Folks-

As usual, the final solution was a bit more complicated than I thought, but I wanted to provide a final update in case others have the same issue.

The attached code shows what I did in order to translate unicode characters into ASCII with Text::Unidecode. This will translate the entire string on each keystroke, and works with cut-n-paste as well.

NOTE: when using a text variable for the text in the entry, you cannot simply re-assign text to it in the validatecommand() sub. One trick is to use afterIdle() to do that later.

Thanks again to all for the help!

Craig 

#!/opt/homebrew/bin/perl

use strict;
use warnings;

use Data::Dumper;

use Tk;
use utf8;
use Text::Unidecode;

my $mw = MainWindow->new();
my $textvar;

my $e = $mw->Entry(-textvariable => \$textvar,
    -validate => 'key',
    -validatecommand => sub {
        my ($new,$changed,$old,$ix,$type) = @_;
        return 1 if (!defined($changed));
        return 1 if ($new eq "") or ($type<0);
        $mw->afterIdle(sub{
            $textvar = unidecode($new);
            print STDERR "ASCII: $textvar\n";
        });
        return 1;
    },
)->pack();

MainLoop;

[download]

In reply to My Solution: Tk Entry & Right Single Quote by cmv
in thread Tk Entry & Right Single Quote by cmv

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.