William Overington <WOverington at ngo dot globalnet dot co dot uk>
wrote:

> Have you considered the possibility of a similar program to encode a
> string of ASCII characters as plane 14 tags please, with an option
> checkbox to include the U+E0001 character at the start and an option
> checkbox to include a U+E007F character?  That would be a very useful
> program which could be used in conjunction with SC UniPad to marshall
> plain text which uses language tags.

Heh heh heh.  You have just described a program I wrote last year called
LTag, which was designed precisely to provide quick and easy entry of
Plane 14 language tags and which I used to offer for free on my Web
site.

Actually it was even cooler than you described; it included a complete
and up-to-date list of ISO 639 and ISO 3166 codes, so the user could
simply select the desired language and (optionally) country *by name*
from a drop-down list OR type the codes manually.  ISO 3166-2 country
subdivision codes were included too, so codes like en-us-ny (for New
York English) could be constructed.  The country subdivision list was
automatically updated when the country was changed.

There was a check box to create a cancel tag, as you mentioned.
Everything was validated according to RFC 3066, so an invalid code like
"a" or "en-a" could not be created.

Upon clicking the OK button, the completed language tag was copied to
the clipboard, where another program such as -- you guessed it -- SC
UniPad could paste it in.  In fact, I originally wrote LTag as a
prototype for possible addition to UniPad.  Luckily, the UniPad
development team saw the writing on the wall sooner than I did regarding
Plane 14 tags.

What happened to LTag?  Well, as everybody knows, the Unicode Technical
Committee strongly discourages the usage of these tags, to the point
were they were almost deprecated earlier this year.  They are permitted
only in "special protocols," and are certainly frowned upon for use in
arbitrary plain text, which is what LTag was for.  So, in an attempt to
restore some of my lost Unicode "street cred" I removed LTag from my
site.  I still keep the program around, but only as a reference to ISO
639 and 3166 codes.

Just as users should not fling Plane 14 language tags around in plain
text, they also should not use Mathematical Alphanumeric Symbols to
create bold, italic, or double-struck effects in plain text.  In case
this is not clear, the user interface and operability of MathText is
very real, but its intended use is a COMPLETE JOKE.  Ha ha!  April Fool!
Please download MathText and get a good laugh -- or use it to test your
font, as one person told me he would -- but please, please don't misuse
Unicode.

-Doug Ewell
 Fullerton, California
 http://users.adelphia.net/~dewell/


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