Gecko [ tsuru-no-tsurugi.tokyo ]

Name	Size	Permission	Date
App	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Archive	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Attribute	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
B	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
CPAN	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Carp	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Class	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Compress	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Config	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
DBM_Filter	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Devel	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Digest	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Encode	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Exporter	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
ExtUtils	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
File	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Filter	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Getopt	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
HTTP	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
I18N	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
IO	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
IPC	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
JSON	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Locale	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Math	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Memoize	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Module	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Net	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Params	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Parse	[ DIR ]	drwxr-xr-x	2024-02-17 03:44
Perl	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
PerlIO	[ DIR ]	drwxr-xr-x	2024-02-17 03:44
Pod	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Search	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
TAP	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Term	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Test	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Test2	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Text	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Thread	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Tie	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Time	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
Unicode	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
User	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
autodie	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
encoding	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
overload	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
pod	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
unicore	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
version	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
warnings	[ DIR ]	drwxr-xr-x	2026-06-26 06:39
AnyDBM_File.pm	2.56 KB	-rw-r--r--	2026-06-23 17:11
AutoLoader.pm	15.43 KB	-rw-r--r--	2026-06-23 17:11
AutoSplit.pm	19.18 KB	-rw-r--r--	2026-06-23 17:11
Benchmark.pm	30.3 KB	-rw-r--r--	2026-06-23 17:11
CORE.pod	3.11 KB	-rw-r--r--	2026-06-23 17:11
CPAN.pm	143.09 KB	-rw-r--r--	2026-06-23 17:11
Carp.pm	35.14 KB	-rw-r--r--	2026-06-23 17:11
DB.pm	18.48 KB	-rw-r--r--	2026-06-23 17:11
DBM_Filter.pm	14.05 KB	-rw-r--r--	2026-06-23 17:11
Digest.pm	10.96 KB	-rw-r--r--	2026-06-23 17:11
DirHandle.pm	2.04 KB	-rw-r--r--	2026-06-23 17:11
Dumpvalue.pm	17.25 KB	-rw-r--r--	2026-06-23 17:11
English.pm	4.65 KB	-rw-r--r--	2026-06-23 17:11
Env.pm	5.44 KB	-rw-r--r--	2026-06-23 17:11
Exporter.pm	18.33 KB	-rw-r--r--	2026-06-23 17:11
Fatal.pm	57.7 KB	-rw-r--r--	2026-06-23 17:11
FileCache.pm	5.42 KB	-rw-r--r--	2026-06-23 17:11
FileHandle.pm	6.63 KB	-rw-r--r--	2026-06-23 17:11
FindBin.pm	4.54 KB	-rw-r--r--	2026-06-23 17:11
Internals.pod	2.51 KB	-rw-r--r--	2026-06-23 17:11
Memoize.pm	35.34 KB	-rw-r--r--	2026-06-23 17:11
NEXT.pm	18.54 KB	-rw-r--r--	2026-06-23 17:11
PerlIO.pm	14.1 KB	-rw-r--r--	2026-06-23 17:11
Safe.pm	24.76 KB	-rw-r--r--	2026-06-23 17:11
SelectSaver.pm	1.05 KB	-rw-r--r--	2026-06-23 17:11
SelfLoader.pm	17.27 KB	-rw-r--r--	2026-06-23 17:11
Symbol.pm	4.79 KB	-rw-r--r--	2026-06-23 17:11
Test.pm	29.34 KB	-rw-r--r--	2026-06-23 17:11
Test2.pm	6.24 KB	-rw-r--r--	2026-06-23 17:11
Thread.pm	8.09 KB	-rw-r--r--	2026-06-23 17:11
UNIVERSAL.pm	6.44 KB	-rw-r--r--	2026-06-23 17:11
XSLoader.pm	10.99 KB	-rw-r--r--	2026-06-23 17:11
_charnames.pm	33.35 KB	-rw-r--r--	2026-06-23 17:11
autodie.pm	12.14 KB	-rw-r--r--	2026-06-23 17:11
autouse.pm	4.14 KB	-rw-r--r--	2026-06-23 17:11
base.pm	10.7 KB	-rw-r--r--	2026-06-23 17:11
bigint.pm	22.85 KB	-rw-r--r--	2026-06-23 17:11
bignum.pm	20.64 KB	-rw-r--r--	2026-06-23 17:11
bigrat.pm	15.78 KB	-rw-r--r--	2026-06-23 17:11
blib.pm	2.01 KB	-rw-r--r--	2026-06-23 17:11
bytes.pm	3.69 KB	-rw-r--r--	2026-06-23 17:11
bytes_heavy.pl	758 B	-rw-r--r--	2026-06-23 17:11
charnames.pm	20.44 KB	-rw-r--r--	2026-06-23 17:11
constant.pm	14.38 KB	-rw-r--r--	2026-06-23 17:11
deprecate.pm	4.92 KB	-rw-r--r--	2026-06-23 17:11
diagnostics.pm	18.85 KB	-rw-r--r--	2026-06-23 17:11
dumpvar.pl	15.19 KB	-rw-r--r--	2026-06-23 17:11
experimental.pm	7.42 KB	-rw-r--r--	2026-06-23 17:11
feature.pm	22.11 KB	-rw-r--r--	2026-06-23 17:11
fields.pm	9.25 KB	-rw-r--r--	2026-06-23 17:11
filetest.pm	3.91 KB	-rw-r--r--	2026-06-23 17:11
if.pm	3.54 KB	-rw-r--r--	2026-06-23 17:11
integer.pm	3.18 KB	-rw-r--r--	2026-06-23 17:11
less.pm	3.13 KB	-rw-r--r--	2026-06-23 17:11
locale.pm	4.77 KB	-rw-r--r--	2026-06-23 17:11
meta_notation.pm	2.07 KB	-rw-r--r--	2026-06-23 17:11
ok.pm	967 B	-rw-r--r--	2026-06-23 17:11
open.pm	8.31 KB	-rw-r--r--	2026-06-23 17:11
overload.pm	52.1 KB	-rw-r--r--	2026-06-23 17:11
overloading.pm	1.77 KB	-rw-r--r--	2026-06-23 17:11
parent.pm	2.64 KB	-rw-r--r--	2026-06-23 17:11
perl5db.pl	309.86 KB	-rw-r--r--	2026-06-23 17:11
perlfaq.pm	77 B	-rw-r--r--	2026-06-23 17:11
sigtrap.pm	8.53 KB	-rw-r--r--	2026-06-23 17:11
sort.pm	3.82 KB	-rw-r--r--	2026-06-23 17:11
strict.pm	4.67 KB	-rw-r--r--	2026-06-23 17:11
subs.pm	945 B	-rw-r--r--	2026-06-23 17:11
utf8.pm	10.5 KB	-rw-r--r--	2026-06-23 17:11
vars.pm	2.4 KB	-rw-r--r--	2026-06-23 17:11
version.pm	1.93 KB	-rw-r--r--	2026-06-23 17:11
version.pod	9.6 KB	-rw-r--r--	2026-06-23 17:11
vmsish.pm	4.21 KB	-rw-r--r--	2026-06-23 17:11
warnings.pm	51.97 KB	-rw-r--r--	2026-06-23 17:11

Rename

use strict;
use warnings;

# A tiny private library routine which is a helper to several Perl core
# modules, to allow a paradigm to be implemented in a single place.  The name,
# contents, or even the existence of this file may be changed at any time and
# are NOT to be used by anything outside the Perl core.

sub _meta_notation ($) {

# Returns a copy of the input string with the nonprintable characters
    # below 0x100 changed into printables.  Any ASCII printables or above 0xFF
    # are unchanged.  (XXX Probably above-Latin1 characters should be
    # converted to \X{...})
    #
    # \0 .. \x1F (which are "\c@" .. "\c_") are changed into ^@, ^A, ^B, ...
    # ^Z, ^[, ^\, ^], ^^, ^_
    # \c? is changed into ^?.
    #
    # The above accounts for all the ASCII-range nonprintables.
    #
    # On ASCII platforms, the upper-Latin1-range characters are converted to
    # Meta notation, so that \xC1 becomes 'M-A', \xE2 becomes 'M-b', etc.
    # This is how it always has worked, so is continued that way for backwards
    # compatibility.  The range \x80 .. \x9F becomes M-^@ .. M-^A, M-^B, ...
    # M-^Z, M-^[, M-^\, M-^], M-^, M-^_
    #
    # On EBCDIC platforms, the upper-Latin1-range characters are converted
    # into '\x{...}'  Meta notation doesn't make sense on EBCDIC platforms
    # because the ASCII-range printables are a mixture of upper bit set or
    # not.  [A-Za-Z0-9] all have the upper bit set.  The underscore likely
    # doesn't; and other punctuation may or may not.  There's no simple
    # pattern.

my $string = shift;

$string =~ s/([\0-\037])/
               sprintf("^%c",utf8::unicode_to_native(ord($1)^64))/xeg;
    $string =~ s/\c?/^?/g;
    if (ord("A") == 65) {
        $string =~ s/([\200-\237])/sprintf("M-^%c",(ord($1)&0177)^64)/eg;
        $string =~ s/([\240-\377])/sprintf("M-%c"  ,ord($1)&0177)/eg;
    }
    else {
        no warnings 'experimental::regex_sets';
        # Leave alone things above \xff
        $string =~ s/( (?[ [\x00-\xFF] & [:^print:]])) /
                  sprintf("\\x{%X}", ord($1))/xaeg;
    }

return $string;
}
1