/ 
perl-5.41.3
⭐ Starred 2013
/ Encode::TW
Security Advisories (1)
CVE-2025-40909 (2025-05-30)

Perl threads have a working directory race condition where file operations may target unintended paths. If a directory handle is open at thread creation, the process-wide current working directory is temporarily changed in order to clone that handle for the new thread, which is visible from any third (or more) thread already running. This may lead to unintended operations such as loading code or accessing files from unexpected locations, which a local attacker may be able to exploit. The bug was introduced in commit 11a11ecf4bea72b17d250cfb43c897be1341861e and released in Perl version 5.13.6

NAME

Encode::TW - Taiwan-based Chinese Encodings

SYNOPSIS

use Encode qw/encode decode/; 
$big5 = encode("big5", $utf8); # loads Encode::TW implicitly
$utf8 = decode("big5", $big5); # ditto

DESCRIPTION

This module implements tradition Chinese charset encodings as used in Taiwan and Hong Kong. Encodings supported are as follows.

Canonical   Alias		Description
--------------------------------------------------------------------
big5-eten   /\bbig-?5$/i	Big5 encoding (with ETen extensions)
        /\bbig5-?et(en)?$/i
        /\btca-?big5$/i
big5-hkscs  /\bbig5-?hk(scs)?$/i
            /\bhk(scs)?-?big5$/i
                              Big5 + Cantonese characters in Hong Kong
MacChineseTrad		Big5 + Apple Vendor Mappings
cp950		                Code Page 950 
                              = Big5 + Microsoft vendor mappings
--------------------------------------------------------------------

To find out how to use this module in detail, see Encode.

NOTES

Due to size concerns, EUC-TW (Extended Unix Character), CCCII (Chinese Character Code for Information Interchange), BIG5PLUS (CMEX's Big5+) and BIG5EXT (CMEX's Big5e) are distributed separately on CPAN, under the name Encode::HanExtra. That module also contains extra China-based encodings.

BUGS

Since the original big5 encoding (1984) is not supported anywhere (glibc and DOS-based systems uses big5 to mean big5-eten; Microsoft uses big5 to mean cp950), a conscious decision was made to alias big5 to big5-eten, which is the de facto superset of the original big5.

The CNS11643 encoding files are not complete. For common CNS11643 manipulation, please use EUC-TW in Encode::HanExtra, which contains planes 1-7.

The ASCII region (0x00-0x7f) is preserved for all encodings, even though this conflicts with mappings by the Unicode Consortium.

SEE ALSO

Encode