Autocomplete: Support for accent-folding

It does. I'm doing it.

You want your source to be a function. See the "Combo Box" example for highlighting and the "Remote With Caching" for searching through an object list for values to display. You just need to change the match and highlight to be accent insensitive.

The if condition is also probably needs tweaking. It currently says:

if (new RegExp(cache.term).test(request.term) && cache.content && cache.content.length < 13) {
    var matcher = new RegExp($.ui.autocomplete.escapeRegex(request.term), "i");
    response($.grep(cache.content, function(value) {
        return matcher.test(value.value)
    }));
}

It should be:

if (new RegExp($.ui.autocomplete.escapeRegex(cache.term)).test(request.term) && cache.content && cache.content.length < 13) {
    var matcher = new RegExp($.ui.autocomplete.escapeRegex(request.term), "i");
    response($.grep(cache.content, function(value) {
        return matcher.test(value.value);
    }));
    return;
}

Note that cache.term in the if condition is now wrapped in a call to $.ui.autocomplete.escapeRegex to match the matcher RegExp. Also the original bug is fixed by adding a return to the if block.

Also matcher tests value.value, this is a deviation from how the list of object works in the autocomplete itself. It uses:

return matcher.test( value.label || value.value || value );

Wrong bug for that last comment.

Added a demo in /demos/autocomplete/folding.html in 6a59746d1d97cb24bafe50c1434d9398be9c7585.

Added a link to the demo in 5debdb0. I also built an extension that can be loaded after the plugin to automatically support accent folding when using arrays as the source; it's available in my jQuery UI Extensions repo (source, demo).

Autocomplete: Added link to accent folding demo. Fixes #5219 - Autocomplete: Support for accent-folding.

Changeset: 5debdb08d7702e9c04b4efa883c68d350576d710