If you wanted to save the bytes so removed, you could use the four-argument form of substr, creating something of a quintuple CORE::chop: $tail = substr($caravan, -5, 5, ""); If no argument is given, the function chops the $_ variable.Ordinal Value of Byte
$ord = CORE::ord($expr); This function returns the numeric value of the first byte of $expr, regardless of "use HP15 qw(ord);" exists or not. If $expr is omitted, it uses $_. The return value is always unsigned. If you want a signed value, use unpack('c',$expr). If you want all the bytes of the string converted to a list of numbers, use unpack('C*',$expr) instead.Reverse List or Byte String
@reverse = CORE::reverse(@list); $reverse = CORE::reverse(@list); In list context, this function returns a list value consisting of the elements of @list in the opposite order. In scalar context, the function concatenates all the elements of @list and then returns the reverse of that resulting string, byte by byte, regardless of "use HP15 qw(reverse);" exists or not.Returns Next Byte
$getc = CORE::getc(FILEHANDLE); $getc = CORE::getc($filehandle); $getc = CORE::getc; This function returns the next byte from the input file attached to FILEHANDLE. It returns undef at end-of-file, or if an I/O error was encountered. If FILEHANDLE is omitted, the function reads from STDIN. This function is somewhat slow, but it's occasionally useful for single-byte input from the keyboard -- provided you manage to get your keyboard input unbuffered. This function requests unbuffered input from the standard I/O library. Unfortunately, the standard I/O library is not so standard as to provide a portable way to tell the underlying operating system to supply unbuffered keyboard input to the standard I/O system. To do that, you have to be slightly more clever, and in an operating-system-dependent fashion. Under Unix you might say this: if ($BSD_STYLE) { system "stty cbreak </dev/tty >/dev/tty 2>&1"; } else { system "stty", "-icanon", "eol", "\001"; } $key = CORE::getc; if ($BSD_STYLE) { system "stty -cbreak </dev/tty >/dev/tty 2>&1"; } else { system "stty", "icanon", "eol", "^@"; # ASCII NUL } print "\n"; This code puts the next single-byte typed on the terminal in the string $key. If your stty program has options like cbreak, you'll need to use the code where $BSD_STYLE is true. Otherwise, you'll need to use the code where it is false.Index by Byte String
$index = CORE::index($string,$substring,$offset); $index = CORE::index($string,$substring); This function searches for one byte string within another. It returns the position of the first occurrence of $substring in $string. The $offset, if specified, says how many bytes from the start to skip before beginning to look. Positions are based at 0. If the substring is not found, the function returns one less than the base, ordinarily -1. To work your way through a string, you might say: $pos = -1; while (($pos = CORE::index($string, $lookfor, $pos)) > -1) { print "Found at $pos\n"; $pos++; }Rindex by Byte String
$rindex = CORE::rindex($string,$substring,$offset); $rindex = CORE::rindex($string,$substring); This function works just like CORE::index except that it returns the position of the last occurrence of $substring in $string (a reverse CORE::index). The function returns -1 if not $substring is found. $offset, if specified, is the rightmost position that may be returned. To work your way through a string backward, say: $pos = CORE::length($string); while (($pos = CORE::rindex($string, $lookfor, $pos)) >= 0) { print "Found at $pos\n"; $pos--; }
Un-Escaping bytes::* Functions (HP15.pm provides)
HP15.pm 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 (Ehp15.pm provides)
Ehp15.pm does "BEGIN { unshift @INC, '/Perl/site/lib/HP15' }" at head. Store the standard module modified for HP15 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/HP15 and change 'use utf8;' to 'use HP15;' 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 Ehp15.pm provides these
functions.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
utf8::encode($string); 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
SJIS_NONBLOCK.
Example:
SET SJIS_NONBLOCK=1
(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.pm
warnings/register.pm_ --> warnings/register.pmPerl5.16 Emulation
Using feature pragma by rename files.
feature.pm_ --> feature.pmBUGS, LIMITATIONS, and COMPATIBILITY
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 HP15 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.
format
Function "format" can't handle multiple-octet code same as original Perl.
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.
chdir
Function chdir() can always be executed with perl5.005.
There are the following limitations for DOS-like system(any of MSWin32, NetWare, symbian, dos).
On perl5.006 or perl5.00800, if path is ended by chr(0x5C), it needs jacode.pl library.
On perl5.008001 or later, perl5.010, perl5.012, perl5.014, perl5.016, if path is ended by chr(0x5C), it needs Win32 module. Chdir succeeds when a short path name can be acquired according to Win32::GetShortPathName(). However, the current directory is a short path name.
see also, Bug #81839 chdir does not work with chr(0x5C) at end of path http://bugs.activestate.com/show_bug.cgi?id=81839
HP15::substr as Lvalue
HP15::substr differs from CORE::substr, and cannot be used as a lvalue. To change part of a string, you can use the optional fourth argument which is the replacement string.
HP15::substr($string, 13, 4, "JPerl");
Special Variables $` and $& need /( Capture All )/
Because $` and $& use $1. ------------------------------------------------------------------------------------------- Before After Works as ------------------------------------------------------------------------------------------- $` Ehp15::PREMATCH() CORE::substr($&,0,CORE::length($&)-CORE::length($1)) $PREMATCH Ehp15::PREMATCH() CORE::substr($&,0,CORE::length($&)-CORE::length($1)) ${^PREMATCH} Ehp15::PREMATCH() CORE::substr($&,0,CORE::length($&)-CORE::length($1)) $& Ehp15::MATCH() $1 $MATCH Ehp15::MATCH() $1 ${^MATCH} Ehp15::MATCH() $1 $' Ehp15::POSTMATCH() $' $POSTMATCH Ehp15::POSTMATCH() $' ${^POSTMATCH} Ehp15::POSTMATCH() $' -------------------------------------------------------------------------------------------Limitation of Regular Expression
This software has limitation from \G in multibyte anchoring. On perl5.006, perl5.008, perl5.010, perl5.012, perl5.014 and perl5.016 it doesn't match in the place in which it should match at over 32,767 octets. Moreover, at that time, neither the error nor warning are displayed.
see also, Bug #89792 \G can't treat over 32,767 octets http://bugs.activestate.com/show_bug.cgi?id=89792
Empty Variable in Regular Expression
Unlike literal null string, an interpolated variable evaluated to the empty string can't use the most recent pattern from a previous successful regular expression.
Limitation of ?? and m??
Multibyte character needs ( ) which is before {n,m} {n,} {n} * and + in ?? or m??. As a result, you need to rewrite a script about $1,$2,$3,... You cannot use (?: ) ? {n,m}? {n,}? and {n}? in ?? and m??, because delimiter of m?? is '?'.
Look-behind Assertion
The look-behind assertion like (?<=[A-Z]) is not prevented from matching trail octet of the previous multiple-octet code.
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.
${^WIN32_SLOPPY_STAT} is ignored
Even if ${^WIN32_SLOPPY_STAT} is set to a true value, file test functions Ehp15::*(), Ehp15::lstat(), and Ehp15::stat() on Microsoft Windows open the file for the path which has chr(0x5c) at end.
AUTHOR
INABA Hitoshi <ina@cpan.org>
This project was originated by INABA Hitoshi.
LICENSE AND COPYRIGHT
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 |
+--------------------------------------------+
http://perl-users.jp/articles/advent-calendar/2010/casual/4
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 past 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.
It has already been achieved by HP-15 designed for combining with old byte-oriented ASCII.
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-orientedThere 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,HP15 +--------------+-------+-------+-------+-------+-------+ | data | Old | Old | New | Old | New | +--------------+-------+-------+-------+-------+-------+ | script | Old | Old | New | +--------------+-------+---------------+---------------+ | interpreter | Old | New | +--------------+-------+-------------------------------+ Old --- Old byte-oriented New --- New character-orientedThe 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.
Contrasting is Encode module and describing "use HP15;" on this software, in this case, a new description is necessary.
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.
(2) Time of processing regular expression by escaped script while multibyte anchoring.
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.
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 nest time.
--- Learning Perl 6th EditionSEE ALSO
PERL PUROGURAMINGU
Larry Wall, Randal L.Schwartz, Yoshiyuki Kondo
December 1997
ISBN 4-89052-384-7
http://www.context.co.jp/~cond/books/old-books.html
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
http://shop.oreilly.com/product/9781565921498.do
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
http://shop.oreilly.com/product/9780596000271.do
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
http://www.network-theory.co.uk/perl/language/
Perl Pocket Reference, 5th Edition
By Johan Vromans
Publisher: O'Reilly Media
Released: July 2011
Pages: 102
http://shop.oreilly.com/product/0636920018476.do
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
http://shop.oreilly.com/product/9780596004927.do
Perl Cookbook, Second Edition
By Tom Christiansen, Nathan Torkington
Second Edition August 2003
Pages: 964
ISBN 10: 0-596-00313-7 | ISBN 13: 9780596003135
http://shop.oreilly.com/product/9780596003135.do
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
http://shop.oreilly.com/product/9780596002411.do
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
http://shop.oreilly.com/product/9781565923249.do
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
http://shop.oreilly.com/product/9780596520113.do
Learning Perl, 6th Edition
By Randal L. Schwartz, brian d foy, Tom Phoenix
June 2011
Pages: 390
ISBN-10: 1449303587 | ISBN-13: 978-1449303587
http://shop.oreilly.com/product/0636920018452.do
Perl RESOURCE KIT UNIX EDITION
Futato, Irving, Jepson, Patwardhan, Siever
ISBN 10: 1-56592-370-7
http://shop.oreilly.com/product/9781565923706.do
MODAN Perl NYUMON
By Daisuke Maki
2009/2/10
Pages: 344
ISBN 10: 4798119172 | ISBN 13: 978-4798119175
http://www.seshop.com/product/detail/10250/
Understanding Japanese Information Processing
By Ken Lunde
January 1900
Pages: 470
ISBN 10: 1-56592-043-0 | ISBN 13: 9781565920439
http://shop.oreilly.com/product/9781565920439.do
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
http://shop.oreilly.com/product/9781565922242.do
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
http://shop.oreilly.com/product/9780596002893.do
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
http://shop.oreilly.com/product/9780596528126.do
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
http://shop.oreilly.com/product/9780596520694.do
JIS KANJI JITEN
Kouji Shibano
Pages: 1456
ISBN 4-542-20129-5
http://www.webstore.jsa.or.jp/lib/lib.asp?fn=/manual/mnl01_12.htm
UNIX MAGAZINE
1993 Aug
Pages: 172
T1008901080816 ZASSHI 08901-8
http://ascii.asciimw.jp/books/books/detail/978-4-7561-5008-0.shtml
MacPerl Power and Ease
By Vicki Brown, Chris Nandor
April 1998
Pages: 350
ISBN 10: 1881957322 | ISBN 13: 978-1881957324
http://www.amazon.com/Macperl-Power-Ease-Vicki-Brown/dp/1881957322
Other Tools
http://search.cpan.org/dist/jacode/
http://search.cpan.org/dist/Char/
BackPAN
http://backpan.perl.org/authors/id/I/IN/INA/ACKNOWLEDGEMENTS
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://furukawablog.spaces.live.com/Blog/cns!1pmWgsL289nm7Shn7cS0jHzA!2225.entry (dead link)
ttp://shino.tumblr.com/post/116166805/1981-us-jis
(add 'h' at head)
http://www.wdic.org/w/WDIC/%E3%82%B7%E3%83%95%E3%83%88JIS
Larry Wall, Perl
http://www.perl.org/
Kazumasa Utashiro, jcode.pl
ftp://ftp.iij.ad.jp/pub/IIJ/dist/utashiro/perl/
http://log.utashiro.com/pub/2006/07/jkondo_a580.html
Jeffrey E. F. Friedl, Mastering Regular Expressions
http://regex.info/
SADAHIRO Tomoyuki, The right way of using Shift_JIS
http://homepage1.nifty.com/nomenclator/perl/shiftjis.htm
http://search.cpan.org/~sadahiro/
Yukihiro "Matz" Matsumoto, YAPC::Asia2006 Ruby on Perl(s)
http://www.rubyist.net/~matz/slides/yapc2006/
jscripter, For jperl users
http://homepage1.nifty.com/kazuf/jperl.html
Bruce., Unicode in Perl
http://www.rakunet.org/tsnet/TSabc/18/546.html
Hiroaki Izumi, Perl5.8/Perl5.10 is not useful on the Windows.
http://www.aritia.jp/hizumi/perl/perlwin.html
TSUKAMOTO Makio, Perl memo/file path of Windows
http://digit.que.ne.jp/work/wiki.cgi?Perl%E3%83%A1%E3%83%A2%2FWindows%E3%81%A7%E3%81%AE%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB%E3%83%91%E3%82%B9
chaichanPaPa, Matching Shift_JIS file name
http://d.hatena.ne.jp/chaichanPaPa/20080802/1217660826
SUZUKI Norio, Jperl
http://homepage2.nifty.com/kipp/perl/jperl/
WATANABE Hirofumi, Jperl
http://www.cpan.org/src/5.0/jperl/
http://search.cpan.org/~watanabe/
ftp://ftp.oreilly.co.jp/pcjp98/watanabe/jperlconf.ppt
Chuck Houpt, Michiko Nozu, MacJPerl
http://habilis.net/macjperl/index.j.html
Kenichi Ishigaki, Pod-PerldocJp, Welcome to modern Perl world
http://search.cpan.org/dist/Pod-PerldocJp/
http://gihyo.jp/dev/serial/01/modern-perl/0031
http://gihyo.jp/dev/serial/01/modern-perl/0032
http://gihyo.jp/dev/serial/01/modern-perl/0033
Dan Kogai, Encode module
http://search.cpan.org/dist/Encode/
http://www.archive.org/details/YAPCAsia2006TokyoPerl58andUnicodeMythsFactsandChanges (video)
http://yapc.g.hatena.ne.jp/jkondo/ (audio)
Juerd, Perl Unicode Advice
http://juerd.nl/site.plp/perluniadvice
daily dayflower, 2008-06-25 perluniadvice
http://d.hatena.ne.jp/dayflower/20080625/1214374293
Jesse Vincent, Compatibility is a virtue
http://www.nntp.perl.org/group/perl.perl5.porters/2010/05/msg159825.html
Tokyo-pm archive
http://mail.pm.org/pipermail/tokyo-pm/
http://mail.pm.org/pipermail/tokyo-pm/1999-September/001844.html
http://mail.pm.org/pipermail/tokyo-pm/1999-September/001854.html
ruby-list
http://blade.nagaokaut.ac.jp/ruby/ruby-list/index.shtml
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/2440
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/2446
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/2569
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/9427
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/9431
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/10500
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/10501
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/10502
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/12385
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/12392
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/12393
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/19156