perl-unicode

Re: possible patch for Perl 5.8.2's Alias.pm

2003-10-30 01:30:15
Jarkko Hietaniemi <jhi(_at_)iki(_dot_)fi> writes:
a year ago, there was a discussion on this list about Encode not
recognizing "TIS-620" as alias for "iso-8859-11":

http://nntp.x.perl.org/group/perl.unicode/1656

In the latest release of Encode::Alias (1.38 from Encode 1.9801,
included in Perl 5.8.2-RC1), "TIS-620" will still fail as a valid
encoding name, although that is still the only Thai character-set name
approved by IANA. So why not applying that simple patch to

As far as I can remember, TIS-620 and ISO-8859-11 are not identical:
the ISO-8859-11 has non-break-space in 0xA0, while the TIS620 doesn't
(where it's undefined).  So aliasing wouldn't be correct, we would need
to have a completely new table for the ISO-8859-11.

Which would not take up much run-time space due to the compression scheme
which shares common table entries between encodings.

Suggest someone copies ISO-8859-11 tweaks it and adds it to the 
8-bit group. (Or starting from definitive TIS-620 would be good).

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