Autocomplete: Support for accent-folding

[Jörn Zaefferer]

Explanation of accent-folding and an example for YUI: ​http://www.alistapart.com/articles/accent-folding-for-auto-complete/

Autocomplete should support adding accent-folding on top.

[lambacck]

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.

[lambacck]

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 );

[lambacck]

Wrong bug for that last comment.

[Scott González]

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

[Scott González]

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).

[Scott González]

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

Changeset: 5debdb08d7702e9c04b4efa883c68d350576d710